Table of Contents
Advertisement
Quick Links
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Optional Gas Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Single Enthalpy Changeover. . . . . . . . . . . . . . . . . . . . . . . 29
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . 29
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1 ZWTA3 thru TA5 Unit Limitations . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZWTA3 thru TA5 Unit Accessory Weights . . . . . . . . . . . . 8
4 ZWTA3 thru TA5 Unit Physical Dimensions . . . . . . . . . . 11
5 ZWTA3 thru TA5 Unit Clearances . . . . . . . . . . . . . . . . . 11
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Left/End Duct Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 14
8 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
11 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . 25
12 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . 26
13 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . 27
14 Smart Equipment™ Economizer Board Details . . . . . . . 31
15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
16 Altitude/Temperature Correction Factors . . . . . . . . . . . . 35
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. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . 44
No Outdoor Air Options . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . 44
Electric Heating Sequence Of Operations . . . . . . . . . . . . 45
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . 46
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . 47
Ignition Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . 47
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Control Board Navigation Components . . . . . . . . . . . . . . . . . 51
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
LIST OF TABLES
17 Airflow Performance - Side Duct Application . . . . . . . . . 38
18 Airflow Performance - Bottom Duct Application . . . . . . . 39
19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . 40
21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . 40
22 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . 42
23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . 43
24 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . 46
25 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . 46
26 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 48
27 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . 50
28 Gas Heat Stages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
29 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . 52
31 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . 58
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 . . . . . . . . . . . . . . . . . . . . . . . . . . 26
24 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . 26
25 SE-ECO1001-1 Economizer Controller . . . . . . . . . . . . . 31
26 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
27 Altitude/Temperature Correction Factors . . . . . . . . . . . . 36
28 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
29 Typical Flame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
30 Typical Two Stage Gas Valve . . . . . . . . . . . . . . . . . . . . 51
31 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Advertisement
Table of Contents
Related Manuals for York ZWTA3
Summary of Contents for York ZWTA3
-
Page 1: Table Of Contents
29 Typical Flame....... . . 51 14 ZWTA3 thru TA5 Roof Curb ..... . 14 30 Typical Two Stage Gas Valve . -
Page 2: General
5803642-TIM-B-0620 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 Improper installation may create a condition where the forms: operation of the product could cause personal injury or • Technical Guide - ZWTA3 thru TA5, 5123247 property damage. • General Installation - ZWTA3 thru TA5, 5803642 • Smart Equipment™ Control Quick Start Guide - 1136326 •...
- Page 4 5803642-TIM-B-0620 Nomenclature 3-12.5 Ton Model Number Nomenclature Z W TA5 N 16 A 2 A A C 2 1 B A 9 Product Generation Product Category 8 = Eighth Generation 9 = Ninth Generation Z = A/C, Single Pkg., R-410A Coated Coils Product Identifier A = Un-Coated...
-
Page 5: Installation
5803642-TIM-B-0620 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
5803642-TIM-B-0620 Table 1: ZWTA3 thru TA5 Unit Limitations Unit Limitations Size Model Unit Voltage Applied Voltage Outdoor DB Temp (Tons) Max (°F) 208/230-3-60 460-3-60 (3.0) 575-3-60 208/230-3-60 460-3-60 (4.0) 575-3-60 208/230-3-60 460-3-60 (5.0) 575-3-60 Location Code, ANSI Z223.1 – Latest Edition (in U.S.A.), or Sections 7.2, 7.3, or 7.4 of Gas Installation Codes, CSA-B149.1 (in Canada) -... -
