Goodman MSG-12CRN1N Operating instructions

RS6100005
October2007
Service
Instructions
Split System Wall Mounted
Air Conditioners and Heat Pumps
with R-410A Refrigerant
This manual is to be used by qualified, professionally trained HVAC technicians only.
Goodman does not assume any responsibility for property damage or personal injury due
to improper service procedures or services performed by an unqualified person.
Copyright © 2007 Goodman Manufacturing Company, L.P.
Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500
Houston, TX 77056
www.goodmanmfg.com

IMPORTANT INFORMATION
Prideandworkmanshipgointoeveryproducttoprovideourcustomerswithqualityproducts. Itispossible,however,
thatduringitslifetimeaproductmayrequireservice. Productsshouldbeservicedonlybyaqualifiedservicetechnician
whoisfamiliarwiththesafetyproceduresrequiredintherepairandwhoisequippedwiththeproper tools,parts,testing
instrumentsandtheappropriateservicemanual. REVIEWALLSERVICEINFORMATIONINTHEAPPROPRIATE
SERVICEMANUALBEFOREBEGINNINGREPAIRS.
IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS
RECOGNIZESAFETYSYMBOLS,WORDSANDLABELS
TABLE OF CONTENTS
2
To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this
product. For further assistance, please contact:
WARNING
To prevent the risk of property damage, personal
injury, or death, do not store combustible materials or
use gasoline or other flammable liquids or vapors
in the vicinity of this appliance.
WARNING
Goodman will not be responsible for any injury or property damage arising fromimproper service or service
procedures. If you perform service on your own product, you assume responsibility for any personal injury or property
damage which may result.
WARNING
This unit should not be connected to, or used in conjunction with, any devices that are not design certified for use with
this unit or have not been tested and approved by Goodman. Serious property damage or personal injury, reduced unit
performance and/or hazardous conditions may result from the use of devices that have not been approved or certified by
Goodman.
CONSUMERINFORMATIONLINE
GOODMAN®BRANDPRODUCTS
TOLL FREE 1-877-254-4729 (U.S. only)
email us at: [email protected]
fax us at: [phone]
(Not a technical assistance line for dealers.)
Outside the U.S., call 1-931-433-6101. (Not a technical assistance
line for dealers.) Your telephone company will bill you for the call.
Outside the U.S., call 1-713-861-2500. (Not a technical assistance
line for dealers.) Your telephone company will bill you for the call.
IMPORTANTINFORMATION .........................2 - 3
PRODUCT FEATURES..................................... 4
PRODUCT DESIGN ......................................6 - 7
SPECIFICATIONS .......................................8 - 10
SYSTEMOPERATION ..................................... 11
REMOTE CONTROL .................................12 - 13
SERVICE ....................................................14 - 19
TROUBLESHOOTING................................20 - 26
WIRINGDIAGRAMS ...................................27 - 30

3
Thesuccessfuldevelopmentofhermeticallysealedrefrigera-
tioncompressors hascompletely sealedthe compressor's
movingpartsand electricmotorinside acommonhousing,
minimizing refrigerant leaks and the hazards sometimes
associated with moving belts, pulleys or couplings.
Fundamental to the design of hermetic compressors is a
method whereby electrical current is transmitted to the
compressormotorthroughterminalconductorswhichpass
throughthecompressorhousingwall. Theseterminalsare
sealedinadielectricmaterialwhichinsulatesthemfromthe
housing and maintains the pressure tight integrity of the
hermetic compressor. The terminals and their dielectric
embedmentarestronglyconstructed,butarevulnerableto
careless compressor installation or maintenance proce-
dures and equally vulnerable to internal electrical short
circuits caused by excessive system contaminants.
WARNING
System contaminants, improper service procedure
and/or physical abuse affecting hermetic compressor
electrical terminals may cause dangerous system
venting.
WARNING
To avoid possible injury, explosion or death, practice
safe handling of refrigerants.
SAFE REFRIGERANT HANDLING
Whiletheseitems will not cover everyconceivable situation, they should serveasa useful guide.
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
Ineitherof these instances, anelectrical short between the
terminaland the compressorhousing may resultin the loss
of integrity between the terminal and its dielectric embed-
ment. This loss may cause the terminals to be expelled,
thereby venting the vaporous and liquid contents of the
compressor housing and system.
Aventingcompressorterminalnormallypresentsnodanger
toanyone,providingtheterminalprotectivecoverisproperly
in place.
If, however, the terminal protective cover is not properly in
place,a ventingterminalmay dischargea combinationof
(a) hotlubricatingoilandrefrigerant
(b) flammable mixture (if system is contaminated
withair)
inastreamofspraywhichmaybedangeroustoanyoneinthe
vicinity. Death or serious bodily injury could occur.
Under no circumstances is a hermetic compressor to be
electrically energized and/or operated without having the
terminalprotectivecoverproperlyinplace.
IMPORTANT INFORMATION
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, thoroughly ventilate
the area before beginning work.
• Liquid refrigerant can be very cold. To avoid possible
frostbite orblindness, avoid contact with refrigerant
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

