Johnson Controls 40 25 TON Installation Operation & Maintenance Download Page 116

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116

Maintenance

JOHNSON CONTROLS

5276178-JIM-C-0118

Belt Replacement

Always replace belts as a set. Follow the steps below

to replace belts:

1. Release the tension on the belts by loosening the

adjusting nuts on the fan motor.

2. Remove old belts and recheck the sheave alignment

with a straight edge.

3. Install the new belts on the sheaves.

Never place the belts on the sheaves by using a

screwdriver to pry the belt over the rim of the sheave.

This will permanently damage the belts.

Use a Browning Belt tension gauge to properly tension

belts

(see Figure 50, Detail B).

PERIODIC MAINTENANCE – YEARLY

Check the fan wheels and inspect the drain pan for

sludge and foreign material. Clean if required.

Observe the operation of all dampers and make any

necessary adjustments in linkage and blade orientation

for proper operation.

Entire Unit Inspection

In addition to the checks listed in this section, periodic

overall inspections of the unit should be accomplished

to ensure proper equipment operation. Items such as

loose hardware, component operation, refrigerant leaks,

unusual noises, etc. should be investigated and corrected

immediately.

Sheave Alignment

To check sheave alignment, a straight edge or a piece of

string can be used. If the sheaves are properly aligned,

the string or straight edge will touch at all points,

as indicated in Figure 51. Rotating the sheaves will

determine if the sheave is wobbly or the drive shaft is

bent. Alignment error must be corrected to avoid bearing

and belt failure.

FIGURE 51 - SHEAVE ALIGNMENT

LD07634

CORD TOUCHING SHEAVES AT

POINTS INDICATED BY ARROWS

CORD TIED

TO SHAFT

Belts

New belts should be rechecked after 24 hours of

operation. On multiple belt adjustable pulleys, the pitch

depth should be checked to insure identical belt travel,

power transfer and wear. Adjustable motor bases are

provided for belt adjustment.

Motor pulleys and blower shaft pulleys are locked

in position with either set screws or split taper lock

bushings. All set screws and/or taper lock bolts must

be checked for tightness and alignment before putting

equipment into operation.

TABLE 66 - BELT ADJUSTMENT

FAN MOTOR HORSE POWER

7.5

30 TON FORWARD CURVED SUPPLY FAN

SIZE 22 X 20

BELT DEFLECTION FORCE (LBS) NEW BELTS

10.5

12.6

15.2

22.1

BELT DEFLECTION FORCE (LBS) OLD BELTS

7.1

8.5

10.2

14.8

40 TON FORWARD CURVED SUPPLY FAN

SIZE: 25 X 20

BELT DEFLECTION FORCE (LBS) NEW BELTS

10.5

12.6

15.2

BELT DEFLECTION FORCE (LBS) OLD BELTS

7.1

8.5

10.2

30 & 40 TON POWER EXHAUST FAN

SIZE: (2) 15 X 15

BELT DEFLECTION FORCE (LBS) NEW BELTS

7.9

9.4

BELT DEFLECTION FORCE (LBS) OLD BELTS

5.3

6.3

25 TON FORWARD CURVE SUPPLY FAN

SIZE: 22 X 20

NEW BELT

10.5

12.6

15.2

OLD BELT

7.1

8.5

10.2

25 TON POWER EXHAUST
NEW BELT

10.5

12.6

OLD BELT

7.1

8.5

Summary of Contents for 40 25 TON

Page 1: ...SERIES 40 ROOFTOP 25 30 AND 40 TON WITH IPU CONTROL 5276178 JIM C 0118 LD14136 INSTALLATION OPERATION MAINTENANCE PACKAGED ROOFTOP AIR CONDITIONING UNITS R 410A ONLY GEN 5 Supersedes 5276178 JIM B 0117 ...

Page 2: ...idual will also be familiar with and comply with all applicable governmental standards and regulations pertaining to the task in question SAFETY SYMBOLS The following symbols are used in this document to alert the reader to areas of potential hazard CAUTION identifies a hazard which could lead to damage to the machine damage to other equipment and or environmental pollution Usually an instruction ...

Page 3: ...o the manual owner that information if applicable can be obtained by contacting the nearest Johnson Controls Applied Systems office It is the responsibility of operating service personnel to verify the applicability of these documents to the equipment in question If there is any question in the mind of operating service personnel as to the applicability of these documents then prior to working on ...

Page 4: ...C 6 Rigid 65 Efficient Merv 11 D 6 Rigid 95 Efficient Merv 14 1 7 5 High Efficiency 25 Ton Only 2 10 High Efficiency 3 15 High Efficiency 4 20 High Efficiency 5 25 High Efficiency 30 40 Ton Only A Drain Pan Powder Coat B Drain Pan Stainless Steel 1 Constant Volume 2 VAV Factory Installed VFD 3 VAV Bypass Factory Installed VFD 4 VAV Customer Installed VFD 5 IntelliSpeed Factory Installed VFD 6 Inte...

Page 5: ...s Cautions and Warnings 19 Gas Fired Models 19 What to Do If You Smell Gas 19 ALL MODELS 20 INSPECTION 20 SECTION 2 INSTALLATION 23 APPROVALS 23 LIMITATIONS 23 LOCATIONS AND CLEARANCES 25 SERVICE ACCESS 26 RIGGING AND HANDLING 26 CFM STATIC PRESSURE AND POWER ALTITUDE AND TEMPERATURE CORRECTIONS 39 ELECTRICAL DATA 57 FILTERS 79 CONDENSATE DRAIN 79 Condensate Drain Piping 79 Condensate Drain Trap 7...

Page 6: ...re Control Plastic Tubing 84 Duct Static Transducer 84 Building Pressure Transducer 84 Static Pressure Probe Installation 84 ROOF CURB INSTALLATION 85 General Information 85 DUCT SYSTEM 85 Duct Connection Guidelines 85 SOUND AND VIBRATION TRANSMISSION 85 GAS HEATING 86 Gas Piping 86 Gas Connection 86 Vent and Combustion Air 87 ELECTRIC HEAT 87 HOT WATER HEAT 87 Piping Connections 88 STEAM HEAT 89 ...

Page 7: ...n 100 POST START CHECKLIST GAS 100 MANIFOLD GAS PRESSURE ADJUSTMENT 100 Burner Instructions 100 Adjustment of Temperature Rise 101 Checking Gas Input 101 ELECTRIC HEATING 101 REFRIGERATION SYSTEM 101 COMPRESSORS 102 MOTORS 102 Indoor Blower Motors 102 Power Exhaust Fan Motors 102 Condenser Fan Motors 102 Draft Motor Gas Furnace 102 hot water and steam coils 102 HOT WATER AND STEAM COILS 103 SECTIO...

Page 8: ...9 Variable Air Volume 130 FlexSys with Bypass Damper 133 FlexSys without Bypass Damper 133 COMPRESSOR CONTROL 133 COMPRESSOR OPERATION WITH ECONOMIZER 134 No Compressors On When Economizer Becomes Active 134 Compressor On When Economizer Becomes Active 134 SUPPLY FAN OPERATION 135 Constant Volume Operation 135 Variable Air Volume VAV 135 VAV Supply Fan Speed Control Set Point Determination 136 COM...

Page 9: ...S BYPASS DAMPER OPERATION 145 EVAPORATOR SUPERHEAT CALCULATION 146 STAGED INPUT FAULT 146 SYSTEM STABILITY CHECK 146 ELECTRIC HEAT 146 Programmed Data 146 Heating Control Offset 146 Active SP 146 Heating Control 146 STAGED GAS HEAT 147 Programmed Data 147 Heating Control Offset 147 Active SP 148 Heating Control 148 Compressor Staged Gas Heat Mode of Operation When Economizer Status 148 Staged Gas ...

Page 10: ...dulating Exhaust with A VFD 155 RETURN FAN OPERATION 155 VENTILATION SYSTEM 155 Overview 155 2 Position Damper 156 Demand Ventilation 156 Fixed Minimum 157 Air Measuring Stations 157 SMOKE PURGE 157 SECTION 6 USER INTERFACE CONTROL CENTER 160 USER INTERFACE CONTROL CENTER 160 Data Entry Keys 160 Navigation Keys 161 Menu Select Keys 161 SETPOINTS 175 PROGRAM 175 OPTIONS 175 DATE TIME 175 SCHEDULE 1...

Page 11: ...DE 192 Additional Settings 193 SECTION 7 PARAMETER DEFENITIONS AND OPTIONS 218 SECTION 8 SERVICE 228 ANALOG INPUT OPERATION 228 Temperature Sensors 228 Duct Pressure Transducer 228 Building Pressure Transducer 229 Humidity Sensors 229 CO2 Sensor 230 Furnace Status Input 230 FAULTS 231 MULTI MEDIA CARD 242 ...

Page 12: ... TABLE 22 ELECTRICAL DATA 25 TON 208 230 VOLT WITHOUT ERV 57 TABLE 23 ELECTRICAL DATA 25 TON 230 VOLT WITH ERV 59 TABLE 24 ELECTRICAL DATA 25 TON 460 VOLT WITHOUT ERV 60 TABLE 25 ELECTRICAL DATA 25 TON 460 VOLT WITH ERV 61 TABLE 26 ELECTRICAL DATA 25 TON 575 VOLT WITHOUT ERV 62 TABLE 27 ELECTRICAL DATA 25 TON 575 VOLT WITH ERV 63 TABLE 28 ELECTRICAL DATA 30 TON 208 230 VOLT WITHOUT ERV 64 TABLE 29...

Page 13: ... 102 TABLE 55 STATIC RESISTANCE STEAM COIL 40 TON 102 TABLE 56 HOT WATER COIL 1 ROW 25 30 TON 1 103 TABLE 57 WATER PRESSURE DROP 1 ROW 25 30 TON 103 TABLE 58 WATER PRESSURE DROP 1 ROW 40 TONS 103 TABLE 59 HOT WATER COIL 1 ROW 40 TON 1 104 TABLE 60 HOT WATER COIL 2 ROW 25 30 TON 1 104 TABLE 61 WATER PRESSURE DROP 2 ROW 25 30 TON 105 TABLE 62 WATER PRESSURE DROP 2 ROW 40 TON 105 TABLE 63 STATIC RESI...

Page 14: ...04 TABLE 92 N2 POINTS LIST 210 TABLE 93 PARAMETER DEFINITIONS 218 TABLE 94 TEMPERATURE SENSOR RESISTANCE 228 TABLE 95 DUCT PRESSURE TRANSDUCER 229 TABLE 96 BUILDING PRESSURE TRANSDUCER OUTPUT 229 TABLE 97 HUMIDITY SENSOR OUTPUTS 229 TABLE 98 CO2 SENSOR OUTPUT 230 TABLE 99 FURNACE STATUS INPUT STAGED GAS HEAT 230 TABLE 100 I O CONTROL BOARD ANALOG INPUT PIN OUTS 236 TABLE 101 WARNING DESCRIPTION 23...

Page 15: ...D CURVE 44 FIGURE 20 FAN PERFORMANCE 30 TON FORWARD CURVE 47 FIGURE 21 FAN PERFORMANCE 40 TON FORWARD CURVE 50 FIGURE 22 POWER EXHAUST ONE FORWARD CURVE FAN 25 TON 54 FIGURE 23 POWER EXHAUST TWO FORWARD CURVED FANS 30 40 TONS 56 FIGURE 25 RECCOMMENDED DRAIN PIPING 79 FIGURE 24 DRAIN TRAP SHOWING WATER LOCATION DURING DRAW THROUGH OPERATION STAGES 79 FIGURE 26 FIELD CONTROL WIRING INPUTS 82 FIGURE ...

Page 16: ...9 30 TON CHARGING CURVE 122 FIGURE 60 40 TON CHARGING CURVE 123 FIGURE61 PRESSURE DROP DRY EVAPORATOR COIL VS SUPPLY AIR CFM 25 TON 123 FIGURE 62 PRESSURE DROP DRY EVAPORATOR COIL VS SUPPLY AIR CFM 30 TON 124 FIGURE 63 PRESSURE DROP DRY EVAPORATOR COIL VS SUPPLY AIR CFM 40 TON 124 FIGURE 64 R410A QUICK REFERENCE GUIDE 125 FIGURE 65 DIFFERENCES F BETWEEN ZONE TEMPERATURE AND SET POINTS 127 FIGURE 6...

Page 17: ...ssors and less equipment down time With multiple circuits if a compressor should ever fail on one circuit the other circuit s will remain operational to work to maintain occupied loads The Series 40 has 4 compressor 4 circuits ECOLOGICAL AND ECONOMICAL DESIGN First packaged RTU with R410A optimized design Cooling and Heating Superior operating performance provides lower operating costs Smaller ste...

Page 18: ...ep function the Series 40 can ef fectively reduce energy consumption by bringing on smaller stages of heat while maintaining the maximum level of comfort AIR MANAGEMENT The Johnson Controls FlexSys Underfloor Air system provides a cutting edge cost competitive alternative to conventional overhead air distribution systems based on the performance and system flexibility benefits that it can provide ...

Page 19: ...BACnet open protocol communication capabilities An 80 character display and keypad are standard for simple and easy to understand manipulation of control setpoints and readout of operating parameters and diagnostics Shutdown and alarm faults are all recorded in memory and include a time and day stamp for easy troubleshooting BACnet The Series 40 can be adapted to operate with any building automati...

Page 20: ... this system Gage sets hoses refrigerant containers and recovery systems must be designed to handle R 410A If you are unsure consult the equipment manufacturer Failure to use R 410A compatible servicing equipment may result in property dam age or injury Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical components Only trained and qualif...

Page 21: ... ACCESS EVAPORATOR COIL AND DRAIN PAN ACCESS POWER CONTROL WIRING COMPRESSOR ACCESS HEAT SECTION POWER EXHAUST ACCESS FILTER ACCESS HEAT SECTION SUPPLY BLOWER MOTOR FILTER DRIERS RIGHT END LEFT END FRONT REAR REAR OPTIONAL POWER OUTLET 115V EVAPORATOR COIL AND DRAIN PAN ACCESS ...

Page 22: ...22 JOHNSON CONTROLS 5276178 JIM C 0118 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 23: ...tion gas fired units must be adjusted to obtain a temperature rise within the range specified on the unit rating plate If components are to be added to a unit to meet local codes they are to be installed at the contractor and or the customer s expense Size of unit for proposed installation should be based on heat loss heat gain calculation made according to the methods of the Air Conditioning Cont...

Page 24: ...S RATE CU FT HR 3 1ST STAGE TOTAL 1ST STAGE TOTAL N3 S2 S3 S4 267 267 213 247 247 N5 S2 S3 S4 267 533 426 247 495 N8 S4 ONLY 2674 800 638 247 742 1 Heating capacity is only staged on CV models VAV models use only one stage at full capacity 2 Blower motor heat not included 3 Based on a heat content of 1075 BTU Ft 3 GAS RATE Input MBH 3 1 075MBH Ft 4 Unit Control Board with 3 heating outputs only Fo...

Page 25: ...ompressors evaporator coils and supply or exhaust fans While it is a common practice to operatethefanassoonaspossible e g air movement during construction on the job site the incomplete duct work and missing diffuser grilles will greatly reduce air resistance and will allow the fan to operate beyond design parameters This practice may result in water carryover and flooding of the unit Also the sup...

Page 26: ...ernal components and that it be handled in an upright position Care must be exercised to avoid twisting the equipment structure Unit weights are listed under Table 8 9 and 10 in this manual These weights must be referred to when selecting a crane for rigging and figuring roof weight loads Contact your Johnson Controls Sales Office if you have any questions regarding unit weights All panels must be...

Page 27: ...ICE TO RIGGERS 1 RIG WITH SIX CABLES AND THREE SPREADER BARS AT 2 CENTER OF GRAVITY INCLUDES ECONOMIZER POWER EXHAUST AND INLET GUIDE VANES 3 AFTER UNIT IS IN PLACE INSTALL COVER PLATE OVER RIGGING HOLES ON POWER EXHAUST END LEAST 95 ACROSS THE WIDTH OF THE UNIT CABLES SPREADER BARS SPREADER BAR 1 Rig with six cables and three spreader bars at least 95 across width of the unit 2 Center of gravity ...

Page 28: ... weight of an exhaust VFD it will be in the unit X Y 92 240 A B C D RIGHT END CONDENSER COIL END FRONT BACK CENTER OF GRAVITY LD14172A Note If the Series 40 is VAV with ERV add the weight of an exhaust VFD it will be in the unit TABLE 8 UNIT WEIGHTS COMPONENT 25 TON 30 TON 40 TON AF IGV 155 155 180 MOTOR SUPPLY FAN 7 5HP 110 10HP 145 145 145 15HP 200 200 200 20HP 240 240 240 25HP 300 300 SUPPLY FA...

