York eco2 055 Installation Operation & Maintenance Download Page 29

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YORK INTERNATIONAL

FORM 100.50-NOM1 (604)

SLT+

EVR

SLT-

UFH-

SHIELD

UFH+

R(24VA

FDFS

Common

Signal

0-5V Output

Underfloor RH Sensor

* Use Shielded Wire

Closed = Lower Evap. Temperature
Open = Normal Evap. Temperature

Slab Temp Sensor

* Use Shielded Wire

1K Nickel

Signal

Common

Flexsys Evap. Temperature

Reset Input

Flexsys Bypass Filter

Dirty Filter Switch

(Field Installed)

Note, 24VAC signal voltage must be sourced
from the unit. Use of another power source
external of the unit may cause equipment
damage.

Closed = Dirty Fiters
Open = Clean Filters

Flexsys Underfloor Slab

Temperature

Flexsys Underfloor

Humidity Sensor

AI9AI9

AI9CAI9C

AI10CAI10C

AI10AI10

AI6CAI6C

AI6AI6

AI5CAI5C

AI5AI5

AI8CAI8C

AI8AI8

AI7CAI7C

AI7AI7

AI11CAI11C

AI11AI11

AI12AI12

AI12CAI12C

SSPSSP

SSNSSN

SSAPSSAP

SSANSSAN

TSCTSC

TSAOTSAO

IAQNIAQN

IAQPIAQP

AI13AI13

AI13CAI13C

BIR

BI11

BI12

BI12
BI13

BI13

120

BI14

BIR

110

110
BYP

BYP

OCC

SMK

144

145

145
146

146

143

143
142

142

141

101101

102102

104104

103103

106106

105105

107107

HRHR

109109

108108

AO6AO6

AO6CAO6C

AO5AO5

AO5CAO5C

AO4AO4

AO4CAO4C

AO1CAO1C

AO1AO1

AO2CAO2C

AO2AO2

AO3CAO3C

AO3AO3

100100

COMCOM

200200

2COM2COM

100

COM

200

2COM

G/Y

WHTWHT

REDRED

BLKBLK

BLK

BLK
WHT

WHT
RED

RED

SHLD

N2G

N2G
N2N

N2N
N2P

N2P

MOD-UNT KIT

YK-325-36143-001

COM

100

BLKBLK

WHTWHT

REDRED

GRNGRN

BLKBLK

WHTWHT

REDRED

GRNGRN

WHTWHT

BLKBLK

GRNGRN

REDRED

WHTWHT

BLKBLK

GRNGRN

REDRED

WHTWHT

SWITCH

STOP/RUN

KEYPAD MOD-UI

DISPLAY &

(LANGUAGE KIT)

KEYPAD/DISPLAY PANEL

15V15V

+15V+15V

Y1Y1

Y2Y2

W1W1

W2W2

OCCOCC

SDSD

+15V+15V

2AI12AI1

2AI1C2AI1C

2AI22AI2

2AI2C2AI2C

2AI32AI3

2AI3C2AI3C

2AI42AI4

2AI4C2AI4C

2AI52AI5

2AI5C2AI5C

2AI62AI6

2AI6C2AI6C

+15V+15V

N2GN2G

N2NN2N

N2PN2P

TB2

RJ11-6

4/C CABLE4/C CABLE

100100

SDSD

SELECTOR SWITCH

TO SA-FAN VFD

DWG. 202989

DWG. 202990

BI1BI1

AI14AI14

AI14CAI14C

SLTSLT

SLTCSLTC

UFHUFH

UFHCUFHC

200200

2COM2COM

2AO42AO4

2AO4C2AO4C

BI2BI2

EVREVR

FDFSFDFS

24VAC

24VAC-COM

CTB1

TB1

MOD-DCU BOARD

(YK-025-36103-000)

TSI BOARD

(YK-025-36102-000)

MOD-UNT

(YK-025-36105-000)

24VAC-COM

24VAC

(75VA)

(100VA)

GRD

CTB2

LOCATION OF CTB2

CTB2

3. Maximum power available from the

4. Use shielded wire where shown.

24VAC terminal is 40 VA.

2. All wiring is Class 2, low voltage.

Wiring Notes:
1. Wiring shown indicates typical wiring.
Refer to the IOM Manual for more
detailed wiring methods and options.

FIG. 8 –

FLEXSYS CTB2 WIRING

CTB2

FlexSys UnderFloor Slab Temperature Sensor:

The Flexsys Under-Floor Slab Temperature sensor
is lo cat ed on the concrete slab, which makes up the
bot tom of the Under-Floor plenum, and measures the
tem per a ture of this slab.

FlexSys UnderFloor Relative Humidity Sensor:

The Flexsys Under

oor Relative Humidity Sensor is

located in the under-

oor plenum and mea sures the

rel a tive humidity of the under

oor air.

FlexSys Evap Temperature Reset Input:

This is used to initiate reset of the SAT if enabled.

FlexSys Bypass Filter Dirty Filter Switch Input:

Is a

eld mounted differential pressure switch that In-

di cates the present of a dirty bypass air

lter.

CTB2 FLEXSYS WIRING

LD07630

Summary of Contents for eco2 055

Page 1: ...INSTALLATION OPERATION MAINTENANCE PACKAGED ROOFTOP AIR CONDITIONING UNITS Supersedes Form 100 50 NOM1 502 Form 100 50 NOM1 604 50 THROUGH 105 TONS R 407C AND R 22 DESIGN LEVEL C 00566VIP ...

Page 2: ... materials This individual 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 Us...

Page 3: ...should verify with the owner whether the equipment has been modiÞed and if current literature is available 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 BASE PRODUCT TYPE NOMINAL CAPACITY APPLICATION REFRIGERANT VOLTAGE DUCT LOCATIONS DESIGN SPECIAL Y 0 2 5 B 1 7 B C P 0 3 0 C 2 8 L X 0 3 5 4 6 R S A 0 4 0 4 5 B 0 4 5 5 8 R L 0 5 0 4 0 S 0 5 5 0 6 0 0 6 5 C 0 7 0 N 0 7 5 G 0 8 0 M 0 8 5 E 0 9 0 S 0 9 5 H...

Page 4: ...oods For Exhaust Air 25 Field Wiring 25 Evaporator Coil Face Damper 26 Return Air Bypass Damper 26 Roof Link 27 Bacnet and Lon Network Communication 27 Dirty Filter Switch 27 CTB2 29 Power Wiring 30 Electrical Service Sizing 30 Single Point Power Supply Wiring 31 Single Point Power Supply Wiring with Non Fused Disconnect Switch 32 Dual Point Power Supply Wiring 33 Roof Curb Installation 34 Duct Sy...

Page 5: ... Compressor Operating Controls 81 Refrigerant Safety Operation 82 Flexsys VAV Operation 82 SECTION 6 MENU NAVIGATION AND DISPLAY DESCRIPTIONS OptiLogic Control Center 85 Navigating The Menus 85 History Menu Navigation 85 Unit Status Navigation 85 Operation Data Navigation 89 Setpoints Navigation 92 Unit Setup Navigation 92 ConÞguration Navigation 94 Service Navigation 95 History Navigation 98 SECT...

Page 6: ... Up 51 Table 13 VAV Four or Six Compressor Logic Staging Down 52 Table 14 Timeouts and Delays 53 Table 15 Staged Heating Steps 54 Table 16 Modes of Operation 57 LIST OF TABLES LIST OF FIGURES Fig 1 Packaged Rooftop Air Conditioning Unit 8 Fig 2 Unit Rigging 12 Fig 3 Unit Clearances 12 Fig 4 Drain Trap Water Location Draw Through 24 Fig 5 Trap Detail draw Through Application 24 Fig 6 Network Commun...

Page 7: ...uency Drive hw Hot Water w1 Thermostat Input For The First Stage of Heating mit Modular Integrated Terminal w2 Thermostat Input For The Second Stage of Heating mitd MIT Bypass Damper oa Outdoor Air y1 Thermostat Input For The First Stage of Cooling oad Outside Air Damper y2 Thermostat Input For The Second Stage of Cooling oat Outside Air Temperature ydc YORK Digital Controller Fig 34 Minimum Flow ...

Page 8: ... air is in the build ing A myriad of airßow measurement options are available from minimum airßow to high accuracy ECOLOGICAL AND ECONOMICAL DESIGN First packaged RTU with 407C optimized design Cooling and Heating Superior operating per formance provides lower operating costs Smaller steps of cooling capacity provide tighter control of building environment and occupant comfort while optimizing ene...

Page 9: ...s and precision machining also ensure that smooth compression occurs in all involute pockets simultaneously When compression forces are equally distributed over the entire scroll surface equal forces in opposing directions cancel one another min imizing any imbalance Consequently compression is smooth continuous and quiet Vibration isolators on each compressor handle normal vibration For extra qui...

Page 10: ...r fan damper By varying the speed of the condenser fan better control and quieter operation is obtained during the colder months Low ambient controls are available on all systems offering higher rooftop cooling ca pacity than competitive units HotGasBypass Optionalonconstantvolumeunits hot gas bypass reduces the cycling of compressors which helps prolong the life of the equipment Hot Gas Bypass is...

Page 11: ...lief valves HP cut out settings design working pressures and venti lation requirements consistent with the amount and type of refrigerant charge Lethal voltages exist within the control panels Before servicing open and tag all disconnect switches LOCATIONS AND CLEARANCES The following guidelines should be used to select a suitable location for unit installation 1 Unit is designed for outdoor insta...

Page 12: ...der bars and cables should be used when rigging see Figure 2 It is also mandatory that an experienced and reliable rigger be selected to handle unloading and Þnal placement of the equipment The FIG 3 UNIT CLEARANCES rigger must be advised that the unit contains internal components and that it be handled in an upright position Care must be exercised to avoid twisting the equipment structure Unit we...

Page 13: ... 162 162 162 162 162 750 MBH Gas Heat 324 324 324 324 324 1050 MBH Gas Heat NA NA NA NA 486 40 kW 415 3 60 or 40 kW 480 3 60 2 Steps Electric Heat 410 410 410 410 NA 80 kW 208 3 60 or 108 kW 240 3 60 5 Steps Electric Heat 490 490 490 490 NA 108 kW 415 3 60 4 steps Electric Heat 450 450 450 450 470 150 kW 415 3 60 5 Steps Electric Heat 470 470 470 470 490 200 kW 415 3 60 or 200 kW 480 3 60 6 Steps ...

Page 14: ...ax cfm 0 20000 0 20000 0 20000 0 20000 0 27000 Static Pressure Range min to max ESP 0 1 0 1 0 1 0 1 0 1 Optional Exhaust Fan Quantity Fans Motors 2 1 2 1 2 1 2 1 2 1 Type FC FC FC FC FC Size 18 18 18 18 18 18 18 18 20 18 Motor Size Range min to max HP 5 20 5 20 5 20 5 20 5 30 Airflow Range min to max cfm 0 22500 0 24000 0 27000 0 27000 0 32000 Static pressure range min to max iwg 0 2 0 2 0 2 0 2 0...

