Table of Contents
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R-410A
ZF SERIES
7-1/2 - 12-1/2 Ton
50 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ZF090-150 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Optional Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Optional Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . . . . . 27
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
1 ZF090-150 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions Imperial . . . . . . . . . . . . . . . . . . . . . . 8
3 Weights and Dimensions Metric . . . . . . . . . . . . . . . . . . . . . . . 8
4 ZF090-150 Unit Accessory Weights Imperial . . . . . . . . . . . . . 9
5 ZF090-150 Unit Accessory Weights Metric . . . . . . . . . . . . . . . 9
6 ZF090-150 Unit Physical Dimensions Imperial . . . . . . . . . . . 10
7 ZF090-150 Unit Physical Dimensions Metric . . . . . . . . . . . . 10
8 ZF090-150 Unit Clearances Imperial . . . . . . . . . . . . . . . . . . . 11
9 ZF090-150 Unit Clearances Metric . . . . . . . . . . . . . . . . . . . . 11
10 ZF Side Duct Dimensions Imperial . . . . . . . . . . . . . . . . . . . . 14
11 ZF Side Duct Dimensions Metric . . . . . . . . . . . . . . . . . . . . . . 14
12 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
13 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
14 ZF090-150 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
15 Electric Heat Minimum Supply Air Imperial . . . . . . . . . . . . . . 23
16 Electric Heat Minimum Supply Air Metric . . . . . . . . . . . . . . . 23
17 Gas Heat Minimum Supply Air Imperial . . . . . . . . . . . . . . . . . 24
18 Gas Heat Minimum Supply Air Metric . . . . . . . . . . . . . . . . . . 24
19 Gas Pipe Sizing - CapacIty of Pipe . . . . . . . . . . . . . . . . . . . . 25
20 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
®
Component Location (ZF120 Shown) . . . . . . . . . . 6
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZF090 - 120 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 9
9 ZF150 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 ZF090-150 Unit Bottom Duct Openings . . . . . . . . . . . . . . . . 12
11 ZF090-150 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . . . . 13
12 ZF090-120 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . 13
13 ZF150 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . . . . . 14
14 ZF090-150 Unit Left Duct Opening . . . . . . . . . . . . . . . . . . . . 14
15 ZF090-150 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
16 ZF090-150 Transition Roof Curb . . . . . . . . . . . . . . . . . . . . . 15
17 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 16
TABLE OF CONTENTS
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . 45
No Outdoor Air Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 47
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 48
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 48
Ignition Control Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 49
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Unit Control Board Option Setup . . . . . . . . . . . . . . . . . . . . . . . . . 55
Option Byte Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Heat Delay Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
LIST OF TABLES
21 Airflow Performance - Side Duct Application . . . . . . . . . . . . 31
22 Airflow Performance - Bottom Duct Application . . . . . . . . . . 35
23 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 39
24 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 39
25 Motor Sheave Datum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
29 Additional Static Resistance ZF090 Cabinet (Metric) . . . . . . 44
30 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
31 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 48
32 Gas Heat Limit Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
33 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 50
34 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 51
35 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
36 Unit Control Board Flash Codes . . . . . . . . . . . . . . . . . . . . . . 54
37 Heat Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
38
Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . 55
LIST OF FIGURES
19 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
20 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
23 Typical Electronic Thermostat Field Wiring . . . . . . . . . . . . . 19
24 Typical Field Wiring 24 Volt Thermostat . . . . . . . . . . . . . . . 19
25 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
26 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
27 Enthalpy Set Point Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
28 Honeywell Economizer Control W7212 . . . . . . . . . . . . . . . . 29
29 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
30 Dry Coil Delta P 50" Cabinet . . . . . . . . . . . . . . . . . . . . . . . . 40
31 Dry Coil Delta P 42" Cabinet . . . . . . . . . . . . . . . . . . . . . . . . 41
32 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
33 Typical Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
34 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
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Related Manuals for Johnson Controls York Predator ZF Series
Summary of Contents for Johnson Controls York Predator ZF Series
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Page 1: Table Of Contents
R-410A ZF SERIES 7-1/2 - 12-1/2 Ton 50 Hertz TABLE OF CONTENTS General ..........2 Air Balance . -
Page 2: General
Be sure to follow all other applicable safety precautions and codes including ANSI Z223.1 or CSA- B149.1- latest edition. Johnson Controls Unitary Products... - Page 3 • Motorized Outdoor Air Damper 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. Johnson Controls Unitary Products...
