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R-410A
J**ZT SERIES W/SMART EQUIPMENT™
6.5 - 12.5 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Rigging and handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Side panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power and control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Optional electric heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Optional gas heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Options and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Economizer sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Smart Equipment™ economizer board . . . . . . . . . . . . . . . . . . 44
Airflow performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
1 Component location table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 J06 through J12ZT unit limitations . . . . . . . . . . . . . . . . . . . . . . 8
5 J06 through J12ZT unit accessory weights . . . . . . . . . . . . . . 11
6 J06 through J12ZT unit physical dimensions . . . . . . . . . . . . 13
7 J06 through J12ZT unit clearances . . . . . . . . . . . . . . . . . . . . 14
8 J06 through J08ZT side duct dimensions . . . . . . . . . . . . . . . 17
9 J10 through J12ZT side duct dimensions . . . . . . . . . . . . . . . 17
10 Left/end duct dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11 Control wire sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
13 Physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
14 Electric heat minimum supply air . . . . . . . . . . . . . . . . . . . . . . 35
15 Gas pipe sizing - capacity of pipe . . . . . . . . . . . . . . . . . . . . . 36
16 Gas heat minimum supply air . . . . . . . . . . . . . . . . . . . . . . . . 36
17 Supply air limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
18 Altitude/temperature correction factors . . . . . . . . . . . . . . . . . 49
19 Airflow performance - side duct application . . . . . . . . . . . . . . 51
20 Airflow performance - bottom duct application . . . . . . . . . . . 54
21 RPM selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
22 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 W units . . . . . . . . . . . . . . 10
6 4 point and 6 point load weight for V units . . . . . . . . . . . . . . 10
7 Center of gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 J06 through J08ZT physical dimensions . . . . . . . . . . . . . . . 12
9 J10 through J12ZT physical dimensions . . . . . . . . . . . . . . . 13
10 J06 through J12ZT unit bottom duct openings . . . . . . . . . . . 15
11 J06 through J12ZT unit electrical entry . . . . . . . . . . . . . . . . 16
12 J06 through J12ZT unit left/end duct opening . . . . . . . . . . . 18
13 J06 through J12ZT roof curb . . . . . . . . . . . . . . . . . . . . . . . . 18
14 J06 through J12ZT transition roof curb . . . . . . . . . . . . . . . . . 19
15 Side panels with hole plugs . . . . . . . . . . . . . . . . . . . . . . . . . 20
16 Return down flow plenum with panel . . . . . . . . . . . . . . . . . . 20
17 Discharge panel in place . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table of contents
Air balance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Checking air quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Cooling operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Reheat mode sequence of operation . . . . . . . . . . . . . . . . . . . 62
Electric heating sequence of operations . . . . . . . . . . . . . . . . . 64
Electric heat operation errors . . . . . . . . . . . . . . . . . . . . . . . . 64
Gas heating sequence of operations. . . . . . . . . . . . . . . . . . . . 64
Ignition control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Gas heating operation errors . . . . . . . . . . . . . . . . . . . . . . . . 65
Cooling start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Gas heat start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Checking gas heat input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Smart Equipment™ unit control board . . . . . . . . . . . . . . . . . . . . . 70
Charging the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Start-up sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
List of tables
23 Power exhaust specifications . . . . . . . . . . . . . . . . . . . . . . . . 56
24 Motor sheave datum diameters . . . . . . . . . . . . . . . . . . . . . . 58
mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
26 Electric heat limit setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