4
IMPORTANT INFORMATION
Pleasereadandfollowtheimportantnotesbelow.
Installation:
1. Alwaysusethecorrectsizecircuitbreakerandfuse.
Circuitbreakersshouldbeinstalledonadedicated
circuit.
2. Properlygroundtheunit.
3. Do NOT use extension cords.
4. Ensure that the unit is mounted on a stable instal-
lationstand. Checkperiodicallyforsignsofdeterio-
ration.
5. Runningtheunitforlongperiodsoftimeduringhigh
humidity or with windows/doors open may cause
condensationonfurnishings.
6. Thepowercableshouldnotbestretchedandnoth-
ing should sit on it. Always turn the unit off before
pluggingorunpluggingthepowercable.
7. Makesureproperventilationofconditionedspaceis
provided.
8. Protectunitbeforearrivalofinclementweather.
9. Donotopentheinletgrillduringoperationoftheunit.
10. Donottouchtheelectrostaticfilterifunitisequipped
with one.
11. If smoke or unusual noises emit from the unit,
immediately turn off the unit and disconnect ALL
power. (Seewarningabove.)
12. Donotallowwatertoentertheunit. Intheinstance
that the unit is soaked or submerged, contact an
authorizedservicer.
13. When the unit is not used for a long period of time,
disconnect ALL power to the unit.
14. Placethe outdoorunitin alocationaway fromhigh
trafficareastopreventtrippingordamagetotheunit.
Do not place objects on the unit.
1. Always check for refrigerant leakage after installa-
tionorrepair of the product.
2. Drain hose must be installed properly so water will
drain away from the unit.
3. Installing the unit in an unlevel position may cause
vibrationorwaterleakage.
4. Installtheoutdoorunitawayfromvegetationasthe
hot air may cause damage to vegetation in close
proximity.
5. Toavoidpersonalinjury,alwaysusetwopeopletolift
ortransportthe unit.
6. Unitshouldnotbeinstalledwhereitmaybeexposed
directly to sea coast conditions (sea wind or salt
spray).
Hazards or unsafe practices result in
property damage, product damage, personal injury
or death.
may
Operation:
1. Do not block the inlet or outlet of airflow.
2. Donotuseharshdetergents,solvents,etc.,tocleanthe
unit. A soft cloth is recommended.
3. Usecautionwhenremovingtheairfilter,astheremaybe
sharp,metaledges.
4. Cleanthefiltereverytwo weeksormoreoften,ifneces-
sary and be sure to seat the filter securely.
5. Keephandsandforeignobjectsawayfromtheairoutlets
while the unit is in operation.

5
PRODUCT FEATURES
Indoor unit:
1. ON/OFF operation by remote control.
2. Room temperature sensing.
3. Room temperature control.
4. Startingtemperaturecontrol. 5seconddelayofindoor
fan at start.
5. Timedelaysafetycontrol.Approximaterestarttime:3
minutes.
6. Indoorfanspeedcontrol.High,medium,low&breeze.
7. Operation indication lamps. (LED display for each
mode)
8. 2-directionairvane.Louverdirectionisdecidedbyunit
accordingtooperationmode.
9. Sleepmodeautocontrol.Fanisonlowspeed(cooling/
heating)and willturn offafter 7hours.
10. Independentdehumidification.Usedprimarilyforhigh
humidityconditions/dampareas.
11. Self-diagnosingfunction.Functionsinanyoperational
mode.
12. Air flow directional control. Louver can be manually
setatdesiredpositionorsettoautomaticallyswingupor
down.
13. Automode.Unitautomaticallyadjuststoroomtempera-
ture.
14. Anti-cold function. Prevents the cold air burst at the
beginning of the unit start up.
15. Temperature compensation.
16. Defrostmode.
17. Auto-restart.
18. Flexible wiring connection.
19. Easy-clean panel.
20. Turbo(12kmodels).Incoolingmode,theunitwillreach
the pre-set temperature in the shortest time.
Outdoorunit:
1. Power relay control The unit has a 3 minute delay
betweencontinuouslyON/OFFoperations.
2. Lownoiseairflowsystem.Birdtailpropellerfanmakes
theoutdoor unit run morequietly.
3. Hydrophilicaluminumfin.Appliestocooling&heating
modes only. The fin improves the heating efficiency at
operationmode.
4. Reversing Valve. Operates only in the heating opera-
tionmode,exceptdefrostingoperation.
5. Anti-rust cabinet. Crafted from electrolytic zinc steel
sheet metal and anti-rust coated components.
6. Valve protection cover. Coverprotectsthevalvesand
preventswaterfromdripping.

PRODUCT DESIGN
6
DIMENSIONS - INDOOR UNIT
Dimensions in inches & mm
Model Indoor Unit Dimensions - W x D x H
Inches Dimensions - W x D x H mm
MSG-12CRN1N 35-11/16 x 9-3/8 x 11-1/4 906 x 235 x 286
MSG-18CRN1N 49-1/4 x 9-1/16 x 12-13/16 1250 x 230 x 325
MSG-24CRN1N 49-1/4 x 9-1/16 x 12-13/16 1250 x 230 x 325

PRODUCT DESIGN
7
DIMENSIONS - OUTDOOR UNIT
Dimensions in inches / mm
Model Outdoor Unit Dimensions
W x D x H - Inches L1
Inches (mm) L2 Inches (mm)
MSG-12HRN1W 29-15/16 x 11-1/4 x 23-1/4 20-7/8 (530) 11-3/8 (290)
MSG-18HRN1W 33-1/4 x 13-3/16 x 27-3/8 22 (560) 13-3/16 (335)
MSG-24HRN1W 35-5/16 x 13 x 33-7/8 23-1/4 (590) 13-1/8 (333)

