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R-410A
ZV SERIES W/SMART EQUIPMENT™
3 - 5 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Optional Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Single Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1 ZV-A3 thru -A5 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZV-A3 thru -A5 Unit Accessory Weights . . . . . . . . . . . . . . . . . 9
4 ZV-A3 thru -A5 Unit Physical Dimensions . . . . . . . . . . . . . . . 10
5 ZV-A3 thru -A5 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . 10
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Left/End Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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 . . . . . . . . . . 32
15 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
16 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 36
17 Airflow Performance - Side Duct Application . . . . . . . . . . . . . 39
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 ZV Component Location (ZV-A3 Shown) . . . . . . . . . . . . . . . . 7
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 ZV-A3 thru -A5 Physical Dimensions . . . . . . . . . . . . . . . . . . . 9
8 ZV-A3 thru -A5 Unit Bottom Duct Openings . . . . . . . . . . . . . 11
9 ZV-A3 thru -A5 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . 12
10 ZV-A3 thru -A5 Unit Side Duct Openings . . . . . . . . . . . . . . . 12
11 ZV-A3 thru -A5 Unit Left Duct Opening . . . . . . . . . . . . . . . . 13
12 ZV-A3 thru -A5 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . 13
13 ZV-A3 thru -A5 Transition Roof Curb . . . . . . . . . . . . . . . . . . 14
14 ZV-A3 thru -A5 Roof Curb Cutaway . . . . . . . . . . . . . . . . . . . 14
15 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 15
16 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 15
TABLE OF CONTENTS
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Free Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Airflow Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 46
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 46
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 47
Ignition Control Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 48
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Control Board Navigation Components . . . . . . . . . . . . . . . . . . . . 52
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
LIST OF TABLES
18 Airflow Performance - Bottom Duct Application . . . . . . . . . . 40
19 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
20 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 41
21 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 41
22 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . . . . 43
23 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 44
24 Electric Heat Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
25 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 47
26 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 49
27 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 51
28 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
29 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . . . . 53
31 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 59
32 ZV-A3 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
33 ZV-A4 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
34 ZV-A5 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
LIST OF FIGURES
17 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
18 Save Side Panels For Economizer Hood Tops . . . . . . . . . . 15
19 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
20 Field Wiring Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
21 Typical Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
22 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
23 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
24 Simplified VFD Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
25 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . . . . 32
26 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
27 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 37
28 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
29 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
30 Typical Two Stage Gas Valve . . . . . . . . . . . . . . . . . . . . . . . 52
31 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5370598-BIM-C-0518
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Summary of Contents for York ZV Series
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Page 1: Table Of Contents
R-410A ZV SERIES W/SMART EQUIPMENT™ 3 - 5 Ton 60 Hertz TABLE OF CONTENTS General ..........2 Auto . -
Page 2: General
5370598-BIM-C-0518 General Ducted Systems ZK 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 5370598-BIM-C-0518 Inspection Renewal Parts As soon as a unit is received, it should be inspected for possible Contact your local Ducted Systems 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.
- Page 4 5370598-BIM-C-0518 Nomenclature 3-5 Ton Model Number Nomenclature -A3 C A 2 A 1 Product Generation Product Category 1 = First Generation 2 = Second Generation Z = A/C, Single Pkg., R-410A Cabinet Options Product Identifier A = Std Cabinet V = Pkg AC R410A Ultra High Eff E = SSD (SST Drain Pan) R = Reverse Drain Pan Nominal Cooling Capacity...
