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Johnson Controls ZW-06 Installation Manual
Johnson Controls ZW-06 Installation Manual

Johnson Controls ZW-06 Installation Manual

R-410a w/smart equipment 6-1/2 - 12-1/2 ton 60 hertz

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R-410A
ZW 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Optional Variable Air Volume (VAV) . . . . . . . . . . . . . . . . . . . . 34
Optional Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . . . . . 36
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Single Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1 ZW-06 thru -12 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZW-06 thru -12 Unit Accessory Weights . . . . . . . . . . . . . . . . . 9
4 ZW-06 thru -12 Unit Physical Dimensions . . . . . . . . . . . . . . . 11
5 ZW-06 thru -12 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . 11
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Left/End Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . 31
12 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 32
13 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . . . 32
14 Smart Equipment™ Economizer Board Details . . . . . . . . . . 38
15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
16 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 43
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 ZW Component Location (ZW-10 Shown) . . . . . . . . . . . . . . . 6
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZW-06 thru -10 Physical Dimensions . . . . . . . . . . . . . . . . . . . 9
9 ZW-12 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 ZW-06 thru -12 Unit Bottom Duct Openings . . . . . . . . . . . . . 12
11 ZW-06 thru -12 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . 13
12 ZW-06 thru -10 Unit Side Duct Openings . . . . . . . . . . . . . . . 13
13 ZW-12 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . . . . 14
14 ZW-06 thru -12 Unit Left/End Duct Opening . . . . . . . . . . . . . 14
15 ZW-06 thru -12 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . 15
16 ZW-06 thru -12 Transition Roof Curb . . . . . . . . . . . . . . . . . . 15
17 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 16
TABLE OF CONTENTS
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Free Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Airflow Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . 52
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 55
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 55
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 56
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 56
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Control Board Navigation Components . . . . . . . . . . . . . . . . . . . . 60
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
LIST OF TABLES
17 Airflow Performance - Side Duct Application . . . . . . . . . . . . 45
18 Airflow Performance - Bottom Duct Application . . . . . . . . . . 47
19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 49
21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 49
22 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . . . . 51
23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 52
24 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
25 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 55
26 Gas Heat Limit Control Settings . . . . . . . . . . . . . . . . . . . . . . 57
27 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 57
28 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 59
29 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
30 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . . . . 61
31 Cable for FC Buses and SA Buses in Order of Preference . 67
32 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 67
LIST OF FIGURES
19 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
20 Save Side Panels For Economizer Hood Tops . . . . . . . . . . 16
21 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
22 Field Wiring Disconnect - Cooling Unit With/Without Electric
Heat and All Units With VFD Option . . . . . . . . . . . . . . . . . . 18
23 Field Wiring Disconnect - Cooling Unit With Gas Heat Without
VFD Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
24 Typical Electronic Thermostat Field Wiring . . . . . . . . . . . . . 20
25 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
26 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
27 Simplified VFD Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
28 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . . . . 38
29 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
30 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 43
31 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
32 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
33 Typical Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
34 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5803636-BIM-A-0220

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Summary of Contents for Johnson Controls ZW-06

  • Page 1 30 Altitude/Temperature Correction Factors ....43 15 ZW-06 thru -12 Roof Curb ......15 31 Dry Coil Delta P .
  • Page 2 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 Additional information is available in the following reference forms: • Technical Guide - ZW-06 thru -12, 5167796 • General Installation - ZW-06 thru -12, 5565604 Improper installation may create a condition where the • Smart Equipment™ Control Quick Start Guide - 1136326 operation of the product could cause personal injury or •...
  • Page 4 3 = NCO (Non-PWR Conv. Outlet) 4 = PCO (Powered Conv. Outlet) 5 = DSC,NCO 6 = DSC,PCO Outdoor Air Option A = No Economizer B = Economizer w/Barometric RLF D = Economizer w/Power EXH H = Motorized Damper Johnson Controls Ducted Systems...