SPECIFICATIONS
8
NOTE: The noise data is based on hemi-anechoic chamber, during actual operation. Because of ambient conditions, these values may be
somewhat different than shown.
Specifications are subject to change without prior notice.
MSG-12*
MSG-12CRN1 MSG-12HRN1
Power Supply - Ph/V/Hz 1, 208/230V/60Hz 1, 208/230V/60Hz
Cooling
Capacity, Btu/H 12,000 12,000
Input, watts 1,050 1,050
Rated current - amps 4.6 4.6
SEER - Btu/w.h 13.0 13.0
Heating
Capacity, Btu/h 13,000 13,000
Input, watts 1,050 1,050
Rated Current - amps 4.6 4.6
HSPF - W/W 7.7 7.7
Max. Current - amps 7.6 7.6
Starting Current - amps 21 / 23.5 21 / 23.5
Compressor
Model PA108X1C-3FZDU PA108X1C-3FZDU
Type Rotary Rotary
Brand Toshiba Toshiba
Capacity - Btu/h 10,850 / 1,100 10,850 / 1,100
Input, watts 1,070 / 1,075 1,070 / 1,075
Rated current (RLA) - amps 5.2 / 4.8 5.2 / 4.8
Locked rotor (LRA) - amps 21 / 23.5 21 / 23.5
Thermal protector B185-135-141E B185-135-141E
Capacitor - μF35
μf / 450 VAC 35μf / 450 VAC
Refrigerant oil - oz. / ml 12 oz. / 350 ml 12 oz. / 350 ml
Indoor Fan Motor
Model WZDK25-38D WZDK25-38D
Brand Welling Welling
Input, watts 32 32
Capacitor - μF---- ----
Speed RPM/minute (High, Med, Low) 1,270 / 1,100 / 1,000 1,270 / 1,100 / 1,000
Indoor air flow - CFM (High, Med, Low) 441 / 365 / 325 441 / 365 / 325
Indoor air flow - (High, Med, Low) / m3/h 750 / 620 / 550 750 / 620 / 550
Indoor noise level - dB(A) (High, Med, Low) 45 / 41 / 38 45 / 41 / 38
Outdoor Fan Motor
Model YDK36-6B YDK36-6B
Brand Welling Welling
Input, watts 85 85
Capacitor - μF2.5μF/450V 2.5μF/450V
Speed RPM/Minute 930 930
Outdoor air flow - CFM 1,118 1,118
Outdoor air flow - m
3
/h 1,900 1,900
Outdoor noise level - dB(A) 55 55
Refrigerant type R410A - Oz. / g 48 oz. / 1350 g 48 oz. / 1350 g
Design pressure - PSI / 'MPa 653 / 4.5 653 / 4.5
Refrigerant Piping
Liquid side / gas side (Inches / mm) 1/4" / 1/2" - Φ6.35 / Φ12.7 1/4" / 1/2" - Φ6.35 / Φ12.7
Max. refrigerant pipe length (feet / m) 33' / 10 m 33' / 10 m
Max. difference in level (feet / m) 16' / 5 m 16' / 5 m
Operation temp. - (°F) / (°C) 63°F - 86°F / 17°C - 30°C 63°F - 86°F / 17°C - 30°C
Ambient temp. - (°F) / (°C) 19°F - 113°F / -7°C - 45°C 19°F - 113°F / -7°C - 45°C
Approximate Application area - Sq. ft. / m
2
194 - 280 / 18 -- 26 194 - 280 / 18 -- 26

