Table of Contents
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R-410A
ZN SERIES W/SMART EQUIPMENT™
6.5 - 12.5 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rigging and handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Side panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power and control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Optional electric heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Optional gas heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Options and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Economizer sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Smart Equipment™ economizer board . . . . . . . . . . . . . . . . . . 43
Airflow performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
1 Component location table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 ZN-06 through -12 unit limitations . . . . . . . . . . . . . . . . . . . . . . 8
3 ZN-06 through -12 standard unit weights . . . . . . . . . . . . . . . 11
4 ZN-06 through -12 unit accessory weights . . . . . . . . . . . . . . 11
5 ZN-06 through -12 unit physical dimensions . . . . . . . . . . . . . 13
6 ZN-06 through -12 unit clearances . . . . . . . . . . . . . . . . . . . . 14
7 ZN-06 through -10 side duct dimensions . . . . . . . . . . . . . . . 16
8 ZN-12 side duct dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Left/end duct dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
10 Control wire sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12 Physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
13 Electric heat minimum supply air . . . . . . . . . . . . . . . . . . . . . . 35
14 Gas pipe sizing - capacity of pipe . . . . . . . . . . . . . . . . . . . . . 36
15 Gas heat minimum supply air . . . . . . . . . . . . . . . . . . . . . . . . 36
16 Supply air limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
17 Altitude/temperature correction factors . . . . . . . . . . . . . . . . . 49
18 Airflow performance - side duct application . . . . . . . . . . . . . . 51
19 Airflow performance - bottom duct application . . . . . . . . . . . 54
20 RPM selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
21 Indoor blower specifications . . . . . . . . . . . . . . . . . . . . . . . . . 56
1 Unit shipping bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Barometric relief hood - shipping location . . . . . . . . . . . . . . . 5
3 Compressor section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Component location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 4 point and 6 point load weight for ZN-12 units . . . . . . . . . . 10
7 Center of gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 ZN-06 through -10 physical dimensions . . . . . . . . . . . . . . . . 12
9 ZN-12 physical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 ZN-06 through -12 unit bottom duct openings . . . . . . . . . . . 15
11 ZN-06 through -12 unit electrical entry . . . . . . . . . . . . . . . . . 16
12 ZN-06 through -12 unit left/end duct opening . . . . . . . . . . . . 17
13 ZN-06 through -12 roof curb . . . . . . . . . . . . . . . . . . . . . . . . . 18
14 ZN-06 through -12 transition roof curb . . . . . . . . . . . . . . . . . 18
15 Side panels with hole plugs . . . . . . . . . . . . . . . . . . . . . . . . . 19
16 Return down flow plenum with panel . . . . . . . . . . . . . . . . . . 19
Table of contents
Air balance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Checking air quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Cooling operation 2 fan cooling operation . . . . . . . . . . . . . . . . . . 60
Cooling operation 4 fan cooling operation . . . . . . . . . . . . . . . . . . 60
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Electric heating sequence of operations . . . . . . . . . . . . . . . . . 62
Electric heat operation errors . . . . . . . . . . . . . . . . . . . . . . . . 62
Gas heating sequence of operations. . . . . . . . . . . . . . . . . . . . 63
Ignition control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Gas heating operation errors . . . . . . . . . . . . . . . . . . . . . . . . 63
Cooling start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Gas heat start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Checking gas heat input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
67
Smart Equipment™ unit control board . . . . . . . . . . . . . . . . . . . . . 68
Charging the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Start-up sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
List of tables
