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R-410A
J**ZH SERIES W/SMART EQUIPMENT™
6-1/2 - 12-1/2 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rigging and handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Side panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power and control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Optional electric heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Optional gas heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Options and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Optional variable air volume . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Optional hot gas bypass (HGBP). . . . . . . . . . . . . . . . . . . . . . . 37
Economizer sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Dry bulb changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Single enthalpy changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1 Component location table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 J06 through 12ZH unit limitations . . . . . . . . . . . . . . . . . . . . . . 8
3 Weights and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 J06 through 12ZH unit accessory weights . . . . . . . . . . . . . . 10
5 J06 through 12ZH unit physical dimensions . . . . . . . . . . . . . 11
6 Gas inlet and drain components . . . . . . . . . . . . . . . . . . . . . . 12
7 J06 through 12ZH unit clearances. . . . . . . . . . . . . . . . . . . . . 12
8 Side duct dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Left/end duct dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10 Roof curb components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11 Control wire sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
12 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
13 J06 through 12ZH physical data . . . . . . . . . . . . . . . . . . . . . . 30
14 Electric heat minimum supply air . . . . . . . . . . . . . . . . . . . . . . 32
15 Gas pipe sizing - capacity of pipe . . . . . . . . . . . . . . . . . . . . . 33
16 Gas heat minimum supply air . . . . . . . . . . . . . . . . . . . . . . . . 33
17 Supply air limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
1 Unit shipping bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 J**ZH component location . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Unit 4 point load weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Unit 6 point load weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Center of gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8 J06 through 10ZH physical dimensions . . . . . . . . . . . . . . . . 10
9 J12ZH physical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 11
10 J06 through 12ZH unit bottom duct openings . . . . . . . . . . . . 13
11 J06 through 12ZH unit electrical entry . . . . . . . . . . . . . . . . . 14
12 J06 through 10ZH unit side duct openings . . . . . . . . . . . . . . 14
13 J12ZH unit side duct openings . . . . . . . . . . . . . . . . . . . . . . . 15
14 J06 through 12ZH unit left/end duct opening . . . . . . . . . . . . 15
15 J06 through 12ZH roof curb . . . . . . . . . . . . . . . . . . . . . . . . . 16
16 J06 through 12ZH transition roof curb . . . . . . . . . . . . . . . . . 16
17 Side panels with hole plugs . . . . . . . . . . . . . . . . . . . . . . . . . 17
18 Return down flow plenum with panel . . . . . . . . . . . . . . . . . . 17
Table of contents
Dual enthalpy changeover. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Free cooling operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power exhaust. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Smart Equipment™ economizer board . . . . . . . . . . . . . . . . . . 39
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
Cooling start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Gas heat start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Checking gas heat input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Charging the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Smart Equipment™ unit control board . . . . . . . . . . . . . . . . . . . . . 63
Start-up sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
List of tables
18 Altitude/temperature correction factors . . . . . . . . . . . . . . . . . 44
19 Airflow performance - side duct application . . . . . . . . . . . . . 46
20 Airflow performance - bottom duct application . . . . . . . . . . . 48
21 RPM selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
22 Indoor blower specifications . . . . . . . . . . . . . . . . . . . . . . . . . 50
23 Power exhaust specifications . . . . . . . . . . . . . . . . . . . . . . . . 50
24 Motor sheave datum diameters . . . . . . . . . . . . . . . . . . . . . . 52
25 Additional static resistance . . . . . . . . . . . . . . . . . . . . . . . . . . 53
26 Electric heat limit setting 50 in. cabinet . . . . . . . . . . . . . . . . . 56
27 Electric heat limit setting 42 in. cabinet . . . . . . . . . . . . . . . . . 57
28 Electric heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . 57
29 Gas heat limit control settings . . . . . . . . . . . . . . . . . . . . . . . . 59
30 Gas heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . . . 59
31 Gas rate cubic feet per hour . . . . . . . . . . . . . . . . . . . . . . . . . 61
32 Gas heat stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
34 Ignition control flash codes . . . . . . . . . . . . . . . . . . . . . . . . . . 69
List of figures
19 Discharge panel in place . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
20 Side panels for economizer hood tops . . . . . . . . . . . . . . . . . 18
21 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
heat and all units with a VFD option . . . . . . . . . . . . . . . . . . . 20
VFD option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
24 Typical electronic thermostat field wiring . . . . . . . . . . . . . . . 21
25 Side entry gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
26 Bottom entry gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
27 Simplified VFD wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
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
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Related Manuals for Johnson Controls J ZH Series
Summary of Contents for Johnson Controls J ZH Series
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Page 1: Table Of Contents
R-410A J**ZH SERIES W/SMART EQUIPMENT™ 6-1/2 - 12-1/2 Ton 60 Hertz Table of contents General ..........2 Dual enthalpy changeover. -
Page 2: General
5566217-JIM-C-1019 General Johnson Controls J06-12ZH units are single package air conditioners with optional gas heating designed for outdoor Before you perform service or maintenance operations installation on a rooftop or slab and for non-residential use. The on the unit, turn off the main power switch to unit. - Page 3 Inspection Renewal parts As soon as you receive a unit, you must inspect it for possible For authorized replacement parts, call Johnson Controls, damage during transit. If damage is evident, note the extent of Inc.National Source1 Parts Outlet at 1-866-523-9670.