SPECIFICATIONS
9
NOTE: The noise data is based on hemi-anechoic chamber, during actual operation. Because of ambient conditions, these values may be
somewhat different than shown.
Specifications are subject to change without prior notice.
MSG-18*
MSG-18CRN1 MSG-18HRN1
Power Supply - Ph/V/Hz 1, 208/230V/60Hz 1, 208/230V/60Hz
Cooling
Capacity, Btu/H 18,000 18,000
Input, watts 1,560 1,530
Rated current - amps 6.8 6.7
SEER - Btu/w.h 13.0 13.0
Heating
Capacity, Btu/h --- 18,000
Input, watts --- 1,630
Rated Current - amps --- 7.1
HSPF - W/W --- 7.7
Max. Current - amps 9.2 10.2
Starting Current - amps 32.6 32.6
Compressor
Model PA150X2CS-3KUU PA150X2CS-3KUU
Type Rotary Rotary
Brand Toshiba Toshiba
Capacity - Btu/h 15,166 / 15,354 15,166 / 15,354
Input, watts 1,505 / 1,510 1,505 / 1,510
Rated current (RLA) - amps 7.30 / 6.65 7.30 / 6.65
Locked rotor (LRA) - amps 32.6 32.6
Thermal protector UP3RE0391-T39 UP3RE0391-T39
Capacitor - μF40
μF / 450 VAC 40 μF / 450 VAC
Refrigerant oil - oz. / ml 25 oz. / 750 ml 25 oz. / 750 ml
Indoor Fan Motor
Model YDK31-6B YDK31-6B
Brand Welling Welling
Input, watts 55 55
Capacitor - μF33
Speed RPM/minute (High, Med, Low) 1,070 / 1,000 / 960 1,070 / 1,000 / 960
Indoor air flow - CFM (High, Med, Low) 618 / 541 / 489 618 / 541 / 489
Indoor air flow - (High, Med, Low) / m3/h 1050 / 920 / 830 1050 / 920 / 830
Indoor noise level - dB(A) (High, Med, Low) 45 / 43 / 41 45 / 43 / 41
Outdoor Fan Motor
Model YDK53-6KB YDK53-6KB
Brand Welling Welling
Input, watts 165 165
Capacitor - μF3
μF/450V 3μF/450V
Speed RPM/Minute 840 840
Outdoor air flow - CFM 1,471 1,471
Outdoor air flow - m
3
/h 2,500 2,500
Outdoor noise level - dB(A) 59 59
Refrigerant type R410A - Oz. / g 71 oz. / 2000 g 71 oz. / 2040 g
Design pressure - PSI / 'MPa 653 / 4.5 653 / 4.5
Refrigerant Piping
Liquid side / gas side (Inches / mm) 1/4" / 1/2" - Φ6.35 / Φ12.7 1/4" / 1/2" - Φ6.35 / Φ12.7
Max. refrigerant pipe length (feet / m) 33' / 10 m 33' / 10 m
Max. difference in level (feet / m) 16' / 5 m 16' / 5 m
Operation temp. - (°F) / (°C) 63°F - 86°F / 17°C - 30°C 63°F - 86°F / 17°C - 30°C
Ambient temp. - (°F) / (°C) 64°F - 113°F / 18°C - 45°C 19°F - 113°F / -7°C - 45°C
Approximate Application area - Sq. ft. / m
2
323 - 431 / 40 - 30 323 - 431 / 30 - 40

SPECIFICATIONS
10
NOTE: The noise data is based on hemi-anechoic chamber, during actual operation. Because of ambient conditions, these values may be
somewhat different than shown.
Specifications are subject to change without prior notice.
MSG-24*
)
MSG-24CRN1 MSG-24HRN1
Power Supply - Ph/V/Hz 1, 208/230V/60Hz 1, 208/230V/60Hz
Cooling
Capacity, Btu/H 24,000 24,000
Input, watts 2,000 2,000
Rated current - amps 8.8 8.8
SEER - Btu/w.h 13.0 13.0
Heating
Capacity, Btu/h --- 24,000
Input, watts --- 2,000
Rated Current - amps --- 8.8
HSPF - W/W --- 7.7
Max. Current - amps 14 14
Starting Current - amps 34.8 34.8
Compressor
Model PA200X2CS-3MKUU PA200X2CS-3MKUU
Type Rotary Rotary
Brand Toshiba Toshiba
Capacity - Btu/h 19820 / 20130 + 5% 19820 / 20130 + 5%
Input, watts 2000 / 1980 + 5% 2000 / 1980 + 5%
Rated current (RLA) - amps 9.70 / 8.75 + 5% 9.70 / 8.75 + 5%
Locked rotor (LRA) - amps 34.8 34.8
Thermal protector UP3SE0396-T39 UP3SE0396-T39
Capacitor - μF50
μf / 450V 50μf / 450V
Refrigerant oil - oz. / ml 25 oz. / 750 ml 25 oz. / 750 ml
Indoor Fan Motor
Model YDK50-4B YDK50-4B
Brand Welling Welling
Input, watts 82 / 69 / 58 82 / 69 / 58
Capacitor - μF33
Speed RPM/minute (High, Med, Low) 1,260 / 1,100 / 990 1,260 / 1,100 / 990
Indoor air flow - CFM (High, Med, Low) 677 / 600 / 581 677 / 600 / 581
Indoor air flow - (High, Med, Low) / m3/h 1150 / 1020 / 930 1150 / 1020 / 930
Indoor noise level - dB(A) (High, Med, Low) 47 / 44 / 42 47 / 44 / 42
Outdoor Fan Motor
Model YDK100-6EB YDK100-6EB
Brand Welling Welling
Input, watts 160 160
Capacitor - μF4
μf / 450V 4μf / 450V
Speed RPM/Minute 740 740
Outdoor air flow - CFM 1,471 1,471
Outdoor air flow - m
3
/h 2,500 2,500
Outdoor noise level - dB(A) 59 59
Refrigerant type R410A - Oz. / g 85 oz. / 2400 g 86 oz. / 2450 g
Design pressure - PSI / 'MPa 653 / 4.5 653 / 4.5
Refrigerant Piping
Liquid side / gas side (Inches / mm) 3/8" / 5/8" - Φ9.53 / Φ16 3/8" / 5/8" - Φ9.53 / Φ16
Max. refrigerant pipe length (feet / m) 33' / 10 m 33' / 10 m
Max. difference in level (feet / m) 16' / 5 m 16' / 5 m
Operation temp. - (°F) / (°C) 63°F - 86°F / 17°C - 30°C 63°F - 86°F / 17°C - 30°C
Ambient temp. - (°F) / (°C) 64°F - 113°F / 18°C - 45°C 19°F - 113°F / -7°C - 45°C
Approximate Application area - Sq. ft. / m
2
431 - 603 / 40 - 56 431 - 603 / 40 - 56