Page 29: ...PE 1 FC 2 FC 2 FC HP RANGE SINGLE MOTOR 5 10 7 5 15 7 5 15 CFM 3 000 9 000 4 000 15 000 4 000 18 000 EVAPORATOR COIL SIZE SQ FT 26 0 26 0 30 4 ROWS FPI 3 16 4 16 4 16 CONDENSER COIL SIZE SQ FT 65 104 104 ROWS FPI 2 16 2 16 2 16 CONDENSER FANS QUANTITY DIAMETER INCHES 4 24 4 30 4 30 NOMINAL CFM 6 800 8 770 9 460 MOTOR HP 1 0 1 5 1 5 ELECTRIC HEAT KW RANGE 40 108 40 108 40 108 40 KW CAPACITY STEPS C...

Page 30: ...4 16 X 25 6 20 X 25 4 16 X 25 6 20 X 25 FACE AREA SQ FT 30 4 30 4 30 4 FILTERS 2 PLEATED 30 NUMBER SIZE 4 16 X 25 6 20 X 25 4 16 X 25 6 20 X 25 4 16 X 25 6 20 X 25 FACE AREA SQ FT 30 4 30 4 30 4 FILTERS 65 RIGID W 2 TA PREFILTERS NUMBER SIZE 4 16 X 25 6 20 X 25 4 16 X 25 6 20 X 25 4 16 X 25 6 20 X 25 FACE AREA SQ FT 30 4 30 4 30 4 FILTERS 95 RIGID W 2 TA PREFILTERS NUMBER SIZE 4 EA 16 X 25 6 EA 20...

Page 31: ... 12 MIN SUPPLY AIR RETURN AIR REAR REAR LEFT END LEFT END RIGHT END RIGHT END FRONT FRONT 2 31 Ø 2 1 2 3 5 8 6 45 BASE RAIL DETAIL B ELECTRICAL CONNECTION FOR COOLING ONLY AND ALL HEATING APPLICATIONS 28 2 1 2 DIA HOLES TO GAS VALVE MANIFOLD 7 1 1 4 NPT 11 DETAIL C GAS CONNECTION THROUGH CURB 1 1 2 FPT DETAIL A DRAIN CONNECTION BASE RAIL 4 5 8 SEE DETAIL C SEE DETAIL B 99 5 131 5 ...

Page 32: ...A DRAIN CONNECTION DETAIL B ELECTRICAL CONNECTION FOR COOLING ONLY AND ALL HEATING APPLICATIONS BASE RAIL BASE RAIL 28 2 1 2 DIA HOLES TO GAS VALVE MANIFOLD 7 1 1 4 NPT 11 DETAIL C GAS CONNECTION THROUGH CURB 4 5 8 240 64 SEE DETAIL A 99 5 131 5 SEE DETAIL B 72 25 OPEN 7 7 8 76 3 8 24 9 6 25 26 4 5 15 89 71 61 SEE DETAIL C 3 625 6 46 12 MIN C L 88 7 REAR RIGHT END LEFT END FRONT FRONT RIGHT END LE...

Page 33: ...AIL BASE RAIL 28 2 1 2 DIA HOLES TO GAS VALVE MANIFOLD 7 1 1 4 NPT 11 DETAIL C GAS CONNECTION THROUGH CURB 4 5 8 FRONT SUPPLY FOR COOLING ONLY APPLICATIONS REAR SUPPLY FOR COOLING ONLY OR GAS HEAT APPLICATIONS RETURN AIR SUPPLY AIR 240 38 59 83 4 5 4 5 64 92 80 93 SEE DETAIL A 99 5 131 5 72 25 OPEN 26 3 625 6 46 12 MIN SEE DETAIL C SEE DETAIL B 8 15 FRONT FRONT FRONT REAR REAR LEFT END LEFT END RE...

Page 34: ... A 99 5 131 5 SEE DETAIL C SEE DETAIL B 26 55 72 25 OPEN 7 7 8 8 15 24 9 6 25 3 625 6 46 12 MIN 55 RIGHT END RIGHT END LEFT END LEFT END REAR REAR REAR FRONT FRONT 1 1 2 FPT 2 31 3 5 8 6 45 2 1 2 DETAIL A DRAIN CONNECTION DETAIL B ELECTRICAL CONNECTION FOR COOLING ONLY AND ALL HEATING APPLICATIONS BASE RAIL BASE RAIL 28 2 1 2 DIA HOLES TO GAS VALVE MANIFOLD 7 1 1 4 NPT 11 DETAIL C GAS CONNECTION T...

Page 35: ...35 2 JOHNSON CONTROLS 5276178 JIM C 0118 FIGURE 10 PARTIAL ROOF CURB MODEL 1RC0455P LD14177 ...

Page 36: ...M DOOR SWING OF HEAT SECTION DOOR WHEN OPEN UNISTRUT 1 5 8 W x 7 8 H OR EQUIVALENT 47 34 INCHES IS THE MINIMUM LENGTH REQUIRED TO MOUNT TO THE FOUR POINTS SHOWN THE RAILS CAN BE EXTENDED TO MOUNT A TALLER DISCONNECT SWITCH BUT THESE FOUR POINTS SHOULD BE USED TO MOUNTTHE RAILS TO THE UNIT 15 00 FIGURE 11 FIELD INSTALLED DISCONNECT 259 68 35 42 39 31 93 43 241 22 ...

Page 37: ...CTION EVAPORATOR SECTION FILTER SECTION ECONOMIZER POWER EXHAUST SECTION 64 4 19 75 93 25 95 36 08 29 73 31 13 41 94 FIGURE 14 25 TON MAJOR COMPONENT LAYOUT CONDENSER SECTION 89 37 GAS HEAT SECTION 27 40 BLOWER SECTION 36 08 EVAPORATOR SECTION 29 73 FILTER SECTION 31 13 ECONOMIZER POWER EXHAUST SECTION 41 94 64 4 19 FIGURE 15 30 AND 40 TON MAJOR COMPONENT LAYOUT ...

Page 38: ...nged Tool Free w Gas or Other Heat Source FRONT VIEW 1 2 3 STD Cabinet Option includes Hinged Tool Free Doors 1 3 6 8 Premium Cabinet Option includes Hinged Tool Free Doors 1 2 3 6 7 8 Doors 4 5 9 are dependent upon unit Heating and Power Exhaust Options Doors 1 2 3 6 7 8 9 are 56 31 inches high by 27 33 inches wide Doors 4 5 are 26 5 inches high by 33 63 inches wide Door configurations are the sa...

Page 39: ...tatic pressure to equivalent sea level conditions Sea level static pressure 1 5 832 1 80 Enter the blower table at 6000 SCFM and static pressure of 1 8 The rpm listed will be the same rpm needed at 5 000 ft Suppose that the corresponding BHP listed in the table is 3 2 This value must be corrected for elevation BHP at 5 000 ft 3 2 x 832 2 66 Example 3 Plotting fan performance using the charts provi...

Page 40: ...LS 5276178 JIM C 0118 Installation FIGURE 17 ALTITUDE TEMPERATURE CONVERSION FACTOR LD14179 ALTITUDE TEMPERATURE CONVERSION FACTOR TEMPERATURE CORRECTION FACTOR 1 100 1 000 0 900 0 800 0 700 0 600 40 50 60 70 80 90 100 ...

Page 41: ...41 2 JOHNSON CONTROLS 5276178 JIM C 0118 FIGURE 18 40 TON FORWARD CURVE EXAMPLE ...

Page 42: ...3 2 5000 582 2 4 621 2 7 657 3 1 692 3 5 724 3 9 6000 596 2 9 633 3 3 669 3 7 702 4 1 735 4 5 7000 615 3 6 650 4 0 683 4 5 716 4 9 747 5 4 8000 633 4 4 666 4 8 698 5 3 729 5 7 759 6 2 9000 658 5 3 688 5 8 718 6 3 747 6 8 776 7 3 10000 682 6 3 710 6 8 738 7 3 766 7 8 793 8 4 11000 713 7 7 739 8 2 765 8 8 791 9 3 816 9 9 12000 743 9 1 767 9 7 791 10 2 815 10 8 839 11 4 12500 760 10 0 784 10 6 807 11...

Page 43: ...0 6 959 11 2 983 11 9 1007 12 5 1030 13 2 10000 944 11 9 968 12 6 992 13 2 1015 13 8 1037 14 5 11000 961 13 6 984 14 2 1007 14 9 1029 15 6 1051 16 2 12000 978 15 2 1000 15 9 1022 16 6 1043 17 3 1064 18 0 13000 986 16 2 1008 16 8 1029 17 5 1050 18 2 1070 19 0 1 Fan performance is based on wet evaporator coils clean 2 throwaway filters and system cabinet effects at standard air density and 0 feet el...

Page 44: ...oil clean 2 throwaway filters system and cabinet effects at standard air density and 0 elevation Line A internal unit static region Add to ESP and additional losses Options Accessories FIGURE 19 FAN PERFORMANCE 25 TON FORWARD CURVE Note All areas below the A curve are fixed internal cabinet losses and should be considered when determining total system static and plotting unit fan performance Note ...

Page 45: ...634 3 8 668 4 3 701 4 7 733 5 1 763 5 6 8000 655 4 6 687 5 1 719 5 5 749 6 0 779 6 5 9000 680 5 6 710 6 1 739 6 6 768 7 2 796 7 7 10000 704 6 7 732 7 2 760 7 7 787 8 3 813 8 9 11000 735 8 2 761 8 7 787 9 3 812 9 8 837 10 4 12000 766 9 7 790 10 3 814 10 8 837 11 4 861 12 0 13000 798 11 5 820 12 1 843 12 7 865 13 3 887 13 9 14000 830 13 3 851 13 9 872 14 6 893 15 2 914 15 9 15000 864 15 6 884 16 3 9...

Page 46: ... 11000 981 14 1 1003 14 8 1025 15 5 1047 16 1 1069 16 8 12000 997 15 7 1019 16 4 1040 17 1 1061 17 8 1082 18 5 13000 1017 17 9 1038 18 6 1058 19 4 1078 20 1 1097 20 8 14000 1037 20 2 1056 20 9 1076 21 6 1094 22 4 1113 23 1 15000 1059 22 6 1078 23 3 1097 24 1 1115 24 9 1134 25 7 1 Fan performance is based on wet evaporator coils clean 2 throwaway filters and system cabinet effects at standard air d...

Page 47: ... and cabinet effects at standard air density and 0 elevation 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CFM x1000 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 Total Static Pressure IWG 1 1 0 0 R P M 9 0 0 8 0 0 700 600 500 1 0 0 0 A 30 Ton Forward Curve 1 0 15 2 0 B H P A Standard Unit Note Standard Unit includes wet evaporator coil clean 2 throwaway filters system and cabinet ef...

Page 48: ...5 9 652 6 4 10000 552 4 9 582 5 5 610 6 0 636 6 5 662 7 1 11000 569 5 7 596 6 3 623 6 9 649 7 5 674 8 1 12000 585 6 6 612 7 2 637 7 8 662 8 5 686 9 1 13000 599 7 5 626 8 1 650 8 8 674 9 5 699 10 2 14000 616 8 5 641 9 2 666 9 9 689 10 7 712 11 4 15000 637 9 9 660 10 6 684 11 3 707 12 1 729 12 9 16000 658 11 3 680 12 0 702 12 8 724 13 6 745 14 3 17000 678 12 9 699 13 6 721 14 4 742 15 3 762 16 1 180...

Page 49: ...48 15 4 868 16 2 887 17 0 907 17 7 14000 839 16 0 858 16 8 878 17 6 896 18 4 915 19 2 15000 850 17 7 870 18 5 889 19 3 907 20 1 926 21 0 16000 863 19 3 882 20 2 900 21 1 918 22 0 936 22 8 17000 877 21 3 896 22 2 913 23 1 931 23 8 944 24 6 18000 891 23 3 910 24 2 928 25 1 946 26 1 1 Fan performance is based on wet evaporator coils clean 2 throwaway filters and system cabinet effects at standard air...

Page 50: ... 7 0 Total Static Pressure IWG 900 RPM 800 700 600 500 400 300 10 1 5 2 0 2 5 B H P A Line A internal unit static region Add to ESP and additional losses Options Accessories FIGURE 21 FAN PERFORMANCE 40 TON FORWARD CURVE Note All areas below the A curve are fixed internal cabinet losses and should be considered when determining total system static and plotting unit fan performance Note Standard Un...

Page 51: ...SELINE RIGID 6 65 0 06 0 12 0 19 0 27 0 36 0 46 0 58 0 70 RIGID 6 95 0 13 0 26 0 41 0 60 0 81 1 04 1 29 1 57 IGV LOSSES 25 30 TON F C 0 02 0 05 0 08 0 13 0 19 0 26 0 34 0 43 40 TON F C 0 01 0 03 0 05 0 08 0 11 0 15 0 19 0 25 GAS HEAT 267 MBH HEAT 0 07 0 11 0 14 0 18 0 21 0 25 0 28 0 32 533 MBH HEAT 0 14 0 21 0 28 0 35 0 42 0 49 0 57 0 64 800 MBH HEAT 0 21 0 32 0 42 0 53 0 64 0 74 0 85 0 95 ELECTRI...

Page 52: ... TON 617 10 215T 89 5 91 4 9 1 3 8 13 9 2 7 16 BX67 2 652 15 254T 91 91 7 5 1 1 5 8 13 7 2 7 16 5VX710 2 728 20 256T 91 93 5 7 1 5 8 13 7 2 7 16 5VX710 2 780 25 284T 91 7 93 6 6 1 1 7 8 13 7 2 7 16 5VX710 2 TABLE 19 EXHAUST FAN DRIVE DATA MODEL BLOWER RPM RANGE MOTOR MOTOR PULLEY BLOWER PULLEY BELTS HP FRAME SIZE MOTOR EFF STD MOTOR MOTOR EFF HI EFF OPT PITCH DIA IN BORE IN PITCH DIA IN BORE IN DE...

Page 53: ...4 1119 10 8 1143 11 1 1167 11 4 1 Fan performance is based on system cabinet effects and back draft damper effects at standard air density and 0 feet of elevation 2 BHP includes 5 drive losses TABLE 20 POWER EXHAUST ONE FORWARD CURVED FAN 25 TON AIRFLOW CFM AVAILABLE EXTERNAL STATIC PRESSURE IWG 0 2 0 4 0 6 0 8 1 0 RPM BHP2 RPM BHP2 RPM BHP2 RPM BHP2 RPM BHP2 2000 524 0 3 609 0 4 685 0 6 3000 450 ...

Page 54: ...RWARD CURVE FAN 25 TON Power Exhaust 25 Ton 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 CFM x1000 Total Static Pressure IWG 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 5 BHP 7 5 BHP 10 BHP LD14183 ...

Page 55: ... based on system cabinet effects and back draft damper effects at standard air density and 0 feet elevation 2 BHP includes the sum of both exhaust fan motors 3 BHP includes 5 drive losses TABLE 21 POWER EXHAUST TWO FORWARD CURVED FANS 30 40 TON AIRFLOW CFM AVAILABLE EXTERNAL STATIC PRESSURE IWG 0 2 0 4 06 0 8 1 0 RPM BHP2 3 RPM BHP2 3 RPM BHP2 3 RPM BHP2 3 RPM BHP2 3 4000 363 0 32 468 0 53 560 0 7...

Page 56: ...56 JOHNSON CONTROLS 5276178 JIM C 0118 Installation FIGURE 23 POWER EXHAUST TWO FORWARD CURVED FANS 30 40 TONS LD14184 ...

Page 57: ...7 175 167 175 7 5 22 164 175 174 200 10 28 170 175 180 200 15 42 159 200 170 200 5 15 2 175 200 185 225 7 5 22 181 200 192 225 10 28 187 225 198 225 20 54 174 225 185 225 5 15 2 190 225 200 250 7 5 22 196 250 207 250 10 28 202 250 213 250 208 3 60 4 22 4 149 35 4 5 E4 30 1 83 11 5 7 5 24 2 138 150 149 150 5 16 7 155 175 166 175 7 5 24 2 162 175 174 175 10 30 8 170 200 182 200 10 30 8 146 175 158 1...

Page 58: ...8 236 250 248 250 15 46 2 225 250 236 250 5 16 7 241 250 253 300 7 5 24 2 249 250 260 300 10 30 8 256 300 267 300 20 59 4 241 300 253 300 5 16 7 258 300 269 300 7 5 24 2 265 300 277 300 10 30 8 272 300 284 300 230 3 60 4 22 4 149 35 4 3 E8 80 2 185 10 4 7 5 22 213 250 223 250 5 15 2 228 250 238 250 7 5 22 235 250 245 250 10 28 242 250 252 300 10 28 220 250 230 250 5 15 2 235 250 246 250 7 5 22 242...

Page 59: ...as 10 4 7 5 22 0 25 2 5 5 15 2 167 175 178 200 10 28 175 200 185 200 15 42 192 225 203 225 20 54 207 250 218 250 208 3 60 4 22 4 149 35 4 5 E4 30 1 83 11 5 7 5 24 2 0 25 2 5 5 16 7 174 175 185 200 10 30 8 182 200 194 200 15 46 2 201 225 213 250 20 59 4 218 250 229 250 230 3 60 4 22 4 149 35 4 3 E4 40 1 92 10 4 7 5 22 0 25 2 5 5 15 2 175 175 186 200 10 28 183 200 193 200 15 42 200 225 211 250 20 54...