  • Page 5 In U.S.A.: Remove the condenser coil external protective covering National Electrical Code, ANSI/NFPA No. 70 - Latest prior to operation. Edition National Fuel Gas Code, ANSI Z223.1 - Latest Edition Johnson Controls Ducted Systems...
  • Page 6 Compressor #1 access Side entry power DHB/DUC/HC/DUS footprint to Toolless (high-efficiency compressor and control wiring the ZW Series footprints are door latch w/crankcase heater) knockouts also available (field-installed accessory) Figure 4: ZW Component Location (ZW-10 Shown) Johnson Controls Ducted Systems...
  • Page 7 5803636-BIM-A-0220 Table 1: ZW-06 thru -12 Unit Limitations Unit Limitations Size Model Unit Voltage Applied Voltage Outdoor DB Temp (Tons) Max (°F) 208/230-3-60 460-3-60 (6.5) 575-3-60 208/230-3-60 460-3-60 (7.5) 575-3-60 208/230-3-60 460-3-60 (8.5) 575-3-60 208/230-3-60 460-3-60 (10) 575-3-60 208/230-3-60 460-3-60 (12.5)
  • Page 8 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 1035 1030 (6.5) 1055 1050 (7.5) 1065 1060 (8.5) 1075 1070 (10) 1285 1280 (12.5) Johnson Controls Ducted Systems...
  • Page 9 5803636-BIM-A-0220 Table 3: ZW-06 thru -12 Unit Accessory Weights Weight (lbs.) Unit Accessory Shipping Operating Economizer Power Exhaust Electric Heat Gas Heat Variable Frequency Drive 1. Weight given is for the maximum heater size available (54KW). 2. Weight given is for the maximum number of tube heat exchangers available (8 tube).
  • Page 10 29.03 29.03 14.85 Ø 24.58 TYP. 4 PL. 15.23 See detail A for gas inlet 11 3/8 See detail B for drain location 21 3/16 LEFT 4 3/16 FRONT 27 5/16 Figure 9: ZW-12 Physical Dimensions Johnson Controls Ducted Systems...
  • Page 11 5803636-BIM-A-0220 Table 4: ZW-06 thru -12 Unit Physical Dimensions Dimension (in.) Unit Model Number ZW-06 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 ZW-07 50 3/4 30 3/16 24 3/16 17 3/16 6 3/16 ZW-08 50 3/4 30 3/16...
  • Page 12 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: ZW-06 thru -12 Unit Bottom Duct Openings Johnson Controls Ducted Systems...
  • Page 13 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: ZW-06 thru -10 Unit Side Duct Openings Johnson Controls Ducted Systems...
  • Page 14 28 1/4 18 1/16 28 1/4 18 1/4 ZW-10 28 1/4 18 1/16 28 1/4 18 1/4 ZW-12 28 1/4 18 1/16 28 1/4 18 1/4 4-5/16 Figure 14: ZW-06 thru -12 Unit Left/End Duct Opening Johnson Controls Ducted Systems...
  • Page 15 50-1/2 COMPRESSOR SECTION FRONT 8 or 14 Figure 15: ZW-06 thru -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 16: ZW-06 thru -12 Transition Roof Curb Johnson Controls Ducted Systems...
  • Page 16 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 Rating Plate and Table 1. 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 18 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 5803636-BIM-A-0220 CONTACTOR 1M FACTORY OR FIELD GROUND SUPPLIED DISCONNECT THREE PHASE POWER SUPPLY Figure 23: Field Wiring Disconnect - Cooling Unit With Gas Heat Without VFD Option Johnson Controls Ducted Systems...
  • Page 20 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 5803636-BIM-A-0220 Table 9: Electrical Data ZW-06 thru -12 Standard Motor - Without Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr...
  • Page 22 5803636-BIM-A-0220 ZW-06 thru -12 Standard Motor - Without Powered Convenience Outlet (Continued) OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr (Tons)
  • Page 23 5803636-BIM-A-0220 ZW-06 thru -12 Hi Static Motor - Without Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr (Tons)
  • Page 24 5803636-BIM-A-0220 ZW-06 thru -12 Hi Static Motor - Without Powered Convenience Outlet (Continued) OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr...
