Friedrich WALLMASTER WS10B10 User Manual

WM-ServMan (4-10)WallMaster® R-410A Models 2010Service Manual115-Volt: WS08C10A, WS10C10A, WS12C10A230-Volt: WS10C30A, WS13C30A, WS15C30ACool Only

To set the timerNOTE: Set the HOUR CLOCK (Set Hour) before attempting to set timer functions.You can set the Start Time and Stop Time a minimum of on

Using the remote controlTo start unit1 POWER - Press the Power button once. The unit will automaticallystart in the mode and fan speed it was last lef

ELECTRONIC CONTROL PANELACTIVATING TEST MODEActivate Test Mode by pressing at the same time, the Mode button and the Temp/Hour button (see gures

ERROR CODES LISTING FOR “WS” MODELS E1 SHORT CYCLE SITUATION: Dened as a compressor that starts and stops more frequently than it should (more

13ELECTRONIC CONTROLOPERATIONHeat Pump ModelsIf the indoor ambient air themister reads 55 degrees or lower, the control will turn off t

Heating ElementHEATING ELEMENT(“WE” &”WY” Models)All “WE” and “WY” models are equipped with a 3.3 KW heating element.The heating element has two h

Suction Line Evaporator Coil Metering Device Refrigerant Strainer Discharge Line Condenser Coil Compressor Refrigerant Drier Liquid Line A

• R-410A pressure is approximately 60% higher than R-22 pressure.• R-410A cylinders must not be allowed to exceed 125 F, they may leak or rupture.•

Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will result in reduced performan

18 3. Install a process tube to sealed system. 4. Make necessary repairs to system. 5. Evacuate system to 200 microns or less. 6. Weigh in refr

Table Of Contents Important Safety Information ...

Undercharged Refrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cool

Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difcult. The following procedures are the more common prob

METERING DEVICE Capillary Tube Systems All units are equipped with capillary tube metering devices. Checking for restricted capillary tubes. 1.

NOTE: System operating pressures must be near normal before valve can shift. REVERSING VALVE DESCRIPTION/OPERATION The Reversing Valve controls

Reversing Valve in Heating Mode TESTING THE COIL The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized d

8. Pressurize sealed system with a combination of R-22 and nitrogen and check for leaks, using a suitable leak detector. Recover refri

Locked Rotor Voltage (L.R.V.) Test Locked rotor voltage (L.R.V.) is the actual voltage available at the compressor under a stalled condition. Single P

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

Recommended procedure for compressor replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure

1.2.3.4.5.ELECTRIC SHOCK HAZARD WARNINGTurn off electric power before service or installation.Failure to do so may result in personal injury, or death

IMPORTANT SAFETY INFORMATIONThe information contained in this manual is intended for use by a qualied service technician wh

ROUTINE MAINTENANCE AIR FILTER Clean the unit air intake lter at least every 300 to 350 hours of operation. Clean the lters with a mild detergent i

SLEEVE / DRAIN Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both a

ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEETDATE: _______________ MODEL:_______________ SERIAL:________________ YES

Problem Possible Cause Possible SolutionUnit does not operate. The unit is turned to the off position, Turn the unit to the on position and raise or

33Problem Possible Cause Possible SolutionUnit Does Not Cool/Heat On And Off Too Frequently (continued). The outside temperature is below 60° F (16° C

34COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS esuaC elbissoP melborPCompressordoes not run Low voltage Check voltage at compressor.

35COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS esuaC elbissoP melborPCompressor runs for short periods only. Cycles on overloadOverl

36COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Possible Action esuaC elbissoP melborPWater “spitting” into room Sublimation:When uncon

37HEAT/COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Possible SolutionPossible SolutionPossible Solution esuaC elbissoP melborPRoom tempera

38HEAT PUMP TROUBLESHOOTINGPossible SolutionPossible Solution esuaC elbissoP melborPUnit cools when heat is called for Incorrect wiring Refer to a

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 co

REFRIGERANT SYSTEM DIAGNOSIS COOLINGREFRIGERANT SYSTEM DIAGNOSIS HEATING Low Load Conditions High Load Conditions Low Load Conditions High L

HEAT PUMP SYSTEM COOLS WHEN HEATING IS DESIRED. Is Line Voltage Present at the Solenoid Valve? Is the Selector Switch Set for Heat? NO YES Is t

DISCHARGE TUBE SUCTION TUBE to Tube to OUTSIDE from Compressor Tube to INSIDE Capillary Tube Capillary Tube CompressorRIGHT Pilot LEFT Pilot

WALLMASTER WIRING DIAGRAMELECTRONIC CONTROLCOOL ONLY MODELS42

WALLMASTER WIRING DIAGRAMELECTRONIC CONTROLCOOL WITH ELECTRIC HEAT MODELS 43

WALLMASTER WIRING DIAGRAMELECTRONIC CONTROLHEAT PUMP WITH ELECTRIC HEAT MODELS 44

Installation Accessories 45DK / Drain KitInstalled at the back of the unit and allows for attachment to permanent condensate disposal system, if di

FIGURE 1MINIMUM OF 24” REQUIREDFROM TOP OF UNIT TO CEILING. INSIDEWALL MINIMUM OF 1”SPACING REQUIRED ON ALL SIDES OF LINTELSWSD SLEEVE DRAINEXTENS

FIGURE 2 BACK UNIT RESTLEVEL FRONT UNIT RESTRAISED LEDGEINSTALLATION REQUIREMENTS: STEP 1 The “WSD” SLEEVE should be positioned so that the DRAIN EXT

MECHANICAL HAZARD WARNINGBe careful with the sharp edges and corners. Wear protective clothing and gloves, etc.Failure to do so could result in seriou

PROPERTY DAMAGE HAZARDSFIRE DAMAGE HAZARDS:Read the Installation/Operation Manual for this air conditioning unit prior to operating.•Use air conditio

FIGURE A AIR DISCHARGE PLENUM FIGURE B SIDE PROFILEOF WALL SLEEVE RAISED LEDGE GASKET FRONT UNIT REST Remove the black rubber gasket from the ai

INSTALLATION INSTRUCTIONS FOR INTERNAL DRAIN KIT (IDK)Apply Sealer tothe bottom ofthe Drain Plate Drill a .625”diameterhole here DimpleWall Sleeve Sl

MECHANICAL HAZARD WARNINGBe careful with the sharp edges and corners. Wear protective clothing and gloves, etc.Failure to do so could result in seriou

52DD52MECHANICAL HAZARD WARNINGBe careful with the sharp edges and corners. Wear protective clothing and gloves, etc.Failure to do so could result in

53DDD53MECHANICAL HAZARD WARNINGBe careful with the sharp edges and corners. Wear protective clothing and gloves, etc.Failure to do so could result in

5454MECHANICAL HAZARD WARNINGBe careful with the sharp edges and corners. Wear protective clothing and gloves, etc.Failure to do so could result in se

55Friedrich Air Conditioning Company P.O. Box 1540San Antonio, TX 78295 210.357.4400www.friedrich.comWALLMASTER£THRU-THE-WALL AIR CONDITIONERS LIMITED

FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 35

NOTES

NOTES

5FRIEDRICH WALLMASTER MODEL NUMBER CODE W S 08 C 1 0 A1st DIGIT - FUNCTION W = Thru-The-Wall, WallMaster Series2nd DIGIT - TYPE S = Straight

FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 35

62010 PERFORMANCE DATASleeve / Chassis Dimensions27" SleeveHeight (inches) 16 3/4 16 3/4 16 3/4Width (inches)272727Depth (inches) 16 3/4 16 3/4 1

7Wire Size Use ONLY wiring size recommended for single outlet branch circuit.Fuse/Circuit Breaker Use ONLY the correct HACR type and size fuse/cir

6 WARMER – Touch the button to raise the room air temperature.7 Press both the and buttons at the same time to switch the temperature from Fa