Page 60: ...00 89 110 5 7 6 91 110 97 110 7 5 11 95 110 100 110 10 14 98 110 103 110 20 27 91 110 96 110 5 7 6 99 125 104 125 7 5 11 102 125 107 125 10 14 105 125 110 125 460 3 60 4 10 6 75 16 5 2 2 E8 80 2 92 5 2 7 5 11 106 125 111 125 5 7 6 113 125 119 125 7 5 11 117 125 122 125 10 14 121 125 126 150 10 14 110 125 115 125 5 7 6 117 125 122 125 7 5 11 121 125 126 150 10 14 124 125 129 150 15 21 118 125 123 1...

Page 61: ...15 NONE H2O GAS 5 2 7 5 11 0 25 1 2 5 7 6 81 90 86 90 10 14 85 90 90 100 15 21 94 110 99 110 20 27 101 125 106 125 460 3 60 4 10 6 75 16 5 2 15 E4 40 1 46 5 2 7 5 11 0 25 1 2 5 7 6 88 90 93 100 10 14 91 100 97 110 15 21 100 110 105 125 20 27 108 125 113 125 460 3 60 4 10 6 75 16 5 2 15 E8 80 2 92 5 2 7 5 11 0 25 1 2 5 7 6 122 125 127 150 10 14 126 150 131 150 15 21 135 150 140 150 20 27 142 150 14...

Page 62: ...0 75 90 5 6 1 77 90 82 90 7 5 9 80 90 84 100 10 11 82 90 86 100 20 22 78 100 82 100 5 6 1 84 100 88 110 7 5 9 87 100 91 110 10 11 89 110 93 110 575 3 60 4 7 7 54 12 1 7 E8 80 2 80 4 2 7 5 9 91 100 95 100 5 6 1 97 100 102 110 7 5 9 100 100 104 110 10 11 103 110 107 110 10 11 94 100 98 100 5 6 1 100 110 104 110 7 5 9 103 110 107 110 10 11 105 110 109 110 15 17 101 110 105 110 5 6 1 107 110 112 125 7...

Page 63: ...7 54 12 1 7 NONE H2O GAS 4 2 7 5 9 0 25 0 95 5 6 1 62 70 66 70 10 11 65 70 69 80 15 17 72 80 76 90 20 22 78 100 82 100 575 3 60 4 7 7 54 12 1 7 E4 40 1 40 4 2 7 5 9 0 25 0 95 5 6 1 74 80 79 80 10 11 77 80 81 90 15 17 84 100 89 100 20 22 91 110 95 110 575 3 60 4 7 7 54 12 1 7 E8 80 2 80 4 2 7 5 9 0 25 0 95 5 6 1 104 110 109 110 10 11 107 110 111 125 15 17 114 125 119 125 20 22 121 125 125 125 575 3...

Page 64: ...8 225 208 250 10 28 204 225 214 250 15 42 218 250 228 250 20 54 191 225 201 250 7 5 22 213 250 223 250 10 28 219 250 229 250 15 42 233 250 243 250 25 68 208 250 219 250 7 5 22 230 250 241 300 10 28 236 300 247 300 15 42 250 300 261 300 208 3 60 4 25 164 39 5 8 E4 30 1 83 11 5 10 30 8 162 175 173 200 7 5 24 2 186 200 197 225 10 30 8 193 200 204 225 15 46 2 212 250 223 250 15 46 2 181 225 192 225 7 ...

Page 65: ...1 300 282 300 20 59 4 241 300 253 300 7 5 24 2 265 300 277 300 10 30 8 272 300 284 300 15 46 2 287 300 299 350 25 74 8 261 300 272 300 7 5 24 2 285 350 296 350 10 30 8 291 350 303 350 15 46 2 307 350 318 350 230 3 60 4 25 164 39 5 8 E8 80 2 185 10 4 10 28 220 250 230 250 7 5 22 242 250 252 300 10 28 248 250 258 300 15 42 266 300 276 300 15 42 238 250 248 250 7 5 22 260 300 270 300 10 28 266 300 27...

Page 66: ...09 250 219 250 7 5 22 222 250 233 250 20 54 0 25 2 5 5 15 2 224 250 234 250 7 5 22 237 250 248 300 25 68 0 25 2 5 5 15 2 241 300 252 300 7 5 22 255 300 265 300 208 3 60 4 25 164 39 5 8 E4 30 1 83 11 5 10 30 8 0 25 2 5 5 16 7 198 225 209 225 7 5 24 2 213 225 224 250 15 46 2 0 25 2 5 5 16 7 217 250 228 250 7 5 24 2 232 250 243 250 20 59 4 0 25 2 5 5 16 7 233 250 245 300 7 5 24 2 248 300 260 300 25 7...

Page 67: ...KER3 SIZE MCA1 MAX FUSE2 BREAKER3 SIZE QTY RLA LRA MCC FLA MODEL KW STAGES AMPS FLA HP FLA HP FLA HP FLA AMPS AMPS AMPS AMPS 230 3 60 4 25 164 39 5 8 E8 80 2 185 10 4 10 28 0 25 2 5 5 15 2 253 300 263 300 7 5 22 267 300 277 300 15 42 0 25 2 5 5 15 2 270 300 281 300 7 5 22 284 300 294 300 20 54 0 25 2 5 5 15 2 285 300 296 350 7 5 22 299 350 309 350 25 68 0 25 2 5 5 15 2 303 350 313 350 7 5 22 317 3...

Page 68: ...5 113 125 20 27 94 110 99 125 7 5 11 105 125 110 125 10 14 108 125 113 125 15 21 115 125 120 125 25 34 103 125 108 125 7 5 11 114 125 119 150 10 14 117 150 122 150 15 21 124 150 129 150 460 3 60 4 12 2 100 19 2 9 E8 80 2 92 5 2 10 14 110 125 115 125 7 5 11 121 125 126 150 10 14 124 125 129 150 15 21 132 150 137 150 15 21 118 125 123 125 7 5 11 129 150 134 150 10 14 132 150 137 150 15 21 139 150 14...

Page 69: ...0 19 2 9 E4 40 1 46 5 2 10 14 0 25 1 2 5 7 6 94 100 100 110 7 5 11 101 110 106 110 15 21 0 25 1 2 5 7 6 103 110 108 125 7 5 11 110 125 115 125 20 27 0 25 1 2 5 7 6 111 125 116 125 7 5 11 117 125 123 150 25 34 0 25 1 2 5 7 6 119 150 125 150 7 5 11 126 150 131 150 460 3 60 4 12 2 100 19 2 9 E8 80 2 92 5 2 10 14 0 25 1 2 5 7 6 126 150 131 150 7 5 11 133 150 138 150 15 21 0 25 1 2 5 7 6 135 150 140 15...

Page 70: ...78 100 82 100 7 5 9 87 100 91 110 10 11 89 110 93 110 15 17 95 110 99 110 25 27 84 110 88 110 7 5 9 93 110 97 110 10 11 95 110 99 125 15 17 101 125 105 125 575 3 60 4 9 78 14 2 2 E8 80 2 80 4 2 10 11 94 100 98 100 7 5 9 103 110 107 110 10 11 105 110 109 110 15 17 112 125 116 125 15 17 101 110 105 110 7 5 9 110 125 114 125 10 11 112 125 116 125 15 17 118 125 122 125 20 22 108 125 112 125 7 5 9 117 ...

Page 71: ...14 2 2 E4 40 1 40 4 2 10 11 0 25 0 95 5 6 1 77 80 81 90 7 5 9 83 90 87 90 15 17 0 25 0 95 5 6 1 84 100 89 100 7 5 9 90 100 94 110 20 22 0 25 0 95 5 6 1 91 110 95 110 7 5 9 96 110 101 110 25 27 0 25 0 95 5 6 1 97 110 101 125 7 5 9 103 125 107 125 575 3 60 4 9 78 14 2 2 E8 80 2 80 4 2 10 11 0 25 0 95 5 6 1 107 110 111 125 7 5 9 113 125 117 125 15 17 0 25 0 95 5 6 1 114 125 119 125 7 5 9 120 125 124 ...

Page 72: ...1 250 221 250 10 28 217 250 227 250 15 42 231 250 241 250 20 54 204 250 214 250 7 5 22 226 250 236 250 10 28 232 250 242 250 15 42 246 300 256 300 25 68 221 250 231 250 7 5 22 243 300 253 300 10 28 249 300 259 300 15 42 263 300 273 300 208 3 60 4 28 2 240 44 5 8 E4 30 1 83 11 5 10 30 8 175 200 186 200 7 5 24 2 199 225 210 225 10 30 8 205 225 217 225 15 46 2 225 250 236 250 15 46 2 194 225 205 250 ...

Page 73: ...50 7 5 24 2 249 250 260 300 10 30 8 256 300 267 300 15 46 2 271 300 282 300 20 59 4 241 300 253 300 7 5 24 2 265 300 277 300 10 30 8 272 300 284 300 15 46 2 287 300 299 350 25 74 8 261 300 272 300 7 5 24 2 285 350 296 350 10 30 8 291 350 303 350 15 46 2 307 350 318 350 230 3 60 4 28 2 240 44 5 8 E8 80 2 185 10 4 10 28 220 250 230 250 7 5 22 242 250 252 300 10 28 248 250 258 300 15 42 266 300 276 3...

Page 74: ... E4 30 1 83 11 5 10 30 8 0 25 2 5 5 16 7 210 225 222 250 7 5 24 2 225 250 237 250 15 46 2 0 25 2 5 5 16 7 230 250 241 250 7 5 24 2 245 250 256 300 20 59 4 0 25 2 5 5 16 7 246 300 258 300 7 5 24 2 261 300 273 300 25 74 8 0 25 2 5 5 16 7 265 300 277 350 7 5 24 2 280 350 292 350 230 3 60 4 28 2 240 44 5 8 E4 40 1 92 10 4 10 28 0 25 2 5 5 15 2 204 225 214 225 7 5 22 218 225 228 250 15 42 0 25 2 5 5 15...

Page 75: ...125 123 125 20 27 104 125 109 125 7 5 11 115 125 120 125 10 14 118 125 123 150 15 21 125 150 130 150 25 34 113 125 118 150 7 5 11 124 150 129 150 10 14 127 150 132 150 15 21 134 150 139 150 460 3 60 4 14 7 130 23 2 9 E8 80 2 92 5 2 10 14 110 125 115 125 7 5 11 121 125 126 150 10 14 124 125 129 150 15 21 132 150 137 150 15 21 118 125 123 125 7 5 11 129 150 134 150 10 14 132 150 137 150 15 21 139 15...

Page 76: ...72 130 23 2 9 E4 40 1 46 5 2 10 14 0 25 1 2 5 7 6 105 110 110 110 7 5 11 111 125 117 125 15 21 0 25 1 2 5 7 6 113 125 118 125 7 5 11 120 125 125 125 20 27 0 25 1 2 5 7 6 121 125 126 150 7 5 11 127 150 133 150 25 34 0 25 1 2 5 7 6 129 150 135 150 7 5 11 136 150 141 175 460 3 60 4 14 72 130 23 2 9 E8 80 2 92 5 2 10 14 0 25 1 2 5 7 6 126 150 131 150 7 5 11 133 150 138 150 15 21 0 25 1 2 5 7 6 135 150...

Page 77: ... 82 100 86 100 7 5 9 91 110 95 110 10 11 93 110 97 110 15 17 99 110 103 125 25 27 88 110 92 110 7 5 9 97 110 101 125 10 11 99 125 103 125 15 17 105 125 109 125 575 3 60 4 11 3 93 7 17 6 2 2 E8 80 2 80 4 2 10 11 94 100 98 100 7 5 9 103 110 107 110 10 11 105 110 109 110 15 17 112 125 116 125 15 17 101 110 105 110 7 5 9 110 125 114 125 10 11 112 125 116 125 15 17 118 125 122 125 20 22 108 125 112 125...

Page 78: ...93 7 17 6 2 2 E4 40 1 40 4 2 10 11 0 25 0 95 5 6 1 81 90 85 90 7 5 9 87 90 91 100 15 17 0 25 0 95 5 6 1 88 100 93 110 7 5 9 94 110 98 110 20 22 0 25 0 95 5 6 1 95 110 99 110 7 5 9 100 110 105 125 25 27 0 25 0 95 5 6 1 101 125 105 125 7 5 9 107 125 111 125 575 3 60 4 11 3 93 7 17 6 2 2 E8 80 2 80 4 2 10 11 0 25 0 95 5 6 1 107 110 111 125 7 5 9 113 125 117 125 15 17 0 25 0 95 5 6 1 114 125 119 125 7...

Page 79: ...ilding A trap must be installed to prevent this condensate water build up see Figures 19 and 20 LD14185 FIGURE 25 RECCOMMENDED DRAIN PIPING Condensate Drain Trap For Draw through applications install a trapped condensate drain line at unit drain connection see Figure 25 according to all governing codes H dimension must be at least 1 2 inch greater than design Total Static Pressure TSP of fan The t...

Page 80: ...ovided for hard wiring an external device such as a central time clock a thermostat with scheduling or BAS system or a manual switch Contact Closure Occupied Contacts Open Unoccupied Note that 24V R terminal 16 of the terminal block CTB3 must be used as the 24VAC source for switching the contact to the Unit Controller Occupied Unoccupied input Use of any power source external to the controller wil...

Page 81: ...urn air and mix it with the air off the evaporator coil The purpose of the damper is to temper the supply air to the under floor system by mixing return air with the air off the evaporator coil After the system is initialized the mixed air damper modulates based on the ratio of the difference between the mixed air temperature minus the supply air temperature compared to the return air temperature ...

Page 82: ...ed wire where shown 5 External power supply required terminal is 40 VA 2 All wiring is Class 2 low voltage Wiring Notes Use Shielded Wire Use Shielded Wire Closed Smoke Purge Closed Shutdown Open Unoccupied Closed Occupied cause equipment damage power source external of the unit may sourced from the unit Use of another Note 24VAC switch voltage must be Relay Output VAV Heat Smoke Purge Input Shutd...

Page 83: ...he disconnect to the power entry location in the baserail should be routed so that it does not interfere with the doors of the unit access panels Use care to avoid damage when drill ing holes for the disconnect mount ing Since not all local codes allow mount ing a disconnect on the unit please confirm compliance with local code before mounting a disconnect on the unit Electrical wiring must be siz...

Page 84: ...Building Pressure Transducer Plastic tubing 3 16 ID must be run from the high pressure tap of the building static pressure transducer to a static pressure tap field supplied located in the conditioned space The tap should be placed in a location where over pressurization will cause a problem for example in the lobby area where excessive pressure will cause the doors to remain open The tap should n...

Page 85: ...d should be installed so they are sufficiently loose Duct runs and transitions must be made carefully to hold friction loss to a minimum Avoid short turns and duct elbows should contain splitters or turning vanes Duct work connected to the fan discharge should run in a straight line for at least two equivalent outlet diameters Never deadhead the discharge into the flat surface of a plenum Aclosed ...

Page 86: ...equire ment specifying a minimum diameter for gas piping All units require a 1 1 4 inch pipe connection at the entrance fitting Line should not be sized smaller than the entrance fitting size Gas Connection The gas supply line should be routed within the space and penetrate the roof at the gas inlet connection of the unit Refer to Figures 6through 9 to locate the access opening Typical supply pipi...

Page 87: ...e doors to assure proper operation and compliance with CSA ETL safety certification Refer to Figure 29 The products of combustion are discharged horizontally through hooded openings in the gas heat access doors Installation refer to Figure 29 1 Remove the shipping covers that are attached to the heat section door covering the flue outlets 2 Locate the flue which is shipped in the evaporator sectio...

Page 88: ... systems DO NOT exceed 40 gallons per minute flow rate In two row hot water coil systems DO NOT exceed 80 gallons per minute flow rate Condensate will freeze on the control valve and piping if they are not prop erly insulated Insulating the control valve and piping is the responsibility of the installing party Piping Connections The hot water piping must enter the unit through the floor of the hea...

Page 89: ...properly insulated and conform to all local and national codes There are no provisions in the coil or control sequence to prevent freezing of condensate The control valve piping and field installed wiring connections are particularly vulnerable because they are installed in the vestibule outside of the conditioned air stream The installing party will be responsible for properly insulating and inst...

Page 90: ... as added protection for condensate leakage into the space the piping access holes should be sealed with a heat resistant mastic The following figure illustrates the location of the compartment and piping connections Piping access holes should be sealed with a heat resistant mastic to prevent damage to equipment FIGURE 31 HOT WATER PIPING CROSS SECTION LD14189 DO NOT use tin based solder Braz ing ...

