Nordyne 10 SEER Standard Efficiency Split System User manual

Outdoor Air Conditioner
10 SEER Standard Efficiency Split System
User’s Information and Installation Instructions
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.
These units have been designed and tested for capacity and efficiency in accordance with ARI Standards. Split System
Air Conditioning units are designed for use with a wide variety of fossil fuel furnaces, electric furnaces, air handlers, and
evaporator coil combinations.

2
USER’S INFORMATION
Figure 1. Typical Thermostat
OPERATING INSTRUCTIONS
Read this owner information to become familiar with the
capabilities and use of your appliance. Keep this with
literatureonotherapplianceswhereyouhaveeasyaccess
toitinthefuture. Ifaproblemoccurs,checktheinstructions
and follow recommendations given. If these suggestions
don’t eliminate your problem, call your servicing contractor
.
To Operate Your Air Conditioner for Cooling —
1. Set the thermostat system switch to COOL or AUTO
and the thermostat fan switch to AUTO. (See Figure 1)
2. Set the thermostat temperature to the desired
temperaturelevelbypressingtheWARMERorCOOLER
button. Please refer totheseparatedetailedthermostat
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.
To Operate Your Furnace for Heating —
1. SetthethermostatsystemswitchtoHEATorAUTOand
the thermostat fan switch to AUTO. (See Figure 1)
2. Set the thermostat temperature to the desired
temperaturelevelbypressingtheWARMERorCOOLER
button. Please refer to the separate detailed user's
manual for complete thermostat programming
instructions. Thefurnaceandindoorblowerwillcycleon
andofftomaintaintheindoortemperatureatthedesired
heating level.
To Shut Off Your Air Conditioner —
SetthethermostatsystemswitchtoOFFandthethermostat
fan switch to AUTO. (See Figure 1)
The system will not operate, regardless of the thermostat
temperaturesetting.
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
circulatethe indoorairto equalizeatemperature unbalance
due to a sun load, cooking, or fireplace operation.
To Maintain Your Air Conditioner —
1. Regularly:
a. Clean or replace the indoor air filter at the start of each
heatingandcoolingseason,andwhenanaccumulation
of dust and dirt is visible on the air filter.
b. Removeanyleavesandgrassclippingsfrom 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 factory-
equipped with oil tubes. The compressor is
hermetically “sealed” and does not require
lubrication.
!
2. Before Each Cooling Season:
Ifthefurnace/airhandlerblowermotorandtheoutdoorunit
fanmotor(s)haveoiltubesatthemotorbearings,apply10
drops of SAE No. 20 motor oil to each oil tube.
3. Before Calling a Service Technician, Be Certain:
a. The unit thermostat is properly set — see “To Operate
YourAirConditioner forCooling”and“ToOperateYour
Furnace for Heating.”
IMPORTANT
CAUTION:
!
Be certain the electrical power to the outdoor
unitandthefurnace/airhandlerisdisconnected
before doing the following recommended
maintenance.

