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Temperature
Cooler Warmer
Cool Power
Fan Fan Money
®
Only Speed Saver
Timer Operation
On/ Start Stop Set Hr.
2010
Room Air Conditioners
R-410A Models
Cool Only
115-Volt: XQ05M10A, XQ06M10A, XQ08M10A, XQ10M10A
Cool with Electric Heat
115-Volt: EQ08M11A
X-Star-ServMan (4-10)
Service Manual
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Table Of Contents Important Safety Information .......................................................................................................................................... 2-4 Unit Identification ............................................................................................................................................................... 5 Performance Data ...........................................................................................................
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IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualified service technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to service this product. Installation or repairs made by unqualified persons can result in subjecting the unqualified person making such repairs as well as the persons being served by the equipm
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• Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, and sleeve on the room side of the air conditioning unit while cleaning. • Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry. • Never operate the A/C unit with wet hands. • Use air conditioner on a single dedicated circuit withi
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PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS: • Read the Installation/Operation Manual for this air conditioning unit prior to operating. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Connect to a properly grounded outlet only. • Do not remove ground prong of plug. • Do not cut or modify the power supply cord. • Do not use extension cords with the unit. • Failure to follow these instructions can result in fire and minor to serious property dam
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UNIT IDeNTIf ICATION Model Number Code X Q 08 M 1 0 A 8th Digit – Engineering Major change 1st Digit – Function E = Electric Heat X = Straight Cool 7th Digit – Options 0 = Straight Cool 1 = 1 KW Heat Strip, Nominal 2nd Digit Q = Q-Star Chassis Size 6th Digit – Voltage 1 = 115 Volts 5th Digit 3rd and 4th Digit - Approximate Alphabetical Modifier BTU/HR in 1000s (Cooling) Heating BTU/Hr capacity listed in the Specification/Performance Data Section RAC Serial Number Ident
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PeRf ORMANCe DATA R-410A EVAP. AIR TEMP. DEG. F OPERATING PRESSURES ELECTRICAL RATINGS BREAKER FUSE REF. COOLING CONDENSER Discharge Temp Suction Temp Super Heat Sub-Cooling Voltage PERFORMANCE DATA* TEMPERATURE DEG. F Temp. Locked Rotor Charge in Discharge Air Suction Discharge Amps Cool Amps Heat 60 Hertz Amps Drop F. Amps OZ. XQ05M10A 57 23 117 133 60 5 19 157 410 4.5 24.0 27.0 115 15 XQ06M10A 54 26 120 152 63 12 18 150 410 4.9 25.0 21.0 115 15 XQ08M10A 51 29 119 160 63 13 25 138 420 6.3 3
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ele CTRICAl DATA WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. All electrical connections and wiring MUST be installed by a qualified electrician and conform to the National Electrical Code and all local codes which have jurisdiction. Failure to do so can result in personal injury or death. NOTICE FIRE HAZARD Not following the above WARNING could result in fire or electically unsafe conditions which could cause moderate or serious property damage.
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WARNING: Before operating unit WARNING Make sure the wiring is adequate for your unit. ELECTRICAL SHOCK HAZARD Make sure your electrical receptacle has the same If you have fuses, they should be of the time delay type. Before you install configuration as your air conditioner’s plug. If or reloc ate this unit, be sure that the amperage rating of the circuit breaker different, consult a Licensed Electrician. or time delay fuse does not exceed the amp rating listed in Figure 1. Do not use p
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Howtooperate the Friedrich room airconditioner (XQmodels) To startunit Figure 5 8 9 2 3 4 1 8 9 2 3 4 1 If your air conditioner is installed and plugged into a proper rec ept ac le, it is Figure 3 ready to go.The first timethe unit is started, thecompressorwilldelay for three minutes.See AutomaticComponentProtectiononthe followingpage. PM TouchthePower button once.The unitwill automaticallybeinCool X Star 1 PM mode with the temperature setat75°F (24°C) andthe fanspeed at F1, thesleep setting. Po
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How to use the remote control (XQ models) To start unit To set the timer NOTE: You can set the START and STOP times a minimum of one hour POWER - Press thePower button once. The unit will automatically 1 apart, and a maximum of 23 hours apart. start in the mode and fan speed it was last left on. TIMERSTART - PressStart to view the current start time for cooling. 9 Continue pressing theStart button until you arrive at the start time To set mode of operation you desire. The start time for cooling
