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Service Manual

R-410A Models

Room Air Conditioners

2 0 1 0

X-Star-ServMan (4-10)

115-Volt: XQ05M10A, XQ06M10A, XQ08M10A, XQ10M10A

Cool Only

115-Volt: EQ08M11A

Cool with Electric Heat

Money

Fan

Set Hr.

Stop

Start

Temperatu

Fan

Cool

On/

Cooler

Warmer

Only

Speed

Saver

Power

Timer Ope

ration

Содержание XStar EQ08M11-A

Страница 1: ...nditioners 2 0 1 0 X Star ServMan 4 10 115 Volt XQ05M10A XQ06M10A XQ08M10A XQ10M10A Cool Only 115 Volt EQ08M11A Cool with Electric Heat Money Fan Set Hr Stop Start Temperature Fan Cool On Cooler Warme...

Страница 2: ...e the EQ 10 Electronic Control Sequence of Operation 11 Functional Component Definition 12 Components Testing 13 16 Refrigeration Sequence of Operation 17 R 410A Sealed System Repair Considerations 18...

Страница 3: ...sistant if possible Capacitors even when disconnected from the electrical power source retain an electrical charge potential capable of causing electric shock or electrocution Handle discharge and tes...

Страница 4: ...contact with liquid refrigerant can result in minor to moderate injury Be extremely careful when using an oxy acetylene torch Direct contact with the torch s flame or hot surfaces can cause serious b...

Страница 5: ...or not following the above Safety Warnings can result in water damage to personal items or property Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit Do...

Страница 6: ...M Dec 1st Digit Function E Electric Heat X Straight Cool 2nd Digit Q Q Star Chassis Size 3rd and 4th Digit Approximate BTU HR in 1000s Cooling Heating BTU Hr capacity listed in the Specification Perf...

Страница 7: ...eve Height Width Depth with Front Shell Depth to Louvers Minimum Extension Into Room Minimum Extension Outside Window Width Thru the wall Installation Finished Hole Minimum Maximum Height Width Max De...

Страница 8: ...ze fuse circuit breaker Read electrical ratings on unit s rating plate Proper circuit protection is the responsibiity of the homeowner Grounding Unit MUST be grounded from branch circuit through servi...

Страница 9: ...e h t f o g n i t a r e g a r e p m a e h t t a h t e r u s e b t i n u s i h t e t a c o l e r r o or time delay fuse does not exceed the amp rating listed in Figure 1 DO NOT use an extension cord T...

Страница 10: ...example if the outside doorsin your home are opened for an extended period of time or more people enter a room Smart Fan may adjust to a higher fan speed to compensate for the increased heat load Thi...

Страница 11: ...he fan only 4 MoneySaver Press the MoneySaver button to activate the MoneySaver feature This feature cycles the fan with the compres sor so that the fan does not run all the time To adjust temperature...

Страница 12: ...the fan will turn on for a period of 90 seconds for air sampling Operation in MONEY SAVER mode will light both the MONEY SAVER and COOL indicators ELECTRONIC CONTROL SEQUENCE OF OPERATION 11 FAN ONLY...

Страница 13: ...hoot ing refer to the wiring diagrams and schematics in the back of this service manual Capacitor Reduces line current and steadies the voltage supply while greatly improving the torque characteristic...

Страница 14: ...rature set point will appear COMPONENTS TESTING ERROR CODE LISTINGS E1 SHORT CYCLE SITUATION Defined as compressor powered on before the three minute time delay ten times in one hour Investigate and c...

Страница 15: ...mation on thermostat testing THERMOSTAT ADJUSTMENT No attempt should be made to adjust thermostat Due to the sensitivity of the internal mechanism and the sophisticated equipment required to check the...

Страница 16: ...possibility of capacitor failure is much greater when the identified terminal is connected to the S or start terminal The identified terminal should always be connected to the supply line or R termin...

Страница 17: ...the connecting wires have been removed A cold resistance reading of approximately 10 11 ohms for the 1 15 KW heater should be registered Figure Heating Element DRAIN PAN VALVE During the cooling mode...

Страница 18: ...sed changed to a Liquid before leaving the condenser coil The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid It next will pass through the refrigerant dri...

Страница 19: ...410A equipment To prevent moisture absorption and lubricant contamination do not leave the refrigeration system open to the atmosphere longer than 1 hour Weigh in the refrigerant charge into the high...

Страница 20: ...ad failure SealedRefrigerationSystemcontainsrefrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants...

Страница 21: ...FREEZE HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch Failure to follow these procedures could result in moderate or serious in...

Страница 22: ...evaporator will not be encountered because the refrigerant will boil later if at all Gauges connected to system will usually have higher head pressure depending upon amount of over charge Suction pres...

Страница 23: ...a partial restriction there may be gurgling sounds at the metering device entrance to the evaporator The evaporator in a partial restriction could be partially frosted or have an ice ball close to th...