22 Power exhaust specifications . . . . . . . . . . . . . . . . . . . . . . . . 56
23 Motor sheave datum diameters . . . . . . . . . . . . . . . . . . . . . . 58
24 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
25 Electric heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . 63
26 Gas heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . . . 64
27 Gas rate cubic feet per hour . . . . . . . . . . . . . . . . . . . . . . . . . 66
28 Gas heat stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
29 Gas heat limit control settings . . . . . . . . . . . . . . . . . . . . . . . . 67
31 Ignition control flash codes . . . . . . . . . . . . . . . . . . . . . . . . . . 74
32 ZN-06 charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 75
33 ZN-06 charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 75
34 ZN-07 charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 76
35 ZN-07 charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 76
36 ZN-08 charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 77
37 ZN-08 charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 77
38 ZN-10 charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 78
39 ZN-10 charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 78
40 ZN-12 charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 79
41 ZN-12 charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 79
List of figures
17 Discharge panel in place . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
18 Side panels for economizer hood tops . . . . . . . . . . . . . . . . . 20
19 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
20 Field wiring disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
21 Typical control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
22 Side entry gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
23 Bottom entry gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
24 Simplified VFD wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
25 SE-ECO1001-0 economizer controller . . . . . . . . . . . . . . . . . 43
26 Belt adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
27 Altitude/temperature correction factors . . . . . . . . . . . . . . . . 49
28 Dry coil delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
29 Typical flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
30 Typical two stage gas valve . . . . . . . . . . . . . . . . . . . . . . . . . 67
31 Unit control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
5808010-BIM-A-0320
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Table of Contents
Related Manuals for Johnson Controls York ZN-06
Summary of Contents for Johnson Controls York ZN-06
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Page 1: Table Of Contents
R-410A ZN SERIES W/SMART EQUIPMENT™ 6.5 - 12.5 Ton 60 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. Wear safety glasses and work gloves. Use quenching cloth and have a fire extinguisher available during brazing operations. Johnson Controls Ducted Systems... - Page 3 • Manual Outdoor Air Damper (0-35%) • Gas Heat Propane Conversion Kit • Gas Heat High Altitude Kit (Natural Gas) • Gas Heat High Altitude Kit (Propane) • –60F Gas Heat Kit • Electric Heater Accessory Johnson Controls Ducted Systems...
- Page 4 D = Economizer w/Power EXH 1 = No Service Options H = Motorized Damper 2 = DSC (Disconnect Switch) 3 = NCO (Non-PWR Conv. Outlet) 4 = PCO (Powered Conv. Outlet) 5 = DSC,NCO 6 = DSC,PCO Johnson Controls Ducted Systems...
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Page 5: Installation
(if included) Note: If the unit is used during the construction phase, the Figure 2: Barometric relief hood - shipping location standard limited warranty provisions go into effect when the unit is placed into operation. Johnson Controls Ducted Systems... -
Page 6: Limitations
874-SERV for guidance. Additional accessories may be These units must be installed in accordance with the following: needed for stable operation at temperatures below 30°F. In the U.S.A.: National Electrical Code, ANSI/NFPA No. 70 - Latest Edition Johnson Controls Ducted Systems... -
Page 7: Component Location Table
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 the old 3-5 ton footprint to the ZN Series footprints are also available (field-installed accessory). Johnson Controls Ducted Systems... -
Page 8: Location
7.3, or 7.4 of Gas Installation Codes, CSA-B149.1 (in Canada) - Latest Edition, and/or applicable provisions of the local building codes. Refer to Table 6 for the clearances required for combustible construction, servicing, and proper unit operation. Johnson Controls Ducted Systems... -
