York Predator Z series Installation Instructions Manual Download Page 1

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R-410A
ZT SERIES W/SMART EQUIPMENT™

3 - 5 Ton

60 Hertz

5370596-YIM-C-0518

TABLE OF CONTENTS

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Power And Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Optional Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Economizer Sequences. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Single Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Free Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Airflow Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 46

Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 47

Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 47

Ignition Control Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 48

Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Control Board Navigation Components . . . . . . . . . . . . . . . . . . . . 52

Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

LIST OF TABLES

1 ZT037-061 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 ZT037-061 Unit Accessory Weights . . . . . . . . . . . . . . . . . . . . 9

4 ZT037-061 Unit Physical Dimensions . . . . . . . . . . . . . . . . . . 10

5 ZT037-061 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7 Left/End Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

10 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

11 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . 25

12 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 26

13 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . . . 27

14 Smart Equipment™ Economizer Board Details . . . . . . . . . . 32

15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

16 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 36

17 Airflow Performance - Side Duct Application . . . . . . . . . . . . . 39

18 Airflow Performance - Bottom Duct Application . . . . . . . . . . 40

19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 41

21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 41

22 Motor Sheave Datum Diameters. . . . . . . . . . . . . . . . . . . . . . 43

23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 44

24 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

25 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 47

26 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 49

27 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 51

28 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

29 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . . . . 53

30 Cable for FC Buses and SA Buses in Order of Preference . 58

31 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 59

32 ZT037 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

33 ZT049 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

34 ZT061 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

LIST OF FIGURES

1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Condenser Covering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Predator

Component Location (ZT037 Shown) . . . . . . . . . . 7

5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7 ZT037-061 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 9

8 ZT037-061 Unit Bottom Duct Openings . . . . . . . . . . . . . . . . 11

9 ZT037-061 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . . . . 12

10 ZT037-061 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . 12

11 ZT037-061 Unit Left/End Duct Opening . . . . . . . . . . . . . . . . 13

12 ZT037-061 Roof Curb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

13 ZT037-061 Transition Roof Curb . . . . . . . . . . . . . . . . . . . . . 14

14 ZT037-061 Roof Curb Cutaway . . . . . . . . . . . . . . . . . . . . . . 14

15 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 15

16 Return Downflow Plenum With Panel. . . . . . . . . . . . . . . . . . 15

17 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

18 Save Side Panels For Economizer Hood Tops . . . . . . . . . . 15

19 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

20 Field Wiring Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

21 Typical Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

22 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

23 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

24 Simplified VFD Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

25 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . . . . 32

26 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

27 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 37

28 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

29 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

30 Typical Two Stage Gas Valve . . . . . . . . . . . . . . . . . . . . . . . 52

31 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Summary of Contents for Predator Z series

Page 1: ...re Correction Factors 36 17 Airflow Performance Side Duct Application 39 18 Airflow Performance Bottom Duct Application 40 19 RPM Selection 41 20 Indoor Blower Specifications 41 21 Power Exhaust Specifications 41 22 Motor Sheave Datum Diameters 43 23 Additional Static Resistance 44 24 Electric Heat Limit Setting 47 25 Electric Heat Anticipator Setpoints 47 26 Gas Heat Anticipator Setpoints 49 27 G...

Page 2: ...est edition Wear safety glasses and work gloves Use quenching cloth and have a fire extinguisher available during brazing operations Improper installation may create a condition where the operation of the product could cause personal injury or property damage Improper installation adjustment alteration service or maintenance can cause injury or property damage Refer to this manual for assistance o...

Page 3: ...ly on combustible flooring or in the U S on wood flooring or Class A Class B or Class C roof covering materials 4 For use with natural gas convertible to LP with kit This product must be installed in strict compliance with the enclosed installation instructions and any applicable local state and national codes including but not limited to building electrical and mechanical codes The furnace and it...

Page 4: ...arometric RLF D Economizer w Power EXH H Motorized Damper Outdoor Air Option 1 No Service Options 2 DSC Disconnect Switch 3 NCO Non PWR Conv Outlet 4 PCO Powered Conv Outlet 5 DSC NCO 6 DSC PCO A No Sensors B PHM Phase Monitor C DFS Dirty Filter Switch D SSD Supply Air Smoke DET E RSD Return Air Smoke DET F PHM DFS G PHM SSD H PHM RSD J DFS SSD K DFS RSD L SSD RSD M PHM DFS SSD N PHM DFS RSD P PHM...

