GT3BA/T3BA/FT3BA
Outdoor Heat Pump
User’s Information/Installation Instructions
10 SEER High Efficiency Split System
These units have been designed and tested for capacity and efficiency in accordance with A.R.I.
Standards. Split System Heat Pump units are designed for use with a wide variety of fossil fuel
furnaces, electric furnaces, air handlers, and evaporator coil combinations.
These instructions are primarily intended to assist qualified individuals experienced in the proper
installation of heating and/or air conditioning appliances. Some local codes require licensed
installation/service personnel for this type of equipment. Read all instructions carefully before
starting the installation.
USER’S INFORMATION
IMPORTANT
Read this owner information to become familiar with the capabilities and use of your appliance.
Keep this with literature on other appliances where you have easy access to it in the future. If a
problem occurs, check the instructions and follow recommendations given. If these suggestions
don’t eliminate your problem, call your servicing contractor.
Heat Pump Principle of Operation
5
4
2
5
1
2
3
6
1
3
4
6
WINTER HEATING
SUMMER COOLING
1. Outdoor air enters heat pump.
2. Cold, heat-transfer section (outdoor coil)
extracts heat from outdoor air as refrigerant
evaporates from a liquid to a gas.
3. Refrigerant, compressed to a hot gas by
heat pump, carries the heat to the hot heattransfer section (indoor coil).
4. Hot, heat-transfer section (indoor coil)
releases the heat to indoor air as refrigerant
condenses from a gas to a liquid.
5. Air handler circulates the heat throughout
the home.
6. Refrigerant returns to outdoor coil and
evaporates once again to absorb more
heat.
1. Indoor air enters the air handler section.
2. Cold, heat-transfer section (indoor coil)
extracts heat from indoor air as refrigerant
evaporates from a liquid to a cold gas.
3. Refrigerant, drawn to heat pump and
compressed to a hot gas by heat pump,
carries the heat outdoors.
4. Hot, heat-transfer section (outdoor coil)
releases the heat as refrigerant condenses
from a gas to a liquid.
5. Heat pump (outdoor fan) discharges the
heat to outside air.
6. Refrigerant returns to indoor coil and
evaporates once again to absorb more
heat.
2
OPERATING INSTRUCTIONS
TO OPERATE YOUR HEAT PUMP
FOR COOLING —
1. Set the thermostat system switch to COOL
and the thermostat fan switch to AUTO.
(See Figure 1)
2. Set the thermostat temperature to the
desired temperature level by pressing the
WARMER or COOLER button. Please refer
to the separate detailed thermostat user's
manual for complete instructions regarding
thermostat programming. The outdoor unit
and indoor blower will both cycle on and off
to maintain the indoor temperature at the
desired cooling level.
NOTE: If the thermostat temperature level
is re-adjusted, or the thermostat system
switch is repositioned, the outdoor unit
may not start immediately. The outdoor
unit contains a protective timer circuit which
holds the unit off for approximately five
minutes following a previous operation, or
the interruption of the main electrical power.
TO OPERATE YOUR HEAT PUMP
FOR HEATING —
1. Set the thermostat system switch to HEAT
and the thermostat fan switch to AUTO.
(See Figure 1)
2. Set the thermostat temperature to the
desired temperature level by pressing the
WARMER or COOLER button. Please refer
to the separate detailed thermostat user's
manual for complete instructions regarding
thermostat programming. The outdoor unit
and indoor blower will both cycle on and off
to maintain the indoor temperature at the
desired heating level.
NOTE: If the thermostat temperature level
is re-adjusted, or the thermostat system
switch is repositioned, the outdoor unit
may not start immediately. The outdoor
unit contains a protective timer circuit which
holds the unit off for approximately five
minutes following a previous operation, or
the interruption of the main electrical power.
Emergency Heat:
The thermostat includes a system switch
position termed EM. HT. This is a back-up
heating mode to be used only if there is a
suspected problem with the outdoor unit.
With the system switch set to EM. HT. the
outdoor unit will be locked off, and
supplemental heat (typically electric
resistance heating) will be used as a
source of heat. Sustained use of electric
resistance heat in place of the heat pump
will result in an increase in electric utility
costs.
Defrost:
During cold weather heating operation,
the outdoor unit will develop a coating of
Figure 1. Typical Thermostat
3
snow and ice on the heat transfer coil. This
is normal, and the unit will periodically
defrost itself. During the defrost cycle, the
outdoor fan will stop, and the compressor
will continue to run and heat the outdoor
coil, causing the snow and ice to melt. After
the snow and ice have melted, some steam
may rise from the outdoor unit as the warm
coil causes some melted frost to evaporate.
TO OPERATE YOUR HEAT PUMP
FOR AUTOMATIC COOLING AND
HEATING
a temperature unbalance due to a sun load,
cooking, or fireplace operation.
TO MAINTAIN YOUR HEAT PUMP —
! CAUTION:
Be certain the electrical power to the
outdoor unit and the furnace/air handler
is disconnected before doing the
following recommended maintenance.
1.
1. Set the thermostat system switch to AUTO
and the thermostat fan switch to AUTO.
(See Figure 1)
Note: Thermostats will vary. Some models
will not include the AUTO mode, and others
will have the AUTO in place of the HEAT
and COOL, and some will include all three.
2. Set the thermostat temperature to the
desired heating and cooling temperature
level(s). The outdoor unit and the indoor
blower will then cycle on and off in either
the heating or cooling mode of operation as
required to automatically maintain the
indoor temperature within the desired limits.
