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York ZH078 Installation Manual

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R-410A
ZH SERIES W/SMART EQUIPMENT™
6-1/2 - 12-1/2 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Optional Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Optional Variable Air Volume (VAV) . . . . . . . . . . . . . . . . . . . . 35
Optional Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . . . . . 37
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Single Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1 ZH078-150 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZH078-150 Unit Accessory Weights . . . . . . . . . . . . . . . . . . . . 9
4 ZH078-150 Unit Physical Dimensions . . . . . . . . . . . . . . . . . . 10
5 ZH078-150 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Left/End Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10 ZH078-150 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . 31
12 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 32
13 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . . . 33
15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
16 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 44
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
®
4 Predator
Component Location (ZH120 Shown) . . . . . . . . . . 6
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZH078-120 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 9
9 ZH150 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 ZH078-150 Unit Bottom Duct Openings . . . . . . . . . . . . . . . . 12
11 ZH078-150 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . . . . 13
12 ZH078-120 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . 13
13 ZH150 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . . . . 14
14 ZH078-150 Unit Left/End Duct Opening . . . . . . . . . . . . . . . . 14
15 ZH078-150 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
16 ZH078-150 Transition Roof Curb . . . . . . . . . . . . . . . . . . . . . 15
17 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 16

TABLE OF CONTENTS

Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Free Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Airflow Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . 53
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 56
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 56
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 57
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 58
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Control Board Navigation Components . . . . . . . . . . . . . . . . . . . . 62
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
LIST OF TABLES
19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 50
21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 50
22 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . . . . 52
23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 53
24 Electric Heat Limit Setting 50" Cabinet . . . . . . . . . . . . . . . . . 57
25 Electric Heat Limit Setting 42" Cabinet . . . . . . . . . . . . . . . . . 57
26 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 57
27 Gas Heat Limit Control Settings . . . . . . . . . . . . . . . . . . . . . . 59
28 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 59
29 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 61
30 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
31 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . . . . 63
33 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 69
LIST OF FIGURES
19 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
21 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Heat and All Units With VFD Option . . . . . . . . . . . . . . . . . . 18
VFD Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
25 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
26 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
27 Simplified VFD Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
28 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . . . . 39
29 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
30 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 44
31 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
32 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
33 Typical Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
34 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5167515-YIM-H-0518

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Summary of Contents for York ZH078

  • Page 1: Table Of Contents

    30 Altitude/Temperature Correction Factors ....44 15 ZH078-150 Roof Curb ......15 31 Dry Coil Delta P .

  • Page 2: General

    5167515-YIM-H-0518 General ® ® York Predator units are single package air conditioners with optional gas heating designed for outdoor installation on a Before performing service or maintenance operations on rooftop or slab and for non-residential use. These units can be unit, turn off main power switch to unit.
  • Page 3 Additional information is available in the following reference forms: • Technical Guide - ZH078-150, 5167795 • General Installation - ZH078-150, 5167515 Improper installation may create a condition where the • Smart Equipment™ Control Quick Start Guide - 1136326 operation of the product could cause personal injury or •...
  • Page 4 5167515-YIM-H-0518 Nomenclature ® 6.5-12.5 Ton ZH York Model Number Nomenclature Z H 090 C A 2 A 1 Product Generation Product Category 1 = First Generation Z = A/C, Single Pkg., R-410A Cabinet Options A = Std Cabinet Product Identifier...

  • Page 5: Installation

    5167515-YIM-H-0518 Remove the toolless doorknobs and instruction packet Installation prior to installation. Installation Safety Information Condenser Read these instructions before continuing this appliance Coil External installation. This is an outdoor combination heating and cooling Protective unit. The installer must assure that these instructions are made Covering available to the consumer and with instructions to retain them for future reference.

  • Page 6: Component Location (Zh120 Shown)

    Roof efficient operation curbs for transitioning from Compressor #1 access Side entry power York Sunline™ footprint to Toolless (high-efficiency compressor and control wiring the ZH Series footprints door latch w/crankcase heater) knockouts...

  • Page 7: Location

    5167515-YIM-H-0518 Table 1: ZH078-150 Unit Limitations Unit Limitations Size Model Unit Voltage Applied Voltage Outdoor DB Temp (Tons) Max (°F) 208/230-3-60 460-3-60 (6.5) 575-3-60 208/230-3-60 460-3-60 (7.5) 575-3-60 208/230-3-60 460-3-60 (8.5) 575-3-60 208/230-3-60 460-3-60 (10) 575-3-60 208/230-3-60 460-3-60 (12.5) 575-3-60...