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Page 5: Installation
5370598-BIM-C-0518 Installation Installation Safety Information FIRE OR EXPLOSION HAZARD Read these instructions before continuing this appliance installation. This is an outdoor combination heating and cooling Failure to follow the safety warning exactly could result unit. The installer must assure that these instructions are made in serious injury, death or property damage. -
Page 6: Limitations
5370598-BIM-C-0518 National Fuel Gas Code, ANSI Z223.1 - Latest Edition Gas-Fired Central Furnace Standard, ANSI Z21.47a. - Latest Edition Local building codes, and Local gas utility requirements In Canada: Toolless Doorknobs Canadian Electrical Code, CSA C22.1 Installation Codes, CSA - B149.1. Local plumbing and waste water codes, and Other applicable local codes. -
Page 7: Location
5370598-BIM-C-0518 High Efficiency Filter access ECM Outdoor Fan motor SineWave Fin Evaporator Coil (2" or 4” Micro-Channel Aluminum w/IntelliSpeed™ Supply Fan Controls filter options) Tube/Aluminum Fin w/screw connectors for T-stat Disconnect location Condenser wiring and Network (optional disconnect switch) Connections Premium Efficiency Belt-drive blower motor Second model nameplate... -
Page 8: Rigging And Handling
5370598-BIM-C-0518 Excessive exposure of this furnace to contaminated Before lifting, make sure the unit weight is distributed combustion air may result in equipment damage or equally on the rigging cables so it will lift evenly. personal injury. Typical contaminates include: permanent wave solution, chlorinated waxes and Units may be moved or lifted with a forklift. -
Page 9: Zv-A3 Thru -A5 Unit Accessory Weights
5370598-BIM-C-0518 Table 3: ZV-A3 thru -A5 Unit Accessory Weights Weight (lbs.) Unit Accessory Shipping Operating Economizer Power Exhaust Electric Heat Gas Heat 1. Weight given is for the maximum heater size available (24KW). 2. Weight given is for the maximum number of tube heat exchangers available (8 tube). -
Page 10: Zv-A3 Thru -A5 Unit Physical Dimensions
5370598-BIM-C-0518 Table 4: ZV-A3 thru -A5 Unit Physical Dimensions Dimension (in.) Unit Model Number ZV-A3 22 1/8 18 3/16 15 3/16 6 3/16 ZV-A4 22 1/8 18 3/16 15 3/16 6 3/16 ZV-A5 22 1/8 18 3/16 15 3/16 6 3/16 Detail A Detail B 3.184... -
Page 11: Zv-A3 Thru -A5 Unit Bottom Duct Openings
5370598-BIM-C-0518 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 12: Side Duct Dimensions
5370598-BIM-C-0518 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 9: ZV-A3 thru -A5 Unit Electrical Entry 1 8 - 1 /4 D o t P l u g s Return Supply Air 2 - 3 1 /3 2... -
Page 13: Left/End Duct Dimensions
5370598-BIM-C-0518 4-5/16 Figure 11: ZV-A3 thru -A5 Unit Left Duct Opening Table 7: Left/End Duct Dimensions Dimension (in.) Unit Model Number ZV-A3 30.357 13.365 22.516 ZV-A4 30.357 13.365 22.516 ZV-A5 30.357 13.365 22.516 RIGHT 80-5/8 INSULATED DECK UNDER CONDENSER SECTION SUPPLY RETURN 2 TYP. -
Page 14: Zv-A3 Thru -A5 Transition Roof Curb
5370598-BIM-C-0518 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 13: ZV-A3 thru -A5 Transition Roof Curb 2“ 3/4” X 1-1/4” WIDE GASKETING FOR CURB FRAME AND ALL DUCT SUPPORT SURFACES UNIT BASE 3.75” WOOD NAILER 3.56”... -
Page 15: Ductwork
5370598-BIM-C-0518 Ductwork Ductwork should be designed and sized according to the methods in Manual D of the Air Conditioning Contractors of America (ACCA) or as recommended by any other recognized authority such as ASHRAE or SMACNA. A closed return duct system should be used. This will not preclude use of economizers or outdoor fresh air intake. -
Page 16: Compressors
5370598-BIM-C-0518 condensate drain connection is available through the base pan readily. POE oil can absorb 15 times as much water as other oils for piping inside the roof curb. Trap the connection per Figure 19. designed for HCFC and CFC refrigerants. Take all necessary The trap and drain lines should be protected from freezing. -
Page 17: Filters
5370598-BIM-C-0518 comply with electrical codes should not be required. If any of Filters the wire supplied with the unit must be replaced, replacement Two-inch filters are supplied with each unit. One-inch filters may wire must be of the type shown on the wiring diagram and the be used with no modification to the filter racks. -
Page 18: Field Wiring Disconnect
5370598-BIM-C-0518 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
5370598-BIM-C-0518 unit. Refer to Table 8 for control wire sizing and maximum Thermostat Wiring 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 appliances. -
Page 20: Electrical Data
5370598-BIM-C-0518 Table 9: Electrical Data ZV-A3 thru -A5 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 5370598-BIM-C-0518 ZV-A3 thru -A5 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 5370598-BIM-C-0518 ZV-A3 thru -A5 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 (Amps)
- Page 23 5370598-BIM-C-0518 ZV-A3 thru -A5 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
