Nordyne 13 SEER User manual

Outdoor Heat Pump
13 SEER High Efficiency Split System
User’s Information/Installation Instructions
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.
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
USER’S INFORMATION
5
4
1
2
3
6
54
321
6
SUMMER COOLING
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)
releasestheheatasrefrigerantcondenses
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.
WINTER HEATING
1. Outdoor air enters heat pump.
2. Cold, heat-transfer section (outdoor coil)
extractsheatfromoutdoorairasrefrigerant
evaporates from a liquid to a gas.
3. Refrigerant, compressed to a hot gas by
heatpump,carriestheheattothehotheat-
transfer section (indoor coil).
4. Hot, heat-transfer section (indoor coil)
releasestheheattoindoorairasrefrigerant
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.

2

3
and indoor blower will both cycle on and off
to maintain the indoor temperature at the
desired heating level.
NOTE:Ifthethermostattemperaturelevelis
re-adjusted,orthethermostatsystemswitch
is repositioned, the outdoor unit may not
start immediately.Theoutdoorunit contains
aprotectivetimercircuitwhichholdstheunit
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
suspectedproblemwiththeoutdoorunit.With
thesystemswitchsettoEM.HT.theoutdoor
unitwillbelockedoff,andsupplementalheat
(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 snow
and ice on the heat transfer coil. This is
normal, and the unit will periodically defrost
itself.Duringthedefrostcycle,theoutdoorfan
will stop, and the compressor will continue
torunand heattheoutdoorcoil,causingthe
snowandice to melt.Afterthesnowand ice
havemelted,some steammayrisefromthe
outdoor unit as the warm coil causes some
melted frost to evaporate.
Figure 1.TypicalThermostat
OPERATING INSTRUCTIONS
TO OPERATEYOUR HEAT PUMP
FOR COOLING —
1. Set the thermostat system switch to COOL
andthethermostatfanswitchtoAUTO.(See
Figure 1)
2. Setthethermostattemperaturetothedesired
temperature level using the temperature
selector. 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
theindoortemperatureatthedesiredcooling
level.
NOTE: Ifthethermostattemperaturelevelis
re-adjusted,orthethermostatsystemswitch
is repositioned, the outdoor unit may not
start immediately.The outdoor unit contains
aprotective timer circuitwhichholdstheunit
offforapproximatelyfiveminutesfollowinga
previous operation, or the interruption of the
main electrical power.
TO OPERATEYOUR HEAT PUMP
FOR HEATING —
1. Set the thermostat system switch to HEAT
andthethermostatfanswitchtoAUTO.(See
Figure 1)
2. Set the thermostat temperature to the
desired temperature level using the
temperature selector. Please refer to
the separate detailed thermostat user’s
manual for complete instructions regarding
thermostat programming. The outdoor unit
TEMPERATU
SENSOR
FAN
SWITCH
SYSTEM
MODE

4
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.
d. Certain models have external panels
fabricated from a premium grade of
stainless steel designed to inhibit
corrosion. For such units, if the unit is
located in a coastal region or other area
subjected to high concentrations of salt,
then the unit should be hosed off after
stormsandmonthlyotherwisetomaintain
its new appearance.
CAUTION:
Do not over-oil, or oil motors not
factory-equipped 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
“ToOperateYourHeatPumpfor 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.
ReadYour Warranty
Please read the separate warranty document
completely. It contains valuable information
about your system.
GENERAL INFORMATION
Readthefollowinginstructionscompletelybefore
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.
TO OPERATEYOUR HEAT PUMP
FOR AUTOMATIC COOLING AND
HEATING—
1. Set the thermostat system switch to AUTO
andthethermostatfanswitchtoAUTO.(See
Figure 1)
Note: Thermostats will vary. Some models
will not include the AUTO mode, and others
willhavetheAUTOinplaceofthe HEATand
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
requiredtoautomaticallymaintaintheindoor
temperature within the desired limits.
TO SHUT OFFYOUR HEAT PUMP—
SetthethermostatsystemswitchtoOFFandthe
thermostat fan switch to AUTO.(See Figure 1)
The system will not operate, regardless of the
thermostat temperature selector(s) setting.
TO OPERATETHE INDOOR
BLOWER CONTINUOUSLY—
SetthethermostatfanswitchtoON(SeeFigure
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 a temperature unbalance due to a sun
load, cooking, or fireplace operation.
TO MAINTAINYOUR 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. Regularly:
a. Cleanorreplacetheindoor airfilteratthe
startofeachheatingandcoolingseason,