Page 5: ...must be operated under thermostatic control Return and supply air ducts must be sealed to the unit Air filters in place Unit furnace input rate and temperature rise must be set per rating plate marking Return air temperature maintained between 55ºF 13ºC and 80ºF 27ºC Upon completion of the construction phase and prior to formal start up and commissioning the unit duct work and components should be...

Page 6: ...djusted 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 dealer s and or customer s expense Size of unit for proposed installation should be based on heat loss heat gain calculation made according to the methods of Air Conditioning Contractors of America ACCA This furnace is ...

Page 7: ... solid core Slide out motor and blower assembly for easy adjustment and service Base rails w forklift slots three sides and lifting holes Toolless door latch Side entry power and control wiring knockouts Premium Efficiency Belt drive blower motor Power ventor motor 20 gauge aluminized steel tubular heat exchanger for long life stainless steel option Two stage gas heating to maintain warm comfortab...

Page 8: ...xcessive exposure of this furnace to contaminated combustion air may result in equipment damage or personal injury Typical contaminates include permanent wave solution chlorinated waxes and cleaners chlorine based swimming pool chemicals water softening chemicals carbon tetrachloride Halogen type refrigerants cleaning solvents e g perchloroethylene printing inks paint removers varnishes hydrochlor...

Page 9: ...g Economizer 90 85 Power Exhaust 40 35 Electric Heat1 49 49 Gas Heat2 110 110 1 Weight given is for the maximum heater size available 24KW 2 Weight given is for the maximum number of tube heat exchangers available 8 tube LEFT A 59 00 C D E F 4 19 27 31 89 00 21 19 11 38 15 38 59 00 15 38 29 69 15 25 FRONT SEE DETAIL B FOR DRAIN LOCATION SEE DETAIL A FOR GAS INLET B 2X Ø 24 38 ...

Page 10: ...16 15 3 16 6 3 16 42 CABINET Ø 3 126 Ø 2 000 3 184 4 727 7 705 14 594 Gas Pipe Inlet Gas Exhaust Vent 5 3 8 3 4 FPT Table 5 ZT037 061 Unit Clearances Direction Distance in Direction Distance in Top1 1 Units must be installed outdoors Over hanging structure or shrubs should not obscure condenser air discharge outlet 72 Right 12 Front 36 Left 36 Rear 36 Bottom2 2 Units may be installed on combustabl...

Page 11: ... Bottom Duct Openings Bottom condensate drain Bottom gas supply entry FRONT RETURN AIR SUPPLY AIR RIGHT LEFT 20 1 8 19 1 8 17 1 8 6 13 16 6 13 16 32 11 16 14 1 2 16 3 8 18 1 16 25 9 16 12 5 16 27 1 2 24 21 18 89 Ø 2 469 3X Ø 0 875 Bottom power control and convenience outlet wiring entry ...

Page 12: ...r Power Entry Ø 2 1 2 Control Entry Ø 7 8 Power Entry Ø 2 1 2 Convenience Outlet Cover Convenience Outlet Power Entry Ø 7 8 FRONT Dot Plugs 5 5 32 31 11 16 2 31 32 18 1 4 Return Air Supply Air A B C D Table 6 Side Duct Dimensions Unit Model Number Dimension in A B C D ZT037 27 3 4 12 1 16 27 1 2 16 ZT049 27 3 4 12 1 16 27 1 2 16 ZT061 27 3 4 12 1 16 27 1 2 16 ...

Page 13: ...61 Roof Curb Table 7 Left End Duct Dimensions Unit Model Number Dimension in A B C ZT037 30 357 13 365 22 516 ZT049 30 357 13 365 22 516 ZT061 30 357 13 365 22 516 4 5 16 A C B 8 or 14 50 1 2 30 20 20 80 5 8 6 2 TYP INSULATED DECK UNDER COMPRESSOR SECTION INSULATED DECK UNDER CONDENSER SECTION FRONT RIGHT SUPPLY RETURN ...

Page 14: ... 50 1 2 30 1 2 64 1 4 59 1 4 10 23 4 26 80 5 8 2 TYP FRONT RIGHT SUPPLY RETURN 3 4 X 1 1 4 WIDE GASKETING FOR CURB FRAME AND ALL DUCT SUPPORT SURFACES 2 UNIT BASE WOOD NAILER 8 MIN ABOVE FINISHED ROOF CURB FRAME INSULATION UNIT BASE RAILS COUNTERFLASHING CAN T STRIP INSULATION AND ROOFING MATERIAL ROOF DECK AND SUPPORT STRUCTURE 14 3 56 3 75 ...