5370598-BIM-C-0518 Table 10: Physical Data ZV-A3 thru -A5 Models Component ZV-A3 ZV-A4 ZV-A5 Nominal Tonnage AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (MBh) 38000 51200 61600 AHRI net capacity (MBh) 37000 50000 60000 13.05 14.0 13.00 SEER (208/230 & 460V) 17.0 17.5 16.3... -
Page 25: Optional Electric Heat
5370598-BIM-C-0518 ZV-A3 thru -A5 (Continued) Models Component ZV-A3 ZV-A4 ZV-A5 Nominal Tonnage CONDENSER FAN DATA Quantity of fans Fan diameter (Inch) Type Prop Prop Prop Drive type Direct ECM Direct ECM Direct ECM Quantity of motors Motor HP each No. speeds Var. -
Page 26: Optional Gas Heat
5370598-BIM-C-0518 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
5370598-BIM-C-0518 Table 13: Gas Heat Minimum Supply Air Supply Air (CFM) Size Model Heat Size Heating (Tons) 2220 2370 1130 1800 2220 2370 1290 2250 2370 1380 2570 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
5370598-BIM-C-0518 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: Simplified Vfd Wiring
5370598-BIM-C-0518 the assembly. Field installed Motorized Outdoor Damper Manual Bypass accessories include complete instructions for installation. An optional, factory-installed manual bypass switch available with factory-installed VFD can be found in the Blower Motor Economizer Access compartment and has the following three positions: The Economizer can be a factory installed option or a field installed accessory. -
Page 30: Economizer Sequences
5370598-BIM-C-0518 • Return and outside air dry bulb = dry bulb changeover Economizer Sequences • Return and outside air dry bulb and outside air humidity = Several functions can drive the economizer, including: minimum single enthalpy position, free cooling, economizer loading, and minimum •... - Page 31 5370598-BIM-C-0518 If the demand for cooling from the space/return is satisfied, the Inputs economizer output will modulate to minimum position and the No inputs are present for non-modulating power exhaust. compressor outputs will be de-energized as long as their minimum run timers have expired. Outputs Power Exhaust a.
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Page 32: Smart Equipment™ Economizer Board Details
5370598-BIM-C-0518 Figure 25: SE-ECO1001-0 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 33 5370598-BIM-C-0518 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label EconCtrlr parameter reports UCB-to-economizer board SA BUS communication status. Positive of the VDC (typically, a fluctuating 1.5 to 3.5 volts reading to C; at least 0.25 volts lower –...
- Page 34 5370598-BIM-C-0518 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 24 VAC hot connection to power the economizer board. 24 VAC transformer HOT Connects through circuit traces to R/24V~ terminals and pins distributed on the economizer board. ANALOG INPUTS Terminal on lower edge of economizer board 24 VAC hot supplied for the outdoor air 24V~...
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Page 35: Supply Air Limitations
5370598-BIM-C-0518 Table 14: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 24 VAC common/0-5 VDC negative for the Connects through circuit trace to 24V~ IN pin COM building pressure sensor BINARY INPUTS at right on lower edge of economizer board Purge parameter reports input status (False with 0 VAC input- True with 24 VAC input). -
Page 36: Altitude/Temperature Correction Factors
5370598-BIM-C-0518 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 37: Altitude/Temperature Correction Factors
5370598-BIM-C-0518 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 38 5370598-BIM-C-0518 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 39: Airflow Performance - Side Duct Application
5370598-BIM-C-0518 Airflow Performance Table 17: Airflow Performance - Side Duct Application ZV-A3 (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 40: Airflow Performance - Bottom Duct Application
5370598-BIM-C-0518 Table 18: Airflow Performance - Bottom Duct Application ZV-A3 (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 41: Air Balance
5370598-BIM-C-0518 Table 19: RPM Selection Size Motor Blower 6 Turns 5 Turns 4 Turns 3 Turns 2 Turns 1 Turn Fully Model Airflow Option (Tons) Sheave Sheave Open Open Open Open Open Open Closed Field Supplied 1VL34 AK79 Std. 1VL40 AK79 H. -
Page 42: Dry Coil Delta P
5370598-BIM-C-0518 NOTE: De-energize the compressors before taking any test Use an Inclined Manometer or Magnehelic to determine measurements to assure a dry evaporator coil. the pressure drop across the unit. This is the External Static Pressure (ESP). In order to obtain an accurate The CFM through the unit can be determined from the measurement, be certain that the air filters are clean. -
Page 43: Motor Sheave Datum Diameters
5370598-BIM-C-0518 EXAMPLE Supply Air Drive Adjustment 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 44: Operation