- Page 4 5566217-JIM-C-1019 Nomenclature ® 6.5-12.5 Ton ZH Johnson Controls Model Number Nomenclature J10 ZH C A 2 A 1 Product Generation Nominal Cooling Capacity 2 = Second Generation J06 = 6.5 Ton J07 = 7.5 Ton Cabinet Options J08 = 8.5 Ton J10 = 10.0 Ton...
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Page 5: Installation
Turn each bracket toward the ground. The protective for 230v and 415v power supply respectively. Change plywood covering drops to the ground. the tap on the transformer for 208-3-60 or 380-3-50 Remove the condenser coil protective covering. operation. See the unit wiring diagram. Johnson Controls Ducted Systems... -
Page 6: Limitations
874-SERV for guidance. Additional accessories may be After the installation is complete, you must adjust gas fired units needed for stable operation at temperatures below 30°F. to obtain a temperature rise within the range specified on the unit rating plate. Johnson Controls Ducted Systems... -
Page 7: Unit Components
20-gauge aluminized steel tubular heat exchanger for long life Second model nameplate inside hinged access panel (stainless steel option) 1. Roof curbs for transitioning from Johnson Controls J**ZE Series footprint to the J**ZH Series footprints are also available (field-installed accessory). Johnson Controls Ducted Systems... -
Page 8: Location
The spreader bars must have a length that exceeds • Suitable for mounting on roof curb. the largest dimension across the unit. • For ground level installation, use a level concrete slab with a minimum thickness of 4 inches. The length and Johnson Controls Ducted Systems... -
Page 9: Weights And Dimensions
4 point load location (lbs.) 6 point load location (lbs.) Size Model (tons) Shipping Operating 47.25 24.00 (6.5) 48.25 25.34 (7.5) 1037 1032 47.25 24.75 (8.5) 1095 1090 45.00 25.50 (10) 1285 1280 49.75 24.50 (12.5) Johnson Controls Ducted Systems... -
Page 10: J06 Through 12Zh Unit Accessory Weights
3. Weight includes mounting hardware, controls, and the manual bypass option. 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: J06 through 10ZH physical dimensions Johnson Controls Ducted Systems... -
Page 11: J06 Through 12Zh Unit Physical Dimensions
6 3/16 J08ZH 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 J10ZH 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 J12ZH 50 3/4 119 1/2 30 3/16 24 3/16 17 3/16 6 3/16 Johnson Controls Ducted Systems... -
Page 12: Gas Inlet And Drain Components
1. Units must be installed outdoors. Make sure that overhanging structures or shrubs do not obscure the 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 13: J06 Through 12Zh Unit Bottom Duct Openings
Bottom gas supply entry 16 3/8 18 1/16 FRONT Top view 3X Ø 0.875 Ø 2.469 Figure 10: J06 through 12ZH unit bottom duct openings Figure 10 shows the bottom power, control, and convenience outlet wiring entry. Johnson Controls Ducted Systems... -
Page 14: J06 Through 12Zh 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: J06 through 10ZH unit side duct openings Johnson Controls Ducted Systems... -
Page 15: Side Duct Dimensions
Figure 14: J06 through 12ZH unit left/end duct opening Table 8: Left/end duct dimensions Dimension (in.) Unit model number J06ZH 30.357 13.365 22.516 J07ZH 30.357 13.365 22.516 J08ZH 30.358 22.580 22.330 J10ZH 30.358 22.580 22.330 J12ZH 30.358 22.580 22.330 Johnson Controls Ducted Systems... -
Page 16: Roof Curb Components
Figure 16: J06 through 12ZH transition roof curb Roof curb components Item Description Return air Supply air Right side of the unit Front side of the unit 2 typ. Insulated deck under the condenser section Insulated deck under the compressor section Johnson Controls Ducted Systems... -
Page 17: Ductwork
NOT insert the screws through the casing. You must economizer or motorized damper may be installed. You must insulate and water-proof outdoor ductwork. keep these panels to use them as tops for the economizer rain hoods (see Figure 20). Johnson Controls Ducted Systems... -