5
NOTE: DO NOT USE ANY PORTION OF
THE CHARGE FOR PURGING OR LEAK
TESTING.
Matching coils and air handlers may be shipped
withasmallholdingchargetopressurizethemto
keepoutcontaminants.Toreleasethepressure,
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/NFPA 70) and with applicable local
codes having jurisdiction.The minimum size of
electricalconductorsandcircuit protectionmust
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
theequipment.Readandthoroughlyunderstand
theinstructionsprovidedwiththeequipmentprior
to performing the installation and operational
checkout of the equipment.
BrazingOperations—Installationofequipment
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
isoffprior to installingorservicing 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.
PreferredLocationoftheOutdoorUnitatthe
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
suppliedmustbeadequateforproperoperation
oftheequipment.Thesystemmustbewiredand
provided with circuit protection in accordance
with local building codes and the National
Electrical Code.
INSTALLINGTHE OUTDOOR UNIT
SlabMount—Thesiteselectedforaslabmount
installationrequiresastablefoundationandone
not subject to erosion.The slab should be level
and anchored (if necessary) prior to placing the
equipment on the slab.
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.
RoofMount—The methodofmountingshould
bedesignedsoasnottooverloadroofstructures
nortransmitnoisetotheinteriorofthestructure.
Refrigerant and electrical line should be routed
through suitably waterproofed openings to
prevent water leaking into the structure.

6
be installed in strict accordance with the
manufacturer’s installation instructions.
ELECTRICAL CONNECTIONS
WARNING:
Turnoffallelectricalpoweratthemain
circuit box before wiring electrical
power to the outdoor unit. Failure to
comply may cause severe personnel
injury or death.
Wiring Diagram/Schematic — A wiring
diagram/schematicislocatedontheinsidecover
of the electrical box of the outdoor unit. The
installer should become familiar with the wiring
diagram/schematicbeforemakinganyelectrical
connections to the outdoor unit.
Outdoor Unit Connections — The outdoor
unit requires both power and control circuit
electrical connections. Refer to the unit wiring
diagram/schematicforidentificationandlocation
of outdoor unit field wiring interfaces.
Control Circuit Wiring — The outdoor unit is
designedtooperatefroma24VACClassIIcontrol
circuit. Control circuit wiring must comply with
the current provisions of the“National Electrical
Code”(ANSI/NFPA70)andwithapplicablelocal
codes having jurisdiction.
Thermostat connections should be made in
accordance with the instructions supplied with
thethermostat,andwiththeinstructionssupplied
with the indoor equipment. A typical residential
installation with a heat pump thermostat and air
handler are shown below.
Electrical Power Wiring — Electrical power
wiring must comply with the current provisions
of the “National Electrical Code” (ANSI/
NFPA 70) and with applicable local codes
having jurisdiction. Use of rain tight conduit is
recommended.Electricalconductorsshallhave
minimumcircuitampacityincompliancewiththe
outdoorunitratinglabel.Thefacilityshallemploy
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.
MinimumCircuitAmpacity—Electricalwiring
to the equipment mustbecompatibleandin
compliance with the minimum circuit ampacity
listed on the outdoor unit data label.
MaximumFuse/CircuitBreakerSize—Circuit
protectionfortheoutdoorunitmustbecompatible
INSTALLINGTHE INDOOR UNIT
The indoor section should be installed before
proceeding with routing of refrigerant piping.
ConsulttheInstallationInstructionsoftheindoor
unit (i.e.: air handler, furnace, etc.) for details
regarding installation.
CONNECTING REFRIGERANT
TUBING BETWEENTHE INDOOR
AND OUTDOOR UNIT
General — Once outdoor and indoor unit
placementhasbeendetermined,routerefrigerant
tubingbetweentheequipmentinaccordancewith
sound installation practices. Refrigerant tubing
shouldberoutedinamannerthatminimizesthe
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
bekeptcleanofforeigndebrisduringinstallation
and installation of a liquid line filter drier is
recommended if cleanliness or adequacy of
systemevacuationisunknownorcompromised.
Every effort should be made by the installer
to ensure that the field installed, refrigerant
containingcomponentsofthesystemhavebeen
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.
Filter Dryer Installation — A filter dryer is
provided with PS series models only and must
be installed in the liquid line of the system.If the
installation replaces a system with a filter dryer
already present in the liquid line, the filter dryer
must be replaced with the one supplied with the
unit. The filter dryer must be installed in strict
accordance with the manufacturer’s installation
instructions.
For all other series models, installing a filter
dryer is optional.However, it is good installation
practice to install a filter dryer when replacing
the evaporator and/or condenser of a system.
Wheninstalling,thefilterdryermustbeinstalled
in strict accordance with the manufacturer’s
installation instructions.
Optional Equipment — Optional equipment
(e.g.: liquid line solenoid valves, etc.) should