3
1. GENERAL INFORMATION
Readthefollowinginstructionscompletelybeforeperforming
theinstallation.
Condensing Unit Section — Each condensing unit is
shipped with a refrigerant charge adequate to operate the
outdoor section with an indoor matching coil or air handler
and 15 feet of refrigeration line.
NOTE: DO NOT USE ANY PORTION OF THE CHARGE
FOR PURGING OR LEAK TESTING.
Matching coils and air handlers are shipped with a small
holdingchargetopressurizethemtokeepoutcontaminants.
To release the pressure, read the indoor section of the
installation instructions carefully.
Liquid and Suction Lines — Refrigerant grade copper
tubingshouldbeusedwheninstallingthesystem. Refrigerant
suction line tubing should be fully insulated.
Field Connections for Electrical Power Supply — All
wiringmustcomplywiththecurrentprovisionsofthe“National
ElectricalCode”(ANSIC1.)andwithapplicablelocalcodes
havingjurisdiction. Sizeofelectrical conductors and circuit
protectionmustbeincompliancewiththe informationlisted
on the outdoor unit data label.
2. SAFETY CONSIDERATIONS
Pressures Within the System — Split System Air
Conditioning equipment contains liquid and gaseous
refrigerantunderpressure. Installationandservicingofthis
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 without proper
supervision from trained and qualified service personnel.
priortoperformingtheinstallationandoperationalcheckout
of the equipment.
3. SITE PREPARATION
Unpacking Equipment — Remove the cardboard carton
and Homeowner’s Package from the equipment.
InspectforDamage—Inspecttheequipmentfordamage
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 thejob site to determine the
optimumlocationformountingtheoutdoorunit. Overhead
obstructions, poorly ventilated areas, and areas subject
toaccumulationofdebrisshouldbeavoided. Theoutdoor
unitshouldbeinstallednocloserthan18inchesfromthe
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
systemmustbewiredandprovidedwithcircuitprotectionin
accordance with local building codes and the National
Electrical Code.
Minimum Circuit Ampacity — Electrical wiring to the
equipment must be compatible and in compliance with the
minimum circuit ampacity listed on the outdoor unit data
label.
MaximumFuse/CircuitBreakerSize—Circuitprotection
for the outdoor unit must be compatible with the maximum
fuse/circuitbreakersizelistedontheoutdoorunitdatalabel.
4. INSTALLING THE OUTDOOR UNIT
SlabMount—Thesiteselectedforaslabmountinstallation
requiresastablefoundationandonenotsubjecttoerosion.
Theslabshould beleveland anchored (ifnecessary) prior
to placing the equipment on the slab.
Cantilever Mount —The cantilever mount should be
designedwith adequate safetyfactorto supporttheweight
of the equipment, and for loads the mount is subjected to
duringoperation.Installedequipmentshouldbeadequately
securedtothecantilevermountandlevelledpriortooperation
of the equipment.
RoofMount—Themethodofmountingshouldbedesigned
so as not to overload roof structures nor transmit noise to
theinterior ofthestructure. Refrigerantandelectrical lines
shouldberoutedthroughsuitablywaterproofedopeningsto
prevent water leaking into the structure.
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.
!
Labels, Tags, Precautions — When working with this
equipment, follow all precautions in literature, on tags, and
onlabelsprovidedwiththeequipment. Readandthoroughly
understand the instructions provided with the equipment
b. The unit disconnect fuses are in good condition, and
the electrical power to the unit is turned on.
Read Your Warranty
Pleasereadtheseparatewarrantydocumentcompletely. It
contains valuable information about your system.

4
5. INSTALLING THE INDOOR UNIT
The indoor section of the unit should be installed before
proceeding with the routing of refrigerant piping. Consult
theInstallationInstructionsoftheindoorunit(i.e.,airhandler,
fan coil unit, etc.) for details regarding installation.
6. CONNECTING REFRIGERANT TUBING
BETWEENTHEINDOORANDOUTDOORUNIT
General Information — Once the outdoor and indoor unit
placementhasbeendetermined,routetherefrigeranttubing
betweentheequipmentinaccordancewithsoundinstallation
practices. Refrigeranttubingshouldberoutedinamanner
thatminimizesthelengthoftubingandthenumberofbends
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
debrisduringinstallationandinstallationofaliquidlinefilter
drierisrecommendedifcleanlinessoradequacyofsystem
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.
Optional Equipment — Optional equipment (i.e.: filter/
driers,liquidlinesolenoidvalves,etc.)shouldbeinstalledin
strict accordance with the manufacturer’s Installation
Instructions.
Forrefrigerantlinesetsthatincorporatesingleshotcouplings
only:
1. Removeprotectivecapsfromtheunitandtherefrigerant
line couplings
2. Carefully wipe all coupling threads and seals with a
cleanclothtoremoveanydustorforeignmaterialwhich
could contaminate the refrigerant system.
3. Using refrigerant oil, lightly lubricate the diaphragm,
seal and threads on the male unit coupling.
4. Connect couplings as follows:
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
tightenthecouplinganadditional1/4turntoinsure
WARNING:
Turn off all electrical power at the main circuit
boxbeforewiringelectricalpowertotheoutdoor
unit.Failuretocomplymaycauseseverepersonal
injury or death.
!
WiringDiagram/Schematic—Awiringdiagram/schematic
is located on the inside cover of the electrical box of the
outdoor unit. The installer should become familiar with the
wiring diagram/schematic before making any electrical
connections to the outdoor unit.
Outdoor Unit Connections — The outdoor unit requires
bothpower andcontrolcircuitelectricalconnections. Refer
to the unit wiring diagram/schematic for identification and
location of outdoor unit field wiring interfaces.
Control Circuit Wiring — The outdoor unit is designed to
operatefroma24VACcontrol circuit. Control circuit wiring
must comply with the current provisions of the “National
ElectricalCode”(ANSIC1.)andwithapplicablelocalcodes
having jurisdiction.
Thermostat Connections — Thermostat connections
shouldbemadeinaccordancewiththeinstructionssupplied
withthethermostatandwiththe instructionssuppliedwith
the indoor equipment.
Electrical Wiring — Electrical 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 a minimum circuit
ampacityincompliancewiththeoutdoorunitratinglabel.
The facility shall employ electrical circuit protection at a
currentratingnogreaterthanthatindicatedontheoutdoor
unit rating label.
leak-proofconnection.(SeeTableofTorqueValues
for recommended torque values if a torque wrench
is used.)
TABLE OF TORQUE VALUES
Coupling Size Torque
3/8” (10 mm) 10 - 12 ft. lbs.
Liquid Line Coupling (Metric: 14-16 N-m)
3/4” (19 mm) or 34-45 ft. lbs.
7/8” (22 mm) (Metric: 47-61 N-m)
Vapor Line Coupling
Service Valve Cap 5-6 ft. lbs.
(Metric: 7-8 N-m)
7. MAKING ELECTRICAL CONNECTIONS

