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R-410A
XP SERIES W/SMART EQUIPMENT™
15/20 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 14
Field Installed Electric Heat Accessories . . . . . . . . . . . . . 23
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Single Enthalpy Changeover. . . . . . . . . . . . . . . . . . . . . . . 23
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . 23
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Free Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1 XP180/240 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . 6
2 XP180/240 Unit Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 XP180/240 Unit Accessory Weights . . . . . . . . . . . . . . . . . 9
4 XP180/240 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . 12
5 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 XP180/240 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . 21
8 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . 23
9 Smart Equipment™ Economizer Board Details . . . . . . . 25
10 Altitude/Temperature Correction Factors . . . . . . . . . . . . 30
1 XP240 Component Location . . . . . . . . . . . . . . . . . . . . . . 6
2 XP240 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
3 XP240 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
4 XP180 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
5 XP180 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
6 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 XP240 Unit Dimensions Front View . . . . . . . . . . . . . . . . . 9
8 XP180 Unit Dimensions Front View . . . . . . . . . . . . . . . . 10
9 XP180/240 Unit Dimensions Rear View . . . . . . . . . . . . 11
10 XP180/240 Unit Dimensions Rain Hood . . . . . . . . . . . . 12
11 XP180/240 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12 Fixed Outdoor Air Damper . . . . . . . . . . . . . . . . . . . . . . . 13
TABLE OF CONTENTS
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Damper Set Point Adjustment . . . . . . . . . . . . . . . . . . . . . . 28
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . 36
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . 36
Electric Heating Sequence Of Operations. . . . . . . . . . . . . 37
Defrost Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Interval between Defrosts. . . . . . . . . . . . . . . . . . . . . . . . 38
Forced Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . 38
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Normal Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Blower Shaft Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Outdoor Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
LIST OF TABLES
11 Air Flow Performance - Side Duct Application . . . . . . . . 32
12 Air Flow Performance - Bottom Duct Application . . . . . . 33
13 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
14 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . 34
15 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . 34
16 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . 35
17 Limit Control Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
18 Electric Heat Anticipator Setpoint . . . . . . . . . . . . . . . . . . 39
19 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . 42
LIST OF FIGURES
13 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
15 Typical Field Wiring 24 Volt Thermostat . . . . . . . . . . . . 16
16 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . 25
17 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
18 Altitude/Temperature Correction Factors . . . . . . . . . . . . 30
For All Unit Tonnages . . . . . . . . . . . . . . . . . . . . . . . . . . 34
20 XP180 (15 Ton) Charging Chart . . . . . . . . . . . . . . . . . . 40
21 XP240 (20 Ton) Charging Chart . . . . . . . . . . . . . . . . . . 40
22 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5168273-YIM-I-1021
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Related Manuals for York XP Series
Summary of Contents for York XP Series
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Page 1: Table Of Contents
R-410A XP SERIES W/SMART EQUIPMENT™ 15/20 Ton 60 Hertz TABLE OF CONTENTS General ......... . 2 Operation . -
Page 2: General
5168273-YIM-I-1021 General ® YORK Model XP units are single package Heat Pump with electric heaters (Field Installed Accessory Only). Designed for Before performing service or maintenance operations on outdoor installation on a rooftop or slab. unit, turn off main power switch to unit. Electrical shock could cause personal injury. - Page 3 • Smart Equipment™ Control Quick Start Guide - 1136326 operation of the product could cause personal injury or property damage. Renewal Parts ® Contact your local York parts distribution center for authorized replacement parts. Approvals This system uses R-410A Refrigerant which operates at higher pressures than R-22.