TO SHUT OFF YOUR HEAT PUMP —
Set the thermostat system switch to OFF and the
thermostat fan switch to AUTO. (See Figure 1)
The system will not operate, regardless of the
thermostat temperature selector(s) setting.
TO OPERATE THE INDOOR
BLOWER CONTINUOUSLY —
Set the thermostat fan switch to ON (See Figure
1). The indoor blower will start immediately, and
will run continually until the fan switch is reset to
AUTO.
The continuous indoor blower operation can be
obtained with the thermostat system switch set
in any position, including OFF.
The continuous indoor blower operation is
typically used to circulate the indoor air to equalize
4
Regularly:
a. Clean or replace the indoor air filter at the
start of each heating and cooling season,
and when an accumulation of dust and dirt
is visible on the air filter. Inspect the filter
monthly.
b. Remove any leaves and grass clippings
from the coil in the outdoor unit, being
careful not to damage the aluminum fins.
c. Check for any obstruction such as twigs,
sticks, etc.
! CAUTION:
Do not over-oil, or oil motors not factoryequipped with oil tubes. The compressor
is hermetically “sealed” and does not
require lubrication.
2. Before Calling a Service Technician, Be
Certain:
a. The unit thermostat is properly set —
see “To Operate Your Heat Pump for
Cooling” and “To Operate Your Heat
Pump for Heating.”
b. The unit disconnect fuses are in good
condition, and the electrical power to the
unit is turned on.
Read Your Warranty
Please read the separate warranty document
completely. It contains valuable information
about your system.
GENERAL INFORMATION
Read the following instructions completely before
performing the installation.
Outdoor Unit Section — Each outdoor unit is
shipped with a refrigerant charge adequate to
operate the outdoor section with an indoor
matching coil or air handler. Units with braze
connections include the proper amount of
refrigerant for an additional 15 ft. of refrigerant
lines the same size as the valve fittings.
NOTE: DO NOT USE ANY PORTION OF THE
CHARGE FOR PURGING OR LEAK TESTING.
Matching coils and air handlers may be shipped
with a small holding charge to pressurize them to
keep out contaminants. To release the pressure,
read the indoor section installation instructions
carefully.
Liquid and Suction Lines — Fully annealed,
refrigerant grade copper tubing should be used
when installing the system. Refrigerant suction
line tubing should be fully insulated.
Field Connections for Electrical Power Supply
— All wiring must comply with current provisions
of the “National Electrical Code” (ANSI C1.) and
with applicable local codes having jurisdiction.
The minimum size of electrical conductors and
circuit protection must be in compliance with
information listed on the outdoor unit data label.
SAFETY CONSIDERATIONS
Pressures within the System — Split system
heat pump equipment contains liquid and
gaseous refrigerant under pressure. Installation
and servicing of this equipment should be
accomplished by qualified, trained personnel
thoroughly familiar with this type of equipment.
Under no circumstances should the Homeowner
attempt to install and/or service the equipment.
Labels, Tags, Precautions — When working
with this equipment, follow all precautions in the
literature, on tags, and on labels provided with
the equipment. Read and thoroughly understand
the instructions provided with the equipment
prior to performing the installation and operational
checkout of the equipment.
Brazing Operations — Installation of
equipment may require brazing operations.
Safety codes must be complied with. Safety
equipment (e.g.; safety glasses, work gloves,
fire extinguisher, etc.) must be used when
performing brazing operations.
! WARNING:
Ensure all electrical power to the unit is
off prior to installing or servicing the
equipment. Failure to do so may cause
personal injury or death.
SITE PREPARATION
Unpacking Equipment — Remove the
cardboard carton and User's Manual from the
equipment. Take care to not damage tubing
connections when removing from the carton.
Inspect for Damage — Inspect the equipment
for damage prior to installing the equipment at
the job site. Ensure coil fins are straight and,
if necessary, comb fins to remove flattened and
bent fins.
Preferred Location of the Outdoor Unit at the
Job Site — Conduct a survey of the job site to
determine the optimum location for mounting the
outdoor unit. Overhead obstructions, poorly
ventilated areas, and areas subject to
accumulation of debris should be avoided. The
outdoor unit should be installed no closer than 18
inches from the outside walls of the facility and in
an area free from overhead obstructions to
ensure unrestricted airflow through the outdoor
unit.
Facility Prerequisites — Electrical power
supplied must be adequate for proper operation
of the equipment. The system must be wired
and provided with circuit protection in accordance
with local building codes and the National
Electrical Code.
INSTALLING THE OUTDOOR UNIT
Slab Mount — The site selected for a slab
mount installation requires a stable foundation
and one not subject to erosion. The slab should
be level and anchored (if necessary) prior to
placing the equipment on the slab.
5
Cantilever Mount — The cantilever mount
should be designed with adequate safety factor
to support the weight of the equipment, and for
loads subjected to the mount during operation.
Installed equipment should be adequately
secured to the cantilever mount and levelled
prior to operation of the equipment.
Optional Equipment — Optional equipment
(e.g.: filter/driers, liquid line solenoid valves,
etc.) should be installed in strict accordance
with the manufacturer’s installation instructions.
Roof Mount — The method of mounting should
be designed so as not to overload roof structures
nor transmit noise to the interior of the structure.
Refrigerant and electrical line should be routed
through suitably waterproofed openings to
prevent water leaking into the structure.
1. Remove protective caps from the unit and
the refrigerant line couplings.