Page 15: ...x20 25X16 25x20 25X16 25x20 25X16 25x20 Total Filter Face Area square feet 63 9 63 9 63 9 63 9 77 1 Filters 12 rigid 65 2 30 prefilter pre filter position Quantity 1 4 9 1 4 9 1 4 9 1 4 9 2 8 9 Size length x width in 16x20 25x16 25x20 16x20 25x16 25x20 16x20 25x16 25x20 16x20 25x16 25x20 16x20 25x16 25x20 Total Filter Face Area square feet 43 0 43 0 43 0 43 0 55 8 Filters 12 rigid 95 2 30 prefilte...

Page 16: ... Range min to max cfm 8 250 27 000 11 150 27 000 8 250 36 000 Electric Heaters Size Range min to max kW 40 150 40 150 40 150 40 150 80 200 Heating steps1 2 7 2 7 2 7 2 7 2 7 Minimum OA Temp for Mech Cig 45 45 45 45 45 Low Ambient Option Min OA Temp 0 0 0 0 0 MODEL SIZE 050 055 060 065 070 1 Electric heat steps and airflow range depends on voltage and size Consult the air pressure drop tables for s...

Page 17: ...162 750 MBH Gas Heat 324 324 324 324 324 324 1050 MBH Gas Heat 486 486 486 486 486 486 40 kW 415 3 60 or 40 kW 480 3 60 2 Steps Electric Heat NA NA NA NA NA NA 80 kW 208 3 60 or 108 kW 240 3 60 5 Steps Electric Heat 510 510 510 NA NA NA 108 kW 415 3 60 4 steps Electric Heat 470 470 470 510 510 510 150 kW 415 3 60 5 Steps Electric Heat 490 490 490 530 530 530 200 kW 415 3 60 or 200 kW 480 3 60 6 St...

Page 18: ... 20000 0 20000 0 20000 0 20000 0 27000 Static Pressure Range min to max ESP 0 1 0 1 0 1 0 1 0 1 0 1 Optional Exhaust Fan Quantity Fans Motors 2 1 2 1 2 1 2 1 2 1 2 1 Type FC FC FC FC FC FC Size 20 18 20 18 20 18 20 18 20 18 20 18 Motor Size Range min to max HP 5 30 5 30 5 30 5 30 5 30 5 30 Airflow Range min to max cfm 0 32000 0 32000 0 32000 0 36000 0 36000 0 36000 Static pressure range min to max...

Page 19: ... 25X16 25x20 25X16 25x20 25X16 25x20 25X16 25x20 25X16 25x20 Total Filter Face Area square feet 77 1 77 1 77 1 92 5 92 5 92 5 Filters 12 rigid 65 2 30 prefilter pre filter position Quantity 2 8 9 2 8 9 2 8 9 8 12 8 12 8 12 Size length x width in 16x20 25x16 25x20 16x20 25x16 25x20 16x20 25x16 25x20 25x16 25x20 25x16 25x20 25x16 25x20 Total Filter Face Area square feet 55 8 55 8 55 8 61 6 61 6 61 6...

Page 20: ... Furnace Staged Furnace Sizes input output stages 375 mbh 300 mbh 2 stages 750 mbh 600 mbh 4 stages 1125 mbh 900 mbh 6 stages Gas Pressure Range min to max iwg 3 14 w c Airflow Range min to max cfm 6 950 36 000 11 150 36 000 15 150 36 000 Modulating Furnace Sizes input output turndown 375 mbh 300 mbh 8 1 turndown 750 mbh 600 mbh 16 1 turndown 1125 mbh 900 mbh 24 1 turndown Gas Pressure Range min t...

Page 21: ...5 15 2 13 4 6 7 5 4 7 5 24 8 20 4 10 2 8 2 10 29 5 28 4 14 2 11 4 15 43 7 38 8 19 4 15 5 20 60 0 48 0 24 0 19 1 25 73 0 60 0 30 0 24 2 30 87 0 74 0 37 0 29 6 40 113 0 94 0 47 0 38 0 50 140 0 118 0 59 0 47 4 60 161 0 140 0 70 0 56 0 TOTALLY ENCLOSED PREMIUM EFFICIENCY MOTOR HP 208 3 60 FLA 230 3 60 FLA 460 3 60 FLA 575 3 60 FLA 5 14 6 13 0 6 5 5 2 7 5 22 0 20 0 10 0 8 0 10 28 5 25 0 12 5 10 0 15 42...

Page 22: ... 40 8 350 20 4 158 16 3 125 4 ZR19M3 55 2 425 51 5 425 25 8 187 20 6 148 105 6 ZR19M3 46 9 350 40 8 350 20 4 158 16 3 125 TABLE 3 ELECTRICAL DATA CONT COMPRESSOR DATA R 407C MODEL COMPRESSOR NOMINAL VOLTAGE QUANTITY PER UNIT MODEL 208 3 60 230 3 60 460 3 60 575 3 60 RLA LRA RLA LRA RLA LRA RLA LRA 50 4 ZR16M3 48 8 350 42 4 350 21 2 158 17 125 55 4 ZR16M3 48 8 350 42 4 350 21 2 158 17 125 60 4 ZR19...

Page 23: ... 70 75 80 85 90 95 Design Airflow Limits CFM min to max 10000 22500 12000 24000 14000 27000 14000 27000 14000 32000 14000 32000 14000 32000 14000 32000 18000 36000 18000 36000 Entering Wet Bulb Temp F min max 57 75 57 75 57 75 57 75 57 75 57 75 57 75 57 75 57 75 57 75 Entering Dry Bulb Temp F min max 68 90 68 90 68 90 68 90 68 90 68 90 68 90 68 90 68 90 68 90 Ambient Temp F without Low Amb option ...

Page 24: ... the air rushing back through the drainpipe will cause the condensate to build up in the drain pan As the unit continues to operate the accumulated water will be carried with the air stream overÞlling the drain pan causing possible water leaks into the supply duct and or causing water damage in the building A trap must be installed to prevent this condensate water build up see Figures 4 5 H must b...

Page 25: ...ace Sensor The space sensor if used can be used on either CV or VAV units The space sensor can be used for unit control in lieu of a thermostat Even if a thermostat is wired to the rooftop unit the space sensor will supply space air temperature values if connected When mounting a space sensor it should be located on an inside wall approximately 56 above the ßoor where it will not be subject to dra...

Page 26: ... draw of 20VA If the power requirements of the VAV boxes exceed this amount isolation relays must be field supplied and installed to prevent overloading the unit con troller power supply EVAPORATOR COIL FACE DAMPER An evaporator coil face damper is only used on units built with the Flexsys option The damper is designed to shut off airßow to the top section of the evaporator coil when only one comp...

Page 27: ...rnet Protocol Ethernet BACnet MSTP RS485 and LON These options require the appli cation of an additional communication board to the Primary Unit Controller See Figure 6 DIRTY FILTER SWITCH On units with a dirty Þlter switch option an adjustable differential pressure switch is installed to monitor the pressure drop across the Þlters When the pressure drop across the Þlters exceeds the setting of th...

Page 28: ...V 15V 15V 15V 15V 15V 15V 15V AO AO C OC OC G P R X XD XD R Y1 Y1 Y2 Y2 W1 W1 W2 W2 G OCC OCC SD SD P C 15V 15V 2AI1 2AI1 2AI1C 2AI1C 2AI2 2AI2 2AI2C 2AI2C 2AI3 2AI3 2AI3C 2AI3C 2AI4 2AI4 2AI4C 2AI4C 2AI5 2AI5 2AI5C 2AI5C 2AI6 2AI6 2AI6C 2AI6C 15V 15V JB JB JC JC JA JA N2G N2G N2N N2N N2P N2P TB2 TB2 RJ11 6 RJ11 6 4 C CABLE 4 C CABLE 100 100 SD SD PA PA PB PB PC PC JE JE SELECTOR SWITCH SELECTOR S...

Page 29: ...ISPLAY DISPLAY LANGUAGE KIT LANGUAGE KIT KEYPAD DISPLAY PANEL KEYPAD DISPLAY PANEL 15V 15V 15V 15V 15V 15V 15V 15V AO AO C OC OC G P R X XD XD R Y1 Y1 Y2 Y2 W1 W1 W2 W2 G OCC OCC SD SD P C 15V 15V 2AI1 2AI1 2AI1C 2AI1C 2AI2 2AI2 2AI2C 2AI2C 2AI3 2AI3 2AI3C 2AI3C 2AI4 2AI4 2AI4C 2AI4C 2AI5 2AI5 2AI5C 2AI5C 2AI6 2AI6 2AI6C 2AI6C 15V 15V JB JB JC JC JA JA N2G N2G N2N N2N N2P N2P TB2 TB2 RJ11 6 RJ11 6...

Page 30: ...yield different MCA minimumcircuitampacity andMOP maximum overcurrent protection MCA and Overcurrent Pro tection Device Data is supplied on the unit data plate Also refer to Table 3 Electrical Data The following calculations apply to electrical data for the rooftop unit All concurrent load conditions must be considered in the calculations and you must use the highest value for any combination of l...

Page 31: ...N E C Section 440 34 4 Maximum Dual Element Fuse size is based on U L Standard 1995 Section 36 15 N E C Section 440 22 5 Use copper conductors only 6 On units with an optional disconnect switch the supplied disconnect switch is a Disconnecting Means as defined in the N E C Section 100 and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting ...

Page 32: ...rd 1995 Section 36 14 N E C Section 440 34 4 Maximum Dual Element Fuse size is based on U L Standard 1995 Section 36 15 N E C Section 440 22 5 Use copper conductors only 6 On units with an optional disconnect switch the supplied disconnect switch is a Disconnecting Means as defined in the N E C Section 100 and is intended for isolating the unit from the available power supply to perform maintenanc...

Page 33: ...t Fuse size is based on U L Standard 1995 Section 36 15 N E C Section 440 22 5 Use copper conductors only 6 On units with an optional disconnect switch the supplied disconnect switch is a Disconnecting Means as defined in the N E C Section 100 and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting This disconnect switch is not intended to ...

Page 34: ...r must be routed to the location in the building or ductwork where a con stant pressure is desired Both the duct static transducer VAV only and optional building pressure transducer are mounted behind the left hand damper door All wir ing from the transducers is factory installed Duct Static Transducer Plastic tubing 3 16 ID must be run from the high pressure tap of the transducer to a static pres...

Page 35: ...mounted air handling units generate some sound and vibration that may or may not require some special treatment of the air conditioned space The noise generated by the air handling unit is dependent on the speed of the fan the amount of air the fan is moving the fan type and the static efÞciency of the fan In ap plications where sound and vibration transmissions may be objectionable good acoustica...

Page 36: ...equirement can lead to compressor damage and voiding of the compressor warranty CHECKING THE SYSTEM PRIOR TO INITIAL 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...

Page 37: ...pump in one direction Therefore it is nec essary to verify proper rotation at unit start up Op eration of the compressor in the reverse direction will not produce any capacity and cause the compressor to cycle on internal overload Operating the compressor in reverse for extended periods can result in failure of the compressor To verify proper rotation monitor the suction and discharge pressures of...

