2
INTRODUCTION ........................................................... 2
Checking Product Received ......................................... 2
Message to the Homeowner ........................................ 2
Before Beginning Installation ...................................... 2
REPLACEMENT PARTS ............................................... 2
Ordering Parts ................................................................ 2
SERVICE PARTS DEPARTMENT ................................... 3
IMPORTANT SAFETY INSTRUCTIONS ....................... 3
Recognize Safety Symbols, Words, and Labels ....... 3
CODES AND REGULATIONS ....................................... 3
General ............................................................................ 3
EPA Regulations ............................................................. 3
National Codes ............................................................... 3
MAJOR COMPONENTS ............................................... 3
General ............................................................................ 3
INSTALLATION ............................................................ 3
Pre-Installation Checkpoints ........................................ 3
Clearance ........................................................................ 4
Location ........................................................................... 4
Outside Slab Installation (Figure 1) ............................ 4
Rooftop Installation (Figure 2) ..................................... 4
DUCTING ...................................................................... 4
Connecting the Return and Supply Flexible Duct .... 5
Plenum Application ....................................................... 5
Filters ............................................................................... 5
PIPING ......................................................................... 5
Condensate Drain .......................................................... 5
WIRING ........................................................................ 6
High Voltage Wiring ...................................................... 6
Low Voltage Wiring ....................................................... 6
Internal Wiring ............................................................... 6
OPERATION ................................................................. 7
Start-Up Procedure and Checklist ............................... 7
Heat Pump Start-Up Procedure ................................... 7
Final System Checks ..................................................... 7
COMPONENTS ............................................................ 8
Contactor ......................................................................... 8
Crankcase Heater .......................................................... 8
Condenser Motor ............................................................ 8
HEAT PUMP REFRIGERANT CIRCUIT ......................... 8
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 ................................................... 9
AIR FLOW MEASUREMENT AND ADJUSTMENT ..... 10
ADJUSTING SPEED TAP FOR INDOOR
BLOWER MOTOR ...................................................... 11
CHECKING CHARGE .................................................. 11
ELECTRIC HEAT INSTALLATION & ADJUSTMENT ... 12
MAINTENANCE .......................................................... 12
Service ........................................................................... 12
Inadequate Air Volume Through Indoor Coil .......... 12
Outside Air Into Return Duct ...................................... 12
Undercharge ................................................................. 12
Poor “Terminating” Sensor Contact ......................... 12
Malfunctioning Reversing Valve ................................ 12
TROUBLESHOOTING CHART ................................... 13
WIRING DIAGRAMS .................................................. 14
WARNING
I
NSTALLATION
AND
REPAIR
OF
THIS
UNIT
SHOULD
BE
PERFORMED
ONLY
BY
INDIVIDUALS
MEETING
THE
REQUIREMENTS
OF
AN
“E
NTRY
L
EVEL
T
ECHNICIAN
”
AS
SPECIFIED
BY
THE
A
IR
-C
ONDITIONING
, H
EATING
,
AND
R
EFRIGERATION
I
NSTITUTE
(AHRI). A
TTEMPTING
TO
INSTALL
OR
REPAIR
THIS
UNIT
WITHOUT
SUCH
BACKGROUND
MAY
RESULT
IN
PRODUCT
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
.
(
AT
A
MINIMUM
)
INTRODUCTION
Checking Product Received
Upon receiving the unit, inspect it for damage from shipment.
Claims for damage, either shipping or concealed, should be
filed immediately with the shipping company. Check the unit
model number, specifications, electrical characteristics and
accessories to determine if they are correct. In the event an
incorrect unit is shipped, it must be returned to the supplier
and must NOT be installed. The manufacturer assumes no
responsibility for installation of incorrectly shipped units.
Message to the Homeowner
These instructions are addressed primarily to the installer;
however, useful maintenance information is included and
should be kept, after installation, for future reference.
Before Beginning Installation
Carefully read all instructions for the installation prior to
installing unit. Make sure each step or procedure is
understood 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 problems that might be encountered as noted in this
manual. Choose a more suitable location if necessary.
REPLACEMENT PARTS
Ordering Parts
When reporting shortages or damages, or ordering repair
parts, give the complete unit model and serial numbers as
stamped on the unit’s nameplate. Replacement parts for
this appliance are available through your contractor or local
distributor. For the location of your nearest distributor,
consult the white business pages, the yellow page section
of the local telephone book or contact:
INDEX
