Goodman CONDENSING UNIT User manual

CONDENSING UNIT
SINGLE / THREE PHASE HEAT PUMPS
INSTALLATION & SERVICE REFERENCE
© 2010-2012 Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
www.goodmanmfg.com -or- www.amana-hac.com
P/N:IO-403D Date: May 2012
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE EVACUATED
AND CHARGED PER INSTALLATION INSTRUCTIONS
WITH REFRIGERANT LISTED ON SERIAL RATING PLATE.
NOTICE
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT ONLY ON
EXISTING SYSTEMS, AND NOT INTENDED FOR USE IN
NEW SYSTEMS OR NEWLY CONSTRUCTED HOMES.
EPA REGULATIONS PROHIBIT THE SALE OR
DISTRIBUTION OF APPLIANCES PRE-CHARGED WITH
THE REFRIGERANT R-22 IF THOSE APPLIANCES ARE
MANUFACTURED AFTER JANUARY 1, 2010.
COMPONENTS OF EXISTING R-22 SYSTEMS MAY BE
REPAIRED AND/OR REPLACED.
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED SYSTEMS.
See unit rating plate for initial charge.
Important Safety Instructions
The following symbols and labels are used throughout this
manualtoindicate immediate orpotential safety hazards. Itis
the owner’s and installer’s responsibility to read and comply
withallsafetyinformationandinstructionsaccompanyingthese
symbols. Failuretoheed safety informationincreasesthe risk
ofpersonalinjury, property damage,and/orproduct damage.
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
WARNING
ONLY individuals meeting (at a minimum) the
requirements of an “Entry Level Technician” as
specified by the may use this
information. Attempting to install or repair this unit
without such background may result in product
damage, personal injury, or death.
Air-Conditioning, Heating and
Refrigeration Institute (AHRI)
Scroll equipped units should never be used to evacuate
the air conditioning system. Vacuums this low can cause
internal electrical arcing resulting in a damaged or failed
compressor.
CAUTION
Important Note to the Owner Regarding Prod-
uct Warranty
Your warranty certificate is supplied as a separate document
with the unit installed by your contractor. Read the limited
warranty certificate carefully to determine what is and is not
coveredand keep the warranty certificate in a safe place. If you
are unable to locate the warranty certificate please contact
your installing contractor or contact customer service (877-
254-4729)to obtain acopy.
Shipping Inspection
Always keep the unit upright; laying the unit on its side or top
maycauseequipmentdamage.Shippingdamage,andsubse-
quent investigation is the responsibility of the carrier. Verify
the model number, specifications, electrical characteristics,
and accessories are correct prior to installation. The distribu-
torormanufacturerwillnotaccept claimsfromdealersfortrans-
portationdamage or installation of incorrectlyshipped units.
Codes & Regulations
This product is designed and manufactured to comply with
nationalcodes. Installation inaccordancewithsuchcodesand/
orprevailinglocal codes/regulations is theresponsibilityof the
installer. Themanufacturerassumesnoresponsibilityforequip-
ment installed in violation of any codes or regulations. Rated
performanceisachievedafter 72 hours ofoperation.
TheUnited States Environmental ProtectionAgency(EPA)
has issued various regulations regarding the introduc-
tion and disposal of refrigerants. Failure to follow these
regulations may harm the environment and can lead to
the imposition of substantial fines. Should you have any
questions please contact the local office of the EPA.
If replacing a condensing unit or air handler, the system must
bemanufacturer approved and Air Conditioning,Heating and
RefrigerationInstitute (AHRI) matched. NOTE: Installationof
unmatched systems is strongly discouraged.
Operatingthe unit ina structure thatisnot complete(eitheras
partofnew construction orrenovation)will void thewarranty.

2
Installation Clearances
Special consideration must be given to location of the con-
densingunit(s) inregardtostructures,obstructions,otherunits,
andany/all other factorsthat may interferewith air circulation.
Wherepossible,thetopof the unit should becompletelyunob-
structed;however,if vertical conditionsrequire placement be-
neath an obstruction there should be a minimum of 60
inches between the top of the unit and the obstruction(s).
Thespecifieddimensionsmeetrequirementsforair circulation
only. Consult all appropriate regulatory codes prior to deter-
miningfinalclearances.
Anotherimportant consideration inselecting a locationfor the
unit(s) is the angle to obstructions. Either side adjacent the
valves can be placed toward the structure provided the side
awayfrom the structure maintains minimum service clearance.
Cornerinstallationsare strongly discouraged.
OK!
OK!
AA AAA
A
CC
CCOK!
OK!
OK!
OK!
NOT
RECOMMENDED
AA
AA AA
AA
AA
B B B
B
Model Type A B C AA
Residential 10" 10" 18" 20"
Light Commercial 12" 12" 18" 24"
Minimum Airflow Clearance
Thisunitcan be located atgroundfloorlevel or onflatroofs.At
groundfloorlevel, theunitmust be onasolid, level foundation
that will not shift or settle. To reduce the possibility of sound
transmission,thefoundationslab should notbeincontact with
or be an integral part of the building foundation. Ensure the
foundation is sufficient to support the unit. A concrete slab
raisedabovegroundlevelprovides a suitable base.
Rooftop Installations
If it is necessary to install this unit on a roof structure, ensure
theroof structure cansupport theweight and thatproper con-
siderationisgiventotheweather-tightintegrityoftheroof.Since
theunitcanvibrateduringoperation,soundvibrationtransmis-
sion should be considered when installing the unit. Vibration
absorbing pads or springs can be installed between the con-
densingunit legsor frame andthe roofmounting assembly to
reducenoisevibration.
NOTE: These units require special location consideration in
areasofheavysnowaccumulationand/orareaswithprolonged
continuous subfreezing temperatures. Heat pump unit bases
have cutouts under the outdoor coil that permit drainage of
frostaccumulation.Situatetheunitto permit free unobstructed
drainageofthedefrost water and ice.Aminimum3" clearance
under the outdoor coil is required in the milder climates.
Inmore severe weather locations, itis recommendedthat the
unit be elevated to allow unobstructed drainage and air flow.
Thefollowingelevationminimumsarerecommended:
Design Temperature Suggested Minimum Elevation
+15° and above 2 1/2"
-5° to +14° 8"
below -5° 12"
Safe Refrigerant Handling
While these items will not cover every conceivable situation,
theyshould serveas a useful guide.
To avoid possible injury, explosion or death, practice
safe handling of refrigerants.
WARNING
Refrigerants are heavier than air. They can "push out"
the oxygen in your lungs or in any enclosed space.To
avoid possible difficulty in breathing or death:
• Never purge refrigerant into an enclosed room or
space. By law, all refrigerants must be reclaimed.
• If an indoor leak is suspected, throughly ventilate the
area beforebeginningwork.
• Liquid refrigerant can be very cold. To avoid possible
frostbite or blindness, avoid contact and wear gloves
and goggles. If liquid refrigerant does contact your
skin or eyes, seek medical help immediately.
• Always follow EPA regulations. Never burn refrig-
erant, as poisonous gas will be produced.
WARNING
To avoid possible explosion:
Never apply flame or steam to a refrigerant cylinder.
If you must heat a cylinder for faster charging,
partially immerse it in warm water.
Never fill a cylinder more than 80% full of liquid re-
frigerant.
• Never add anything other than R-22 to an R-22 cy-
linder. The service
equipment used must be listed or certified for the
type of refrigerant used.
• Store cylinders in a cool, dry place. Never use a cy-
linder as a platform or a roller.
•
•