7
withthemaximumfuse/circuitbreakersizelisted
on the outdoor unit data label.
DisconnectSwitch—Anelectricallycompatible
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/NFPA 70), 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
cutoutswitchkit,highpressurecutoutswitchkit,
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—Settheroomthermostatfunction
switchtoOFF,fanswitchtoAUTO,andadjustthe
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,andallequipmentaccess/controlpanels
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.
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.
Positive Temperature Coefficient Resistor
(PTCR) — (select models) A PTCR is factory
installed and located on the control panel of the
outdoor unit.The PTCR is a soft start device for
use with reciprocating compressors. If a hard
start kit is needed on this model the soft start
(PTCR) must be removed first.
Low-Pressure Switch — A low-pressure
switch is factory-installed in select models only.
If provided, this switch is located in the suction
line internal to the outdoor unit. The switch is
designed to protect the compressor from a loss
of charge. Under normal conditions, the switch
is closed. If the suction pressure falls below 5
psig, then the switch will open and de-energize
the outdoor unit. The switch will close again
once the suction pressure increases above 20
psig. Please note that the switch interrupts the
thermostat inputs to the unit. Thus, when the
switch opens and then closes, there will be a 5
minute short cycling delay before the outdoor
unit will energize.
Wire Size based on N.E.C. for 60° type copper
conductors.
COPPERWIRE SIZE — AWG
(1%Voltage Drop)
SupplyWire Length-Feet Supply Circuit
200 150 100 50 Ampacity
6 8 10 14 15
46812 20
46810 25
44610 30
3468 35
3468 40
2346 45
2346 50

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GRW
2CEOY
Thermostat
Green
Red
Brown
G
R
W2 Orange
Black
OY
R
C
Air Handler Heat Pump OD
Section
Typical Heat Pump with Standard Air Handler
W2
C
W
NOTE: Jumper
betweenW2 andE is
required when no OD
T-Stat is used.
For 2-Stage
Heater
Kits
A typical installation with a heat pump thermostat, air handler, and heat pump with an outdoor
thermostat.
GRW
2CEOY
Thermostat
Green
Red
White
G
R
Black
O Y
R
C
Air Handler Heat Pump OD
Section
Typical Heat Pump with
OutdoorThermostat and Air Handler
W2
C
W
E