Page 38: ...d s composition constantly changes between bubble point and dew point Because of this only liquid refrigerant should be used when adding charge to the unit The only exception would be if the entire contents of a refrigerant cylinder were added at one time Always charge with liquid when add ing 407C refrigerant Failure to do so will compromise the properties of the refrigerant being added to the ro...

Page 39: ...5 9 102 201 8 104 207 7 106 213 8 108 220 0 110 226 4 112 232 8 114 239 4 116 246 1 118 252 9 120 259 9 122 267 0 124 274 3 126 281 6 128 289 1 130 296 8 132 304 6 134 321 5 136 320 6 138 328 3 140 337 3 142 345 8 144 354 5 146 363 3 148 372 3 150 381 5 152 390 8 154 400 3 156 410 0 158 419 8 160 429 8 Temperature F Pressure PSIG 0 24 0 2 25 6 4 27 3 6 29 1 8 30 9 10 32 8 12 34 7 14 36 7 16 38 7 1...

Page 40: ...0 90 99 22 8 4 195 91 101 24 6 6 200 93 102 26 3 9 205 95 104 28 1 11 210 96 105 30 1 13 215 98 107 32 3 15 220 99 108 34 5 17 225 101 110 36 7 19 230 102 111 38 9 21 235 104 113 40 11 23 240 105 114 42 13 25 245 107 116 44 15 26 250 108 117 46 16 28 255 110 118 48 18 30 260 111 120 50 20 31 265 112 121 52 21 33 270 114 122 54 23 35 275 115 123 56 24 36 280 116 125 58 26 37 285 118 126 60 27 39 29...

Page 41: ...s Verify the evaporator distributor tubes do not have bare copper touching each other or are against a sheet metal edge If you are leak checking a unit charged with R 407C make sure the leak test device is capable of sensing refrigerant R 407C If the unit is functioning satisfactorily during the initial operating period no safeties trip and the unit controls are functioning properly the rooftop un...

Page 42: ...osed there will be a 30 sec ond purge period the igniter will again energize and gas valve will open for 7 secs there will be 3 tries for ignition after 3 tries the control will lock out The control will also restart the process if the rollout switch es 2 switches located above the burners opened and have been reset indicating burning inside the burners and or outside of the heat exchanger tubing ...

Page 43: ...43 YORK INTERNATIONAL 3 FORM 100 50 NOM1 604 THIS PAGE LEFT BLANK INTENTIONALLY ...

Page 44: ...n system If this occurs an oil sample should be taken and analyzed If con taminations are present the system must be cleaned to prevent compressor failure This can be accomplished through the installation of oversized suction and liquid line driers The driers may have to be changed several times to clean up the system depending on the degree of contamination Never use the scroll compressor to pump...

Page 45: ...be replaced 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 ...

Page 46: ... or overload blower and motor bearings shortening their life expectancy A belt ten sioned too tightly can overload the motor electrical causing nuisance tripping of the motor overloads and or motor failure and or shaft failure 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 ...

Page 47: ...ce of the rotating assembly Proceed with the following steps 1 Disconnect all duct work or guards attached to the blower housing to permit unobstructed access 2 Remove the cut off plate attached at the discharge or blast area of the blower housing 3 Thoroughly clean the shaft of all grease and rust inhibitor Be careful not to contaminate the bearing grease Use emery cloth to remove all rust or the...

Page 48: ...unting Details 1 Check the shaft it should be straight free of burrs and full size Be sure the bearing is not seated on a worn section of shafting 2 Make certain any set screws are not obstructing the bearing bore 3 Align the bearing in its housing and slide the bearing into position on shaft never hammer the ends of the inner race If necessary use a brass bar or pipe against the inner race to dri...

Page 49: ...ic Type An eccentric self locking collar is turned and driven with a punch in the direction of shaft rotation to lock the bearing inner ring to the shaft See Figure 18 When the eccentric collar is engaged to the cam on the bearing inner ring and turned in direction of rotation it grips the shaft with a positive binding action The col lar is then locked in place with the setscrew provided in the co...

Page 50: ...gement of locking collar and tightness of set screw s When replacing split bearings refer to manufacturer s instruction provided with the bearing It is extremely important to ensure that proper radial clearances are observed between the roller bearings and outer face Failure to make proper adjustments will cause premature failure of the bearing TABLE 9 SET SCREW TORQUE FIG 21 SPLIT BEARING 00536VI...

Page 51: ...e started TABLE 10 FOUR OR SIX COMPRESSOR LOGIC STAGING UP 5 Stage Logic 1 Compressor 1A or 1B with shortest totalized run time and expired ASCD 2 Other compressor from System 1 Wait for ASCD to expire if not expired 3 Compressor 2A 2B 3A or 3B with shortest totalized run time and expired ASCD 4 Other compressor from System 2 or 3 with shortest run time and expired ASCD 5 Other compressor from Sys...

Page 52: ... or electric heat the Supply Fan will continue to run until the SAT is less than 100 F CV Operation For CV operation The Supply Fan will be ON whenever the G input from the Thermostat is present The Supply Fan will stay ON when the G input is no longer present to satisfy the Overrun requirement If the unit is conÞgured to use a space sensor the Supply Fan will be ON whenever Heating or cooling is ...

Page 53: ...n all functions unless an exception for a speciÞc func tion is speciÞed 5 TABLE 14 TIMEOUTS AND DELAYS ASCD Anti Short Cycle Delay Number Timeout or Delay Description 1 ASCD for cooling This minimum OFF time delay will not allow any compressor to turn on unless it has been off for 5 minutes except when ASCD override is ON 2 ASCD for Cooling SAT Alarm This will not allow any compressor to turn ON a...

Page 54: ... must also be con Þgured for the number of stages The Hot Water and Steam options use a modulating valve that varies the heating capacity based on the load A Modulating Gas Heat option is also available When Modulating Gas Heat is installed the unit is conÞgured for Hot Water W1 Active Only Staged Heat One half of the total number of stages will be energized See Table 15 W1 Active Only Modulating ...

Page 55: ...arted based on the calculation method in Figure 22 PI gain values are to be determined by such that all compressors are on within 28 minutes with a 10 F space temperature error or 42 minutes for a 6 compressor system with a 10 F space temp er ror When the duty cycle reaches 100 the PI algorithm reaches a High Saturation state and a saturation time delay expires the modulated compressor stops cycli...

Page 56: ...o either the Unoccupied Heating Setpoint or the Occupied Heating Setpoint based on the Occupied Unoccupied state of the unit i e Occ Unocc Input or Internal Scheduling FIG 24 CV SPACE SENSOR STEPPED HEAT ALGORITHM LD06555 Heat Step Stays OFF Heat Step Stays ON OFF Time ON Time On Time minutes Min OFF Time 6 minutes 100 High Saturation Output of Cooling Zone Temp Control PI Low Saturation 0 Min ON ...

Page 57: ...r supply fan setting of the parameter Fan ON mode with the Sensor Option determines if the supply fan is ON continuously or is in Auto mode i e goes off when space is satisfied Economizer damper at programmed min position Heating is controlled by a PI algorithm that controls staging of heat stages and modulates duty cycle of the highest numbered running heating stage If hydronic heat or modulating...

Page 58: ...escribed in the following sections The SATcontrol algorithm for cooling is described in the following sections The Supply Fan is Controlled as described in the Fan Controlled to maintain the Duct Static Pres sure setpoint when cooling or heating is ON ON and controlled for heating or cooling when the Thermostat G output is ON Ramped up to its operation condition using its variable output control w...

Page 59: ...Space Sensor function For hydronic heating The SAT is controlled to the 2nd Stage Hydronic Heat Setpoint The Heat 1 output of the controller is set to control HIGH during heating Occupied Cooling With A Space Sensor The programmable parameter VAV Operation with Thermostat must be set to OFF and Space Sensor signal must be reliable The SAT setpoint for cooling is the VAV Cool Low Temp or VAV Cool H...

Page 60: ...tion or Economizer Opera tion when economizer is not suitable is as described in Figure 29 LD06559 LD06560 Compressors staged OFF ON OFF Compressors staged ON VAV Control Offset Selected SAT Setpoint VAV Control Offset SUPPLY AIR TEMPERATURE F FIG 29 COMPRESSOR STAGING FOR VAV COOLING Sequence of Operation The setpoint is as determined for the space temperature condition and is either the VAV Cool...

Page 61: ...ed with electric gas steam or hydronic heat Heat Enable ON Economizer Enable ON Conditions are suitable for Economizer operation Supply Air Tempering Enable ON All compressors OFF Supply Air Tempering is a continuation of the VAV cooling operation when the Outdoor Air Temperature is below the SAT setpoint where heating is used to maintain ventilation operation Supply Air Tempering With Proportiona...

Page 62: ...ace Sensor Control algorithm is same as for Morning WarmUp cycle RAT is controlled to a programmed setpoint w 2 F deadband when space temperature drops 2 F below VAV setpoint for SAT reset During heating supply fan meets duct static requirements If hydronic heat SAT controlled to 2nd stage hydro heat setpoint Both space and RAT must be below setpoints An external unoccupied signal initiates this m...

Page 63: ...ill be used The 10 F offset represents the high est outdoor air temperature that the DX cooling can reliably reduce to the SAT setpoint Outside Enthalpy Method Economizer will be suitable when OA Enthalpy Outside Enthalpy Number parameter value and OAT SAT setpoint 10 F A2 F hysteresis about the SAT setpoint 10 F will be used A 1 BTU LB hysteresis about the Outside Enthalpy Number will be used Dif...

Page 64: ...e when the SATsetpoint is set very close to or even below the temperature set for Cooling Lockout on OAT a relatively unusual case If the OAT then increases above the Cooling Lockout on OAT parameter value while the call for several com pressors exists the compressors in this case and only in this case will turn ON simultaneously Economizer Loading Operation Economizer Loading Operation will be us...

Page 65: ... be used to ensure that the airßow sensor or sensors are calibrated at zero airßow The Altitude setting of the unit s location will be used to provide ad ditional measurement accuracy Calibration parameters will be used for the airßow station type with the airßow station area with the altitude correction parameter to calculate airßow Because the installation of the rooftop unit with its air distri...

Page 66: ...rranged Normally Open 0V Open 10V Closed See Figure 32 Sequence of Operation AREA AND K FACTOR When an Air Measuring Station is installed from the factory the following parameters should be set at the factory prior to the shipment of the unit The following parameters are found under the CONFIGURATION key of the OptiLogic control AMS 1 Area AMS 1 K Factor AMS 2 Area AMS 2 K Factor Table 18 lists th...

Page 67: ...r 1 outdoor air to maintain the Minimum Flow Setpoint When the Minimum Flow Setpoint cannot be achieved with Damper 3 Return Air Damper 100 open the RA Damper will be modulated closed so that the Minimum Flow Setpoint is achieved The maximum closure of Damper 3 will be that position resulting in the maximum allowed airßow velocity through the AMS and Damper 1 or 1500 fpm Divide the airßow by the a...