Page 15: ... duct connections are designed to be reused by securing each panel to its respective down flow opening But keep in mind that the supply panel is installed with the painted surface UP facing the heat exchanger while the return panel is installed with the painted surface DOWN facing the down flow duct opening The supply panel is secured with the bracket already in place from the factory and two scre...

Page 16: ...xposure of the oil to the atmosphere POE polyolester compressor lubricants are known to cause long term damage to some synthetic roofing materials Procedures which risk oil leakage include but are not limited to compressor replacement repairing refrigerant leaks replacing refrigerant components such as filter drier pressure switch metering device or coil Units are shipped with compressor mountings...

Page 17: ...d replacement wire must be of the type shown on the wiring diagram and the same minimum gauge as the replaced wire A disconnect must be utilized for these units Factory installed disconnects are available If installing a disconnect field supplied or York International supplied accessory refer to Figure 4 for the recommended mounting location NOTE Since not all local codes allow the mounting of a d...

Page 18: ...the unit nameplate Refer to Electrical Data Table 9 to size power wiring fuses and disconnect switch Power wiring is brought into the unit through the side of the unit or the basepan inside the curb Figure 20 Field Wiring Disconnect THREE PHASE POWER SUPPLY FACTORY OR FIELD SUPPLIED DISCONNECT GROUND LUG TERMINAL BLOCK TB1 ...

Page 19: ...l Control Wiring Table 8 Control Wire Sizes Wire Size Maximum Length1 1 From the unit to the thermostat and back to the unit 18 AWG 150 Feet OCC C RC G Y2 Y1 W2 W1 X R THERMOSTAT TERMINALS CONTROL TERMINAL BLOCK TERMINALS ON A LIMITED NUMBER OF THERMOSTATS 1 4 3 1 2 4 Second stage ŚĞĂƟŶŐ Ŷot required on single stage heĂƟŶg units Jumper is required if there is no Smoke Detector circuit Jumper is re...

Page 20: ...29 0 35 8 40 45 E15 11 3 2 31 4 44 6 51 5 45 60 E20 15 0 2 41 6 57 4 64 3 60 70 230 14 0 83 1 21 9 3 5 4 3 5 5 0 0 None 28 8 34 3 40 45 E06 6 0 1 14 4 28 8 34 3 40 45 E09 9 0 1 21 7 32 4 39 3 40 45 E15 15 0 2 36 1 50 5 57 4 60 60 E20 20 0 2 48 1 65 5 72 4 70 80 460 6 4 41 0 10 0 3 5 2 1 2 2 0 0 None 13 6 15 8 20 20 E06 6 0 1 7 2 13 6 15 8 20 20 E09 9 0 1 10 8 16 2 18 9 20 20 E15 15 0 2 18 0 25 2 2...

Page 21: ... 45 E15 11 3 2 31 4 44 6 51 5 45 60 E20 15 0 2 41 6 57 4 64 3 60 70 230 14 0 83 1 21 9 3 5 4 3 5 5 0 0 None 28 8 34 3 40 45 E06 6 0 1 14 4 28 8 34 3 40 45 E09 9 0 1 21 7 32 4 39 3 40 45 E15 15 0 2 36 1 50 5 57 4 60 60 E20 20 0 2 48 1 65 5 72 4 70 80 460 6 4 41 0 10 0 3 5 2 1 2 2 0 0 None 13 6 15 8 20 20 E06 6 0 1 7 2 13 6 15 8 20 20 E09 9 0 1 10 8 16 2 18 9 20 20 E15 15 0 2 18 0 25 2 27 9 30 30 E2...

Page 22: ... 50 E15 11 3 2 31 4 57 1 64 0 60 70 E20 15 0 2 41 6 69 9 76 8 70 80 230 14 0 83 1 21 9 3 5 4 3 5 5 10 0 None 38 8 44 3 50 50 E06 6 0 1 14 4 38 8 44 3 50 50 E09 9 0 1 21 7 44 9 51 8 50 60 E15 15 0 2 36 1 63 0 69 9 70 70 E20 20 0 2 48 1 78 0 84 9 80 90 460 6 4 41 0 10 0 3 5 2 1 2 2 5 0 None 18 6 20 8 25 25 E06 6 0 1 7 2 18 6 20 8 25 25 E09 9 0 1 10 8 22 4 25 2 25 30 E15 15 0 2 18 0 31 4 34 2 35 35 E...

