York YMB SERIES Installation Manual
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York YMB SERIES Installation Manual

R-22 outdoor split-system heat pump
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INSTALLATION MANUAL
R-22
OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS: 13 SEER - YMB / HC3A / HL3A SERIES
1.5 TO 5 TONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATIONS REQUIRING TXV . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Tubing Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CFM Selection Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PSC Air Handler (with Hot Heat Pump) . . . . . . . . . . . . . . . . . . . . . . . . 7
Single Stage PSC Furnace (with Hot Heat Pump) . . . . . . . . . . . . . . . . 8
Defrost Initiate Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SECTION I: GENERAL
The outdoor units are designed to be connected to a matching indoor
coil with sweat connect lines. Sweat connect units are factory charged
with refrigerant for a matching indoor coil plus 15 feet of field supplied
lines.
Matching indoor coils are available with a thermal expansion valve or
an orifice liquid feed sized for the most common usage. The orifice size
and/or refrigerant charge may need to be changed for some indoor-out-
door unit combinations, elevation differences, or total line lengths. Refer
to Application Data covering "General Piping Recommendations and
Refrigerant Line Length" (Part Number 036-61920-001).
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.

TABLE OF CONTENTS

EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
LIST OF FIGURES
PSC Modulating Furnace (with Hot Heat Pump) . . . . . . . . . . . . . . . . .9
Variable Speed Air Handler (with Hot Heat Pump) . . . . . . . . . . . . . . .10
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
LIST OF TABLES
R-22 Saturated Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service, or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer, or service agency.
This product must be installed in strict compliance with the
enclosed installation instructions and any applicable local, state,
and national codes including, but not limited to building, electrical,
and mechanical codes.
ISO 9001
Certified Quality
Management System
LISTED
361813-UIM-A-0208

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  • Page 1: Table Of Contents

    INSTALLATION MANUAL R-22 OUTDOOR SPLIT-SYSTEM HEAT PUMP ISO 9001 Certified Quality Management System MODELS: 13 SEER - YMB / HC3A / HL3A SERIES 1.5 TO 5 TONS LISTED TABLE OF CONTENTS GENERAL ..........1 EVACUATION .

  • Page 2: Unit Installation

    361813-UIM-A-0208 SECTION III: UNIT INSTALLATION INSPECTION LOCATION As soon as a unit is received, it should be inspected for possible dam- age during transit. If damage is evident, the extent of the damage Before starting the installation, select and check the suitability of the should be noted on the carrier’s delivery receipt.

  • Page 3: Tubing Hanger

    361813-UIM-A-0208 GROUND INSTALLATION PIPING CONNECTIONS The unit may be installed at ground level on a solid base that will not The outdoor unit must be connected to the indoor coil using field sup- shift or settle, causing strain on the refrigerant lines and possible leaks. plied refrigerant grade copper tubing that is internally clean and dry.

  • Page 4: Heat Protection

    361813-UIM-A-0208 PRECAUTIONS DURING BRAZING OF LINES All outdoor unit and evaporator coil connections are copper-to-copper and should be brazed with a phosphorous-copper alloy material such as Silfos-5 or equivalent. DO NOT use soft solder. The outdoor units have reusable service valves on both the liquid and vapor connections. The total system refrigerant charge is retained within the outdoor unit during shipping and installation.

  • Page 5: Installations Requiring Txv

    361813-UIM-A-0208 Do not connect manifold gauges unless trouble is suspected. Dry nitrogen should always be supplied through the tubing while it Approximately 3/4 ounce of refrigerant will be lost each time a stan- is being brazed, because the temperature is high enough to cause dard manifold gauge is connected.

  • Page 6: Typical Field Wiring

    361813-UIM-A-0208 FIELD CONNECTIONS POWER WIRING DEHUMIDIFICATION CONTROL Install the proper size weatherproof disconnect switch outdoors A dehumidification control accessory 2HU06700124 may be used with and within sight of the unit. variable speed air handlers or furnaces in high humidity areas. This control works with the variable speed indoor unit to provide cooling at a Remove the screws at the bottom of the corner cover.