27 Electric heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . 64
28 Gas heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . . . 66
29 Gas rate cubic feet per hour . . . . . . . . . . . . . . . . . . . . . . . . . 68
30 Gas heat stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
31 Gas heat limit control settings . . . . . . . . . . . . . . . . . . . . . . . . 68
33 Ignition control flash codes . . . . . . . . . . . . . . . . . . . . . . . . . . 76
34 J06ZT charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 77
35 J06ZT charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 77
36 J07ZT charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 78
37 J07ZT charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 78
38 J08ZT charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 79
39 J08ZT charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 79
40 J10ZT charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 80
41 J10ZT charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 80
42 J12ZT charging table - system 1 . . . . . . . . . . . . . . . . . . . . . . 81
43 J12ZT charging table - system 2 . . . . . . . . . . . . . . . . . . . . . . 81
List of figures
18 Side panels for economizer hood tops . . . . . . . . . . . . . . . . . 21
19 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
20 Field wiring disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
21 Typical control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
22 Side entry gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
23 Bottom entry gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
24 Simplified VFD wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
25 SE-ECO1001-0 economizer controller . . . . . . . . . . . . . . . . . 44
26 Belt adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
27 Altitude/temperature correction factors . . . . . . . . . . . . . . . . 49
28 Dry coil delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
29 Cooling operation piping schematic - circuit no. 1 . . . . . . . . 63
30 Reheat operation piping schematic - circuit no. 1 . . . . . . . . 63
31 Typical flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
32 Typical two stage gas valve . . . . . . . . . . . . . . . . . . . . . . . . . 69
33 Unit control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5567612-JIM-C-1019
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Table of Contents
Related Manuals for Johnson Controls J ZT Series
Summary of Contents for Johnson Controls J ZT Series
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Page 1: Table Of Contents
R-410A J**ZT SERIES W/SMART EQUIPMENT™ 6.5 - 12.5 Ton 60 Hertz Table of contents General ..........2 Air balance. -
Page 2: General
5567612-JIM-C-1019 General Johnson Controls J06-12ZT 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 Renewal parts As soon as you receive a unit, you must inspect it for possible For authorized replacement parts call Johnson Controls, Inc. damage during transit. If damage is evident, note the extent of National Source 1 Parts outlet 1-866-523-9670.
- Page 4 5567612-JIM-C-1019 Nomenclature ® 6.5-12.5 Ton Johnson Controls Model Number Nomenclature J06 ZT C A 2 A 1 Nominal Cooling Capacity Product Generation J06 = 6.5 Ton 1 = First Generation J07 = 7.5 Ton 2 = Second Generation J08 = 8.5 Ton...
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Page 5: Installation
Note: If the unit is used during the construction phase, the Barometric relief hood in shipping location (if included) standard limited warranty provisions go into effect when the unit is placed into operation. Figure 2: Barometric relief hood - shipping location 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
Slide-out motor and blower assembly for easy adjustment and service 1. Roof curbs in eight-and fourteen-inch heights. Roof curbs to transition from a Johnson Controls J**ZE Series footprint to the J**ZT Series footprint are available as a field-installed accessory. Johnson Controls Ducted Systems... -
Page 8: J06 Through J12Zt Unit Limitations
Table 2: J06 through J12ZT unit limitations Unit limitations Size Model Unit voltage Applied voltage Outdoor DB temp (tons) Minimum Maximum Maximum (°F) 208/230-3-60 (6.5) 460-3-60 208/230-3-60 (7.5) 460-3-60 208/230-3-60 (8.5) 460-3-60 208/230-3-60 (10.0) 460-3-60 208/230-3-60 (12.5) 460-3-60 Johnson Controls Ducted Systems... -
Page 9: Location