  • Page 25 5803636-BIM-A-0220 ZW-06 thru -12 Standard Motor - With Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr (Tons) (Amps)
  • Page 26 5803636-BIM-A-0220 ZW-06 thru -12 Standard Motor - With Powered Convenience Outlet (Continued) OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr (Tons)
  • Page 27 5803636-BIM-A-0220 ZW-06 thru -12 Hi Static Motor - With Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr (Tons)
  • Page 28 5803636-BIM-A-0220 ZW-06 thru -12 Hi Static Motor - With Powered Convenience Outlet (Continued) OD Fan Supply Max Fuse Compressors Max Fuse Motors Blower Conv Electric Heat Option Breaker (each) Size w/Pwr Breaker (each) Motor Motor Outlet Volt Size w/ Pwr...
  • Page 29 5803636-BIM-A-0220 Table 10: Physical Data ZW-06 thru -12 Physical Data Models Component ZW-06 ZW-07 ZW-08 ZW-10 ZW-12 Nominal Tonnage 12.5 AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (Btu) 76000 88000 99700 124000 154000 AHRI net capacity (Btu) 74000...
  • Page 30 2. Cooling Unit with Gas Heat 3. 1 Stage 50% of Full Capacity. 4. ZW-06 through ZW-12 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.
  • Page 31 Refer to the Pipe Sizing Table 12. The heating value of the gas may differ with locality. The value should be checked with the local gas utility. Figure 25: Side Entry Gas Piping Johnson Controls Ducted Systems...
  • Page 32 The gas supply should be a separate line and installed in accordance with all safety codes as prescribed under “Limitations”. Johnson Controls Ducted Systems...
  • Page 33 W.C. at the unit under full load. Maintaining proper gas power supply. pressure depends on three main factors: The vaporization rate which depends on the temperature of the liquid and the “wetted surface” area of the container(s). Johnson Controls Ducted Systems...
  • Page 34 (1/4" diameter) must be field supplied and the assembly. Field installed Motorized Outdoor Damper installed from the transducer to both the ductwork and to the accessories include complete instructions for installation. atmosphere. Connect the tubing from the 'HIGH' pressure tap of Johnson Controls Ducted Systems...
  • Page 35 • DRIVE - routes power through the VFD for modulating nuts. After removing the wire nuts, connect the wires to the control of the indoor blower motor. field-installed VFD per the VFD wiring diagram (See Figure 27). Johnson Controls Ducted Systems...
  • Page 36 Several functions can drive the economizer, including: minimum humidity = dual enthalpy position, free cooling, economizer loading, and minimum outdoor air supply. • If either the return or outside air dry bulb sensors are unreliable, free cooling is not available Economizer Minimum Position Johnson Controls Ducted Systems...
  • Page 37 Economizer Damper Position for Exhaust Fan If the economizer output goes to minimum position and the SAT is less than Economizer Setpoint -1°F, the control starts a 12- minute timer to de-energize a compressor output. Johnson Controls Ducted Systems...
  • Page 38 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 39 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 40 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...
  • Page 41 Change the phasing of the Field Line Connection at the factory or field supplied disconnect to The tension on the belt should be adjusted as shown in Figure 29. obtain proper rotation. (Scroll compressors operate in only one Johnson Controls Ducted Systems...
  • Page 42 Air density correction factors are shown in Table 16 and Figure 30. Johnson Controls Ducted Systems...
  • Page 43 This value must be corrected for elevation. 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 BHP at 5,000 ft. = 3.2 x .832 = 2.66 Johnson Controls Ducted Systems...
  • Page 44 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...
  • Page 45 5803636-BIM-A-0220 Airflow Performance Table 17: Airflow Performance - Side Duct Application ZW-06 (6.5 Ton) Side Duct Available External Static Pressure - IWG Air Flow (CFM) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard 1.5 HP &...
  • Page 46 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 5803636-BIM-A-0220 Table 18: Airflow Performance - Bottom Duct Application ZW-06 (6.5 Ton) Bottom Duct Available External Static Pressure - IWG Air Flow (CFM) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard 1.5 HP &...
