Table of Contents
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R-410A
ZH SERIES W/SMART EQUIPMENT™
6-1/2 - 12-1/2 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Optional Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Optional Variable Air Volume (VAV) . . . . . . . . . . . . . . . . . . . . 35
Optional Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . . . . . 37
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Single Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1 ZH078-150 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZH078-150 Unit Accessory Weights . . . . . . . . . . . . . . . . . . . . 9
4 ZH078-150 Unit Physical Dimensions . . . . . . . . . . . . . . . . . . 10
5 ZH078-150 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Left/End Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10 ZH078-150 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . 31
12 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 32
13 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . . . 33
14 Smart Equipment™ Economizer Board Details . . . . . . . . . . 39
15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
16 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 44
17 Airflow Performance - Side Duct Application . . . . . . . . . . . . . 46
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
®
4 Predator
Component Location (ZH120 Shown) . . . . . . . . . . 6
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZH078-120 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 9
9 ZH150 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 ZH078-150 Unit Bottom Duct Openings . . . . . . . . . . . . . . . . 12
11 ZH078-150 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . . . . 13
12 ZH078-120 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . 13
13 ZH150 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . . . . 14
14 ZH078-150 Unit Left/End Duct Opening . . . . . . . . . . . . . . . . 14
15 ZH078-150 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
16 ZH078-150 Transition Roof Curb . . . . . . . . . . . . . . . . . . . . . 15
17 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 16
TABLE OF CONTENTS
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Free Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Control Board Navigation Components . . . . . . . . . . . . . . . . . . . . 62
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
LIST OF TABLES
18 Airflow Performance - Bottom Duct Application . . . . . . . . . . 48
19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 50
21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 50
22 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . . . . 52
23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 53
24 Electric Heat Limit Setting 50" Cabinet . . . . . . . . . . . . . . . . . 57
25 Electric Heat Limit Setting 42" Cabinet . . . . . . . . . . . . . . . . . 57
26 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 57
27 Gas Heat Limit Control Settings . . . . . . . . . . . . . . . . . . . . . . 59
28 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 59
29 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 61
30 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
31 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . . . . 63
33 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 69
LIST OF FIGURES
19 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
20 Save Side Panels For Economizer Hood Tops . . . . . . . . . . 16
21 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Heat and All Units With VFD Option . . . . . . . . . . . . . . . . . . 18
VFD Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
24 Typical Electronic Thermostat Field Wiring . . . . . . . . . . . . . 20
25 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
26 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
27 Simplified VFD Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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
5167515-YIM-H-0518
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Table of Contents
Related Manuals for Johnson Controls York ZH Series
Summary of Contents for Johnson Controls York ZH Series
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Page 1: Table Of Contents
R-410A 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
Observe all precautions in the literature, labels, and tags accompanying the equipment whenever working on air conditioning equipment. Be sure to follow all other applicable safety precautions and codes including ANSI Z223.1 or CSA- B149.1- latest edition. Johnson Controls Ducted Systems... - Page 3 • Manual Outdoor Air Damper (0-100%) This system uses R-410A Refrigerant which operates at • Manual Outdoor Air Damper (0-35%) higher pressures than R-22. No other refrigerant may be • Gas Heat Propane Conversion Kit used in this system. Johnson Controls Ducted Systems...
- Page 4 3 = NCO (Non-PWR Conv. Outlet) Outdoor Air Option 4 = PCO (Powered Conv. Outlet) 5 = DSC,NCO A = No Economizer 6 = DSC,PCO B = Economizer w/Barometric RLF D = Economizer w/Power EXH H = Motorized Damper Johnson Controls Ducted Systems...