3
To avoid possible explosion, use only returnable (not
disposable) service cylinders when removing refrig-
erant from a system.
• Ensure the cylinder is free of damage which could
lead to a leak or explosion.
• Ensure the hydrostatic test date does not exceed
5 years.
• Ensure the pressure rating meets or exceeds 400
lbs.
When in doubt, do not use cylinder.
WARNING
Refrigerant Lines
The compressor mineral oil for R-22 units is susceptible to
moisture absorption and could cause compressor failure.
Do not leave system open to atmosphere any longer than
necessary for installation.
CAUTION
Useonlyrefrigerantgrade(dehydratedandsealed) coppertub-
ingto connect thecondensingunit with theindoor evaporator.
Aftercutting the tubing,install plugs tokeep refrigeranttubing
clean and dry prior to and during installation. Tubing should
alwaysbecut square keeping endsroundand free from burrs.
Cleanthetubing to preventcontamination.
DoNOTletrefrigerant lines comeindirectcontact with plumb-
ing,ductwork, floor joists, wall studs, floors, and walls. When
runningrefrigerantlinesthroughafoundationorwall,openings
should allow for sound and vibration absorbing material to be
placed or installed between tubing and foundation. Any gap
betweenfoundation or wall and refrigerantlinesshouldbefilled
witha pliable silicon-basedcaulk, RTV ora vibration damping
material. Avoid suspending refrigerant tubing from joists and
studs with rigid wire or straps that would come in contact with
thetubing.Use an insulatedorsuspension type hanger.Keep
both lines separate and always insulate the suction line.
These sizes are recommended for line lengths of 79 feet or
less. For other line sizing options or runs of more than fifty
feet,refertoRemote Cooling Service Manual,orTP-106Long
LineSetApplication R-22, orcontactyourdistributor for assis-
tance.
Cond
Unit
Tons Suct Liq Suct Liq Suct Liq
1 1/2 5/8 1/4 3/4 3/8 3/4 3/8
2 5/81/43/43/83/43/8
2 1/2 5/8 1/4 3/4 3/8 7/8 3/8
3 3/4 3/8 7/8 3/8 1 1/8 3/8
3 1/2 7/8 3/8 1 1/8 3/8 1 1/8 3/8
4 7/8 3/8 1 1/8 3/8 1 1/8 3/8
5 7/8 3/8 1 1/8 3/8 1 1/8 3/8
Line Diameter (In. OD)
RECOMMENDED INTERCONNECTING TUBING (Ft)
0-24 25-49 50-79*
* Lines greater than 79 feet in length or vertical elevation
changes more than 50 feet refer to the Remote Cooling
Service Manual or contact your distributor for assistance.
Insulationis necessary topreventcondensation from forming
and dropping from the suction line. Armflex (or satisfactory
equivalent)with 3/8” min. wall thicknessis recommended. In
severe conditions (hot, high humidity areas) 1/2” insulation
may be required. Insulation must be installed in a manner
whichprotects tubing fromdamage and contamination.
Where possible, drain as much residual compressor oil from
existing systems, lines, and traps; pay close attention to low
areas where oil may collect. NOTE: If changing refrigerant
types, ensure the indoor coil and metering device is compat-
ible with the type of refrigerant being used; otherwise, the in-
door coil must be replaced.
Burying Refrigerant Lines
Ifburying refrigerant linescan notbe avoided, usethe follow-
ing checklist.
1. Insulate liquid and suction lines separately.
2. Encloseall underground portionsof the refrigerant lines
inwaterproof material (conduitor pipe) sealingthe ends
wheretubing enters/exits theenclosure.
3. If the lines must pass under or through a concrete slab,
ensurelines are adequatelyprotected and sealed.

4
Refrigerant Line Connections
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE EVACUATED
AND CHARGED PER INSTALLATION INSTRUCTIONS
WITH REFRIGERANT LISTED ON SERIAL RATING PLATE.
NOTICE
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT ONLY ON
EXISTING SYSTEMS, AND NOT INTENDED FOR USE IN
NEW SYSTEMS OR NEWLY CONSTRUCTED HOMES.
EPA REGULATIONS PROHIBIT THE SALE OR
DISTRIBUTION OF APPLIANCES PRE-CHARGED WITH
THE REFRIGERANT R-22 IF THOSE APPLIANCES ARE
MANUFACTURED AFTER JANUARY 1, 2010.
COMPONENTS OF EXISTING R-22 SYSTEMS MAY BE
REPAIRED AND/OR REPLACED.
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED SYSTEMS.
NOTE:Holdingchargemustberemovedbeforebrazing. Open
servicevalvesslowly to removeholdingcharge. Close valves
beforebrazingto prevent contaminantsfromentering system.
IMPORTANT
Toavoid overheating the service valve,TXVvalve,orfilter
drierwhilebrazing,wrapthecomponentwithawet rag, or
use a thermal heat trap compound. Be sure to follow the
manufacturer’s instruction when using the heat trap
compound.Note: Remove Schradervalves fromservice
valves before brazing tubes to the valves. Use a brazing
alloy of 2% minimum silver content. Do not use flux.
Torch heat required to braze tubes of various sizes is
proportionalto the sizeof the tube. Tubes ofsmaller size
requirelessheat to bringthetube to brazingtemperature
before adding brazing alloy. Applying too much heat to
any tube can melt the tube. Service personnel must use
the appropriate heat level for the size of the tube being
brazed. Note: The use of a heat shield when brazing is
recommendedtoavoidburningtheserialplateorthefinish
on the unit.
1. Theends of the refrigerant linesmust be cut square, de-
burred,cleaned,andberoundandfreefromnicksordents.
Anyothercondition increases thechanceofa refrigerant
leak.
2. “Sweep”therefrigerantlinewithnitrogenorinertgasdur-
ing brazing to prevent the formation of copper-oxide in-
side the refrigerant lines. This may cause a blockage or
failureofthemetering device.
3. After brazing, quench the joints with water or a wet cloth
toprevent overheating of theservicevalve.
4. Ensure thefilter drier paintfinishis intact afterbrazing. If
thepaintofthesteelfilterdrierhasbeenburnedorchipped,
repaintortreatwitharust preventative. This is especially
important on suction line filter driers which are continu-
ally wet when the unit is operating.
NOTE: Becareful not tokink or dentrefrigerantlines. Kinked
or dented lines will cause poor performance or compressor
damage.
Do NOT make final refrigerant line connection until plugs are
removedfrom refrigeranttubing.
NOTE: Before brazing, verify indoor piston size by checking
the piston kit chart packaged with indoor unit.
Leak Testing (Nitrogen or Nitrogen-Traced)
To avoid the risk of fire or explosion, never use
oxygen, high pressure air or flammable gases for leak
testing of a refrigeration system.
WARNING
To avoid possible explosion, the line from the
nitrogen cylinder must include a pressure regulator
and a pressure relief valve. The pressure relief valve
must be set to open at no more than 150 psig.
WARNING
Pressure test the system using dry nitrogen and soapy water
to locate leaks. If you wish to use a leak detector, charge the
system to 10 psi using the appropriate refrigerant then use
nitrogentofinishchargingthesystemtoworkingpressurethen
apply the detector to suspect areas. If leaks are found, repair
them. After repair, repeat the pressure test. If no leaks exist,
proceedto system evacuation.
System Evacuation
Condensingunit liquid and suction valves are closed to contain
the charge within the unit. The unit is shipped with the valve
stems closed and caps installed.
REFRIGERANT UNDER PRESSURE!
Failure to follow proper procedures may cause
property damage, personal injury or death.
NOTE: Scrollcompressors should neverbeused to evacuate
or pump down a heat pump or air conditioning system.
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE EVACUATED
AND CHARGED PER INSTALLATION INSTRUCTIONS
WITH REFRIGERANT LISTED ON SERIAL RATING PLATE.

