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R-410A
ZW 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Optional Variable Air Volume (VAV) . . . . . . . . . . . . . . . . . . . . 34
Optional Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . . . . . 36
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Single Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1 ZWT06 thru T12 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZWT06 thru T12 Unit Accessory Weights . . . . . . . . . . . . . . . . 9
4 ZWT06 thru T12 Unit Physical Dimensions . . . . . . . . . . . . . . 11
5 ZWT06 thru T12 Unit Clearances . . . . . . . . . . . . . . . . . . . . . 11
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Left/End Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . 31
12 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 32
13 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . . . 32
14 Smart Equipment™ Economizer Board Details . . . . . . . . . . 38
15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
16 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 43
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 ZW Component Location (ZWT10 Shown) . . . . . . . . . . . . . . . 6
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZWT06 thru T10 Physical Dimensions . . . . . . . . . . . . . . . . . . 9
9 ZWT12 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 10
10 ZWT06 thru T12 Unit Bottom Duct Openings . . . . . . . . . . . . 12
11 ZWT06 thru T12 Unit Electrical Entry . . . . . . . . . . . . . . . . . . 13
12 ZWT06 thru T10 Unit Side Duct Openings . . . . . . . . . . . . . . 13
13 ZWT12 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . . . . 14
14 ZWT06 thru T12 Unit Left Duct Opening . . . . . . . . . . . . . . . 14
15 ZWT06 thru T12 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . 15
16 ZWT06 thru T12 Transition Roof Curb . . . . . . . . . . . . . . . . . 15
17 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 16
TABLE OF CONTENTS
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Free Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Airflow Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . 52
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 55
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 55
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 56
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 56
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Control Board Navigation Components . . . . . . . . . . . . . . . . . . . . 61
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
LIST OF TABLES
17 Airflow Performance - Side Duct Application . . . . . . . . . . . . 45
18 Airflow Performance - Bottom Duct Application . . . . . . . . . . 47
19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 49
21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 49
22 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . . . . 51
23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 52
24 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
25 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 56
26 Gas Heat Limit Control Settings . . . . . . . . . . . . . . . . . . . . . . 57
27 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 58
28 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 59
29 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
30 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . . . . 62
32 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 67
LIST OF FIGURES
19 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
20 Save Side Panels For Economizer Hood Tops . . . . . . . . . . 16
21 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Heat and All Units With VFD Option . . . . . . . . . . . . . . . . . . 18
VFD Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
24 Typical Electronic Thermostat Field Wiring . . . . . . . . . . . . . 20
25 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
26 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
27 Simplified VFD Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
28 SE-ECO1001-1 Economizer Controller . . . . . . . . . . . . . . . . 38
29 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
30 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 43
31 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
32 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
33 Typical Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
34 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5803638-TIM-A-0220
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Table of Contents
Related Manuals for Johnson Controls ZW Series
Summary of Contents for Johnson Controls ZW Series
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Page 1: Table Of Contents
R-410A ZW SERIES W/SMART EQUIPMENT™ 6-1/2 - 12-1/2 Ton 60 Hertz TABLE OF CONTENTS General ..........2 Dual Enthalpy Changeover . -
Page 2: General
Observe all precautions in the literature, labels, and tags accompanying the equipment whenever working on air conditioning equipment. Be sure to follow all other applicable safety precautions and codes including ANSI Z223.1 or CSA- B149.1- latest edition. Johnson Controls Ducted Systems... - Page 3 This system uses R-410A Refrigerant which operates at • Manual Outdoor Air Damper (0-100%) higher pressures than R-22. No other refrigerant may be • Manual Outdoor Air Damper (0-35%) used in this system. • Gas Heat Propane Conversion Kit Johnson Controls Ducted Systems...
- Page 4 Y = Options 4 & 5 Z = Options 3, 4 & 5 Options 1 = Disconnect 2 = Non-Pwr'd Conv. Outlet 3 = Smoke Detector S.A. 4 = Smoke Detector R.A. 5 = Pwr'd Conv. Outlet Johnson Controls Ducted Systems...