- Page 4 S = Hi Static Mtr./Horizontal Economizer (No Baro.) 4 = Smoke Detector R.A. T = Hi Static Mtr./Slab Econo./Power Exhaust (Downflow Only) U = Hi Static Mtr./Slab Econo./Barometric Relief Voltage (Downflow only) ** Only Hi Static Is Offered On ZF150 7 = 380/415-3-50 Johnson Controls Unitary Products...
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Page 5: Condenser Covering
(4) screws provided. Bracket Turn down Screws 380/415-3-50 units with factory installed Powered Convenience Outlet Option are wired for 415v power Figure 1: Unit Shipping Bracket supply. Change Tap on transformer for 380-3-50 operation. See unit wiring diagram. Johnson Controls Unitary Products... -
Page 6: Limitations
Side entry power York Sunline™ footprint to Toolless (high-efficiency compressor and control wiring the ZF Series footprints door latch w/crankcase heater) knockouts are also available (field installed accessory) ® Figure 4: Predator Component Location (ZF120 Shown) Johnson Controls Unitary Products... -
Page 7: Location
Installer must make provisions for adequate LENGTH OF FORKS MUST BE A MINIMUM OF 60 INCHES. combustion and ventilation air in accordance with section 5.3 of Air for Combustion and Ventilation of the National Fuel Gas Johnson Controls Unitary Products... -
Page 8: Weights And Dimensions Imperial
(KW) Shipping Operating 965.2 609.7 69.4 101.2 135.6 65.3 53.1 64.4 77.6 95.3 (26) 965.2 609.7 83.5 121.6 163.3 78.5 53.1 77.6 93.4 114.8 (35) 1193.8 113.9 172.8 154.7 74.4 79.8 86.2 117.5 108.9 101.2 (44) Johnson Controls Unitary Products... -
Page 9: Zf090-150 Unit Dimensions
NOTE: (XXX) Indicates Millimeters SEE DETAIL A FOR GAS INLET 11.38 (289) SEE DETAIL B (1499) (106) 59.00 4.19 FOR DRAIN LOCATION (538) LEFT 27.31 21.19 (2261) (694) 89.00 FRONT Figure 8: ZF090 - 120 Unit Dimensions Johnson Controls Unitary Products... -
Page 10: Zf090-150 Unit Physical Dimensions Imperial
24 3/16 17 3/16 6 3/16 50 3/4 119 1/2 30 3/16 24 3/16 17 3/16 6 3/16 Table 7: ZF090-150 Unit Physical Dimensions Metric Dimension (mm) Unit Model Number 1067 2261 1289 2261 1289 3035 Johnson Controls Unitary Products... -
Page 11: Zf090-150 Unit Clearances Imperial
1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge outlet. 2. Units may be installed on combustible floors made from wood or class A, B or C roof covering materials. Johnson Controls Unitary Products... -
Page 12: Top View
16 3/8 (416) NOTE: (XXX) Indicates Millimeters 18 1/16 FRONT (459) TOP VIEW Bottom power, control and convenience outlet wiring entry 3X Ø 0.875 (22) Ø 2.469 (63) Figure 10: ZF090-150 Unit Bottom Duct Openings Johnson Controls Unitary Products... -
Page 13: Zf090-150 Unit Electrical Entry
(464) Return Supply Air 2 - 3 1 /3 2 (75) 5 - 5 /3 2 (131) 3 1 - 1 1 /1 6 NOTE: (XXX) Indicates Millimeters (805) Figure 12: ZF090-120 Unit Side Duct Openings Johnson Controls Unitary Products... -
Page 14: Zf Side Duct Dimensions Imperial
Unit Model Number 27 3/4 12 1/16 27 1/2 28 1/4 18 1/16 28 1/4 18 1/4 28 1/4 18 1/16 28 1/4 18 1/4 30-3/8 (772) 4-5/16 (110) Figure 14: ZF090-150 Unit Left Duct Opening Johnson Controls Unitary Products... -
Page 15: Ductwork
America (ACCA) or as recommended by any other recognized The supply and return air duct systems should be designed for authority such as ASHRAE or SMACNA. the CFM and static pressure requirements of the job. They Johnson Controls Unitary Products... -
Page 16: Condensate Drain
POE oil can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants. Take all necessary Figure 18: Return Downflow Plenum With Panel precautions to avoid exposure of the oil to the atmosphere. Johnson Controls Unitary Products... -
Page 17: Filters
Refer to Electrical Data Table 13 to size power Code C221, and/or local ordinances. The unit must be wiring, fuses, and disconnect switch. electrically grounded in accordance with NEC and CEC as specified above and/or local codes. Johnson Controls Unitary Products... -
