2
Filters ........................................................ 6
PIPING ........................................................ 6
Condensate Drain ......................................... 6
WIRING ....................................................... 6
High Voltage Wiring ...................................... 7
Low Voltage Wiring ....................................... 7
Internal Wiring: ........................................... 7
OPERATION .................................................. 7
Start-Up Procedure and Checklist .................... 7
Heat Pump Start-Up Procedure ....................... 8
Final System Checks ...................................... 8
COMPONENTS ...............................................
9
Contactor.................................................... 9
Crankcase Heater ......................................... 9
Condenser Motor .......................................... 9
Compressor ................................................. 9
Contactor Relay ............................................ 9
Defrost Control ............................................ 9
Outdoor Thermostat ...................................... 9
Reversing Valve Coil ...................................... 9
Indoor Blower Motor ...................................... 9
Blower Interlock Relay ................................... 9
EXPLANATION AND GUIDANCE (HEAT PUMP) .......... 9
DEFROST CONTROL ....................................... 10
SUGGESTED FIELD TESTINGN/TROUBLESHOOTING .. 10
AIR FLOW MEASUREMENT AND ADJUSTMENT ......... 10
ADJUSTING SPEED TAP FOR INDOOR
BLOWER MOTOR ........................................... 10
EXPANSION VALVE (TXV) SYSTEM
SINGLE SPEED APPLICATION
(GPH1624-42) ..........................................
11
TWO SPEED APPLICATION (GPH1648 / GPC1560) .. 12
ELECTRIC HEAT INSTALLATION & ADJUSTMENT ...... 12
MAINTENANCE ............................................. 13
SERVICE ..................................................... 13
Inadequate Air Volume Through Indoor Coil .......13
Outside Air Into Return Duct ..........................13
Undercharge ..............................................13
Poor “Terminating” Sensor Contact .................13
Malfunctioning Reversing Valve ......................13
BLOWER PERFORMANCE GP* 15/16 SEER ....... 14-15
TROUBLESHOOTING CHART.............................. 16
START-UP CHECKLIST ..................................... 18
O
NLY
PERSONNEL
THAT
HAVE
BEEN
TRAINED
TO
INSTALL
,
ADJUST
,
SERVICE
OR
REPAIR
(
HEREINAFTER
, “
SERVICE
”)
THE
EQUIPMENT
IN
THIS
MANUAL
SHOULD
SERVICE
THE
EQUIPMENT
. I
N
ADDITION
,
IN
JURISDICTIONS
THAT
REQUIRE
ONE
OR
MORE
LICENSES
TO
SERVICE
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
,
ONLY
LICENSED
PERSONNEL
SHOULD
SERVICE
THE
EQUIPMENT
. I
MPROPER
INSTALLATION
,
ADJUSTMENT
,
SERVICING
OR
REPAIR
OF
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
,
OR
ATTEMPTING
TO
INSTALL
,
ADJUST
,
SERVICE
OR
REPAIR
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
WITHOUT
PROPER
TRAINING
MAY
RESULT
IN
PRODUCT
DAMAGE
,
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
.
\
TO
THE INSTALLER
Carefully read all instructions for the installation prior to
installing unit. Make sure each step or procedure is under-
stood and any special considerations are taken into account
before starting installation. Assemble all tools, hardware
and supplies needed to complete the installation. Some items
may need to be purchased locally. After deciding where to
install unit, closely look the location over - both the inside
and outside of home. Note any potential obstacles or prob-
lems that might be encountered as noted in this manual.
Choose a more suitable location if necessary.
IMPORTANT NOTE:
If a crankcase heater is used, the unit
should be energized 24 hours prior to compressor start up to
ensure crankcase heater has sufficiently warmed the com-
pressor. Compressor damage may occur if this step is not
followed.
Before using this manual, check the serial plate for proper
model identification.
The installation and servicing of this equipment must be
performed by qualified, experienced technicians only.
TO THE INSTALLER ........................................... 2
SHIPPING INSPECTION .................................... 2
Checking Product Received ............................ 2
Message to the Homeowner ............................. 3
REPLACEMENT PARTS ...................................... 3
Ordering Parts ............................................. 3
IMPORTANT SAFETY INSTRUCTIONS .................... 3
Recognize Safety Symbols, Words, and Labels .... 3
CODES AND REGULATIONS ................................ 3
General ...................................................... 3
EPA Regulations ............................................ 4
National Codes ............................................. 4
MAJOR COMPONENTS...................................... 4
General ...................................................... 4
INSTALLATION ............................................... 4
Pre-Installation Checkpoints ........................... 4
Clearance ................................................... 4
Location ..................................................... 4
Outside Slab Installation ................................ 4
Rooftop Installation ....................................... 5
DUCTING ..................................................... 5
Connecting the Return and Supply Flexible Duct
in Manufactured or
Modular Housing Application ........................... 5
Plenum Application ....................................... 6