Page 91: ...ITIAL START NO POWER Unit Checks 1 Inspect the unit for shipping or installation dam age 2 Visually check for refrigerant piping leaks 3 The compressor oil level should be maintained so that an oil level is visible in the sight glass The oil level can only be tested when the compressor is running in stabilized conditions guaranteeing that there is no liquid refrigerant in the lower shell of the co...

Page 92: ... no liquid refrigerant in the lower shell of the compressor When the compressor is running in stabilized conditions the oil level must be between 1 2 and 3 4 in the oil sight glass Note at shutdown the oil level can fall to the bottom limit of the oil sight glass 12 Verify proper belt tension of supply fan exhaust fan or return fan refer to Maintenance section of manual Belts must be checked after...

Page 93: ...cross a wet coil under field conditions would be inaccurate To assure a dry coil the compressors should be de activated while the test is being run 4 Knowing the pressure drop across a dry coil the actual CFM through the unit with clean 2 inch filters can be determined from the curve in Figure 56 and 57 De energize the compressors before taking any test measurements to assure a dry evaporator coil...

Page 94: ...nd an 856 RPM drive but the unit is only delivering 11 000 CFM per Figure 15 Use the equation to determine the required PD for the new motor sheave 12 000 CFM 11 000 CFM X 6 7 7 3091 inch Use the 30 ton table to select a Browning 2B5V74 which will increase the speed of the unit s drive and its supply air CFM to 111 9 Thus select the 7 5 PD at 112 increase over standard New drive speed 1 1194 X 856...

Page 95: ...NSTANT VOLUME VAV UNITS CLASS 1 2 FC FAN 10 HP MOTOR 617 RPM DRIVE 15 HP MOTOR 743 RPM DRIVE 20 HP MOTOR 856 RPM DRIVE 25 HP MOTOR 907 RPM DRIVE RPM CFM REQ D PD BROWNING 2B5V_ _ RPM CFM REQ D PD BROWNING 2B5V_ _ RPM CFM REQ D PD BROWNING 2B5V_ _ RPM CFM REQ D PD BROWNING 2B5V_ _ 91 8 4 5 42 86 4 5 1 48 82 1 5 5 54 86 3 6 1 60 95 9 4 7 44 89 8 5 3 50 85 1 5 7 56 89 0 6 3 62 100 STD 4 91 46 93 2 5 ...

Page 96: ...R 758 RPM DRIVE 7 5 HP MOTOR 852 RPM DRIVE 10 HP MOTOR 976 RPM DRIVE RPM CFM REQ D PD BROWNING 2B5V_ _ RPM CFM REQ D PD BROWNING 2B5V_ _ RPM CFM REQ D PD BROWNING 2B5V_ _ 100 4 9 STD 1 46 92 5 1 48 93 5 9 56 104 5 1 48 96 5 3 50 97 6 1 58 109 5 3 50 100 5 5 STD 1 52 100 6 3 STD 1 60 113 5 5 52 104 5 7 54 103 6 5 62 117 5 7 54 108 5 9 56 107 6 7 64 122 5 9 56 112 6 1 58 110 6 9 66 TABLE 46 DRIVE AD...

Page 97: ...MOTOR SHEAVE 1 REQ D PD RPM DRIVE BLOWER SHEAVE 2B5V 1 REQ D PD MOTOR SHEAVE 1 REQ D PD RPM DRIVE BLOWER SHEAVE 2B5V 1 REQ D PD MOTOR SHEAVE 2B5V 1 REQ D PD FC CL1 502 136 13 6 2TB38 3 8 502 2B5V136 13 6 2TB38 3 8 NO OPTION NO OPTION FC CL2 502 136 13 6 2TB38 3 8 502 2B5V136 13 6 2TB38 3 8 502 136 13 6 2TB38 3 8 538 154 15 4 46 4 6 AF 1240 90 9 0 2B5V62 6 2 1240 2B5V90 9 0 2B5V62 6 2 1240 90 9 0 2...

Page 98: ...from the factory with Refrigerant R 410A Table 41 is a Temperature Pressure chart for R 410A Subcooling R 410A When the refrigerant charge is correct there will be no vapor in the liquid sight glass with the system operating under full load conditions The subcooling temperature of each system can be calculated by recording the temperature of the liquid line at the outlet of the condenser and subtr...

Page 99: ... 76 46 2 225 78 48 0 235 80 50 1 245 83 52 3 255 85 54 4 265 88 56 6 275 90 58 7 285 92 60 8 295 95 62 10 305 97 64 11 325 101 66 13 355 108 68 14 375 112 70 15 405 118 72 16 500 134 74 17 600 149 76 19 700 159 Leak Checking Leak check compressors fittings and piping to assure no leaks Verify the evaporator distributor tubes do not have bare copper touching each other or are against a sheet metal ...

Page 100: ...ld be checked with all gas appliances in the building at full fire At no time should the standby gas pressure exceed 13 inches nor the operating pressure drop below 6 inches If gas pressure is outside these limits contact the local gas utility for corrective action MANIFOLD GAS PRESSURE ADJUSTMENT Small adjustments to the gas flow may be made by turning the pressure regulator adjusting screw on th...

Page 101: ...lator setting replace the orifice spuds with spuds of the proper size To find the BTU input multiply the number of cubic feet of gas consumed per hour by the BTU content of the gas in your particular locality contact your gas company for this information it varies widely from city to city TABLE 51 GAS RATE CUBIC FEET PER HOUR SECONDS FOR ONE REV SIZE OF TEST DIAL 1 2 CU FT 1 CU FT 2 900 1800 4 450...

Page 102: ...s the coil TABLE 54 STATIC RESISTANCE STEAM COIL 25 30 TON CFM 6000 8000 10000 12000 15000 AIR PRESSURE DROP 0 11 0 18 0 26 0 36 0 54 TABLE 53 STEAM COIL 1 ROW 40 TON CFM CAPACITY MBH AT STEAM PRESSURE PSI 2 6 10 15 8000 221 1 236 9 250 4 265 0 11000 252 9 271 0 286 4 303 1 14000 278 2 298 0 315 0 333 4 17000 299 4 320 7 339 0 358 8 20000 317 6 340 2 359 6 380 6 1 Based on 60 F entering air temper...

Page 103: ...7 8 173 6 209 5 245 6 15000 150 189 228 2 267 8 30 6000 107 6 135 162 5 190 1 8000 122 8 154 3 185 8 217 5 10000 135 5 170 3 205 1 240 2 12000 146 4 184 221 8 259 7 15000 160 3 201 6 243 284 8 40 6000 110 1 138 166 194 1 8000 126 1 158 2 190 5 222 8 10000 139 6 175 2 210 9 246 8 12000 151 2 189 8 228 5 267 5 15000 166 1 208 6 251 3 294 1 1 Based on 60 F entering air temperature 2 00 maximum pressu...

Page 104: ...0 186 3 234 2 282 3 330 6 1 Based on 60 F entering air temperature 2 00 maximum pressure drop across the hot water coil TABLE 60 HOT WATER COIL 2 ROW 25 30 TON 1 GPM CFM CAPACITY MBH AT ENTERING WATER TEMPERATURE 140 F 160 F 180 F 200 F 20 6000 177 5 223 8 270 4 317 3 8000 203 8 257 2 311 1 365 5 10000 224 8 284 1 343 9 404 2 12000 242 2 306 4 371 1 436 4 15000 263 6 333 8 404 6 476 1 40 6000 198 ...

Page 105: ...ROP 1 ROW 0 07 0 11 0 16 0 32 AIR PRESSURE DROP 2 ROW 0 14 0 23 0 33 0 65 TABLE 64 STATIC RESISTANCE HOT WATER COIL 40 TON CFM 80000 11000 14000 20000 AIR PRESSURE DROP 1 ROW 0 11 0 19 0 29 0 52 AIR PRESSURE DROP 2 ROW 0 23 0 39 0 58 1 06 NOTE Water pressure drop numbers are based on 60 F entering air temperature 2 00 maximum air pressure drop across the hot water coil s ARI certified ratings at c...

Page 106: ... 0 0 2 3 0 0 6 0 0 0 7 0 0 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 F L O W R A T E C F M CAPACITY MBH 1 4 0 F 1 6 0 F 1 8 0 F 2 0 0 F 9 0 0 1 0 0 0 1 1 0 0 1 2 0 0 1 3 0 0 1 4 0 0 1 5 0 0 1 6 0 0 1 7 0 0 1 8 0 0 1 9 0 0 2 0 0 0 2 1 0 0 2 2 0 0 2 3 0 0 2 4 0 0 2 5 0 0 2 6 0 0 2 7 0 0 6 0 0 0 7 0 0 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 ...

Page 107: ... 4 0 0 2 5 0 0 2 6 0 0 2 7 0 0 2 8 0 0 2 9 0 0 6 0 0 0 7 0 0 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 F L O W R A T E C F M CAPACITY MBH 1 4 0 F 1 6 0 F 1 8 0 F 2 0 0 F 180 0 200 0 220 0 240 0 260 0 280 0 300 0 320 0 340 0 360 0 380 0 400 0 420 0 440 0 460 0 480 0 500 0 520 0 540 0 560 0 580 0 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 FLO W R AT E...

Page 108: ...610 0 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 F L O W R AT E C F M CAPACITY MBH 140 F 160 F 180 F 200 F 2 0 0 0 2 2 0 0 2 4 0 0 2 6 0 0 2 8 0 0 3 0 0 0 3 2 0 0 3 4 0 0 3 6 0 0 3 8 0 0 4 0 0 0 4 2 0 0 4 4 0 0 4 6 0 0 4 8 0 0 5 0 0 0 5 2 0 0 5 4 0 0 5 6 0 0 5 8 0 0 6 0 0 0 6 2 0 0 6 4 0 0 6 0 0 0 7 0 0 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 F L ...

Page 109: ...14000 15000 16000 17000 18000 19000 20000 F LO W R AT E C FM CAPACITY MBH 140 F 160 F 180 F 200 F 1 0 0 0 1 1 0 0 1 2 0 0 1 3 0 0 1 4 0 0 1 5 0 0 1 6 0 0 1 7 0 0 1 8 0 0 1 9 0 0 2 0 0 0 2 1 0 0 2 2 0 0 2 3 0 0 2 4 0 0 2 5 0 0 2 6 0 0 2 7 0 0 2 8 0 0 2 9 0 0 3 0 0 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 1 6 0 0 0 1 7 0 0 0 1 8 0 0 0 1 9 0 0 0 2 0 0 0 0 F L O W ...

Page 110: ...000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 FLOW RATE CFM CAPACITY MBH 140 F 160 F 180 F 200 F 1 2 0 0 1 3 0 0 1 4 0 0 1 5 0 0 1 6 0 0 1 7 0 0 1 8 0 0 1 9 0 0 2 0 0 0 2 1 0 0 2 2 0 0 2 3 0 0 2 4 0 0 2 5 0 0 2 6 0 0 2 7 0 0 2 8 0 0 2 9 0 0 3 0 0 0 3 1 0 0 3 2 0 0 3 3 0 0 3 4 0 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 1 6 0 0 0 1 7 0 0 0 1 8 0...

Page 111: ...0 510 0 530 0 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 FLO W R AT E C FM CAPACITY MBH 140 F 160 F 180 F 200 F 210 0 230 0 250 0 270 0 290 0 310 0 330 0 350 0 370 0 390 0 410 0 430 0 450 0 470 0 490 0 510 0 530 0 550 0 570 0 590 0 610 0 630 0 650 0 8000 9000 10000 11000 12000 13000 14000 15000 16000 1 7000 18000 19000 20000 F L O W R A T E C F M CAPACITY MBH 140 F...

Page 112: ... 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 1 6 0 0 0 1 7 0 0 0 1 8 0 0 0 1 9 0 0 0 2 0 0 0 0 F L O W R A T E C F M CAPACITY MBH 1 4 0 F 1 6 0 F 1 8 0 F 2 0 0 F 2 3 0 0 2 5 0 0 2 7 0 0 2 9 0 0 3 1 0 0 3 3 0 0 3 5 0 0 3 7 0 0 3 9 0 0 4 1 0 0 4 3 0 0 4 5 0 0 4 7 0 0 4 9 0 0 5 1 0 0 5 3 0 0 5 5 0 0 5 7 0 0 5 9 0 0 6 1 0 0 6 3 0 0 6 5 0 0 6 7 0 0 6 9 0 0 7 1 0 0 7 3 0 0 8 0 0 0 9 0 0 0 1 0 0 ...

Page 113: ...10000 11000 12000 130 00 14000 15000 F L O W R AT E C F M CAPACITY MBH 2 psi 6 psi 10 psi 15 psi 2 1 0 2 2 0 2 3 0 2 4 0 2 5 0 2 6 0 2 7 0 2 8 0 2 9 0 3 0 0 3 1 0 3 2 0 3 3 0 3 4 0 3 5 0 3 6 0 3 7 0 3 8 0 3 9 0 8 0 0 0 9 0 0 0 1 0 0 0 0 1 1 0 0 0 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 1 6 0 0 0 1 7 0 0 0 1 8 0 0 0 1 9 0 0 0 2 0 0 0 0 F L O W R A T E C F M CAPACITY MBH 2 p s i 6 p s i 1 0 p s i 1 ...

Page 114: ...4 in the oil sight glass Note at shutdown the oil level can fall to the bottom limit of the oil sight glass Oil Analysis Use Johnson Controls Type T POE oil clear for units charged with R 410A refrigerant The type of refrigerant and amount per system is listed on the unit rating plate A change in the oil color or odor may be an indication of contaminates in the refrigeration system If this occurs ...

Page 115: ...INCHES OPERATING SPEED RPM 500 1000 1500 2000 RELUBRICATION CYCLE MONTHS 1 1 16 1 7 16 6 6 6 6 1 1 2 1 3 4 6 6 6 4 1 7 8 2 3 16 6 6 4 4 2 1 4 3 6 4 4 2 Belt Tension The tension on the belt should be adjusted as shown in Figure 50 and Table 53 If unit is equipped with power exhaust fans or return air fan check belt ten sion and adjust as necessary Procedure for Adjusting Belt Tension 1 Loosen four ...

Page 116: ...will touch at all points as indicated in Figure 51 Rotating the sheaves will determine if the sheave is wobbly or the drive shaft is bent Alignment error must be corrected to avoid bearing and belt failure FIGURE 51 SHEAVE ALIGNMENT LD07634 CORD TOUCHING SHEAVES AT POINTS INDICATED BY ARROWS CORD TIED TO SHAFT Belts New belts should be rechecked after 24 hours of operation On multiple belt adjusta...

Page 117: ...lue Passages and Heating Elements With proper combustion adjustment the heating element of a gas fired furnace will seldom need cleaning If the element should become sooted it can be cleaned as follows 1 Remove the burner assembly as outlined in Burner Instructions 2 Remove the screws holding the top of the flue collector box Carefully remove the top of the flue collector box The draft wheel housi...

Page 118: ...ection until the set screw marks on the shaft are fully exposed File the marks completely smooth Drive the shaft in the opposite direction and file smooth the set screw marks Con tinue to clean the shaft of all dirt and residuals 7 To remove the key use a rubber mallet or brass bar to drive the shaft and wheel in one direction Drive the key in the opposite direction using a nail set or smaller siz...

Page 119: ...al placed in the bearing Prior to installing the bearing on the shaft it should be worked around in the housing to make sure that self alignment will be obtained where the bearing is installed After the shaft journal has been inspected for cleanliness metal chips or burrs the bearing is slipped not forced onto the shaft Forcing the bearing onto the shaft by the use of flange pillow block or outer ...

Page 120: ...ded in the collar The self locking collar is placed on the shaft with its cam adjacent to the cam on the end of the bearing s wide inner ring In this position with collar and bearing cams disengaged the collar s bore is concentric with that of the bearing s inner ring The wide inner ring is loose on the shaft By turning the collar in the direction of normal shaft rotation the eccentric recessed ca...

Page 121: ... 1435 92 0 119 6 Torquing of Setscrews 1 Torque screw A to 1 2 recommended torque 2 Torque screw B to full min recommended value 3 Torque screw A to full recommended value After proper installation of the bearing s run the unit for 10 to 15 minutes Shut the unit down and lock it out Check for proper engagement of locking collar and tightness of set screw s When replacing split bearings refer to ma...

Page 122: ...5 F 85 F 75 F 65 F Maintenance JOHNSON CONTROLS 5276178 JIM C 0118 FIGURE 59 30 TON CHARGING CURVE 30 TON CHARGING CURVE DISCHARGE PRESSURE PSIG 30 TON CHARGING CURVE SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG 550 500 450 400 350 300 250 200 75 100 125 150 175 FIGURE 58 25 TON CHARGING CURVE 30 TON CHARGING CURVE DISCHARGE PRESSURE PSIG 25 TON CHARGING CURVE SUCTION PRESSURE PSIG DISCHARGE PRES...