Page 18: Field Wiring Disconnect - Cooling Unit With/Without Electric
POWER SUPPLY Figure 21: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat CONTACTOR 1M FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 22: Field Wiring Disconnect - Cooling Unit With Gas Heat Johnson Controls Unitary Products... -
Page 19: Unit Control Board
Terminals A1 and A2 provide a relay output to close the outdoor economizer dampers when the thermostat switches to the set-back position. Figure 23: Typical Electronic Thermostat Field Wiring T-STAT UNIT CONTROL BOARD Figure 24: Typical Field Wiring 24 Volt Thermostat Johnson Controls Unitary Products... -
Page 20: Electrical Data
2TP04523650 25.4 35.3 52.2 54.9 2TP04525450 40.4 56.2 78.3 81.0 1. Minimum Circuit Ampacity. 2. Maximum Over current Protection per Standard UL 1995. 3. Fuse or HACR circuit breaker size installed at factory or field installed. Johnson Controls Unitary Products... -
Page 21: Zf090-150 Physical Data
1/25 1/25 Circuitry Type 2-pass Microchannel 2-pass Microchannel 2-pass Microchannel EVAPORATOR COIL DATA Face area (Sq. Ft.) 10.6 13.2 13.2 Rows Fins per inch Tube diameter 0.375 0.375 0.375 Circuitry Type Intertwined Intertwined Intertwined Refrigerant control Johnson Controls Unitary Products... - Page 22 1. 1ST Stage 60% of 2nd Stage 2. 1110 RPM 60 Hz. 3. 1725 RPM 60 Hz. 4. 2 In. Throwaway, Standard, MERV (Minimum Efficiency Reporting Value) 3 5. 2 In. Pleated, Optional, MERV 7 6. 4 In. Pleated, Optional, MERV 13 Johnson Controls Unitary Products...
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Page 23: Optional Electric Heat
380/415-3-50 3750 3750 3750 3750 (12.5) Table 16: Electric Heat Minimum Supply Air Metric Minimum Supply Air (C Size Model Voltage Heater kW (KW) 380/415-3-50 1.42 1.42 1.42 1.42 (35) 380/415-3-50 1.76 1.76 1.76 1.76 (44) Johnson Controls Unitary Products... -
Page 24: Optional Gas Heat
Supply Air (M Size Heat Model Cooling Heating (KW) Size 1.06 1.76 1.06 1.76 (26) 1.06 1.76 1.06 1.76 1.42 2.36 1.42 2.36 (35) 1.42 2.36 1.42 2.36 1.76 2.95 1.76 2.95 (44) 1.76 2.95 1.76 2.95 Johnson Controls Unitary Products... -
Page 25: Gas Connection
Stalastic, and compounds such as Rectorseal #5, natural gas use only. The unit may be converted in the field for Clydes’s or John Crane may be used. use with LP gas with accessory kit model number 1NP0442. Johnson Controls Unitary Products... -
Page 26: Options/Accessories
1.11 inches of water, as measured by a manometer. The detector must be tested and maintained on a regular basis according to NFPA 72 requirements and cleaned at least once a year. For specific troubleshooting and maintenance Johnson Controls Unitary Products... -
Page 27: Optional Hot Gas Bypass (Hgbp)
HGBP is optional with CV units. +2 to +10 Vdc signal with respect to the (AQ1) terminal. When the signal is below it's set point, the actuator is allowed to modulate normally in accordance with the enthalpy and mixed Johnson Controls Unitary Products... -
Page 28: Enthalpy Set Point Chart
When the signal exceeds it's set point (Demand Control Replace the top rear access panel on the unit. Ventilation Set Point) setting and there is a call for free cooling, HIGH LIMIT CURVE W7212 Figure 27: Enthalpy Set Point Chart Johnson Controls Unitary Products... -
Page 29: Supply Air Limitations
(See ‘PHASING’). Table 20: Supply Air Limitations Minimum Maximum Unit Size CFM (m /sec) CFM (m /sec) 2250 (1) 3750 (1.7) 3000 (1.4) 5000 (2.3) Figure 29: Belt Adjustment 3750 (1.7) 6250 (2.9) Johnson Controls Unitary Products... - Page 30 Table 20 and Figure 30. tension at least two times during the first 24 hours of operation. Any retensioning should fall between the min. and max. deflection force values. 5. After adjusting retighten nuts (A). Johnson Controls Unitary Products...