SYSTEM OPERATION
11
REFRIGERANT CYCLE
Cooling only
Heat pump mode
(OUTDOOR
CAPILLARY TUBE
(INDOORCOIL)
OPERATION LIMITS
Cooling operation
Allunits mayoperate inthe coolingmode upto amaximumoutdoor ambienttemperature of111°F (44°C),and downto a
minimumoutdoor ambienttemperatureof 66°F(19°C). The indoorside maybe operated inthe coolingmode with indoor
ambienttemperaturebetween52°Fand88°F(11°Cand31°C).
Heating operation
Heatpumpunitsmayoperateintheheatingmodeuptoamaximumoutdoorambienttemperatureof77°F(25°C),anddown
toaminimumoutdoorambienttemperatureof16°F(-9°C).Theindoorsidemaybeoperatedintheheatingmodewithindoor
ambienttemperaturebetween59°Fand86°F(15°Cand30°C).

12
REMOTE CONTROL
OPERATION OF THE REMOTE CONTROL
Performance Features
1. Operating modes: AUTO, COOL, DRY, HEAT (heat
pump only model) and FAN.
2. Timer Setting Functions - 24 hours.
3. Indoortemperaturesettingrange:62°F-88°F
(17°C-31°C).
4. Full function LCD display.
O
Remote Control Features
1. TEMP ButtonT: Decreases the indoor temperature
setting.
2. TEMPButtonS:Increasestheindoortemperatureset-
ting.
3. MODE Selection Button: Each time the button is
pressed,theoperationmodeisshiftedinthedirectionof
thearrow:
 AUTO  COOL  DRY  HEAT  FAN

----

--------  
 
 --------  
 
 --------  
 
 --------  
 
 ----------
4. SWINGButton:Changesthelouverangle.
5. RESETButton:TherecessedRESETbuttoncancelsall
current settings and returns the control to the initial
settings.
6. AIR DIRECTION Button: Pressing and releasing this
button quickly changes the direction of the horizontal
swing louvers. Pressing this button for more than 2
seconds activates the Auto Swing feature, where the
horizontal swing louvers move back and forth continu-
ously, until the button is pressed again. (This function
is not available on all units.)
7. LEDDISPLAYButton:Pressingthisbuttonwillclearthe
digital display. A second press will illuminate the
display.(ThisfunctionnotavailableonunitswithoutLED
displaywindow.)
8. FAN SPEED Button: This button changes the FAN
SPEEDinfoursteps: AUTO,LOW,MEDorHIGH. Each
timethebuttonispressed,thefanspeedmodeisshifted.
9. ON/OFF Button: Turnstheunitoff andon.
10. TIMERONButton:Initiatestheauto-ontimesequence.
Witheachpress,theauto-timedsettingwillbeincreased
in30secondincrements.Whenthesettingtimedisplays
10:00,eachpresswillincreasetheauto-timedsettingin
60 minute increments. To cancel the auto-timed pro-
gram, adjust the auto-on time to 0:00.
11. SLEEPButton:PressthisbuttontoactivatetheEnergy-
Savingoperationmode.Pressingitagainwillcancelthis
mode.Thisfunction can only beused on COOL, HEAT
and AUTO modes and will automatically maintain the
mostcomfortabletemperatureforyou.
NOTE: Pressing any button when the unit is in SLEEP
mode will cancel this setting.
12. TIMER OFF Button: This button initiates the auto-off
timesequence.Witheachpress,theauto-timedsetting
will be increased in 30 second increments. When the
settingtimedisplays10:00,eachpresswillincreasethe
auto-timed setting in 60 minute increments. To cancel
theauto-timedprogram,adjusttheauto-offtimeto0:00.
13. LOCK Button: Therecessed LOCK button locksin all
the current settings and the remote control does not
accept any operation except the LOCK. To cancel the
LOCK mode, press the button again.
14. TURBO Button: When this button is pushed during
COOLmode,theairconditionerturnsonhighspeedfan.
To cancel TURBO function, press the TURBO button
again. (Not available for all models.)
Display Panel Features
1
2
5
4
6
4
3
7