  • Page 8: Weights And Dimensions

    5167515-YIM-H-0518 Before lifting, make sure the unit weight is distributed equally on the rigging cables so it will lift evenly. Units may be moved or lifted with a forklift. Slotted openings in the base rails are provided for this purpose. LENGTH OF FORKS MUST BE A MINIMUM OF 60 INCHES.

  • Page 9: Zh078-150 Unit Accessory Weights

    5167515-YIM-H-0518 Table 3: ZH078-150 Unit Accessory Weights Weight (lbs.) Unit Accessory Shipping Operating Economizer Power Exhaust Electric Heat Gas Heat Variable Frequency Drive 1. Weight given is for the maximum heater size available (54KW). 2. Weight given is for the maximum number of tube heat exchangers available (8 tube).

  • Page 10: Zh078-150 Unit Physical Dimensions

    11 3/8 See detail B for drain location 21 3/16 LEFT 4 3/16 FRONT 27 5/16 Figure 9: ZH150 Physical Dimensions Table 4: ZH078-150 Unit Physical Dimensions Dimension (in.) Unit Model Number ZH078 22 1/8 18 3/16 15 3/16 6 3/16...

  • Page 11: Zh078-150 Unit Clearances

    14.594 7.715 7.705 4.737 4.727 42” CABINET 50 3/4” CABINET Detail B 5-3/8 3/4” FPT Table 5: ZH078-150 Unit Clearances Direction Distance (in.) Direction Distance (in.) Right Front Left Rear Bottom 1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge outlet.

  • Page 12: Zh078-150 Unit Bottom Duct Openings

    Bottom condensate drain 14 1/2 25 9/16 Bottom gas supply entry 16 3/8 18 1/16 FRONT TOP VIEW Bottom power, control and convenience outlet wiring entry 3X Ø 0.875 Ø 2.469 Figure 10: ZH078-150 Unit Bottom Duct Openings Johnson Controls Ducted Systems...

  • Page 13: Zh078-150 Unit Electrical Entry

    D o t P l u g s Return Supply Air 2 - 3 1 /3 2 5 - 5 /3 2 3 1 - 1 1 /1 6 Figure 12: ZH078-120 Unit Side Duct Openings Johnson Controls Ducted Systems...

  • Page 14: Side Duct Dimensions

    27 1/2 ZH102 28 1/4 18 1/16 28 1/4 18 1/4 ZH120 28 1/4 18 1/16 28 1/4 18 1/4 ZH150 28 1/4 18 1/16 28 1/4 18 1/4 4-5/16 Figure 14: ZH078-150 Unit Left/End Duct Opening Johnson Controls Ducted Systems...

  • Page 15: Left/End Duct Dimensions

    2 TYP. INSULATED DECK UNDER 50-1/2 COMPRESSOR SECTION FRONT 8 or 14 Figure 15: ZH078-150 Roof Curb 2 TYP 23 4 30-1/2 50-1/2 80-5/8 RETURN SUPPLY 76-5/8 59-1/4 FRONT RIGHT 64-1/4 Figure 16: ZH078-150 Transition Roof Curb Johnson Controls Ducted Systems...

  • Page 16: Ductwork

    5167515-YIM-H-0518 Ductwork Ductwork should be designed and sized according to the methods in Manual D of the Air Conditioning Contractors of America (ACCA) or as recommended by any other recognized authority such as ASHRAE or SMACNA. A closed return duct system should be used. This will not preclude use of economizers or outdoor fresh air intake.

  • Page 17: Compressors

    5167515-YIM-H-0518 for piping inside the roof curb. Trap the connection per Figure 21. The trap and drain lines should be protected from freezing. Plumbing must conform to local codes. Use a sealing compound on male pipe threads. Install condensate drain line from the 1 Exposure, even if immediately cleaned up, may cause inch NPT female connection on the unit to an open drain.

  • Page 18: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat And All Units With Vfd Option

    5167515-YIM-H-0518 Electrical line must be sized properly to carry the load. USE COPPER CONDUCTORS ONLY. Each unit must be wired with a separate branch circuit fed directly from the meter panel and properly fused. 208/230-3-60 and 380/415-3-50 units control transformers are factory wired for 230v and 415v power Refer to Figures 22, 23 and 24 for typical field wiring and to the supply respectively.