INSTALLING THE INDOOR UNIT
3. Using refrigerant oil, lightly lubricate the
diaphragm, seal and threads on the male
unit coupling.
The indoor section should be installed before
proceeding with routing of refrigerant piping.
Consult the Installation Instructions of the indoor
unit (i.e.: air handler, furnace, etc.) for details
regarding installation.
CONNECTING REFRIGERANT
TUBING BETWEEN THE INDOOR
AND OUTDOOR UNIT
General — Once outdoor and indoor unit
placement has been determined, route
refrigerant tubing between the equipment in
accordance with sound installation practices.
Refrigerant tubing should be routed in a manner
that minimizes the length of tubing and the
number of bends in the tubing. Refrigerant tubing
should be supported in a manner that the tubing
will not vibrate or abrade during system operation.
Tubing should be kept clean of foreign debris
during installation and installation of a liquid line
filter drier is recommended if cleanliness or
adequacy of system evacuation is unknown or
compromised. Every effort should be made by
the installer to ensure that the field installed,
refrigerant containing components of the system
have been installed in accordance with these
instructions and sound installation practices so
as to insure reliable system operation and
longevity.
The maximum recommended interconnecting
refrigerant line length is 75 feet, and the vertical
elevation difference between the indoor and
outdoor sections should not exceed 20 feet.
Consult long line application guide for installations
in excess of these limits.
6
For refrigerant line sets that incorporate single
shot couplings only:
2. Carefully wipe all coupling threads and seals
with a clean cloth to remove any dust or
foreign material which could contaminate
the refrigerant system.
4. Connect couplings as follows:
Note: Start with indoor section first.
a. HOLD REFRIGERANT LINE IN
STRAIGHT POSITION TO UNIT
COUPLING AND THREAD COUPLING
HALVES TOGETHER BY HAND TO
INSURE PROPER CONNECTION.
Hold body of the line coupling hex with
wrench, while slowly tightening the
union nut until a definite resistance
(bottoming out) is felt.
b. Mark the position of union nut (match
lines on the line coupling and the unit
bulk head), and then tighten the coupling
an additional 1/4 turn to insure leak-proof
connection. (See Table of Torque Values
for recommended torque values if a
torque wrench is used.)
TABLE OF TORQUE VALUES
Coupling Size
3/8" (10 mm)
Liquid Line Coupling
Torque
10 - 12 ft. lbs.
(Metric: 14-16 N-m)
3/4" (19 mm) or
7/8" (22 mm)
Vapor Line Coupling
34 - 45 ft. lbs.
(Metric: 47-61 N-m)
Service Valve Cap
5 - 6 ft. lbs.
(Metric: 7 - 8 N-m)
Figure 2. Single Phase Wiring Diagram
7
RVS
CC
LLS If
Equipped
DFT
C
T1
T2
C
Y
O
W2
R
4
DFT
1
R Outdoor
Fan Motor
S
C
S Compressor
R
1
3
Control
Logic
DF2
2
T2
Compressor
Contacts
S
Outdoor
Fan Motor
DF1
O
O
W2
R
R
C
Y
T2
DF1 DF2
Black
Black
Reversing Valve
Solenoid
DFT
Low Voltage E
Terminals
See Note 6
C
Y
O
W2
R
E
TEST
High Voltage
F
Blue
Orange
Black
Contactor
Yellow
Red
Black
L2
T2
L1 L2 Grd
L1
T1
3
3
Yellow
11
22
Grounding
Screw
Start
Capacitor
(Optional)
Yellow
Black
710235A
(Single Phase) Field Supply
S
Compressor
C
R
Yellow or
Yellow Black
Black or
Black White
Black
Orange
Black
CCH (If Equipped)
Red or
Red Black
Field Wiring
Factory Wiring:
Low Voltage
Legend
Red
Terminal
or Gray Wire
Defrost
Thermostat
Red
Gray
ODT
(Select Models Only)
H
T1
C
Dual
Capacitor
Blue
T2
DFT
LLS
If Equipped
C
Orange
Defrost Control Board
Yellow
Note: For field added limits,
remove yellow jumper wire
and attach between Y and
T1 on defrostcontrolboard.
Black
R
Start
Relay
(Optional)
Single Phase
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
3. Ne convient pas aux installations de plus de 150 volt a la terre.
Defrost Board Operation:
Defrost Control Board
1 Closing during defrost. Rating: 1 Amp. Max.
CC - Contactor Coil
2 Opens during defrost. Rating: 2 HP at 230 Vac Max.
CCH - Crankcase Heater (If Equipped)
3 Closed when "Y" is on. Open when "Y" is off.
DFT - Defrost Thermostat
Provides "off" delay time of 5 min. when "Y" opens.
LLS - Liquid Line Solenoid (If Equipped)
4 With DFT closed and "Y" closed, compressor run time is accumulated.
RVS - Reversing Valve Solenoid
Opening of DFT during defrost or interval period resets the interval to 0. ODT - Outdoor Thermostat (Select Models Only)
Low Voltage
Terminals
C
Y
O
W2
R
ODT
Dual Capacitor
F
C
H
CCH (If Equipped)
L2
Disconnect all power before servicing.
For supply connections use copper conductors only.
Not suitable on systems that exceed 150 volts to ground.
For replacement wires use conductors suitable for 105 C.
For ampacities and overcurrent protection, see unit rating plate.
Connect to 24 vac/40va/class 2 circuit. See furnace/air handler
instructions for control circuit and optional relay/transformer kits.
E
T1
L1
1.