Page 23: ...15 11 3 2 31 4 57 1 64 0 60 70 E20 15 0 2 41 6 69 9 76 8 70 80 230 14 0 83 1 21 9 3 5 4 3 5 5 10 0 None 38 8 44 3 50 50 E06 6 0 1 14 4 38 8 44 3 50 50 E09 9 0 1 21 7 44 9 51 8 50 60 E15 15 0 2 36 1 63 0 69 9 70 70 E20 20 0 2 48 1 78 0 84 9 80 90 460 6 4 41 0 10 0 3 5 2 1 2 2 5 0 None 18 6 20 8 25 25 E06 6 0 1 7 2 18 6 20 8 25 25 E09 9 0 1 10 8 22 4 25 2 25 30 E15 15 0 2 18 0 31 4 34 2 35 35 E20 20...

Page 24: ...UE Steady state efficiency 81 5 81 81 81 5 81 81 81 81 80 5 No burners 4 4 6 4 4 6 4 6 8 No stages 21 22 22 21 22 22 22 22 22 Temperature Rise Range ºF 20 50 F 25 65 F 50 80 F 20 50 F 25 65 F 50 80 F 25 65 F 35 65 F 45 75 F Gas Limit Setting ºF 235 200 255 235 200 255 200 245 240 Gas piping connection in 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 4 DIMENSIONS inches Length 89 89 89 Width 59 59 59 Height 42...

Page 25: ...e Direct ECM Direct ECM Direct ECM Quantity of motors 2 2 2 Motor HP each 1 3 1 3 1 3 No speeds Var Var Var RPM 850 850 850 Nominal total CFM 7000 7000 7000 BELT DRIVE EVAP FAN DATA Quantity 1 1 1 Fan Size Inch 12 x 9 12 x 9 12 x 9 Type Centrifugal Centrifugal Centrifugal Motor Sheave 1VL40 1VL40 1VL34 1VL44 1VL40 1VM50 Blower Sheave AK79 AK61 AK64 AK69 AK61 AK64 Belt A47 A45 A47 A47 A45 A47 Motor...

Page 26: ...r with locality The value should be checked with the local gas utility Figure 22 Side Entry Gas Piping Figure 23 Bottom Entry Gas Piping NOTE Maximum capacity of pipe in cubic feet of gas per hour based upon a pressure drop of 0 3 inch W C and 0 6 specific gravity gas NOTE There may be a local gas utility requirement specifying a minimum diameter for gas piping All units require a 3 4 inch pipe co...

Page 27: ...h accessory kit model numbers 1NP0454 or 1NP0455 All LP gas equipment must conform to the safety standards of the National Fire Protection Association Table 13 Gas Heat Minimum Supply Air Size Tons Model Heat Size Supply Air CFM Heating Min Max 037 3 ZT N06 890 2220 N08 915 2370 N12 1130 1800 049 4 ZT N06 890 2220 N08 915 2370 N12 1290 2250 061 5 ZT N08 915 2370 N12 1380 2570 N16 1580 2630 Natural...

Page 28: ...ding to NFPA 72 requirements and cleaned at least once a year For specific troubleshooting and maintenance procedures please refer to the smoke detector s installation instructions which accompanies the unit Motorized Outdoor Damper The Motorized Outdoor Damper can be a factory installed option or a field installed accessory If factory installed refer to the instructions included with the outdoor ...

Page 29: ...VFD is mounted in the blower access compartment The drive comes wired from the factory to include both 3 phase power and control connections run permit signal speed reference signal fault signal All required drive parameters are pre programmed at the factory except in the case of 208 volt applications in which the parameter that defines motor nameplate voltage must be changed to a value of 208 00 ...

Page 30: ...termines the type of free cooling changeover based on which sensors are present and reliable Conditions include Return and outside air dry bulb dry bulb changeover Return and outside air dry bulb and outside air humidity single enthalpy Return and outside air dry bulb and return and outside air humidity dual enthalpy If either the return or outside air dry bulb sensors are unreliable free cooling ...