Page 8: Weights And Dimensions
Size Weight (lbs.) Center of Gravity 4 Point Load Location (lbs.) 6 Point Load Location (lbs.) Model (Tons) Shipping Operating Table 3: ZWTA3 thru TA5 Unit Accessory Weights Weight (lbs.) Unit Accessory Shipping Operating Economizer Power Exhaust Electric Heat Gas Heat 1. -
Page 9: Zwta3 Thru Ta4 Physical Dimensions
5803642-TIM-B-0620 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
5803642-TIM-B-0620 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
5803642-TIM-B-0620 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... -
Page 12: Zwta3 Thru Ta5 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: ZWTA3 thru TA5 Unit Bottom Duct Openings Johnson Controls Ducted Systems... -
Page 13: Side Duct Dimensions
Supply Air 2 - 3 1 /3 2 5 - 5 /3 2 3 1 - 1 1 /1 6 Figure 12: ZWTA3 thru TA5 Unit Side Duct Openings Table 6: Side Duct Dimensions Dimension (in.) Unit Model Number ZWTA3... -
Page 14: Left/End Duct Dimensions
5803642-TIM-B-0620 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... -
Page 15: Ductwork
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
5803642-TIM-B-0620 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
5803642-TIM-B-0620 Exposure, even if immediately cleaned up, may cause 208/230-3-60 and 380/415-3-50 units control embrittlement (leading to cracking) to occur in one year transformers are factory wired for 230v and 415v power or more. When performing any service that may risk supply respectively. -
Page 18: Field Wiring Disconnect
5803642-TIM-B-0620 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
5803642-TIM-B-0620 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
5803642-TIM-B-0620 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... - Page 21 5803642-TIM-B-0620 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)
- Page 22 5803642-TIM-B-0620 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)
- Page 23 5803642-TIM-B-0620 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)
-
Page 24: Physical Data
5803642-TIM-B-0620 Table 10: Physical Data 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... -
Page 25: Optional Electric Heat
5803642-TIM-B-0620 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 26: Optional Gas Heat
5803642-TIM-B-0620 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 27: Gas Heat Minimum Supply Air
5803642-TIM-B-0620 Table 13: Gas Heat Minimum Supply Air Supply Air (CFM) Size Model Heat Size Heating (Tons) (N,S)06 2220 (N,S)08 2370 (N,S)11 1130 1800 (N,S)06 2220 (N,S)08 2370 (N,S)11 1290 2250 (N,S)08 2370 (N,S)11 1380 2570 (N,S)16 1580 2630 Gas Connection The gas supply line can be routed within the space and roof curb, exiting through the unit’s basepan. -
Page 28: Options/Accessories
5803642-TIM-B-0620 For satisfactory operation, LP gas pressure must be 10.5 inch electric heaters are fused and intended for use with single point W.C. at the unit under full load. Maintaining proper gas power supply. pressure depends on three main factors: Smoke Detectors The vaporization rate which depends on the temperature of the liquid and the “wetted surface”... -
Page 29: Economizer Sequences
5803642-TIM-B-0620 the assembly. Field installed Motorized Outdoor Damper Free Cooling accessories include complete instructions for installation. Four types of free cooling options are available: dry bulb changeover, single enthalpy, dual enthalpy changeover, and Economizer Auto. The Economizer can be a factory installed option or a field installed accessory. -
Page 30: Power Exhaust
5803642-TIM-B-0620 In free cooling, with a thermostat input to Y1, the dampers If at any time the economizer output goes above the minimum modulate to control the supply air temperature to the position the timer stops and resets when the economizer output Economizer Setpoint +/- 1°F (default 55°F). -
Page 31: Smart Equipment™ Economizer Board Details
5803642-TIM-B-0620 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 32 5803642-TIM-B-0620 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 33 5803642-TIM-B-0620 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.
-
Page 34: Supply Air Limitations
5803642-TIM-B-0620 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 35: Altitude/Temperature Correction Factors
5803642-TIM-B-0620 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 36: Altitude/Temperature Correction Factors
5803642-TIM-B-0620 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 37 5803642-TIM-B-0620 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.