2.
3.
4.
5.
6.
NOTES:
Split System Heat Pump (Outdoor Section)
Figure 3. Three Phase Wiring Diagram
C
Y
O
W2
R
E
Closes during defrost.
Rating: 1 Amp. Max.
Opens during defrost.
Rating: 2 HP. at 230 Vac Max.
Closed when “Y” is on.
Open when “Y” is off.
Provides “off” delay time
of 5 min. when “Y” opens.
2
3
3
CONTROL
LOGIC
1
2
Defrost Control Board
1
DF1
Ground on location provided inside compressor
terminal box.
T1
T2
C
Y
O
4
DF2
5
RVS
W2
R
DFT
Outdoor Fan
Motor
C
T1
Compressor
Motor
With DFT closed and “Y” closed, compressor run time is
accumulated. Opening of DFT during defrost or interval
period resets the interval to 0.
CC
DFT
R
S
T3
T2
4
Capacitor
1
Defrost Board Operation:
Low Voltage
Terminals
T3
T2
5
O
E
R
W2
Black
T1
T2
C
Y
O
O
W2
R
R
DFT
E
High Voltage
Black
DF1 DF2
Reversing Valve
Solenoid
Legend
See Note 6
Low Voltage
Terminals
C
Y
T2
DFT
TEST
Defrost Control Board
DFT
RVS
CC
CCH
ODT
Blue
Capacitor
Orange
L2
L1
Red
Red
T2
T1
Yellow
T3
T1
Compressor
T2
L3
T3
5
- Defrost Thermostat
- Reversing Valve Solenoid
- Contactor Coil
- Crankcase Heater ( If Equipped )
- Outdoor Thermostat (Select Models Only
Note: For field added limits,
remove yellow jumper wire
and attach between Y and
T1 on defrost control board.
Field Wiring
Factory Wiring
Low Voltage
T1
Outdoor Fan S
Motor
C
Contactor
Blue
CCH (If Equipped)
L1
L2
L3
Black or Black White
R
Black
Red or Red Black
Black
CCH
(If Equipped)
Defrost
Thermostat
Grounding
Screw
703948C
(3 Phase)
Field Supply
L1 L2 L3 Grd
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre
3. Ne convient pas aux installations de plus de 150 volt a la terre.
Three Phase
Yellow or
Yellow Black
Split System Heat Pump (Outdoor Section)
Black
NOTES:
1. Disconnect all power before servicing.
2. For supply connections use copper conductors only.
3. Not suitable on systems that exceed 150 volts to ground.
4. For replacement wires use conductors suitable for 105 deg. C
5. For supply wire ampacities and overcurrent protection, see unit data label.
6. Connect to 24 vac/40va/class 2 circuit. See furnace/air handler installation
instructions for control circuit and optional Relay/Transformer Kits.
Black
8
Outdoor Unit Connections — The outdoor
unit requires both power and control circuit
electrical connections. Refer to the unit wiring
diagram/schematic for identification and location
of outdoor unit field wiring interfaces.
ELECTRICAL CONNECTIONS
! WARNING:
Turn off all electrical power at the main
circuit box before wiring electrical power
to the outdoor unit. Failure to comply
may cause severe personnel injury or
death.
Control Circuit Wiring — The outdoor unit is
designed to operate from a 24 VAC Class II
control circuit. Control circuit wiring must comply
with the current provisions of the “National
Electrical Code” (ANSI C1.) and with applicable
local codes having jurisdiction.
Wiring Diagram/Schematic — A wiring
diagram/schematic is located on the inside cover
of the electrical box of the outdoor unit and on
the opposite page of these instructions. The
installer should become familiar with the wiring
diagram/schematic before making any electrical
connections to the outdoor unit. (See Figure 3).
Thermostat connections should be made in
accordance with the instructions supplied with
the thermostat, and with the instructions supplied
with the indoor equipment. A typical residential
installation with a heat pump thermostat and air
handler are shown below.
Thermostat
G R W 2C E O Y
Green
G
Red
R
Brown
W
NOTE: Jumper
between W2 and E is
required when no OD
T-Stat is used.
R
W2
Orange W 2
For 2-Stage
Heater
Kits
Grey
C O Y
C
Air Handler
Heat Pump OD
Section
Typical Heat Pump with Standard Air Handler
9
A typical installation with a heat pump thermostat, air handler, and heat pump with an outdoor
thermostat.
Thermostat
G R W 2C E O Y
Green
G
Red
R
E
R
White
W
W2
C O Y
Grey
C
Air Handler
Heat Pump OD
Section
Typical Heat Pump with
Outdoor Thermostat and Air Handler
10
Electrical Power Wiring — Electrical power
wiring must comply with the current provisions
of the “National Electrical Code” (ANSI C1.)
and with applicable local codes having
jurisdiction. Use of rain tight conduit is
recommended. Electrical conductors shall
have minimum circuit ampacity in compliance
with the outdoor unit rating label. The facility
shall employ electrical circuit protection at a
current rating no greater than that indicated
on the outdoor unit rating label. Refer to the
unit wiring diagram for connection details.
Minimum Circuit Ampacity — Electrical wiring
to the equipment must be compatible and in
COPPER WIRE SIZE — AWG
(1% Voltage Drop)
Supply Wire Length-Feet Supply Circuit
200
150 100
50
Ampacity
6
8
10
14
15
4
6
8
12
20
4
6
8
10
25
4
4
6
10
30
3
4
6
8
35
3
4
6
8
40
2
3
4
6
45
2
3
4
6
50
Wire Size based on N.E.C. for 60° type copper
conductors.
compliance with the minimum circuit ampacity
listed on the outdoor unit data label.
