Friedrich WS10B10 manual

WM-Ser vMan (4-10) W allMaster ® R-410A Models 2010 Service Manual 115-V olt: WS08C10A, WS10C10A, WS12C10A 230-V olt: WS10C30A, WS13C30A, WS15C30A Cool Only 115-V olt: WE10C33A, WE13C33A, WE15C33A Cool with Electric Heat 230-V olt: WY09C33A, WY12C33A Heat Pump with Electric Heat Back Up Wa l l M a s t e r Mone y Fa n Timer O perati on Set Hr . Sto[...]

T able Of Contents Important Safety Information ....................................................................................................................2-4 Introduction ..................................................................................................................................................4 WallMaster Model Numb[...]

IMPORT ANT SAFETY INFORMA TION The information contained in this manual is intended for use by a qualied 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 unqualied[...]

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 u[...]

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 specied amperage rating. • Connect to a properly grounded outlet only . • Do not remove ground prong of plug. • Do not cut or mod[...]

5 FRIEDRICH WALLMASTER MODE L NUMBE R CODE W S 08 C 1 0 A 1st DIGIT - FUNCTION W = Thru-The-W all, W allMaster Series 2nd DIGIT - TYPE S = Straight Cool E = Electric Heat Y = Heat Pump 3rd & 4th DIGITS - APPROXIMA TE BTU/HR (Cooling) Heating BTU/HR capacity listed in Specications/Performance Data Section 5th DIGIT - ALPHABETICAL MODIFIER 6th[...]

6 201 0 PERFORMA NCE D A T A Sleev e / Chassis D imension s 27" Sleeve Height (inches) 16 3/4 16 3/4 16 3/4 Width (inches ) 2 7 2 7 2 7 Depth (inches) 16 3/4 16 3/4 16 3/4 Friedrich WSC Sleeve Fedders A Sleeve Fedders B Sleeve* Sleeve Dimensions Widt h M ax. Depth WSD Sleeve 16 3/ 4 2 7 16 3/ 4 2 3 7 1/2 9/16 17 1/4 27 1/ 4 1 5 5/16 Chassis 15[...]

7 Wire Size Use ON L Y wiring size rec ommende d for single outlet br anch circ uit. F use/Circuit B reaker Use ON L Y the corr ect HACR type and size fuse/circuit breaker . Read electr ical rating s on unit ’ s r ating plate. Proper circuit pr otection is t he responsibiit y of the ho meowner . Grounding Unit M UST be grounded f rom branch c irc[...]

6 WA RMER – T ouch t he bu tt on t o r ais e the room a ir t emperature . 7 P ress b oth the and bu tt ons a t the same t ime to switch the temperature from F ahrenheit ( °F) to C elsius ( °C ). R epeat Step 7 to switch from °C back to ° F. To a dj us t f a n s p ee d 8 T ouch t he Fan S peed b ut ton to see t he c ur re nt s et ting. To uch [...]

To s e t t h e t i m e r NOTE : Se t the HOUR C LO CK ( Set Hour ) before a tt empt ing to s et timer f uncti ons. Yo u ca n set the Star t Time and Stop T im e a m inimum of one hour apa rt , and a m ax imum o f 23 hou rs apa rt . 11 Af ter se tt ing the time , press the Set Hour b ut ton on ce ( Star t ligh t on ). Us e t he and e h t t a h t e m[...]

Usin g th e r em ot e c o n tr ol To s ta rt u n i t 1 PO WE R - P ress t he Powe r b ut t on on ce . T he un i t w ill automatic ally star t in th e mod e an d fan s pe ed it w as l ast l eft on. To s e t m o d e o f o p e r at io n 2 CO OL - P ress t he Coo l b ut ton to automatic a lly s wit ch the operat - ing mo de to CO OL . 3 FA N ON LY - P [...]

ELECTR ONIC CONTROL P ANEL ACTIV A TING TEST MODE Act ivate T est Mode b y p r e s s i n g a t t h e s a m e t i m e , t h e Mode button a nd the T emp /Hour button ( see gures 4 and 5). The LEDs for Set /Hour: “ S t a r t T i m e ” and “Stop Time” wi l l blink 1 bps while T e st Mod e is active. T est Mode h as a dur ation of 9 0 minute[...]

