Table of Contents
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R-410A
ZW SERIES W/SMART EQUIPMENT™
3 - 5 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Optional Gas Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Single Enthalpy Changeover. . . . . . . . . . . . . . . . . . . . . . . 31
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . 31
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 ZWTA3 thru TA5 Unit Accessory Weights . . . . . . . . . . . . 8
3 ZWTA3 thru TA5 Unit Physical Dimensions . . . . . . . . . . 11
4 ZWTA3 thru TA5 Unit Clearances . . . . . . . . . . . . . . . . . 11
5 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Left/End Duct Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 14
7 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
10 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . 27
11 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . 28
12 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . 29
13 Smart Equipment™ Economizer Board Details . . . . . . . 33
14 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
15 Altitude/Temperature Correction Factors . . . . . . . . . . . . 37
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZWTA3 thru TA4 Physical Dimensions . . . . . . . . . . . . . . 9
9 ZWTA5 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . 10
10 ZWTA3 thru TA5 Unit Bottom Duct Openings . . . . . . . . 12
11 ZWTA3 thru TA5 Unit Electrical Entry . . . . . . . . . . . . . . 13
12 ZWTA3 thru TA5 Unit Side Duct Openings . . . . . . . . . . 13
13 ZWTA3 thru TA5 Unit Left/End Duct Opening . . . . . . . . 14
14 ZWTA3 thru TA5 Roof Curb . . . . . . . . . . . . . . . . . . . . . . 14
15 ZWTA3 thru TA5 Transition Roof Curb . . . . . . . . . . . . . 15
16 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . 15
TABLE OF CONTENTS
Free Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . 46
No Outdoor Air Options . . . . . . . . . . . . . . . . . . . . . . . . . 46
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . 46
Electric Heating Sequence Of Operations . . . . . . . . . . . . 47
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . 48
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . 49
Ignition Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . 49
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Control Board Navigation Components . . . . . . . . . . . . . . . . . 54
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
LIST OF TABLES
16 Airflow Performance - Side Duct Application . . . . . . . . . 40
17 Airflow Performance - Bottom Duct Application . . . . . . . 41
18 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
19 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . 42
20 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . 42
21 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . 44
22 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . 45
23 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . 48
24 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . 48
25 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 50
26 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . 52
27 Gas Heat Stages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
28 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . 55
30 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . 60
LIST OF FIGURES
17 Return Downflow Plenum With Panel . . . . . . . . . . . . . . 16
18 Discharge Panel In Place. . . . . . . . . . . . . . . . . . . . . . . . 16
19 Save Side Panels For Economizer Hood Tops . . . . . . . 16
20 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
21 Field Wiring Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . 18
22 Typical Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 19
23 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 28
24 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . 28
25 SE-ECO1001-1 Economizer Controller . . . . . . . . . . . . . 33
26 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
27 Altitude/Temperature Correction Factors . . . . . . . . . . . . 38
28 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
29 Typical Flame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
30 Typical Two Stage Gas Valve . . . . . . . . . . . . . . . . . . . . 53
31 Typical Single Stage Gas Valve. . . . . . . . . . . . . . . . . . . 54
32 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
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Related Manuals for TempMaster ZW Series
Summary of Contents for TempMaster ZW Series
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Page 1: Table Of Contents
19 Save Side Panels For Economizer Hood Tops ..16 4 TempMaster Component Location (ZWTA3 Shown) ..6 20 Condensate Drain ......16 5 Unit 4 Point Load Weight . -
Page 2: General
5565594-TIM-A-0818 General TempMaster ZW units are single package air conditioners with optional gas heating designed for outdoor installation on a Before performing service or maintenance operations on rooftop or slab and for non-residential use. These units can be unit, turn off main power switch to unit. Electrical shock equipped with factory or field installed electric heaters for could cause personal injury. - Page 3 Inspection Renewal Parts As soon as a unit is received, it should be inspected for possible Contact your local TempMaster parts distribution center for damage during transit. If damage is evident, the extent of the authorized replacement parts. damage should be noted on the carrier’s freight bill. A separate Approvals request for inspection by the carrier’s agent should be made in...