13
REMOTE CONTROL
1. DIGITAL DISPLAY Area: This area will show the set
temperatureand,ifintheTIMERmode,willshowtheON
and OFF settings of the TIMER. If in the FAN mode,
nothing will be visible on the display.
2. TRANSMISSION Indicator: When the remote control
transmits signals to the indoor unit, this indicator will
flash one time.
3. ON/OFFIndicator:Thissymbolappearswhentheunit
isturnedonbytheremotecontrolanddisappearswhen
the unit is turned off.
4. OPERATION MODE Indicator: To show the current
operating mode -- AUTO, COOL, DRY or HEAT (heat
pump only model) or FAN mode.
5. LOCK Indicator: LOCK display is accomplished by
pushing this button. Push the LOCK button again to
unlock.
6. TIMER DISPLAY Indicator: Shows the settings of the
TIMER.Ifonlythestartingtimeoftheoperationisset,the
indicatorwilldisplay TIMER ON. TIMEROFFis visible
ifthetimeissetfortheunittoturnoff. Ifbothoperations
are set, TIMER ON-OFF will be visible and the unit will
automatically turn ON and turn OFF.
7. FAN SPEED Indicator: Press the FAN SPEED button
to select the desired fan speed setting (AUTO, LOW,
MED, HIGH). Your selection will be display in the LCD
window. (Auto fan speed is not displayed.)
NOTE:Forpurposesofdemonstrationonly,allsettings
are shown on the Display Panel figure. During actual
operation, only the relevant, functional displays are
shownonthe panel.
Operating the Remote Control
Installing and Replacing Batteries
The Remote Control requires two (2) AAA alkaline dry
batteries.
1. Slide the back cover of the battery compartment and
install the batteriesaccording tothe direction(+) and (-)
as shown.
2. To replace old batteries, use the same procedure as in
Step1above.
NOTE:
1. Do not use old or a different type battery in the Remote
Control as this may cause the control to malfunction.
2. Removethebatteriesifyoudonotusetheremotecontrol
forextendedperiods,sincebatteryleakagemaydamage
theremotecontrol.
If batteries show signs of leakage, be careful not to get
theliquidonyourskinorclothes. Inthatevent,washwell
with clean water. Do not use the remote control if the
batteries have leaked into it.
Disposeof batteriesproperly.
3. Theaveragebatterylifeundernormal useconditionsis
approximately6months.
4. Replacethebatteriesifthereisnoansweringbeepfrom
theindoorunitortheTransmissionIndicatorlightfailsto
light.
AutomaticOperation
TurnthepowerON. TheOPERATIONindicationlamponthe
display panel of the indoor unit will flash 6 times and then
automaticallyturnitself off.
1. Use the MODE button to select AUTO.
2. PushtheTEMPbuttontosetthedesiredroomtempera-
ture. The most comfortable settings are between 70°F
and82°F (21°C-28°C).
3. PushtheON/OFFbuttontostarttheairconditioner.The
OPERATIONlamponthedisplaypaneloftheindoorunit
will light. The FAN SPEED will automatically be set so
therewillbenofanspeedindicatorsshownonthedisplay
panel.
4. PushtheON/OFFbuttonagaintostoptheunit'sopera-
tion.
NOTE:
1. In the AUTO mode, the air conditioner will logically
choosethemodeofCOOL,FANorHEATbysensingthe
differencebetweentheactualambientroomtemperature
and the set temperature on the remote control.
2. Manualselection can bemadeif the AUTO modedoes
notmaintainacomfortabletemperature.
COOL/HEAT (heat pump only model)
and FAN Operation
1. Manually override the AUTO mode by using COOL,
HEAT or FAN modes if the AUTO mode does not
maintainacomfortabletemperature.
2. PushtheTEMPbuttontosetthedesiredroomtempera-
ture. When in COOLING mode, the most comfortable
settings are 70°F (21°C) or above. When in HEATING
mode,themostcomfortablesettingsare82°F(28°C)or
below.
3. ToselecttheFANmodeofAUTO,HIGH,MEDorLOW,
press the FAN SPEED button.
4. PresstheON/OFFbutton. Theoperationlamplightsand
the air conditioner starts to operate at your desired
setting. Press the ON/OFF button again to stop the
unit'soperation.

14
In case that more
than 5m.
SERVICE
Torque Wrench Requirements for installation
Cable Connection
Pipe Length & Elevation Requirements
CAUTION: Capacity is based on standard length and maximum allowance length is based on reliability. Oil trap should
be installed every 16.4 feet - 22.07 feet (5 - 7 meters.)
(16 Feet)
Thepowercordorcableconnection
should be selected according to this
specificationtable.
Torque Torque
mm Inch Lbs. per ft. Kg.m
ϕ6.35 1/4 13 1.8
ϕ9.52 3/8 30 4.2
ϕ12.70 1/2 40 5.5
ϕ15.88 5/8 48 6.6
ϕ19.05 3/4 48 6.6
Outside Diameter
12 18 24
mm21.0 1.5 2.5
AWG 14 14 12
Unit Size
Line Set Length Max. Additional Refrigerant
Provided Length Per foot
Vapor Liquid with Unit Elevation Overall of Additional Line
BTUH/h Inches (m) Inches (m) Feet (m) B Feet (m) A Feet (m) Oz. (g/m)
12k 1/2" (ϕ12.7) 1/4" (ϕ6.35) 16 (5) 16 (5) 32 (10) 0.3 oz. (30)
5/8" (ϕ12.7) 1/4" (ϕ6.35) 16 (5) 32 (10) 65 (20) 0.3 oz. (30)
5/8" (ϕ12.7) 3/8" (ϕ9.52) 16 (5) 32 (10) 65 (20) 0.6 oz. (30)
Capacity Max
18k - 24k
Pipe Size

15
SERVICE
Evacuation
1. Connect the vacuum pump to the gauge manifold's
center hose. Connect low pressure gauge hose to gas
sideofoutsideunit.Openlowsidemanifoldgaugevalve
only.
2. Evacuateforapproximatelyonehourto500microns.
3. Closethevalve(lowside)onthechargeset. Turnoffthe
vacuumpumpandmakesurethemicrongaugedoesnot
goabove1,000micronsinapproximately5minutesafter
turningoffthevacuumpump.
4. Disconnectthechargehose fromthevacuumpump.
If the vacuum pump oil becomes dirty or depleted,
replenishasneeded.
WARNING
REFRIGERANT UNDER PRESSURE!
Failure to follow proper procedures may cause
property damage, personal injury or death.
Micron Gauge