ERR OR CODES LISTING FOR “WS” MODELS E 1 SHO RT CY CLE SIT U A TI ON: De n ed as a co mp r es so r th at sta r ts an d st op s mor e fre qu en tly th an it s hou ld ( mo re th a n 6 ti m es pe r h our ). E2 K EY BOARD STUCK ERROR: If an y ke y bu tt on is st uck or p re ss ed fo r 2 0 se co nd s or mo r e , th e u ni t con sid ers i t st uc [...]

13 ELECTR ONIC CONTROL OPERA TION Heat Pump Models If the i ndoor ambie nt air t hemister reads 5 5 d egrees or lower , the co ntrol will turn of f the c ompres sor and turn on th e elec tric heat a nd co ntinue fan operati on until temp sett ing i s s atised. Then rever t to standard heat pump operation. If the c ompress or is time delayed, the[...]

Hea ti ng El emen t HEA TING ELEMENT (“ WE” &”WY ” Mo de ls) All “WE” and “WY” m ode ls ar e eq uip ped wi th a 3.3 KW hea t ing ele me nt. The heating element has two heater limit switches (bimetal thermostats) connected in series with it. The Primary limit located near the bottom, will open the circuit when the temperature rea[...]

Suction Line Evaporator Coil Metering Device Refrigerant Strainer Discharge Line Condenser Coil Compressor Refrigerant Drier Liquid Line 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 d[...]

• 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. • R-410A must never be pressurized with a mixture of air , it may become ammable. • Servicing equipment and components must be specically designed for use with R-410A and dedicated to pre[...]

Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will result in reduced performance (capacity) and/or efciency . Accordingly , the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged. T[...]

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 refrigerant with the property quantity of R-410A refrigerant. 7. Start unit, and verify performance. 8. Crimp the process tube and solder the end shut. Proper safety procedures must be followed, and proper prote[...]

Underchar ged R efrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. Whenever you service a unit with an undercharge of refrigerant, always suspect a leak. The leak must be repaired before charging the unit. T o check for an undercharged system, turn the unit on, allo[...]

R estricted Refrigerant System T roubleshooting a restricted refrigerant system can be difcult. 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 t[...]

METERING DEVICE Capillar y T ube Systems All units are equipped with capillary tube metering devices. Checking for restricted capillary tubes. 1. Connect pressure gauges to unit. 2. Start the unit in the cooling mode. If after a few minutes of operation the pressures are normal, the check valve and the cooling capillary are not restricted. 3. Switc[...]

NOTE: System operating pressures must be near normal before valve can shift . REVERSING V AL VE DESCRIPTION/OPERA TION The Reversing V alve controls the direction of refrigerant ow to the indoor and outdoor coils. It consists of a pressure- operated, main valve and a pilot valve actuated by a solenoid plunger . The solenoid is energized during t[...]

Reversing V alve in Heating Mode TESTING THE COIL The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized during the operation of the compressor in the heating cycle. 1. T urn off high voltage electrical power to unit. 2. Unplug line voltage lead from reversing valve coil. 3. Check for electrical continuity[...]

8. Pressurize sealed system with a combination of R-22 and nitrogen and check for leaks, using a suitable leak detector . Recover refrigerant per EP A guidelines. 9. Once the sealed system is leak free, install solenoid coil on new valve and charge the sealed system by weighing in the proper amount and type of refrigerant as shown on rating plate. [...]

Lock ed Rotor V olta ge (L.R.V .) T est Locked rotor voltage (L.R.V .) is the actual voltage available at the compressor under a stalled condition. Single Phase Connections Disconnect power from unit. Using a voltmeter , attach one lead of the meter to the run “R” terminal on the compressor and the other lead to the common “C” terminal of t[...]

Single Phase Resistance T est Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). T ouch 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” to “R”). Add values “C” to “S” and “C” to “[...]

R ecommended pr ocedure for compr essor replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. 2. Recover all refrigerant from the system though the process tubes. PROPER HANDLING OF RECOVERED REFRIGERANT ACCORDING TO EP A REGULA TIONS IS REQUIRED. Do n[...]

1. 2. 3. 4. 5. ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before service or installation. Failure to do so may result in personal injury , or death. S e al ed R e f ri ge r a t io n S y s te m c o n t ai ns r e f ri ge r a n t and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be[...]

R OUTINE MAINTENANCE AIR FIL TER Clean the unit air intake lter at least every 300 to 350 hours of operation. Clean the lters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. COILS AND BASE P AN The indoor coil (evaporator coil), the outdoor coil (condenser coil) and base pan should be inspected periodicall[...]