- Page 4 5565594-TIM-A-0818 Nomenclature 3-12.5 Ton Model Number Nomenclature Z W TA5 N 16 A 2 A A C 2 1 B A 8 Product Category Product Generation 8 = Eighth Generation Z = A/C, Single Pkg., R-410A Coated Coils Product Identifier A = Un-Coated W = 12.2 EER B = E-Coat Cond &...
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Page 5: Installation
5565594-TIM-A-0818 Installation Remove the condenser coil external protective covering prior to operation. Installation Safety Information Remove the toolless doorknobs and instruction packet prior to installation. Read these instructions before continuing this appliance installation. This is an outdoor combination heating and cooling unit. -
Page 6: Limitations
Slide-out drain pan knockouts with " NPT Compressor access (high- Intelligent control board efficiency compressor w/ connection for safe and efficient crankcase heater) Toolless door operation latch Figure 4: TempMaster Component Location (ZWTA3 Shown) Johnson Controls Ducted Systems... -
Page 7: Location
If a unit is to be installed on a roof curb other than a personal injury. Typical contaminates include: TempMaster roof curb, gasketing must be applied to all permanent wave solution, chlorinated waxes and surfaces that come in contact with the unit underside. -
Page 8: Weights And Dimensions
5565594-TIM-A-0818 All panels must be secured in place when the unit is lifted. The condenser coils should be protected from rigging cable damage with plywood or other suitable material. FRONT LEFT Figure 6: Unit 6 Point Load Weight FRONT LEFT FRONT LEFT Figure 5: Unit 4 Point Load Weight... -
Page 9: Zwta3 Thru Ta4 Physical Dimensions
5565594-TIM-A-0818 29.75 15.51 29.52 59.00 Ø 25.31 See detail A for gas inlet 11 3/8 See detail B for drain location LEFT 4 3/16 FRONT 21 3/16 27 5/16 Figure 8: ZWTA3 thru TA4 Physical Dimensions Johnson Controls Ducted Systems... -
Page 10: Zwta5 Physical Dimensions
5565594-TIM-A-0818 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 9: ZWTA5 Physical Dimensions Johnson Controls Ducted Systems... -
Page 11: Zwta3 Thru Ta5 Unit Physical Dimensions
5565594-TIM-A-0818 Table 4: ZWTA3 thru TA5 Unit Physical Dimensions Dimension (in.) Unit Model Number ZWTA3 22 1/8 18 3/16 15 3/16 6 3/16 ZWTA4 22 1/8 18 3/16 15 3/16 6 3/16 ZWTA5 22 1/8 18 3/16 15 3/16 6 3/16 Detail A Detail B 3.184... -
Page 12: Zwta3 Thru Ta5 Unit Bottom Duct Openings
5565594-TIM-A-0818 32 11/16 6 13/16 6 13/16 RETURN SUPPLY 27 1/2 LEFT RIGHT 20 1/8 19 1/8 17 1/8 12 5/16 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... -
Page 13: Side Duct Dimensions
5565594-TIM-A-0818 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: ZWTA3 thru TA5 Unit Electrical Entry 1 8 - 1 /4 D o t P l u g s Return Supply Air 2 - 3 1 /3 2... -
Page 14: Left/End Duct Dimensions
5565594-TIM-A-0818 4-5/16 Figure 13: ZWTA3 thru TA5 Unit Left/End Duct Opening Table 7: Left/End Duct Dimensions Dimension (in.) Unit Model Number ZWTA3 30.357 13.365 22.516 ZWTA4 30.357 13.365 22.516 ZWTA5 30.357 13.365 22.516 RIGHT 80-5/8 INSULATED DECK UNDER CONDENSER SECTION SUPPLY RETURN 2 TYP. -
Page 15: Ductwork