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Page 5: Installation
In U.S.A.: Remove the condenser coil external protective covering National Electrical Code, ANSI/NFPA No. 70 - Latest prior to operation. Edition National Fuel Gas Code, ANSI Z223.1 - Latest Edition Johnson Controls Ducted Systems... -
Page 6: Zw Component Location (Zwt10 Shown)
Compressor #1 access Side entry power DHB/DUC/HC/DUS footprint to Toolless (high-efficiency compressor and control wiring the ZW Series footprints are door latch w/crankcase heater) knockouts also available (field-installed accessory) Figure 4: ZW Component Location (ZWT10 Shown) -
Page 7: Location
If a unit is to be installed on a roof curb other than a varnishes, hydrochloric acid, cements and glues, TempMaster roof curb, gasketing must be applied to all antistatic fabric softeners for clothes dryers, masonry surfaces that come in contact with the unit underside. acid washing materials. Johnson Controls Ducted Systems... -
Page 8: Weights And Dimensions
Table 2: Weights and Dimensions Size Weight (lbs.) Center of Gravity 4 Point Load Location (lbs.) 6 Point Load Location (lbs.) Model (Tons) Shipping Operating 1035 1030 (6.5) 1055 1050 (7.5) 1065 1060 (8.5) 1075 1070 (10) 1285 1280 (12.5) Johnson Controls Ducted Systems... -
Page 9: Zwt06 Thru T12 Unit Accessory Weights
29.69 15.25 15.38 59.00 15.38 2X Ø 24.38 SEE DETAIL A FOR GAS INLET 11.38 SEE DETAIL B 59.00 4.19 FOR DRAIN LOCATION LEFT 27.31 21.19 89.00 FRONT Figure 8: ZWT06 thru T10 Physical Dimensions Johnson Controls Ducted Systems... -
Page 10: Zwt12 Physical Dimensions
29.03 29.03 14.85 Ø 24.58 TYP. 4 PL. 15.23 See detail A for gas inlet 11 3/8 See detail B for drain location 21 3/16 LEFT 4 3/16 FRONT 27 5/16 Figure 9: ZWT12 Physical Dimensions Johnson Controls Ducted Systems... -
Page 11: Zwt06 Thru T12 Unit Physical Dimensions
1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge outlet. 2. Units may be installed on combustable floors made from wood or class A, B or C roof covering materials. Johnson Controls Ducted Systems... -
Page 12: Zwt06 Thru T12 Unit Bottom Duct Openings
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: ZWT06 thru T12 Unit Bottom Duct Openings Johnson Controls Ducted Systems... -
Page 13: Zwt06 Thru T12 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: ZWT06 thru T10 Unit Side Duct Openings Johnson Controls Ducted Systems... -
Page 14: Side Duct Dimensions
28 1/4 18 1/16 28 1/4 18 1/4 ZWT10 28 1/4 18 1/16 28 1/4 18 1/4 ZWT12 28 1/4 18 1/16 28 1/4 18 1/4 4-5/16 Figure 14: ZWT06 thru T12 Unit Left Duct Opening Johnson Controls Ducted Systems... -
Page 15: Left/End Duct Dimensions
50-1/2 COMPRESSOR SECTION FRONT 8 or 14 Figure 15: ZWT06 thru T12 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: ZWT06 thru T12 Transition Roof Curb Johnson Controls Ducted Systems... -
Page 16: Ductwork
The side condensate drain is reversible and maybe re-oriented to NOTE: Orientation. Panel is “insulation” side up. the rear of the cabinet to facilitate condensate piping. A condensate drain connection is available through the base pan Johnson Controls Ducted Systems... -
Page 17: Compressors