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Page 5: Installation
In U.S.A.: plywood covering will drop to the ground. National Electrical Code, ANSI/NFPA No. 70 - Latest Remove the condenser coil external protective covering Edition prior to operation. National Fuel Gas Code, ANSI Z223.1 - Latest Edition Johnson Controls Ducted Systems... -
Page 6: Component Location (Zh120 Shown)
Side entry power York Sunline™ footprint to Toolless (high-efficiency compressor and control wiring the ZH Series footprints door latch w/crankcase heater) knockouts are also available (field installed accessory) ® Figure 4: Predator Component Location (ZH120 Shown) Johnson Controls Ducted Systems... -
Page 7: Location
If a unit is to be installed on a roof curb other than a ® varnishes, hydrochloric acid, cements and glues, York roof curb, gasketing must be applied to all antistatic fabric softeners for clothes dryers, masonry surfaces that come in contact with the unit underside. acid washing materials. Johnson Controls Ducted Systems... -
Page 8: Weights And Dimensions
Table 2: Weights and Dimensions Size Weight (lbs.) Center of Gravity 4 Point Load Location (lbs.) 6 Point Load Location (lbs.) Model (Tons) Shipping Operating (6.5) (7.5) 1052 1047 (8.5) 1095 1090 (10) 1285 1280 (12.5) Johnson Controls Ducted Systems... -
Page 9: Zh078-150 Unit Accessory Weights
3. Weight includes mounting hardware, controls and 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: ZH078-120 Physical Dimensions Johnson Controls Ducted Systems... -
Page 10: Zh078-150 Unit Physical Dimensions
6 3/16 ZH102 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 ZH120 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 ZH150 50 3/4 119 1/2 30 3/16 24 3/16 17 3/16 6 3/16 Johnson Controls Ducted Systems... -
Page 11: Zh078-150 Unit Clearances
1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge outlet. 2. Units may be installed on combustable floors made from wood or class A, B or C roof covering materials. Johnson Controls Ducted Systems... -
Page 12: Zh078-150 Unit Bottom Duct Openings
Bottom condensate drain 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: ZH078-150 Unit Bottom Duct Openings Johnson Controls Ducted Systems... -
Page 13: Zh078-150 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: ZH078-120 Unit Side Duct Openings Johnson Controls Ducted Systems... -
Page 14: Side Duct Dimensions
27 1/2 ZH102 28 1/4 18 1/16 28 1/4 18 1/4 ZH120 28 1/4 18 1/16 28 1/4 18 1/4 ZH150 28 1/4 18 1/16 28 1/4 18 1/4 4-5/16 Figure 14: ZH078-150 Unit Left/End Duct Opening Johnson Controls Ducted Systems... -
Page 15: Left/End Duct Dimensions
2 TYP. 50-1/2 INSULATED DECK UNDER COMPRESSOR SECTION FRONT 8 or 14 Figure 15: ZH078-150 Roof Curb 2 TYP 23 4 30-1/2 50-1/2 80-5/8 RETURN SUPPLY 76-5/8 59-1/4 FRONT RIGHT 64-1/4 Figure 16: ZH078-150 Transition Roof Curb Johnson Controls Ducted Systems... -
Page 16: Ductwork
The side condensate drain is reversible and maybe re-oriented to NOTE: Orientation. Panel is “insulation” side up. the rear of the cabinet to facilitate condensate piping. A condensate drain connection is available through the base pan Johnson Controls Ducted Systems... -
Page 17: Compressors
Voltage tolerances which must be maintained at the POE (polyolester) compressor lubricants are known to cause compressor terminals during starting and running conditions are long term damage to some synthetic roofing materials. indicated on the unit Rating Plate and Table 1. Johnson Controls Ducted Systems... -
Page 18: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat And All Units With Vfd Option
TERMINAL BLOCK TB1 FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 22: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat and All Units With VFD Option Johnson Controls Ducted Systems... -
Page 19: Control Wire Sizes
Wire Size Maximum Length with thermostat for general installation procedure. Color-coded, 18 AWG 150 Feet insulated wires should be used to connect the thermostat to the 1.From the unit to the thermostat and back to the unit. Johnson Controls Ducted Systems... -
Page 20: Typical Electronic Thermostat Field Wiring
Figure 24: Typical Electronic Thermostat Field Wiring 208/230-3-60 and 380/415-3-50 units control transformers are factory wired for 230v and 415v power supply respectively. Change tap on transformer for 208- 3-60 or 380-3-50 operation. See unit wiring diagram. Johnson Controls Ducted Systems... -
Page 21: Electrical Data
19.7 21.9 10.8 19.7 21.9 44.0 18.0 21.7 31.3 34.1 24.0 28.9 40.3 43.1 34.0 40.9 55.4 58.1 None 15.0 16.8 15.0 16.8 36.0 18.0 17.3 24.7 26.9 24.0 23.1 31.9 34.1 34.0 32.7 43.9 46.1 Johnson Controls Ducted Systems... - Page 22 None 25.8 27.6 18.0 17.3 26.2 28.4 62.0 13.5 24.0 23.1 33.4 35.6 34.0 32.7 45.4 47.6 54.0 52.0 56.5 58.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 23 21.0 23.2 10.8 21.0 23.2 44.0 18.0 21.7 32.9 35.7 24.0 28.9 42.0 44.7 34.0 40.9 57.0 59.7 None 16.2 18.0 16.2 18.0 36.0 18.0 17.3 26.2 28.4 24.0 23.1 33.4 35.6 34.0 32.7 45.4 47.6 Johnson Controls Ducted Systems...