5565594-TIM-A-0818 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 15: ZWTA3 thru TA5 Transition Roof Curb Ductwork painted surface DOWN, facing the down flow duct opening. The supply panel is secured with the bracket (already in place from Ductwork should be designed and sized according to the the factory) and two screws. -
Page 16: Side Panels
5565594-TIM-A-0818 Condensate Drain The side condensate drain is reversible and maybe re-oriented to the rear of the cabinet to facilitate condensate piping. A condensate drain connection is available through the base pan for piping inside the roof curb. Trap the connection per Figure 20. The trap and drain lines should be protected from freezing. -
Page 17: Filters
A disconnect must be utilized for these units. Factory installed disconnects are available. If installing a disconnect (field supplied or TempMaster supplied accessory), refer to Figure 4 for the recommended mounting location. Do not loosen compressor mounting bolts. -
Page 18: Field Wiring Disconnect
5565594-TIM-A-0818 Power Wiring Detail Units are factory wired for the voltage shown on the unit Power wiring is brought into the unit through the side of the unit nameplate. Refer to Electrical Data Table 9 to size power or the basepan inside the curb. wiring, fuses, and disconnect switch. -
Page 19: Control Wire Sizes
5565594-TIM-A-0818 Thermostat Wiring unit. Refer to Table 8 for control wire sizing and maximum length. The thermostat should be located on an inside wall approximately 56 inch above the floor where it will not be Table 8: Control Wire Sizes subject to drafts, sun exposure or heat from electrical fixtures or Wire Size Maximum Length... -
Page 20: Electrical Data
5565594-TIM-A-0818 Table 9: Electrical Data ZWTA3 thru TA5 Standard Indoor Blower - 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/ (Tons) (Amps) - Page 21 5565594-TIM-A-0818 ZWTA3 thru TA5 Hi Static Indoor Blower - 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/ (Tons) (Amps) Size Pwr Exh...
- Page 22 5565594-TIM-A-0818 ZWTA3 thru TA5 Standard Indoor Blower - 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/ (Tons) (Amps) Size Pwr Exh RLA LRA...
- Page 23 5565594-TIM-A-0818 ZWTA3 thru TA5 Hi Static Blower - 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/ (Tons) (Amps) Size Pwr Exh RLA LRA...
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Page 24: Physical Data
5565594-TIM-A-0818 Table 10: Physical Data ZWTA3 thru TA5 Single Stage Gas Heat Physical Data Models Component ZWTA3 ZWTA4 ZWTA5 Nominal Tonnage AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (MBh) 36000 48500 59000 AHRI net capacity (MBh) 35000 47000 57000 12.2 12.2... - Page 25 5565594-TIM-A-0818 ZWTA3 thru TA5 Single Stage Gas Heat Physical Data (Continued) Models Component ZWTA3 ZWTA4 ZWTA5 Nominal Tonnage CONDENSER FAN DATA Quantity of fans Fan diameter (Inch) Type Prop Prop Prop Drive type Direct Direct Direct Quantity of motors Motor HP each No.
- Page 26 5565594-TIM-A-0818 ZWTA3 thru TA5 Two Stage Gas Heat Physical Data Models Component ZWTA3 ZWTA4 ZWTA5 Nominal Tonnage AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (MBh) 36000 48500 59000 AHRI net capacity (MBh) 35000 47000 57000 12.2 12.2 12.2 SEER 14.5 14.5...