5
NOTICE
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT ONLY ON
EXISTING SYSTEMS, AND NOT INTENDED FOR USE IN
NEW SYSTEMS OR NEWLY CONSTRUCTED HOMES.
EPA REGULATIONS PROHIBIT THE SALE OR
DISTRIBUTION OF APPLIANCES PRE-CHARGED WITH
THE REFRIGERANT R-22 IF THOSE APPLIANCES ARE
MANUFACTURED AFTER JANUARY 1, 2010.
COMPONENTS OF EXISTING R-22 SYSTEMS MAY BE
REPAIRED AND/OR REPLACED.
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED SYSTEMS.
NOTE:Holdingchargemustberemovedbefore brazing.
Prolonged operation at suction pressures less than 20
psig for more than 5 seconds will result in overheating of
the scrolls and permanent damage to the scroll tips, drive
bearings and internal seal.
CAUTION
1. Openservicevalvesbeforeattachingvacuumpump.
2. Connectthe vacuum pumpwith 250micron capability to
theservice valves.
3. Evacuate the system to 250 microns or less using suc-
tion and liquid service valves. Using both valves is nec-
essary as some compressors create a mechanical seal
separating the sides of the system.
4. Closepump valve and hold vacuum for 10 minutes. Typi-
cally pressure will rise during this period.
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0 1 2 3 4 5 6 7 8 9 10
LEAK(S)
PRESENT
MINUTES
VACUUM IN MICRONS
CONDENSIBLES OR SMALL
LEAK PRESENT
NO LEAKS
NO CONDENSIBLES
•Ifthepressure rises to1000microns or lessandremains
steady the system is considered leak-free; proceed to
startup.
• If pressure rises above 1000 microns but holds steady
below 2000 microns, moisture and/or noncondensibles
may be present or the system may have a small leak.
Returnto step 2:Ifthe same resultis encountered check
forleaksaspreviously indicated andrepairasnecessary
thenrepeatevacuation.
•If pressure rises above 2000 microns, a leak is present.
Checkfor leaks as previouslyindicatedandrepairasnec-
essarythenrepeat evacuation.
Electrical Connections
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death due to electric shock.
Wiring must conform with NEC or CEC and all
local codes. Undersized wires could cause
poor equipment performance, equipment damage
or fire.
WARNING
To avoid the risk of fire or equipment damage, use
copper conductors.
WARNING
NOTICE
UNITS WITH RECIPROCATING COMPRESSORS AND
NON-BLEED TXV’S REQUIRE A HARD START KIT.
The condensing unit rating plate lists pertinent electrical data
necessaryforproperelectricalserviceand overcurrent protec-
tion. Wires should be sized to limit voltage drop to 2% (max.)
from the main breaker or fuse panel to the condensing unit.
Consult the NEC, CEC, and all local codes to determine the
correctwire gauge andlength.
Localcodesoftenrequireadisconnect switch located nearthe
unit; do not install the switch on the unit. Refer to the installa-
tioninstructionssuppliedwiththeindoorfurnace/airhandlerfor
specificwiringconnectionsandindoorunitconfiguration. Like-
wise, consult the instructions packaged with the thermostat
formountingand location information.
Overcurrent Protection
Thefollowingovercurrent protection devicesare approved for
use.
• Timedelayfuses
• HACRtype circuitbreakers
These devices have sufficient time delay to permit the motor-
compressor to start and accelerate its load.

6
Three Phase Compressor Rotation
Use care when handling scroll compressors. Dome temp-
eratures could be hot.
CAUTION
Three phase compressors are power phase dependent and
can rotate in either direction.
Verifyproper rotation for three phase compressors by ensuring
thesuctionpressuredropsanddischargepressure rises when
the compressor is energized. NOTE: When operated in re-
verse,a three phase scroll compressorsis noisier and its cur-
rentdraw substantially reducedcomparedto markedvalues.
To correct, disconnect power and switch any two leads at the
unitcontactorandre-observe.
High Voltage Connections
Routepowersupplyandgroundwiresthroughthehighvoltage
portand terminate inaccordance with thewiring diagram pro-
videdinsidethe control panelcover.
Low Voltage Connections
Condensingunitcontrolwiringrequires24Volt minimum,25VA
servicefromtheindoortransformer. Routecontrolwiresthrough
thelow voltage port and terminatein accordance withthe wir-
ingdiagramprovided inside the controlpanelcover.
Thermostat
with Low Voltage Wires to Heat Pump Unit
System Start Up
POSSIBLE REFRIGERANT LEAK
To avoid a possible refrigerant leak, open the service
valves until the top of the stem is 1/8” from the retainer.
CAUTION
Whenopening valves with retainers, open each valve only until
the top of the stem is 1/8” from the retainer. To avoid loss of
refrigerant,DONOTapplypressuretotheretainer.Whenopen-
ingvalves without aretainer remove servicevalve cap andin-
sert a hex wrench into the valve stem and back out the stem
by turning the hex wrench counterclockwise. Open the valve
until it contacts the rolled lip of the valve body.
NOTE: Theseare not back-seatingvalves. It isnotnecessary
to force the stem tightly against the rolled lip.
Theservicevalve cap isthesecondary seal forthevalves and
mustbe properly tightenedto prevent leaks.Make sure capis
clean and apply refrigerant oil to threads and sealing surface
oninsideofcap.Tightencap finger-tight and then tightenaddi-
tional1/6 of aturn(1 wrench flat),or to thefollowing specifica-
tion, to properly seat the sealing surfaces.
1. 3/8” valve to 5 - 10 in-lbs
2. 5/8” valve to 5 - 20 in-lbs
3. 3/4” valve to 5 - 20 in-lbs
4. 7/8” valve to 5 - 20 in-lbs
Do not introduce liquid refrigerant from the cylinder into the
crankcase of the compressor as this may damage the
compressor.
W2
TYPICAL H/P
ROOM THERMOSTAT
HEAT PUMP
SYSTEM COMPOSITE DIAGRAM
HEAT PUMPS
10 KW & BELOW
(OPTIONAL)
OUTDOOR THERMOSTAT
CLOSE ON TEMPERATURE FALL
R
G
C
W2
RED
GREEN
WHITE
BLUE
INDOOR UNIT
R
Y
O
W
BL
#18 GA. 5 WIRE
#18 GA. 7 WIRE
SEE
NOTE
R
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BR
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BL
SEE NOTE #4
R
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E
L
L
O
W
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A
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W
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B
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#18 GA. 6 WIRE NEEDED WHEN OT IS USED
BL
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R
COYR YO CW2G R E

7
POSSIBLE REFRIGERANT LEAK
To avoid a possible refrigerant leak, open the service
valves until the top of the stem is 1/8” from the retainer.
CAUTION
NOTICE
REFRIGERANT MUST BE ADDED TO THE SYSTEM AFTER
EVACUATION IS COMPLETE.
REFRIGERANT UNDER PRESSURE!
• Do not overcharge system with refrigerant.
• Do not operate unit in a vacuum or at negative pres-
sure.
Failure to follow proper procedures may cause
property damage, personal injury or death.
WARNING
1. Add refrigerant amount for the unit being installed. See
unit rating plate for initial charge.
2. Set thermostat tocall for cooling. Checkindoorand out-
door fan operation and allow system to stabilize for 10
minutes for fixed orifices and 20 minutes for expansion
valves.
Drybulb Wetbulb Drybulb Wetbulb Drybulb Wetbulb Drybulb Wetbulb Drybulb Wetbulb
65º54º70º58º75º63º80º67º85º71º
115
100
95
90
85
80
75
70
65
60
NOTE: * Charge 5° super heat, all other could be ± 2°F
SYSTEM SUPERHEAT
Return Air Temperature ( 50%RH )
5
Ambient Condenser
Inlet Temperature
( °FDrybulb )
6
--- --- --- ---
--- --- --- 5
9
--- --- 51011
--- --- 5 5 *
17
5551820
--- 5512
22
5 6 15 24 25
5 5 10 20
29
815212831
5102025
Charge Verification
REFRIGERANT UNDER PRESSURE!
• Do not overcharge system with refrigerant.
• Do not operate unit in a vacuum or at negative pres-
sure.
Failure to follow proper procedures may cause
property damage, personal injury or death.
WARNING
Use refrigerant certified to standards. Use of used
refrigerant may cause compressor damage that is not
covered under warranty. Most portable machines cannot
clean used refrigerant to meet standards.
AHRI
AHRI
CAUTION
NOTICE
V
IOLATION OF EPA REGULATIONS MAY RESULT IN
FINES OR OTHER PENALTIES
Operating the compressor with the suction valve closed
may cause serious compressor damage.
CAUTION
Final ChargeAdjustment
Theoutdoortemperaturemustbe60°Forhigher.Settheroom
thermostat to COOL, fan switch to AUTO, and set the tem-
peraturecontrolwell below room temperature.
After system has stabilized per startup instructions, check
subcoolingand superheat asdetailedin thefollowingsection.