Page 9: Rigging And Handling
If a unit is installed on a roof curb other than a Ducted cable damage with plywood or another suitable material. Systems roof curb, you must apply gasketing to all surfaces that come in contact with the unit underside. Johnson Controls Ducted Systems... -
Page 10: 4 Point And 6 Point Load Weight For Zn-12 Units
Figure 5: 4 point and 6 point load weight for ZN-12 units FRONT FRONT LEFT LEFT Figure 6: 4 point and 6 point load weight for ZN-06 through -10 units FRONT LEFT Figure 7: Center of gravity Johnson Controls Ducted Systems... -
Page 11: Through -12 Standard Unit Weights
Operating Economizer Power exhaust Electric heat Gas heat 1. The weight given is for the maximum heater size available (54KW). 2. The weight given is for the maximum number of tube heat exchangers available (8 tubes). Johnson Controls Ducted Systems... -
Page 12: Through -10 Physical Dimensions
5808010-BIM-A-0320 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: ZN-06 through -10 physical dimensions Johnson Controls Ducted Systems... -
Page 13: Through -12 Unit Physical Dimensions
Table 5: ZN-06 through -12 unit physical dimensions Dimension (in.) Unit model number ZN-06, -07, -08, -10, -12 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 ZN-12 50 3/4 119 1/2 30 3/16 24 3/16 17 3/16 6 3/16 Johnson Controls Ducted Systems... -
Page 14: Through -12 Unit Clearances
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 15: Through -12 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: ZN-06 through -12 unit bottom duct openings Johnson Controls Ducted Systems... -
Page 16: Through -10 Side Duct Dimensions
5 - 5 /3 2 3 1 - 1 1 /1 6 Table 7: ZN-06 through -10 side duct dimensions Dimension (in.) Unit model number ZN-06, -07, -08, -10, -12 28 1/4 18 1/16 28 1/4 18 1/4 Johnson Controls Ducted Systems... -
Page 17: Side Duct Dimensions
28 1/4 18 1/4 4-5/16 Figure 12: ZN-06 through -12 unit left/end duct opening Table 9: Left/end duct dimensions Dimension (in.) Unit model number ZN-06, -07, -08, -10, -12 30.358 22.580 22.330 ZN-12 30.358 22.580 22.330 Johnson Controls Ducted Systems... -
Page 18: Through -12 Roof Curb
INSULATED DECK UNDER COMPRESSOR SECTION FRONT 8 or 14 Figure 13: ZN-06 through -12 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 14: ZN-06 through -12 transition roof curb Johnson Controls Ducted Systems... -
Page 19: 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 18). Johnson Controls Ducted Systems... -
Page 20: Condensate Drain
• Replacing refrigerant components such as the filter drier, pressure switch, metering device or coil Units are shipped with compressor mountings that are factory- adjusted and ready for operation. Figure 19: Condensate drain Do not loosen the compressor mounting bolts. Johnson Controls Ducted Systems... -
Page 21: Filters
208-3-60 operation. See the unit wiring the unit, you must use water-proof connectors so that diagram. water or moisture cannot be drawn into the unit during normal operation. These water-proofing conditions also apply when you install a field-supplied disconnect switch. Johnson Controls Ducted Systems... -
Page 22: Field Wiring Disconnect
See Table 11, Electrical data, on page 24 to size or the basepan inside the curb. power wiring, fuses, and the disconnect switch. TERMINAL BLOCK TB1 FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 20: Field wiring disconnect Johnson Controls Ducted Systems... -
Page 23: Control Wire Sizes
Jumper is required for any combination of R, RC, or RH. OCC is an output from the thermostat to indicate the Occupied X is an input to the thermostat to display Error Status conditions. Figure 21: Typical control wiring Johnson Controls Ducted Systems... -
Page 24: Electrical Data
81.8 120.9 127.8 (7.5) None 24.7 26.9 10.8 24.7 26.9 460-3-60 21.7 36.4 39.1 28.9 45.4 48.1 40.9 60.4 63.1 None 18.8 20.6 18.8 20.8 575-3-60 1.35 17.3 29.3 31.5 23.1 36.5 38.8 32.7 48.5 50.8 Johnson Controls Ducted Systems... - Page 25 129.9 150.9 157.8 (10) None 31.4 33.6 21.7 37.6 40.4 460-3-60 28.9 46.6 49.4 40.9 61.6 64.4 75.5 78.3 None 20.4 22.2 17.3 29.4 31.6 575-3-60 5.1 43.8 1.35 23.1 36.6 38.9 32.7 48.6 50.9 59.8 Johnson Controls Ducted Systems...
- Page 26 28.9 48.3 40.9 63.3 77.1 79.9 None 26.5 28.3 17.3 30.6 32.9 575-3-60 0.66 23.1 37.9 40.1 32.7 49.9 52.1 63.3 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 27 80.6 87.5 81.8 110.8 117.6 (8.5) None 26.2 10.8 26.2 460-3-60 21.7 31.4 34.1 28.9 40.4 43.1 40.9 55.4 58.1 None 15.6 17.4 15.6 17.4 575-3-60 1.35 17.3 24.4 26.6 23.1 31.6 33.9 32.7 43.6 45.9 Johnson Controls Ducted Systems...