Page 31: ...o minimum position and the compressor outputs will be de energized as long as their minimum run timers have expired Power Exhaust Setpoints a Economizer Enable ON b Power Exhaust Enable ON c Modulating Power Exhaust OFF d Exhaust VFD Installed OFF e Building Pressure Sensor Enabled OFF f Econo Damper Position For Exh Fan ON Percent g Econo Damper Position For Exh Fan OFF Percent Inputs No inputs a...

Page 32: ...ermistor MAT parameter reports input status F C 3 65 VDC reading MAT to COM with open circuit Read only use in current control revision IN1 MAT LEDs at left on upper edge of economizer board POWER POWER Green UCB power indicator Lit indicates 24 VAC is present at 24V IN COM and HOT pins FAULT FAULT Red networking error and firmware error indicator 1 10th second on off flashing indicates a networki...

Page 33: ... power exhaust actuator and economizer actuator Connects through circuit trace to 24V IN pin HOT ECON 2 10 VDC output for the Economizer actuator Econ parameter reports output status 0 100 Used to position the economizer actuator for minimum position free cooling demand ventilation cooling economizer loading and purge functions COM 24 VAC common 0 10 VDC negative for economizer actuator Connects t...

Page 34: ...negative for the indoor air quality sensor Connects through circuit trace to 24V IN pin COM R 24V 24 VAC hot supplied for the outdoor air quality sensor Connects through circuit trace to 24V IN pin HOT IN6 OAQ 0 10 VDC positive input from the Outdoor Air Quality sensor OAQRange parameter sets the CO2 parts per million measured by the outdoor air quality sensor when it outputs 10 VDC OAQ parameter ...

Page 35: ... is drawing low amperage has similar suction and discharge pressures or producing a high noise level the scroll is misphased Blower Rotation Check for proper supply air blower rotation If the blower is rotating backwards the line voltage at the unit point of power connection is misphased See PHASING C COM 24 VAC common 0 5 VDC negative for the building pressure sensor Connects through circuit trac...

Page 36: ...for adjusting belt tension 1 Loosen six nuts top and bottom A 2 Adjust by turning B 3 Never loosen nuts C 4 Use belt tension checker to apply a perpendicular force to one belt at the midpoint of the span as shown Deflection distance of 4mm 5 32 is obtained To determine the deflection distance from normal position use a straight edge from sheave to sheave as reference line The recommended deflectio...

Page 37: ...2 0 56 Example 2 A system located at 5 000 feet of elevation is to deliver 1 400 CFM at a static pressure of 1 5 Use the unit blower tables to select the blower speed and the BHP requirement Solution As in the example above no temperature information is given so 70 F is assumed The 1 5 static pressure given is at an elevation of 5 000 ft The first step is to convert this static pressure to equival...

Page 38: ...BHP exceeds the maximum continuous BHP rating of the 1 5 HP motor The 2 HP motor is required 6 1230 RPM is within the range of the 2 HP drives 7 Using the 2 HP motor and drive 5 turns open will achieve 1230 RPM Example Supply Air Blower Performance Air Flow CFM Available External Static Pressure IWG 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM...

Page 39: ...40 729 0 46 815 0 54 888 0 63 965 0 72 1007 0 78 1088 0 87 1140 1 00 1198 1 06 1500 574 0 36 666 0 42 747 0 50 831 0 59 900 0 68 975 0 78 1019 0 83 1096 0 92 1151 1 06 1207 1 11 1600 596 0 39 689 0 44 766 0 54 847 0 63 912 0 73 983 0 84 1031 0 88 1103 0 97 1162 1 13 1217 1 18 1700 619 0 43 711 0 49 786 0 58 863 0 68 925 0 79 991 0 89 1043 0 94 1112 1 04 1172 1 19 1227 1 25 1800 643 0 47 734 0 54 8...

Page 40: ...1224 1 17 1400 586 0 37 680 0 46 769 0 55 852 0 65 930 0 74 1003 0 84 1070 0 93 1132 1 02 1189 1 12 1500 612 0 40 703 0 50 790 0 59 871 0 69 948 0 78 1019 0 88 1086 0 97 1148 1 07 1205 1 17 1600 643 0 44 731 0 53 814 0 63 893 0 73 967 0 82 1037 0 92 1103 1 01 1164 1 11 1221 1 21 1700 671 0 47 756 0 57 837 0 67 914 0 77 987 0 87 1056 0 97 1121 1 07 1183 1 17 1800 699 0 53 781 0 63 860 0 73 935 0 84...