Page 123: ...OIL VS SUPPLY AIR CFM 25 TON DISCHARGE PRESSURE PSIG 40 TON CHARGING CURVE SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG 550 500 450 400 350 300 250 200 75 100 125 150 175 LD14106 PRESSURE DROP ACROSS A DRY EVAPORATOR COIL 25T 0 0 1 0 2 0 3 0 4 0 5 0 6 0 1 2 3 4 5 6 7 8 9 10 11 12 13 NOMINAL CFM THOUSANDS PRESSURE DROP in wg PRESSURE DROP ACROSS A DRY EVAPORATOR COIL 25T PRESSURE DROP in wg 0 6 0 ...

Page 124: ... COIL 30T PRESSURE DROP in wg 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 LD14108 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NOMINAL CFM THOUSANDS L I O C R O T A R O P A V E Y R D A S S O R C A P O R D E R U S S E R P T 0 4 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 0 S D N A S U O H T M F C L A N I M O N PRESSURE DROP in wg PRESSURE DROP ACROSS A DRY EVAPORA...

Page 125: ...rging cylinders and recovery equipment must be dedicated for use on R 410A systems only Manifold sets must be at least 700 psig high side and 180 psig low side with 550 psig retard All hoses must have a service pressure rating of 800 psig Leak detectors must be designed to detect HFC refrigerants Systems must be charged with liquid refrigerant Use a commercial type metering device in the manifold ...

Page 126: ...ING OCC COOLING LOW OCC COOLING HIGH OCC COOLING W BYP OCC COOLING W O BYP OCCUPIED HEATING OCC HEATING LOW OCC HEATING HIGH OCCUPIED STANDBY UNOCCUPIED COOLING UNOC COOLING LOW UNOC COOLING HIGH UNOCCUPIED HEATING UNOC HEATING LOW UNOC HEATING HIGH UNOCCUPIED STANDBY COMFORT VENT COOLING COMFORT VENT HEATING MORNING WARM UP UNDER FLOOR TEMP OVERRIDE The CURRENT OPER MODE can be viewed at the STAT...

Page 127: ...key HEATING subsection UNOCC ZONE HEATING SETPOINT SETPOINTS key HEATING subsection Y1 LOW COOL Y2 HIGH COOL W1 LOW HEAT W2 HIGH HEAT CURRENT OPER MODE UNIT MODE ON OFF OFF OFF OCCUPIED OCCUPIED COOLING LOW ON OFF ON OFF OFF OCCUPIED OCCUPIED COOLING HIGH OFF OFF ON OFF OCCUPIED OCCUPIED HEATING LOW OFF OFF ON OFF ON OCCUPIED OCCUPIED HEATING HIGH OFF OFF OFF OFF OCCUPIED OCCUPIED STANDBY SEE ALSO...

Page 128: ...l to or LESS than the RAT HEATING SETPOINT minus 0 5 F the Unit Controller will place the unit in the OCCUPIED HEATING mode The unit will remain in the OCCUPIED HEATING mode until the RETURN AIR TEMP is equal to or greater than the RAT HEATING SETPOINT plus 0 5 F Unoccupied Cooling In the UNOCCUPIED COOLING mode the Unit Controllerwillmonitorthe ZONE TEMP andcompare ittothe UNOCC ZONE COOLING SETP...

Page 129: ...IGH or EVAP LEAVING AIR TEMP LOW set points The EVAP LEAVING AIR TEMP HIGH and EVAP LEAVING AIR TEMP LOW set points are set through the SET POINT key COOLING subsection of the User Interface ACTIVE SET POINT DETERMINATION Constant Volume On a Constant Volume unit the Control Method Staged or Zone does not have a direct effect on the control of the compressor and heating stages Instead the input fr...

Page 130: ...the SUPPLYAIRTEMPACTIVESP is determined by the difference between the ZONE TEMP and the appropriate zone set point Table 61 shows the parameters that are used to determine the SUPPLY AIR TEMP ACTIVE SP Where TOC ZONETEMP OCCZONECOOLING SETPOINT TOH ZONETEMP OCCZONEHEATING SETPOINT TUC ZONETEMP UNOCCZONECOOL ING SETPOINT TUH ZONE TEMP UNOCC ZONE HEAT ING SETPOINT Variable Air Volume The SUPPLY AIR ...

Page 131: ... TEMP andsetsthe SUPPLYAIRTEMPACTIVESP to a value between the SAT HIGH SETPOINT and the SAT LOW SETPOINT If the OUTSIDE AIR TEMP is equal to or less than the OAT SETPOINT FOR HIGH SAT the SUPPLY AIR TEMP ACTIVE SP isthe SATHIGH SETPOINT Ifthe OUTSIDE AIR TEMP is equal to or greater than the OAT SETPOINT FOR LOW SAT the ACTIVE SAT SP is the SAT LOW SETPOINT When the OUTSIDE AIR TEMP is between the ...

Page 132: ...PEED command and set the SUPPLY AIR TEMP ACTIVE SP to a value between the SAT HIGH SETPOINT and the SAT LOW SETPOINT If the SUPPLY FAN VFD SPEED is equal to or greater than the FAN SPEED SETP FOR LOW SAT the SUPPLY AIR TEMP ACTIVE SP shall be the SAT LOW SETPOINT If the SUPPLY FAN VFD SPEED is equal to or less than the FAN SPEED SETP FOR HIGH SAT the SUPPLY AIR TEMP ACTIVE SP shall be the SAT HIGH...

Page 133: ...hen the Unit Controller enters an active cooling mode the Unit Controller sets the COOLING CONTROL OFFSET to2 0 F TheUnit Controller compares the current SUPPLY AIR TEMP CURRENT tothe SUPPLYAIRTEMPACTIVESP plus or minus the COOLING CONTROL OFFSET If the SUPPLY AIR TEMP CURRENT is greater than the SUPPLY AIR TEMP ACTIVE SP plus the COOLING CONTROL OFFSET and all the compressors are not ON the Unit ...

Page 134: ...ROL OFFSET COOLING CONTROL OFFSET SAT change 1 F 2 FORMULA 1 If a new COOLING CONTROL OFFSET is calculated it is rounded up to the next half degree Aftera COOLINGCONTROLOFFSET calculationis made the Unit Controller initiates a 45 minute Cooling Control Offset Timer If no compressor is turned ON or OFF before the Cooling Control Offset Timer has expired the COOLING CONTROL OFFSET will be reset to 2...

Page 135: ...e Unit Controller It then examines the current state for 10 seconds If the input does not go to a high state during this time frame the Unit Controller will set a SUPPLY FAN LOCKOUT and shut down all unit system operation Variable Air Volume VAV The Supply Fan will be turned ON if the Supply Fan has been OFF for at least 60 seconds and one of the following conditions apply The FAN G digital input ...

Page 136: ...NTS key SUPPLY SYSTEMS sub section DUCT STATIC RESET HIGH SETP SETPOINTS key SUPPLY SYSTEMS subsec tion The DUCT PRESS TRANSDUCER SPAN can be set for 1 25 WC 2 50 WC or 5 00 WC based on the duct static pressure transducer setting The Duct Static Limit can be varied through the DUCT STATIC PRES RESET a 0 0 to 5 0 analog input to the Unit Controller When the DUCT STATIC PRES RESET analoginputis0 0th...

Page 137: ...NEXT STAGE TO ENABLE TO EITHER 1 OR 2 WHICH EVER COMPRESSOR HAS THE SMALLEST NUMBER OF STARTS STAGE 1 TO 2 IF COMPRESSOR 3 READY TO RUN COMPRESSOR 4 READY TO RUN ARE ALL TRUE THE UNIT CONTROL WILL SET NEXT STAGE TO ENABLE TO EITHER 3 OR 4 WHICH EVER COMPRESSOR HAS THE SMALLEST NUMBER OF STARTS STAGE 2 TO 3 THE UNIT CONTROL WILL SET NEXT STAGE TO ENABLE TO THE COMPRESSOR REMAINING FROM THE STAGE 0 ...

Page 138: ...will be controlled to maintain a minimum discharge pressure of 270 PSIG ECONOMIZER Economizer is used in cooling mode only As soon as the UNIT MODE switches to OCCUPIED COOLING or UNOCCUPIED COOLING and the conditions are within the programmed guidelines for economizer operation the Unit Controller will attempt to use outdoor air to lower the supply air temperature to the ACTIVE SAT SETPOINT The f...

Page 139: ...essthanorequal to the SUPPLY AIR TEMP ACTIVE SP plus 8 F The OUTSIDE AIR ENTHALPY is less than or equal to the RETURN AIR ENTHALPY 1 BTU LB The current UNIT MODE is OCCUPIED COOLING or UNOCCUPIED COOLING Once the ECONO SYS STATUS is NORMAL ACTIVE the ECONO SYS STATUS is set to NORMAL INACTIVE if any of the following are met The OUTSIDE AIR TEMP is greater than or equal to the SUPPLY AIR TEMP ACTIV...

Page 140: ...ill be accumulated over the lifetime of the compressor The number symbol will vary to match the compressor number the data is being recorded for 1A 1 1B 2 2A 3 etc This data can be view under the OPERATING HOURS START COUNTER key of the User Interface Compressor Run Time while the compressor is in the ON state the COMPRESSOR RUN TIME shall be incremented once per minute The value will only be accu...

Page 141: ...Controller turns off the active compressors for that system The compressor system will be made active again when the safety circuit is reestablished However the event will be stored in the History buffer During the time the safety circuit is open the User Interface will display the following messages STATUS screen COMPR SYS STATUS SAFETY TRIP COMPRESSOR SYSTEM screen SAFETY TRIP The HISTORY buffer...

Page 142: ...E SP minus 5 0 F for 5 minutes The stage heat will stage up and down based on the following criteria The heat section will stage up if the SUPPLY AIR TEMP islessthanorequaltothe SUPPLY AIR TEMP ACTIVE SP minus 5 0 F The heat section will stage down if the SUP PLY AIR TEMP is more than or equal to the SUPPLY AIR TEMP ACTIVE SP plus 2 x the HEATING CONTROL OFFSET minus5 0 F If 2 x the HEATING CONTRO...

Page 143: ...MP can never be set lower than 0 0 F The addition of a condenser fan VFD is programmed through LOW AMBIENT PKG which is under the OPTION key COMP SYSTEM 01 or 02 subsection of the User Interface The addition of discharge pressure transducers is programmed through PRESS TRANS PKG which is under the OPTION key COMP SYSTEM 01 or 02 subsection of the User Interface Both PRESS TRANS PKG and a LOW AMBIE...

Page 144: ...D11300B operation LOW AMBIENT PKG isturnedONforthe refrigerant system In addition the unit will have a VFD installed to control the speed of the first condenser fan The VFD is located in the blower compartment above the blower motor Operation and Pressure Control Range The VFD controls the speed of the fan based on a discharge pressure setpoint and a differential range When discharge pressure reac...

Page 145: ...he FLEX EVAP TEMP and the FLEX EVAP TEMPACTIVE SP islessthanor equal to the COOLING CONTROL OFFSET divided by 2 closing and opening of the bypass damper is allowed RETURN AIR BYPASS ACTIVE SP MX SUPPLY AIR TEMP FLEX EVAP TEMP ACTIVE SP RETURN AIR TEMP FLEX EVAP TEMP ACTIVE SP x 100 FORMULA 1 x 100 RETURN AIR BYPASS CURRENT MX SUPPLY AIR TEMP FLEX EVAP TEMP RETURN AIR TEMP FLEX EVAP TEMP FORMULA 2 ...

Page 146: ...ING SETPOINT must be programmed for CONSTANT VOLUME units through the SETPOINTS key HEATING subsec tion of the User Interface 2ND STAGE HEATING SETPOINT must be programmed for CONSTANT VOLUME units through the SETPOINTS key HEATING subsec tion of the User Interface HEATING SAT must be programmed forVari able Air Volume and FlexSys units through the SETPOINTS key HEATING subsection of the User Inte...

Page 147: ...ED GAS HEAT Programmed Data The following parameters programmed into the Unit Control HEATING SYSTEM must be set to USER EN ABLE through the PROGRAM key HEATING subsection of the User Interface HEATING SYSTEM TYPE must be set to STAGED GAS through the OPTIONS key HEATING subsection of the User Interface GAS HEAT CAPACITY must be set to the rating plate value through the OPTIONS key HEATING subsect...

Page 148: ...2 times the HEATING CONTROL OFFSET is more than orequaltothe HEATLIMITTEMPERATURE the Unit Control will prevent any heat stages from being energized During the initial call the Unit Control uses the following formula to determine how many stages of gas heat to bring ON After which the Unit Control uses the procedure above for staging ON or OFF additional capacity N SAT SATSP 2 x HCO Where N Number...

Page 149: ...at sec tion pressure switch closes 4 The ignition control waits 30 seconds and then starts a high voltage spark for 10 seconds This allows for a prepurge of the heat exchanger 5 At the same time the ignition control sends a 24V signal to the solenoid of the gas valve 6 The ignition control then checks for a flame rectifi cation signal if the signal is present for 15 seconds an analog signal is sen...

Page 150: ...ough the OPTION key HEATING subsection of the User Inter face HW VALVE ACTION must be set to DI RECT OR REVERSE throughthePROGRAM key HEATING subsection of the User Inter face 1ST STAGE HEATING SETPOINT must be programmed for CONSTANT VOLUME units through the SETPOINTS key HEATING subsec tion of the User Interface 2ND STAGE HEATING SETPOINT must be programmed for CONSTANT VOLUME units through the ...

Page 151: ...M FRZ STATUS through Terminal Block TB7 Terminal 14 If 24V is present closed contact for 10 seconds a voltage signal will be sent to the modulating valve to open to 100 or 0 if the valve Action is programmed for REVERSE The Primary Control will start a 5 minute Freeze Trip Timer The STATUS screen of the User Interface will display SENSOR MISC STATUS SAFETY TRIP and the HISTORYscreen will show WRN ...

Page 152: ...PT TIME for the next day In order to useAdaptive Morning Warm Up the Primary Control must be configured as follows The OCCUPANCY SCHEDULE mustbepro grammed for the Occupied Unoccupied start and stop times This is done through the SCHEDULE key of the User Interface The OCCUPANCY SCHEDULE must be USER ENABLED This is done through the SCHEDULE key of the User Interface MORNING WARM UP must be set to ...

Page 153: ...p stopped TEMP1 RETURN AIR TEMP when the Warm Up started Set Point RAT HEATING SETPOINT If the time from when heat is started and Morning Warm Up is stopped is less than 10 minutes the Unit Control will use the daily warm up time for the previous day and will not approximate a warm up time If the approximate daily warm up time exceeds the MORNING WARM UP MAX TIME the daily warm up time will be set...

Page 154: ...the User Interface ECONO OUPUT FOR FAN STOP must be set using the SETPOINTS key EXHAUST subsection of the User Interface Operation This option is only available on Constant Volume units The fixed speed motor is turned ON and OFF based on the position of the outside air damper The Exhaust Motor is turned ON when the damper position is more than or equal to the ECONO OUTPUT FOR FAN START setting and...

Page 155: ...nterface BUILDING PRESSURE SETPOINT must be set using the SETPOINTS key EXHAUST subsection of the User Interface EXHAUST OUTPUT FOR FAN START must be set using the SETPOINTS key EXHAUST subsection of the User Interface EXHAUST OUTPUT FOR FAN STOP must be set using the SETPOINTS key EXHASUT subsection of the User Interface Operation This option is available on all units A variable voltage analog ou...

Page 156: ...the Outdoor damper is 10 0V when the Ventilation System Status is active The analog output to the Outdoor damper is 0 0V when the Ventilation System Status is inactive The amount of outdoor air is set by adjusting the damper linkage Demand Ventilation In order to use the Demand Ventilation feature a CO2 sensor part number 025 36461 000 must be installed in the return air and be connected to termin...

Page 157: ...E PURGE The following parameters must be programmed into the Unit Controller SMOKE PURGE SEQ 1 can be set to PURGE PRESSURIZATION or EVACU ATION throughtheOPTIONSkey UNITDATA subsection of the User Interface Whenever a Smoke Purge sequence is started all normal heating and cooling functions are stopped regardless of control inputs This will occur within 2 seconds after the Smoke Purge signal is re...

Page 158: ...eration started the following will occur Stop the Supply Fan if ON Start the Return Fan if not already ON Start the Exhaust Fan if not already ON Set all Outside Air Damper Output s to 0 Set all Return Air Dampers to100 Set the Exhaust Damper Output to 100 ...

Page 159: ...159 JOHNSON CONTROLS 5276178 JIM C 0118 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 160: ...s available to access displays program parameters and initiate system commands The keypad consists of 36 keys that are divided into three categories Data Entry Navigation and Menu Selection keys A description of each of the keys is contained below Data Entry Keys The Data Entry Keys provide a means to enter values for items that support edits The keys available to support numeric input are the 0 t...

Page 161: ... key is pressed pressing any Menu Select key will bring the user to the first screen under that menu even if it is the same menu being viewed Navigation through the circular list of items can also be achieved by repeated presses of the same Menu Select key as long as no other keys are pressed For example pressing the UNIT DATA key three times will bring the user to the third screen of the UNIT DAT...

