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Temperature
Cooler Warmer
Power
Cool Heat
Fan Fan Money
®
Only Speed Saver
Timer Operation
Start Stop Set Hr.
2010
Thru-the-wall
Air Conditioners and Heat Pumps
®
WallMaster R-410A Models
Cool Only
115-Volt: WS08C10A, WS10C10A, WS12C10A
230-Volt: WS10C30A, WS13C30A, WS15C30A
Cool with Electric Heat
115-Volt: WE10C33A, WE13C33A, WE15C33A
Heat Pump with Electric Heat Back Up
230-Volt: WY09C33A, WY12C33A
WM-ServMan (4-10)
WallMaster
Service Manual
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Table Of Contents Important Safety Information ....................................................................................................................2-4 Introduction ..................................................................................................................................................4 WallMaster Model Number Code and Serial Number Identification ............................................................5 Performance Data / Sleeve and Chassis Dimens
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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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Rotate 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 prope
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FRIEDRICH wAll MAsTER MODEl NUMBER CODE W S 08 C 1 0 A 1st DIGIT - FUNCTION W = Thru-The-Wall, WallMaster Series 2nd DIGIT - TYPE S = Straight Cool E = Electric Heat Y = Heat Pump 3rd & 4th DIGITS - APPROXIMATE BTU/HR (Cooling) Heating BTU/HR capacity listed in Specifications/Performance Data Section 5th DIGIT - ALPHABETICAL MODIFIER 6th DIGIT - VOLTAGE 1 = 115 Volts 3 = 230-208 Volts 7th DIGIT 0 = Straight Cool & Heat Pump Models 3 = 3 KW Heat Strip, Nominal 8th DIGIT Major Change
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2010 PERFORMANCE DATA EVAPORATOR AIR TEMP. EVAPORATOR TEMP. OPERATING BREAKER COOLING ELECTRICAL RATINGS R410A CONDENSER DEG. F DEG. F Suction Liquid Super Sub- PRESSURES Evap Motor FUSE Discharge PERFORMANCE TEMPERATURE Temp Temp. Drop Temp Temp Heat Cooling Amps Amps Locked Charge in CFM RPM 60 Hertz DATA* Discharge Air T(in) T(out) DEG. F Suction Discharge F. Cool Heat Rotor Amps OZ. Amps WS08C10A 57 23 55 60 129 167 65 98 11 31 154 462 7.1 32.0 32.5 257 1085 15 WS10C10
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El ECTRICAl 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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ElECTRONIC CONTROl OPERATION PM PM 1 Power Power 2 3 4 8 Cool Cool Smart Fan Fan 9 Fan Only ® 6 Money Saver Speed Mode Fan Speed Mode Heat Fan Only 7 Clock Clock 5 Money Timer Set Start Time Timer Set Start Time 14 Saver On/Off Hour On/Off Hour Stop Time Stop Time 13 Temp/Hour Temp/Hour 10 11 12 Figure 2: WY/WE Model heat-cool control panel F Figure 1: WS Model cool-only control panel igure 1: WS Model cool-only control panel Figure 2: WY/WE Model heat-cool control panel To start unit If th
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To set the timer NOTE: Set the HOUR CLOCK (Set Hour) before attempting to set timer functions. You can set the Start Time and Stop Time a minimum of one hour apart, and a maximum of 23 hours apart. 11 After setting the time, press the Set Hour button once (Start light on). Use the and buttons to select the time that the unit will START. 12 After selecting the Start Time, press the Set Hour button once. (Stop Light on). Use the and buttons to select the time that the unit
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Temperature Cooler Warmer Power Cool Heat Fan Fan Money ® Only Speed Saver Timer Operation On/Off Start Stop Set Hr. Figure3 WY/WEheat-coolmodelremotecontrol Using the remote control To start unit To set the hour clock 9 1 POWER - Press the Power button once. The unit will automatically SET HOUR CLOCK - Press the Set Hr. button once to see the start in the mode and fan speed it was last left on. current clock setting. Continue pressing the button until you arrive at the current time (Hour
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ElECTRONIC CONTROl PANEl PM PM 1 Power Power 2 3 4 8 Cool Cool Smart Fan Fan 9 Fan Only ® 6 Money Saver Speed Mode Fan Speed Mode Heat Fan Only 7 Clock Clock 5 Money Timer Set Start Time Timer Set Start Time 14 Saver On/Off Hour On/Off Hour Stop Time Stop Time Temp/Hour 13 Temp/Hour 10 11 12 Figure 4: “WS” Cooling only models Figure 5: “WE”/”WY” heat/cool models Electronic Control Panel Electronic Control Panel Exiting Error Code Mode: press the Timer On/Off TESTING THE ELECTRONIC CONTROL but
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ERROR CODEs lIsTING FOR “ws” MODEls E1 SHORT CYCLE SITUATION: Defined as a E4 FROST PROBE SHORT: Normal operation is compressor that starts and stops more frequently allowed. Replace probe. than it should (more than 6 times per hour). E5 INDOOR PROBE OPEN: Control assumes E2 KEYBOARD STUCK ERROR: If any key button indoor ambient temperature is 90 degrees F and is stuck or pressed for 20 seconds or more, the unit will operate. Replace probe. unit considers it stuck. If a key is stuck it wi
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COMPONENTs TEsTING ElECTRONIC CONTROl OPERATION WARNING Heat Pump Models ELECTRIC SHOCK HAZARD If the indoor ambient air themister reads 55 degrees or Disconnect power to the unit before lower, the control will turn off the compressor and turn servicing. Failure to follow this warning on the electric heat and continue fan operation until temp could result in serious injury or death. setting is satisfied. Then revert to standard heat pump operation. FAN MOTOR A single phase permanent split
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COMPONENTs TEsTING (Continued) CAPACITORs HEATING ELEMENT WARNING (“WE” &”WY” Models) ELECTRIC SHOCK HAZARD All “WE” and “WY” models are equipped with a 3.3 KW Turn off electric power before servicing. heating element. Discharge capacitor with a 20,000 Ohm 2 Watt resistor before handling. The heating element has two heater limit switches (bimetal thermostats) connected in series with it. The Failure to do so may result in personal injury, Primary limit located near the bottom, will open
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REFRIGERATION sYsTEM 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 pre
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R-410A sEAlED sY sTEM 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 wi
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R-410A sEAlED REFRIGERATION sY sTEM REPAIRs IMPORTANT SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION 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.
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Method Of Charging / Repairs The acceptable method for charging the WallMaster 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 charge left in the unit. To charge by this method, requires the following steps
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WARNING WARNING HIGH PRESSURE HAZARD ELECTRIC SHOCK HAZARD Turn off electric power before service or Sealed Refrigeration System contains refrigerant installation. and oil under high pressure. Extreme care must be used, if it becomes Proper safety procedures must be followed, necessary to work on equipment with power and proper protective clothing must be worn applied. when working with refrigerants. Failure to do so could result in serious injury or Failure to follow these procedures c