Page 68: ...Damper 2 is continuously closed for 5 minutes The following Þgure illustrates the control functions FIG 34 MINIMUM FLOW MEASUREMENT OPTION ECONOMIZER SEQUENCE Full Flow Measurement If the ConÞguration setting Airflow Measurement Con fig is set to 2 full then the unit will be equipped with full ßow measurement equipment This arrangement consists of one AMS sized for 100 total unit ßow The following...

Page 69: ...CFM OA Air Flow CFM 0 CFM LD06567 Control Range for Economizer Operation Open 100 OA Damper Position Closed 0 Min Outside Airflow OA Flow CFM Position to Meet OA Setpoint LD06568 Demand Ventilation Demand Ventilation is a control sequence that can in crease or decrease the amount of ventilation introduced to the building based on the level of contaminate in the conditioned space Typically this is ...

Page 70: ...l lowing constraints The maximum OA Damper position called for by De mand Ventilation operation will be equal to the Max DV Multiplier OA Damper Min Pos 1 The Max DV Multiplier parameter can be set for a mini mum of 1 which results in a damper position the same as the minimum position to 4 which results in a damper position 4 times the minimum position LOW AMBIENT OPERATION With the standard unit ...

Page 71: ...mary Unit Controller will read the condensing pressure perform the control logic and command the MOD UNT to increase or decrease the output to the VFD as required The following Þgure illustrates the control logic required for this control loop LD06574 100 Output to VSD 0 15 psi Discharge Pressure Control Setpoint 15 psi Condensing Pressure LD06575 Condenser Fan MOD DCU N2 MOD UNT Condensing Pressu...

Page 72: ... failure of the N2 communication with the MOD UNT a fault will be generated and mechanical refrigeration below the Low Ambient Lockout Temperature will not be allowed The MOD UNT will continue to operate the condenser fans based on the measured discharge transducer input as last commanded by the DCU Unreliable Transducer If the discharge pressure becomes unreliable on any system the controller wil...

Page 73: ...he Building Pressure reaches or exceeds the Building Pressure setting plus the Exhaust Cntrl Offset the Primary Unit Controller will energize the constant volume Exhaust Fan The Exhaust Fan will remain energized until the Building Pressure drops to or below the Building Pressure setting minus the Exhaust Cntrl Offset Figure 41xxx illustrates this operation FIG 40 OAD POSITION CONTROL LD06577 Exhau...

Page 74: ... VFD exhaust fan will still be turn On Off based on the programmed position of the exhaust damper even though a damper is not installed but once the VFD ex haust fan is on it will vary its speed and airßow based on the Building Pressure This option requires the following Economizer Enable ON Supply Fan ON VFD exhaust fan Building Pressure Transducer The VFD exhaust fan will turn on and off based o...

Page 75: ...NTILATION OPERATION Comfort Ventilation is applicable in CV Constant Vol ume unit conÞgurations where Space temperature is sensed through a Thermostat or Space Sensor Economizer is installed Comfort Ventilation will operate when Comfort Vent Mode is ON Occupied is ON occupancy detected There is no call for heating or cooling due to the Thermostat or Space Sensor If Demand Ventilation and or Outdoo...

Page 76: ...fort Vent High SAT setpoint If the SAT decreases below the Comfort Vent Low SAT setpoint for more than 5 minutes If cooling is ON destage a compressor At 5 minute intervals repeat this test until all cooling stages are OFF If cooling is OFF stage a heating stage ON At 5 minute intervals repeat this test until SAT is above the Comfort Vent Low SAT setpoint As the heating stages or compressors are s...

Page 77: ...urn to normal operation RETURN FAN OPERATION The following is an explanation of the different modes of operation for the return fan option No Outdoor Air 100 Return Air VFD Supply Air Fan No Exhaust This conÞguration would be for applications where the supply fan performance cannot meet the total static re quirement of the duct system This allows the external static pressure to be split between th...

Page 78: ...erences and Limits in the VFD program Refer to Installation Operation Maintenance Form 100 40 N04 for additional information The supply air VFD is controlled by the duct static transducer The supply air blower and return air fan will always be energized together As the pressure in the return air section becomes more negative the return air fan will speed up As the pressure in the return section in...

Page 79: ...l supply airßow rates The supply air VFD is controlled by the duct static transducer The supply air blower and return air fan will always be energized together As the pressure in the return air section becomes more negative the return air fan will speed up As the pressure in the return section increases above the setting the return air fan will slow down The return air damper will never go to a to...

Page 80: ...lways modulate to full Þre before any additional stages can be brought on When additional stages are required the modulating heat section will go to minimum Þre and the next stage of heating will be brought on If there continues to be a demand for additional heat the modulating heat section re modulates to high Þre before any additional stages can come on During a decrease in heating demand the mo...

Page 81: ... OPERATING CONTROLS The following information describes the sequence of operation for the compressor unit control components The information below describes System 1A and 1B compressor operation This same information can also be applied to System 2A and 2B and System 3A and 3B When the Primary Unit Controller identiÞes a need for compressor operation it energizes the Cooling Change Over Relay C O ...

Page 82: ...rs shall start at zero Counter 1 shall Increment by 1 any time a trip occurs when either one or two compressors on the tripped compressor system are on Be reset to zero counts if the compressor system status input is present for one cumulative hour of compressor operation following the last compres sor safety trip Be reset to zero if the power to the Primary Unit Controller is removed and reestabl...

Page 83: ...used to reset the supply air temperature A modulating damper is used to vary the amount of Return Air By passed from the Return air Duct to the fan section of the rooftop unit The damper is direct acting 0 VDC bypass damper 100 open 10 VDC bypass damper closed During Unoccupied Modes of operation and dur ing Morning Warmup the bypass damper is com manded 100 open 10 VDC During the Occupied Mode of...

Page 84: ...arted or stopped Immediately after a compressor is started and stopped the By pass Damper will be Þxed by the Primary Unit Controller The Primary Unit Controller will not open or close the By pass Damper until the SAT temperature fall below the RAT If the SATtemperature is above the RAT the By pass Damper shall remain Þxed By pass Percentage Setpoint By pass Percentage Setpoint 2 5 0 By pass Perce...

Page 85: ...nctionkeys mentionedinthepreviousparagraphs allow the user to jump directly to the associated menu items without scrolling through every menu display HISTORY MENU NAVIGATION The OptiLogic Control Panel stores a maximum of 12 history snapshots These snapshots are the unit parameters and setpoints stored in memory at the time the unit shut down on a fault In the History menu the navigation of the me...

Page 86: ...ave been detected TROUBLE a fault that does not cause unit shut down has been detected ALARM a fault that causes the unit to be shut down has been detected Refer to the section on Service and Troubleshooting for fault alarm and trouble description Line 2 Date dd mon year Line 3 Time hh mm ss a p Line 4 Day DDD day abbreviation The Date and Time are displayed and if required changed in this display...

Page 87: ... Status ON OFF Line 4 Cntrl Output XXX Line 2 Comp System X Line 3 Status NORMAL SAFETY TRIP Line 4 Comps ON A B BOTH NONE Display 7 repeats for compressor systems 2 and 3 If the unit is a 4 stage 2 system unit system 3 data will show N A for Status and Comps ON Line 2 Hydronic Heat System Line 3 Cntrl Output XXX Line 4 Freezestat NORMAL SAFETY TRIP Line 2 Staged Heat System Line 3 Stages ON X Lin...

Page 88: ...ns are suitable Inactive Economizer operation enabled and conditions are not suitable Line 2 Ventilation System Line 3 Type Show Current ConÞguration Line 4 Status Unocc OFF Occ ON N A Fault Line 3 displays one of the following conÞgurations None Line 4 Status N A Min Dampr Pos Minimum damper position Min Airßow 25 75 Airßow Full Airßow Line 2 Filter Status Line 3 Status NORMAL REPLACE Line 4 RA B...

Page 89: ... Operation Data group of display items will give the user access to the units current operating pa rameters The Operation Data group of display items is view only and will require no password Starting with the Þrst display item the Operation Data display items are as follows Line 2 Sys X Compressors Line 3 Comp A ON OFF FAULT Line 4 Comp B ON OFF FAULT Line 2 Sys X Compressors Line 3 Suc Press XXX...

Page 90: ...alFlow 21210 CFM Setpt 20000 OPERATION DATA Demand Ventilation Sensor XXXX ppm Setpt XXXX ppm Line 2 Space Temperature Line 3 Temp XX X F 0 0 Line 4 Setpt XX X F 0 0 Line 2 Building Pressure Line 3 Press X XX inwg 0 0 Line 4 Setpt X XX inwg 0 0 Line 2 Outside Air Damper Line 3 Position 1 XXX Line 4 Min Pos XXX Line 2 Outside Air Damper Line 3 Position 2 XXX Line 4 Position 3 XXX Line 2 Outside Air...

Page 91: ...ir Active Byp XXX Byp Setpt XXX OPERATION DATA Rooßink Status Active Smoke Purge Mode 0 Line 2 Flexsys Supply Temp Line 3 Temp XX X oF 0 0 Line 4 Setpt XX X o F Line 2 Flex RH XXX 0 0 Line 3 Dewpoint XX X o F Line 4 Slab Temp XX X o F 0 0 Line 2 Flexsys Bypass Dmpr Line 3 Position XXX 0 0 Line 4 Line 2 Flexsys Bypass Air Line 3 Active Byp XXX 0 Line 4 Byp Setpt XXX 0 Line 2 Rooßink Line 3 Status A...

Page 92: ... AND OPTIONS This format will list the setpoint description on Line 2 with Setpoint XXXX on Line 3 Line 4 is always blank except for Flexsys UNIT SETUP NAVIGATION The Unit Setup key moves the display to the Þrst item of the Unit Setup group The Unit Setup group of dis play items allows the user to view and modify general Unit Setup data All Unit Setup parameters show data however not all Unit Setu...

Page 93: ...red in sequence and explained in the sec tion PARAMETER DESCRIPTIONAND OPTIONS SETPOINTS This format will list the Unit Setup Display Group on Line 2 with Description on Line 3 Line 4 displays setting XXXX Table 20 details the information that is displayed with each display item of this function group which includes the text for Line 3 units used with the associated item default value value range ...

Page 94: ... viewed changed The table below illustrates the four subgroups under ConÞguration CONFIGURATION Heat Cool System Freezestat Setting OFF Pressing the Change Enter key at any of these days will prompt the user for a password refer to section on Password Once the password is entered the start and stop times can be changed by indexing the digits up and down with the Up and Down keys or moving between ...

Page 95: ...than the other compressors Four six compressor starts Supply and exhaust fan runtimes can be set to zero but cannot be reset to a speciÞc value When the service key is pressed the following is displayed Display shows accumulated compressor run time Line 2 Sys X Comp Runtimes Line 3 Comp A XXXXX X hrs Line 4 Comp B XXXXX X hrs Display repeats for compressor systems 1 2 and 3 If the unit is conÞgure...

Page 96: ...X Safety Chain 1 2 3 Line 3 Status Tripped NORMAL Line 4 Blank This display shows the entry made by the Air Balancer if a manual air balance is done Line 2 AMS 1 Line 3 Balancer Calculated Line 4 Airßow XXXXX cfm The Line 4 value is entered as the result of an airßow balancer s measurement of the unit airßow A default value of 1 will be shown whether or not this function is used Editing the value ...

