Friedrich X-STAR R-410A Service Manual
Room air conditioner
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Also See for X-STAR R-410A:
- Service manual (87 pages) ,
- Parts manual (16 pages) ,
- Service and parts manual (17 pages)
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Summary of Contents for Friedrich X-STAR R-410A
- Page 1 2 0 1 0 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)
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Page 2: Table Of Contents
Table Of Contents Important Safety Information ... 2-4 Unit Identification ... 5 Performance Data ... 6 Chassis Specifications ... 6 Installation Information/Sleeve Dimensions ... 6 Electrical Data ... 7 Before Operating the Unit ... 8 For Best Cooling Performance and Energy Efficiency ... 8 How to Operate the XQ ... -
Page 3: Important Safety Information
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 equipment to hazards resulting in injury or electrical shock which can be serious or even fatal. - Page 4 • Never operate the A/C unit with wet hands. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Use on a properly grounded outlet only. •...
- Page 5 Failure to follow these instructions can result in fire and minor to serious property damage. WATER DAMAGE HAZARDS: • Improper installation maintenance, or servicing of the air conditioner unit, or not following the above Safety Warnings can result in water damage to personal items or property. •...
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Page 6: Unit Identification
UNIT IDeNTIfICATION 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/Performance Data Section RAC Serial Number Identification Guide Serial Number Decade Manufactured... -
Page 7: Performance Data
EQ08M11A 7500 4000 As an ENERGY STAR partner, Friedrich Air Conditioning Co. has determined that the selected ENERGY STAR ® meet the ENERGY STAR ® Estimated yearly operating cost based on a 2007 national average electricity cost of 10.65 cents per kWh. -
Page 8: Electrical Data
Do NOT alter the service cord or plug. Do NOT use an extension cord. Refer to the table above for proper receptacle and fuse type. The consumer - through the AHAM Room Air Conditioner Certification Program - can be certain that the AHAM Certification Seal accurately states the unit’s cooling and heating capacity rating, the amperes and the energy efficiency ratio. -
Page 9: Before Operating The Unit
Unit placement If your air conditioner can be placed in a window or wall that is shaded by a tree i d l i t i n o l l blinds on the sunny side of the dwelling will also add to your unit’s efficiency. -
Page 10: To Start Unit
How to operate the Friedrich room air conditioner To start unit i t i d s n i l l a t ready to go. The first time the unit is started, the compressor will delay for three minutes. See Automatic Component Protection on the following page. -
Page 11: How To Operate The Xq
NOTE: If the unit is unplugged or the power is interrupted, the Set Hr. function must be reset or the On/Off function will not work. Additional RC1 wireless remote controls can be purchased from your Friedrich dealer. r r u... -
Page 12: Electronic Control Sequence Of Operation
eleCTRONIC CONTROl SeQUeNCe Of OPeRATION MODE CONTROL The mode control pad(s) allow the selection of the operating modes of the unit. There is a two second delay before the mode activates its appropriate relay. OPERATING SEQUENCE / CHARACTERISTICS AND FEATURES Compressor Operation The run state of the compressor is determined by the difference between the indoor ambient temperature and... -
Page 13: Functional Component Definition
FUNCTIONAL COMPONENT DEFINITIONS MECHANICAL COMPONENTS Plenum assembly Diffuser with directional louvers used to direct the conditioned airfl 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. -
Page 14: Components Testing
COMPONeNTS TeSTING TESTING THE ELECTRONIC CONTROL bOARDS FOR XQ MODELS Cool Money Saver ® Speed Mode Fan Only Clock Timer Start Time On/Off Hour Stop Time Temp/Hour Activating Test Mode: Activate test mode by pressing at the same time the “MODE”... - Page 15 COMPONeNTS TeSTING (Continued) EQ08 SYSTEM CONTROL SWITCH - TEST “EQ08” SYSTEM CONTROL SWITCH – TEST Turn knob to phase of switch to be tested. There must be continuity as follows: 1. “Fan Only” Position – between terminals “MS” and “H” 2.