  • Page 48 2.30 1VM50 AK89 (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 49 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 50 Determine the number of turns the variable motor sheave is open. ZW-06 ZW-07 0.45 ZW-08 ZW-10 ZW-12 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 51 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 52 UCB will close and send 24 volts to the M2 contactor starting supplied power source to prevent over-pressurizing and the first stage compressor and the associated condenser fan possible damage to the ductwork. Johnson Controls Ducted Systems...
  • Page 53 Upon the final compressor de-energizing, the blower is stopped following the elapse of the fan off delay for cooling. Johnson Controls Ducted Systems...
  • Page 54 During cooling operation, if the Evaporator Low Limit Sensor (EC1, 2) (Located on the Suction Line at the Evaporator Coil.) Johnson Controls Ducted Systems...
  • Page 55 If the temperature limit opens three times within one hour, it will heat anticipator setting. lock-on the indoor blower motor. Table 25: Electric Heat Anticipator Setpoints Safety Controls SETTING, AMPS The UCB monitors the temperature limit switch of electric heat units. 0.13 Johnson Controls Ducted Systems...
  • Page 56 If this sequence is satisfied, the second main valve permit an ignition sequence and the draft motor is energized. If of the GV is opened. this failure should occur during an ignition cycle the failure is counted as a recycle. Johnson Controls Ducted Systems...
  • Page 57 Size Opt. conditioned space. Refer to Table 27 for the required gas heat ZW-06 anticipator setting. ZW-07 Table 27: Gas Heat Anticipator Setpoints SETTING, AMPS ZW-08 ZW-10 0.65 ZW-12 Johnson Controls Ducted Systems...
  • Page 58 The intended input for each furnace is shown in Table 29. The table applies to units operating on 60 Hz power only. This furnace is equipped with an automatic re-ignition system. DO NOT attempt to manually light the pilot. Johnson Controls Ducted Systems...
  • Page 59 Be sure not to over-fire the unit on second stage. After the high manifold pressure has been checked, adjust the thermostat to call for first stage heat. Johnson Controls Ducted Systems...
  • Page 60 Burners are now accessible for inspection and/or NOTE: For more in-depth sequence of operation of the Smart replacement. Equipment™ control, refer to the Smart Equipment™ Controls Sequence of Operation Overview LIT- NOTE: Reverse the above procedure to replace the 12011950. assemblies. Johnson Controls Ducted Systems...
  • Page 61 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 62 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 63 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 re- sults in unit shutdown and a “VFD alarm contact fault” alarm Johnson Controls Ducted Systems...
  • Page 64 Lockout” and C1 output is then prevented until alarm reset. HPS2 24 VAC hot out for refrigerant circuit 2 High Not effective for one stage compressor UCBs. Connects (right pin) Pressure Switch through circuit trace to the R terminal Johnson Controls Ducted Systems...
  • Page 65 4-way Joystick for display menu navigation Item USB connector at right of UCB Used for backup, restoration, & copying of board parameters as Type A female Universal Serial Bus connector well as board software updating through a flash drive Johnson Controls Ducted Systems...
  • Page 66 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...
  • Page 67 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 68 5803636-BIM-A-0220 Start-Up Sheet Johnson Controls Ducted Systems...
  • Page 69 5803636-BIM-A-0220 Johnson Controls Ducted Systems...
  • Page 70 5803636-BIM-A-0220 Johnson Controls Ducted Systems...
  • Page 71 5803636-BIM-A-0220 Johnson Controls Ducted Systems...
  • Page 72 5803636-BIM-A-0220 Johnson Controls Ducted Systems...
  • Page 73 Subject to change without notice. Printed in U.S.A. 5803636-BIM-A-0220 Copyright © 2020 by Johnson Controls, Inc. All rights reserved. Supersedes: 5565604-BIM-B-1018 York International Corporation 5005 York Drive Norman, OK 73069...

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Zw seriesZw-07Zw-08Zw-10Zw-12