Maximum Fuse/Circuit Breaker Size — Circuit
protection for the outdoor unit must be compatible
with the maximum fuse/circuit breaker size listed
on the outdoor unit data label.
Disconnect Switch — An electrically compatible
disconnect switch must be within line of sight of
the outdoor unit. This switch shall be capable of
electrically de-energizing the outdoor unit.
Optional Equipment — Optional equipment
requiring connection to the power or control
circuits must be wired in strict accordance with
current provisions of the “National Electrical
Code” (ANSI C1.), with applicable local codes
having jurisdiction, and the installation
instructions provided with the equipment.
Optional Equipment (e.g.: liquid line solenoid
valves, hard start kits, low suction pressure
cutout switch kit, high pressure cutout switch kit,
refrigerant compressor crankcase heater, etc.)
should be installed in strict accordance with the
manufacturer’s installation instructions.
STARTUP AND CHECKOUT
! WARNING:
Ensure electrical power to the unit is off
prior to performing the following steps.
Failure to do so may cause personal
injury or death.
Air Filters — Ensure air filters are clean and in
place prior to operating the equipment.
Thermostat — Set the room thermostat function
switch to OFF, fan switch to AUTO, and adjust
the temperature setpoint to its highest setting.
Prior to applying electrical power to the outdoor
unit, ensure that the unit has been properly and
securely grounded, and that power supply
connections have been made at both the facility
power interface and outdoor unit.
Outdoor Unit — Ensure the outdoor coil and
top of the unit are free from obstructions and
debris, and all equipment access/control panels
are in place.
Using extreme caution, apply power to the unit
and inspect the wiring for evidence of open,
shorted, and/or improperly wired circuits.
Functional Checkout:
! CAUTION:
If equipped with a compressor
crankcase heater, wait 24 hours prior to
performing a function checkout to allow
for heating of the compressor
crankcase. Failure to comply may result
in damage and could cause premature
failure of the system.
11
Indoor Blower — Set the thermostat function
switch to COOLING and the fan switch to ON.
Verify that the indoor blower is operating and
that airflow is not restricted. Set the fan switch
back to AUTO.
Cooling — Gradually lower the thermostat
temperature setpoint below the actual room
temperature and observe that the outdoor unit
and indoor blower energize. Feel the air being
circulated by the indoor blower and verify that it
is cooler than ambient temperature. Listen for
any unusual noises. If present, locate and
determine the source of the noise and correct as
necessary.
Short Cycle Protection — With the system
operating in COOLING mode, note the setpoint
temperature setting of the thermostat, and
gradually raise the setpoint temperature until
the outdoor unit and indoor blower de-energize.
Immediately lower the setpoint temperature of
the thermostat to its original setting and verify
that the indoor blower is energized and that the
outdoor unit remains de-energized. Verify that,
after approximately 5 minutes, the outdoor unit
energizes and that the temperature of the air
supplied to the facility is cooler than ambient
temperature.
Heating — Lower the thermostat setpoint
temperature to the lowest obtainable setting
and set the thermostat function switch to
HEATING. The indoor blower and outdoor unit
should stop running. After a minimum of five
minutes, increase the setpoint temperature of
the thermostat to the maximum setting. Verify
that the outdoor unit and indoor blower have
energized. Feel the air being circulated by the
indoor blower and verify that it is warmer than
ambient temperature. Listen for any unusual
noises. If present, locate and determine the
source of the noise and correct as necessary.
OUTDOOR THERMOSTAT (if supplied)
The outdoor thermostat prevents the electrical
auxiliary heat (if used) from operating when the
outdoor temperature is above 40°F.
Defrost Cycle Timer — The defrost cycle timer
controls the time interval of the hot gas defrost
after the defrost sensor closes. It is located in the
lower left corner of the defrost control board.
12
Three interval settings are available: 30 minutes,
60 minutes, and 90 minutes. Time setting
selection is dependent on the climate where the
unit is being installed.
Example 1. Dry climate of Southern
Arizona. A 90 minute setting is
recommended.
Example 2. Moist climate of Seattle,
Washington. A 30 minute setting is
recommended.
To set the cycle timer, place the timing pin on the
defrost control board to the desired time interval
post.
Note: All units are shipped from the factory with
the default time setting of 30 minutes. Maximum
heating performance can be achieved by setting
the time to 90 minutes.
Defrost Test Procedure
1.
2.
Terminals “R”-”C” must have 18-30v present
between them in order for time delay and
defrost sequences to be initiated.
With compressor running in heat mode,
first jump the “T2”-”DFT” test pins. This will
indicate to board that defrost T-stat is
closed. Defrost T-stat closes at 32°, opens
at 68°.
3.
Next jump the “Test” pin to “C” on terminal
strip. This will initiate defrost test in 5, 10 or
15 seconds (This is determined by 30, 60
or 90 minutes defrost pin settings). Factory
setting will be 30 minutes.
4.
When the reversing valve shifts to the
defrost mode, quickly remove jumper from
“Test”-”C”. If the jumper is not removed
within a 5 second period, the defrost test
will terminate. Unit will continue to stay in
defrost mode Until :
A) Board recognizes that defrost
sensor has reached 68° and
opened or
B) “T2”-”DFT” jumper is removed or
C) 10 minutes have elapsed (board
override)
If the above steps will not initiate a defrost,
replace the defrost board.