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Page 31: Airflow Performance - Side Duct Application
2524 1860 2.00 2182 1550 1.66 – – – – – – – – – – – – 2189 1680 1.80 – – – – – – – – – – – – – – – Johnson Controls Unitary Products... - Page 32 1.99 2.33 1.87 1.88 2.06 1.65 1.73 1.78 1.43 1.59 1.55 1.24 1.43 1.35 1.08 1.85 2.17 1.74 1.74 1.92 1.54 1.54 1.62 1.30 1.28 1.33 1.06 1.66 1.98 1.58 1.46 1.69 1.35 1.32 1.66 1.33 Johnson Controls Unitary Products...
- Page 33 1.73 1.93 1.54 2.24 3.32 2.65 2.12 2.89 2.31 1.93 2.47 1.98 1.67 2.01 1.60 1.44 1.64 1.31 2.11 3.11 2.49 1.92 2.62 2.10 1.68 2.16 1.73 1.89 2.78 2.23 1.60 2.22 1.78 1.65 2.48 1.98 Johnson Controls Unitary Products...
- Page 34 1.94 2.16 1.73 2.40 3.60 2.88 2.26 3.11 2.48 2.10 2.71 2.17 1.89 2.26 1.81 1.73 1.93 1.54 2.24 3.32 2.65 2.12 2.89 2.31 1.93 2.47 1.98 2.11 3.11 2.49 1.92 2.62 2.10 1.89 2.78 2.23 Johnson Controls Unitary Products...
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Page 35: Airflow Performance - Bottom Duct Application
2524 1860 2.00 2182 1550 1.66 – – – – – – – – – – – – 2189 1680 1.80 – – – – – – – – – – – – – – – Johnson Controls Unitary Products... - Page 36 1.49 1.29 1.03 1.90 2.23 1.79 1.80 1.98 1.59 1.66 1.72 1.38 1.53 1.51 1.20 1.40 1.33 1.07 1.75 2.07 1.65 1.62 1.82 1.45 1.45 1.55 1.24 1.57 1.89 1.51 1.41 1.64 1.32 1.38 1.71 1.37 Johnson Controls Unitary Products...
- Page 37 1.62 1.70 1.36 1.46 1.65 1.32 1.92 2.84 2.27 1.78 2.44 1.95 1.62 2.09 1.67 1.46 1.55 1.24 1.77 2.63 2.10 1.63 2.24 1.79 1.45 1.90 1.52 1.61 2.43 1.94 1.47 2.05 1.64 1.44 2.23 1.78 Johnson Controls Unitary Products...
- Page 38 “0 Turns Open” is fully closed. the supply and return air duct system. All internal resis- • Blower performance includes dry coil and 2” (51mm) throw- tances have been deducted from the total static pressure of away filters. the blower. Johnson Controls Unitary Products...
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Page 39: Air Balance
To assure a dry coil, the compressors Static Pressure (ESP). In order to obtain an accurate should be de-activated while the test is being run. measurement, be certain that the air filters are clean. Johnson Controls Unitary Products... -
Page 40: Dry Coil Delta P 50" Cabinet
PREDATOR ® 50” CABINET, 50 HZ UNITS INDOOR COIL PRESSURE DROP VS AIRFLOW ZF 150 ZF 120 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 Airflow (CFM) Figure 30: Dry Coil Delta P 50” Cabinet Johnson Controls Unitary Products... -
Page 41: Dry Coil Delta P 42" Cabinet
863979-XIM-D-0713 PREDATOR ® 42" CABINET, 50 HZ UNITS INDOOR COIL PRESSURE DROP VS AIRFLOW 0.55 ZF 090 0.45 0.35 0.25 2000 2500 3000 3500 4000 4500 Airflow (CFM) Figure 31: Dry Coil Delta P 42” Cabinet Johnson Controls Unitary Products... -
Page 42: Motor Sheave Datum
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 Unitary Products... -
Page 43: Additional Static Resistance Zf120/150 Cabinet (Imperial) . 43 27 Additional Static Resistance Zf090 Cabinet (Imperial)
3. The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct system is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation. Johnson Controls Unitary Products... -
Page 44: Additional Static Resistance Zf120/150 Cabinet (Metric)
3. The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct system is less than 62.1 Pa, the unit will deliver less M3S during full economizer operation. Johnson Controls Unitary Products... -
Page 45: Operation
20 minutes, compressor #2 is Economizer With Power Exhaust energized, provided it has not been locked-out. A unit equipped with an economizer (single or dual enthalpy) and a power exhaust operates as specified above with one Johnson Controls Unitary Products... -
Page 46: Cooling Operation Errors
If the low-pressure switch fails to close after Upon de-energizing the final compressor, the blower will the 30-second monitoring phase, the UCB will de-energize the continue to run with the economizer damper in its minimum Johnson Controls Unitary Products... -