  • Page 7: Thermostat Wiring - Single Stage Heat Pump

    361813-UIM-A-0208 For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the Product Catalog Section. HP 9A Single Stage Heat Pump – PSC Air Handler (With Hot Heat Pump Operation) ID MODELS OD MODELS THERMOSTAT...

  • Page 8: Thermostat Wiring - Single Stage Heat Pump

    361813-UIM-A-0208 HP 12A Single Stage Heat Pump – Single Stage PSC Furnace (With Hot Heat Pump Operation) ID MODELS OD MODELS PS(8/9) L*8S F*(8/9)S G*(8/9)S GF(8/9) THERMOSTAT THERMOSTAT THERMOSTAT G*9F *BP21H50124 SINGLE *BN21H00124 SINGLE STAGE *DN22U00124 *DP32H70124 STAGE PSC *DP21H40124 HEAT PUMP FURNACE *DN21H00124...

  • Page 9: Thermostat Wiring - Single Stage Heat Pump - Psc Modulating Furnace (With Hot Heat Pump)

    361813-UIM-A-0208 HP 17A Single Stage Heat Pump – PSC Modulating Furnace (With Hot Heat Pump Operation) ID MODELS OD MODELS FC9M FL9M THERMOSTAT THERMOSTAT THERMOSTAT *BP21H50124 *BN21H00124 SINGLE STAGE *DN22U00124 *DP32H70124 MODULATING *DP21H40124 HEAT PUMP FURNACE *DN21H00124 YORKGUARD VI CONTROL MODULATING FURNACE 24 –...

  • Page 10: Thermostat Wiring - Single Stage Heat Pump - Variable Speed Air Handler (With Hot Heat Pump)

    361813-UIM-A-0208 HP 18A Single Stage Heat Pump – Variable Speed Air Handler (With Hot Heat Pump Operation) ID MODELS OD MODELS THERMOSTAT THERMOSTAT THERMOSTAT *BP21H50124 *BN21H00124 VARIABLE SPEED SINGLE STAGE *DN22U00124 *DP32H70124 *DP21H40124 AIR HANDLER HEAT PUMP *DN21H00124 VARIABLE SPEED YORKGUARD VI AIR HANDLER CONTROL CONTROL...

  • Page 11: Thermostat Wiring - Single Stage Heat Pump - Variable Speed Modulating Furnace (With Hot Heat Pump)

    361813-UIM-A-0208 HP 19A Single Stage Heat Pump – Variable Speed Modulating Furnace (With Hot Heat Pump Operation) ID MODELS OD MODELS FC9C FL9C THERMOSTAT THERMOSTAT THERMOSTAT *BP21H50124 VARIABLE SPEED *BN21H00124 SINGLE STAGE *DN22U00124 *DP32H70124 MODULATING *DP21H40124 HEAT PUMP FURNACE *DN21H00124 VARIABLE SPEED YORKGUARD VI MODULATING...

  • Page 12: Evacuation

    361813-UIM-A-0208 SECTION VI: EVACUATION It will be necessary to evacuate the system to 500 microns or less. If a leak is suspected, leak test with dry nitrogen to locate the leak. Repair the leak and test again. Compressor damage will occur if system is improperly charged. On new system installations, charge system per tabular data sheet for To verify that the system has no leaks, simply close the valve to the vac- the matched coil and follow guidelines in this instruction.

  • Page 13: Defrost Initiate Curves

    361813-UIM-A-0208 SECTION VIII: SYSTEM OPERATION The indoor blower (furnace or air handler) will be operating, dis- charging warm air from the ducts. For more information on the control operation, refer to “Operation The vapor line at the outdoor unit will feel warm to the touch. Instructions - DEMAND DEFROST CONTROL BOARD in this Booklet.

  • Page 14: Wiring Diagram

    SECTION X: WIRING DIAGRAM FIGURE 13: Wiring Diagram Subject to change without notice. Printed in U.S.A. 361813-UIM-A-0208 Copyright © by Unitary Products Group. 2008. All rights reserved. Supersedes: 170761-UIM-D-1106 Unitary 5005 Norman Product York Group Drive 73069...

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