All units require particular clearances for proper operation and lifted. service. The installer must make provisions for adequate The condenser coils must be protected from rigging combustion and ventilation air in accordance with section 5.3 of cable damage with plywood or another suitable material. Johnson Controls Ducted Systems... -
Page 10: 4 Point And 6 Point Load Weight For W Units
FRONT Figure 5: 4 point and 6 point load weight for W units FRONT FRONT LEFT LEFT Figure 6: 4 point and 6 point load weight for V units FRONT LEFT Figure 7: Center of gravity Johnson Controls Ducted Systems... -
Page 11: J06 Through J12Zt Standard Unit Weights And Dimensions
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: J06 Through J08Zt Physical Dimensions
14.92 4X Ø 24.38 14.92 58.09 14.92 29.95 30.11 SEE DETAIL A FOR GAS INLET 11.38 SEE DETAIL B 59.00 4.19 FOR DRAIN LOCATION 27.31 LEFT 21.19 89.00 FRONT Figure 8: J06 through J08ZT physical dimensions Johnson Controls Ducted Systems... -
Page 13: J06 Through J12Zt Unit Physical Dimensions
Table 6: J06 through J12ZT unit physical dimensions Dimension (in.) Unit model number J06ZT, J07ZT, J08ZT 22 1/8 18 3/16 15 3/16 6 3/16 J10ZT, J12ZT 50 3/4 119 1/2 30 3/16 24 3/16 17 3/16 6 3/16 Johnson Controls Ducted Systems... -
Page 14: J06 Through J12Zt 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: J06 Through J12Zt 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: J06 through J12ZT unit bottom duct openings Johnson Controls Ducted Systems... -
Page 16: J06 Through J12Zt Unit Electrical Entry
5567612-JIM-C-1019 Disconnect Swith Cover Power Entry Ø 2-1/2 Control Entry Ø 7/8 Power Entry Ø 2-1/2 Convenience Outlet Cover Convenience Outlet Power Entry Ø 7/8 FRONT Figure 11: J06 through J12ZT unit electrical entry Johnson Controls Ducted Systems... -
Page 17: J06 Through J08Zt Side Duct Dimensions
J10 through J12ZT unit side duct openings Dot Plugs 18-1/4 5-5/32 2-7/8 31-5/8 Table 9: J10 through J12ZT side duct dimensions Dimension (in.) Unit model number J10, J12ZT 28 1/4 18 1/16 28 1/4 18 1/4 Johnson Controls Ducted Systems... -
Page 18: Left/End Duct Dimensions
30.358 22.580 22.330 J10, J12ZT 30.358 22.580 22.330 RIGHT 80-5/8 INSULATED DECK UNDER CONDENSER SECTION SUPPLY RETURN 2 TYP. 50-1/2 INSULATED DECK UNDER COMPRESSOR SECTION FRONT 8 or 14 Figure 13: J06 through J12ZT roof curb Johnson Controls Ducted Systems... -
Page 19: J06 Through J12Zt Transition Roof Curb
5567612-JIM-C-1019 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: J06 through J12ZT transition roof curb Johnson Controls Ducted Systems... -
Page 20: 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 21: 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 22: Filters
If you install a disconnect, you must number and size of filters needed for the unit. use a field supplied or Johnson Controls supplied accessory. Do not operate the unit without filters properly installed. See Figure 4 for the recommended mounting location. -
Page 23: Field Wiring Disconnect
See Table 12, Electrical data, on page 25 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 24: 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 25: Electrical Data
149.4 156.3 None 57.3 62.8 43.3 62.6 69.5 230 16.2 16.2 110 110 57.7 80.6 87.5 (10) 81.8 110.8 117.6 129.9 138.4 145.3 None 26.9 29.1 21.7 31.4 34.1 28.9 40.4 43.1 40.9 55.4 58.1 69.3 Johnson Controls Ducted Systems... - Page 26 (12.5) 81.8 114.3 121.1 129.9 141.9 148.8 None 30.2 32.4 21.7 35.8 8.5 66.1 66.1 28.9 44.8 40.9 59.8 70.9 73.6 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 27 70.8 100.5 107.4 40.6 112.7 152.9 159.8 None 60.1 65.6 43.3 66.1 230 16.2 16.2 110 57.7 84.1 (10) 81.8 114.3 121.1 129.9 141.9 148.8 None 28.2 30.4 21.7 35.8 28.9 44.8 40.9 59.8 70.9 73.6 Johnson Controls Ducted Systems...
- Page 28 81.8 119.8 126.6 129.9 147.4 154.3 None 32.1 34.3 21.7 35.4 38.1 66.1 66.1 28.9 44.4 47.1 40.9 59.4 62.1 73.3 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 29 40.6 112.7 161.9 168.8 None 67.3 72.8 43.3 75.1 230 16.2 16.2 110 57.7 93.1 (10) 81.8 123.3 130.1 129.9 150.9 157.8 None 31.9 34.1 21.7 37.6 40.4 28.9 46.6 49.4 40.9 61.6 64.4 75.5 78.3 Johnson Controls Ducted Systems...
- Page 30 103.5 (12.5) 81.8 126.8 133.6 129.9 154.4 161.3 None 35.2 37.4 21.7 39.3 66.1 66.1 28.9 48.3 40.9 63.3 77.1 79.9 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 31 40.6 112.7 165.4 172.3 None 70.1 75.6 43.3 78.6 85.5 230 16.2 16.2 110 110 57.7 96.6 103.5 (10) 81.8 126.8 133.6 129.9 154.4 161.3 None 33.2 35.4 21.7 39.3 28.9 48.3 40.9 63.3 77.1 79.9 Johnson Controls Ducted Systems...
