York International ERHQ SERIES Installation Manual

INSTALLATION MANUAL
R-22
OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS:
13 SEER - ERHQ SERIES
2 TO 3-1/2 TONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Typical Installation with Required Clearances . . . . . . . . . . . . . . . . . . . 2
Minimum Suction Line Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Excess Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Insulation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Typical Quick Connect Refrigerant Line Set . . . . . . . . . . . . . . . . . . . . 4
Quick Connect Coupling Connections . . . . . . . . . . . . . . . . . . . . . . . . . 4
TEST Input Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
X/L Output Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

GENERAL

These outdoor heat pump units are designed to be connected to a
matching UPG indoor coil. They are equipped with a solid core filter-
drier located in the discharge line and a high pressure switch.
NOTE: These units are supplied with quick-connect coupling connec-
tions that are factory charged with refrigerant to be matched with the
appropriate pre-charged line set, and UPG indoor coil.
The outdoor unit is designed to be placed near the perimeter of the
home, typically alongside or at the back of the home, remote from the
indoor coil. The outdoor unit has been factory run-tested and all compo-
nents of the system are ready for easy, immediate installation.

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.
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
CERTIFICATION APPLIES ONLY
WHEN THE COMPLETE
SYSTEM IS LISTED

TABLE OF CONTENTS

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
LIST OF FIGURES
Outdoor Unit Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Low Voltage Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Demand Defrost Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Defrost Operation Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
LIST OF TABLES
Defrost Initiate Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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.
INSPECTION
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
should be noted on the carrier's delivery receipt. A separate request for
inspection by the carrier's agent should be made in writing. See Local
Distributor for more information.
LIMITATIONS
The unit should be installed in accordance with all National, State, and
Local Safety Codes and the limitations listed below:
1. Limitations for the indoor unit, coil, and appropriate accessories
must also be observed.
R
P
Certified Quality
Management System
WITH ARI.
LISTED
ISO 9001
157650-UIM-B-1105