9
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
temperaturetothelowestobtainablesettingand
set the thermostat function switch to HEATING.
The indoor blower and outdoor unit should stop
running.Afteraminimumoffiveminutes,increase
thesetpointtemperatureofthethermostattothe
maximumsetting.Verifythattheoutdoorunitand
indoorblowerhaveenergized.Feelthe airbeing
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.
NOTE: Other sources for heating (i.e.: electric
furnace, fossil fuel furnace, air handler with
electric heat options, etc.) that interface with
the unit should be functionally checked to verify
system operation and compatibility.Refer to the
installation instructions for this equipment and
performafunctionalcheckoutinaccordancewith
the manufacturer’s instructions.
OUTDOORTHERMOSTAT (if supplied)
The outdoor thermostat prevents the electrical
auxiliary heat (if used) from operating above
40°F outdoor ambient temperature.
Defrost CycleTimer — 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. Three interval settings are available: 30
minutes,60minutes,and90minutes.Timesetting
selectionisdependent 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: Allunitsareshippedfromthe factory with
thedefault timesettingof30minutes.Maximum
heatingperformancecanbeachievedbysetting
the time to 90 minutes.
DEFROST CONTROL BOARD OPERATION
ANDTESTING
1. Terminals “R”-”C” must have 24±V present
betweentheminorderforthetimedelayand
defrost sequences to be operational.
2. Jumper the “T2”-”DFT” test pins. This will
indicate to the board that the defrost T-stat
is closed(if the compressor is running).
Defrost T-stat is closed at 32° or below and
is open at 68° or above. But it’s state is
unknownifthetemperatureisbetween32°F
and 68°F. The defrost thermostat tells the
board whether a defrost cycle needs to be
started or terminated. With the DFT closed
the unit will run for 30/60/90 minutes in heat
modeandthendefrost the outdoorcoil. The
defrostwillturnofftheoutdoorfan,turnonthe
compressorandraisethecoiltemperatureto
68°F. This will open the DFT and terminate
the defrost. If the DFT does not open the
defrost will end after 10 minutes.
3. Defrost board speed-up. With compressor
running in heat mode, next jump the “Test”
pin to “C” on terminal strip.This will initiate
a defrost test in 5, 10 or 15 seconds (This
is determined by the 30, 60 or 90 minute
defrost pin settings.The factory setting will
be30minutes). Notethatthiswillbypassthe
compressoroffdelaywhentheunitgoesinto
defrosttestandifleftindefrosttest,thedelay
willbebypassedwhenthetestisterminated
by the processor. If the jumper is removed
before the test is over the processor will
perform the remainder of a normal defrost.
See step 2 above.
4. Remove the jumpers.
Note: The delay/no-delay pin concerns
compressoroperationduringdefrosts.Thedefault
setting is delay. Reciprocating compressors

10
should only use this setting in conjunction with
an approved hard start kit. Scroll compressors
thathavenoiseissueswhilegoingintoorcoming
outofdefrostshouldusethis30seconddelayto
reducethedefrostnoise.Toswitchfromno-delay
to delay remove the pin from the “no-delay” pin
location and shift it to the “delay” pin location.
Speed up changes:
Manually initiating a defrost will cause the
compressortoruncontinuallywhenentering
defrost.
Normal defrost operation:
To test normal defrost operation when the
temperature is above 35°F, jumper “R” to
“DFT”onthe624656boardandallowtheunit
to run for 30 minutes. Defrost will continue
until the “R” to “DFT” jumper is removed or
for 10 minutes. Remove the jumper.
The5minutetimedelayfeaturecanbeshortened1
timeto1secondbyjumpingthe“Test”to“C”terminal.
Remove the jumper and repeat as desired.
Note: If jumper is left on the “Test” to “common”
pins permanently, the defrost cycle will become
inoperable.
DefrostTest Procedure for 624656
1. Jumper “T2” to “DFT” at the test terminals.
2. With unit running in heat mode, short the
“TEST”terminaltothecommonterminalnear
it. This will speed up the board and cause
it to enter defrost mode in 5/10/15 seconds
depending on the defrost time selection.
Compressor delay will not function during
speed-up.
3. This test will end in 5 seconds if the“TEST”-
common short is not removed.
4. Removeboththeshortandthe“T2”to“DFT”
jumper to terminate the defrost cycle. The
30secondcompressordelayshouldoperate
normally.
5. Test is complete, reset thermostat to home
owner preference.
Optional Equipment — A functional checkout
should be performed in accordance with
the checkout procedures supplied with the
equipment.
Adjustment of Refrigerant Charge:
CAUTION:
Split system heat pump equipment
containsliquidandgaseousrefrigerant
under pressure. Adjustment of
refrigerant charge should only be
attempted by qualified, trained
personnelthoroughlyfamiliarwiththe
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.
NOTE: The following Refrigerant Charging
Charts are applicable to listed assemblies of
equipment and at listed airflows for the indoor
coil.Assembliesofindoorcoilsandoutdoorunits
not listed are not recommended and deviations
from rated airflows or non-listed equipment
combinations may require modifications to the
expansion device(s) and refrigerant charging
procedures for proper and efficient system
operation.
Refrigerant Charging Chart — Refer to
Refrigerant Charging Charts for correct system
charging, and to Orifice Usage Chart for correct
restrictor sizes.
NOTE: Linesets over 15 feet in length may
requireadditionalrefrigerantcharge.NORDYNE
recommends 0.6 oz. of refrigerant per foot for
any lineset over 15 feet.