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Page 27: Optional Electric Heat
5565594-TIM-A-0818 ZWTA3 thru TA5 Two Stage Gas Heat Physical Data (Continued) Models Component ZWTA3 ZWTA4 ZWTA5 Nominal Tonnage CONDENSER FAN DATA Quantity of fans Fan diameter (Inch) Type Prop Prop Prop Drive type Direct Direct Direct Quantity of motors Motor HP each No. -
Page 28: Optional Gas Heat
5565594-TIM-A-0818 Optional Gas Heat These gas-fired heaters have aluminized-steel or optional stainless steel, tubular heat exchangers with spark ignition. OPTIONAL Gas Piping COIL GUARD Proper sizing of gas piping depends on the cubic feet per hour SHOWN of gas flow required, specific gravity of the gas and the length of run. -
Page 29: Gas Heat Minimum Supply Air
Figures 23 and 24. All pipe nipples, fittings, and the Failure to follow the safety warning exactly could result gas cock are field supplied or may be purchased in TempMaster in serious injury, death or property damage. -
Page 30: Options/Accessories
5565594-TIM-A-0818 For satisfactory operation, LP gas pressure must be 10.5 inch installation. These heaters mount in the heat compartment with W.C. at the unit under full load. Maintaining proper gas the heating elements extending into the supply air chamber. All pressure depends on three main factors: electric heaters are fused and intended for use with single point power supply. -
Page 31: Economizer Sequences
5565594-TIM-A-0818 Motorized Outdoor Damper Speed Fan" set points, in relationship to the VFD output percentage. On a constant volume single speed supply fan The Motorized Outdoor Damper can be a factory installed system both set-points should be set to the same value. option or a field installed accessory. -
Page 32: Power Exhaust
5565594-TIM-A-0818 If at any time the economizer output goes above the minimum Thermostat position the timer stops and resets when the economizer output In free cooling, with a thermostat input to Y1, the dampers returns to minimum position. modulate to control the supply air temperature to the Economizer Setpoint +/- 1°F (default 55°F). -
Page 33: Smart Equipment™ Economizer Board Details
5565594-TIM-A-0818 Figure 25: SE-ECO1001-1 Economizer Controller Table 14: Smart Equipment™ Economizer Board Details Board Cover Description Function & Comments Label Label Directional orientation: viewed with the center text of the cover label upright ANALOG INPUTS Terminal at left on upper edge of economizer board 24 VAC common/0-10 VDC negative for Connects through circuit trace to 24V~ IN pin COM economizer actuator position feedback... - Page 34 5565594-TIM-A-0818 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label SA BUS Pin connections at left on upper edge of economizer board EconCtrlr parameter reports UCB-to-economizer board SA bus communication status. Negative of the SA BUS communication Common for SA BUS power and circuit to the UCB.
- Page 35 5565594-TIM-A-0818 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 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.
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Page 36: Supply Air Limitations
5565594-TIM-A-0818 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 24 VAC hot supplied for the building pressure 24V~ 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). -
Page 37: Altitude/Temperature Correction Factors
5565594-TIM-A-0818 Belt Tension The tension on the belt should be adjusted as shown in Figure 26. Procedure for adjusting belt tension: 1. Loosen six nuts (top and bottom) A. 2. Adjust by turning (B). 3. Never loosen nuts (C). 4. Use belt tension checker to apply a perpendicular force to one belt at the midpoint of the span as shown. -
Page 38: Altitude/Temperature Correction Factors
5565594-TIM-A-0818 1.100 1.050 1.000 Sea Level 0.950 1000 ft 0.900 2000 ft 3000 ft 0.850 4000 ft 0.800 5000 ft 6000 ft 0.750 7000 ft 8000 ft 0.700 9000 ft 10000 ft 0.650 0.600 Air Temperature (ºF) Figure 27: Altitude/Temperature Correction Factors The examples below will assist in determining the airflow blower tables to select the blower speed and the BHP performance of the product at altitude. - Page 39 5565594-TIM-A-0818 Drive Selection Determine side or bottom supply duct Application. Determine desired airflow. Calculate or measure the amount of external static pressure. Using the operating point determined from steps 1, 2 & 3, locate this point on the appropriate supply air blower performance table.