5370598-BIM-C-0518 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 45: Cooling Operation Errors
5370598-BIM-C-0518 degrees below the current economizer SAT setpoint, the Local LCD on Unit Control Board. highest stage compressor will be de-energized as long as the minimum run time has elapsed. Mobile Access Portal (MAP) Gateway (Portable). Economizer With Single Enthalpy Sensor •... -
Page 46: Electric Heating Sequence Of Operations
5370598-BIM-C-0518 thermostat is calling for cooling, the UCB will operate in the low too soon after its previous run. Additionally, a minimum run time ambient mode. is imposed any time a compressor is energized. Low ambient mode operates the compressors in this manner: The ASCD is initiated on unit start-up and on any compressor 10 minutes on, 5 minutes off. -
Page 47: Gas Heating Sequence Of Operations
5370598-BIM-C-0518 Gas Heating Sequence Of Operations Table 24: Electric Heat Limit Setting When the thermostat calls for the first stage of heating, the low- LIMIT HEATER voltage control circuit from “R” to “W1” is completed. A call for UNIT (TONS) VOLTAGE SWITCH heat passes through the UCB to the Ignition Control Board... -
Page 48: Gas Heating Operation Errors
5370598-BIM-C-0518 If voltage has been sensed at the GV for at least 15 seconds Recycle Operation during the fan on delay for heating and GV voltage or “W1” is When a flame is lost after the flame stabilization period, a recy- lost, the indoor blower is forced on for the length of the fan off cle operation occurs. -
Page 49: Start-Up (Cooling)
5370598-BIM-C-0518 The second stage of the thermostat will energize second Flash Codes stage compressor if needed. The ICB will initiate a flash code associated with errors within the system. Refer to IGNITION CONTROL FLASH CODES Post Start Check List Table 31. Verify proper system pressures for both circuits. -
Page 50: Checking Gas Heat Input
5370598-BIM-C-0518 Check the supply gas pressure. It must be within the limits Using the number of seconds it takes for one revolution of shown on the rating nameplate. Supply pressure should be the dial, calculate the cubic feet of gas consumed per hour. checked with all gas appliances in the building at full fire. -
Page 51: Gas Rate Cubic Feet Per Hour
5370598-BIM-C-0518 Remove plastic cap covering HI and LO pressure Table 27: Gas Rate Cubic Feet Per Hour adjustment screws. Seconds for Size of Test Dial Turn on power to the unit. One Rev. 1/2 cu. ft. 1 cu. ft. Set thermostat to call for second stage heat and start furnace. -
Page 52: Control Board Navigation Components
5370598-BIM-C-0518 Burners/Orifices Inspection/Servicing MATE-N-LOCK HIGH & LOW GAS ADJUSTMENT CONNECTORS Before checking or changing burners, pilot or orifices, CLOSE MAIN MANUAL SHUT-OFF VALVE AND SHUT OFF ALL POWER TO THE UNIT. Open the union fitting just upstream of the unit gas valve INLET and downstream from the main manual shut-off valve in PRESSURE... -
Page 53: Smart Equipment™ Ucb Details
5370598-BIM-C-0518 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 54 5370598-BIM-C-0518 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 55 5370598-BIM-C-0518 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 56 5370598-BIM-C-0518 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 57 5370598-BIM-C-0518 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 24 VAC hot return from refrigerant circuit 2 High allow C1 output.
- Page 58 5370598-BIM-C-0518 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;...
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Page 59: Charging The Unit
5370598-BIM-C-0518 Table 31: Ignition Control Flash Codes Flashes Fault Conditions Check Steady On Control Failure Control Heartbeat Normal Operation Not Applicable Pressure Switch Stuck Closed Pressure Switch Pressure Switch Failed To Close Venter Pressure Switch Vent Blocked Main Limit Limit Switch Open AUX Limit Flame Present With Gas Off First Stage Gas Valve Energized With W1 Off Second Stage Gas Valve... -
Page 60: Zv-A4 Charging Table
5370598-BIM-C-0518 Table 33: ZV-A4 Charging Table Air Flow Outdoor Suction Suction Liquid Liquid Delta T Compressor Indoor Db/Wb Pressure Temp. Pressure Temp. Amps 300 Cfm/Ton 10.5 80/62 11.2 300 Cfm/Ton 10.6 80/67 11.3 10.0 300 Cfm/Ton 10.7 80/72 11.4 300 Cfm/Ton 10.5 75/62 11.2... -
Page 61: Start-Up Sheet
5370598-BIM-C-0518 Start-Up Sheet Johnson Controls Ducted Systems... - Page 62 5370598-BIM-C-0518 Johnson Controls Ducted Systems...
- Page 63 5370598-BIM-C-0518 Johnson Controls Ducted Systems...
- Page 64 5370598-BIM-C-0518 Johnson Controls Ducted Systems...
- Page 65 5370598-BIM-C-0518 Johnson Controls Ducted Systems...
- Page 66 Subject to change without notice. Printed in U.S.A. 5370598-BIM-C-0518 Copyright © 2018 by Johnson Controls, Inc. All rights reserved. Supersedes: 5370598-BIM-B-0717 York International Corporation 5005 York Drive Norman, OK 73069...
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