Anti Short Cycle Timer Test
The 5 minute time delay feature can be bypassed
or shortened to 1 second by jumping the “Test”
to “C” terminal.
Note: If jumper is left on the “Test” to “common”
pins permanently, the defrost cycle will become
inoperable.
Optional Equipment — A functional checkout
should be performed in accordance with the
checkout procedures supplied with the
equipment.
NOTE: The following Refrigerant Charging
Charts are applicable to listed assemblies of
equipment and at listed airflows for the indoor
coil. Assemblies of indoor coils and outdoor
units not listed are not recommended.
Adjustment of Refrigerant Charge:
! CAUTION:
Split system heat pump equipment
contains liquid and gaseous refrigerant
under pressure. Adjustment of
refrigerant charge should only be
attempted by qualified, trained
personnel thoroughly familiar with the
equipment. Under no circumstances
should the homeowner attempt to install
and/or service this equipment. Failure
to comply with this warning could result
in equipment damage, personal injury,
or death.
10 SEER SPLIT SYSTEM HEAT PUMP ORIFICE USAGE
10 SEER SPLIT SYSTEM HEAT PUMP ORIFICE
Restrictor Bore Size (in.)
Model
1 Ton (KB)
1-1/2 Ton (KA)
1-1/2 Ton (KB)
2 Ton
2-1/2 Ton
3 Ton
3-1/2 Ton
4 Ton
5 Ton
Indoor
.040
.053
.050
.060
.067
.071
.077
.082
.093
Outdoor
.035
.041
.044
.049
.055
.059
.063
.065
.071
System Charge
R-22 (oz.)
69
69
69
70
79
95
103
134
198
13
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION
* Note: All pressures are listed in psig. and all temperatures in degrees F.
- Shaded Boxes indicate flooded conditions
- Rated Design Values. Suction Pressure will be lower than design
value if indoor air flow, entering dry bulb, or entering wet bulb
temperatures are lower than design.
- Discharge temperatures greater than charted values indicate a
refrigerant undercharge.
S.P. = Suction Pressure
L.P. = Liquid Pressure
D.T. = Discharge Temperature
1
Ton (KB)
S. P.
70
72
74
76
78
80
82
84
86
88
70
75
L. P.
D. T.
153
155
157
156
156
143
148
153
193
220
80
L. P.
D. T.
168
170
171
172
173
146
151
156
168
177
L. P.
D. T.
183
184
186
187
188
150
154
159
166
172
OUTDOOR TEMPERATURE (°F)
85
90
L. P.
D. T.
L. P.
D. T.
198
199
201
202
203
204
153
158
162
167
171
176
212
214
215
217
218
219
157
161
165
169
173
176
90
92
94
96
1 1/2
Ton (KA)
S.P.
71
73
75
77
79
81
83
85
87
89
91
93
95
97
14
70
75
L.P.
D.T.
165
168
171
174
177
145
148
150
153
157
80
L.P.
D.T.
180
183
186
189
193
149
151
154
157
161
L.P.
D.T.
196
199
201
205
208
153
155
158
161
165
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
211
214
217
220
223
226
156
159
162
165
168
171
226
229
232
235
238
242
160
164
167
169
172
174
95
100
105
L. P.
D. T.
L. P.
D. T.
L. P.
D. T.
227
229
230
231
233
160
164
169
172
175
242
243
245
246
164
168
172
175
257
258
259
168
171
175
234
178
247
249
177
180
261
262
264
178
180
183
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
241
244
247
250
254
164
168
171
173
175
257
260
262
266
168
172
175
177
272
275
278
173
176
179
257
178
269
272
179
181
281
284
288
180
182
184
95
100
105
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION (Cont.)
1 1/2
Ton (KB)
S. P.
73
75
77
79
81
83
85
87
89
91
70
75
L. P.
D. T.
172
174
175
176
176
132
137
142
163
190
80
L. P.
D. T.
188
189
191
192
193
138
143
148
156
166
L. P.
D. T.
203
205
207
208
209
144
149
153
159
165
OUTDOOR TEMPERATURE (°F)
85
90
L. P.
D. T.
L. P.
D. T.
219
221
222
223
225
226
150
154
159
164
168
173
235
236
238
239
240
242
156
160
165
168
172
176
93
95
97
99
2
Ton
S.P.
68
70
72
74
76
78
80
82
84
86
70
75
L.P.
D.T.
171
173
176
179
182
158
161
163
166
170
80
L.P.
D.T.
186
189
192
195
198
160
163
166
169
172
L.P.
D.T.
202
205
208
211
214
163
166
169
172
175
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
218
221
224
227
230
233
166
169
172
175
178
180
234
236
239
243
246
249
169
172
175
177
180
183
88
90
92
94
2 1/2
Ton
S.P.
68
70
72
74
76
78
80
82
84
86
88
90
92
94
70
75
L.P.
D.T.
161
164
167
170
173
149
152
155
158
161
80
L.P.
D.T.
182
185
188
191
194
154
157
160
163
167
L.P.
D.T.