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Page 4: Model Number Nomenclature
5168273-YIM-I-1021 Nomenclature ® 15 & 20 Ton York Model Number Nomenclature X P 180 C A 2 A 1 Product Generation Product Category 1 = First Generation X = HP, Single Pkg., R-410A Cabinet Options A = Std Cabinet Product Identifier B = HFD (Hinged FLTR/Toolless DR) C = HCD (Hinged &... -
Page 5: Installation
5168273-YIM-I-1021 Installation Local building codes, and Local electric utility requirements Installation Safety Information In Canada: Read these instructions before continuing this appliance Canadian Electrical Code, CSA C22.1 installation. This is an outdoor combination heating and cooling Installation Codes, CSA - B149.1. unit. -
Page 6: Xp180/240 Unit Limitations
5168273-YIM-I-1021 Smart Equipment™ Control Board Slide In/ Plug In Internal Economizer 110 Volt Convenience (Optional) Outlet (“Powered” or “Non-Powered” Optional) 2” Disposable Filters (4” Filters Optional) Disconnect Location (Optional Disconnect Switch) Bottom Power and Control Wiring Entry Electric Heater Location (Electric Heat Offered as a Field-Installed Accessory Only) Belt Drive Blower Motor... -
Page 7: Location
If a unit is to be installed on a roof curb other than a should be at least 6 inches greater than the unit base rails. ® York roof curb, gasketing must be applied to all Do not tie slab to the building foundation. -
Page 8: Xp180/240 Unit Weight
5168273-YIM-I-1021 Figure 2: XP240 Unit 4 Point Load Weight Figure 3: XP240 Unit 6 Point Load Weight Figure 4: XP180 Unit 4 Point Load Weight Figure 5: XP180 Unit 6 Point Load Weight FRONT FRONT FRONT LEFT Figure 6: Center of Gravity Table 2: XP180/240 Unit Weight Size Weight (lbs.) -
Page 9: Utilities Entry
5168273-YIM-I-1021 Table 3: XP180/240 Unit Accessory Weights Weight (lbs.) Unit Accessory Shipping Operating Economizer Power Exhaust Electric Heat Double Wall Motorized Damper Barometric Damper Econ./Motorized Damper Rain Hood Econ./Power Exhaust Rain Hood Wood Skid Roof Curb 1. Weight given is for the maximum heater size available (72KW). -
Page 10: Xp180 Unit Dimensions Front View
5168273-YIM-I-1021 ECONOMIZER / MOTORIZED DAMPER, FIXED OUTDOOR INTAKE AIR AND FIELD-SUPPLIED POWER EXHAUST RAIN HOODS DISCONNECT SWITCH (See detail "Y") BLOWER LOCATION COMPRESSOR ACCESS ACCESS (See detail "X") BLOWER MOTOR ACCESS OPTIONAL COIL BLOWER GUARD KIT COMPARTMENT ACCESS (Auxiliary) - / " DOT PLUG (For pressure Drop Reading) -
Page 11: Xp180/240 Unit Dimensions Rear View
5168273-YIM-I-1021 EVAPORATOR SECTION DOT PLUG (For pressure 40-3/8" drop reading) FILTER ACCESS SUPPLY RETURN COMPRESSOR OUTDOOR ACCESS 40-1/2" SUPPLY AIR 18-5/8" ACCESS 1" NPT FEMALE 27-3/4" COND. DRAIN Dimensions listed are for side CONNECTION 5-1/8" RETURN AIR duct flange openings; see ACCESS OUTDOOR AIR Field Accessories for Side... -
Page 12: Xp180/240 Unit Clearances
5168273-YIM-I-1021 Economizer Motorized Power Exhaust Damper Rain Hood Rain Hood Supply Air (on Outdoor (on Return Compartment Air Compartment) Economizer/Motorized Damper Air Compartment) and Power Exhaust Rain Hood Fixed Outdoor Air Intake Hood (Located on 36-5/8” Return Air 1” Condensate Compartment) Drain (Must be 16-1/8”... -
Page 13: Ductwork
5168273-YIM-I-1021 Ductwork hood flanges as a template, drill 9/64 inch diameter (#26 drill) holes into the ductwork and secure with the screws provided. 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. -
Page 14: Compressors
A disconnect must be utilized for these units. Factory installed to protect roofing. disconnects are available. If installing a disconnect (field ® supplied or York International supplied accessory), refer to Procedures which risk oil leakage include, but are not limited to, Figure 1 for the recommended mounting location. -
Page 15: Control Wire Sizes
5168273-YIM-I-1021 Refer to Figures 14 and 15 for typical field wiring and to the Power Wiring Detail appropriate unit wiring diagram mounted inside control doors Units are factory wired for the voltage shown on the unit for control circuit and power wiring information. nameplate. -
Page 16: Typical Field Wiring 24 Volt Thermostat
5168273-YIM-I-1021 R~Occ Jumper: CONTROL TERMINAL Smart Equipment Control boards come from the THERMOSTAT BLOCK TERMINALS factory with a jumper wire between R and OCC terminals on the thermostat terminal strip. Failure to remove this jumper will place the unit into the Occupied mode no matter what the occupancy demand is from the thermostat or EMS system. -
Page 17: Electrical Data
5168273-YIM-I-1021 Table 6: Electrical Data XP180/240 - Standard Drive Without Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Electric Heat Motors Blower Conv Size Breaker (each) (Field Installed Accessory Only) Volt (each) Motor Outlet (Tons) (Amps) Size (Amps) RLA LRA MCC Model Stages Amps... - Page 18 5168273-YIM-I-1021 XP180/240 - Standard Drive With Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Electric Heat Motors Blower Conv Size Breaker (each) (Field Installed Accessory Only) Volt (each) Motor Outlet (Tons) (Amps) Size (Amps) RLA LRA MCC Model Stages Amps NONE 13.5 37.5...