Page 18: Condensate Drain
R-410A Refrigerant and cannot be Always install filters ahead of evaporator coil. Keep the filters interchanged. clean and replace them with filters of the same size and type. Dirty filters reduce the capacity of the unit and result in frosted Johnson Controls Ducted Systems... -
Page 19: Power And Control Wiring
Power wiring is brought into the unit through the side of the unit or the basepan inside the curb. Johnson Controls Ducted Systems... -
Page 20: Field Wiring Disconnect - Cooling Unit With Or Without Electric Heat And All Units With A Vfd Option
Figure 22: Field wiring disconnect - cooling unit with or without electric heat and all units with a VFD option CONTACTOR 1M FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 23: Field wiring disconnect - cooling unit with gas heat without a VFD option Johnson Controls Ducted Systems... -
Page 21: 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 the tap on the transformer for 208-3-60 or 380-3-50 operation. See the unit wiring diagram. Johnson Controls Ducted Systems... -
Page 22: 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 23 28.9 44.8 40.9 59.8 70.9 73.6 None 25.8 27.6 17.3 26.1 28.4 0.66 23.1 33.4 35.6 32.7 45.4 47.6 56.5 58.8 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 24 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 25 44.4 47.1 40.9 59.4 62.1 73.3 None 27.4 29.2 17.3 28.1 30.4 0.66 23.1 35.4 37.6 32.7 47.4 49.6 58.5 60.8 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 26 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 27 28.9 48.3 40.9 63.3 77.1 79.9 None 29.8 31.6 17.3 31.1 33.4 0.66 23.1 38.4 40.6 32.7 50.4 52.6 61.5 63.8 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 28 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 29 53.4 40.9 65.6 68.4 79.5 82.3 None 31.4 33.2 17.3 33.1 35.4 0.66 23.1 40.4 42.6 32.7 52.4 54.6 63.5 65.8 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
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Page 30: J06 Through 12Zh Physical Data
2-pass Microchannel 2-pass Microchannel 2-pass Microchannel 2-pass Microchannel 2-pass Microchannel Evaporator coil data Face area (sq. ft) 10.6 10.6 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 31 4. First stage 60% of full capacity 5. All J**ZH units have crankcase heaters standard 6. 2 in. throwaway, standard, MERV (Minimum Efficiency Reporting Value) 3 7. 2 in. pleated, optional, MERV 8 8. 4 in. pleated, optional, MERV 13 Johnson Controls Ducted Systems...
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Page 32: Optional Electric Heat
See Table 13, Gas pipe sizing - capacity of pipe, on page 33. The heating value of the gas may vary by locality. You must Figure 25: Side entry gas piping check the value with the local gas utility. Johnson Controls Ducted Systems... -
Page 33: Gas Pipe Sizing - Capacity Of Pipe
• Use wrought iron or steel pipe for all gas lines. Apply pipe are purged of air. dope sparingly to male threads only. • The gas supply must be a separate line and installed in accordance with all safety codes as prescribed under Limitations. Johnson Controls Ducted Systems... -
Page 34: Options And 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 containers. Johnson Controls Ducted Systems... -
Page 35: Optional Variable Air Volume
The motorized outdoor damper can be a factory-installed option transducer to a static pressure tap (field supplied) in the supply or a field-installed accessory. If factory installed, refer to the duct located at a point where constant pressure is expected. To Johnson Controls Ducted Systems... - Page 36 (bypass) position. If there is a call for the fan, the indoor blower vary greatly among manufacturers, horsepower ratings, and motor will run at full-speed while in the bypass mode. voltage requirements. Keep in mind that drive manufacturers Johnson Controls Ducted Systems...