Page 97: ...f the airßow balancer s calibration of theAirßow Measurement Sta tion 1 A default value will be shown whether or not this function is used Editing the value requires the entry of a password of the appropriate level This function is described under Units Sequence and Operation and PARAMETER DESCRIPTION AND OPTIONS This display indicates the software revision Line 2 Application Line 3 Revision X X L...

Page 98: ...y line 2 Display Line 3 display shows the following see Service section for fault response details None No fault is recorder for History XX Alarm Afault has been detected that results in the unit shutting down Trouble A fault has been detected that does not result in the unit shutting down Clear One of the following conditions has oc curred A fault has been detected on an enabled sensor failed and...

Page 99: ...r Fault Trouble OA Flow Sensor Fault Trouble OAH Sensor Fault Trouble OAT Sensor Fault Trouble RA Byp Filter Fault Trouble RAH Sensor Fault Trouble RAT Sensor Fault Trouble SensConsist Fault 1 Trouble SensConsist Fault 2 Trouble Space Control Fault Trouble Space Sensor Fault Trouble Suction Press Fault Trouble Sys1 Safety Trip Trouble Sys2 Safety Trip Trouble Sys3 Safety Trip Trouble Tstat Cooling...

Page 100: ...Þrst stage cooling The control will also maintain this SAT when operating in the VAV stand alone mode with the economizer active If OA SAT Reset is enabled and the outdoor tempera ture is below the VAV SP for SAT Reset the Primary Unit Controller will control to this temperature VAV Cool Low Temp The control will maintain this SAT when operating in a VAV mode with a Thermostat or Network Commu nic...

Page 101: ...e Hydro Heat 2nd Stage When the Hydronic Heat or Modulating Gas Heat option is enabled the control will maintain this SAT setpoint during a call for second stage Heating by modulating the Hot Water Valve or Gas Heat Section OA Damper Min Pos 1 This tells the control what the minimum Outdoor Air Damper Economizer position is during the occupied mode and when the Supply Fan is at full ßow This value...

Page 102: ...Space Sensor use or The Space Sensor fails If the Space Sensor fails the control will use the RAT sensor as a backup if available If the sensor is not connected or fails a fault will be set The fault can be turned off by turning off this option If the option is set to OFF and a sensor is con nected the system will use the sensor input but will not indicate a failure if the sensor becomes inoperati...

Page 103: ...s moving toward the Setpoint the timer is set to zero Low Ambient Operate When this parameter is ON the control will apply Low Ambient Operation when the outside air temperature meets the speciÞed conditions If this setting is set to OFF Low Ambient Operation will not be used If low ambient operation is not enabled mechanical refrigeration will be inhibited at ambient temperatures below the Coolin...

Page 104: ...F OA SAT Reset This setting will tell the control to reset the SAT setpoint on VAV units based on the Outside Air tem perature instead of Space temperature Outside Air SAT reset will only be allowed when the setting VAV Operation With Thermostat is set to OFF This func tion can be used for Space Sensor and Stand Alone operation SAT Temper Enable When SAT Tempering Enable is ON the control will use...

Page 105: ...ed the network can be pro grammed to share the OAT and OAH sensed values with other controllers connected to the network or to receive these values from the network RAH Sensor Enable This tells the control that a return air humidity OAH sensor is present and enabled for use The control will self conÞgure for enthalpy control based on the sensor availability as described above in above in Outside A...

Page 106: ... Altitude is the altitude of the unit above sea level This value is used only when an Air Measurement Station is installed and Outdoor Airßow Control is enabled The altitude value is to be entered within 1000 feet of actual WARM UP PURGE Morning Warm Up When this option is turned ON the Morning Warm Up feature is enabled and can be started Morning Warm up is an option in Networked BAS applications...

Page 107: ...ek plus a holiday schedule One start and stop time is allowed Holiday Schedule Holiday dates are entered into the Holiday Schedule for use in time programmed operation Up to 16 dates are allowed Dates are assumed to be for the current year CONFIGURATION KEY PARAMETERS These setpoints are intended to be programmed at the factory and should not be changed by field personnel GENERAL Unit Type This te...

Page 108: ...nstalled on system 1 and system 2 3 indicates that a pressure transducer package is installed on system 1 2 and 3 The purpose of this setting is for establishing a fault status This setting will tell the control what analog inputs should receive a signal from installed pressure transducers For example if there are pressure trans ducers installed on system 1 only then the control will ignore the ot...

Page 109: ...is setting is pro portional control based on building pressure and modulates either a discharge damper on a single speed exhaust fan or modulates a Variable Fre quency Drive VFD on a variable speed exhaust fan based on the static pressure within the building or space The control output is the same for either case Economizer Installed This setting tells the control that there is Economizer hardware...

Page 110: ...ot installed SERVICE KEY PARAMETERS These parameters are normally view only but can be accessed by service personnel to make changes to run timers such as would be the case if a compressor or fan motor was replaced Sys X Comp Runtimes The compressor runtimes should never be changed even when the compressor is changed out The control uses the compressor runtimes to control the staging of the compre...

Page 111: ...layed on the top line Now pressing the NEXT key advances from the Unoccupied Heating Setpoint to the Unoccupied Cooling Setpoint and will result in the display shown below When the CHANGE ENTER key is pressed you will enter into the edit mode to change the Unoccupied Cooling Setpoint and the current value of 86 F will blink if a password was not previously entered you will be prompted to enter the...

Page 112: ...C display window will show the level of password required and 5555 as place holders for the password to be entered The cursor will be on the left most 5 The password will be entered by moving the cursor between the digits of the password with the Next or Back keys and changing the numbers 0 9 with the Up Arrow and Down Arrow keys When all numbers are entered the user will press the Change Enter ke...

Page 113: ...st Config 0 0 3 Configuration 20 Economizer Installed NO YES NO Configuration 21 Airflow Meas Config None None Full Minimum 1 4 3 4 Configuration 22 AMS 1 Area sq ft 3 33 0 00 24 00 Configuration 23 AMS 1 K Factor 0 75 0 500 1 000 Configuration 24 AMS 2 Area sq ft 10 9 00 18 00 Configuration 25 AMS 2 K Factor 0 75 0 500 1 000 Configuration 26 Duct Sensor Hi Limit inwg 5 2 5 5 0 Configuration 27 Ev...

Page 114: ...ime min 60 min 0 240 min Unit Setup 64 Space Setpt Offset F 3 F 0 5 F Unit Setup 65 Fan ON With Sensor ON ON or OFF Unit Setup 66 RAT Sensor Enable OFF ON or OFF Unit Setup 67 Space Temp Alrm Diff F 5 F 0 25 F Unit Setup 68 Space Temp Alrm Time min 60 min 0 120 min Unit Setup 69 Low Ambient Operate OFF ON or OFF Unit Setup 70 Sens Consist Enable OFF ON or OFF Unit Setup 71 SAT Control For Cool OFF...

Page 115: ... Multiplier 1 25 2 Jan Unit Setup 103 Altitude Ft 1000 0 10000 Ft Unit Setup 104 Morning Warm Up OFF ON or OFF Unit Setup 105 Max Warm Up Time min 120 min 0 240 min Unit Setup 106 Pre Occupancy Purge OFF ON or OFF Unit Setup 107 Purge Schedule 4am 5am all days Daily Holiday hh mm start end time Unit Setup 108 Purge OAT High Limit F 85 0 110 F Unit Setup 109 Purge OAT Low Limit F 55 0 110 F Unit Se...

Page 116: ...on designated by J and the pin number located on the inside of the board diagram The input or output designations are shown on the outside of the Þgure Table 32 lists the description of the various inputs and outputs and the respective connections Figure 50 shows the Primary Unit Controller architecture as it relates to the on board relays for the binary outputs and the associated LED s the locati...

Page 117: ...3 4 5 6 7 8 9 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 P23 P139 P1 P2 P25 B I N A R Y I N P U T S BI 14 BI R BI 13 BI 12 BI R BI 11 BI 10 BI R BI 9 BI 8 BI R BI 7 BI 6 BI 5 BI 4 BI R BI 3 BI 2 BI R BI 1 24VAC COM 24V AC 15 VDC 15 15 A N A L O G I N P U T S TB 2 J 1 P1 J 2 7 8 9 10 N 2 N 2 N 2 G N D N 2 S H D N2 R DU R S 232 E THE R NE T 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 ...

Page 118: ...GE HE AT COOL S UPPLY FAN HE AT R E LAY OUTPUT E XHAUS T FAN C O R E LAY CHANGE OVE R 5TH S TAGE HE AT COOL LE D LE D LE D ALAR M LE D E THE R NE T POR T R S 232 POR T DIS PLAY POR T N2 POR T Display Port N2 Port Hot Water S tat C hange Over R elay S tatus LOWE R R IG HT HAND C OR NE R OF MOD DC U S afety C K T 1 S afety C K T 2 S afety C K T 3 E mergency S top S moke P urge Air P roving S witch F...

Page 119: ...ch compressor circuit will be connected to the following binary inputs Compressor circuit 1 BI 1 Compressor circuit 2 BI 2 Compressor circuit 3 BI 3 High Pressure Switch settings are open 425 10 psig close 325 10 psig Low Pressure Switch settings are open 32 5 psig close 52 5 psig For normal operation the Compressor Circuit Status inputs must be present 24VAC to input During low ambient conditions...

Page 120: ...nterpret this input as follows Smoke purge required Smoke Purge 24VAC input present Smoke purge not required Smoke Purge 24VAC input not present When the Smoke Purge input has been continuously present for 5 seconds or more the control will Read the Smoke Purge parameter value If the Smoke Purge parameter value is zero no action is taken If the Smoke Purge parameter value is not zero All heating o...

Page 121: ...n the Freezestat input closes for 5 minutes HW hot water Thermostatic Switch Settings are open 35 4 2 close 47 4 2 Note This is an adjustable switch set 35 to 45 set at the factory to 35 F BI 15 Cool Heat Changeover Relay Status The Cool Heat Changeover Relay COR Status input is used to verify that the relays that route the ON OFF commands from the controller to the heating and cool ing equipment ...

Page 122: ... be used by the control to monitor and respond to unit temperatures pressures enthalpy etc The connection layout for the IO inputs outputs is shown in the Primary Unit Controller connection map in Figure 21 Notice that the Þgure shows the Jack connection designated by J and the pin number located on the inside of the board dia gram The input or output designations are shown on the outside of the Þ...

Page 123: ...ischarge pressure to a DC voltage The DC voltage is then sent to the unit controller where it can control head pressure with optional low ambient kit provide compressor unload ing and display discharge pressure on the OptiLogicTM display panel The transducer and wiring are factory installed Whenever an optional transducer package is supplied the transducer is wired to a factory supplied TABLE 26 D...

Page 124: ...o 5 volts dc Table 26 illustrates the DC volt output from the trans ducer for a given discharge pressure Suction Pressure Transducer The optional suction pressure transducer is located in common suction line of the tandem compressors for each refrigerant circuit The purpose of this transducer is to sense and convert the suction pressure to a DC voltage LOW AMBIENT OPTION CONDENSER FAN MOTOR VSD Th...