- Page 19 5168273-YIM-I-1021 XP180/240 - High Static Drive Without Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Electric Heat Motors Blower Conv Size Breaker (each) (Field Installed Accessory Only) Volt (each) Motor Outlet (Tons) (Amps) Size (Amps) RLA LRA MCC Model Stages Amps NONE...
- Page 20 5168273-YIM-I-1021 XP180/240 - High Static Drive With Powered Convenience Outlet OD Fan Supply Max Fuse Compressors Electric Heat Motors Blower Conv Size Breaker (each) (Field Installed Accessory Only) Volt (each) Motor Outlet (Tons) (Amps) Size (Amps) RLA LRA MCC Model Stages Amps NONE...
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Page 21: Xp180/240 Physical Data
5168273-YIM-I-1021 Table 7: XP180/240 Physical Data Models Component XP180 XP240 Nominal Tonnage AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (Btu/hr) 181,600 261,400 AHRI net capacity (Btu/hr) 176,000 240,000 10.6 IEER with Constant Volume 11.8 IEER with Intellispeed 13.2 Nominal CFM 5500 8000... - Page 22 5168273-YIM-I-1021 Table 7: XP180/240 Physical Data (Continued) Models Component XP180 XP240 Nominal Tonnage BELT DRIVE EVAP FAN DATA Quantity Fan Size (Inch) 18 X 15 18 X 15 Type Centrifugal Centrifugal Motor Sheave 1VP60 1VP60 1VP60 1VP60 Blower Sheave BK120 BK100 BK110 BK090...
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Page 23: Field Installed Electric Heat Accessories
5168273-YIM-I-1021 Field Installed Electric Heat Accessories Speed Fan" set points, in relationship to the VFD output percentage. On a constant volume single speed supply fan These field-installed heater accessories can be wired for single system both set-points should be set to the same value. point power supply. -
Page 24: Power Exhaust
5168273-YIM-I-1021 Thermostat If at any time the economizer output goes above the minimum 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 +/- 0.5°F (default 55°F). -
Page 25: Smart Equipment™ Economizer Board Details
5168273-YIM-I-1021 Figure 16: SE-ECO1001-0 Economizer Controller Table 9: 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 26 5168273-YIM-I-1021 Table 9: 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 27 5168273-YIM-I-1021 Table 9: 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 28: Field Installed Bas-Ready Economizer Power Exhaust Damper Set Point Adjustment
5168273-YIM-I-1021 Table 9: Smart Equipment™ Economizer Board Details (Continued) Board Cover Description Function & Comments Label Label 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. -
Page 29: Blower Rotation
5168273-YIM-I-1021 Phasing ® York Model XP units are properly phased at the factory. Check for proper compressor rotation. If the blower or compressors rotate in the wrong direction at start-up, the electrical Procedure for adjusting belt tension: connection to the unit is misphased. Change the phasing of the 1. -
Page 30: Altitude/Temperature Correction Factors
5168273-YIM-I-1021 Table 10: Altitude/Temperature Correction Factors Altitude (Ft.) Temp. 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 1.060 1.022 0.986 0.950 0.916 0.882 0.849 0.818 0.788 0.758 0.729 1.039 1.002 0.966 0.931 0.898 0.864 0.832 0.802 0.772 0.743 0.715 1.019 0.982... -
Page 31: Drive Selection
5168273-YIM-I-1021 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 32: Air Flow Performance - Side Duct Application
5168273-YIM-I-1021 Table 11: Air Flow Performance - Side Duct Application XP180 (15 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 RPM BHP RPM BHP Standard 5 HP &... -
Page 33: Air Flow Performance - Bottom Duct Application
5168273-YIM-I-1021 Table 12: Air Flow Performance - Bottom Duct Application XP180 (15 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 RPM BHP RPM BHP Standard 5 HP &... -
Page 34: Air Balance
5168273-YIM-I-1021 Table 13: RPM Selection 5 Turns 4 Turns 3 Turns 2 Turns 1 Turns Fully Size Motor Blower 6 Turns Model (Tons) Sheave Sheave Open Open Open Open Open Open Closed 1VP60 BK120 (15) 1VP60 BK100 1000 1035 1070 1VP60 BK110 (20) -
Page 35: Additional Static Resistance