Rating Plate and Table 1. 208/230-3-60 and 380/415-3-50 units control transformers are factory wired for 230v and 415v power supply respectively. Change tap on transformer for 208- 3-60 or 380-3-50 operation. See unit wiring diagram. Johnson Controls Ducted Systems... -
Page 18: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat And All Units With Vfd Option
TERMINAL BLOCK TB1 FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 22: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat and All Units With VFD Option Johnson Controls Ducted Systems... -
Page 19: Field Wiring Disconnect - Cooling Unit With Gas Heat Without Vfd Option
5803638-TIM-A-0220 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 Johnson Controls Ducted Systems... -
Page 20: Control Wire Sizes
Figure 24: Typical Electronic Thermostat Field Wiring 208/230-3-60 and 380/415-3-50 units control transformers are factory wired for 230v and 415v power supply respectively. Change tap on transformer for 208- 3-60 or 380-3-50 operation. See unit wiring diagram. Johnson Controls Ducted Systems... -
Page 21: Electrical Data
69.5 57.7 80.6 87.5 81.8 110.8 117.6 (8.5) None 20.8 10.8 20.8 21.7 31.4 34.1 28.9 40.4 43.1 40.9 55.4 58.1 None 18.6 20.4 18.6 20.4 1.35 17.3 24.6 26.9 23.1 31.9 34.1 32.7 43.9 46.1 Johnson Controls Ducted Systems... - Page 22 None 25.8 27.6 18.0 17.3 26.2 28.4 62.0 13.5 24.0 23.1 33.4 35.6 34.0 32.7 45.4 47.6 54.0 52.0 56.5 58.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 23 3.03 43.3 66.1 57.7 84.1 81.8 114.3 121.1 (8.5) None 22.1 24.3 10.8 22.1 24.3 21.7 35.8 28.9 44.8 40.9 59.8 None 19.8 21.6 19.8 21.6 1.35 17.3 26.1 28.4 23.1 33.4 35.6 32.7 45.4 47.6 Johnson Controls Ducted Systems...
- Page 24 None 27.4 29.2 18.0 17.3 28.2 30.4 62.0 13.5 24.0 23.1 35.4 37.6 34.0 32.7 47.4 49.6 54.0 52.0 58.5 60.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 25 43.3 75.1 57.7 93.1 81.8 123.3 130.1 (8.5) None 25.8 10.8 25.8 21.7 37.6 40.4 28.9 46.6 49.4 40.9 61.6 64.4 None 22.6 24.4 22.6 24.4 1.35 17.3 29.6 31.9 23.1 36.9 39.1 32.7 48.9 51.1 Johnson Controls Ducted Systems...
- Page 26 None 29.8 31.6 18.0 17.3 31.2 33.4 62.0 13.5 24.0 23.1 38.4 40.6 34.0 32.7 50.4 52.6 54.0 52.0 61.5 63.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 27 78.6 85.5 57.7 96.6 103.5 81.8 126.8 133.6 (8.5) None 27.1 29.3 10.8 27.1 29.3 21.7 39.3 28.9 48.3 40.9 63.3 None 23.8 25.6 23.8 25.6 1.35 17.3 31.1 33.4 23.1 38.4 40.6 32.7 50.4 52.6 Johnson Controls Ducted Systems...
- Page 28 None 31.4 33.2 18.0 17.3 33.2 35.4 62.0 13.5 24.0 23.1 40.4 42.6 34.0 32.7 52.4 54.6 54.0 52.0 63.5 65.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
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Page 29: Physical Data
2-pass Microchannel 2-pass Microchannel 2-pass Microchannel 2-pass Microchannel 2-pass Microchannel EVAPORATOR COIL DATA Face area (Sq. Ft.) 13.2 13.2 13.2 13.2 13.2 Rows Fins per inch Tube diameter 0.375 0.375 0.375 0.375 0.375 Circuitry Type Intertwined Intertwined Intertwined Intertwined Intertwined Refrigerant control Johnson Controls Ducted Systems... - Page 30 Stage 60% of Full Capacity. 4. ZWT10, ZWT12 have crankcase heaters standard. 5. 2 In. Throwaway, Standard, MERV (Minimum Efficiency Reporting Value) 3. 6. 2 In. Pleated, Optional, MERV 8. 7. 4 In. Pleated, Optional, MERV 13. Johnson Controls Ducted Systems...