- Page 28 28.9 44.8 40.9 59.8 70.9 73.6 None 22.5 24.3 17.3 25.6 27.9 575-3-60 0.66 23.1 32.9 35.1 32.7 44.9 47.1 58.3 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 29 66.1 57.7 84.1 81.8 114.3 121.1 (8.5) None 25.3 27.5 10.8 25.3 27.5 460-3-60 21.7 35.8 28.9 44.8 40.9 59.8 None 16.6 18.4 16.6 18.4 575-3-60 1.35 17.3 25.6 27.9 23.1 32.9 35.1 32.7 44.9 47.1 Johnson Controls Ducted Systems...
- Page 30 47.1 40.9 59.4 62.1 73.3 None 24.5 26.3 17.3 28.1 30.4 575-3-60 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 31 57.7 96.6 103.5 81.8 126.8 133.6 (8.5) None 30.3 32.5 10.8 30.3 32.5 460-3-60 21.7 39.3 28.9 48.3 40.9 63.3 None 20.6 22.4 20.6 22.4 575-3-60 1.35 17.3 30.6 32.9 23.1 37.9 40.1 32.7 49.9 52.1 Johnson Controls Ducted Systems...
- Page 32 Electric heat multipliers Voltage kW capacity multipliers Nominal Applied 0.75 0.92 0.92 0.92 1. Electric heaters are rated at nominal voltage. Use this table to determine the electric heat capacity for heaters applied at lower voltages. Johnson Controls Ducted Systems...
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Page 33: 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 34 Stage 60% of Full Capacity. 4. ZN-06 through ZN-12 have crankcase heaters standard. 5. 2 In. Throwaway, Standard, MERV (Minimum Efficiency Reporting Value). 6. 2 In. Pleated, Optional, MERV 8. 7. 4 In. Pleated, Optional, MERV 13. Johnson Controls Ducted Systems...
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Page 35: Optional Electric Heat
See Table 14, Gas pipe sizing - capacity of pipe, on page 36. The heating value of the gas may vary by locality. You must check the value with the local gas utility. Figure 22: Side entry gas piping Johnson Controls Ducted Systems... -
Page 36: 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 37: Options And Accessories
W.C. at the unit under full load. Maintaining proper gas 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 38 The motorized outdoor damper can be a factory-installed option or a field-installed accessory. If factory installed, refer to the Refer to the enclosed drive material for instructions on instructions included with the outdoor air hood to complete the changing parameter settings. Johnson Controls Ducted Systems...
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Page 39: Economizer Sequences
When a drive is selected and installed, refer to the drive manufacturer's recommendations for proper fuse sizing. Johnson Controls Ducted Systems... - Page 40 = single enthalpy minimum position. The economizer then modulates to control • If either the operational space temperature or the outdoor the supply air temperature at 50°F. air dry bulb value is unreliable, free cooling is not available. Johnson Controls Ducted Systems...
- Page 41 See for additional information. opens to 100% and the first compressor output energizes. As soon as the staged percent command begins to increase, the economizer remains at 100%. If the SAT drops to less than Johnson Controls Ducted Systems...
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Page 42: Power Exhaust
When the cooling demand ends the compressors de-energize immediately and the dampers return to operating minimum c. De-energizes the exhaust fan when the economizer position. output is below the economizer damper position for exhaust fan off Johnson Controls Ducted Systems... -
Page 43: Smart Equipment™ Economizer Board
Mixed air temperature sensor input from 10KΩ The MAT parameter reports input status (°F/°C), 3.65 VDC @ 77°F, Type III negative temperature reading MAT (+) to COM (−) with open circuit. Read-only use in coefficient thermistor current control revision. Johnson Controls Ducted Systems... - Page 44 .062kPa). Used for modulating power exhaust functions when PRES Pressure sensor ExFType selection is Modulating Damper or Variable Frequency Fan. 24 VAC common/0-5 VDC negative for the Connects through circuit trace to 24V~ IN pin COM building pressure sensor Johnson Controls Ducted Systems...
- Page 45 –) SA BUS communication circuit to the UCB. Through the unit wiring harness, may continue on to the 4-stage board and/or fault detection & diagnostics board 1. When wiring the unit and other devices using the SA Bus and FC Bus, see Table 30. Johnson Controls Ducted Systems...