203
206
209
212
215
159
162
165
168
171
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
224
227
230
233
236
240
165
168
171
174
176
179
245
248
251
254
257
261
170
173
176
179
181
184
95
100
105
L. P.
D. T.
L. P.
D. T.
L. P.
D. T.
251
252
253
255
256
162
166
170
173
176
266
268
269
270
168
172
176
178
282
283
285
174
178
181
257
180
272
273
181
184
286
287
289
184
186
189
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
249
252
255
258
262
171
175
178
180
182
265
268
271
274
174
178
181
183
281
284
287
177
181
184
265
185
278
281
185
187
290
293
297
185
187
188
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
266
269
272
275
278
175
178
182
184
186
287
290
293
296
180
184
187
189
308
311
314
186
189
192
282
188
299
303
191
193
317
320
324
194
196
197
95
100
95
105
100
105
15
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION (Cont.)
3
Ton
S.P.
64
66
68
70
72
74
76
78
80
82
70
75
L.P.
D.T.
173
176
179
182
186
175
178
180
184
188
80
L.P.
D.T.
189
192
195
198
201
176
179
181
185
188
L.P.
D.T.
204
207
210
214
217
177
180
182
186
189
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
220
223
226
229
233
236
178
181
184
186
189
192
236
239
242
245
248
252
178
182
185
187
190
192
84
86
88
90
3 1/2
Ton
S.P.
63
65
67
69
71
73
75
77
79
81
70
75
L.P.
D.T.
168
171
174
176
180
147
150
152
154
158
80
L.P.
D.T.
185
188
191
193
197
151
154
157
159
163
L.P.
D.T.
202
205
208
211
214
156
159
162
165
168
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
219
222
225
228
231
234
161
164
167
170
173
175
236
239
242
245
248
252
165
169
172
174
177
180
83
85
87
89
4
Ton
S.P.
63
65
67
69
71
73
75
77
79
81
83
85
87
89
16
70
75
L.P.
D.T.
160
163
166
168
172
151
154
157
158
162
80
L.P.
D.T.
178
180
183
186
189
154
157
160
162
166
L.P.
D.T.
195
198
201
203
207
158
161
164
167
170
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
212
215
218
221
224
227
161
164
167
170
173
176
229
232
235
238
241
245
165
168
171
174
177
179
95
100
105
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
251
254
257
261
264
179
183
186
188
190
267
270
273
276
180
184
187
189
283
286
289
181
185
188
267
193
280
283
191
193
292
295
298
190
192
193
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
253
256
259
262
265
170
174
177
179
181
270
273
276
279
175
179
182
183
287
290
293
180
184
187
269
184
282
286
185
187
296
300
303
187
189
191
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
246
249
252
255
259
169
172
175
177
180
264
267
269
273
173
176
179
180
281
284
287
176
180
183
262
182
276
279
182
184
290
294
297
183
185
187
95
100
95
105
100
105
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION (Cont.)
5
Ton
S.P.
70
61
63
65
67
69
71
73
75
77
79
75
L.P.
D.T.
166
169
172
174
177
156
159
161
162
166
80
L.P.
D.T.
184
187
189
192
195
161
164
167
169
172
L.P.
D.T.
201
204
207
210
213
166
169
172
175
178
OUTDOOR TEMPERATURE (°F)
85
90
L.P.
D.T.
L.P.
D.T.
219
222
225
227
231
234
171
175
178
181
183
186
236
239
242
245
249
252
177
180
183
186
189
191
81
83
85
87
95
100
105
L.P.
D.T.
L.P.
D.T.
L.P.
D.T.
254
257
260
263
266
183
186
189
191
193
272
275
278
281
188
191
195
196
289
292
295
194
197
201
270
196
284
288
198
200
299
302
305
200
202
204
REFRIGERANT CHARGING CHARTS FOR
HEATING MODE OF OPERATION
1 TON (KB)
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
15
16
17
18
19
20
21
109
116
123
130
137
144
151
80
78
76
74
72
70
68
24
25
26
27
28
29
30
126
132
138
144
150
155
161
93
91
89
87
85
83
81
33
34
35
36
37
38
39
143
147
152
157
162
167
171
106
104
102
100
98
96
94
1-1/2 TON (KA)
42
43
44
45
46
47
48
159
163
167
170
174
178
181
119
117
115
113
111
109
107
52
53
54
55
56
57
58
164
171
178
185
192
199
206
135
132
129
126
123
120
118
62
63
64
65
66
67
68
181
188
195
202
209
216
223
152
148
143
139
134
130
125
72
73
74
75
76
77
78
198
205
212
219
226
233
240
170
164
158
151
145
139
133
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
15
16
17
18
108
115
122
129
115
113
111
109
23
24
25
26
127
133
139
145
120
118
116
114
31
32
33
34
146
151
156
161
126
124
122
120
39
40
41
42
166
169
173
177
132
130
128
126
48
49
50
51
176
183
190
197
147
144
141
139
58
59
60
61
199
206
213
220
171
167
162
158
68
69
70
71
223
230
237
244
196
190
184
177
19
20
21
136 107
143 105
150 103
27
28
29
151 112
157 110
162 108
35
36
37
165 118
170 116
175 114
43
44
45
180 124
184 122
188 120
52
53
54
204 136
211 133
218 130
62
63
64
227 153
234 149
241 144
72
73
74
251 171
258 165
265 159
17
REFRIGERANT CHARGING CHARTS FOR
HEATING MODE OF OPERATION (Cont.)