  • Page 19: Control Wire Sizes

    5167515-YIM-H-0518 CONTACTOR 1M FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 23: Field Wiring Disconnect - Cooling Unit With Gas Heat Without VFD Option unit. Refer to Table 8 for control wire sizing and maximum Thermostat Wiring (Not applicable to units with VFD) length.

  • Page 20: Typical Electronic Thermostat Field Wiring

    5167515-YIM-H-0518 CONTROL TERMINAL THERMOSTAT BLOCK TERMINALS SD-24 Smoke Detector 24 VAC Class 2 SD-24 Jumper Located on Harness TERMINALS ON A (If Smoke Detector Is Used) (If No Smoke Detector) LIMITED NUMBER OF THERMOSTATS SD-R 24V Output Second stage ot required on single stage he g units.

  • Page 21: Electrical Data

    5167515-YIM-H-0518 Table 9: Electrical Data ZH078-150 Standard Motor - Without Powered Convenience Outlet OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size...
  • Page 22 5167515-YIM-H-0518 ZH078-150 Standard Motor - Without Powered Convenience Outlet (Continued) OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ (Amps)
  • Page 23 5167515-YIM-H-0518 ZH078-150 Hi Static Motor - Without Powered Convenience Outlet OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ Pwr...
  • Page 24 5167515-YIM-H-0518 ZH078-150 Hi Static Motor - Without Powered Convenience Outlet (Continued) OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ Pwr...
  • Page 25 5167515-YIM-H-0518 ZH078-150 Standard Motor - With Powered Convenience Outlet OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ Pwr (Amps)
  • Page 26 5167515-YIM-H-0518 ZH078-150 Standard Motor - With Powered Convenience Outlet (Continued) OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ Pwr...
  • Page 27 5167515-YIM-H-0518 ZH078-150 Hi Static Motor - With Powered Convenience Outlet OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ Pwr...
  • Page 28 5167515-YIM-H-0518 ZH078-150 Hi Static Motor - With Powered Convenience Outlet (Continued) OD Fan Supply Compressors Motors Blower Conv Electric Heat Option Max Fuse Max Fuse (each) Size (each) Motor Motor Outlet w/Pwr Breaker Breaker Volt (Tons) (Amps) Size Size w/ Pwr...

  • Page 29: Zh078-150 Physical Data

    5167515-YIM-H-0518 Table 10: ZH078-150 Physical Data Models Component ZH078 ZH090 ZH102 ZH120 ZH150 Nominal Tonnage 12.5 AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (Btu) 81000 93000 107000 125000 156000 AHRI net capacity (Btu) 77000 88000 100000 118000 150000 11.7...
  • Page 30 5167515-YIM-H-0518 Table 10: ZH078-150 Physical Data (Continued) Models Component ZH078 ZH090 ZH102 ZH120 ZH150 Nominal Tonnage 12.5 CONDENSER FAN DATA Quantity of fans Fan diameter (Inch) Type Prop Prop Prop Prop Prop Drive type Direct Direct Direct Direct Direct Quantity of motors Motor HP each No.

  • Page 31: Optional Electric Heat

    5167515-YIM-H-0518 These CSA approved heaters are located within the central Optional Electric Heat compartment of the unit with the heater elements extending in The factory-installed heaters are wired for single point power to the supply air chamber. supply. Power supply need only be brought into the single point Fuses are supplied, where required, by the factory.

  • Page 32: Optional Gas Heat

    5167515-YIM-H-0518 Optional Gas Heat These gas-fired heaters have aluminized-steel or optional stainless steel, tubular heat exchangers with spark ignition. OPTIONAL NOTE: On VAV units, individual VAV boxes must be fully open COIL in heating mode to insure airflow falls within specified Temperature Rise range.

  • Page 33: Gas Heat Minimum Supply Air

    5167515-YIM-H-0518 Table 13: Gas Heat Minimum Supply Air Supply Air (CFM) Size Model Heat Size Cooling Heating (Tons) 1950 3250 1950 3250 (6.5) 1950 3250 1950 3250 2250 3750 2250 3750 (7.5) 2250 3750 2250 3750 2550 4250 2550 4250 (8.5) 2550 4250...

  • Page 34: Options/Accessories

    5167515-YIM-H-0518 For satisfactory operation, LP gas pressure must be 10.5 inch electric heaters are fused and intended for use with single point W.C. at the unit under full load. Maintaining proper gas power supply. pressure depends on three main factors: Smoke Detectors The vaporization rate which depends on the temperature of the liquid and the “wetted surface”...