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Page 31: Optional Electric Heat
Refer to the Pipe Sizing Table 12. The heating value of the gas may differ with locality. The value should be checked with the local gas utility. Figure 25: Side Entry Gas Piping Johnson Controls Ducted Systems... -
Page 32: Gas Pipe Sizing - Capacity Of Pipe
The gas supply should be a separate line and installed in accordance with all safety codes as prescribed under “Limitations”. Johnson Controls Ducted Systems... -
Page 33: Options/Accessories
W.C. at the unit under full load. Maintaining proper gas power supply. pressure depends on three main factors: The vaporization rate which depends on the temperature of the liquid and the “wetted surface” area of the container(s). Johnson Controls Ducted Systems... -
Page 34: Optional Variable Air Volume (Vav)
(1/4" diameter) must be field supplied and the assembly. Field installed Motorized Outdoor Damper installed from the transducer to both the ductwork and to the accessories include complete instructions for installation. atmosphere. Connect the tubing from the 'HIGH' pressure tap of Johnson Controls Ducted Systems... - Page 35 • DRIVE - routes power through the VFD for modulating nuts. After removing the wire nuts, connect the wires to the control of the indoor blower motor. field-installed VFD per the VFD wiring diagram (See Figure 27). Johnson Controls Ducted Systems...
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Page 36: Optional Hot Gas Bypass (Hgbp)
• Return and outside air dry bulb and return and outside air outdoor air supply. humidity = dual enthalpy • If either the return or outside air dry bulb sensors are unreliable, free cooling is not available Johnson Controls Ducted Systems... -
Page 37: Free Cooling Operation
Economizer Damper Position for Exhaust Fan If the economizer output goes to minimum position and the SAT is less than Economizer Setpoint -1°F, the control starts a 12- minute timer to de-energize a compressor output. Johnson Controls Ducted Systems... -
Page 38: Smart Equipment™ Economizer Board Details
USB flash drive) Lit/flickering indicates UCB-to-economizer board SA bus Green UCB SA bus communication SA BUS SA BUS communication is currently active, off indicates the economizer transmission indicator board is awaiting SA bus communication Johnson Controls Ducted Systems... - Page 39 Non-Modulating, Modulating Damper or Variable EX-FAN fan contactor coil/VFD enable relay coil Frequency Fan. Used to turn on/enable the power exhaust fan motor. 24 VAC common/0-10 VDC negative for Connects through circuit trace to 24V~ IN pin COM economizer actuator Johnson Controls Ducted Systems...
- Page 40 24 VAC common/0-10 VDC negative for the air Connects through circuit trace to 24V~ IN pin COM monitoring station sensor 24 VAC hot supplied for the building pressure 24V~ Connects through circuit trace to 24V~ IN pin HOT sensor Johnson Controls Ducted Systems...
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Page 41: Supply Air Limitations
Change the phasing of the Field Line Connection at the factory or field supplied disconnect to The tension on the belt should be adjusted as shown in Figure 29. obtain proper rotation. (Scroll compressors operate in only one Johnson Controls Ducted Systems... -
Page 42: Belt Adjustment
Air density correction factors are shown in Table 16 and Figure 30. Johnson Controls Ducted Systems... -
Page 43: Altitude/Temperature Correction Factors
This value must be corrected for elevation. Example 2: A system, located at 5,000 feet of elevation, is to deliver 6,000 CFM at a static pressure of 1.5". Use the unit BHP at 5,000 ft. = 3.2 x .832 = 2.66 Johnson Controls Ducted Systems... - Page 44 5 Turns 4 Turns 3 Turns 2 Turns 1 Turn Fully Model (Tons) Sheave Sheave Open Open Open Open Open Open Closed 1.73 1VM50 AK74 1035 1079 1126 2.30 1VM50 AK64 1039 1094 1150 1207 1256 1308 Johnson Controls Ducted Systems...