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Page 37: Optional Hot Gas Bypass (Hgbp)
VFD speed reference signal (2-10 VDC) and must drop to no greater than RAT plus 9°F to enter free cooling to the normally-open, run-permit auxiliary contact. The use of again. shielded cable is recommended for the above control wiring Johnson Controls Ducted Systems... -
Page 38: Dual Enthalpy Changeover
If at any time the economizer output drops below 100% the c. De-energizes the exhaust fan when the economizer timer stops and resets when the economizer output returns to output is below the economizer damper position for 100%. exhaust fan off Johnson Controls Ducted Systems... -
Page 39: Smart Equipment™ Economizer Board
24 VAC hot supplied for the supply air humidity 24V~ Connects through circuit trace to 24V~ IN pin HOT sensor 0-10 VDC positive input from the Supply Air SAH parameter reports input status (0-100%H). Unused in Humidity sensor current control revision. Johnson Controls Ducted Systems... - Page 40 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 41 ECON 2-10 VDC output for the Economizer actuator demand ventilation, cooling economizer loading and purge functions 24 VAC common/0-10 VDC negative for Connects through circuit trace to 24V~ IN pin COM economizer actuator Johnson Controls Ducted Systems...
- Page 42 - part no. 2AQ04700524 there is no call for free cooling, the actuator is proportionately • Optional CO sensor kit - part no. 2AQ04700624 modulated from the 0 to 10 VDC signal, with 0 VDC Johnson Controls Ducted Systems...
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Page 43: Supply Air Limitations
Tension new belts at the max. deflection force less power is required than a similar application at sea level. Air recommended for the belt section. density correction factors are shown in Table 16 and Figure 30. Re-tighten the belt nuts. Johnson Controls Ducted Systems... -
Page 44: Altitude/Temperature Correction Factors
This value must be corrected for elevation. Example 2: A system, located at 5,000 feet of elevation, is to BHP at 5,000 ft. = 3.2 x .832 = 2.66 deliver 6,000 CFM at a static pressure of 1.5 in. Use the unit Johnson Controls Ducted Systems... - Page 45 4 turns 3 turns 2 turns 1 turn Fully Model Max BHP (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 46: Airflow Performance
1. Blower performance includes gas heat exchangers and 2 in. filters. See the static resistance table for additional applications. 2. See the RPM selection table to determine the required motor sheave setting and to determine the maximum continuous BHP. 3. kW = BHP x 0.932. Johnson Controls Ducted Systems... - Page 47 1. Blower performance includes gas heat exchangers and 2 in. filters. See the static resistance table for additional applications. 2. See the RPM selection table to determine the required 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 48: Airflow Performance - Bottom Duct Application
1. Blower performance includes gas heat exchangers and 2 in. filters. See the static resistance table for additional applications. 2. See the RPM selection table to determine the required 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 49: Rpm Selection
2.30 1VM50 AK94 (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 50: Air Balance
After you note the readings, remove the tubes and replace adjustments. Re-check the set screws after 10-12 hours the dot plugs. of run time. Tighten the blower pulley and motor sheave set screws after any adjustments. Re-check the set screws after 10-12 hours run time. Johnson Controls Ducted Systems... -
Page 51: Dry Coil Delta P
Determine the number of turns the variable motor sheave is open. J06ZH 0.45 J08ZH J07ZH J10ZH J12ZH 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 52: Motor Sheave Datum Diameters
CFM. You must adjust the blower speed and belt tension. Verify proper sheave alignment. Tighten the blower pulley and motor sheave set screws after these adjustments. Re-check the set screws after 10-12 hours of run time. Johnson Controls Ducted Systems... -
Page 53: Operation
Unit Control Board (UCB) which then determines whether is available and if so, which components to energize. With a Y2 the requested operation is available and if so, which call for first stage cooling the UCB determines if a second stage Johnson Controls Ducted Systems... - Page 54 (previously determined), Y1 energizes the economizer. The dampers modulate to maintain a constant VAV Cooling Supply Air Temp Lower setpoint supply air temperature as monitored by the discharge air (default 55° F) Johnson Controls Ducted Systems...