8
SUCTION PRESSURE SATURATED SUCTION
TEMPERATURE ºF
PSIG R-22
50 26
52 28
54 29
56 31
58 32
60 34
62 35
64 37
66 38
68 40
70 41
72 42
74 44
76 45
78 46
80 48
85 50
90 53
95 56
100 59
110 64
120 69
130 73
140 78
150 83
160 86
170 90
SATURATED SUCTION PRESSURE
TEMPERATURE CHART
LIQUID PRESSURE SATURATED LIQUID
TEMPERATURE ºF
PSIG R-22
200 101
210 105
220 108
225 110
235 113
245 116
255 119
265 121
275 124
285 127
295 130
305 133
325 137
355 144
375 148
405 155
415 157
425 n/a
435 n/a
445 n/a
475 n/a
500 n/a
525 n/a
550 n/a
575 n/a
600 n/a
625 n/a
SATURATED LIQUID PRESSURE
TEMPERATURE CHART

9
Fixed Orifice
CAUTION
To prevent personal injury, carefully connect and disconnect
manifoldgauge hoses. Escaping liquid refrigerant can cause
burns. Do not vent refrigerant into the atmosphere. Recover
all refrigerant during system repair and before final unit
disposal.
1. Purge gauge lines. Connect service gauge manifold to
base-valveserviceports.Runsystematleast10 minutes
to allow pressure to stabilize.
2. For bestresults, temporarily installa thermometeron the
suction line near the compressor. The thermometer
should be located within 4” to 6” of the compressor. En-
sure the thermometer makes adequate contact and is
insulated.
NOTE: An optional, less accurate, method is to locate
thethermometeratthe suction line servicevalve.Ensure
the thermometer makes adequate contact and is insu-
lated.
3. Refer to the superheat table provided for proper system
superheat. Add charge to lower superheat or recover
chargeto raise superheat.
4. Disconnect manifold set, installation is complete.
Superheat Formula = Suct. Line Temp. - Sat. Suct. Temp.
Expansion Valve System
1. Purge gauge lines. Connect service gauge manifold to
base-valveserviceports.Runsystematleast10 minutes
to allow pressure to stabilize.
2. Temporarilyinstallthermometeronliquid(small)linenear
liquid line service valve with adequate contact and insu-
latefor best possible reading.
3.Check subcoolingand superheat. Systems with TXVap-
plicationshould have asubcooling of 7 ±2 ºF andsuper-
heat of 8 ± 1 ºF.
a. Ifsubcooling and superheatare low, adjust TXVto
7 to 9 ºF superheat, then check subcooling.
NOTE: To adjust superheat, turn the valve stem
clockwiseto increaseand counter clockwise to de-
crease.
b. Ifsubcoolingislowandsuperheatishigh,addcharge
to raise subcooling to 7 ± 2ºF then check super-
heat.
c. If subcooling and superheat are high, adjust TXV
valveto 8 ±1 ºF superheat,then checksubcooling.
d. If subcooling is high and superheat is low, adjust
TXVvalve to 8 ± 1 ºF superheat and remove charge
to lower the subcooling to 7 ± 2ºF.
NOTE: DoNOTadjustthe charge basedonsuctionpres-
sureunless there is a gross undercharge.
4. Disconnect manifold set, installation is complete.
Subcooling Formula = Sat. Liquid Temp. - Liquid Line
Temp.
NOTE: Check the Schrader ports for leaks and tighten valve
cores if necessary. Install caps finger-tight.
Heat Pump - Heating Cycle
Theproper method ofcharging a heatpump inthe heat mode
is by weight with the additional charge adjustments for line
size, line length, and other system components.

10
Troubleshooting Information
For detailed service information refer to the Remote Condensing Unit Service manual.
Complaint System Operating
Pressures
POSSIBLE CAUSE
DOTS IN ANALYSIS
GUIDE INDICATE
"POSSIBLE CAUSE"
SYMPTOM
System will not start Compressor will not start - fan runs Comp. and Cond. Fan will not start Evaporator fan will not start Condenser fan will not start Compressor runs - goes off on overload Compressor cycles on overload System runs continuously - little cooling/htg Too cool and then too warm Not cool enough on warm days Certain areas too cool, others too warm Compressor is noisy System runs - blows cold air in heating Unit will not terminate defrost Unit will not defrost Low suction pressure Low head pressure High suction pressure High head pressure
Test Method
Remedy
Power Failure •Test Voltage
Blown Fuse ••• Inspect Fuse Size & Type
Unbalanced Power, 3PH ••• Test Voltage
Loose Connection ••• Inspect Connection - Tighten
Shorted or Broken Wires •••••• Test Circuits With Ohmmeter
Open Fan Overload •• Test Continuity of Overload
Faulty Thermostat ••• • Test Continuity of Thermostat & Wiring
Faulty Transformer •• Check Control Circuit with Voltmeter
Shorted or Open Capacitor • •••• Test Capacitor
Internal Compressor Overload Open •♦Test Continuity of Overload
Shorted or Grounded Compressor •• Test Motor Windings
Compressor Stuck ••• ♦Use Test Cord
Faulty Compressor Contactor ••• Test Continuity of Coil & Contacts
Faulty Fan Relay •Test Continuity of Coil And Contacts
Open Control Circuit •Test Control Circuit with Voltmeter
Low Voltage ••• Test Voltage
Faulty Evap. Fan Motor ••
♦Repair or Replace
Shorted or Grounded Fan Motor ••
Test Motor Windings
Improper Cooling Anticipator •• Check Resistance of Anticipator
Shortage of Refrigerant •• ♦•• Test For Leaks, Add Refrigerant
Restricted Liquid Line •• •• •
Remove Restriction, Replace Restricted Part
Open Element or Limit on Elec. Heater ♦♦ Test Heater Element and Controls
Dirty Air Filter ••• • ♦Inspect Filter-Clean or Replace
Dirty Indoor Coil ••• • ♦Inspect Coil - Clean
Not enough air across Indoor Coil ••• • ♦Check Blower Speed, Duct Static Press, Filter
Too much air across Indoor Coil ♦•Reduce Blower Speed
Overcharge of Refrigerant •• •♦••
Recover Part of Charge
Dirty Outdoor Coil •• • ♦•Inspect Coil - Clean
Noncondensibles ••♦•Recover Charge, Evacuate, Recharge
Recirculation of Condensing Air •• •
Remove Obstruction to Air Flow
Infiltration of Outdoor Air ••• Check Windows, Doors, Vent Fans, Etc.
Improperly Located Thermostat •• Relocate Thermostat
Air Flow Unbalanced •• Readjust Air Volume Dampers
System Undersized •• Refigure Cooling Load
Broken Internal Parts •♦Replace Compressor
Broken Valves •• ••
Test Compressor Efficiency
Inefficient Compressor •♦•• Test Compressor Efficiency
Wrong Type Expansion Valve ••• • •• ♦Replace Valve
Expansion Device Restricted ••• • •• •
Remove Restriction or Replace Expansion Device
Oversized Expansion Valve ••
Replace Valve
Undersized Expansion Valve ••• • • Replace Valve
Expansion Valve Bulb Loose ••
Tighten Bulb Bracket
Inoperative Expansion Valve •• • Check Valve Operation
Loose Hold-down Bolts •Tighten Bolts
Faulty Reversing Valve •♦♦♦ ♦♦♦
Replace Valve or Solenoid
Faulty Defrost Control •♦♦♦♦♦ ♦
Test Control
Faulty Defrost Thermostat ♦♦♦♦♦♦♦
Test Defrost Thermostat
Flowrator Not Seating Properly •••
Check Flowrator & Seat or Replace Flowrator
• Cooling or Heating Cycle (Heat Pump) ♦
No Cooling Unsatisfactory Cooling/Heating
Heating Cycle Only (Heat Pump)
NOTICE
UNITS WITH ROTARY OR RECIPROCATING COMPRESSORS AND NON-BLEED
TXV’S REQUIRE A HARD START KIT.