Page 125: ...RGE PRESSURE TRANSDUCER SYSTEM 3 OPTIONAL OUT COM EXC OUT COM EXC OUT COM EXC OUT COM EXC OUT COM EXC OUT COM EXC TO MOD DCU TB2 W55 W56 FIELD INSTALLED 2 1 5 3 4 W36 W23 W20 24O4 24O4C TO 2T XF MR FLEXSYS BYPASS DAMPER CONTROL W37 W38 6 7 8 CTB2 EVAP RESET TEMP FLEXSYS DIRTY FILTER SW TABLE 28 MONITOR AND CONTROL I O FOR MOD UNT CONTROLLER I O NAME ANALOG OR BINARY SIGNAL LEVELS APPL VALUE RANGE ...

Page 126: ...ination humidity temperature sensor has four terminals two for the hu midity sensor and two for the temperature sensor TABLE 29 HUMIDITY SENSOR OUTPUT Humidity Temperature Sensor Outside Return and Underfloor MIT The humidity temperature sensor is a combination sen sor that will output a 0 to 5 volt DC voltage in response to the relative humidity sensed The humidity sensor is used in conjunction w...

Page 127: ...signal to the respective actua tor Table 33 shows the analog outputs designated as AO1 through AO6 and the respective function Note the outputs are speed reference signals to he supply fan VFD exhaust fan VFD or exhaust damper damper ac tuators for outside air return air dampers air measuring dampers and heating valve The 0 to 10 volt DC output would be linear over the respective actuator range of...

Page 128: ... DCU CONNECTION FUNCTION R 24 VAC from controller R 24 VAC from controller Y1 COOL 1 TSAO Analog voltage Y2 COOL 2 TSAO Analog voltage W1 HEAT 1 TSAO Analog voltage W2 HEAT 2 TSAO Analog voltage G Not Used OCC Not Used SD Not Used P Not Used X Not Used C Common C Common from controller TABLE 32 THERMOSTAT INTERFACE BOARD CONNECTIONS ...

Page 129: ...e AI 13 IK RTD 50 to 250 ALL Mixed Air Temperature AI14 IK RTD 50 to 250 FLEXYS Slab Temperature AI15 IK RTD 50 to 250 FLEXYS Underfloor Humidity AI16 0 10V 0 TO 100 FLEXYS Compressor Circuit 1 Status BI 1 24VAC ALL Compressor Circuit 2 Status BI 2 24VAC ALL Compressor Circuit 3 Status BI 3 24VAC 70 90 TON UNITS Furnace Model 1 Status BI 4 24VAC GAS HEAT 1 MODULE Furnace Model 2 Status BI 5 24VAC ...

Page 130: ...ing Stage 4 BO 4 ALL Cooling Heating Stage 5 BO 5 70 90 TON UNITS Cooling Heating Stage 6 BO 6 70 90 TON UNITS Cool Heat Changeover Relay BO 7 ALL Supply Fan BO 8 ALL Exhaust Fan BO 9 POWERED EXHAUST VAV Heat Relay BO 10 VAV I O NAME INPUT OUTPUT TYPE SIGNAL LEVEL APP VALUE RANGE APPLICATION NOTES AI Analog Input BI Binary Input AO Analog Output BO Binary Output TABLE 33 INPUT OUTPUT TABLE CONTINU...

Page 131: ...liability according to the type of input connected and the range speciÞed The controller monitors all AI inputs to determine if the value at the input is within an acceptable range These values are listed in Table 28 The engineer ing units represented are also listed as applicable Temperature Inputs Temperature inputs will be monitored for reliability If the controller determines that the input is...

Page 132: ...ree Comp Safety Trips within one hour Cycle power on controller OR the corresponding Compressor Safety Trip Closes for 60 min 7 SAT Sensor Fault SAT sensor is not reliable SAT sensor is not reliable OpData Supply Air Temp Temp Thermostat Conflict Y1 OR Y2 ON AND W1 OR W2 ON Y1 OR Y2 ON AND NOT W1 OR W2 ON OR Y1 AND Y2 AND W1 AND W2 OFF MSAT Sensor Fault Mixed Supply Air Temp input is unreliable Mi...

Page 133: ...or greater than Cooling SAT Alarm setpoint AND all available compressors have been ON for 60 minutes SAT is less than the Cooling SAT Alarm setpoint Heating SAT Fault SAT is equal to or less than the Heating SAT Alarm setpoint AND all heating stages have been ON for at least 20 minutes SAT is greater than the Heating SAT Alarm setpoint Excess Cooling Fault Only one comp running AND SAT is less tha...

Page 134: ...ontrol SAT to VAV High Temp Setpoint OAH Sensor Fault Unit programmed to read OAH sensor AND OAH sensor is not reliable Unit reprogrammed to disable OAH sensor OR OAH sensor is reliable OpData OA RH OpData OA Enth RAH Sensor Fault Unit programmed to enable RAH sensor AND RAH sensor is not reliable Unit programmed to disable RAH sensor or RAH sensor is reliable OpData RA RH OpData RA Enth IAQ Senso...

Page 135: ...ne second Both compressors in the system remain OFF until the specified Reset When conditions are met If any system locks out any other available systems may operate 8 Both compressors in the system turn OFF for at least 10 minutes If any system turns OFF due to a trip any other available systems may operate 9 All trip counters are reset to zero after a power cycle to the controller Counter 1 for ...

Page 136: ...NSER FAN VFD REQUIRED ON CONDENSER FAN NO 2A WHEN UNIT IS EQUIPPED FOR LOW AMBIENT OPERATION WITH SYSTEM NO 2 9M OPTIONAL CONDENSER FAN WIRING CONDENSER FAN VFD REQUIRED ON CONDENSER FAN NO 1A WHEN UNIT IS EQUIPPED FOR LOW AMBIENT OPERATION WITH SYSTEM NO 1 7M R S T 3VFD V CONDENSER FAN NO 1A 7FU 7FU 7FU 1PTB 403 404 405 418 419 420 CONDENSER FAN NO 2A V 4VFD S T R 406 407 408 409 410 411 421 422 ...

Page 137: ... 168 153 160 165 166 164 163 162 161 157 158 159 154 156 155 150 152 151 147 149 148 143 145 144 146 141 140 142 112 136 137 139 138 134 133 135 129 130 132 131 126 128 127 119 122 124 125 123 120 121 117 118 116 113 115 114 105 109 111 110 106 107 108 102 103 104 100 101 REFER TO TRANSFORMER FOR CONNECTION DETAIL OPTIONAL 120V CONVENIENCE OUTLET KIT YORK P N 325 36142 011 200V UNITS YORK P N 325 ...

Page 138: ...FAN WIRING CONDENSER FAN VFD REQUIRED ON CONDENSER FAN NO 2A WHEN UNIT IS EQUIPPED FOR LOW AMBIENT OPERATION WITH SYSTEM NO 2 9M OPTIONAL CONDENSER FAN WIRING CONDENSER FAN VFD REQUIRED ON CONDENSER FAN NO 1A WHEN UNIT IS EQUIPPED FOR LOW AMBIENT OPERATION WITH SYSTEM NO 1 7M R S T 3VFD V CONDENSER FAN NO 1A 7FU 7FU 7FU 1PTB 403 404 405 418 419 420 CONDENSER FAN NO 2A CONDENSER FAN NO 3A V 4VFD S ...

Page 139: ...160 165 166 164 163 162 161 157 158 159 154 156 155 150 152 151 147 149 148 143 145 144 146 141 140 142 112 136 137 139 138 134 133 135 129 130 132 131 126 128 127 119 122 124 125 123 120 121 117 118 116 113 115 114 105 109 111 110 106 107 108 102 103 104 100 101 REFER TO TRANSFORMER FOR CONNECTION DETAIL OPTIONAL 120V CONVENIENCE OUTLET KIT YORK P N 325 36142 011 200V UNITS YORK P N 325 36142 012...

Page 140: ...ERATION WITH SYSTEM NO 1 7M R S T 3VFD V CONDENSER FAN NO 1A 1PTB 403 404 405 418 419 420 CONDENSER FAN NO 2A V 4VFD S T R 406 407 408 409 410 411 421 422 423 424 425 426 427 428 429 L1 A L2 A L3 A L1 B L2 B L3 B L3 B L2 B L1 B L3 A L2 A L1 A L3 A L2 A L1 A L3 A L1 A L2 A 420 419 418 425 426 424 1L2 1L1 1L3 FIELD SUPPLY CIRCUIT TO EARTH GROUND GND OPTIONAL SINGLE POINT NON FUSED DISCONNECT SWITCH ...

Page 141: ... 2FU 10M 9M 8M CONDENSER FAN NO 1B CONDENSER FAN NO 2A CONDENSER FAN NO 2B L1 B L2 B L3 B 428 429 427 L1 A L2 A L3 B L2 B L1 B L3 A 425 426 424 422 423 421 3M 4M 2M 1FU 1FU 7M 2CB 2OL CONDENSER FAN NO 1A COMPRESSOR NO 2A COMPRESSOR NO 2B COMPRESSOR NO 1B COMPRESSOR NO 1A L1 A L2 A L3 A 419 420 418 411 410 405 407 409 408 406 404 403 401 402 400 1CB 1OL 3CB 3OL 4CB 4OL 1M RETURN FAN MOTOR 2 NOTE VF...

Page 142: ...DENSER FAN NO 1A WHEN UNIT IS EQUIPPED FOR LOW AMBIENT OPERATION WITH SYSTEM NO 1 7M R S T 3VFD V CONDENSER FAN NO 1A 1PTB 403 404 405 418 419 420 CONDENSER FAN NO 2A CONDENSER FAN NO 3A V 4VFD S T R V 5VFD S T R 406 407 408 409 410 411 412 413 414 415 416 417 421 422 423 424 425 426 427 428 429 L1 A L2 A L3 A L1 B L2 B L3 B L3 B L2 B L1 B 434 435 433 L3 A L2 A L1 A 431 432 430 L3 B L2 B L1 B L3 A...

Page 143: ...161 157 158 159 154 156 155 150 152 151 147 149 148 143 145 144 146 141 140 142 112 136 137 139 138 134 133 135 129 130 132 131 126 128 127 119 122 124 125 123 120 121 117 118 116 113 115 114 105 109 111 110 106 107 108 102 103 104 100 101 REFER TO TRANSFORMER FOR CONNECTION DETAIL OPTIONAL 120V CONVENIENCE OUTLET KIT YORK P N 325 36142 011 200V UNITS YORK P N 325 36142 012 230V UNITS YORK P N 325...

Page 144: ... AND 1B RESPECTIVELY 1HPCO IS LOCATED ON DISCHARGE LINE BEHIND COMPRESSOR 1A 17M 16OL XOO OOX BYPASS VFD VFD BYPASS SW2 1 3 2 J50 CONNECTED TO J51 IN THE CONTROL BOX REFER TO LINE S 244 245 OFF 15M 16M SW2 2 R 2 8 10 SFR 2 SW3 2 SW3 1 10 18M 20M 19M 19OL 8 VFD BYPASS XOO BYPASS OOX VFD OFF 3 CONNECTED TO J53 IN THE CONTROL BOX REFER TO LINE S 247 248 EFR 2 2 R J52 2 271 270 269 245 251 252 250 249...