Page 162: ...STATUS NORMAL ACTIVE NORMAL INACTIVE SAFETY TRIP SAFETY FAULT SAFETY LOCKOUT DERIVED ALWAYS COMP SYS 1 STATUS NORMAL COMP A ON NORMAL COMP B ON NORMAL BOTH ON NORMAL BOTH OFF SAFETY TRIP SAFETY FAULT SAFETY LOCKOUT LOW AMB INHIBIT LOW SUCT TEMP UNL HIGH DP UNLOAD USER DISABLED DERIVED ALWAYS COMP SYS 2 STATUS NORMAL COMP A ON NORMAL COMP B ON NORMAL BOTH ON NORMAL BOTH OFF SAFETY TRIP SAFETY FAULT...

Page 163: ...C ZONE COOLING SET POINT 1 OCC ZONE HEATING SETPOINT 2 0º F 72 0º F SETOINTS UNIT DATA ZONE TEMP CURRENT 20 0º F TO 180 0º F LOOK UP TABLE UNIT TYPE EQUALS CONSTANT VOLUME OR VARIABLE AIR VOLUM UNOCC ZONE COOLING SET POINT 1 UNOCC ZONE HEATING SETPOINT 2 0º F TO 95º F 85 0º F SETOINTS UNIT DATA ZONE TEMP CURRENT 20 0º F TO 180 0º F LOOK UP TABLE UNIT TYPE EQUALS CONSTANT VOLUME OR VARIABLE AIR VOL...

Page 164: ... ZONE COOLING SETPOINT 1 OCC ZONE HEATING 2 0º F TO 85 0º F 72 0º F SETPOINTS COOLING ZONE TEMP CURRENT 20 0º F TO 180 0º F LOOK UP TABLE UNIT TYPE EQUALS CONSTANT VOLUME OR VARIABLE AIR VOLUM UNOCC ZONE COOLING SETPOINT 1 UNOCC ZONE HEATING 2 0º F TO 95 0º F 85 0º F SETPOINTS COOLING RETURN AIR TEMP CURRENT 20 0º F TO 180 0º F LOOK UP TABLE UNIT TYPE EQUALS VARIABLE AIR VOLUM OR FLEXSYS RAT COOLI...

Page 165: ...E TEMP RAT SETPOINT FOR LOW SAT 1 RAT SETPOINT FOR HIGH RAT 5 0º F TO 90 0º F 90 0º F SETPOINTS COOLING UNIT TYPE EQUALS VARIABLE AIR VOLUM AND SAT RESET METHOD EQUALS RETURN TEMP HIGH SAT 1 RAT COOLING SETPOINT TO RAT SETPOINT FOR LOW SAT 5º F 80 0º F SETPOINTS COOLING UNIT TYPE EQUALS VARIABLE AIR VOLUM AND SAT RESET METHOD EQUALS RETURN TEMP FAN SPEED SETP FOR LOW SAT 1 FAN SPEED SETP FOR HIGH ...

Page 166: ...DERIVED SUCTION TEMP 20 0º F TO 180 0º F LOOK UP TABLE THIS FEATURE IS NOT AVAILABLE ON THIS UNIT PRESSURE DISCHARGE 0 TO 320 PSIG R410A LOOK UP TABLE THIS FEATURE IS NOT AVAILABLE ON THIS UNIT SUCTION 0 TO 800 R410A LOOK UP TABLE TEMPERATURE SUCTION 1 20 0º F TO 180 0º F LOOK UP TABLE THIS FEATURE IS NOT AVAILABLE ON THIS UNIT SUPERHEAT 0 0º F TO 50 0º F DERIVED CURRENT RUN TIME COMP A HH MM SS D...

Page 167: ...IT ACTIVE SP 0 00 TO 1 00 INWC DERIVED DUCT PRESS TRANSDUCER SPAN 2 1 25 2 5 5 0 5 0 SETPOINTS SUPPLY SYSTEM UNIT TYPE EQUALS VARIABLE AIR VOLUM OR FLEXSYS DUCT STATIC RESET LOW SETP 1 0 I IN WG SPAN 0 IN WG TO DUCT STATIC RESET HIGH 1 5 IN WG SETPOINTS SUPPLY SYSTEM UNIT TYPE EQUALS VARIABLE AIR VOLUM OR FLEXSYS DUCT STATIC RESET HIGH SETP 1 DUCT STATIC RESET LOW LIMIT TO SPAN 2 5 IN WG SETPOINTS...

Page 168: ...0 0º F DERIVED ZONE TEMP CURRENT 20 0º F TO 180 0º F LOOK UP TABLE ALWAYS OCC ZONE HEATING SETPOINT 1 60º F TO OCC ZONE COOLING SETPOINT 2 0 F 68º F SETPOINTS HEATING ZONE TEMP CURRENT 20 0 F TO 180 0 F LOOK UP TABLE ALWAYS UNOCC ZONE HEATING SETPOINT 1 50º F TO UNOCC ZONE COOLING SETPOINT 2 0 F 60 0º F SETPOINTS HEATING RETURN AIR TEMP CURRENT 20 0º F TO 180 0º F LOOK UP TABLE HEAT TYPE DOES NOT ...

Page 169: ...OFF PURGE IGNITION ON SAFETY TRIP SAFETY FAULT SAFETY LOCKOUT FAULT L O DERIVED THIS FEATURE IS NOT AVAILABLEONTHISUNIT FURNACE 1 MODE OFF PURGE IGNITION ON LOW ON HIGH SAFETY TRIP SAFETY FAULT SAFETY LOCKOUT FAULT L O DERIVED HEAT TYPE EQUALS STAGED GAS FURNACE 2 MODE OFF PURGE IGNITION ON LOW ON HIGH SAFETY TRIP SAFETY FAULT SAFETY LOCKOUT FAULT L O DERIVED GAS HEAT SIZE EQUALS 750 MBH OR 1125 M...

Page 170: ... 95 0º F 85 0º F SETPOINTS HEATING HEAT TYPE DOES NOT EQUAL NONE AND UNIT TYPE EQUALS CONSTANT VOLUME 2ND STAGE HEATING SETPOINT 1 95 0º F 115 0º F 100 0º F SETPOINTS HEATING HEAT TYPE DOES NOT EQUAL NONE AND UNIT TYPE EQUALS CONSTANT VOLUME DAILY WARM UP TIME DAY 1 0 MIN TO MORNING WARM UP MAX TIME DERIVED HEAT TYPE DOES NOT EQUAL NONE AND MORN WARM UP EQUALS ENABLED DAILY WARM UP TIME DAY 2 0 MI...

Page 171: ...ER INSTALLED DOES NOT EQUAL NONE OUTSIDE AIR TEMP 20 0º F TO 180 0º F LOOK UP TABLE ECONOMIZER INSTALLED DOES NOT EQUAL NONE OUTSIDE AIR HUMIDITY 0 TO 100 LOOK UP TABLE ECONOMIZER INSTALLED EQUALS SINGLE ENTHALPY OR DUAL ENTHALPY ENTHALPY 7 2 TO 204 9 BTU LB LOOK UP TABLE ECONOMIZER INSTALLED EQUALS SINGLE ENTHALPY OR DUAL ENTHALPY RETURN AIR TEMP 20 0º F TO 180 0º F LOOK UP TABLE ECONOMIZER INSTA...

Page 172: ...OW TOTAL 0 TO DERIVED SPAN DERIVED THIS FEATURE IS NOT AVAILABLE ON THIS UNIT ACTIVE SP 0 TO DERIVED SPAN DERIVED VENTILATION DEMAND 0 100 DERIVED VENTILATION CONTROL EQUALS DEMAND CO2 LEVEL OUTSIDE 0 TO 2000 PPM LOOK UP TABLE VENTILATION CONTROL EQUALS DEMAND INSIDE 0 TO 2000 PPM LOOK UP TABLE CO2 OFFSET CURRENT 0 TO 2000 PPM DERIVED VENTILATION CONTROL EQUALS DEMAND SETPOINT 1 100 1000 PPM 500 P...

Page 173: ... X 30 SETPOINTS VENTILATION THIS FEATURE IS NOT AVAILABLE ON THIS UNIT MINIMUM OA FLOW SETPOINT 1 0 100 DERIVED SPAN X 15 SETPOINTS VENTILATION THIS FEATURE IS NOT AVAILABLE ON THIS UNIT UNIT INSTALLED ALTITUDE 1 0 99999 FT 0 FT SETPOINTS VENTILATION THIS FEATURE IS NOT AVAILABLE ON THIS UNIT VENTILATION SYSTEM 1 USER ENABLED USER DISABLED USER ENABLED PROGRAM VENTILATION DAMPER HARDWARE DOES NOT ...

Page 174: ...MODULATE DAMPER VFD FAN STATUS STOPPED RUNNING DERIVED EXHAUST DAMPER POSITION 0 0 TO 100 DERIVED POWER EXHAUST EQUALS MODULATE DAMPER VFD OR RETURN FAN W EXH EXHAUST RETURN FAN VFD 0 0 TO 100 DERIVED POWER EXHAUST EQUALS MODULATE DAMPER VFD BLDG PRESSURE CNTRL OFFSET 1 0 15 IWC TO 0 15 0 00 IWC SETPOINTS EXHAUST POWER EXHAUST EQUALS ON OFF PRESS CTRL ECONO OUTPUT FOR FAN START 1 ECONO OUTPUT FOR ...

Page 175: ...cepted use the key or the key to select the menu subsection Unit Cooling Compressor Systems Supply System Heating Economizer Ventilation Exhaust that contains the parameter you would like to change The parameters contained under each of these menu subsections and their password level is contained in Tables 69 thru 77 Then use the key and the key to navigate to the parameter you want to change Foll...

Page 176: ...display a subsequent press of the key will display the Holiday schedule This is a two part display The first reads The times may be set using the same procedure as described above for the days of the week Continue pressing the key to set the 15 holiday dates The display will read The month and the day of each holiday are entered in this format Enter 0000 to not specify a holiday The MMDD is displa...

Page 177: ... 1 DERIVED COMPRESSOR 2B OPER HRS COMPRESSOR 2B STARTS 1 DERIVED CONDENSER FAN 1A UNIT CONTROLLER DOES NOT CONTROL CONDENSER FANS CONDENSER FAN 1B CONDENSER FAN 2A CONDENSER FAN 2B EXHAUST FAN OPER HRS EXHAUST FAN STARTS 1 DERIVED POWER EXHAUST ON OFF DMPR ON OFF PRESS MODULATE DAMPER VFD SUPPLY FAN OPER HRS SUPPLY FAN STARTS 1 DERIVED RETURN FAN OPER HRS RETURN FAN STARTS 1 DERIVED THIS FEATURE I...

Page 178: ...dow When the reports finish transferring to the file select Transfer Capture Text Stop The file can then be printed from an application like Notepad or Word To use Hyper Terminal to print a report without saving it to a file Select Transfer Capture to Printer From the Unit Control panel select the report you want to print See Report Section below to select the report As the report is uploading fro...

Page 179: ... order to force the outputs the LOCAL STOP switch must be in the OFF position To force an output ON use the or key to navigate to the SERVICE AO section Then use the or key to select the output you want to force ON Press the key and then use the numeric key pad to enter the output value Press the key again to energize the output Repeat the above process in reverse to turn the forced output back to...

Page 180: ...4 7 ON OFF I O BOARD STATUS OF THE DIGITAL OUTPUT TO COMPRESSOR 3A COMPRESSOR 3B DIGITAL OUTPUT TB4 8 ON OFF I O BOARD STATUS OF THE DIGITAL OUTPUT TO COMPRESSOR 3B CONDENSER FAN 1A 1 DIGITAL OUTPUT TB4 9 ON OFF I O BOARD UNIT CONTROLLER DOES NOT CONTROL CONDENSER FANS CONDENSER FAN 1B 2 DIGITAL OUTPUT TB4 10 ON OFF I O BOARD UNIT CONTROLLER DOES NOT CONTROL CONDENSER FANS CONDENSER FAN 2A 3 DIGIT...

Page 181: ...GAS FURN 1A LOW DIGITAL OUTPUT TB3 2 ON OFF I O BOARD THIS FEATURE IS NOT AVAILABLE ON THIS UNIT MOD GAS FURN 1A HI DIGITAL OUTPUT TB3 3 ON OFF I O BOARD THIS FEATURE IS NOT AVAILABLE ON THIS UNIT MOD GAS FURN 2 LOW DIGITAL OUTPUT TB3 4 ON OFF I O BOARD THIS FEATURE IS NOT AVAILABLE ON THIS UNIT MOD GAS FURN 2 HIGH DIGITAL OUTPUT TB3 5 ON OFF I O BOARD THIS FEATURE IS NOT AVAILABLE ON THIS UNIT MO...

Page 182: ...PER POSITION ANALOG OUTPUT TB9 11 0 10VDC I O BOARD ANALOG OUTPUT TO THE FLEXSYS BYPASS DAMPER SUPPLY AIR TEMP CURRENT ANALOG INPUT J1 1 0 5 VOLTS I O BOARD ANALOG INPUT FROM THE SUPPLY OR MIXED AIR SENSOR MX SUPPLY AIR TEMP CURRENT ANALOG INPUT J1 1 0 5 VOLTS I O BOARD ANALOG INPUT FROM THE SUPPLY OR MIXED AIR SENSOR HEAT EXCHANGER TEMP ANALOG INPUT J1 2 0 5 VOLTS I O BOARD ANALOGINPUTFROMTHETEMP...

Page 183: ...FEATURE IS NOT AVAILABLE ON THIS UNIT D U C T S T A T I C PRESS CURRENT A N A L O G INPUT J6 2 0 5 VOLTS I O BOARD ANALOG INPUT FROM THE SUPPLY AIR PRESSURE TRANSDUCER B U I L D I N G P R E S S U R E CURRENT A N A L O G INPUT J6 3 0 5 VOLTS I O BOARD ANALOG INPUT FROM THE BUILDING PRESSURE TRANSDUCER OA FLOW INPUT 1 A N A L O G INPUT J6 4 0 TO 4095 A D COUNTS 1 5 VOLTS I O BOARD THIS FEATURE IS NO...

Page 184: ...CE MULTIPLEXER BOARD FURNACE 3 STATUS D I G I TA L INPUT TB01 4 ON OFF FURNACE MULTIPLEXER FURNACE 3 STATUS INPUT TO FURNACE MULTIPLEXER BOARD O C C U P A N C Y STATE D I G I TA L INPUT TB8 2 OCCUPIED UNOCCUPIED I O BOARD HARDWIRED DIGITAL INPUT TO PUT THE UNIT INTO THE OCCUPIED MODE LOCAL STOP D I G I TA L INPUT TB8 1 RUN STOP I O BOARD DIGITAL INPUT THAT TURNS THE UNIT ON AND OFF FAN G D I G I T...

Page 185: ...L INPUT FROM THE HOT WATER FREEZESTAT SMOKE PURGE 1 DIGITAL INPUT TB8 4 ON OFF I O BOARD HARDWIRED DIGITAL INPUT TO PLACE THE UNIT IS SMOKE PURGE 1 MODE SMOKE PURGE 2 DIGITAL INPUT TB8 5 ON OFF I O BOARD THIS FEATURE IS NOT AVAILABLE ON THIS UNIT SMOKE PURGE 3 DIGITAL INPUT TB8 7 ON OFF I O BOARD THIS FEATURE IS NOT AVAILABLE ON THIS UNIT CO2 LVL INSIDE BAS COMMUN PORT P1 USER DISABLE USER ENABLE ...

Page 186: ... COMMUN PORT P1 0 ALLOWS ALL COMPRESSORS TO OPERATE 1 TURNS OFF COMPRESSOR SYSTEM 1 2 TURNS OFF COMPRESSOR SYSTEM 2 3 TURNS OFF COMPRESSOR SYSTEM 3 IPU BOARD GIVES THE STATUS OF THE COMMUNICATED SYSTEM STOP COMMAND UNDER FLR HUMI BAS COMMUN PORT P1 USER DISABLE USER ENABLE IPU BOARD THIS ITEM MUST BE ENABLED IN ORDER TO COMMUNICATE A UNDER FLOOR HUMIDITY VALUE TO THE UNIT UNDRFLOOR AIR HUMIDITY BA...

Page 187: ...T FOR FIELD USE REAL TIME CONTROL PEAK 5 SEC AND AVERAGE DERIVED THE AVERAGE AND PEAK OVER THE LAST 5 SECONDS TIME USED BY THE CONTROL THIS IS NOT FOR FIELD USE REAL TIME CONTROL LOST AND PEAK DERIVED THE LOST AND PEAK TIME USED BY THE CONTROL THIS IS NOT FOR FIELD USE DE MODIFIER ADDRESS 1 TO 41943 USED TO ENTER A SPECIFIC DE INSTANCE SEE SECTION 6 COMMUNICATION DE MODIFIER OFFSET 1 TO 99 USED IN...