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Page 40: Airflow Performance
5565594-TIM-A-0818 Airflow Performance Table 17: Airflow Performance - Side Duct Application ZWTA3 (3.0 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 41: Airflow Performance - Bottom Duct Application
5565594-TIM-A-0818 Table 18: Airflow Performance - Bottom Duct Application ZWTA3 (3.0 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 42: Air Balance
5565594-TIM-A-0818 Table 19: RPM Selection Size Motor Blower 6 Turns 5 Turns 4 Turns 3 Turns 2 Turns 1 Turn Fully Model (Tons) Sheave Sheave Open Open Open Open Open Open Closed 1VP34 AK69 1VL44 AK69 1008 1062 1VP34 AK56 1VL44 AK56 1062... -
Page 43: Dry Coil Delta P
5565594-TIM-A-0818 Select the correct blower performance table for the unit from Tables 17 and 18. Tables are presented for side and down flow configuration. Determine the unit Measured CFM from the Blower Failure to properly adjust the total system air quantity Performance Table, External Static Pressure and the can result in extensive blower damage. -
Page 44: Motor Sheave Datum Diameters
5565594-TIM-A-0818 Supply Air Drive Adjustment EXAMPLE A 4 ton unit was selected to deliver 1,700 CFM with a 1.5 HP motor, but the unit is delivering 1,400 CFM. The variable pitch motor sheave is set at 3 turns open. Before making any blower speed changes review the Use the equation to determine the required DD for the new installation for any installation errors, leaks or undesirable motor sheave,... -
Page 45: Additional Static Resistance
5565594-TIM-A-0818 Table 23: Additional Static Resistance Electric Heat kW Size Model CFM Cooling Only Economizer 4” Pleated Filter (Tons) 0.05 -0.05 0.01 0.00 0.00 0.00 0.01 0.01 0.01 1000 0.05 -0.03 0.02 0.00 0.00 0.00 0.02 0.02 0.02 1100 0.04 -0.02 0.03 0.01... -
Page 46: Operation
Once the thermostat has been satisfied, it will de-energize “Y1”. If the compressor has satisfied its minimum run time, the For the ZW series of units, the thermostat makes a circuit compressor and condenser fan are de-energized. Otherwise, the between "R" and "Y1" for the first stage of cooling. -
Page 47: Electric Heating Sequence Of Operations
5565594-TIM-A-0818 (Anti-short cycle delay), and stop the condenser fans. If the call compressor. If the call for cooling is still present at the end of for cooling is still present at the conclusion of the ASCD, the the ASCD and the and the evaporator temperature sensor UCB will re-energize the halted compressor. -
Page 48: Electric Heat Operation Errors
5565594-TIM-A-0818 specified fan on delay for heating, the UCB will energize Table 24: Electric Heat Limit Setting the blower motor. LIMIT b The thermostat will cycle the electric heat to satisfy the HEATER UNIT (TONS) VOLTAGE SWITCH heating requirements of the conditioned space. OPENS °F Electric Heat Operation Errors ZWTA3 (3) -
Page 49: Gas Heating Sequence Of Operations
5565594-TIM-A-0818 Gas Heating Sequence Of Operations Recycle Operation When a flame is lost after the flame stabilization period, a recy- When the thermostat calls for the first stage of heating, the low- cle operation occurs. If the unit fails after five recycle attempts, voltage control circuit from “R”... -
Page 50: Start-Up (Cooling)
5565594-TIM-A-0818 the UCB will de-energize the indoor blower following the elapse Internal Microprocessor Failure of the fan off delay for heating. If the ICB detects an internal failure, it will cease all outputs, If voltage has been sensed at the GV for at least 15 seconds ignore inputs, and display the proper flash code for control during the fan on delay for heating and GV voltage or “W1”... -
Page 51: Start-Up (Gas Heat)
5565594-TIM-A-0818 NOTE: Prior to each cooling season, the crankcase heaters must be energized at least 10 hours before the system is put into operation. Set the room thermostat setting to lower than the room FIRE OR EXPLOSION HAZARD temperature. Failure to follow the safety warning exactly could result in serious injury, death or property damage. -
Page 52: Gas Rate Cubic Feet Per Hour