- Page 32 139.1 129.9 159.9 166.8 None 37.1 39.3 21.7 41.6 44.4 8.5 66.1 66.1 28.9 50.6 53.4 40.9 65.6 68.4 79.5 82.3 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
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Page 33: Physical Data
Condenser coil data Face area (sq. ft.) 29.0 29.0 29.0 47.5 47.5 Rows Fins per inch Tube diameter (in.)/MM .71/18 1.0/25 .71/18 0.71/18 0.71/18 2-pass 2-pass 3-pass 2-pass 3-pass Circuitry type Microchannel Microchannel Microchannel Microchannel Microchannel Johnson Controls Ducted Systems... - Page 34 4. J06ZT, J07ZT, J08ZT, J10ZT, and J12ZT have crankcase heaters as 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 35: Optional Electric Heat
See Table 15, 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 If the parameter all compressors off in free cooling is on, free If the stage 1 cooling demand (Y1 input) remains on for 20 cooling is used regardless of the number of cooling stages minutes, the economizer remains at 100% for an additional 5 demanded. Johnson Controls Ducted Systems...
- Page 42 -3°F, then all compressor outputs de-energize As soon as the staged percent command begins to increase, and the economizer closes. the economizer remains at 100%. If the operating space temperature drops to less than 0.6°F above the operating Johnson Controls Ducted Systems...
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Page 43: Power Exhaust
De-energizes the exhaust fan when the economizer lower than the operating VAV SAT setpoint -5°F, the output is below the economizer damper position for compressors de-energize every 5 minutes until all the exhaust fan off compressors are off. Johnson Controls Ducted Systems... -
Page 44: 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 45 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 46 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 47 - 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 48: Supply Air Limitations
Air density correction factors are shown in Table 18 and Figure 27. Re-tighten the belt nuts. 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 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 52 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 53 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 54: 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. Johnson Controls Ducted Systems... - Page 55 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 56: Rpm Selection
Re-check the set screws after 10-12 hours Note: De-energize the compressors before you take any test of run time. measurements to ensure that the evaporator coil is dry. Johnson Controls Ducted Systems... -
Page 57: Dry Coil Delta P
Pressure drop across a dry indoor coil versus supply air CFM for all unit tonnages 7000 6000 5000 4000 3000 2000 1000 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Pressure drop (IWG) 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 it is for 100% return air. If the resistance of the return air duct is less than 0.25 IWG, the unit delivers less CFM during full economizer operation. Johnson Controls Ducted Systems...
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Page 60: Operation
When the R to G and the economizer dampers are modulated to maintain circuit is opened, the damper spring returns fully closed. supply air temperature to within +/- 1 degree of the cooling Johnson Controls Ducted Systems... -
Page 61: Cooling Operation Errors
The ASCD is initiated on unit start-up and on any compressor If the UCB detects the evaporator low limit sensor (EC1) falling reset or lock-out. below 26°F (default) three times within two hours of operation, the UCB locks out the compressor. Johnson Controls Ducted Systems... -
Page 62: Reheat Mode Sequence Of Operation
UCB energizes solenoids SOL 3 (HGRH), cooling (Y3) SOL 2 and the reheat relay (RHR), which de-energizes SOL 1. The unit then operates with refrigerant flow in the evaporator reheat coil and condenser coil circuit # 1. See Figure 30. Johnson Controls Ducted Systems... -
Page 63: Cooling Operation Piping Schematic - Circuit No. 1
The aux mode available with hot gas reheat units introduces an control in the space. The aux mode is only applicable when the operating mode that considers the dry bulb temperature in the unit is set up in the alternate reheat mode. Johnson Controls Ducted Systems... -