  • Page 35: Optional Variable Air Volume (Vav)

    5167515-YIM-H-0518 the assembly. Field installed Motorized Outdoor Damper the transducer to a static pressure tap (field supplied) in the accessories include complete instructions for installation. supply duct located at a point where constant pressure is expected. To prevent an unstable signal due to air turbulence, there should be no obstructions, turns or VAV terminal boxes Economizer up- or down-stream of the sensing tube location for at least a...

  • Page 36: Simplified Vfd Wiring

    5167515-YIM-H-0518 also require various minimum clearances to allow for adequate internal cooling of the drive during operation. The unit comes with a mounting bracket installed in the Blower If the unit is operated with the manual bypass switch in Access compartment which may accommodate other vendor's the LINE (BYPASS) position and there are VAV boxes drives depending on their size.

  • Page 37: Optional Hot Gas Bypass (Hgbp)

    5167515-YIM-H-0518 shielded cable is recommended for the above control wiring must drop to no greater than RAT plus 9°F to enter free cooling connections. For VFD-ready units also equipped with gas/ again. electric heat, a terminal block located in the unit's control box Free cooling is no longer available if the outside air enthalpy and connected to the VAV board's "VAV BOX"...

  • Page 38: Power Exhaust

    5167515-YIM-H-0518 Once a compressor output is turned ON, the economizer c. Modulating Power Exhaust dampers continue to modulate to control the supply air d. Exhaust VFD Installed temperature to the Economizer Setpoint. e. Building Pressure Sensor Enabled At no time will a compressor output be turned ON if the f.

  • Page 39: Smart Equipment™ Economizer Board Details

    5167515-YIM-H-0518 Figure 28: SE-ECO1001-0 Economizer Controller Table 14: Smart Equipment™ Economizer Board Details Board Cover Description Function & Comments Label Label Directional orientation: viewed with the center text of the cover label upright ANALOG INPUTS Terminal at left on upper edge of economizer board 24 VAC common/0-10 VDC negative for Connects through circuit trace to 24V~ IN pin COM economizer actuator position feedback...
  • Page 40 5167515-YIM-H-0518 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label EconCtrlr parameter reports UCB-to-economizer board SA BUS communication status. Positive of the VDC (typically, a fluctuating 1.5 to 3.5 volts reading to C; at least 0.25 volts lower –...
  • Page 41 5167515-YIM-H-0518 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 24 VAC hot connection to power the economizer board. 24 VAC transformer HOT Connects through circuit traces to R/24V~ terminals and pins distributed on the economizer board. ANALOG INPUTS Terminal on lower edge of economizer board 24 VAC hot supplied for the outdoor air 24V~...

  • Page 42: Supply Air Limitations

    5167515-YIM-H-0518 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 24 VAC common/0-5 VDC negative for the Connects through circuit trace to 24V~ IN pin COM building pressure sensor BINARY INPUTS at right on lower edge of economizer board Purge parameter reports input status (False with 0 VAC input- True with 24 VAC input).

  • Page 43: Belt Adjustment

    5167515-YIM-H-0518 Belt Tension The tension on the belt should be adjusted as shown in Figure 29. Procedure 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.

  • Page 44: Altitude/Temperature Correction Factors

    5167515-YIM-H-0518 Table 16: Altitude/Temperature Correction Factors Altitude (Ft.) Temp. 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 1.060 1.022 0.986 0.950 0.916 0.882 0.849 0.818 0.788 0.758 0.729 1.039 1.002 0.966 0.931 0.898 0.864 0.832 0.802 0.772 0.743 0.715 1.019 0.982...
  • Page 45 5167515-YIM-H-0518 Drive Selection Determine side or bottom supply duct Application. Determine desired airflow. Calculate or measure the amount of external static pressure. Using the operating point determined from steps 1, 2 & 3, locate this point on the appropriate supply air blower performance table.

  • Page 46: Airflow Performance - Side Duct Application

    5167515-YIM-H-0518 Airflow Performance Table 17: Airflow Performance - Side Duct Application ZH078 (6.5 Ton) Side Duct Available External Static Pressure - IWG Air Flow (CFM) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Supplied Drive Standard 1.5 HP &...
  • Page 47 5167515-YIM-H-0518 ZH120 (10 Ton) Side Duct Available External Static Pressure - IWG Air Flow (CFM) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Supplied Drive Standard 2 HP & Drive Hi Static 3 HP &...