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Page 16: Capacitor Check With Capacitor Analyzer
COMPONeNTS TeSTING (Continued) FAN MOTOR A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A self-resetting overload is located inside the motor to protect against high temperature and high amperage conditions. (See Figure 23) WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before... -
Page 17: Components Testing
COMPONeNTS TeSTING (Continued) HEATING ELEMENT (See Figure) All electric heat models are equipped with a heating element. The EQ08 has a 1.15 KW element. The heating element contains a fuse link and a heater limit switch. The fuse link is in series with the power supply and will open and interrupt the power when the temperature reaches 199°F or a short circuit occurs in the heating element. -
Page 18: Refrigeration Sequence Of Operation
RefRIGeRATION SeQUeNCe Of OPeRATION A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of refrigeration system problems will be more difficult and time consuming, if not (in some cases) entirely impossible. The refrigeration system uses four basic principles (laws) in its operation they are as follows: 1. -
Page 19: R-410A Sealed System Repair Considerations
Introduce liquid refrigerant charge into the high side of the system. • For low side pressure charging of R-410A, use a charging adaptor. • Use Friedrich approved R-410A filter dryers only. WARNING Refrigeration system under high pressure Do not puncture, heat, expose to flame or incinerate. -
Page 20: Sealed Refrigeration System Repairs
R-410A SeAleD RefRIGeRATION SYSTeM RePAIRS SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. EQUIPMENT REQUIRED: 1. Voltmeter 2. Ammeter 3. Ohmmeter 4. E.P.A. Approved Refrigerant Recovery System 5. Vacuum Pump (capable of 200 microns or less vacuum.) 6. - Page 21 Method Of Charging / Repairs The acceptable method for charging the RAC system is the Weighed in Charge Method. The weighed in charge method is applicable to all units. It is the preferred method to use, as it is the most accurate. The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair, compressor replacement, or when there is no refrigerant...
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Page 22: Undercharged Refrigerant Systems
WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. Undercharged Refrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. -
Page 23: Restricted Refrigerant System
Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difficult. The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete restrictions. A partial restriction allows some of the refrigerant to circulate through the system. -
Page 24: Compressor Checks
COMPRESSOR CHECKS WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. - Page 25 Single Phase Resistance Test Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). Touch the leads of the ohmmeter from terminals common to start (“C” to “S”). Next, touch the leads of the ohmmeter from terminals common to run (“C”...
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Page 26: Compressor Replacement
COMPReSSOR RePlACeMeNT Recommended procedure for compressor replacement WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. - Page 27 SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR bURNOUT WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Failure to do so may result in personal injury, or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure.
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Page 28: Routine Maintenance
ROUTINe MAINTeNANCe WARNING ELECTRIC SHOCK HAZARD Turn off electric power before inspections, maintenances, or service. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. -
Page 29: Routine Maintenance
ROUTINe MAINTeNANCe (Continued) NOTICE Do not drill holes in the bottom of the drain pan or the underside of the unit. Not following this notice could result in damage to the unit or condensate water leaking inappropriately which could cause water damage to surrounding property. -
Page 30: Performance Test Data Sheet
DATE: _______________ MODEL:_______________ SERIAL:________________ IS THERE A FRIEDRICH SLEEVE INSTALLED? IS THERE A FRIEDRICH OUTDOOR GRILL INSTALLED? IS MAINTENANCE BEING PERFORMED? If NO is checked use back of sheet for explanation ELECTRICAL: LINE VOLTAGE (STATIC) START UP VOLTAGE AMPERAGE DRAW... -
Page 31: Troubleshooting
Be sure to use exhaust vent fans while cooking or bathing and, if possible, try not to use heat producing appliances during the hottest part of the day. Allow additional time for the air conditioner to cool off a very hot room. - Page 32 Possible Cause Do not try to operate your air conditioner in the cooling mode when the outside temperature is below 60° F (16° C). The unit will not cool properly, and the unit may be damaged.