1-1/2 TON (KB)
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
12
13
14
15
16
17
18
115
122
129
136
143
150
157
88
86
84
82
80
78
76
21
22
23
24
25
26
27
129 102
135 100
141 98
147 96
153 94
159 92
164 90
29
30
31
32
33
34
35
144
149
153
158
163
168
172
116
114
112
110
108
106
104
2 TON
38
39
40
41
42
43
44
158
162
166
169
173
177
180
130
128
126
124
122
120
118
47
48
49
50
51
52
53
159
166
173
180
187
194
201
145
143
140
137
134
131
128
55
56
57
58
59
60
61
170
177
184
191
198
205
212
162
158
153
149
144
140
135
64
65
66
67
68
69
70
181
188
195
202
209
216
223
179
173
167
161
155
148
142
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
13
14
15
16
108
115
122
129
123
121
119
117
21
22
23
24
127
133
139
145
128
126
124
122
29
30
31
32
147
152
157
162
133
131
129
127
37
38
39
40
167
171
174
178
137
135
133
131
46
47
48
49
174
181
188
195
151
148
145
143
54
55
56
57
193
200
207
214
174
169
165
160
63
64
65
66
211
218
225
232
17
18
19
136 115
143 113
150 111
25
26
27
151 120
157 118
163 116
33
34
35
166 125
171 123
176 121
41
42
43
182 129
185 127
189 125
50
51
52
202 140
209 137
216 134
58
59
60
221 156
228 151
235 147
67
68
69
239 171
246 165
253 159
2-1/2 TON
196
190
184
178
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
13
14
15
16
108
115
122
129
123
121
119
117
21
22
23
24
127
133
139
145
128
126
124
122
30
31
32
33
146
151
156
160
133
131
129
127
38
39
40
41
165
169
173
176
139
137
135
133
47
48
49
50
171
178
185
192
153
151
148
145
55
56
57
58
186
193
200
207
177
173
168
164
63
64
65
66
201
208
215
222
17
18
19
136 115
143 113
150 111
25
26
27
150 120
156 118
162 116
34
35
36
165 125
170 123
175 121
42
43
44
180 131
184 129
187 127
51
52
53
199 142
206 139
213 136
59
60
61
214 159
221 155
228 150
67
68
69
229 176
236 170
243 164
3 TON
201
195
188
182
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
13
14
15
16
114
121
128
135
133
131
129
127
20
21
22
23
131
137
143
149
137
135
133
131
27
28
29
30
148
153
158
163
140
138
136
134
34
35
36
37
166
169
173
177
144
142
140
138
43
44
45
46
175
182
189
196
156
153
151
148
55
56
57
58
200
207
214
221
178
173
169
164
67
68
69
70
226
233
240
247
17
18
19
142 125
149 123
156 121
24
25
26
155 129
161 127
166 125
31
32
33
167 132
172 130
177 128
38
39
40
180 136
184 134
188 132
47
48
49
203 145
210 142
217 139
59
60
61
228 160
235 155
242 151
71
72
73
254 175
261 169
268 163
18
200
193
187
181
REFRIGERANT CHARGING CHARTS FOR
HEATING MODE OF OPERATION (Cont.)
3-1/2 TON
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
9
10
11
12
119
126
133
140
138
136
134
132
16
17
18
19
136
141
147
153
139
137
135
133
23
24
25
26
152
157
162
167
140
138
136
134
30
31
32
33
169
173
177
180
140
138
136
134
38
39
40
41
176
183
190
197
156
153
150
148
49
50
51
52
196
203
210
217
186
182
177
173
59
60
61
62
216
223
230
237
13
14
15
147 130
154 128
161 126
20
21
22
159 131
165 129
171 127
27
28
29
172 132
176 130
181 128
34
35
36
184 132
188 130
191 128
42
43
44
204 145
211 142
218 139
53
54
55
224 168
231 164
238 159
63
64
65
244 192
251 186
258 180
4 TON
217
210
204
198
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
15
16
17
18
125
132
139
146
128
126
124
122
19
20
21
22
137
143
149
155
130
128
126
124
23
24
25
26
150
154
159
164
131
129
127
125
28
29
30
31
162
166
169
173
133
131
129
127
38
39
40
41
175
182
189
196
143
140
137
134
54
55
56
57
213
220
227
234
161
157
152
148
70
71
72
73
251
258
265
272
19
20
21
153 120
160 118
167 116
23
24
25
161 122
166 120
172 118
27
28
29
169 123
173 121
178 119
32
33
34
177 125
180 123
184 121
42
43
44
203 131
210 129
217 126
58
59
60
241 143
248 139
255 134
74
75
76
279 155
286 148
293 142
5 TON
179
173
167
161
OUTDOOR TEMPERATURE (DEG. F)
0
10
20
30
40
50
60
S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T. S.P. L.P. D.T.
8
9
10
11
116
123
130
137
134
132
130
128
16
17
18
19
140
146
151
157
139
137
135
133
25
26
27
28
163
168
173
178
144
142
140
138
33
34
35
36
187
190
194
198
149
147
145
143
41
42
43
44
199
206
213
220
159
156
153
151
50
51
52
53
222
229
236
243
175
170
166
162
59
60
61
62
246
253
260
267
191
185
179
173
12
13
14
144 126
151 124
158 122
20
21
22
163 131
169 129
175 127
29
30
31
182 136
187 134
192 132
37
38
39
201 141
205 139
209 137
45
46
47
227 148
234 145
241 142
54
55
56
250 157
257 153
264 148
63
64
65
274 166
281 160
288 154
19
INSTALLER: PLEASE
LEAVE THESE
INSTALLATION
INSTRUCTIONS WITH
THE HOMEOWNER.
¢708105}¤
708105C
708105C (Replaces 708105B)
Specifications and illustrations
subject to change without notice
and without incurring obligations.
Printed in U.S.A. (12/04)
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