5168273-YIM-I-1021 NOTE: De-energize the compressors before taking any test For the XP180 Model, high speed drive accessory 1LD0413 measurements to assure a dry indoor coil. (containing a smaller blower pulley and a shorter belt) is available for applications requiring the supply air blower to Supply Air Drive Adjustment produce higher CFM's and/or higher static pressures. -
Page 36: Sequence Of Operation
5168273-YIM-I-1021 Sequence Of Operation Additionally, the indoor blower has a delay of 10 seconds. Cooling Operation Errors Cooling Sequence Of Operation For XP units, a "Y1" call for the first stage of cooling is passed Each cooling system is monitored for operation outside of the to the Unit Control Board (UCB) which then determines whether intended parameters. -
Page 37: Safety Controls
5168273-YIM-I-1021 Evaporator Low Limit The unit control board monitors the temperature limit switch of electric heat units. During cooling operation, if the Evaporator Low Limit Sensor (EC1, 2) (Located on the Suction Line at the Evaporator Coil.) Compressor Protection detects a temperature below 26 Deg. F (default), the UCB will In addition to the external pressure switches, the compressors de-energize the associated compressor, initiate the ASCD, and, also have inherent (internal) protection. -
Page 38: Defrost Termination
5168273-YIM-I-1021 on the UCB. Contacts RW1 open, assuring the reversing valve Electric Heat Operation Errors cannot be energized, except during defrost. Contacts RW1 Temperature Limit close. If its ASCD timer is satisfied the UCB will energize compressor #1 contactor M1. After a two second delay, it then If the UCB senses zero volts from the high temperature limit, energizes compressor #2 contactor M2. -
Page 39: Start-Up (Cooling)
5168273-YIM-I-1021 Check blower drive belt tension. Table 18: Electric Heat Anticipator Setpoint Check the unit supply air (CFM). Setting, Amps Heater Voltage Measure evaporator fan motor's amp draw. 0.29 Set the room thermostat fan switch to off. 0.29 0.29 208/230-3-60 0.29 0.58 Turn unit electrical power off. -
Page 40: Charging The Unit
5168273-YIM-I-1021 Charging The Unit 15-Ton Charging Chart Cooling mode Outdoor Temp (ºF) 115º 105º 95º 85º 75º 65º Suction Pressure (psi) 1. Make sure that both condenser fans are running when charging. One fan may switch off at lower ambient temperatures making the chart above inaccurate. 2. -
Page 41: Maintenance
5168273-YIM-I-1021 Maintenance Normal Maintenance Perform all maintenance operations on the blower motor with electric power disconnected from the unit. Do not attempt to lubricate bearings with the unit in operation. Prior to any of the following maintenance procedures, On an annual basis, check the motor for accumulations of dust, shut off all electric power to the unit to prevent personal etc. -
Page 42: Smart Equipment™ Ucb Details
5168273-YIM-I-1021 THERMOSTAT WIRED HERE SD-24 Figure 22: Unit Control Board Table 19: 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 43 5168273-YIM-I-1021 Table 19: 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 44 5168273-YIM-I-1021 Table 19: 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 45 5168273-YIM-I-1021 Table 19: 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 46 5168273-YIM-I-1021 Table 19: 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.
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Page 47: Cable For Fc Buses And Sa Buses In Order Of Preference
5168273-YIM-I-1021 Table 19: 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 48: Start-Up Sheet
5168273-YIM-I-1021 Start-Up Sheet Johnson Controls Ducted Systems... - Page 49 5168273-YIM-I-1021 Johnson Controls Ducted Systems...
- Page 50 5168273-YIM-I-1021 Johnson Controls Ducted Systems...
- Page 51 5168273-YIM-I-1021 Johnson Controls Ducted Systems...
- Page 52 5168273-YIM-I-1021 Johnson Controls Ducted Systems...
- Page 53 Subject to change without notice. Printed in U.S.A. 5168273-YIM-I-1021 Copyright © 2021 by Johnson Controls, Inc. All rights reserved. Supersedes: 5168273-YIM-H-0620 York International Corporation 5005 York Drive Norman, OK 73069...
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