- Page 33 COOlING ONlY ROOM AIR CONDITIONeRS: TROUBleSHOOTING TIPS Low voltage T-stat not set cold enough or inoperative or electronic control board is bad Compressor hums but cuts off on Compressor overload does not run Open or shorted compressor windings Open overload Open capacitor Inoperative system switch, thermistor or electronic board...
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Page 34: Wiring Diagrams
COOlING ONlY ROOM AIR CONDITIONeRS: TROUBleSHOOTING TIPS Fuse blown or circuit tripped Power cord not plugged in System switch in “OFF” position Unit does not run Inoperative system switch or open electronic control board Loose or disconnected wiring at switch, control board or other com- ponents Dirty fi... - Page 35 Instruct customer of waiting period Check voltage with unit operating. Check for other appliances on circuit. Air conditioner should be in separate circuit for proper voltage & fused separately Refer to appropriate wiring diagram...
- Page 36 COOlING ONlY ROOM AIR CONDITIONeRS: TROUBleSHOOTING TIPS Sublimation: When unconditioned saturated, outside air mixes with conditioned air, condensation forms on the cooler surfaces Water “spitting” into room Downward pitch of installation is too steep towards back of unit Restricted coil or dirty fi lter Insuffi...
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Page 37: Troubleshooting
HeAT / COOl ONlY ROOM AIR CONDITIONeRS: TROUBleSHOOTING TIPS Heat anticipator (resistor) shorted (on applicable models) Room temperature uneven Wide differential - partial loss of t-stat bulb charge Replace t-stat (Heating cycle) Incorrect wiring Opened doors or windows Dirty fi Unit undersized Does not heat adequately... - Page 38 eleCTRONIC CONTROl COOl ONlY MODelS: XQ05M10A XQ06M10A XQ08M10A XQ10M10A...
- Page 39 eleCTROMeCHANICAl CONTROl COOl WITH eleCTRIC HeAT MODel: eQ08M11A...
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Page 40: Instructions For Using Cooling Load Estimate Form
The result is the total estimated design cooling load in BTU per hour. For best results, a room air conditioner unit or units having a cooling capacity rating (determined in accordance with the NEMA Standards Publication for Room Air Conditioners, CN 1-1960) as close as possible to the estimated load should be selected. -
Page 41: Cooling Load Estimate Form
LIGHTS AND ELECTRICAL EQUIPMENT IN USE DOORS AND ARCHES CONTINUOUSLY OPENED TO UNCONDITIONED SPACE: (TOTAL LINEAR FEET OF WIDTH.) SUBTOTAL 10. TOTAL COOLING LOAD (BTU per hour to be used for selection of room air conditioner(s).) FACTORS QUANTITY nside Shades* Shades* ___ _sq. -
Page 42: Heat Load Form
The heat load form on the following page may be used by servicing personnel to determine the heat loss of a conditioned space and the ambient winter design temperatures in which the unit will heat the calculated space. The upper half of the form is for computing the heat loss of the space to be conditioned. - Page 43 70 base point thru the point plotted at 40°F. The intersection of this heat loss line with the unit capacity line represents the winter design heating load. HEATING LOAD FORM FRIEDRICH ROOM UNIT HEAT PUMPS Loose TOTAL HEAT LOSS PER °F BTU/HR/°F BTU/HR PER °F TEMP.
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Page 44: Warranty
ROOM AIR CONDITIONERS ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible for service. Any additional labor cost for removing inaccessible units and/or charges for mileage related to travel by a Service Agency that exceeds 25 miles one way will be the responsibility of the owner. -
Page 45: Technical Assistance
TECHNICAL SUPPORT CONTACT INFORMATION 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 · 877-599-5665 x 846 · FAX (210) 357-4490 Email: tac@friedrich.com www.friedrich.com... - Page 47 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 X-Star-ServMan (4-10) Printed in the U.S.A.