5
DisconnectSwitch—Anelectricallycompatibledisconnect
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 shall be wired in
strict accordance with current provisions of the “National
Electrical Code” (ANSI C1.), with applicable local codes
havingjurisdiction,andtheInstallationInstructionsprovided
with the equipment. Optional Equipment (i.e., liquid line
solenoidvalves, hardstartkits,lowsuction pressurecutout
switch kit, high pressure cutout switch kit, refrigerant
compressor crankcase heater, etc.) should be installed in
strict accordance with the manufacturer’s Installation
Instructions.
8. START-UP AND CHECKOUT
WARNING:
Ensureelectricalpowertotheunitisoffprior to
performingthefollowingsteps. Failuretodoso
may cause personal injury or death.
!
CAUTION:
If equipped with a refrigerant compressor
crankcase heater, allow 24 hours prior to
performing a function checkout to allow for
heatingoftherefrigerantcompressorcrankcase.
Failure to comply may result in damage and
could cause premature failure of the system.
!
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 move the temperature set-
point to it’s highest setting.
Priortoapplyingelectricalpowertotheoutdoorunit,ensure
that the unit has been properly and securely grounded.
Priortoapplyingelectricitytotheoutdoorunit,ensurepower
supply connections have been made at the facility power
interface and at the outdoor unit.
Outdoor Unit — Ensuretheoutdoorcoilandtopof the unit
are free from obstructions and debris, and all equipment
access/control panels are in place.
Functional Checkout:
Split System Air Conditioning 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
thehomeownerattempttoinstalland/orservice
this equipment. Failure to comply with this
warning could result in equipment damage,
personal injury, or death.
WARNING:
!
Indoor Blower — Set the thermostat function switch to
“Cooling” and the fan switch to ON or MAN. Verify that the
Indoor Blower is operating and that airflow is not restricted.
Set the fan switch back to Auto.
Cooling—Graduallylowerthethermostattemperatureset-
point 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.
Optional Short Cycle Protection — With the system
operatingin“Cooling”mode,notethetemperaturesettingof
thethermostat,andgraduallyraisetheset-pointtemperature
until the outdoor unit and indoor blower de-energize.
Immediatelylowertheset-pointtemperatureofthethermostat
to it’s 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
energizesandthatthetemperatureoftheairsuppliedtothe
facility is cooler than ambient temperature.
Heating — If provided with heating equipment, lower the
thermostattemperaturetothelowestobtainablesettingand
set the thermostat function switch to “Heating." The indoor
blower and outdoor unit should stop running. Increase the
set-point temperature of the thermostat to the maximum
setting.Verifythattheheatingequipmenthasbeenenergized
(i.e., fossil fuel burner operating, etc.) and that the indoor
blower energizes after a short period of time. 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.
Adjustment of Refrigerant Charge:

6
10 SEER SPLIT SYSTEM AIR CONDITIONER
ORIFICE USAGE
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION
NOTE: The Refrigerant Charging Charts are applicable to
matchedassembliesofourequipmentandatlistedairflows
for the indoor coil. Assemblies of indoor coils and outdoor
units 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.
Optional Equipment — A functional checkout should be
performed in specific accordance with the checkout
procedures supplied with the equipment.
1-1/2 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
67 169 137
69 170 149 182 142
71 172 160 184 152 196 147
73 173 171 187 162 199 156 210 150
75 173 193 189 172 202 164 213 158 224 154
77 189 190 203 177 217 166 228 161 239 157
79 205 189 219 177 232 168 243 163 253 160
81 221 189 234 179 247 170 258 166 268 162
83 236 189 249 180 262 172 273 168
85 252 190 264 181 277 174
87 254 200 267 191 280 183
89 269 200 282 192
91 285 201
93
* Note: All pressures are listed in psi
g
. and all temperatures in de
g
rees 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.
MODEL NUMBER RESTRICTOR SYSTEM CHARGE
SINGLE PHASE SIZE (IN.) R-22 (OZ.)
1-1/2 Ton 0.053 62
2 Ton 0.060 72
2-1/2 Ton 0.067 76
3 Ton 0.073 90
3-1/2 Ton 0.077 102
4 Ton 0.082 105
5 Ton 0.093 130
THREE PHASE
3 Ton 0.073 90
4 Ton 0.082 105
5 Ton 0.093 130

7
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION - Continued
2 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
67 180 141
69 182 152 195 147
71 183 163 197 157 210 152
73 184 175 199 167 212 161 225 157
75 184 196 201 177 215 170 228 165 240 162
77 202 195 217 182 231 173 244 169 256 166
79 219 195 233 184 248 176 260 172 272 170
81 235 196 250 186 264 179 276 176 287 173
83 252 197 266 189 280 182 292 179
85 269 199 283 191 297 185
87 271 209 285 201 299 194
89 287 210 302 203
91 304 212
93
2-1/2 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
67 187 145
69 189 157 201 151
71 190 168 203 161 216 156
73 191 180 206 171 219 164 231 160
75 191 201 208 181 221 173 234 168 246 163
77 208 199 223 185 237 176 249 171 261 167
79 225 198 239 187 253 178 265 173 276 170
81 241 198 255 188 269 180 281 176 292 173
83 257 199 271 190 285 182 296 179
85 274 200 287 192 301 184
87 276 210 290 201 303 194
89 292 210 306 202
91 308 211
93
3 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
68 181 148
70 183 160 196 154
72 184 171 198 164 211 159
74 185 183 201 174 214 167 227 163
76 185 204 203 184 217 176 230 171 243 166
78 203 202 219 188 234 179 247 174 259 170
80 220 201 236 190 250 181 263 176 275 173
82 238 201 253 191 267 183 279 179 291 176
84 255 202 269 193 284 185 296 182
86 272 203 286 195 300 187
88 274 213 288 204 303 197
90 291 213 305 205
92 308 214
94

707737A(Replaces7077370)
Specifications and illustrations subject to change
without notice and without incurring obligations.
Printed in U.S.A. (05/01)
REFRIGERANT CHARGING CHARTS FOR
COOLING MODE OF OPERATION - Continued
INSTALLER: PLEASE LEAVE THESE
INSTALLATION INSTRUCTIONS WITH
THE HOMEOWNER.
3-1/2 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
67 180 158
69 182 170 196 163
71 183 181 198 173 212 168
73 185 192 200 183 215 177 229 171
75 185 214 203 193 218 185 232 179 245 175
77 203 211 220 198 235 187 249 182 262 178
79 221 210 237 198 253 189 266 184 279 181
81 239 210 255 200 270 191 283 187 296 183
83 257 210 272 201 287 193 300 189
85 275 211 290 202 305 195
87 277 221 292 212 307 204
89 295 221 310 213
91 312 222
93
4 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
67 180 153
69 182 165 194 158
71 183 176 196 168 209 162
73 184 187 199 178 212 171 224 165
75 184 209 201 188 214 180 227 173 239 168
77 201 206 216 192 230 181 242 175 254 171
79 218 204 232 192 246 183 258 177 269 173
81 234 204 248 193 262 184 274 179 285 175
83 250 204 264 194 278 185 289 181
85 267 204 280 195 294 187
87 269 214 283 204 296 196
89 285 214 299 205
91 301 214
93
5 OUTDOOR TEMPERATURE ( °F )
TON 70 75 80 85 90 95 100 105
Suc. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch. Liquid Disch.
Press. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
63 164 147
65 166 159 180 153
67 167 170 182 163 195 158
69 169 182 184 173 198 166 211 162
71 168 203 186 183 201 175 215 170 227 165
73 187 201 203 187 218 178 231 173 244 169
75 204 200 220 189 235 180 248 175 260 172
77 222 200 237 190 252 182 265 178 277 175
79 239 201 254 192 269 184 282 181
81 257 202 271 194 286 186
83 259 212 274 203 289 196
85 276 212 291 204
87 294 213
89