11
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12
SPLIT SYSTEMS
AIRCONDITIONINGANDHEATPUMPHOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS
We strongly recommend a bi-annual maintenance checkup be performed
before the heating and cooling seasons begin by a qualified servicer.
Replace or Clean Filter
IMPORTANTNOTE: Neveroperateunitwithoutafilterinstalled
as dust and lint will build up on internal parts resulting in loss
ofefficiency, equipment damageandpossible fire.
An indoor air filter must be used with your comfort system. A
properlymaintainedfilter will keepthe indoor coilofyour com-
fortsystem clean. Adirty coil couldcause poor operationand/
orsevereequipmentdamage.
Your air filter or filters could be located in your furnace, in a
blower unit, or in “filter grilles” in your ceiling or walls. The
installerofyourairconditionerorheatpump can tell you where
your filter(s) are, and how to clean or replace them.
Check your filter(s) at least once a month. When they are
dirty,replaceorcleanasrequired.Disposabletypefiltersshould
bereplaced. Reusabletype filtersmay becleaned.
You may want to ask your dealer about high efficiency filters.
Highefficiency filters areavailable in bothelectronic andnon-
electronic types. These filters can do a better job of catching
smallairborne particles.
Compressor
The compressor motor is hermetically sealed and does not
requireadditionaloiling.
Motors
Indoorandoutdoorfanmotors are permanently lubricatedand
donot require additionaloiling.
Clean Outside Coil (Qualified Servicer Only)
Air must be able to flow through the outdoor unit of your com-
fort system. Do not construct a fence near the unit or build a
deck or patio over the unit without first discussing your plans
withyour dealer or other qualified servicer.Restricted airflow
couldlead topooroperationand/orsevereequipmentdamage.
Likewise, it is important to keep the outdoor coil clean. Dirt,
leaves, or debris could also restrict the airflow. If cleaning of
theoutdoor coil becomesnecessary, hire aqualified servicer.
Inexperienced people could easily puncture the tubing in the
coil. Even a small hole in the tubing could eventually cause a
large loss of refrigerant. Loss of refrigerant can cause poor
operationand/orsevereequipmentdamage.
Do not use a condensing unit cover to “protect” the outdoor
unit during the winter, unless you first discuss it with your
dealer.Anycoverusedmustinclude“breathable”fabrictoavoid
moisturebuildup.
•Check the thermostat to confirm that it is properly set.
•Wait 15 minutes. Some devices in the outdoor unit or in
programmablethermostats will prevent compressor opera-
tion for awhile, and then reset automatically. Also, some
powercompanieswillinstalldeviceswhich shut off aircon-
ditioners for several minutes on hot days. If you wait sev-
eral minutes, the unit may begin operation on its own.
T O AVOID THE RISK OF EQUIPMENT DAMAGE OR FIRE , INSTALL
THE
SAME AMPERAGE BREAKER OR FUSE AS YOU ARE
REPLACING
. I F THE CIRCUIT BREAKER OR FUSE SHOULD OPEN
AGAIN
WITHIN THIRTY DAYS , CONTACT A QUALIFIED SERVICER
TO
CORRECT THE PROBLEM .
I
F YOU REPEATEDLY RESET THE BREAKER OR REPLACE
THE
FUSE WITHOUT HAVING THE PROBLEM CORRECTED ,
YOU RUN THE RISK OF SEVERE EQUIPMENT DAMAGE .
BEFORE CALLING YOUR SERVICER
•Check the electrical panel for tripped circuit breakers or
failedfuses. Reset thecircuitbreakers or replacefuses as
necessary.
•Check the disconnect switch near the indoor furnace or
blower to confirm that it is closed.
•Checkfor obstructions onthe outdoorunit . Confirmthat it
hasnotbeen covered on thesidesor the top. Removeany
obstruction that can be safely removed. If the unit is cov-
ered with dirt or debris, call a qualified servicer to clean it.
•Check for blockage of the indoor air inlets and outlets.
Confirm that they are open and have not been blocked by
objects(rugs, curtains orfurniture).
•Check the filter. If it is dirty, clean or replace it.
•Listenfor any unusualnoise(s), otherthan normal operat-
ing noise, that might be coming from the outdoor unit. If
youhear unusualnoise(s)comingfromtheunit,calla quali-
fiedservicer.

Important Safety Instructions
The following symbols and labels are used throughout this
manual to indicate immediate or potential safety hazards. It
is the owner’s and installer’s responsibility to read and com-
ply with all safety information and instructions accompanying
these symbols. Failure to heed safety information increases
the risk of personal injury, property damage, and/or product
damage.
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
WARNING
ONLY individuals meeting the requirements of an
“Entry Level Technician”, at a minimum, as specified
by theAir Conditioning, Heating and Refrigeration
Institute (AHRI) may use this information. Attempting
to install or repair this unit without such background
may result in product damage, personal injury,
or death.
Scroll equipped units should never be used to evacuate
the air conditioning system. Vacuums this low can cause
internal electrical arcing resulting in a damaged or failed
compressor.
CAUTION
CONDENSING UNIT
3-PHASE 7.5 & 10 TON HEAT PUMP
INSTALLATION & SERVICE REFERENCE
© 2010-2012 Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
www.goodmanmfg.com -or- www.amana-hac.com
P/N: IO-405C Date: May 2012
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM HOLDING CHARGE ONLY. UNIT
MUST BE EVACUATED AND CHARGED PER INSTALLATION INSTRUCTIONS WITH
REFRIGERANT LISTED ON SERIAL RATING PLATE.
UNITS SHIPPED WITH A HOLDING CHARGE ARE INTENDED FOR COMPONENT
REPLACEMENT ONLY ON EXISTING SYSTEMS, AND NOT INTENDED FOR USE IN
NEW SYSTEMS OR NEWLY CONSTRUCTED HOMES.
NOTICE
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT COMPONENTS FOR PRE-2010
INSTALLED SYSTEMS.
Shipping Inspection
Always keep the unit upright; laying the unit on its side or top
may cause equipment damage. Shipping damage, and sub-
sequentinvestigationis the responsibilityofthe carrier. Verify
the model number, specifications, electrical characteristics,
and accessories are correct prior to installation. The distribu-
tor or manufacturer will not accept claims from dealers for
transportation damage or installation of incorrectly shipped
units.
Codes & Regulations
This product is designed and manufactured to comply with
national codes. Installation in accordance with such codes
and/or prevailing local codes/regulations is the responsibility
of the installer. The manufacturer assumes no responsibility
for equipment installed in violation of any codes or regula-
tions. Rated performance is achieved after 72 hours of op-
eration.
The United States Environmental Protection Agency
(EPA) has issued various regulations regarding the in-
troduction and disposal of refrigerants. Failure to follow
theseregulations may harm the environment and can lead
to the imposition of substantial fines. Should you have
any questions please contact the local office of the EPA.
If replacing a condensing unit or air handler, the system must
bemanufacturer approved and Air Conditioning,Heating and
Refrigeration Institute (AHRI) matched. NOTE: Installation
of unmatched systems is strongly discouraged.