- Page 24 None 27.4 29.2 18.0 17.3 28.2 30.4 62.0 13.5 24.0 23.1 35.4 37.6 34.0 32.7 47.4 49.6 54.0 52.0 58.5 60.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 25 24.7 26.9 10.8 24.7 26.9 44.0 18.0 21.7 37.6 40.3 24.0 28.9 46.6 49.3 34.0 40.9 61.6 64.4 None 19.0 20.8 19.0 21.1 36.0 18.0 17.3 29.7 31.9 24.0 23.1 36.9 39.1 34.0 32.7 48.9 51.1 Johnson Controls Ducted Systems...
- Page 26 None 29.8 31.6 18.0 17.3 31.2 33.4 62.0 13.5 24.0 23.1 38.4 40.6 34.0 32.7 50.4 52.6 54.0 52.0 61.5 63.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
- Page 27 26.0 28.2 10.8 26.0 28.4 44.0 18.0 21.7 39.2 41.9 24.0 28.9 48.2 51.0 34.0 40.9 63.2 66.0 None 20.2 22.0 20.3 22.6 36.0 18.0 17.3 31.2 33.4 24.0 23.1 38.4 40.6 34.0 32.7 50.4 52.6 Johnson Controls Ducted Systems...
- Page 28 None 31.4 33.2 18.0 17.3 33.2 35.4 62.0 13.5 24.0 23.1 40.4 42.6 34.0 32.7 52.4 54.6 54.0 52.0 63.5 65.7 1. Minimum Circuit Ampacity. 2. Dual Element, Time Delay Type. 3. HACR type per NEC. Johnson Controls Ducted Systems...
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Page 29: Zh078-150 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 30 Stage 60% of Full Capacity. 4. ZH120, ZH150 have crankcase heaters standard 5. 2 In. Throwaway, Standard, MERV (Minimum Efficiency Reporting Value) 3. 6. 2 In. Pleated, Optional, MERV 8. 7. 4 In. Pleated, Optional, MERV 13. Johnson Controls Ducted Systems...
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Page 31: Optional Electric Heat
2550 2550 2550 2550 208/230-3-60 3000 3000 3000 3500 460-3-60 3000 3000 3000 3000 (10) 600-3-60 3000 3000 3000 3500 208/230-3-60 3750 3750 3750 4000 460-3-60 3750 3750 3750 3750 (12.5) 600-3-60 3750 3750 3750 3750 Johnson Controls Ducted Systems... -
Page 32: Optional Gas Heat
NOTE: There may be a local gas utility requirement specifying a minimum diameter for gas piping. All units require a 3/4 inch pipe connection at the entrance fitting. Line should not be sized smaller than the entrance fitting size. Johnson Controls Ducted Systems... -
Page 33: Gas Heat Minimum Supply Air
Check all joints for leaks with soap solution or other All LP gas equipment must conform to the safety standards of material suitable for the purpose. NEVER USE A FLAME. the National Fire Protection Association. Johnson Controls Ducted Systems... -
Page 34: Options/Accessories
These heaters mount in the heat compartment with option or a field installed accessory. If factory installed, refer to the heating elements extending into the supply air chamber. All the instructions included with the outdoor air hood to complete Johnson Controls Ducted Systems... -
Page 35: Optional Variable Air Volume (Vav)
(1/4" diameter) must be field supplied and bypass mode. installed from the transducer to both the ductwork and to the atmosphere. Connect the tubing from the 'HIGH' pressure tap of Johnson Controls Ducted Systems... -
Page 36: Simplified Vfd Wiring
A terminal block located in the control box is provided for field vary greatly among manufacturers, horsepower ratings and connection of the VFD speed reference signal (2-10 VDC) and voltage requirements. Keep in mind that drive manufacturers to the normally-open, run-permit auxiliary contact. The use of Johnson Controls Ducted Systems... -
Page 37: Optional Hot Gas Bypass (Hgbp)
If at any time the economizer output drops below 100% the If the outside air temperature rises above the RAT plus 10°F, timer stops and resets when the economizer output returns to free cooling is no longer available. The outside air temperature 100%. Johnson Controls Ducted Systems... -
Page 38: Power Exhaust