Page 188: ...ERVER API MODBUS CLIENT ESTABLISHES THE PROTOCOL FOR COMMUNICATION PORT 3 P3 STOP BITS 1 2 ESTABLISHES THE STOP BIT SETTING FOR COMMUNICATION PORT 3 P4 BAUD RATE 1200 4800 9600 19200 38400 57600 ESTABLISHES THE COMMUNICATION BAUD RATE FOR PORT 4 P4 MANUAL MAC ADDRESS 1 TO 127 ALLOWS THE MANUAL ENTRANCE OF THE MAC ADDRESS FOR PORT 4 SEE SECTION 6 COMMUNICATION P4 PARITY NONE EVEN ODD IGNORE ESTABLI...

Page 189: ...ed at the time of a fault The History information can be viewed after entering the Level 2 password When the HISTORY key is pressed the first active warning will be displayed If there are not any active warnings HISTORY 1 is displayed If there are not any faults NO FAULT will be displayed Data is not saved for warnings Data is saved for faults When a warning is displayed the key advances to the ne...

Page 190: ...ed when fault 3 was detected The key is pressed to view the second STATUS value The key is pressed to change to the next data section UNIT DATA The X or HISTORY key is pressed to go back to the fault display HISTORY ENTER PASSWORD HISTORY WARNING WRN BUILDING PRS HISTORY 01 31 OCT 2004 12 45 59 AM LOCKOUT DUCT PRS XDCR HISTORY 02 31 OCT 2004 10 42 39 AM AUTO RESET MSAT SENSOR HISTORY 03 30 OCT 200...

Page 191: ...e display will show the first applicable parameter of the menu list with the appropriate edit prompts If the password is not correct the screen will display Password Incorrect for two seconds and then revert back to the Login Prompt Pressing the X key during password entry will cancel the password entry process and take the user back to the Login Prompt Once a password has been accepted reentry of...

Page 192: ...5V 2 Ground 3 Receive 4 Transmit 5 Open Device Object Instance DE The unit is shipped to automatically establish the DE address after the MAC address is established using the MAC address switches on the IPU or through the User Interface The default Device Object Instance DE would be 23000 plus the MAC address For example If you had a MAC address of 10 the default Object Instance DE would be 23010 ...

Page 193: ...a DE address of 2010 the DE MODIFIERADDRESS to 20 and the DE MODIFIER OFFSET to 10 The Device Object instance DE is limited to a value between 0 and 4 194 303 The DE MODIFIER ADDRESS and the DE MODIFIER OFFSET are both set using the SERVICE key of the User Interface Go to parameter DE MODIFIER ADDRESS Press the key to enter the DE ModifierAddress number using the numeric keypad and then press the ...

Page 194: ...TERED VALUE FOR THE INSIDE CO2 LEVEL CO2 LVL INSIDE BAS MUST BE ENABLED USING THE SERVICE KEY IN ORDER TO USE THIS FEATURE CO2 _1_OUT CO2 1 OUTSIDE R AI07 520 ACTUAL OUTDOOR CO2 VALUE PPM CO2 _OFFSET CO2 OFFSET R W AV02 1027 THE DIFFERENCE BETWEEN THE INDOOR AND OUTSIDE CO2 MUST EXCEED THIS VALUE TO INITIATE DEMAND VENTILATION PPM COL_HEAT_FLT COOLING HEATING FAULT R BI02 1283 GIVES THE FAULT STAT...

Page 195: ...VAILABLE ON THIS UNIT COND_FAN_1B CONDENSER FAN 1B R BI16 1297 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT COND_FAN_2A CONDENSER FAN 2A R BI17 1298 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT COND_FAN_2B CONDENSER FAN 2B R BI18 1299 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT COND_FAN_3A CONDENSER FAN 3A R BI19 1300 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT COND_FAN_3B CONDENSER FAN 3B R BI20 1301 T...

Page 196: ...AIR_TMP_L EVAP LEAVING AIR TEMP LOW R W AV08 1033 ON A FLEXSYS UNIT WITH BYPASS THIS IS THE SUPPLY AIR TEMPERATURE LOW SET POINT F EVAP_AIR_TMP EVAPORATOR AIR TEMP 1 R AI20 533 ACTUAL TEMPERATURE OF AIR LEAVING THE EVAPORATOR COIL ON A FLEXSYS UNIT F EXH_FAN_STAT EXHAUST FAN STATUS R BI21 1302 THE STATUS OF THE EXHAUST FAN RUN VERIFICATION CIRCUIT 0 VERIFICATION CIRCUIT OPEN 1 VERIFICATION CIRCUIT...

Page 197: ...AGED GAS HEAT STAGES AVAILABLE 1 7 HEAT_VACTION HEATING VALVE ACTION R W AV BV 84 1109 A COMMUNICATED INPUT THAT ALLOWS THE HEATING VALVE ACTION TO BE CHANGED 0 DIRECTI ACTING 1 REVERSE ACTING HEATING_SAT HEATING SAT R W AV09 1034 THE HEATING SAT SET POINT FOR A VAV OR FLEXSYS UNIT F HEATING_VALV HEATING VALVE R AI24 537 THE OUTPUT FROM THE CONTROL TO A HOT WATER STEAM OR MODULATING GAS HEAT VALVE...

Page 198: ...OOR DAMPER OA_ENTH_LIMT OUTSIDE AIR ENTHALPY SETPOINT R W AV18 1043 THE UPPER ENTHALPY LIMIT TO ALLOW THE USE OF OUTDOOR AIR FOR SINGLE OR DUAL ENTHALPY ECONOMIZER BTU LB OA_ENTHALPY OUTSIDE AIR ENTHALPY R AI26 539 ACTUAL OUTSIDE AIR ENTHALPY BTU LB OA_FLO_PRS_1 OA FLOW PRESSURE 1 R AI27 540 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT OA_FLO_PRS_2 OA FLOW PRESSURE 2 R AI28 541 THIS FEATURE IS NOT A...

Page 199: ...S NOT AVAILABLE ON THIS UNIT PUMP_DOWN PUMP DOWN ENABLE R W AV BV 89 1114 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT PUMP_DOWN 1 PUMP DOWN LLSV 1 R BI37 1318 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT PUMP_DOWN 2 PUMP DOWN LLSV 2 R BI38 1319 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT PUMP_DOWN 3 PUMP DOWN LLSV 3 R BI39 1320 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT RAT_COOL_SP RAT COOLING SETP R ...

Page 200: ...AIR_ENTH RETURN AIR ENTHALPY R AI38 551 ACTUAL RETURN AIR ENTHALPY BTU LB RET_AIR_HUMD RETURN AIR HUMIDITY R AI39 552 ACTUAL RETURN AIR RELATIVE HUMIDITY RET_AIR_TEMP RETURN AIR TEMP R AI40 553 ACTUAL RETURN AIR TEMPERATURE F RET_FAN_OUT EXHAUST RETURN FAN VFD R AI41 554 THE OUTPUT FROM THE CONTROL TO THE EXHAUST OR RETURN FAN VFD RET_FAN_PRES RETURN FAN PRESSURE R AI42 555 THIS FEATURE IS NOT AVA...

Page 201: ...OF THE SMOKE PURGE 3 INPUT EITHER HARD WIRED OR COMMUNICATED ON OFF SMOKE_PUR1_B SMOKE PURGE 1 BAS R W AV BV 90 1115 A COMMUNICATED INPUT THAT ALLOWS SMOKE PURGE 1 TO BE TURNED ON OR OFF 0 OFF 1 OFF SMOKE_PUR2_B SMOKE PURGE 2 BAS R W AV BV 91 1116 A COMMUNICATED INPUT THAT ALLOWS SMOKE PURGE 2 TO BE TURNED ON OR OFF 0 OFF 1 OFF SMOKE_PUR3_B SMOKE PURGE 3 BAS R W AV BV 92 1117 A COMMUNICATED INPUT ...

Page 202: ...IT TEMP_3_ SUPERHEAT TEMPERATURES 3 SUPERHEAT R AI54 567 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT UND_FLR_DEWP UNDER FLOOR DEW POINT R AI55 568 THE CALCULATED DEW POINT OF THE AIR UNDER THE FLOOR IN A FLEXSYS SYSTEM F UND_FLR_HUMD UNDER FLOOR HUMIDITY R AI56 569 HUMIDITY VALUE OF THE AIR UNDER THE FLOOR THE CONTROL IS CONTROLLING TO IN A FLEXSYS SYSTEM UND_FLR_TEMP UNDER FLOOR TEMP R AI57 570 TE...

Page 203: ...INT F UNSTABLE _SYS UNSTABLE SYSTEM R BI60 1341 THIS INDICATES A UNSTABLE SYSTEM WHEN TWO UNITS ARE TWINNED TOGETHER AND THERE IS A SUDDEN DROP IN SUPPLY AIR TEMPERATURE OR FAN SPEED 0 NORMAL OPERATION 1 UNSTABLE CONDITION VAV_HEAT VAV HEAT R BI61 1342 IDENTIFIES THE STATUS OF THE BINARY OUTPUT TP ENERGIZE A VAV HEAT RELAY OFF ON VENT_CONTROL VENTILATION CONTROL R W AV BV 94 1119 A COMMUNICATED IN...

Page 204: ... A HARDWIRED OR COMMUNCIATED INPUT ON OFF Y2_HI_COOL_B Y2 HIGH COOL BAS R W AV BV 99 1124 A COMMUNICATED VALUE THAT ALLOWS THE Y2 COOL CALL TO BE TURNED ON AND OFF 0 OFF 1 ON Y2_HIGH_COOL Y2 LOW COOL R BI65 1346 IDENTIFIES THE STATUS OF THE Y2 COOL INPUT WITH EITHER A HARDWIRED OR COMMUNCIATED INPUT ON OFF ZONE_TEMP ZONE TEMP R AI60 573 ZONE TEMPERATURE THE CONTROL IS CONTROLLING TO F ZONE_TMP_BAS...

Page 205: ...ALPY 4 BEST METHOD nvoECON_STATUS ECONOMIZER SUITABLE ECON INSTALLED AI 019 SNVT_count 8 STATUS OF THE ECONOMIZER OPTION 0 INSTALLED AND INACTIVE 1 INSTALLED AND ACTIVE 2 NOT INSTALLED 3 DISABLED nviEL_AIR_TMP_H EVAP LEAVING AIR TEMP HIGH AV 007 SNVT_count_f 51 ON A FLEXSYS UNIT WITH BYPASS THIS IS THE SUPPLY AIR TEMPERATURE HIGH SET POINT F nviEL_AIR_TMP_L EVAP LEAVING AIR TEMP LOW AV 008 SNVT_co...

Page 206: ...R HEATING AV 077 SNVT_switch 95 THIS COMMAND ALLOWS THE NIGHT SET BACK HEATING FUC TION TO BE TURNED ON AND OFF 0 OFF 1 ON nvoOA_DAMPER OA DAMPER AI 025 SNVT_switch 95 THIS IS THE POSITION OF THE OUTDOOR DAMPER nviOA_DAMP_POS1 OA DAMPER MIN POSITION 1 AV 016 SNVT_switch 95 THE MINIMUM POSITION FOR THE OUTDOOR AIR DAMPER WHEN USING FIXED VENTILATION CONTROL WHEN THE SUP PLY FAN IS AT FULL SPEED nvi...

Page 207: ...UMD RETURN AIR HUMIDITY AI 039 SNVT_switch 95 ACTUAL RETURN AIR RELATIVE HUMIDITY nvoRET_AIR_TEMP RETURN AIR TEMP AI 040 SNVT_count_f 51 ACTUAL RETURN AIR TEMPERATURE F RET_FAN_OUT EXHAUST RETURN FAN VFD AI41 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT nvoRET_FAN_PRES RETURN FAN PRESSURE AI 042 SNVT_count_f 51 THE ACTUAL PRESSURE THAT IS USED TO CONTROL THE RETURN FAN IWC nvoRET_FAN_STAT RETURN FAN...

Page 208: ...VFD AI48 THE ACTUAL OUPUT TO THE SUPPLY FAN VFD nvoSUPPLY_FAN SUPPLY FAN BI 059 SNVT_switch 95 THE STATUS OF THE BINARY OUPUT FROM THE CONTROLLER TO THE SUPPLY FAN CIRCUIT ON OFF nviSYSTEM_STOP SYSTEM STOP AV 035 SNVT_count 8 A 0 VALLUE ALLOWS ALL COMPRESSORS TO OPERATE 1 TURNS OFF COMPRESSOR SYSTEM 1 2 TURNS OFF COM PRESSOR SYSTEM 2 3 TURNS OFF COMPRESSOR SYSTEM 3 nvoTEMP_1_SUCTION TEMPERATURE 1 ...

Page 209: ... UNOCCUPIED ZONE COOLING SET POINT F nviUNOCC_ZN_HEAT UNOCCUPIED ZONE HEATING AV 039 SNVT_count_f 51 THE UNOCCUPIED ZONE HEATING SET POINT F nvoUNSTABLE _SYS UNSTABLE SYSTEM BI 060 SNVT_switch 95 THIS INDICATES A UNSTABLE SYSTEM WHEN TWO UNITS ARE TWINNED TOGETHER AND THERE IS A SUDDEN DROP IN SUPPLY AIR TEMPERATURE OR FAN SPEED YES UNSTABLE CONDITION NO NORMAL OPERATION nvoVENT_DEM_OUT VENTILATIO...

Page 210: ...L BYPASS DAMPER POSITION CO2 _1_OUT CO2 1 OUTSIDE R AI07 PPM AI 7 ACTUAL OUTDOOR CO2 VALUE PPM C02_2_INSIDE CO2 1 INSIDE R AI08 PPM AI 8 ACTUAL INDOOR CO2 VALUE PPM CO2 _OFFSET CO2 OFFSET R W AV02 PPM AO 2 THE DIFFERENCE BETWEEN THE INDOOR AND OUTSIDE CO2 MUST EXCEED THIS VALUE TO INITIATE DEMAND VENTILATION PPM COL_HEAT_ FLT COOLING HEATING FAULT R BI02 0 1 DI 1 GIVES THE FAULT STATUS OF THE COOL...

Page 211: ...OW LIMIT R W AV04 WC AO 4 THE DUCT STATIC LOWER SET POINT WG DSP_RST_BAS DUCT STATIC PRES RST BAS R W AV05 AO 5 A BAS ENTERED VALUE THAT RESULTS IN A RESET DOWN FROM THE DUCT STATIC HIGH LIMIT BASED ON A PERCENT OF THE DIFFERENCE BETWEEN DUCT STATIC HIGH LIMIT AND DUCT STATIC LOW LIMIT DUCT PRES RST BAS MUST BE ENABLED USING THE SERVICE KEY IN ORDER TO USE THIS FEATURE ECONO_ INSTAL ECONOMIZER INS...

Page 212: ...STAGES ELECTRIC HEAT STAGES GAS HEAT STAGES R AI23 INDEX AI 16 DERIVED VALUE SHOWING THE NUMBER OF ELECTRIC OR STAGED GAS HEAT STAGES AVAILABLE 1 7 HEATING_VALV HEATING VALVE R AI24 AI 17 THE OUTPUT FROM THE CONTROL TO A HOT WATER STEAM OR MODULATING GAS HEAT VALVE HW_FRZ_STAT HOT WATER FRZ STATUS R BI33 0 1 DO 18 THE STATUS OF THE FREEZESTAT CIRCUIT ON UNITS WITH HOT WATER OR STEAM HEAT 0 NO FAUL...

Page 213: ...PPLY FAN IS AT 50 OF FULL SPEED OA_ENTHALPY OUTSIDE AIR ENTHALPY R AI26 BTU LB AI 19 ACTUAL OUTSIDE AIR ENTHALPY BTU LB OA_ENTH_ LIMT OUTSIDE AIR ENTHALPY SETPOINT R W AV18 BTU LB AO 17 THE UPPER ENTHALPY LIMIT TO ALLOW THE USE OF OUTDOOR AIR FOR SINGLE OR DUAL ENTHALPY ECONOMIZER BTU LB OA_FLO_ PRS_1 OA FLOW PRESSURE 1 R AI27 WC AI 20 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT OA_FLO_ PRS_2 OA FL...

Page 214: ...I38 BTU LB AI 31 ACTUAL RETURN AIR ENTHALPY BTU LB RET_AIR_ HUMD RETURN AIR HUMIDITY R AI39 AI 32 ACTUAL RETURN AIR RELATIVE HUMIDITY RET_AIR_ TEMP RETURN AIR TEMP R AI40 DEG F AI 33 ACTUAL RETURN AIR TEMPERATURE F RET_FAN_OUT EXHAUST RETURN FAN VFD R AI41 AI 34 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT RET_FAN_ PRES RETURN FAN PRESSURE R AI42 WC AI 35 THIS FEATURE IS NOT AVAILABLE ON THIS UNIT R...