2
Operating the unit in a structure that is not complete (either
as part of new construction or renovation) will void the war-
ranty.
Refer to the unit Specification Sheet for the recommended
indoor model selection. NOTE: This unit must be used with a
purchased single stage room thermostat with 24 VAC control
circuitry.
Installation Clearances
This unit is designed for outdoor installations only. Special
consideration must be given to location of the condensing
unit(s) in regard to structures, obstructions, other units, and
any/all other factors that may interfere with air circulation.
Where possible, the top of the unit should be completely un-
obstructed; however, if vertical conditions require placement
beneath an obstruction there should be a minimum of 60
inches between the top of the unit and the obstruction(s).
The specified dimensions meet requirements for air circula-
tion only. Consult all appropriate regulatory codes prior to de-
termining final clearances.
Anotherimportant consideration in selecting a location for the
unit(s) is the angle to obstructions. Either side adjacent the
valves can be placed toward the structure provided the side
away from the structure maintains minimum service clear-
ance. Corner installations are strongly discouraged.
12"
12"12"
60"
24"
This unit can be located at ground floor level or on flat roofs.
At ground floor level, the unit must be on a solid, level foun-
dation that will not shift or settle. To reduce the possibility of
sound transmission, the foundation slab should not be in con-
tact with or be an integral part of the building foundation. The
foundation slab should be a minimum of 6” wider than the
unitin all directions.Ensure thefoundation is sufficientto sup-
port the unit. A concrete slab raised above ground level pro-
vides a suitable base.
The selected site should be no greater than 50’ below or 70’
above the evaporator section. For optimum performance, the
minimum length interconnecting tubing is preferred. When
possible minimize the amount of bends and turns.
Rooftop Installations
If it is necessary to install this unit on a roof structure, ensure
the roof structure can support the weight and that proper
considerationisgiven to the weather-tightintegrityof the roof.
Since the unit can vibrate during operation, sound vibration
transmission should be considered when installing the unit.
Vibrationabsorbing pads orspringscan be installedbetween
the condensing unit legs or frame and the roof mounting as-
sembly to reduce noise vibration.
NOTE: These units require special location consideration in
areas of heavy snow accumulation and/or areas with
prolongedcontinuous subfreezing temperatures. Heat pump
unit bases have cutouts under the outdoor coil that permit
drainage of frost accumulation. Situate the unit to permit free
unobstructed drainage of the defrost water and ice. A
minimum 3" clearance under the outdoor coil is required in
the milder climates.
In more severe weather locations, it is recommended that
the unit be elevated to allow unobstructed drainage and air
flow. The following elevation minimums are recommended:
Rigging
To avoid possible injury or death, all panels must be
in position and secured before lifting this equipment
Use field-supplied spreader bars when lifting the unit to mini-
mize the possibility of lifting cable/straps damage. To pro-
tect the cabinet louvers, use protective material such as ply-
wood behind the cable/straps. Arrange the straps to form a
central suspension point. NOTE: When raising and setting
the unit, observe all safety rules. Remove shipping skid and
all protection and lifting material after the unit is in place.

3
Safe Refrigerant Handling
While these items will not cover every conceivable situa-
tion, they should serve as a useful guide.
To avoid possible injury, explosion or death, practice
safe handling of refrigerants.
WARNING
To avoid possible explosion:
Never apply flame or steam to a refrigerant cylinder.
If you must heat a cylinder for faster charging,
partially immerse it in warm water.
Never fill a cylinder more than 80% full of liquid re-
frigerant.
• Never add anything other than R-22 to an R-22 cy-
linder. The service equipment used must be listed
or certified for the type of refrigerant used.
• Store cylinders in a cool, dry place. Never use a cy-
linder as a platform or a roller.
•
•
To avoid possible explosion, use only returnable (not
disposable) service cylinders when removing refrig-
erant from a system.
• Ensure the cylinder is free of damage which could
lead to a leak or explosion.
• Ensure the hydrostatic test date does not exceed
5 years.
• Ensure the pressure rating meets or exceeds 400
lbs.
When in doubt, do not use cylinder.
WARNING
Refrigerant Lines
The compressor mineral oil for R-22 units is susceptible to
moisture absorption and could cause compressor failure.
Do not leave system open to atmosphere any longer than
necessary for installation.
CAUTION
NOTE: For improved refrigerant management, equip the
evaporator coil with a field-supplied thermal expansion valve
(TXV) and the liquid line with a field-supplied liquid line
solenoid.Ensure the solenoidisinstalled as closeas possible
to the evaporator coil to prevent refrigeration migration in the
compressor “OFF” cycle.
Use only refrigerant grade (dehydrated and sealed) copper
tubing to connect the condensing unit with the indoor evapo-
rator. After cutting the tubing, install plugs to keep refriger-
ant tubing clean and dry prior to and during installation. Tub-
ing should always be cut square keeping ends round and
free from burrs. Clean the tubing to prevent contamination.
DoNOTletrefrigerant lines comeindirectcontact with plumb-
ing,ductwork, floor joists, wall studs, floors, and walls. When
running refrigerant lines through a foundation or wall, open-
ings should allow for sound and vibration absorbing material
to be placed or installed between tubing and foundation. Any
gap between foundation or wall and refrigerant lines should
be filled with a pliable silicon-based caulk, RTV or a vibration
damping material. Avoid suspending refrigerant tubing from
joists and studs with rigid wire or straps that would come in
contact with the tubing. Use an insulated or suspension type
hanger. Keep both lines separate and always insulate the
suction line.
These sizes are suitable for line lengths of 74 feet or less. If
a run of more than fifty feet is required, refer to Remote Cool-
ing Service Manual, or TP-106 Long Line Set Application R-
22, or contact your distributor for assistance.
Suct Liq Suct Liq Suct Liq
7 1/2 1 1/8 5/8 1 3/8 5/8 1 3/8 5/8
10 1 3/8 5/8 1 5/8 5/8 1 5/8 5/8
Cond Unit
(Tons)
REFRIGERANT LINE LENGTH (ft)
0-24 25-49* 50-74**
Line Diameter (In.OD)
* Full rating line size
** Lines greater than 74 feet in length or vertical elevation
changes more than 50 feet refer to the Remote Cooling
Service Manual or contact your distributor for assistance.