  • Page 48: Airflow Performance - Bottom Duct Application

    5167515-YIM-H-0518 Table 18: Airflow Performance - Bottom Duct Application ZH078 (6.5 Ton) Bottom Duct Available External Static Pressure - IWG Air Flow (CFM) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Supplied Drive Standard 1.5 HP &...

  • Page 49: Rpm Selection

    5167515-YIM-H-0518 ZH120 (10 Ton) Bottom Duct Available External Static Pressure - IWG Air Flow (CFM) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Supplied Standard 2 HP & Drive Hi Static 3 HP &...

  • Page 50: Air Balance

    5167515-YIM-H-0518 Table 20: Indoor Blower Specifications Motor Motor Sheave Blower Sheave Size Model Datum Dia. Datum Dia. Belt (Tons) Eff. Frame Bore (in.) Model Bore (in.) Model (in.) (in.) 1-1/2 1725 1.15 3.4 - 4.4 1VM50 AK74 (6.5) 1725 1.15 3.4 - 4.4 1VM50 AK64...

  • Page 51: Dry Coil Delta P

    Failure to properly adjust the total system air quantity measurement, be certain that the air filters are clean. can result in extensive blower damage. Determine the number of turns the variable motor sheave is open. ZH078 0.45 ZH102 ZH090 ZH120 ZH150 0.35...

  • Page 52: Motor Sheave Datum Diameters

    5167515-YIM-H-0518 EXAMPLE Supply Air Drive Adjustment A 12.5 ton unit was selected to deliver 4,000 CFM with a 3 HP motor, but the unit is delivering 3,800 CFM. The variable pitch motor sheave is set at 2 turns open. Before making any blower speed changes review the Use the equation to determine the required DD for the new installation for any installation errors, leaks or undesirable motor sheave,...

  • Page 53: Operation

    5167515-YIM-H-0518 Table 23: Additional Static Resistance Electric Heat kW Size Model Cooling Only Economizer 4” Filter (Tons) 1900 0.00 0.07 0.10 0.05 0.06 0.07 0.08 0.10 2100 -0.01 0.09 0.11 0.06 0.07 0.08 0.09 0.11 2300 -0.01 0.11 0.12 0.07 0.08 0.09 0.10...
  • Page 54 5167515-YIM-H-0518 cooling the UCB will determine if a second stage VAV Cooling Supply Air Temp Lower Set point cooling output is valid as long as all safeties and time- (default 55° F) delays allow a C2 output for cooling. The C2 relay on VAV Supply Air Temp Reset Set point (default 72°...

  • Page 55: Cooling Operation Errors

    5167515-YIM-H-0518 energizes the economizer. The dampers will modulate to maintain a constant supply air temperature as monitored by the Mobile Access Portal (MAP) Gateway (Portable). discharge air sensor. If the outdoor air enthalpy is above the set point, "Y1" energizes compressor #1. •...

  • Page 56: Electric Heating Sequence Of Operations

    5167515-YIM-H-0518 The ASCD is initiated on unit start-up and on any compressor Low Ambient Cooling reset or lock-out. To determine when to operate in low ambient mode, the UCB has an Outdoor Air Temperature Sensor (OAT) with a low Electric Heating Sequence Of Operations ambient setpoint at 45ºF (default).

  • Page 57: Gas Heating Sequence Of Operations

    SWITCH elapsed. OPENS °F When the thermostat has been satisfied, heating calls are ZH078, 090 (6.5, 7.5) 208/230 ceased. The GV is immediately closed. The blower is de- energized after the fan off delay for heating has elapsed. The draft motor performs a 30-second post purge.

  • Page 58: Gas Heating Operation Errors

    5167515-YIM-H-0518 The flame detection circuitry continually tests itself. If the ICB Retry Operation finds the flame detection circuitry to be faulty, the ICB will not When a flame is lost or is not detected during an attempt to permit an ignition sequence and the draft motor is energized. If achieve ignition, a retry operation occurs.

  • Page 59: Start-Up (Cooling)

    Unit Main Limit Setting conditioned space. Refer to Table 28 for the required gas heat °F Size Opt. anticipator setting. ZH078 Table 28: Gas Heat Anticipator Setpoints ZH090 SETTING, AMPS ZH102 0.65 ZH120 Start-Up (Cooling)

  • Page 60: Checking Gas Heat Input

    5167515-YIM-H-0518 Make sure that the vent outlet and combustion air inlet are Turn “OFF” all electric power to unit. free of any debris or obstruction. Open gas heat access panel. Turn gas valve clockwise to “OFF” position (See Figure 33). Operating Instructions Checking Gas Heat Input This unit has two stages of gas heat.