Page 215: ... SET POINT FOR A FIRST STAGE HEATING DEMAND F STG_2_COOL STG 2 COOLING R W AV33 DEG F AO 26 FOR A CONSTANT VOLUME UNIT THIS IS THE ACTIVE SAT SET POINT FOR A SECOND STAGE COOLING DEMAND F STG_2_HEAT STG 2 HEATING R W AV34 DEG F AO 27 FOR A CONSTANT VOLUME UNIT THIS IS THE ACTIVE SAT SET POINT FOR A SECOND STAGE HEATING DEMAND F SUP_AIR_ TEMP SUPPLY AIR TEMP R AI46 DEG F AI 39 ACTUAL SUPPLY AIR TEM...

Page 216: ... SYSTEM UND_TEMP_ BAS UNDER FLOOR TEMP BAS R W AV37 DEG F AO 30 THIS ALLOWS THE BAS SYSTEM TO INPUT A UNDER FLOOR TEMPERATURE VALUE TO THE CONTROL ON A FLEXSYS SYSTEM F UNDER FLR TEMP BAS MUST BE ENABLED USING THE SERVICE KEY IN ORDER TO USE THIS FEATURE UND_FLR_ TEMP UNDER FLOOR TEMP R AI57 DEG F AI 47 TEMPERATURE OF THE AIR UNDER THE FLOOR THE CONTROL IS CONTROLLING TO IN A FLEXSYS SYSTEM F UNIT...

Page 217: ... SPEED 0 NORMAL OPERATION 1 UNSTABLE CONDITION VENT_DEM_ OUT VENTILATION DEMAND P1 OUTP R AI59 AI 49 THE VENTILATION OUTPUT BEING GENERATED BY THE DEMAND VENTILATION FEATURE VENT_ENABLE VENTILATION ENABLE R W AV95 0 1 AO 41 THIS COMMAND ALLOWS THE VENTILATION FUNCTION TO BE TURNED ON OR OFF 0 OFF 1 ON ZONE_TMP_ BAS ZONE TEMP BAS R W AV40 DEG F AO 33 THIS ALLOWS THE BAS SYSTEM TO INPUT A ZONE TEMPE...

Page 218: ...BLED or USER DISABLED this feature BLDG PRESSURE CNTRL OFFSET This parameter is programmed through the SETPOINTS key The Unit Controller To determine when to turn on the exhaust fan When the exhaust option is configured for ON OFF PRESS CNTRL BUILDING PRESSURE ACTIVE SETPOINT This parameter is programmed through the SETPOINTS key It identifies the control point for the building pressure BUILDING P...

Page 219: ...or USER DISABLED CONTROL METHOD This parameter is programmed through the OPTIONS key and identifies the control method being used on a Constant Volume unit The choices are Staged Wired Zone Temp or Comm Zone Temp COOLING CONTROL OFFSET This is the control band the unit is trying to maintain The control band is the Active Set Point plus or minus the Cooling Control Offset If the temperature is abov...

Page 220: ...grammed through the SETPOINTS key This allows the use of three different duct pressure control ranges 0 to1 00 in wg 0 to 2 50 in wg or 0 to 5 00 in wg DUCT STATIC OVER PRESSURE This parameter is programmed through the SETPOINTS key This sets the maximum allowable Duct Static value before the Unit Controller lockouts the unit on an over pressure fault DUCT STATIC PRESS ACTIVE SP This is the curren...

Page 221: ...AUST OUTPUT FOR FAN STOP This parameter is set through the SETPOINTS key and identifies the position of the exhaust damper required to turn OFF the exhaust fan in an ON OFF PRESS CNTRL option EXHAUST SYS STATUS This is the active status of the exhaust system The display will show Normal Active Normal Inactive Faulted User Disabled or None EXHAUST RETURN FAN VFD This is a derived value that indicat...

Page 222: ...t or Fault I O THIS FEATURE IS NOT AVAILABLE ON THIS UNIT FURNACE 2 MODE This is the current status of the second heat exchanger section of a staged gas heat unit The User Interface will display Off Purge Ignition On Low On High Safety Trip Safety Fault Safety Lockout or Fault I O FURNACE 3 MODE This is the current status of the third heat exchanger section of a staged gas heat unit The User Inter...

Page 223: ...y When the outdoor temperature is equal to or less than this temperature the Unit Controller will prevent the compressors from operating MINIMUM OA FLOW SETPOINT This parameter is programmed through the SETPOINTS key When air measurement stations are installed and the unit is not in the Occupied mode this is the minimum allowable airflow THIS FEATURE IS NOT AVAILABLE ON THIS UNIT MORNING WARM UP T...

Page 224: ... the same as OA Flow 1 for a Minimum or Full IAQ and is the sum of the OA Flow 1 and OA Flow 2 for a 1 3 2 3 IAQ THIS FEATURE IS NOT AVAILABLE ON THIS UNIT OUTSIDE AIR HUMIDITY This is the outdoor air relative humidity OUTSIDE AIR MAXIMUM FLOW This parameter is programmed through the SETPOINTS key When air measurement stations are installed and the unit is in the Demand Ventilation mode this is th...

Page 225: ...s ready to be energized The User Interface will display either YES or NO READY TO RUN COMP B This means the minimum OFF time has been achieved and all the safety circuits are closed and compressor 2 or 4 is ready to be energized The User Interface will display either YES or NO READY TO STOP COMP A This means the minimum ON time has been achieved and compressor 1 or 3 is ready to be de energized Th...

Page 226: ...acuation Smoke Purge Sequence 1 is energized through a Binary input to the Unit Controller SMOKE PURGE SEQ 2 This parameter is programmed through the OPTIONS key This allows the user to select which of the three smoke purge sequences to use a sequence 2 Purge Pressurization or Evacuation Smoke Purge Sequence 2 is energized through a Binary input to the Unit Controller SMOKE PURGE SEQ 3 This parame...

Page 227: ...6 Ton 110 Ton 115 Ton 130 Ton or 150 Ton UNIT TYPE This parameter is programmed through the OPTIONS key and identifies the type of unit The choices are Constant Volume Variable Volume or FlexSys UNIT OVERALL STATUS This is the active status of the Unit The display will show Local Stop Run Unit Trip Unit Fault Unit Lockout SMK Purge Press SMK Purge Purge Smk Purge Evac or Unstable system VENT SYS S...

Page 228: ...t the DUCT STATIC PRESS ACTIVE SP The transducer is factory wired but pneumatic tubing must be field supplied and installed refer to Section 2 Installation in this manual The duct static pressure transducer measures differential pressure between the pressure in the duct and atmospheric pressure When verifying transducer operation the technician must insert a tee in the pneumatic tubing and connect...

Page 229: ...an be made of the building pressure vs output VDC from the transducer A practical and quick check of this transducer can also be accomplished by removing the pneumatic tubing lines from both the low and high side connections on the transducer Since both of the inputs will now be exposed to the same pressure the differential pressure will be zero and the output 2 5VDC according to Table86 TABLE 96 ...

Page 230: ...t The Unit Controller monitors the operation of the Staged Gas Heat sections and displays the status through the STATUS screen of the User Interface The operation of each of the gas heat sections is monitored by a multiplexer installed behind the User Interface panel When a gas heat section is energized it sends a 24V signal to the multiplexer The multiplexer takes the five ON OFF inputs and conve...

Page 231: ...tion under which the unit continues to operate Warnings will not require the unit to shut down however they may require the Unit Controller to disable certain functions that may result in the unit operating less efficiently or eliminate certain features Table 91 lists the faults warnings that will be displayed under the STATUS and HISTORY keys of the User Interface When a fault is present line two...

Page 232: ... When the fault clears COMPRESSOR SYSTEM 1 2 OR 3 CLEAR shows the time it took for the fault to clear in the HISTORY buffer COMPRESSOR SYSTEM 1 2 OR3 TIME OUT If the COMPRSTATUSCLEARTIME 1 2 OR3 timer reaches60minutesa COMPRESSORSYSTEM 1 2 OR 3 TIME OUT will be indicated in the HISTORYbuffer In most cases this indicates the compressor circuit over current protector opened The compressor circuit ov...

Page 233: ...9 TB8 TB1 TB7 I O IPU ANALOG OUTPUTS See Fig 8 4 BINARY INPUTS See Fig 8 3 BINARY INPUTS See Fig 8 3 BINARY OUTPUTS See Fig 8 2 BINARY OUTPUTS See Fig 8 2 ANALOG INPUTS See Fig 8 5 ANALOG INPUTS See Fig 8 5 BINARY OUTPUTS J12 3 5VDC J12 1 GND FLASH CARD J11 1 GND J11 3 12 VDC 12 VDC FUSE 5 VDC FUSE ...

Page 234: ... I O CONTROL IPU CONTROL TB3 4 FURN OUTPUT 3 572 TB3 2 FURN OUTPUT 1 570 TB4 5 COMP 4 114 TB4 3 COMP 2 112 24V TB4 1 100 TB1 12 VAV HEAT OUTPUT 424 TB1 11 VAV HEAT COMM 423 24 V TB3 1 299R TB3 3 FURN OUTPUT 2 571 TB4 4 COMP 3 113 TB4 2 COMP 1 111 TB1 4 EXHAUST RETURN FAN 109 TB1 3 24V 100 TB1 2 SUPPLY FAN 108 TB1 1 24V 100 ...

Page 235: ...8 FAN G 396 TB8 2 OCC UNOCC 392 TB8 1 SHUTDOWN 391 TB8 16 24V COMM TB7 16 24V COMM 100 TB7 14 HOTWATER FREEZESTAT 388 TB7 12 24VAC 100 TB7 10 SUPPLY FAN PROVING 384 JUMPERED TB7 2 SYS 2 COMP STATUS 100G TB7 15 24VAC 389 TB7 13 DIRTY FILTER SW 387 TB7 11 EXHAUST RETURN FAN PROVING 385 TB7 9 24VAC 100 TB7 3 24 VAC 100 TB7 1 SYS 1 COMP STATUS 100H TB9 I O CONTROL TB9 12 BYPASS DAMPER COM 411 TB9 10 H...

Page 236: ...SHIELD RETURN AIR TEMP J2 10 REF RETURN AIR TEMP 5VDC 317 J2 3 INPUT OA HUM 318 J2 7 COM OA HUM 319 J2 4 INPUT RA HUM 320 J2 8 COM RA HUM 321 PIN NO SIGNAL J5 1 INPUT GAS HEAT STATUS 542 J5 6 COM GAS HEAT STATUS 543 J5 11 REF GAS HEAT STATUS 5VDC 541 J5 2 INPUT OA CO2 410 J5 7 COM OA CO2 420 J5 3 INPUT RA CO2 430 J5 8 COM RA CO2 440 J6 2 INPUT DUCT PRESS A19 J6 7 COM DUCT PRESS A19C J6 3 INPUT BLD...

Page 237: ...FAN FAULT WRN EXHAUST FAN THE EXHAUST FAN OUTPUT IS ON FOR 45 SECONDS AND THE RUN VERIFICATION INPUT IS LOW OPEN FOR 10 SECONDS AUTO RESET POWER EXHAUST OTHER THEN NONE EXHAUST SYSTEM STATUS WARNING SENSOR MISC FAULT WRN FREEZESTAT TRIP THE HW STEAM FREEZSTAT CIRCUIT GOES HIGH CLOSED BUT GOES LOW OPEN WITHIN 5 MINUTES AUTO RESET HEATING SYSTEM TYPE EQUALS HOT WATER STEAM SENSOR MISC STATUS WARNING...

Page 238: ...NO INSTALLED DUAL ENTHALPY SENSOR MISC STATUS WARNING SENSOR MISC FAULT WRN SLAB TEMP SENSOR UDERFLOOR SLAB TEMP SENSOR IS OUT OF RANGE FOR MORE THAN OR EQUAL TO10 SECONDS AUTO RESET UNIT TYPE IS FLEXSYS AND DEW POINT RESET IS USER ENABLED SENSOR MISC STATUS WARNING SENSOR MISC FAULT WRN UNDER FLOOR RH SENSOR UDERFLOOR AIR HUMIDITY IS 5 FOR MORE THAN OR EQUAL TO 5 MINUTES AUTO RESET UNIT TYPE IS F...

Page 239: ...UT OF RANGE FOR MORE THAN OR EQUAL TO 10 SECONDS AUTO RESET UNIT TYPE IS FLEXSYS SENSOR MISC STATUS SAFETY LOCKOUT SENSOR MISC FAULT AUTO RESET POWER FAIL POWER IS LOST WHEN THE UNIT OPERATING STATE IS RUN AUTO RESET AUTO RESET RAT SENSOR RETURN AIR TEMP CURRENT SENSOR IS OUT OF RANGE FOR MORE THAN OR EQUAL TO 10 SECONDS AUTO RESET SENSOR MISC STATUS SAFETY FAULT SENSOR MISC FAULT AUTO RESET REMOT...

Page 240: ...S STATUS SAFETY LOCKOUT FAN FAULT LOCKOUT HOT WATER FREEZE THE HYDRONIC FREEZE STAT SWITCH REMAINED CLOSED MORE THAN OR EQUAL TO 5 MINUTES UNIT LOCKOUT HEAT TYPE HOT WATER STEAM HEATING SYS STATUS SAFETY LOCKOUT COOLING HEATING FAULT LOCKOUT MANUAL STOP THE COMPRESSOR SYSTEM HAS BEEN PLACED IN THE STOP MODE EITHER THROUGH THE USER INTERFACE OR BY A COMMUNICATED INPUT SYSTEM LOCKOUT COMP SYS STATUS...

Page 241: ...ICATES THE COMPRESSOR SYSTEM SAFETY CIRCUIT EXPERIENCED A TRIP BUT RESET PRIOR TO THE EXPLORATION OF THE 60 MINUTE RESET TIME FUNCTION IF THE SAFETY CIRCUIT DOES NOT RESET IN 60 MINUTES IT WILL BE REPLACED WITH A LOCKOUT COMPRESSOR SYSTEM TIME OUT MESSAGE AUTO RESET COMPRESSOR SYSTEM CLEAR WHEN EVER THERE IS A COMPRESSOR SAFETY TRIP THE PRIMARY UNIT CONTROLLER INITIATES THE COMPR STATUS CLEAR TIME...

Page 242: ...nth followed by the day Each of these files contains all the data monitored for the day specified by the file name All connected Analog Inputs Analog Outputs Digital Inputs Digital Outputs Serial Data and Derived Data will be collected The data will be collected once every 5 seconds and stored in the same order as in the History buffer Each line of data will be timed and date stamped Each file wil...

Page 243: ... INTERRUPTED 5 I O ERROR 6 BAD FILE HANDLE 11 TRY AGAIN LATER 12 OUT OF MEMORY 16 RESOURCE BUSY 19 NO SUCH DEVICE 20 NOT A DIRECTORY 21 IS A DIRECTORY 22 INVALID ARGUMENT 23 TOO MANY OPEN FILES IN SYSTEM 27 FILE TOO LARGE 28 NO SPACE LEFT ON DEVICE 29 ILLEGAL SEEK 30 READ ONLY FILE SYSTEM 60 FILE NAME TOO LONG TABLE 105 DATA LOG ERROR LOG DETAIL ...

Page 244: ...244 JOHNSON CONTROLS 5276178 JIM C 0118 Service NOTES ...

Page 245: ...dence is supported by the 30 day dealer protection coverage portion of our standard warranty policy which states that Johnson Controls UPG will cover parts and labor on new equipment start up failures that are caused by a defect in factory workmanship or material for a period of 30 days from installation Refer to current standard warranty policy and warranty manual found on UPGnet for details In t...

Page 246: ...ll open position and the frequency drive is operating at 60 HZ Do not proceed with the equipment start up without the design CFM information Design Supply Air CFM __________________________ Design Return Air CFM ______________________________________ Design Outdoor Air CFM At Minimum Position _______________________________________________________ Total External Static Pressure ___________________...

Page 247: ...te Air Moving Inspection Completed See Notes Alignment of drive components Belt tension adjusted properly Blower pulleys tight on shaft bearing set screws tight wheel tight to shaft Pressure switch or transducer tubing installed properly Exhaust Inspection Powered Barometric Relief Completed See Notes Check hub for tightness Check fan blade for clearance Check for proper rotation Check for proper ...

Page 248: ...ment or change required to obtain the correct airflow Was it necessary to increase of decrease the airflow to meet the design conditions If the motor pulley size was changed measure the outside diameters of the motor and blower pulleys and record those diameters here Blower Motor HP _______________________________FLA________ RPM________ Pulley Pitch Diameter ______________Turns Out________ Final T...

Page 249: ... Air Temperature ________________ F db ________________ F wb ________________ RH Mixed Air Temperature ________________ F db ________________ F wb ________________ RH Supply Air Temperature ________________ F db ________________ F wb ________________ RH Action Completed See Notes Prove Compressor Rotation 3 phase only by gauge pressure Prove High Pressure Safety All Systems Prove Low Pressure Safe...

Page 250: ..._________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ___________________________...

Page 251: ... 2017 Johnson Controls Inc P O Box 423 Milwaukee WI 53203 www johnsoncontrols com Printed in USA 5276178 JIM C 0118 Supersedes 5276178 JIM B 0117 ...

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