Page 145: ... EXHAUST FAN WIRING REFER TO LINE S 263 265 2 2 1HPCO 3 M 2 CM1 CM2 P41 COMPRESSOR MOTOR PROTECTOR WIRING FOR SYSTEM 1 CM1 AND CM2 ARE LOCATED IN COMPRESSORS 1A AND 1B RESPECTIVELY 1HPCO IS LOCATED ON DISCHARGE LINE BEHIND COMPRESSOR 1A 17M 16OL XOO OOX BYPASS VFD VFD BYPASS SW2 1 3 2 J50 CONNECTED TO J51 IN THE CONTROL BOX REFER TO LINE S 261 262 OFF 15M 16M SW2 2 R 2 8 10 SFR 2 SW3 2 SW3 1 10 18...

Page 146: ... 1 6 7 8 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 4 3 1 9 7 6 1 2 7 J14 PRIMARY UNIT 6 4 3 1 6 7 9 15 VDC 15V A 15V B 15V C 15V A 15V B EXC OUT COM 100 COM 100 200 2COM COM ELEMENTARY DIAGRAM YPAL MOD C CLASS 2 CONTROL 50 65 TON 035 13474 101 REV B 1T 115V 24V CONTROL TRANSFORMER 2T 115V 24V CONTROL TRANSFORMER S S P P 345 344 343 342 341 340 339 338 337 336 335 334 333 332 331 330 329 328 327 326 325 324 ...

Page 147: ...61 360 359 358 357 356 355 354 353 352 351 350 349 348 347 346 6C RJ25 CABLE OPTIONAL MOD UNT KIT P N 325 36143 001 REQUIRED FOR PRESSURE TRANSDUCER PACKAGE OPTION LOW 200 NEGATIVE PRESSURE SAFETY SWITCH ONLY DETAIL A LINE 308 LINE 308 11R 2 10R 2 TO LINE 305 3 2AO4C 4 2AO4 7 6 24VAC EVR 378 377 376 375 374 383 384 381 382 380 MIXED SUPPLY AIR AI 14 C AI 14 6 5 6 5 5 5 UFH UFH 3 4 3 4 SLT SLT 2 1 ...

Page 148: ...M YPAL MOD C CLASS 2 CONTROL w RETURN FAN 50 65 TON 035 13474 111 REV B 1T 115V 24V CONTROL TRANSFORMER 100 VA CLASS 2 2T 115V 24V CONTROL TRANSFORMER 75 VA CLASS 2 SEC SEC PRI PRI 350 349 348 347 346 345 344 343 342 34 340 339 338 337 336 335 334 333 332 33 330 329 328 327 326 325 324 323 322 32 320 319 318 317 316 315 314 313 312 31 310 309 308 307 306 305 304 303 302 30 300 LEGEND CTB1 CONTROL ...

Page 149: ...SER FAN VFD SYSTEM NO 1 OPTIONAL EXC OUT COM EXC OUT COM EXC OUT COM EXC OUT COM W W2 W5 W6 W10 W11 W12 W15 W4 W8 W9 15VDC W26 4 SHIELD 373 372 37 370 369 368 367 366 365 364 363 362 36 360 359 358 357 356 355 354 353 352 35 350 349 348 347 346 345 344 6C RJ25 CABLE OPTIONAL MOD UNT KIT P N 325 36143 001 REQUIRED FOR PRESSURE TRANSDUCER PACKAGE OPTION LOW AMBIENT OPTIONS AND OR FLEXSYS OPTION 200 ...

Page 150: ...I PRI 347 346 345 344 343 342 341 340 339 338 337 336 335 334 333 332 331 330 329 328 327 326 325 324 323 322 321 320 319 318 317 316 315 314 313 312 311 310 309 308 307 306 305 304 303 302 301 300 LEGEND CTB1 CONTROL TERMINAL BLOCK FOR CUSTOMER CONNECTION REFER TO LINE 249 250 REFER TO LINE 249 250 2 2 120 5 1 LINE 308 LINE 308 100 CTB2 OPTIONAL FLEXSYS CONTROL TERMINAL BLOCK FOR FIELD CONNECTION...

Page 151: ...NAL CONDENSER FAN VFD SYSTEM NO 1 OPTIONAL EXC OUT COM EXC OUT COM EXC OUT COM EXC OUT COM W W2 W5 W6 W10 W11 W12 W15 W4 W8 W9 15VDC W26 4 SHIELD 373 372 37 370 369 368 367 366 365 364 363 362 36 360 359 358 357 356 355 354 353 352 35 350 349 348 347 346 345 344 343 6C RJ25 CABLE OPTIONAL MOD UNT KIT P N 325 36143 001 REQUIRED FOR PRESSURE TRANSDUCER PACKAGE OPTION LOW AMBIENT OPTIONS AND OR FLEXS...

Page 152: ... 100 VA CLASS 2 2T 115V 24V CONTROL TRANSFORMER 75 VA CLASS 2 SEC SEC PRI PRI 345 344 343 342 341 340 339 338 337 336 335 334 333 332 331 330 329 328 327 326 325 324 323 322 321 320 319 318 317 316 315 314 313 312 311 310 309 308 307 306 305 304 303 302 301 300 LEGEND CTB1 CONTROL TERMINAL BLOCK FOR CUSTOMER CONNECTION REFER TO LINE 249 250 REFER TO LINE 249 250 2 2 120 5 1 LINE 308 LINE 308 100 5...

Page 153: ...TEM NO 1 OPTIONAL EXC OUT COM EXC OUT COM EXC OUT COM EXC OUT COM W W2 W5 W6 W10 W11 W12 W15 W4 W8 W9 W14 W18 15VDC W26 2 3 4 SHIELD 373 372 371 370 369 368 367 366 365 364 363 362 361 360 359 358 357 356 355 354 353 352 351 350 349 348 347 346 345 344 6C RJ25 CABLE OPTIONAL MOD UNT KIT P N 325 36143 001 REQUIRED FOR PRESSURE TRANSDUCER PACKAGE OPTION LOW AMBIENT OPTIONS AND OR FLEXSYS OPTION 200 ...

Page 154: ... 1L2 1L3 X1 2 21 22 21 22 21 22 21 22 3 1 5 2 4 6 13 14 13 14 13 14 13 14 4T OPTIONAL CONVENIENCE OUTLET STEP DOWN TRANSFORMER PRIMARY FROM 9FU SECONDARY TO 10FU REFER TO TRANSFORMER FOR CONNECTION DETAIL OPT SUCT DIS PRESSURE TRANSDUCER PKGS TO 4T PRI NOTE 3 REFER TO TRANSFORMER FOR CONNECTION DETAIL 6T OPTIONAL GAS HEAT STEP DOWN TRANSFORMER PRIMARY FROM 14FU SECONDARY TO 13FU 1PTB OR 1DISC 1L1 ...

Page 155: ... 14 13 14 4T OPTIONAL CONVENIENCE OUTLET STEP DOWN TRANSFORMER PRIMARY FROM 9FU SECONDARY TO 10FU REFER TO TRANSFORMER FOR CONNECTION DETAIL OPT SUCT DIS PRESSURE TRANSDUCER PKGS TO 4T PRI NOTE 3 REFER TO TRANSFORMER FOR CONNECTION DETAIL 6T OPTIONAL GAS HEAT STEP DOWN TRANSFORMER PRIMARY FROM 14FU SECONDARY TO 13FU 1PTB OR 1DISC 1L1 1L1 1L2 1L3 1L2 1L3 TO 5FU FROM 4FU SECONDARY 3T PRIMARY P136 P1...

Page 156: ...ON DETAIL 6T OPTIONAL GAS HEAT STEP DOWN TRANSFORMER PRIMARY FROM 14FU SECONDARY TO 13FU 1PTB OR 1DISC 1L1 1L1 1L2 1L3 1L2 1L3 TO 5FU FROM 4FU SECONDARY 3T PRIMARY P136 P134 P139 P23 P25 P130 P8 P26 P275 P276 P280 P272 P273 REMOTE DISPLAY UNIT RDU GND REFER TO TRANSFORMER FOR CONNECTION DETAIL J40 P40 LINE SIDE LOAD SIDE 1L1 1L2 1L3 TO HOT GAS BYPASS VALVE CONDENSER FANS CTB1 CTB2 100 COM 2 3 4 5 ...

Page 157: ...DETAIL 6T OPTIONAL GAS HEAT STEP DOWN TRANSFORMER PRIMARY FROM 14FU SECONDARY TO 13FU 1PTB OR 1DISC 1L1 1L1 1L2 1L3 1L2 1L3 TO 5FU FROM 4FU SECONDARY 3T PRIMARY P136 P134 P139 P23 P25 P130 P8 P26 P275 P276 P280 P272 P273 REMOTE DISPLAY UNIT RDU GND REFER TO TRANSFORMER FOR CONNECTION DETAIL J40 P40 LINE SIDE LOAD SIDE 1L1 1L2 1L3 TO HOT GAS BYPASS VALVE CONDENSER FANS CTB1 CTB2 100 COM 2 3 4 5 7 8...

Page 158: ...ST FAN VFD 3 5 A A2 4 2 3 5 A A2 4 2 3 5 A A2 4 2 3 5 A A2 4 2 3 5 A A2 4 2 3 5 2 4 3 5 4 2 3 5 4 2 3 5 4 2 3 5 4 2 3 5 4 2 4 2 3 5 8FU 8FU A A2 A A2 A A2 TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS 115VAC POWER FOR CONTACTOR COIL 115VAC POWER FOR CONTACTOR COIL 115VAC POWER FOR CONTACTOR COIL NOTES 1 TYPICAL SHOWN COMPONENT LOCATIONS AND SIZES MAY VARY SLIGHTLY BASED O...

Page 159: ...2 108 5 A 7FU 2 A2 3 14M 5 22 14 6 13 21 4 1L2 TO LOW VOLTAGE CONTROLS 1L3 PC 5 3 4 2 COM A2 TO EXHAUST FAN MOTOR TO SUPPLY FAN MOTOR 7FU A 2 115VAC POWER FOR CONTACTOR COIL PD 7FU 3 95 96 13OL 4 A2 3 13M 5 2 5 2 1 3 11R 5 109 A A2 10R 4 COM 5 3 A 108 7FU FROM 1PTB TO 4FU 1L1 1L2 TO LOW VOLTAGE CONTROLS 1L3 PC 8FU 8FU 8FU EFW ECM CV SUPPLY FAN W O EXHAUST FAN CV SUPPLY FAN W CV EXHAUST FAN CV SUPP...