- Page 46 Connects through circuit traces to C/COM terminals and pins cabinet ground distributed on the economizer board. 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. Johnson Controls Ducted Systems...
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Page 47: Supply Air Limitations
Re-tighten the belt nuts. Scroll compressors require proper rotation to operate correctly. Units are properly phased at the factory. Do not change the internal wiring to make the blower condenser fans or compressor rotate correctly. Johnson Controls Ducted Systems... -
Page 48: Belt Adjustment
Item Component less power is required than a similar application at sea level. Air Belt nuts density correction factors are shown in Table 17 and Figure 27. Adjustment bolt Static nut Johnson Controls Ducted Systems... -
Page 49: 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 1,400 CFM at a static pressure of 1.5 in. Use the unit BHP at 5,000 ft. = 0.7 x .832 = 0.58 Johnson Controls Ducted Systems... - Page 50 4 turns 3 turns 2 turns 1 turn Fully Model Max BHP (tons) sheave sheave open open open open open open closed 1.73 1VL40 AK61 1029 1089 2.30 1VP56 AK74 1035 1084 1134 1183 1232 1281 Johnson Controls Ducted Systems...
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Page 51: 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. 4. Field Supplied Drive. Johnson Controls Ducted Systems... - Page 52 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 53 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 54: 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 55: Rpm Selection
AK74 1035 1084 1134 Std. 2.30 1VM50 AK84 (10) H. Static 3.45 1VM50 AK74 1035 1084 1134 Std. 3.45 1VM50 AK74 1035 1084 1134 (12.5) H. Static 5.75 1VP56 BK77 1052 1095 1136 1175 1216 1272 Johnson Controls Ducted Systems... -
Page 56: Indoor Blower Specifications
Note: You must insert the tubes and hold them in a position moisture on an evaporator coil can vary greatly, measuring perpendicular to the air flow so that velocity pressure the pressure drop across a wet coil under field conditions does not affect the static pressure readings. Johnson Controls Ducted Systems... -
Page 57: Dry Coil Delta P
To adjust measured CFM to required CFM, see Supply air drive adjustment on page 58. ZN-06 ZN-07 0.45 ZN-08 ZN-10 ZN-12 0.35 0.25 0.15 0.05 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 Airflow (CFM) Figure 28: Dry coil delta P Johnson Controls Ducted Systems... -
Page 58: 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 59 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 is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation. Johnson Controls Ducted Systems...
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Page 60: Operation
If the outdoor air enthalpy is above the setpoint, Y1 energizes relay. This starts compressor #2 and also energizes cond. the compressor and condenser fan motor only. fan #3 and cond. fan #4 on. The UCB energizes the VFD- Johnson Controls Ducted Systems... -
Page 61: Cooling Operation Errors
If the call for cooling is still present at the end of cooling is still present at the conclusion of the ASCD, the UCB the ASCD and the evaporator temperature sensor (EC1) re-energizes the halted compressor. temperature is above 26°F, the unit resumes operation. Johnson Controls Ducted Systems... -
Page 62: Electric Heating Sequence Of Operations
See Table 25 for the required electric heat anticipator setting. This limit is monitored regardless of unit operation status, that is, the limit is monitored at all times. Johnson Controls Ducted Systems... -
Page 63: Gas Heating Sequence Of Operations
If the unit fails after three ignition attempts, the furnace is locked indoor blower. When voltage is no longer sensed at the GV, the out for one hour. The furnace is monitored during this one-hour period for unsafe conditions. Johnson Controls Ducted Systems... -