  • Page 61: Gas Rate Cubic Feet Per Hour

    5167515-YIM-H-0518 Turn off all power to the unit. Table 29: Gas Rate Cubic Feet Per Hour Using the outlet pressure port on the gas valve, connect a Size of Test Dial Seconds for manometer to monitor the manifold pressure. One Rev. 1/2 cu.

  • Page 62: Charging The Unit

    5167515-YIM-H-0518 Burners/Orifices Inspection/Servicing MATE-N-LOCK HIGH & LOW GAS ADJUSTMENT CONNECTORS Before checking or changing burners, pilot or orifices, CLOSE MAIN MANUAL SHUT-OFF VALVE AND SHUT OFF ALL POWER TO THE UNIT. Open the union fitting just upstream of the unit gas valve INLET and downstream from the main manual shut-off valve in PRESSURE...

  • Page 63: Smart Equipment™ Ucb Details

    5167515-YIM-H-0518 THERMOSTAT WIRED HERE SD-24 Figure 34: Unit Control Board Table 31: Smart Equipment™ UCB Details Description Function & Comments Terminal Directional orientation: viewed with silkscreen labels upright Limit, 24 VAC power and shutdown connections from unit wiring harness at left on upper edge of UCB Monitored 24 VAC input through heat section limit If voltage is absent, indicating the heat section is over- LIMIT...
  • Page 64 5167515-YIM-H-0518 Table 31: Smart Equipment™ UCB Details (Continued) Description Function & Comments Terminal Thermostat connection strip on left edge of UCB 1st stage heating request, 24 VAC input switched Not effective for cooling-only units from R 2nd stage heating request, 24 VAC input switched Not effective for cooling-only units or units with single-stage from R heat sections...
  • Page 65 5167515-YIM-H-0518 Table 31: Smart Equipment™ UCB Details (Continued) Description Function & Comments Input required for operation; 3.625 VDC reading RAT+ to RAT– Return Air Temperature sensor input from 10KΩ with open circuit. Used in return air enthalpy calculation. RAT+ @ 77°F, Type III negative temperature coefficient Substitutes for space temperature if no other space thermistor temperature input is present.
  • Page 66 5167515-YIM-H-0518 Table 31: Smart Equipment™ UCB Details (Continued) Description Function & Comments Terminal at lower right corner of UCB Output relay circuitry is isolated from other UCB components 24 VAC hot for H1, H2, CN-FAN, AUX HGR, FAN 24V FOR OUTPUTS and the 24 VAC hot source may be from a second transformer C1 and C2 output relay contact switching in the unit...
  • Page 67 5167515-YIM-H-0518 Table 31: Smart Equipment™ UCB Details (Continued) Description Function & Comments Not effective for one stage compressor UCBs. Input is only considered if C2 output is needed; input must be present to 24 VAC hot return from refrigerant circuit 2 High allow C1 output.
  • Page 68 5167515-YIM-H-0518 Table 31: Smart Equipment™ UCB Details (Continued) Description Function & Comments Item USB connector at right of UCB Used for backup, restoration, & copying of board parameters as Type A female Universal Serial Bus connector well as board software updating through a flash drive Factory wired SA Bus connector Optional communication sub-board at center of UCB Terminal FC BUS...

  • Page 69: Cable For Fc Buses And Sa Buses In Order Of Preference . 69 33 Ignition Control Flash Codes

    5167515-YIM-H-0518 Table 32: Cable for FC Buses and SA Buses in Order of Preference Non-Plenum Applications Plenum Applications Bus and Cable Type Part Number O.D. Part Number O.D. Anixter: Anixter: CBL-22/3-FC-PLN CBL-22/3-FC-PVC 0.138 in. 0.140 in. FC Bus: 22 AWG Stranded, 3-Wire Twisted Shielded Cable Belden: B6501FE Belden®: B5501FE Anixter:...

  • Page 70: Start-Up Sheet

    5167515-YIM-H-0518 Start-Up Sheet Johnson Controls Ducted Systems...
  • Page 71 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
  • Page 72 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
  • Page 73 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
  • Page 74 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
  • Page 75 Subject to change without notice. Printed in U.S.A. 5167515-YIM-H-0518 Copyright © 2018 by Johnson Controls, Inc. All rights reserved. Supersedes: 5167515-YIM-G-0118 York International Corporation 5005 York Drive Norman, OK 73069...

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