Page 160: ...AN VFD 3 5 A A2 4 2 3 5 A A2 4 2 3 5 A A2 4 2 3 5 A A2 4 2 3 5 A A2 4 2 3 5 2 4 3 5 4 2 3 5 4 2 3 5 4 2 3 5 4 2 3 5 4 2 4 2 3 5 8FU 8FU A A2 A A2 A A2 TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS 115VAC POWER FOR CONTACTOR COIL 115VAC POWER FOR CONTACTOR COIL 115VAC POWER FOR CONTACTOR COIL NOTES 1 TYPICAL SHOWN COMPONENT LOCATIONS AND SIZES MAY VARY SLIGHTLY BASED ON AP...

Page 161: ...2 108 5 A 7FU 2 A2 3 14M 5 22 14 6 13 21 4 2L2 TO LOW VOLTAGE CONTROLS 2L3 PC 5 3 4 2 COM A2 TO EXHAUST FAN MOTOR TO SUPPLY FAN MOTOR 7FU A 2 115VAC POWER FOR CONTACTOR COIL PD 7FU 3 95 96 13OL 4 A2 3 13M 5 2 5 2 1 3 11R 5 109 A A2 10R 4 COM 5 3 A 108 7FU FROM 2PTB TO 4FU 2L1 2L2 TO LOW VOLTAGE CONTROLS 2L3 PC 8FU 8FU 8FU EFW ECM CV SUPPLY FAN W O EXHAUST FAN CV SUPPLY FAN W CV EXHAUST FAN CV SUPP...

Page 162: ...U TO 4FU FROM 1PTB 1L1 1L2 1L3 8FU 8FU TO SUPPLY FAN VFD TO SUPPLY FAN VFD TO EXHAUST FAN MOTOR TO EXHAUST FAN VFD TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS 115VAC POWER FOR CONTACTOR COIL 3 5 2 4 A A2 3 5 A A2 4 2 3 5 A A2 4 2 VAV SUPPLY FAN W O EXHAUST FAN VAV SUPPLY FAN W CV EXHAUST FAN VAV SUPPLY FAN W VAV EXHAUST FAN YPAL COMPONENT MAP VAV FAN SUBPANEL 035 13465 ...

Page 163: ...O 4FU FROM 2PTB 2L1 2L2 2L3 8FU 8FU TO SUPPLY FAN VFD TO SUPPLY FAN VFD TO EXHAUST FAN MOTOR TO EXHAUST FAN VFD TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS TO LOW VOLTAGE CONTROLS 115VAC POWER FOR CONTACTOR COIL 3 5 2 4 A A2 3 5 A A2 4 2 3 5 A A2 4 2 VAV SUPPLY FAN W O EXHAUST FAN VAV SUPPLY FAN W CV EXHAUST FAN VAV SUPPLY FAN W VAV EXHAUST FAN YPAL COMPONENT MAP VAV FAN SUBPANEL 035 13465 004...

Page 164: ... 2FU 1FU 2FU 1FU 4FU 4FU 1FU TO 7M TO 3T PRI TO 9M FROM 1PTB OR 1DISC 1L1 1L2 SUBPANEL FROM FAN 1L1 1L2 PD 1L1 1L3 1L2 1L3 FUSE STANDOFF PLATE UNITS W O GAS HEAT FUSE STANDOFF PLATE 200V AND 230V UNITS W GAS HEAT FUSE STANDOFF PLATE 380V 60 400V 50 460V AND 575V UNITS W GAS HEAT YPAL COMPONENT MAP FUSE STANDOFF PLATE NOTES 1 TYPICAL SHOWN COMPONENT LOCATIONS AND SIZES MAY VARY SLIGHTLY BASED ON AP...

Page 165: ...M FROM 1PTB OR 1DISC 1L1 1L2 SUBPANEL FROM FAN 1L1 1L2 PD 1L1 1L3 1L2 1L3 FUSE STANDOFF PLATE UNITS W O GAS HEAT FUSE STANDOFF PLATE 200V AND 230V UNITS W GAS HEAT FUSE STANDOFF PLATE 380V 60 400V 50 460V AND 575V UNITS W GAS HEAT YPAL COMPONENT MAP FUSE STANDOFF PLATE NOTES 1 TYPICAL SHOWN COMPONENT LOCATIONS AND SIZES MAY VARY SLIGHTLY BASED ON APPLICATION 2 REFER TO PANEL COMPONENT MAP FOR LOCA...

Page 166: ...RI TO 9M 1PTB FROM 1L1 1L2 SUBPANEL FROM FAN 2L1 2L2 PD 1L1 1L3 1L2 1L3 1PTB FROM FUSE STANDOFF PLATE UNITS W O GAS HEAT FUSE STANDOFF PLATE 200V AND 230V UNITS W GAS HEAT FUSE STANDOFF PLATE 380V 60 400V 50 460V AND 575V UNITS W GAS HEAT YPAL COMPONENT MAP FUSE STANDOFF PLATE NOTES 1 TYPICAL SHOWN COMPONENT LOCATIONS AND SIZES MAY VARY SLIGHTLY BASED ON APPLICATION 2 REFER TO PANEL COMPONENT MAP ...

Page 167: ... 1L2 SUBPANEL FROM FAN 2L1 2L2 PD 1L1 1L3 1L2 1L3 1PTB FROM FUSE STANDOFF PLATE UNITS W O GAS HEAT FUSE STANDOFF PLATE 200V AND 230V UNITS W GAS HEAT FUSE STANDOFF PLATE 380V 60 400V 50 460V AND 575V UNITS W GAS HEAT YPAL COMPONENT MAP FUSE STANDOFF PLATE NOTES 1 TYPICAL SHOWN COMPONENT LOCATIONS AND SIZES MAY VARY SLIGHTLY BASED ON APPLICATION 2 REFER TO PANEL COMPONENT MAP FOR LOCATION OF FUSE S...

Page 168: ... R E FE R TO TR ANS FOR ME R FOR CONNE CTION DE TAIL 13FU 13FU GND 500 501 GND 4FU 4FU R E FE R TO LINE 25 28 R E FE R TO LINE 25 28 R E FE R TO LINE S 250 252 6THX 6TH1 OPTIONAL GAS HE AT POWE R WIR ING R E QUIR E D ON 208 AND 230V UNITS WITH GAS HE AT OPTIONAL GAS HE AT POWE R WIR ING R E QUIR E D ON 460V 575V AND 380V 60 UNITS WITH GAS HE AT 230V S E C KIT 325 36141 001 002 KIT 325 36141 003 00...

Page 169: ...B COM LMT2 LMT1 COM L2 L1 A L1 B LOW HIGH CM STAT R18 20R 1 GVH 2GV H L COM 24V B LMT2 R1 R2 LMT1 24V A COM GVH NC S1 IGN COM COM FLAME SENSOR IGNITOR L1 B L1 A L2 JMPR LOW HIGH CM STAT R18 121 122 COM 143 123 124 COM 142 COM 122 121 143 123 124 COM 142 REFER TO LINES 137 140 P33 ELEMENTARY DIAGRAM YPAL GAS HEAT CONTROLS REFER TO LINES 250 251 252 253 254 256 257 258 259 260 261 262 263 264 265 26...

Page 170: ... 1 GVL A GVH GVL B 2GV H L COM 23R 1 GVL A GVH GVL B 3GV H L COM 24V B LMT2 R1 R2 LMT1 24V A COM GVH NC S1 IGN COM COM FLAME SENSOR IGNITOR L1 B L1 A L2 24V B R1 R2 LMT1 24V A COM GVH NC S1 IGN COM COM FLAME SENSOR IGNITOR L1 B L1 A L2 JMPR LMT2 JMPR LOW HIGH CM STAT R18 LOW HIGH CM STAT R18 121 122 COM 143 123 124 COM 142 125 126 COM 141 COM 122 121 143 123 124 COM 142 125 126 COM 141 REFER TO LI...

Page 171: ...HEAT POWER SIDE 50 60 TON SINGLE POINT POWER 1CB 1OL 1M 402 401 400 COMPRESSOR NO 1A 1FU 1FU CONDENSER FAN NO 1B 8M 4FU 7FU 7FU 7FU R S T U V U V R S T U V R S T 2CB 2OL 2M COMPRESSOR NO 1B 3CB 3OL 3M COMPRESSOR NO 2A 4CB 4OL 4M COMPRESSOR NO 2B 2FU 2FU 2FU 9M 10M CONDENSER FAN NO 2A CONDENSER FAN NO 2B 7FU 7FU 7FU 8FU 8FU 8FU 1L1 1L3 1L2 NOTE VFD REMOTE NOTE VFD AND BYPASS BOX OPTIONAL CONDENSER ...

Page 172: ... 6 5 4 3 2 1 J33 121 122 123 124 122 121 COM 123 REFER TO LINES 137 140 P33 ELEMENTARY DIAGRAM ELECTRIC HEAT CONTROLS 50 90 TON 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 COM A 126 125 126 124 125 370 369 COM 1 2 3 4 5 6 CTB3 ELECTRIC HEAT MOD ...

Page 173: ...nd 5 5 CONTACTOR OPE R ATING 2PR 4PR 6PR 5PR PILOT R E LAY PILOT R E LAY CONTACTOR OPE R ATING 25M PILOT R E LAY 22M 24M 21M AIR FLOW S WITCH COM NO 1PR CONNE CT PR E S S UR E POR T PR E S S UR E TUBE OR DE R 3 2 1 1AFS TO HIGH 1ATCO PILOT R E LAY CUTOUT R E S E T THE R MAL AUTOMATIC C 6 C 1 CTB3 HE ATING COILS 15 43KW HE ATING COILS 15 43KW THE R MAL CUTOUT MANUAL R E S E T 5MTCO 2MTCO 4MTCO 1MTC...

Page 174: ... 31R 24V PRI 24V SEC 1 1 ISOLATION TRANSFORMER 40VA CLASS 2 SEE DETAIL A 607 618 660 602 603 670 610 612 627 TB1 TB2 10T 11T 2 3 PS8 AO6 AO6C 664 665 664 665 AO6 AO6C 664 CONTROL HARNESS TO MICRO POWER PANEL CONNECTED TO J34 LINE S 338 341 AIR PROVING SWITCH LOCATED IN THE SUPPLY FAN SECTION P58 P57 J57 J60 P60 618 31R 1 674 30R 1 29R 1 28R 1 672 671 673 672 673 671 670 230 VAC POWER REFER TO LINE...

Page 175: ... 661 662 663 025 36378 000 MODULATING GAS VALVE SIGNAL CONDITIONER 026 40654 000 MODULATING GAS VALVE 460 461 462 463 464 465 466 467 468 469 470 230 VAC POWER REFER TO LINES 190 195 OPTIONAL HEAT MODULE REQUIRED FOR UNITS WITH 750 MBH AND 1125 MBH OPTIONS 325 36145 200 OPTIONAL HEAT MODULE REQUIRED FOR UNITS WITH 1125 MBH OPTIONS 325 36145 300 MODULE 3 TOP MODULE 2 BOTTOM MODULE 1 MIDDLE LS7 618 ...

Page 176: ...york com P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in USA Copyright by York International Corporation 2004 ALL RIGHTS RESERVED Form 100 50 NOM1 604 Supersedes Form 100 50 NOM1 502 ...

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