5565594-TIM-A-0818 To determine the rate of gas flow (First Stage) NOTE: To find the Btu input, multiply the number of cubic feet of gas consumed per hour by the Btu content of the gas Turn off all other gas appliances connected to the gas in your particular locality (contact your gas company for meter. -
Page 53: Gas Heat Stages
5565594-TIM-A-0818 Open the union fitting just upstream of the unit gas valve Table 28: Gas Heat Stages and downstream from the main manual shut-off valve in Unit 2nd Stage Total the gas supply line. # of Burner 1st Stage Input Input Size Opt. -
Page 54: Charging The Unit
5565594-TIM-A-0818 Control Board Navigation Components ELECTRICAL ADJUSTMENT TERMINALS The following components are needed to access the control points in the Smart Equipment™ control. Installation and operation guides are available from your equipment dealer or distributor. INLET OUTLET PRESSURE Local LCD on Unit Control Board. PRESSURE Mobile Access Portal (MAP) Gateway (Portable). -
Page 55: Smart Equipment™ Ucb Details
5565594-TIM-A-0818 Table 29: Smart Equipment™ UCB Details Description Function & Comments Terminal Directional orientation: viewed with silkscreen labels upright Limit, 24 VAC power and shutdown connections from unit wiring harness at left on upper edge of UCB Monitored 24 VAC input through heat section limit If voltage is absent, indicating the heat section is over- LIMIT switch(es) - Page 56 5565594-TIM-A-0818 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Green UCB SA bus communication transmission Lit/flickering indicates UCB SA bus communication is currently SA BUS indicator active, off indicates the UCB is awaiting SA bus communication Terminal Space temperature sensor connections at center on upper edge of UCB Positive of VDC circuit (3.625 VDC reading to COM with open Space Temperature sensor input from 10KΩ...
- Page 57 5565594-TIM-A-0818 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments When this optional input is enabled: the air proving switch must close within 30 seconds of initiation of indoor blower operation and not open for greater than 10 seconds during indoor blower APS (upper pin) 24 VAC hot return from Air Proving Switch operation to allow heat/cool operation and prevent an “APS...
- Page 58 5565594-TIM-A-0818 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Pin Refrigerant circuit safety switch and indoor blower overload connections at center on lower edge of UCB HPS1 24 VAC hot out for refrigerant circuit 1 High Connects through circuit trace to the R terminal (right pin) Pressure Switch Input is only considered if C1 output is needed;...
- Page 59 5565594-TIM-A-0818 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Also incorporated in the J8 6-pin phone jack connector at the left-center of the board. Positive of the VDC (typically, a fluctuating 1.5 to 3.5 volts reading to C; at least 0.25 volts Communication for SA BUS devices higher than –) SA BUS communication circuit to optional economizer board, 4-stage board, fault detection &...
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Page 60: Cable For Fc Buses And Sa Buses In Order Of Preference . 60 30 Ignition Control Flash Codes
5565594-TIM-A-0818 Table 30: Cable for FC Buses and SA Buses in Order of Preference Non-Plenum Applications Plenum Applications Bus and Cable Type Part Number O.D. Part Number O.D. Anixter: Anixter: CBL-22/3-FC-PLN CBL-22/3-FC-PVC 0.138 in. 0.140 in. FC Bus: 22 AWG Stranded, 3-Wire Twisted Shielded Cable Belden: B6501FE Belden®: B5501FE Anixter:... -
Page 61: Start-Up Sheet
5565594-TIM-A-0818 Start-Up Sheet Johnson Controls Ducted Systems... - Page 62 5565594-TIM-A-0818 Johnson Controls Ducted Systems...
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Page 66: 5565594-Tim-A-0818
Subject to change without notice. Printed in U.S.A. 5565594-TIM-A-0818 Copyright © 2018 by Johnson Controls, Inc. All rights reserved. Supersedes: 5121832-TIM-H-0518 York International Corporation 5005 York Drive Norman, OK 73069...
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