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eleCTRONIC CONTROl SeQUeNCe Of OPeRATION MODE CONTROL FAN ONLY MODE The mode control pad(s) allow the selection of the operating When in the FAN ONLY mode, the compressor will not modes of the unit. operate. The fan will run continuously at the user-selected speed (see “Fan Speed Set” below). Smart Fan is not There is a two second delay before the mode activates its available in FAN ONLY Mode. appropriate relay. FAN SPEED SET OPERATING SEQUENCE / CHARACTERISTICS XQ fan speed is changed by p
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FUNCTIONAL COMPONENT DEFINITIONS MECHANICAL COMPONENTS Plenum assembly Diffuser with directional louvers used to direct the conditioned air fl ow. Blower wheel Attaches to the indoor side of the fan motor shaft and is used for distributing unconditioned, room side air though the heat exchanger and delivering conditioned air into the room. Slinger fan blade Attaches to the outdoor side of the fan motor shaft and is used to move outside air through the condenser coil, while slinging conden
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COMPONeNTS TeSTING TESTING THE ELECTRONIC CONTROL ERROR CODE LISTINGS bOARDS FOR XQ MODELS E1 SHORT CYCLE SITUATION: Defined as (compressor powered on before the three minute time delay ten times in one hour. Investigate and correct short cycling problem. X Star PM E2 KEYbOARD STUCK ERROR: If key button(s) are pressed continuously for twenty seconds or more. If MODE Power key is stuck, unit will default to cool. Exit Error Code Cool Mode to see if error “E2” is no longer displayed
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COMPONeNTS TeSTING (Continued) EQ08 SYSTEM CONTROL SWITCH - TEST 4. Turn thermostat knob counterclockwise to its warmest position. “EQ08” SYSTEM CONTROL SWITCH – TEST 5. Test for continuity - contacts should be open. Turn knob to phase of switch to be tested. There must be NOTE: The thermostat must be within the temperature continuity as follows: range listed to open and close. 1. “Fan Only” Position – between terminals “MS” and “H” To maintain the comfort level desired, a cross ambient
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COMPONeNTS TeSTING (Continued) FAN MOTOR A single phase permanent split capacitor motor is used to drive Many motor capacitors are internally fused. Shorting the the evaporator blower and condenser fan. A self-resetting terminals will blow the fuse, ruining the capacitor. A 20,000 overload is located inside the motor to protect against high ohm 2 watt resistor can be used to discharge capacitors temperature and high amperage conditions. (See Figure 23) safely. Remove wires from capacitor and
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COMPONeNTS TeSTING (Continued) HEATING ELEMENT (See Figure) DRAIN PAN VALVE All electric heat models are equipped with a heating element. During the cooling mode of operation, condensate which The EQ08 has a 1.15 KW element. collects in the drain pan is picked up by the condenser fan blade and sprayed onto the condenser coil. This assists in cooling the refrigerant plus evaporating the water. Figure Heating Element During the heating mode of operation, it is necessary that water be r
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RefRIGeRATION SeQUeNCe Of OPeRATION A good understanding of the basic operation of the The refrigerant leaves the condenser Coil through the liquid refrigeration system is essential for the service technician. line as a warm high pressure liquid. It next will pass through Without this understanding, accurate troubleshooting of the refrigerant drier (if so equipped). It is the function of the refrigeration system problems will be more difficult and time drier to trap any moisture present in
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R-410A SeAleD SYSTeM RePAIR CONSIDeRATIONS WARNING Refrigeration system under high pressure Do not puncture, heat, expose to flame or incinerate. Only certified refrigeration technicians should service this equipment. R410A systems operate at higher pressures than R22 equipment. Appropriate safe service and handling practicces must be used. Only use gauge sets designed for use with R410A. Do not use standard R22 gauge sets. The following is a list of important considerations when working wit
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R-410A SeAleD RefRIGeRATION SYSTeM RePAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. EQUIPMENT REQUIRED: 9. High Pressure Gauge - (0 to 750 lbs.) 1. Voltmeter 10. Low Pressure Gauge - (-30 to 200 lbs.) 2. Ammeter 11. Vacuum Gauge - (0 - 1000 microns) 3. Ohmmeter 12. Facilities for flowing nitrogen through refrigeration tubing 4. E.P.A. Approved Refrigerant Recovery System during all brazing processes. 5. Vacuum Pump (capa