4
Refrigerant Lines
Insulation is necessary to prevent condensation from forming
and dropping from the suction line. Armflex®(or satisfactory
equivalent) with 3/8” min. wall thickness is recommended. In
severe conditions (hot, high humidity areas) 1/2” insulation
may be required. Insulation must be installed in a manner
which protects tubing from damage and contamination.
Where possible, drain as much residual compressor oil from
existing systems, lines, and traps; pay close attention to low
areas where oil may collect.
NOTE: If changing refrigerant types, ensure the indoor coil
and metering device is compatible with the type of refrigerant
being used; otherwise, the indoor coil must be replaced. To
facilitate oil return to the compressor, a horizontal suction line
should be pitched (1/2” per 10’ toward the condensing unit.
Filter Drier and Sight Glass
A liquid line filter drier is factory installed. Field-install the sup-
plied sight glass/moisture indicator on the liquid line as close
as practical to the service valve.
Burying Refrigerant Lines
If burying refrigerant lines can not be avoided, use the follow-
ing checklist.
1. Insulate liquid and suction lines separately.
2. Enclose all underground portions of the refrigerant lines
in waterproof material (conduit or pipe) sealing the ends
where tubing enters/exits the enclosure.
3. If the lines must pass under or through a concrete slab,
ensure lines are adequately protected and sealed.
Refrigerant Line Connections
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE
EVACUATED AND CHARGED PER INSTALLATION
INSTRUCTIONS WITH REFRIGERANT LISTED ON
SERIAL RATING PLATE.
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT
ONLY ON EXISTING SYSTEMS, AND NOT
INTENDED FOR USE IN NEW SYSTEMS OR NEWLY
CONSTRUCTED HOMES.
NOTICE
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED
SYSTEMS.
NOTE: Holding charge must be removed before brazing.
Openservicevalves slowly to removeholdingcharge. Close
valves before brazing to prevent contaminants from enter-
ing system.
IMPORTANT:Toavoid overheating the service valve,TXV
valve, or filter drier while brazing, wrap the component
with a wet rag, or use a thermal heat trap compound as
recommended by the compound manufacturer. Use a
brazing alloy of 2% minimum silver content. Do not use
flux.
1. The ends of the refrigerant lines must be cut square,
deburred, cleaned, and be round and free from nicks
or dents. Any other condition increases the chance of
a refrigerant leak.
2. “Sweep” the refrigerant line with nitrogen or inert gas
during brazing to prevent the formation of copper-ox-
ide inside the refrigerant lines.
3. After brazing, quench the joints with water or a wet
cloth to prevent overheating of the service valve.
4. Ensure the filter drier paint finish is intact after brazing.
If the paint of the steel filter drier has been burned or
chipped, repaint or treat with a rust preventative. This
isespecially important on suction linefilter driers which
are continually wet when the unit is operating.
NOTE: Becarefulnottokinkordentrefrigerantlines. Kinked
or dented lines will cause poor performance or compressor
damage.
Do NOT make final refrigerant line connection until plugs
are removed from refrigerant tubing.

5
NOTE: Before brazing, verify indoor piston size by checking
the piston kit chart packaged with indoor unit.
Leak Testing
(Nitrogen or Nitrogen-Traced)
To avoid the risk of fire or explosion, never use
oxygen, high pressure air or flammable gases for leak
testing of a refrigeration system.
WARNING
To avoid possible explosion, the line from the
nitrogen cylinder must include a pressure regulator
and a pressure relief valve. The pressure relief valve
must be set to open at no more than 150 psig.
WARNING
Pressure test the system using dry nitrogen and soapy water
to locate leaks. If you wish to use a leak detector, charge the
system to 10 psi using the appropriate refrigerant then use
nitrogen to finish charging the system to working pressure
then apply the detector to suspect areas. If leaks are found,
repair them. After repair, repeat the pressure test. If no leaks
exist, proceed to system evacuation.
System Evacuation
Condensing unit liquid and suction valves are closed to con-
tain the charge within the unit. The unit is shipped with the
valve stems closed and caps installed.
REFRIGERANT UNDER PRESSURE!
Failure to follow proper procedures may cause
property damage, personal injury or death.
WARNING
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE
EVACUATED AND CHARGED PER INSTALLATION
INSTRUCTIONS WITH REFRIGERANT LISTED ON
SERIAL RATING PLATE.
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT
ONLY ON EXISTING SYSTEMS, AND NOT
INTENDED FOR USE IN NEW SYSTEMS OR NEWLY
CONSTRUCTED HOMES.
NOTICE
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED
SYSTEMS.
NOTE: Holding charge must be removed before brazing.
1. Openservice valves before attaching vacuum pump.
2. Connect the vacuum pump with 250 micron capability
to the service valves.
3. Evacuate the system to 250 microns or less using suc-
tion and liquid service valves. Using both valves is nec-
essary as some compressors create a mechanical seal
separating the sides of the system.
4. Closepump valve and hold vacuum for 10 minutes. Typi-
cally pressure will rise during this period.
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0 1 2 3 4 5 6 7 8 9 10
LEAK(S)
PRESENT
MINUTES
VACUUM IN MICRONS
CONDENSIBLES OR SMALL
LEAK PRESENT
NO LEAKS
NO CONDENSIBLES
•If the pressure rises to 1000 microns or less and re-
mains steady the system is considered leak-free; pro-
ceed to startup.
• If pressure rises above 1000 microns but holds steady
below 2000 microns, moisture and/or noncondensibles
may be present or the system may have a small leak.
Returnto step 2:Ifthe same resultis encountered check
for leaks as previously indicated and repair as neces-
sary then repeat evacuation.
•If pressure rises above 2000 microns, a leak is present.
Check for leaks as previously indicated and repair as
necessary then repeat evacuation.
Refer to the Remote Condensing Unit Service Manual for
more detailed instructions on system evacuation, prelimi-
nary charge adjustment, and final charge adjustment.

6
Electrical Connections
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death due to electric shock.
Wiring must conform with NEC or CEC and all
local codes. Undersized wires could cause
poor equipment performance, equipment damage
or fire.
WARNING
To avoid the risk of fire or equipment damage, use
copper conductors.
WARNING
NOTICE
Units with reciprocating compressors and non-bleed TXV’s
require a Hard Start Kit.
This unit is designed for three phase operation. DO NOT
OPERATE ON A SINGLE PHASE POWER SUPPLY. Mea-
sure the power supply to the unit. The supply voltage must
be in agreement with the unit rating plate power require-
ments and within the range listed below:
MODEL MINIMUM SUPPLY
VOLTAGE MAXIMUM SUPPLY VOLTAGE
GSH100903 197 253
GSH100904 414 506
GSH101203 197 253
GSH101204 414 506
Thecondensingunit rating platelistspertinent electrical data
necessary for proper electrical service and overcurrent pro-
tection. Wires should be sized to limit voltage drop to 2%
(max.) from the main breaker or fuse panel to the condens-
ing unit. Consult the NEC, CEC, and all local codes to de-
termine the correct wire gauge and length. The wire size
must be sufficient to carry the Minimum Circuit Ampacity
(MCA) listed on the serial plate and the following table:
MODEL MCA
GSH100903 37.6
GSH100904 18.7
GSH101203 43.2
GSH101204 22.1
The supply voltage can be unbalanced (phase to phase)
within 2%. The following formula can be used to determine
the percentage of voltage unbalance for your unit.
Percentage
Voltage
Unbalance
= 100 x Max. Voltage Deviation Form
Average Voltage
Average Voltage
Example:
L1-L2 = 220V
L2-L3 = 216V
Average Voltage = (220 + 216 + 213)/3
=649/3
Maximum Deviation from Average = 220 - 216 = 4
% Voltage Unbalance = 100 x (4/216)
= 400/216
10 15 20 25 30 35 40 45
14 75 50 37 NR NR NR NR NR
12 118 79 59 47 NR NR NR NR
10 188 125 95 75 63 54 NR NR
8 301 201 150 120 100 86 75 68
6 471 314 235 188 157 134 118 110
*Based on NEC 1996
MAXIMUM ALLOWABLE LENGTH IN FEET
TO LIMIT VOLTAGE DROP TO 2%
Minimum Circuit Ampacity (MCA)
Wire Size
(AWG)
Example:
A GSH100903 is to be installed. The distance from the
building to the unit is 75’. Calculate the minimum wire size
assuming no more than 2% voltage drop.
MCA for GSH100903 = 43.3 (from S& R plate and table).
Applying previous table wire sizes less than #8 AWG
cannot be used for circuits which have a rating of 45A.
The #8 wire is not suitable since the maximum length for
a 45A circuit is 68’.
Solution: Use a #6 AWG wire suitable up to 110’.
NOTE: It is the contractors’s responsibility to follow the
NEC(USA) or CEC (Canada) when sizing the service wire
for this unit.
Local codes often require a disconnect switch located near
the unit; do not install the switch on the unit. Refer to the
installation instructions supplied with the indoor furnace/air
handler for specific wiring connections and indoor unit con-
figuration. Likewise, consult the instructions packaged with
the thermostat for mounting and location information.
Overcurrent Protection
The following overcurrent protection devices are approved
for use.
• Time delay fuses
• HACR type circuit breakers
These devices have sufficient time delay to permit the motor-
compressor to start and accelerate its load.