Energizes exhaust fan when economizer output is above Setpoints Economizer Damper Position For Exhaust Fan On. a. Economizer Enable c. De-energizes exhaust fan when economizer output is below the Economizer Damper Position for Exhaust Fan b. Power Exhaust Enable Johnson Controls Ducted Systems... -
Page 39: Smart Equipment™ Economizer Board Details
Negative of the SA BUS communication Common for SA BUS power and circuit to the UCB. Through the unit wiring harness, may continue communication circuits on to the 4-stage board and/or fault detection & diagnostics board Johnson Controls Ducted Systems... - Page 40 24V~ IN Pin connections at right on upper edge of economizer board 24 VAC common connection to power the economizer board. 24 VAC transformer Common referenced to Connects through circuit traces to C/COM terminals and pins cabinet ground distributed on the economizer board. Johnson Controls Ducted Systems...
- Page 41 Connects through circuit trace to 24V~ IN pin HOT sensor BldgPres parameter reports input status (-.250-.250”/w/-.062- BLDG 0-5 VDC positive input from the Building .062kPa). Used for modulating power exhaust functions when PRES Pressure sensor ExFType selection is Modulating Damper or Variable Frequency Fan. Johnson Controls Ducted Systems...
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Page 42: Supply Air Limitations
If the blower or compressors rotate 120 (10) 3000 5000 in the wrong direction at start-up, the electrical connection to 150 (12.5) 3750 6250 the unit is misphased. Change the phasing of the Field Line Johnson Controls Ducted Systems... -
Page 43: Belt Adjustment
Air density correction factors are shown in Table 16 and Figure 30. Johnson Controls Ducted Systems... -
Page 44: Altitude/Temperature Correction Factors
Corrected BHP = 4.0 x 0.832 = 3.328 BHP at 5,000 ft. = 3.2 x .832 = 2.66 Example 2: A system, located at 5,000 feet of elevation, is to deliver 6,000 CFM at a static pressure of 1.5". Use the unit Johnson Controls Ducted Systems... - Page 45 5 Turns 4 Turns 3 Turns 2 Turns 1 Turn Fully Model (Tons) Sheave Sheave Open Open Open Open Open Open Closed 1.73 1VM50 AK74 1035 1079 1126 2.30 1VM50 AK64 1039 1094 1150 1207 1256 1308 Johnson Controls Ducted Systems...
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Page 46: Airflow Performance - Side 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. Johnson Controls Ducted Systems... - Page 47 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 48: 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 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
Re-checking set screws replace the dot plugs. after 10-12 hrs. run time is recommended. Tighten blower pulley and motor sheave set screws after any adjustments. Re-check set screws after 10-12 hrs. run time is recommended. Johnson Controls Ducted Systems... -
Page 51: Dry Coil Delta P
Determine the number of turns the variable motor sheave is open. ZH078 0.45 ZH102 ZH090 ZH120 ZH150 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. Adjustments of the blower speed and belt tension are REQUIRED. Verify proper sheave alignment; tighten blower pulley and motor sheave set screws after these adjustments. Re-checking set screws after 10-12 hrs. run time is recommended. Johnson Controls Ducted Systems... -
Page 53: Operation
Unit Control Board (UCB) which then determines whether requested operation is available and if so, which the requested operation is available and if so, which components to energize. With a "Y2" call for first stage Johnson Controls Ducted Systems... - Page 54 If the enthalpy of the outdoor air is below the set point VAV Cooling Supply Air Temp Upper Set point of the enthalpy controller (previously determined), "Y1" (default 60° F) Johnson Controls Ducted Systems...