Страница 24: ...Test NOTE Consult the speci cation and performance section for running amperage The L R A can also be found on the rating plate Select the proper amperage scale and clamp the meter probe around the wi...

Страница 25: ...oint of contact as a good connection is a must and the other probe in turn to each compressor terminal If a reading is obtained the compressor is grounded and must be replaced Check the complete elect...

Страница 26: ...em will need to be cleaned up following proper procedures 7 Install the replacement compressor 8 Pressurize with a combination of R410 A and nitrogen and leak test all connections with an electronic o...

Страница 27: ...refrigerant and oil from the system Remove compressor capillary tube and filter drier from the system Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent Use approved...

Страница 28: ...ems Allow all items to dry thoroughly before reinstalling them ELECTRONIC ELECTRICAL MECHANICAL Periodically at least yearly or bi yearly inspect all control components electronic electrical and mecha...

Страница 29: ...thoroughly before reinstalling it in the chassis CLEARANCES Inspect the surrounding area inside and outside to ensure that the unit s clearances have not been compromised or altered ROUTINE MAINTENAN...

Страница 30: ...MPS AMPS RUNNING AMPERAGE DRAW AMPS INDOOR TEMPERATURES INDOOR AMBIENT TEMPERATURE F RELATIVE HUMIDITY RH INDOOR COOL HEAT DISCHARGE AIR TEMPERATURE INDOOR F F RETURN AIR TEMPERATURE INDOOR F F OUTDOO...

Страница 31: ...I Power Cord Trips Reset Button Pops Out The LCDI power cord can trip Reset button pops out due to disturbances on your power supply line Press and release RESET listen for click Reset button latches...

Страница 32: ...size is then selected to meet the heating load In extreme northern climates room air conditioners may not be able to be used as a primary source of heat Unit Runs Too Much This may be due to an exces...

Страница 33: ...es not run Inoperative system switch Test switch replace if inoperative Broken loose or incorrect wiring Refer to applicable wiring diagram Open capacitor Test capacitor replace if inoperative Fan spe...

Страница 34: ...Check temp differential delta T across coil Touch test coil return bends for same temp Test for low running current n o i t c A e s u a C e l b i s s o P m e l b o r P Compressor runs continually does...

Страница 35: ...If unit operates replace t stat Loose or broken parts in t stat Check as above Incorrect wiring Refer to appropriate wiring diagram Defective thermistor Replace thermistor or electronic control board...

Страница 36: ...ycles Defective thermistor Replace thermistor or electronic control board T stat differential too narrow Replace t stat Plenum gasket not sealing allowing discharge air to short cycle t stat Check gas...

Страница 37: ...uring ON cycle of compressor or fan n o i t c A e s u a C e l b i s s o P m e l b o r P Does not heat adequately Opened doors or windows Close doors or windows Dirty l a u n a M s r e n w O n i d e d...

Страница 38: ...ELECTRONIC CONTROL COOL ONLY MODELS XQ05M10A XQ06M10A XQ08M10A XQ10M10A 37...

Страница 39: ...ELECTROMECHANICAL CONTROL COOL WITH ELECTRIC HEAT MODEL EQ08M11A 38...

Страница 40: ...thickness is considered Light Construction An insulated wall or masonry wall over 8 inches in thickness is considered Heavy Construction 3b Multiply the total length linear feet of all inside walls b...

Страница 41: ...FEET OF WIDTH 9 SUBTOTAL 10 TOTAL COOLING LOAD BTU per hour to be used for selection of room air conditioner s No Shades 60 80 75 75 110 150 120 0 ____sq ft ____sq ft ____sq ft ____sq ft ____sq ft ___...

Страница 42: ...e unit capacity line intersect read down to the outdoor ambient temperature scale and nd that this unit will deliver the required BTU Hr capacity to approximately 30 F The heat load form on the follow...

Страница 43: ...insulated Sq Ft x 0 10 Built up Roof 1 2 insulated Sq Ft x 0 20 No Insulation Sq Ft x 0 33 FLOOR Area Sq Ft Above Vented Crawl space Insulated 1 Sq Ft x 0 20 Uninsulated Sq Ft x 0 50 Slab on Ground Li...

Страница 44: ...damage which results from improper installation wiring electrical current characteristics or installed in a corrosive atmosphere default or delay in performance caused by war government restrictions...

Страница 45: ...ox 1540 San Antonio Texas 78295 1540 4200 N Pan Am Expressway San Antonio Texas 78218 5212 210 357 4400 877 599 5665 x 846 FAX 210 357 4490 Email tac friedrich com www friedrich com Printed in the U S...

Страница 46: ......

Страница 47: ...Man 4 10 FRIEDRICH AIR CONDITIONING CO Post Office Box 1540 San Antonio Texas 78295 1540 4200 N Pan Am Expressway San Antonio Texas 78218 5212 210 357 4400 FAX 210 357 4490 www friedrich com Printed i...

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