SLEEVE / DRAIN Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both areas with an antibacterial and antifungal cleaner . Rinse both items thoroughly with water and ensure that the drain outlets are operating correctly . Check the sealant around the sleeve and reseal are[...]

ROOM AIR CONDITIONER UNIT PERFORMANCE TEST D A T A SHEET DA TE: _______________ MODEL:_______________ SERIAL:________________ YES NO IS THERE A FRIEDRICH SLEEVE INST ALLED? ____ ____ IS THERE A FRIEDRICH OUTDOOR GRILL INST ALLED? ____ ____ IS MAINTENANCE BEING PERFORMED? ____ ____ If NO is checked use back of sheet for explanation ELECTRICAL: LINE [...]

Problem Possible Cause Possible Solution Unit does not operate. The unit is turned to the off position, T urn the unit to the on position and raise or lower temperature setting (as appropriate) to call for operation. The LCDI power cord is unplugged. Plug into a properly grounded 3 prong receptacle. See “Electrical Rating T ables” on pg. 6 for [...]

33 Problem Possible Cause Possible Solution Unit Does Not Cool/Heat On And Off T oo Frequently (continued). The outside temperature is below 60° F (16° C). 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. The digital[...]

34 COOLING ONL Y ROOM AIR CONDITIONERS: TROUBLESHOO TING TIPS e s u a C e l b i s s o P m e l b o r P Compressor does not run Low voltage Check voltage at compressor . 1 15V & 230V units will operate at 10% voltage variance Temperature not set cold enough or room air thermistor inoperative Set temperature to lower than ambient temperature. T es[...]

35 COOLING ONL Y ROOM AIR CONDITIONERS: TROUBLESHOO TING TIPS e s u a C e l b i s s o P m e l b o r P Compressor runs for short periods only . Cycles on overload Overload inoperative. Opens too soon Check operation of unit. Replace overload if system operation is satisfactory Compressor restarted before system pressures equalized Control board’s [...]

36 COOLING ONL Y ROOM AIR CONDITIONERS: TROUBLESHOO TING TIPS Possible Action e s u a C e l b i s s o P m e l b o r P W ater “spitting” into room Sublimation: When unconditioned saturated, outside air mixes with conditioned air , condensation forms on the cooler surfaces Ensure that foam gaskets are installed in between window panes & in be[...]

37 HEA T/COOL ONL Y ROOM AIR CONDITIONERS: TROUBLESHOO TING TIPS Possible Solution Possible Solution Possible Solution e s u a C e l b i s s o P m e l b o r P Room temperature uneven (Heating cycle) Bad indoor ambient thermistor Check error codes. Replace if needed. Close doors, windows, etc. Opened doors, windows, etc. e s u a C e l b i s s o P m [...]

38 HEA T PUMP TROUBLESHOO TING Possible Solution Possible Solution e s u a C e l b i s s o P m e l b o r P Unit cools when heat is called for Incorrect wiring Refer to applicable wiring diagram Defective solenoid coil Check for continuity of coil Reversing valve fails to shift Block condenser coil & switch unit to cooling. Allow pressure to bui[...]

REFRIGERANT SYSTEM DIAGNOSIS COOLING REFRIGERANT SYSTEM DIAGNOSIS HEA TING Low Load Conditions High Load Conditions Low Load Conditions High Load Conditions Low Air Flow Across High Air Flow Across Refrigerant System Low Air Flow Across Indoor Coil Indoor Coil Restriction Outdoor Coil Refrigerant System Rev ersing V alv e not Reversing V alve not O[...]

HEA T PUMP SYSTEM COOLS WHEN HEA TING IS DESIRED. Is Line V oltage Present at the Solenoid V alve? Is the Selector Switch Set for Heat? NO YES Is the Solenoid Coil Good? Replace the Solenoid Coil NO YES Reversing V alve Stuck Replace the Reversing V alve ELECTRICAL TR OUBLESHOO TING CHART - HEA T PUMP ELECTRIC SHOCK HAZARD W ARNING T urn off electr[...]

DISCHARGE TUBE SUCTION TUBE to T ube to OUTSIDE from Compressor T ube to INSIDE Capillary T ube Capillary T ube Compressor RIGHT Pilot LEFT Pilot COIL COIL 14 NORMAL FUNCTION OF V AL VE V AL VE OPERA TING DISCHARGE TUBE from Compressor SUCTION TUBE to Compressor Tube to INSIDE COIL Tube to OUTSIDE COIL LEFT Pilot Capillary Tube RIGHT Pilot Capillar[...]