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Page 55: Cooling Operation Errors
To determine when to operate in low ambient mode, the UCB has an Outdoor Air Temperature Sensor (OAT) with a low Mobile Access Portal (MAP) Gateway (Portable). ambient setpoint at 45ºF (default). When the OAT Sensor Johnson Controls Ducted Systems... -
Page 56: Electric Heating Sequence Of Operations
The ASCD is initiated on unit start-up and on any compressor Unit (tons) Voltage opens °F reset or lock-out. J08, J10, J12ZH Electric heating sequence of operations 208/230 (8.5, 10, 12.5) The following sequence describes the operation of the electric heat section. Johnson Controls Ducted Systems... -
Page 57: Gas Heating Sequence Of Operations
When the ICB receives a call for the second stage of heating, W2, the ICB conducts a complete first stage ignition sequence. If this sequence is satisfied, the second main valve of the GV is opened. When W2 is satisfied, the second main valve is closed. Johnson Controls Ducted Systems... -
Page 58: Gas Heating Operation Errors
Limit switch on page 58. Normal operation is now allowed. The ICB monitors the pressure and roll out switches of gas heat units. Johnson Controls Ducted Systems... -
Page 59: Cooling Start-Up
Check the type of gas supply. Verify that it is the same as the conditioned space. Reducing the value below the correct the gas supply listed on the unit nameplate. setpoint gives shorter ON cycles and may result in the lowering Johnson Controls Ducted Systems... -
Page 60: Checking Gas Heat Input
4.5 in. for natural gas units. If the If necessary, adjust the low pressure regulator, see gas pressure is outside these limits, contact the local Adjusting the manifold gas pressure on page 61. gas utility or propane supplier for corrective action. Johnson Controls Ducted Systems... -
Page 61: Gas Rate Cubic Feet Per Hour
BTU/h rating of the furnace. the heated air in the ducts (about 6 feet from the furnace) where they are not affected by radiant heat. After you determine the temperature rise, calculate the CFM according to the following formula. Johnson Controls Ducted Systems... -
Page 62: Charging The Unit
Smart Equipment™ Quick Start Guide. Figure 32: Typical flame NOTE: For more in-depth sequence of operation of the Smart Equipment™ control, refer to the Smart Equipment™ Controls Sequence of Operation Overview LIT- 12011950. Johnson Controls Ducted Systems... -
Page 63: Smart Equipment™ Unit Control Board
24 VAC hot out for smoke detector, condensate overflow and/ accessories for unit shutdown are wired between thermostat or user shutdown relay switching in series connection strip SD-24 and R 24 VAC common for thermostat power Johnson Controls Ducted Systems... - Page 64 #1 refrigerant circuit Evaporator Coil temperature Input required for operation; 3.625 VDC reading EC1+ to EC1– with open EC1+ sensor input from 10KΩ @ 77°F, Type III negative circuit. Used in suction line temperature safety. temperature coefficient thermistor Johnson Controls Ducted Systems...
- Page 65 Output relay circuitry is isolated from other UCB components 24 VAC hot for H1, H2, CN-FAN, AUX HGR, 24V FOR OUTPUTS and the 24 VAC hot source may be from a second FAN C1 and C2 output relay contact switching transformer in the unit Johnson Controls Ducted Systems...
- Page 66 Three HPS2 trips in a two hour period cause a “High Pressure (left pin) Pressure Switch Switch 1 Lockout” and C2 output is then prevented until alarm reset. Connects through circuit trace to the right LPS2 pin. Johnson Controls Ducted Systems...
- Page 67 On-board, 2-line x 8-character back-lit display economizer, 4-stage and FDD board parameters ENTER Button for display menu acknowledgment and navigation Button for display menu navigation and zeroing of active CANCEL compressor ASCD timer 4-way Joystick for display menu navigation Johnson Controls Ducted Systems...
- Page 68 Green FC bus communication transmission FC BUS currently active, off indicates the UCB is awaiting incoming FC bus indicator communication Green communication board Isolated Power Lit indicates the UCB is supplying power to the communication sub- ISO PWR indicator board Johnson Controls Ducted Systems...
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Page 69: Cable For Fc Buses And Sa Buses In Order Of Preference
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 70: Start-Up Sheet
5566217-JIM-C-1019 Start-up sheet Johnson Controls Ducted Systems... - Page 71 5566217-JIM-C-1019 Johnson Controls Ducted Systems...
- Page 72 5566217-JIM-C-1019 Johnson Controls Ducted Systems...
- Page 73 5566217-JIM-C-1019 Johnson Controls Ducted Systems...
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Page 75: 5566217-Jim-C-1019
Subject to change without notice. Printed in U.S.A. 5566217-JIM-C-1019 Copyright © 2019 by Johnson Controls, Inc. All rights reserved. Supersedes: 5566217-JIM-B-1118 York International Corporation 5005 York Drive Norman, OK 73069...
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