Page 64: Cooling Start-Up
Internal microprocessor failure Set the room thermostat setting lower than the room If the ICB detects an internal failure, it ceases all outputs, temperature. ignores inputs, and displays the proper flash code for control Johnson Controls Ducted Systems... -
Page 65: Gas Heat Start-Up
A fire Wait for the initial second stage period to complete and or explosion may result causing property damage, verify that the unit is in first stage. personal injury, or loss of life. Johnson Controls Ducted Systems... -
Page 66: Gas Rate Cubic Feet Per Hour
240,000 144,000 area, contact your gas company for this information. By actual measurement, it takes 46 seconds for the hand on a 1 cubic foot dial to make a revolution with a 80,000 BTU/h furnace running. Johnson Controls Ducted Systems... -
Page 67: Navigation Components For The Smart Equipment™ Control Board
Equipment™ control, refer to the Smart Equipment™ orifices and replace them if required. Controls Sequence of Operation Overview LIT- To service the burners, remove the heat shield on top of 12011950. the manifold supports. Inspect the burners and replace them if required. Johnson Controls Ducted Systems... -
Page 68: 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 69 #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 70 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 71 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 72 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 73 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 74: 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 Ignition Lockout Gas Flow Gas Pressure Gas Valve Flame Sensor No Power Or Control Steady off 24VAC or Control Failure Johnson Controls Ducted Systems... -
Page 75: Charging The Unit
Outdoor DB Suction temp. Liquid temp. Delta T Db Indoor Db/Wb pressure pressure 300 Cfm/Ton 80/62 300 Cfm/Ton 79.98/67 300 Cfm/Ton 80/72 300 Cfm/Ton 75/62 400 Cfm/Ton 80/62 400 Cfm/Ton 80.21/67.025 400 Cfm/Ton 80/72 400 Cfm/Ton 75/62 Johnson Controls Ducted Systems... -
Page 76: Charging Table - System 2
Outdoor DB Suction temp. Liquid temp. Delta T Db Indoor Db/Wb pressure pressure 300 Cfm/Ton 80/62 300 Cfm/Ton 79.89/67.03 300 Cfm/Ton 80/72 300 Cfm/Ton 75/62 400 Cfm/Ton 80/62 400 Cfm/Ton 79.88/67.035 400 Cfm/Ton 80/72 400 Cfm/Ton 75/62 Johnson Controls Ducted Systems... -
Page 77: Charging Table - System 1
Outdoor DB Suction temp. Liquid temp. Delta T Db Indoor Db/Wb pressure pressure 300 Cfm/Ton 80/62 300 Cfm/Ton 79.82/66.95 300 Cfm/Ton 80/72 300 Cfm/Ton 75/62 400 Cfm/Ton 80/62 400 Cfm/Ton 80.005/66.92 400 Cfm/Ton 80/72 400 Cfm/Ton 75/62 Johnson Controls Ducted Systems... -
Page 78: Charging Table - System 1
11.5 300 Cfm/Ton 10.5 79.97/67.09 11.7 300 Cfm/Ton 10.6 80/72 11.9 300 Cfm/Ton 10.4 75/62 11.5 400 Cfm/Ton 10.5 80/62 11.6 400 Cfm/Ton 10.5 80/67.005 11.7 400 Cfm/Ton 10.5 80/72 11.7 400 Cfm/Ton 10.4 75/62 11.6 Johnson Controls Ducted Systems... -
Page 79: Charging Table - System 1
12.7 300 Cfm/Ton 14.3 80/72 15.8 12.6 300 Cfm/Ton 14.0 75/62 15.5 12.7 400 Cfm/Ton 14.2 80/62 15.6 12.8 400 Cfm/Ton 14.2 80.08/67.06 15.7 12.8 400 Cfm/Ton 14.2 80/72 15.7 12.6 400 Cfm/Ton 14.1 75/62 15.6 Johnson Controls Ducted Systems... -
Page 80: Start-Up Sheet
5808010-BIM-A-0320 Start-up sheet Johnson Controls Ducted Systems... - Page 81 5808010-BIM-A-0320 Johnson Controls Ducted Systems...
- Page 82 5808010-BIM-A-0320 Johnson Controls Ducted Systems...
- Page 83 5808010-BIM-A-0320 Johnson Controls Ducted Systems...
- Page 84 5808010-BIM-A-0320 Johnson Controls Ducted Systems...
- Page 85 Subject to change without notice. Printed in U.S.A. 5808010-BIM-A-0320 Copyright © 2019 by Johnson Controls, Inc. All rights reserved. Supersedes: Nothing York International Corporation 5005 York Drive Norman, OK 73069...
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