16
SERVICE
Gas Charging
4. Disconnect the charge hose from the 3-way valve's
serviceport.
Usequickdisconnecthosestoensurerefrigerantisnot
lost during disconnect process.
5. Replacecapstothe valvestems andservice port.
Usingatorquewrench, tightentheserviceportcap toa
torque of 13 lbs. per foot.
Check for gas leaks.
CHARGING
CYLINDER
A
ND SCALE
WARNING
REFRIGERANT UNDER PRESSURE!
Failure to follow proper procedures may cause
property damage, personal injury or death.
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, thoroughly ventilate
the area before beginning work.
• Liquid refrigerant can be very cold. To avoid possible
frostbite orblindness, avoid contact with refrigerant
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
1. Connect the manifold gauge set center hose to the
chargingcylinder.
(Thishose was disconnectedfrom the vacuumpump.)
2. Purge the air from the air hose.
Openthevalveoftherefrigerantcylinderandcrackopen
thecentermanifoldgaugehoseconnectionatthemani-
foldgaugesettopurgetheair.Followsafetyprocedures
aboveonhandlingliquidrefrigerants.
3. Openthevalve(lowside)onthemanifoldgaugesetand
chargethesystem with R-410Avaporonly.

17
SERVICE
Electronic Control
FUNCTION:
1. Remotereceiving
2. Testingandforcedrunning
3. Positionsetforindoorunitwind vane
4. LEDdisplayingandalarm
5. ON or OFF timer
6. Protectionforthecompressor
7. Currentprotection
8. Hightemperatureprotectionofindoorheatexchangerin
heatingmode
9. Autodefrostingandheatingrecoveryinheatingmode
10. Anti-cold air in heating mode.
Input Voltage 208VAC - 230VAC 175VAC - 253VAC
Input Power Frequency 60 Hz
Ambient Temperature (°F) 11°F - 111°F (Cooling & Heating units)
(°C) -12°C - 44°C (Cooling & Heating units)
(°F) 66°F - 111°F (Cooling only units)
(°C) 19°C - 44°C (Cooling only units)
Indoor Fan normal working amp Less than 1A
Oudoor Fan normal working amp Less than 1.5A
4-Way valve normal working amps Less than 1A
Swing motor 12V DC
Compressor Single phase
Working amp less than 15A
ELECTRONIC CONTROL
50 Hz

18
SERVICE
Protection Features
Thefollowingfeaturesprotectthereliabilityandlifeoftheunit
andcompressor:
1. 3 minute delay for restarting the compressor.
2. Opencircuit sensorprotection
3. Fanspeed sensor(if indoor fanspeed istoolow or
too high, the unit will shut down).
4. Startprotection(ifthecompressorattemptstostart
fourtimeswithin 5minutes,the unitwillshutdown,
andLCDdisplaysthefailureinformation).
5. Overcurrentprotectionofthecompressor.
Fan Only Operation
FanspeedwillcyclebetweenHIGH,MED,LOWandAUTO
when pressing the “FAN SPEED” button on the remote
control.
Cooling Mode Operation
Forheatpumpmodels,thereversingvalveisde-energizedin
thecoolingmode.
Uponacallforcooling(indoorroomtemperaturerisesabout
1.8ºF(1.0°C) more thanset point):
- thecompressor, outdoorfanand lowspeed indoor
fanwill turn on
- iftheindoortemperatureisabout7.2ºF(4.0°C)more
thansetpoint,mediumspeedindoorfanwillturnon.
- iftheindoortemperatureisabout9.0ºF(5.0°C)more
than set point, high speed indoor fan will turn on.
Iftheindoorcoiltemperaturedropstoolow,thecompressor
andoutdoorfanwillturnoffandtheindoorfanwillcontinueto
rununtiltheindoorcoiltemperaturerisestoapredetermined
temperature(5minutesminimum).
Forheatpump models,if theoutdoorcoil temperaturegets
toohigh,thecompressorandoutdoorfanwillturnoffuntilthe
outdoorcoiltemperaturedropstoapredeterminedtempera-
ture (5 minutes minimum).
Dehumidifying Mode Operation
For extra dehumidification, the indoor fan will run on low
speed. Indoor coil temperature protection is provided the
same as in the cooling mode.
Heating Mode Operation
Forheatpumpmodels,thereversingvalveisenergizedinthe
heatingmode(exceptwhendefrosting).
Uponacallforheating(indoorroom temperaturedrops about
1.8ºF(1.0°C) more thanset point):
- thecompressor and outdoorfan willturn on
- theindoorfanwilldelayonforshortperiod,thenwill
rampuptotheselectedfanspeedto reduce“cold-
blow”.
- Whenintheheatingmode,thecompressorwillrun
for a minimum of 7 minutes.
Iftheindoorcoiltemperaturerisestoomuch,thecompres-
sor and fans will turn off.
Defrost Mode Operation
Defrostwillbeinitiatedwhen:
1. outdoorcoiltemperaturestayslessthan30ºF(-1°C)
formore than 3minutes, or
2. outdoorcoiltemperatureislessthan32ºF(0°C)for
90minutesofheatingoperation
Defrostwillbeterminatedwhen:
1. outdoor coil temperature rises to 68ºF (20°C) or
more
2. defrost time reaches 10 minutes
Duringdefrost,thecompressorandoutdoorfaninitiallyturn
off, then after 10 seconds the indoor fan turns off, the
reversingvalvewillshift,then5secondslaterthecompres-
sorwill turnback on. Nearthe endofthe defrostcycle, the
compressorwillshutofffor25seconds(whenthecompres-
sorshutsofftheoutdoorfanwillturnon),thenjustbeforethe
compressorturnsbackon,thereversingvalvewillshiftback
intotheheatingmode,andthecompressorwillturnbackon.
Theindoorfanwillturnbackonwhentheindoorcoilreaches
apredeterminedtemperature.
Automatic Changeover Mode
Operation
- If the room temperature is about 1.8ºF (1.0°C) below
the set point, then the unit will turn on in the heating
mode.
- Iftheroomtemperatureisabout1.8-3.6ºF(1.0-2.0°C)
above the set point, then the unit will turn on in the
coolingmode.
- Ifthe roomtemperature isclose toset point,then unit
will run in the fan only mode.
- Oncetheunitcomesoninonemodeofoperation,itwill
not turn to the other mode of operation for at least 15
minutes.
- The motion of the directional louvers should be set
appropriatelyfortheoperationalmode(thedirectionof
the louvers do not change automatically with the
changeinoperationmode).

