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Temperature
Cooler Warmer
Cool
Power
Fan Fan Money
®
Only Speed Saver
Timer Operation
On/Off Start Stop SetHr.
Service Manual
Models
2009
®
WallMaster Thru-the-Wall
2008
WM-ServMan (04-09)
F
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H Hi t Hioo r r oo r
M O D E TEM P E R AT U R E
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an
O nly
L w L w
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Me ea d M C edl
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Wa h ee m nu es bef e es a ng
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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 · FAX (210) 357-4490 www.friedrich.com Printed in the U.S.A.
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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 B 1 0 B 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 ELECTRIC HEAT MODELS 3 = 3 KW Heat Strip, Nomina
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2008 / 2009 PERFORMANCE DATA EVAPORATOR AIR EVAPORATOR TEMP. OPERATING BREAKER ELECTRICAL RATINGS R-22 REF. COOLING TEMP. DEG. F DEG. F CONDENSER PRESSURES FUSE Discharge Suction Liquid Sub- Evap Motor PERFORMANCE TEMPERATURE Super Heat Temp Temp Temp Cooling CFM RPM Discharge Temp. Locked Rotor Charge in 60 Hertz DATA* T(in) T(out) DEG. F Suction Discharge Amps Cool Amps Heat Air Drop F. Amps OZ. Amps WS08B10A-D 55 25 55 55 127 165 61 102 18 25 87 281 7.1 36.2 20.5 257 1100 15 WS08B10A-F 55
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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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FUNCTIONAL COMPONENTS A. Mechanical components Drain pan valve Temperature-sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40°F and closes when the outside temperature reaches 60°F Plenum assembly y Diffuser with directional louvers used to direct the conditioned air flow. 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 conditione
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How to operate the Friedrich WallMaster 1 Power 2 3 4 8 Cool Fan Smart 9 Fan Only Mode 6 Fan Speed Heat 7 Clock 5 Money Timer Start Time 14 Set Saver On/Off Stop Time 13 Temp/Hour 10 11 12 Figure 1: WS Model cool-only control panel Figure 2: WY/WE Model heat-cool control panel To start unit 6 WARMER – Touch the button to raise the room air temperature . If your air conditioner is installed and plugged into a proper rec ep t
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To set the timer NOTE: If the unit is unplugged or the power is interrupted, the HOUR NOTE: Set the HOUR CLOCK (Set Hour) before attempting to set must be reset or the Timer On/Off will not function when desired. timer functions. You can set the Start Time and Stop Time a minimum of one hour To Activate Money Saver (WY/WE models) apart, and a maximum of 23 hours apart. 14 Press the Money Saver button to activate the Money Saver 11 After setting the time, press the Set Hour button once (Sta
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Figure 3: WY/WE heat-cool model remote control Figure 4: WS Models Only Additional RC1 wireless remote controls can be purchased from your Friedrich dealer. Additional RC1 wireless remote controls can be purchased from your Friedrich dealer. 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 cl
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ElECTRONIC CONTROl PANEl Figure 5: “WS” Cooling only models Figure 6: “WE”/”WY” heat/cool models Electronic Control Panel Electronic Control Panel PM 72 Power Cool Fan ® Money Saver Speed Mode Fan Only Clock Timer Set Start Time On/Off Hour Stop Time Temp/Hour TESTING THE ELECTRONIC CONTROL CHECKING ROOM TEMPERATURE The LEDs for Set/Hour: “Start Time” and “Stop Time” will blink 1 bps while Test Mode is active. 1. Check the room temperature at the electronic control pad by pressing at the sam
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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. 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. Ohm indoor probe. Replace unit considers it stuck. If a key is stuck it will be probe if Oh
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Figure 7: System Control Panel FOR UNITS WITH ROTARY CONTROLS SYSTEM CONTROL SWITCH (“WE” & “WY” Models) An eight position switch is used to regulate the operation of the fan motor, compressor and electric heater. The unit can be operated in cooling or heating mode with the compressor or electric heater on and the fan motor Fan Off Only operating on low, medium or high speed. Low Low Heat Cool The fan motor can also be operated independently on Med Med medium speed. See swi
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ElECTRONIC CONTROl OPERATION Figure 9 : Thermostat Heat Pump w/back up Electric Heat If the indoor ambient air themister reads 55 degrees, turn off the compressor and turn on the electric heat and continue fan operation until temp setting is satisfied. Then revert to standard heat pump operation. If the compressor is time delayed: 1. Turn on the electric heat until the compressor is not time delayed. 2. When the compressor’s 3 minute time delay is over, THERMOSTAT ADJUSTMENT
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CAPACITORS DEFROST THERMOSTAT WARNING (“WY” Electromechanical Control Models Only) ELECTRIC SHOCK HAZARD This thermostat is a single pole - double throw with con- Turn off electric power before servicing. tacts between terminal “2” and “3” closing on temperature Discharge capacitor with a 20,000 Ohm 2 Watt rise and contacts between terminals “2” and “1” closing resistor before handling. on temperature fall. When the contacts between terminals “2” and “3” open, power to the compressor is in
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HEATING ELEMENT (“WE” &”WY” Electronic and Electromechanical Models) All “WE” and “WY” models are equipped with a 3.3 KW heating element. The heating element has two heater limit switches (bimetal thermostats) connected in series with it. The number 1 limit located near the bottom, will open the circuit when the temperature reaches 130°F +/-5°. The number 2 is a high limit switch near the top of the element. It is designed to open the circuit at 165°F +/-8°. Should the fan motor fail or fi
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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