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Page 45: Airflow Performance
1. Blower performance includes gas heat exchangers and 2” filters. See STATIC RESISTANCE table for additional applications. 2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP. 3. kW = BHP x 0.932. Johnson Controls Ducted Systems... - Page 46 1. Blower performance includes gas heat exchangers and 2” filters. See STATIC RESISTANCE table for additional applications. 2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP. 3. kW = BHP x 0.932. Johnson Controls Ducted Systems...
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Page 47: Airflow Performance - Bottom Duct Application
1. Blower performance includes gas heat exchangers and 2” filters. See STATIC RESISTANCE table for additional applications. 2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP. 3. kW = BHP x 0.932. 4. Field Supplied Drive. Johnson Controls Ducted Systems... -
Page 48: Rpm Selection
2.30 1VM50 AK89 (8.5) 3.45 1VM50 AK74 1035 1084 1134 2.30 1VM50 AK84 (10) 3.45 1VM50 AK74 1035 1084 1134 3.45 1VM50 AK74 1035 1084 1134 (12.5) 5.75 1VP56 BK77 1052 1095 1136 1175 1216 1272 Johnson Controls Ducted Systems... -
Page 49: Air Balance
Re-checking set screws replace the dot plugs. after 10-12 hrs. run time is recommended. Tighten blower pulley and motor sheave set screws after any adjustments. Re-check set screws after 10-12 hrs. run time is recommended. Johnson Controls Ducted Systems... -
Page 50: Dry Coil Delta P
Determine the number of turns the variable motor sheave is open. ZWT06 ZWT07 0.45 ZWT08 ZWT10 ZWT12 0.35 0.25 0.15 0.05 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 Airflow (CFM) Figure 31: Dry Coil Delta P Johnson Controls Ducted Systems... -
Page 51: Motor Sheave Datum Diameters
CFM. Adjustments of the blower speed and belt tension are REQUIRED. Verify proper sheave alignment; tighten blower pulley and motor sheave set screws after these adjustments. Re-checking set screws after 10-12 hrs. run time is recommended. Johnson Controls Ducted Systems... -
Page 52: Operation
If a Y2 call is present it is passed to the Unit Control Board seconds minimum off. (UCB) which then determines whether the requested operation is available and if so, which components to energize. With a Johnson Controls Ducted Systems... - Page 53 #1 is energized. If compressor #1 is active for first stage cooling efficiency. or the first compressor is locked-out, compressor #2 is energized. In free-cooling mode, if the call for the second stage Johnson Controls Ducted Systems...