19
SERVICE
Forced Cooling Operation
Continuouscoolingoperationcanbeforcedbyselectingthe
FORCEDCOOLINGbuttonorswitch. The unitwilloperate
for30minutescontinuouslyinthecoolingmode,regardless
of the indoor temperature. After 30 minutes the set point
becomes75ºF(24°C)andtheunitoperatesintheDehumidi-
fyingMode. NotethatallprotectionsfromtheCoolingMode
andDehumidifyingModeapply.
Forced Automatic Operation
Forced automatic operation can be forced by selecting the
FORCEDAUTObuttonorswitch. Thetemperaturesetpoint
will be 75ºF (24°C) .
OperationcanbechangedfromRemoteModetoForcedAuto
to Forced Cooling (then back to Remote Mode) by button
selectiononthe remote.
Sleep Mode Operation
Sleep mode function is available for cooling, heating or
automaticmodes.
The set point temperature will rise (when cooling) or drop
(whenheating)about1.8ºF(1.0°C)perhourfor2hours,then
theaircirculationoflowspeedindoorfanwillturnon.After7
hours total, then unit will turn off.
Auto Restart Function
Intheeventofasuddenpowerfailure,theunitisprogrammed
toreturntotheprevious settingsbeforethepowerfailure.
Turbo Mode
For 12K models only, the indoor fan will operate in HIGH
speedwhen the“TURBO” buttononthe remoteis pressed.
Theunitwillreturntonormalspeedwhen“TURBO”buttonis
pressed again. (TURBO MODE will be cancelled if the
operation mode is changed, Forced Cooling mode is se-
lected,ortheunitisturnedoff). NOTE: SLEEPMODEisnot
availablewhileinTURBOMODE.
Display Board
“OPERATION” indicator flashes once every second after
power is on and is turned on continuously when the air
conditioneris inoperation.
“TIMER” indicator turns on when the TIMER is set to ON.
If the outdoor unit starts defrosting “PRE-DEF” indicator is
turnedon.
“AUTO” indicator is turned on when Automatic Mode is
selected (18K & 24K models only).

20
Display Board (18k and 24k MODELS)
Operation:
The indicator flashes once every second after the power is on and will be illuminated when the unit is in operation.
TIMERIndicator:
The indicator illuminates then TIMER is set ON.
PRE-DEF. Indicator (For cooling & heating mode only - for cooling only, it's FAN ONLY):
The air conditioner begins defrosting automatically if the outdoor unit frosts in heating operation. At this time, PRE-DEF.
indicatorilluminates.
For cooling only: when the unit operates in FAN ONLY mode, the FAN ONLY indicator illuminates.
AUTOIndicator:
This indicator will flash when the air conditioner is in AUTO operation.
AUTO TI ME R PRE.-DEF. OPERATI ON
TROUBLESHOOTING
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
Mode Operation
Lamp Timer Lamp
Indoor fan speed is abnormal for over 1 minute Õx
Indoor room temperature or evaporator sensor is
open circuit or short circuit ÕON
Overcurrent protection of the compressor occurs 4 times xÕ
Control Board error ON Õ
Indoor unit communication error ÕÕ
Outdoor condenser temperature sensor is
open circuit or short circuit ÕÕ
x= Off Õ= Flashing
Mode Operation
Lamp Timer Lamp Defrosting Lamp Auto Lamp
Overcurrent protection of the compressor occurs 4 times ÕÕÕÕ
Indoor room termperature sensor is
open circuit or short circuit xÕxx
Temperature sensor on indoor evaporator is
open circuit or short circuit Õxxx
Temperature sensor on outdoor condenser is
open circuit or short circuit
(without for cooling only models) xx
Õx
Outdoor unit protects (outdoor temperature sensor,
phase, order, etc.) xx
ÕÕ
Control Board error xÕxÕ
Indoor unit communication error xxx
Õ
x= Off Õ= Flashing
12K Models
18K & 24K Models
Illuminates simultaneously
Illuminates alternately