7
Refer to the unit serial plate and this table for the maximum
overcurrent protection permitted.
MODEL *MAXIMUM FUSE
GSH100903 60
GSH100904 30
GSH101203 70
GSH101204 33
*Fuse or HACR of same value
Run all line voltage wiring a conduit from the service discon-
nectboxto the unit.Refertothe NEC (USA)orCEC (Canada)
codes for the correct size conduit based on the wire size.
The conduit enters the control box through the hole provided
in the bottom. NOTE: The control box hole is sized for 3/4”
conduit. If permitted by code, a flexible conduit is preferred to
minimize vibration transmission from the unit to the building.
Connect the line voltage wires to the L1, L2, and L3 termi-
nalsof thedefinite purpose contactor (located in the unit con-
trol box). Refer to the wiring diagram attached to the unit
when making these connections.
Three Phase Compressor Rotation
Use care when handling scroll compressors. Dome temp-
eratures could be hot.
CAUTION
Three phase scrolls are power phase dependent and can
compress in more than one direction.
Verify proper rotation for three phase compressors by ensur-
ing the suction pressure drops and discharge pressure rises
when the compressor is energized. NOTE: When operated
in reverse, a three phase scroll compressors is noisier and
its current draw substantially reduced compared to marked
values.
To correct, disconnect power and switch any two leads at
the unit contactor and re-observe.
High Voltage Connections
Route power supply and ground wires through the high volt-
age port and terminate in accordance with the wiring dia-
gram provided inside the control panel cover.
Low Voltage Connections
Condensing unit control wiring requires a five-conductor low
voltage circuit from the room thermostat (without options).
The wires should be no smaller than 18 AWG and the field
connection for this circuit must be made in the unit control
box using solderless connectors (i.e. wire nuts). See the fol-
lowing diagram for a typical low voltage hook-up.
SINGLE STAGE LOW VOLTAGE HOOK-UP
THERMOSTAT
OW2
CR
RED
BROWN
WHITE
BLUEBLUE
WHITE
CONDENSING
UNIT AIR HANDLER
YELLOW
ORANGE
RED
YG
GREEN
System Start Up
Never operate the compressor with the suction valve closed
to test the compressor’s pumping efficiency. In some cases,
this can result in serious compressor damage and loss of
warranty coverage.
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE
EVACUATED AND CHARGED PER INSTALLATION
INSTRUCTIONS WITH REFRIGERANT LISTED ON
SERIAL RATING PLATE.
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT
ONLY ON EXISTING SYSTEMS, AND NOT
INTENDED FOR USE IN NEW SYSTEMS OR NEWLY
CONSTRUCTED HOMES.
NOTICE
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED
SYSTEMS.
For the 7-1/2 ton unit starting charge should be 15 lb of R-22
and 18 lbs for the 10 ton unit. The length of line set, indoor
unit airflow, condensing unit location and number of tubing
fittings will have an impact on final unit charge amount. Turn
the electrical power on, and let the system run. Wait for the
refrigerant pressures to stabilize.
Charge Verification
REFRIGERANT UNDER PRESSURE!
• Do not overcharge system with refrigerant.
• Do not operate unit in a vacuum or at negative pres-
sure.
Failure to follow proper procedures may cause
property damage, personal injury or death.
WARNING

8
Use refrigerant certified toAHRI standards. Use of used
refrigerant may cause compressor damage that is not
covered under warranty. Most portable machines cannot
clean used refrigerant to meetAHRI standards.
CAUTION
NOTICE
Violation of EPA regulations may result in fines or other
penalties.
Operating the compressor with the suction valve closed
may cause serious compressor damage.
CAUTION
Final Charge Adjustment
The outdoor temperature must be 60°F or higher. Set the
room thermostat to COOL, fan switch to AUTO, and set the
temperature control well below room temperature.
After system has stabilized per startup instructions, check
subcooling and superheat as detailed in the following sec-
tion.
Expansion Valve System
1. Purge gauge lines. Connect service gauge manifold
tobase-valve service ports. Run system at least 10 min-
utes to allow pressure to stabilize.
2. Temporarily install thermometer on liquid (small) line
near liquid line service valve with adequate contact and
insulate for best possible reading.
3.Check subcoolingand superheat. Systems with TXVap-
plication should have a subcooling of 11 ± 2 ºF and su-
perheat of 9 ± 1 ºF.
a. If subcooling and superheat are low, adjust TXV
to 9 ± 1 ºF superheat, then check subcooling.
NOTE: To adjust superheat, turn the valve stem clock-
wise to increase and counter clockwise to de-
crease.
b. If subcooling is low and superheat is high, add
charge to raise subcooling to 11 ± 2ºF then check
superheat.
c. If subcooling and superheat are high, adjust TXV
valve to 9 ± 1 ºF superheat, then check subcool-
ing.
d. If subcooling is high and superheat is low, adjust
TXV valve to 9 ± 1 ºF superheat and remove
charge to lower the subcooling to 11 ± 2ºF.
NOTE:DoNOTadjustthechargebasedonsuctionpres-
sure unless there is a gross undercharge.
4. Disconnect manifold set, installation is complete.
Subcooling Formula = Sat. Liquid Temp. - Liquid Line Temp.
NOTE: Check the Schrader ports for leaks and tighten valve
cores if necessary. Install caps finger-tight.
System Charging Heating Mode. Measure the hot gas dis-
chargeat thecompressor tocheck thesystem chargein heat
mode.
1. Allow the system to operate for at least 20 minutes.
2. Attach and insulate an electronic thermometer to the
hot gas discharge line mid way between the compres-
sor and the reversing valve. Note: The thermometer is
to be well insulated to prevent ambient influences.
3. Adjust the charge to maintain a clear sight glass.
4. Allow the compressor to operate for about 10 additional
minutes and measure the hot gas discharge tempera-
ture.
5. Using an additional electronic thermometer, measure
the ambient.
6. Adjust the charge until the hot gas temperature equals
105ºF+ambient (+ or –5ºF).Removecharge to increase
the temperature.
NOTE: When adjusting the charge, allow the compressor to
operate for about 10 minutes before taking readings.
NOTE: Subsequent opening and replace of the cap will
require only 1/2 to 1 hex flat. See the table below for the
torque required for an effective seal on the valve bonnet (1/6
turn past finger tight.
TUBING SIZE TORQUE
(ft-lbs)
5/8 14
1 3/8 16
Afterclosing thevalve bonnet,perform afinal refrigerant leak
test on the valves and sweat connections. Return the room
thermostat to the desired settings.
Defrost Control Adjustments
The GSH uses a Time/Temperature method for defrost. A
thermal sensor electrically set to “Normally Open” is wired to
the electronic defrost control located in the control box. The
thermal sensor attached to the condenser coil determines
the outdoor coil temperature.
Both coil temperature and compressor “run time” determine
defrosting of the outdoor coil. Adjustments to the defrost tim-
ing selection can be changed from the 60 minute factory set-
ting to either 30 or 90 minutes by moving the jumper on the
defrost control. For the system to initiate a defrost, the fol-
lowing statements must be true:
• The Defrost Sensor is closed, and
• The compressor “run time” is equal to the timing selec-
tion on the defrost board.