Page 64: Electric Heating Sequence Of Operations
The draft motor performs a 30-second post purge. Ignition control board First stage of heating When the ICB receives a call for first stage of heating, “W1,” the draft motor is energized. Once the draft motor has been proven, Johnson Controls Ducted Systems... -
Page 65: Gas Heating Operation Errors
Table 13. It heating. resets automatically. The limit switch operates when a high temperature condition, caused by inadequate supply air flow occurs. This shuts down the heater and energizes the blower. Johnson Controls Ducted Systems... -
Page 66: Cooling Start-Up
Check the type of gas supply. Verify that it is the same as the gas supply listed on the unit nameplate. Verify that the vent outlet and combustion air inlet are free of any debris or obstruction. Johnson Controls Ducted Systems... -
Page 67: Checking Gas Heat Input
(greater than 60% input). Set the thermostat to the lowest temperature setting. Turn off electrical power to unit. Repeat Steps 1-6. Open the gas heat access panel. Turn the gas valve clockwise to the OFF position (see Figure 32). Johnson Controls Ducted Systems... -
Page 68: Gas Rate Cubic Feet Per Hour
Take readings of both the return air and Adjust the second stage (100% input) pressure first, then adjust the heated air in the ducts (about 6 feet from the furnace) first stage (60% input) pressure. where they are not affected by radiant heat. Johnson Controls Ducted Systems... -
Page 69: Navigation Components For The Smart Equipment™ Control Board
Note: For more in-depth sequence of operation of the Smart Equipment™ control, refer to the Smart Equipment™ HEAT EXCHANGER TUBE Controls Sequence of Operation Overview LIT- 12011950. SUPPLY PIPE BURNER BURNER FLAME (BLUE ONLY) BURNER BRACKET IGNITOR Figure 31: Typical flame Johnson Controls Ducted Systems... -
Page 70: 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 71 #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 72 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 73 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 74 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 75 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 76: 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 77: Charging The Unit
Outdoor DB Liquid temp. Delta T Db Indoor Db/Wb pressure temp. pressure 300 CFM/ton 80/62 300 CFM/ton 80/67 300 CFM/ton 80/72 300 CFM/ton 75/62 400 CFM/ton 80/62 400 CFM/ton 80/67 400 CFM/ton 80/72 400 CFM/ton 75/62 Johnson Controls Ducted Systems... -
Page 78: J07Zt Charging Table - System 1
Outdoor DB Liquid temp. Delta T Db Indoor Db/Wb pressure temp. pressure 300 CFM/ton 80/62 300 CFM/ton 80/67 300 CFM/ton 80/72 300 CFM/ton 75/62 400 CFM/ton 80/62 400 CFM/ton 80/67 400 CFM/ton 80/72 400 CFM/ton 75/62 Johnson Controls Ducted Systems... -
Page 79: J08Zt Charging Table - System 1
Outdoor DB Liquid temp. Delta T Db Indoor Db/Wb pressure temp. pressure 300 CFM/ton 80/62 300 CFM/ton 80/67 300 CFM/ton 80/72 300 CFM/ton 75/62 400 CFM/ton 80/62 400 CFM/ton 80/67 400 CFM/ton 80/72 400 CFM/ton 75/62 Johnson Controls Ducted Systems... -
Page 80: J10Zt Charging Table - System 1
Outdoor DB Liquid temp. Delta T Db Indoor Db/Wb pressure temp. pressure 300 CFM/ton 80/62 300 CFM/ton 80/67 300 CFM/ton 80/72 300 CFM/ton 75/62 400 CFM/ton 80/62 400 CFM/ton 80/67 400 CFM/ton 80/72 400 CFM/ton 75/62 Johnson Controls Ducted Systems... -
Page 81: J12Zt Charging Table - System 1
Outdoor DB Liquid temp. Delta T Db Indoor Db/Wb pressure temp. pressure 300 CFM/ton 80/62 300 CFM/ton 80/67 300 CFM/ton 80/72 300 CFM/ton 75/62 400 CFM/ton 80/62 400 CFM/ton 80/67 400 CFM/ton 80/72 400 CFM/ton 75/62 Johnson Controls Ducted Systems... -
Page 82: Start-Up Sheet
5567612-JIM-C-1019 Start-up sheet Johnson Controls Ducted Systems... - Page 83 5567612-JIM-C-1019 Johnson Controls Ducted Systems...
- Page 84 5567612-JIM-C-1019 Johnson Controls Ducted Systems...
- Page 85 5567612-JIM-C-1019 Johnson Controls Ducted Systems...
- Page 86 5567612-JIM-C-1019 Johnson Controls Ducted Systems...
- Page 87 Subject to change without notice. Printed in U.S.A. 5567612-JIM-C-1019 Copyright © 2019 by Johnson Controls, Inc. All rights reserved. Supersedes: 5567612-JIM-B-1218 York International Corporation 5005 York Drive Norman, OK 73069...
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