11
TXV Refrigerant Charging Chart
1.5Ton HPTXV Charging Chart
2.0Ton HP Charging Chart
150
175
200
225
250
275
300
325
350
75 80 85 90 95 100 105 110 115 120 125
Liquid Temperature (F)
Liquid Pressure (psig)
Remove refrigerent when above curve
Add refrigerent when below curve
150
175
200
225
250
275
300
325
350
75 80 85 90 95 100 105 110 115 120 125
Liquid Temperature (F)
Liquid Pressure (psig)
Remove refrigerent when above curve
Add refrigerent when below curve
13 SEER Split System Heat Pump Orifice
Model Number Restrictor Bore Size (in) System Charge R-22(oz.)
Indoor Outdoor
1.5 ton TXV ONLY 0.041 86
2.0 ton TXV ONLY 0.047 109
2.5 ton TXV ONLY 0.053 128
3.0 ton TXV ONLY 0.055 154
3.5 ton TXV ONLY 0.055 189
4.0 ton TXV ONLY 0.065 253
5.0 ton TXV ONLY 0.067 268

12
TXV Refrigerant Charging Chart
2.5Ton HPTXV Charging Chart
3.0Ton HPTXV Charging Chart
150
175
200
225
250
275
300
325
350
75 80 85 90 95 100 105 110 115 120 125
Liquid Temperature (F)
Liquid Pressure (psig)
Remove refrigerent when above curve
Add refrigerent when below curve
150
175
200
225
250
275
300
325
350
75 80 85 90 95 100 105 110 115 120 125
Liquid Temperature (F)
Liquid Pressure (psig)
Add refrigerent when below curve
Remove refrigerent when above curve

13
TXV Refrigerant Charging Chart
3.5Ton HPTXV Charging Chart
4.0Ton HPTXV Charging Chart
150
175
200
225
250
275
300
325
350
75 80 85 90 95 100 105 110 115 120 125
Liquid Temperature (F)
Liquid Pressure (psig)
Add refrigerent when below curve
Remove refrigerent when above curve
150
175
200
225
250
275
300
325
350
75 80 85 90 95 100 105 110 115 120 125
Liquid Temperature (F)
Liquid Pressure (psig)
Add refrigerent when below curve
Remove refrigerent when above curve

14
TXV Refrigerant Charging Chart
5.0Ton HPTXV Charging Chart
150
170
190
210
230
250
270
290
310
330
350
75 80 85 90 95 100 105 110 115 120 125 130 135
Liquid Temperature (F)
Liquid Temperature (psig)
Add refrigerent when below curve
Remove refrigerent when above curve

15
Refrigerant Charging Charts for Heating Mode of Operation
13 SEER Split System Heating Charts
1.5
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
12 116 109 22 134 120 31 152 131 40 170 143 48 174 157 56 188 173 64 203 190 13 123 107 23 140 118 32 157 129 41 174 141 49 181 154 57 195 169 65 210 184 14 130 105 24 146 116 33 162 127 42 177 139 50 188 151 58 202 164 66 217 178
15 137 103 25 152 114 34 166 125 43 181 137 51 195 148 59 209 160 67 224 172
16 144 101 26 158 112 35 171 123 44 185 135 52 202 146 60 216 155 68 231 165 17 151 99 27 164 110 36 176 121 45 188 133 53 209 143 61 223 151 69 238 159 18 158 97 28 170 108 37 181 119 46 192 131 54 216 140 62 230 146 70 245 153
2.0
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
13 121 124 22 138 132 30 154 140 39 171 148 46 175 161 54 188 181 61 201 200 14 128 122 23 143 130 31 159 138 40 175 146 47 182 159 55 195 176 62 208 194 15 135 120 24 149 128 32 164 136 41 179 144 48 189 156 56 202 172 63 215 188
16 142 118 25 155 126 33 169 134 42 182 142 49 196 153 57 209 167 64 222 182
17 149 116 26 161 124 34 174 132 43 186 140 50 203 150 58 216 163 65 229 176 18 156 114 27 167 122 35 178 130 44 190 138 51 210 147 59 223 158 66 236 170 19 163 112 28 173 120 36 183 128 45 193 136 52 217 144 60 230 154 67 243 163