Page 41: ... 5 1VL34 AK64 N A 576 631 688 747 800 859 H Static 1 5 1 5 1VL44 AK69 N A 792 844 892 944 996 1045 Field Supplied 1 5 1 5 1VL44 AK59 N A 915 989 1050 1113 1173 1238 061 5 ZT Field Supplied 1 5 1 5 1VL40 AK79 N A 609 656 703 746 792 839 Std 1 5 1 5 1VL40 AK61 N A 782 846 906 968 1022 1085 Field Supplied 2 2 1VL40 AK54 N A 896 960 1030 1090 1166 1238 H Static 2 2 1VM50 AK64 N A 1022 1079 1135 1190 1...

Page 42: ...not affect the static pressure readings 3 Use an Inclined Manometer or Magnehelic to determine the pressure drop across the unit This is the External Static Pressure ESP In order to obtain an accurate measurement be certain that the air filters are clean 4 Determine the number of turns the variable motor sheave is open 5 Select the correct blower performance table for the unit from Tables 17 and 1...

Page 43: ...result in substantial changes in static pressure and BHP BHP and AMP draw of the blower motor will increase by the cube of the blower speed Static pressure will increase by the square of the blower speed Only qualified personnel should make blower speed changes strictly adhering to the fan laws 1 700 CFM 1 400 CFM 1 88 in 2 28 in Table 22 Motor Sheave Datum Diameters 1VL34x7 8 1 1 2 HP Motor 1VL44...

Page 44: ...02 0 03 0 01 0 01 0 01 0 02 0 02 0 02 1200 0 04 0 00 0 04 0 01 0 01 0 01 0 02 0 02 0 02 1300 0 03 0 01 0 05 0 01 0 01 0 01 0 03 0 03 0 03 1400 0 03 0 03 0 07 0 02 0 02 0 02 0 03 0 03 0 03 1500 0 03 0 04 0 08 0 02 0 02 0 02 0 04 0 04 0 04 049 4 061 5 ZT 1200 0 01 0 10 0 05 0 01 0 01 0 01 0 02 0 02 0 02 1300 0 01 0 11 0 06 0 01 0 01 0 01 0 03 0 03 0 03 1400 0 01 0 12 0 06 0 02 0 02 0 02 0 03 0 03 0 ...

Page 45: ...int If the output to the economizer actuator is at minimum position and the supply air temperature drops more than 5 degrees below the current economizer SAT setpoint the highest stage compressor will be de energized as long as the minimum run time has elapsed Economizer With Single Enthalpy Sensor When the room thermostat calls for cooling the low voltage control circuit from R to G and Y1 is com...

Page 46: ... low ambient setpoint at 45ºF default When the OAT Sensor senses a temperature below the low ambient setpoint and the thermostat is calling for cooling the UCB will operate in the low ambient mode Low ambient mode operates the compressors in this manner 10 minutes on 5 minutes off The indoor blower is operated throughout the cycle The 5 minute off period is necessary to defrost the indoor coil Low...

Page 47: ...ng lower than the conditioned space temperature Electric Heat Anticipator Setpoints It is important that the anticipator setpoint be correct Too high of a setting will result in longer heat cycles and a greater temperature swing in the conditioned space Reducing the value below the correct setpoint will give shorter ON cycles and may result in the lowering of the temperature within the conditioned...

Page 48: ...e the appropriate action to occur Recycling the low voltage power cancels the lock out Temperature Limit If the UCB senses zero volts from the high temperature limit the indoor blower motor is immediately energized When the UCB again senses 24 volts from the temperature limit the draft motor will perform a 15 second post purge and the indoor blower will be de energized following the elapse of the ...

Page 49: ...ure it will cease all outputs ignore inputs and display the proper flash code for control replacement The ICB remains in this condition until replaced Flash Codes The ICB will initiate a flash code associated with errors within the system Refer to IGNITION CONTROL FLASH CODES Table 31 Resets Remove the call for heating by lowering the thermostat setting lower than the conditioned space temperature...

Page 50: ...the minimum input for the furnace The intended input for each furnace is shown in Table 28 The table applies to units operating on 60 Hz power only To determine the rate of gas flow Second Stage 1 Turn off all other gas appliances connected to the gas meter 2 Turn on the furnace and make sure the thermostat is calling for Second stage 100 input heat 3 Measure the time needed for one revolution of ...