Page 47: Electric Heating Sequence Of Operations
A suction line freezestat to protect against low evaporator temperatures due to a low airflow or a low return air temperature, (opens at 26 ± 5 °F and resets at 38 ± 5°F). Johnson Controls Unitary Products... -
Page 48: Electric Heat Operation Errors
When a flame is lost or is not detected during an attempt to conditioned space. Refer to Table 31 for the required electric achieve ignition, a retry operation occurs. A 30-second purge is heat anticipator setting. performed between ignition attempts. Johnson Controls Unitary Products... -
Page 49: Gas Heating Operation Errors
ICB will energize the draft motor. The ICB will not operate the 1.Rollout = 300°F (148.9°C), Auxiliary Limit = 200°F (93.3°C) furnace until voltage is no longer sensed at the GV. The draft motor is stopped when voltage is not sensed at the GV. Johnson Controls Unitary Products... -
Page 50: Start-Up (Cooling)
Make sure that the vent outlet and combustion air inlet are SETTING, AMPS free of any debris or obstruction. 0.65 Operating Instructions This furnace is equipped with an automatic re-ignition system. DO NOT attempt to manually light the pilot. Johnson Controls Unitary Products... -
Page 51: Checking Gas Heat Input
The intended input for each furnace is shown in Table 35. To determine the rate of gas flow (Second Stage). Turn off all other gas appliances connected to the gas meter. Johnson Controls Unitary Products... -
Page 52: Gas Heat Stages
After the high manifold pressure has been checked, adjust To service burners, complete step 4. the thermostat to call for first stage heat. Johnson Controls Unitary Products... -
Page 53: Charging The Unit
To reset all nameplate charge or 10° subcooling. ASCDs for one cycle, press and release the UCB TEST/ RESET button once. Flash codes that do and do not represent alarms are listed in Table 36. Johnson Controls Unitary Products... -
Page 54: Unit Control Board Flash Codes
EEPROM Storage Failure No Power or Control Failure 1. Non-alarm condition. Check Alarm History Reset All ASCDs for One Cycle Non Alarm Condition Green LED Flashing Current Alarm Flashed Red LED Figure 34: Unit Control Board Johnson Controls Unitary Products... -
Page 55: Unit Control Board Option Setup
AUTO position, check the room thermostat for contact between R and G in the AUTO position during calls for cooling. Johnson Controls Unitary Products... - Page 56 Y1 “OUT” for incorrect wiring. If 24 volts is not the compressor contactor, M1, and that the contactor is present at the Y1 “OUT” terminal, the UCB must be pulled in. Check for loose wiring between the contactor and replaced. the compressor. Johnson Controls Unitary Products...
- Page 57 For units with factory installed economizers, the UCB is the contactor is pulled in. Check for loose wiring between programmed to lock out compressor operation when the the contactor and the compressor. LAS set point is reached. Johnson Controls Unitary Products...
- Page 58 LED. If the compressor is locked out, remove any call for cooling. This will reset any compressor On calls for heating, the draft motor operates and the furnace lock outs. lights but the supply air blower motor does not energize after a Johnson Controls Unitary Products...
- Page 59 “BURNER/ORIFICE INSPECTION/SERVICING”. Clean or ignited when the fan switch is in the “AUTO” position, replace burner orifices and burners as needed. check the room thermostat for contact between R and G during “W1” calls. Johnson Controls Unitary Products...
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Page 60: 863979-Xim-D-0713
Subject to change without notice. Printed in U.S.A. 863979-XIM-D-0713 Copyright © 2014 by Johnson Controls, Inc. All rights reserved. Supersedes: 863979-XIM-C-1012 Johnson Controls Unitary Products 5005 York Drive Norman, OK 73069...
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