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Page 55: Cooling Operation Errors
NOTE: The following components are needed to access the UCB will lock-out the associated compressor. If the other control points in the Smart Equipment™ control. compressor is inactive, the condenser fans will be de- Local LCD on Unit Control Board. energized. Johnson Controls Ducted Systems... -
Page 56: Electric Heating Sequence Of Operations
Delay (ASCD) is utilized to prevent operation of a compressor heater and energizing the blower. too soon after its previous run. Additionally, a minimum run time is imposed any time a compressor is energized. 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
Consequently, the control will respond in the same is lost. Normal operation is now allowed. manner as outlined above under “Limit Switch”. Johnson Controls Ducted Systems... -
Page 59: Start-Up (Cooling)
Check the type of gas being supplied. Be sure that it is the of a setting will result in longer heat cycles and a greater same as listed on the unit nameplate. temperature swing in the conditioned space. Reducing the Johnson Controls Ducted Systems... -
Page 60: Checking Gas Heat Input
If in doubt, it is better to leave the first stage of the local gas utility or propane supplier for corrective action. furnace slightly over-fired (greater than 60% input). Repeat Steps 1-6. Shut Down Set the thermostat to the lowest temperature setting. Johnson Controls Ducted Systems... -
Page 61: Gas Rate Cubic Feet Per Hour
NOTE: Each gas heat exchanger size has a minimum Manifold pressure adjustment procedure. allowable CFM. Below this CFM, the limit will open. Adjust second stage (100% input) pressure first, then adjust first stage (60% input) pressure. Johnson Controls Ducted Systems... -
Page 62: Charging The Unit
For more information on the Smart Equipment™ unit control board navigation, refer to the Smart Equipment™ Quick Start Guide. 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™ Ucb Details
Connects through circuit trace to the thermostat connection 24 VAC hot for switched inputs to the UCB strip R terminal, right FAN OVR pin, right HPS1 pin, right HPS2 pin, lower DFS pin and lower APS pin Johnson Controls Ducted Systems... - Page 64 Supply Air Temperature sensor input from 10KΩ with open circuit. Used in heat/cool staging cutouts, free cooling SAT+ @ 77°F, Type III negative temperature coefficient operation, demand ventilation operation, comfort ventilation thermistor operation, economizer loading operation, VAV cooling operation, hydronic heat operation. Johnson Controls Ducted Systems...
- Page 65 The VFD alarm contact switches from R within the unit wiring 24 VAC hot input from the normally open VFD VFDFLT harness. 24 VAC input results in unit shutdown and a “VFD alarm contact fault” alarm Johnson Controls Ducted Systems...
- Page 66 Lockout” and C1 output is then prevented until alarm reset. 24 VAC hot out for refrigerant circuit 2 High Not effective for one stage compressor UCBs. Connects HPS2 (right pin) Pressure Switch through circuit trace to the R terminal Johnson Controls Ducted Systems...
- Page 67 On-board, 2-line x 8-character back-lit display economizer, 4-stage and FDD board parameters Button for display menu acknowledgment and ENTER navigation Button for display menu navigation and zeroing of CANCEL active compressor ASCD timer 4-way Joystick for display menu navigation Johnson Controls Ducted Systems...
- Page 68 Green communication board Isolated Power Lit indicates the UCB is supplying power to the communication ISO PWR indicator sub-board 1. When wiring unit and other devices using the SA Bus and FC Bus, see Table 32. Johnson Controls Ducted Systems...
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Page 69: Cable For Fc Buses And Sa Buses In Order Of Preference . 69 33 Ignition Control Flash Codes
Energized With W1 Off Second Stage Gas Valve Gas Valve Energized With First Stage Gas Valve Off Gas Flow Gas Pressure Ignition Lockout Gas Valve Flame Sensor STEADY OFF No Power Or Control Failure 24VAC or Control Johnson Controls Ducted Systems... -
Page 70: Start-Up Sheet
5167515-YIM-H-0518 Start-Up Sheet Johnson Controls Ducted Systems... - Page 71 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
- Page 72 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
- Page 73 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
- Page 74 5167515-YIM-H-0518 Johnson Controls Ducted Systems...
- Page 75 Subject to change without notice. Printed in U.S.A. 5167515-YIM-H-0518 Copyright © 2018 by Johnson Controls, Inc. All rights reserved. Supersedes: 5167515-YIM-G-0118 York International Corporation 5005 York Drive Norman, OK 73069...
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