Page 51: ...ocedure Adjust second stage 100 input pressure first then adjust first stage 70 input pressure 1 Turn off all power to the unit 2 Using the outlet pressure port on the gas valve connect a manometer to monitor the manifold pressure 3 Remove plastic cap covering HI and LO pressure adjustment screws 4 Turn on power to the unit 5 Set thermostat to call for second stage heat and start furnace 6 If nece...

Page 52: ...manifold supports Burners are now accessible for inspection and or replacement NOTE Reverse the above procedure to replace the assemblies Make sure that burners are level and seat at the rear of the gas orifice Figure 29 Typical Flame Figure 30 Typical Two Stage Gas Valve Control Board Navigation Components The following components are needed to access the control points in the Smart Equipment con...

Page 53: ...B microprocessor connects through circuit trace to the SD 24 terminal SD 24 24 VAC hot out for factory accessory smoke detector condensate overflow and or user shutdown relay switching in series Connects through circuit trace to thermostat connection strip SD 24 A wiring harness jumper plug connecting SD 24 to SD R is in place if factory accessories for unit shutdown are not used this jumper plug ...

Page 54: ...indicates 24 VAC is present at C and 24V terminals FAULT Red hard lockout networking error and firmware error indicator 1 2 second on off flashing indicates one or more alarm is currently active 1 10th second on off flashing indicates a networking error polarity addressing etc or a firmware error likely correctable with re loading from USB flash drive SA BUS Green UCB SA bus communication transmis...

Page 55: ...5 VDC reading EC2 to EC2 with open circuit Used in suction line temperature safety Pinned connections on right edge of UCB RAH Return Air Humidity input from 0 10 VDC 0 100 RH sensor Input required for reheat units optional in all other units may be a communicated value Used in return air enthalpy calculation temperature humidity setpoint reset reheat operation DCT PRS Supply Duct Pressure input f...

Page 56: ...put for indoor blower contactor coil indoor blower VFD enable relay coil Output with heat cool operation G input or schedule demand C1 24 VAC hot output for compressor 1 If demand is present and permissions allow compressor 1 operation output with compressor cooling comfort ventilation cooling reheat or heat pump heating demands C2 24 VAC hot output for compressor 2 Not effective for one stage com...

Page 57: ...ter of the board Positive of the 15 VDC reading to C circuit for powering an optional netstat and or Multi Touch gateway C Common for SA BUS power and communication circuits Also incorporated in the J8 6 pin phone jack connector at the left center of the board Negative of the SA BUS circuits Communication for SA BUS devices Also incorporated in the J8 6 pin phone jack connector at the left center ...

Page 58: ...t indicates the UCB is supplying power to the communication sub board 1 When wiring unit and other devices using the SA Bus and FC Bus see Table 30 Table 29 Smart Equipment UCB Details Continued Description Function Comments Table 30 Cable for FC Buses and SA Buses in Order of Preference Bus and Cable Type Non Plenum Applications Plenum Applications Part Number O D Part Number O D FC Bus 22 AWG St...

Page 59: ...ady Off No Power Or Control Failure 24VAC or Control Air Flow Indoor Db Wb Outdoor DB Suction Pressure Suction Temp Liquid Pressure Liquid Temp Delta T Db Compressor Amps 300 Cfm Ton 80 62 75 134 57 259 77 25 7 6 85 133 56 302 87 26 8 1 95 133 54 345 96 26 8 6 300 Cfm Ton 80 67 75 134 58 258 77 25 7 6 85 137 57 303 87 24 8 0 95 139 56 347 97 23 8 5 300 Cfm Ton 80 72 75 135 60 258 77 25 7 5 85 140 ...

Page 60: ...65 78 22 10 4 85 153 65 310 88 21 11 1 95 156 64 354 98 20 11 8 400 Cfm Ton 75 62 75 139 62 262 77 22 10 2 85 141 60 305 87 21 10 9 95 143 59 349 97 20 11 6 Air Flow Indoor Db Wb Outdoor DB Suction Pressure Suction Temp Liquid Pressure Liquid Temp Delta T Db Compressor Amps 300 Cfm Ton 80 62 75 139 60 271 79 27 10 4 85 137 57 316 88 27 11 3 95 135 54 361 96 27 12 2 300 Cfm Ton 80 67 75 139 59 274 ...

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