-
Page 38: Airflow Performance
5803642-TIM-B-0620 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 39: Airflow Performance - Bottom Duct Application
5803642-TIM-B-0620 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 40: Air Balance
5803642-TIM-B-0620 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 41: Dry Coil Delta P
Determine the number of turns the variable motor sheave is open. 0.45 ZWTA4 ZWTA5 0.35 0.25 ZWTA3 0.15 0.05 1000 1500 2000 2500 3000 3500... -
Page 42: Motor Sheave Datum Diameters
5803642-TIM-B-0620 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 43: Additional Static Resistance
5803642-TIM-B-0620 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 44: Operation
5803642-TIM-B-0620 Operation If the outdoor air enthalpy is above the setpoint, “Y1” energizes the compressor and condenser fan motor only. Cooling Sequence Of 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. -
Page 45: Electric Heating Sequence Of Operations
5803642-TIM-B-0620 (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 46: Electric Heat Operation Errors
UNIT (TONS) VOLTAGE SWITCH heating requirements of the conditioned space. OPENS °F Electric Heat Operation Errors ZWTA3 (3) 208/230 Temperature Limit If the UCB senses zero volts from the high temperature limit, the indoor blower motor is immediately energized. ZWTA4 (4) 208/230 This limit is monitored regardless of unit operation status, i.e. -
Page 47: Gas Heating Sequence Of Operations
5803642-TIM-B-0620 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 48: Start-Up (Cooling)
5803642-TIM-B-0620 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 49: Start-Up (Gas Heat)
5803642-TIM-B-0620 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 50: Gas Rate Cubic Feet Per Hour
5803642-TIM-B-0620 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 51: Charging The Unit
5803642-TIM-B-0620 Table 28: Gas Heat Stages Unit 2nd Stage Total # of Burner 1st Stage HEAT EXCHANGER TUBE Input Input Size Opt. Tubes Input (Mbh) (Mbh) (Mbh) (N,S)06 (N,S)08 SUPPLY (N,S)11 PIPE BURNER BURNER FLAME (N,S)06 (BLUE ONLY) (N,S)08 BURNER BRACKET IGNITOR (N,S)11 (N,S)08... -
Page 52: Smart Equipment™ Ucb Details
5803642-TIM-B-0620 THERMOSTAT WIRED HERE SD-24 Figure 31: Unit Control Board 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... - Page 53 5803642-TIM-B-0620 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Terminal Thermostat connection strip on left edge of UCB 1st stage heating request, 24 VAC input switched Not effective for cooling-only units from R 2nd stage heating request, 24 VAC input switched Not effective for cooling-only units or units with single-stage from R heat sections...
- Page 54 5803642-TIM-B-0620 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Input required for operation; 3.625 VDC reading RAT+ to RAT– Return Air Temperature sensor input from 10KΩ with open circuit. Used in return air enthalpy calculation. RAT+ @ 77°F, Type III negative temperature coefficient Substitutes for space temperature if no other space thermistor temperature input is present.
- Page 55 5803642-TIM-B-0620 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Terminal at lower right corner of UCB Output relay circuitry is isolated from other UCB components 24 VAC hot for H1, H2, CN-FAN, AUX HGR, FAN 24V FOR OUTPUTS and the 24 VAC hot source may be from a second transformer C1 and C2 output relay contact switching in the unit...
- Page 56 5803642-TIM-B-0620 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Not effective for one stage compressor UCBs. Input is only considered if C2 output is needed; input must be present to HPS2 24 VAC hot return from refrigerant circuit 2 High allow C1 output.
- Page 57 5803642-TIM-B-0620 Table 29: Smart Equipment™ UCB Details (Continued) Description Function & Comments Factory wired SA Bus connector Optional communication sub-board at center of UCB Terminal FC BUS connections on left edge of the communication board Positive of the VDC (typically, a fluctuating 1.5 to 3.5 volts FC (“Field Connected”) BUS BACnet MSTP reading to COM;...
-
Page 58: Cable For Fc Buses And Sa Buses In Order Of Preference . 58 31 Ignition Control Flash Codes
5803642-TIM-B-0620 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 59: Start-Up Sheet
5803642-TIM-B-0620 Start-Up Sheet Johnson Controls Ducted Systems... - Page 60 5803642-TIM-B-0620 Johnson Controls Ducted Systems...
- Page 61 5803642-TIM-B-0620 Johnson Controls Ducted Systems...
- Page 62 5803642-TIM-B-0620 Johnson Controls Ducted Systems...
- Page 63 5803642-TIM-B-0620 Johnson Controls Ducted Systems...
-
Page 64: 5803642-Tim-B-0620
Subject to change without notice. Printed in U.S.A. 5803642-TIM-B-0620 Copyright © 2020 by Johnson Controls, Inc. All rights reserved. Supersedes: 5803642-TIM-A-0220 York International Corporation 5005 York Drive Norman, OK 73069...