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Page 54: Cooling Operation Errors
If the condenser motor failure, (opens at 625 ± 25 psig). low-pressure switch opens for greater than 5 seconds, the UCB Johnson Controls Ducted Systems... -
Page 55: Electric Heating Sequence Of Operations
The thermostat will cycle the electric heat to satisfy the (8.5, 10, 12.5) heating requirements of the conditioned space. Reset Remove the call for heating by lowering the thermostat setting lower than the conditioned space temperature. Johnson Controls Ducted Systems... -
Page 56: Gas Heating Sequence Of Operations
2 seconds, the draft motor is energized and begin. the GV is kept off. The ICB halts any operation until a flame is not detected. Once the flame detection is lost, the ICB performs Johnson Controls Ducted Systems... -
Page 57: Gas Heat Limit Control Settings
“Limit Switch”. 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 Johnson Controls Ducted Systems... -
Page 58: Start-Up (Cooling)
Complete the following checks before starting the unit. Open gas heat access panel. Check the type of gas being supplied. Be sure that it is the Turn gas valve clockwise to “OFF” position (See Figure 33). same as listed on the unit nameplate. Johnson Controls Ducted Systems... -
Page 59: Checking Gas Heat Input
Using the outlet pressure port on the gas valve, connect a manometer to monitor the manifold pressure. Remove plastic cap covering HI and LO pressure adjustment screws. Turn on power to the unit. Set thermostat to call for second stage heat and start furnace. Johnson Controls Ducted Systems... -
Page 60: Charging The Unit
Before checking or changing burners, pilot or orifices, CLOSE Figure 33: Typical Gas Valve MAIN MANUAL SHUT-OFF VALVE AND SHUT OFF ALL POWER TO THE UNIT. Charging The Unit All ZJ units use Thermal Expansion Devices. Charge the unit to nameplate charge. Johnson Controls Ducted Systems... -
Page 61: Control Board Navigation Components
Equipment™ control, refer to the Smart Equipment™ Local LCD on Unit Control Board. Controls Sequence of Operation Overview LIT- Mobile Access Portal (MAP) Gateway (Portable). 12011950. • Source 1 P/N S1-JC-MAP1810-OP THERMOSTAT WIRED HERE SD-24 Figure 34: Unit Control Board Johnson Controls Ducted Systems... -
Page 62: Smart Equipment™ Ucb Details
SD-24 and R 24 VAC common for thermostat power LEDs on left edge of UCB POWER Green UCB power indicator Lit indicates 24 VAC is present at C and 24V terminals Johnson Controls Ducted Systems... - Page 63 Input required for variable air volume units. Used in VAV indoor DCT PRS+ w.c. sensor blower operation. Optional input; switch closure for greater than 15 seconds DFS (upper pin) 24 VAC hot return from Dirty Filter Switch during indoor blower operation initiates a notification alarm Johnson Controls Ducted Systems...
- Page 64 Not effective for one stage compressor UCBs. If demand is present and permissions allow compressor 2 operation; output 24 VAC hot output for compressor 2 with compressor cooling, comfort ventilation cooling or heat pump heating demands Johnson Controls Ducted Systems...
- Page 65 1.5 to 3.5 volts reading to C; at least 0.25 volts lower – Communication for SA BUS devices than +) SA BUS communication circuit to optional economizer board, 4-stage board, fault detection & diagnostics board, netstat and/or Multi Touch gateway Johnson Controls Ducted Systems...
- Page 66 Green communication board Isolated Power Lit indicates the UCB is supplying power to the communication ISO PWR indicator sub-board 1. When wiring unit and other devices using the SA Bus and FC Bus, see Table 31. Johnson Controls Ducted Systems...
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Page 67: Cable For Fc Buses And Sa Buses In Order Of Preference . 67 32 Ignition Control Flash Codes
Energized With W1 Off Second Stage Gas Valve Gas Valve Energized With First Stage Gas Valve Off Gas Flow Gas Pressure Ignition Lockout Gas Valve Flame Sensor STEADY OFF No Power Or Control Failure 24VAC or Control Johnson Controls Ducted Systems... -
Page 68: Start-Up Sheet
5803638-TIM-A-0220 Start-Up Sheet Johnson Controls Ducted Systems... - Page 69 5803638-TIM-A-0220 Johnson Controls Ducted Systems...
- Page 70 5803638-TIM-A-0220 Johnson Controls Ducted Systems...
- Page 71 5803638-TIM-A-0220 Johnson Controls Ducted Systems...
- Page 72 5803638-TIM-A-0220 Johnson Controls Ducted Systems...
- Page 73 Subject to change without notice. Printed in U.S.A. 5803638-TIM-A-0220 Copyright © 2020 by Johnson Controls, Inc. All rights reserved. Supersedes: 5565606-TIM-B-1018 York International Corporation 5005 York Drive Norman, OK 73069...
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