16
Refrigerant Charging Charts for Heating Mode of Operation
13 SEER Split System Heating Charts
2.5
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
10 116 100 18 129 113 26 142 126 33 155 140 42 157 153 50 170 166 58 184 178 11 123 98 19 135 111 27 147 124 34 159 138 43 164 150 51 177 161 59 191 172 12 130 96 20 141 109 28 152 122 35 163 136 44 171 147 52 184 157 60 198 166
13 137 94 21 147 107 29 157 120 36 166 134 45 178 144 53 191 152 61 205 160
14 144 92 22 153 105 30 161 118 37 170 132 46 185 141 54 198 148 62 212 154 15 151 90 23 159 103 31 166 116 38 174 130 47 192 139 55 205 143 63 219 148 16 158 88 24 165 101 32 171 114 39 177 128 48 199 136 56 212 139 64 226 141
3.0
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
14 120 96 21 137 109 28 154 121 35 171 133 44 179 152 55 202 176 65 224 201 15 127 94 22 143 107 29 159 119 36 175 131 45 186 149 56 209 172 66 231 195 16 134 92 23 149 105 30 164 117 37 178 129 46 193 146 57 216 167 67 238 189
17 141 90 24 155 103 31 169 115 38 182 127 47 200 143 58 223 163 68 245 183
18 148 88 25 161 101 32 173 113 39 186 125 48 207 140 59 230 158 69 252 177 19 155 86 26 167 99 33 178 111 40 190 123 49 214 137 60 237 154 70 259 171 20 162 84 27 173 97 34 183 109 41 193 121 50 221 135 61 244 149 71 266 164

17
Refrigerant Charging Charts for Heating Mode of Operation
13 SEER Split System Heating Charts
3.5
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
14 120 101 21 136 113 28 152 124 36 168 135 44 176 156 55 198 188 65 220 220 15 127 99 22 142 111 29 157 122 37 172 133 45 183 154 56 205 184 66 227 214 16 134 97 23 148 109 30 162 120 38 176 131 46 190 151 57 212 179 67 234 208
17 141 95 24 154 107 31 167 118 39 179 129 47 197 148 58 219 175 68 241 202
18 148 93 25 160 105 32 171 116 40 183 127 48 204 145 59 226 170 69 248 196 19 155 91 26 166 103 33 176 114 41 187 125 49 211 142 60 233 166 70 255 190 20 162 89 27 171 101 34 181 112 42 190 123 50 218 139 61 240 161 71 262 184
4.0
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
12 109 77 21 134 95 30 159 113 38 184 131 47 198 153 56 224 180 65 250 208 13 116 75 22 140 93 31 164 111 39 188 129 48 205 150 57 231 176 66 257 202 14 123 73 23 146 91 32 169 109 40 191 127 49 212 148 58 238 171 67 264 195
15 130 71 24 152 89 33 173 107 41 195 125 50 219 145 59 245 167 68 271 189
16 137 69 25 158 87 34 178 105 42 199 123 51 226 142 60 252 162 69 278 183 17 144 67 26 163 85 35 183 103 43 202 121 52 233 139 61 259 158 70 285 177 18 151 65 27 169 83 36 188 101 44 206 119 53 240 136 62 266 153 71 292 171

18
Refrigerant Charging Charts for Heating Mode of Operation
13 SEER Split System Heating Charts
5
TON OUTDOORTEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
13 121 124 20 142 132 27 164 140 34 185 148 43 201 166 54 233 193 66 266 219 14 128 122 21 148 130 28 169 138 35 189 146 44 208 163 55 240 188 67 273 213 15 135 120 22 154 128 29 173 136 36 193 144 45 215 160 56 247 184 68 280 207
16 142 118 23 160 126 30 178 134 37 196 142 46 222 157 57 254 179 69 287 201
17 149 116 24 166 124 31 183 132 38 200 140 47 229 154 58 261 175 70 294 195 18 156 114 25 172 122 32 188 130 39 204 138 48 236 151 59 268 170 71 301 189 19 163 112 26 178 120 33 193 128 40 207 136 49 243 149 60 275 166 72 308 183

19

INSTALLER: PLEASE LEAVE
THESE INSTALLATION INSTRUCTIONS
WITHTHE HOMEOWNER.
708764A (Replaces 7087640)
Specifications and illustrations subject to change
without notice and without incurring obligations.
Printed in U.S.A. (08/08)
¢708764F¤
708764A