WALLMASTER WIRING DIA GRAM ELECTR ONIC CONTROL COOL ONL Y MODELS 42[...]

WALLMASTER WIRING DIA GRAM ELECTR ONIC CONTROL COOL WITH ELECTRIC HEA T MODELS 43[...]

WALLMASTER WIRING DIA GRAM ELECTR ONIC CONTROL HEA T PUMP WITH ELECTRIC HEA T MODELS 44[...]

Installa tion Accessories 45 DK / Drain Ki t In st alle d at the ba ck of the unit and allows for at tachme nt to pe rmanen t co ndensa te disp os al sy st em, if disp os al is ne ce ssar y or desi re d. SB / Sub Base Us ed as a base for the unit when it is desi re d to plac e the co rd and re ce ptacle within the in st allation, or simp ly as a ba[...]

FIGURE 1 MINIMUM OF 24” REQUIRED FROM TOP OF UNIT TO CEILING. INSIDE W ALL MINIMUM OF 1” SP ACING REQUIRED ON ALL SIDES OF LINTELS WSD SLEEVE DRAIN EXTENSION THE UNIT . 7/8” MINIMUM 1” MINIMUM 3 1/2” FOR SUBBASE 9/16” MINIMUM OUTSIDE W ALL INST ALLA TION INSTRUCTIONS FOR “WSD” SLEEVE MOUNTING HARDW ARE PROVIDED W ALL PREP ARA TION: [...]

FIGURE 2 BACK UNIT REST LEVEL FRONT UNIT REST RAISED LEDGE INST ALLA TION REQUIREMENTS: STEP 1 The “WSD” SLEEVE should be positioned so that the DRAIN EXTENSION extends a minimum of 9/16” beyond the OUTSIDE W ALL (See Figure 1). STEP 2 The “WSD” SLEEVE must extend a minimum of 7/8” beyond the INSIDE W ALL. STEP 3 The “WSD” SLEEVE mu[...]

MECHANICAL HAZARD W ARNING Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to do so could result in serious injury . CUT/SEVER HAZARD 48 INST ALLA TION INSTRUCTIONS FOR BAFFLE ADAPTER KIT (BAK)[...]

FIGURE A AIR DISCHARGE PLENUM FIGURE B SIDE PROFILE OF W ALL SLEEVE RAISED LEDGE GASKET FRONT UNIT REST Remove the black rubber gasket from the air discharge plenum of the air conditioner (see fi g. A). Look inside the wall sleeve and check to see if a black rubber gasket is already in place along the bottom front (see fi g. B). If one is not in [...]

INST ALLA TION INSTRUCTIONS FOR INTERNAL DRAIN KIT (IDK) Apply Sealer to the bottom of the Drain Plate Drill a .625” diameter hole here Dimple W all Sleeve Sleeve Base 0.5” In from edge 4.75” From back of basepan Drill a .625” diameter hole in the bottom of the basepan 1. DRILL A .625” DIAMETER HOLE IN THE BOTTOM OF THE SLEEVE BASE TO THE[...]

MECHANICAL HAZARD W ARNING Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to do so could result in serious injury . CUT/SEVER HAZARD EXCESSIVE WEIGHT HAZARD W ARNING Use two people to lift or carry the unit, and wear proper protective clothing. Failure to do so may result in serious personal injury . [...]

52 D D 52 MECHANICAL HAZARD W ARNING Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to do so could result in serious injury . CUT/SEVER HAZARD INST ALLA TION INSTRUCTIONS SUBBASE FOR WS, WE & WY MODELS[...]

53 D D D 53 MECHANICAL HAZARD W ARNING Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to do so could result in serious injury . CUT/SEVER HAZARD INST ALLA TION INSTRUCTIONS ARCHITECTURAL GRILLE MODEL AG[...]

54 54 MECHANICAL HAZARD W ARNING Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to do so could result in serious injury . CUT/SEVER HAZARD[...]

55 Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www.fri edrich.com WALLMASTER £ THRU-THE-WALL AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR A NY 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 repai[...]

FRIEDRICH AIR CONDITIONING CO . Post Ofce Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · 877-599-5665 x 846 · F AX (210) 357-4490 Email: tac@friedrich.com www .friedrich.com Printed in the U.S.A. TECHNICAL SUPPORT CONT ACT INFORMA TION 56[...]

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FRIEDRICH AIR CONDITIONING CO . Post Ofce Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · F AX (210) 357-4490 www .friedrich.com Printed in the U.S.A. WM-ServMan (4-10)[...]