Friedrich 2007 manual

Ser vice Manual Room Air Conditioners RAC-Svc-07 (4-07) 2007 M o n e y F a n Timer Operation S e t H r . S to p S ta r t Temperatur e F a n C o o l O n /O ff Power C o o le r O n ly S p e e d S a v e r ® W a r m e r[...]

2 T ABLE OF C ONTEN TS Introducti on / T y pical Unit C omponents ....................................................................................................................................... 3 Warranty ...................................................................................................................... ..................[...]

3 INT R ODU CT ION Th is se r vi ce m a n u a l i s d e si g n e d t o b e u se d i n co n j u n c ti o n w i th t h e i n s ta l l a t i o n m an u a l s pr o vi d ed w i t h ea ch a ir co n d i ti o n i n g syst em c om po ne nt . This ser vic e manual was wr it ten to assist t he professional R A C serv ice tec hnician to quick ly and ac curatel[...]

4 Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www.fri edri ch.c om ROOM 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 repair the product at no ch[...]

5 R OU TINE MAIN TENAN C E NOT E : Un its are to be inspect ed and ser viced b y quali fi ed ser vice personnel only . Inspect the indoor blower housing, evap orator blade , condenser fan blade, and c o ndenser shroud perio dically (yearly or bi-yearly) and clean of all debris (lint, dir t, mold, fungus, etc. ) Clean t he blower housing area and b[...]

6 UNIT IDENTIFIC A TION Model N umber Code S S 08 L 1 0 A Serial Number Decade Manufactured L=0 C=3 F=6 J=9 A=1 D=4 G=7 B=2 E=5 H=8 Y ear Manufactured A=1 D=4 G=7 K=0 B=2 E=5 H=8 C=3 F=6 J=9 Month Manufactured A=Jan D=Apr G=Jul K=Oct B=Feb E=May H=Aug L=Nov C=Mar F=Jun J=Sept M=Dec L C G R 00001 Production Run Number Product Line R = RAC P = PT AC [...]

7 PER F O R M A N CE DA T A PERFORMANCE DA T A* Cooling EV AP . AIR TEMP . DEG. F CONDENSER TEMPERA TURE DEG. F Discharge Te m p Suction Te m p Super Heat Sub- Cooling OPERA TING PRESSURES ELECTRICAL RA TINGS R-22 REF . V oltage BREAKER FUSE Discharge Air T emp. Drop F . Suction Discharge Amps Cool Amps Heat Locked Rotor Amps Charge in OZ. 60 Hertz[...]

8 Wire Size Use O NL Y wir ing size recommended for single outlet branch circuit. F use/Circuit Use ONL Y ty pe and size fuse or HACR Bre ak er circuit breaker indicated on unit ’ s rating plate . Proper current protection to the unit is the responsibilit y of the ow ner . G r o u n d i n g U n i t M U S T b e g r o u n d e d f r o m b r a n c h [...]

9 MEC HANIC AL C OMPONEN TS Bellows condensate valv e T e m p e r a t u r e- s e n s i t i v e v a l v e that opens up to drain of f c ondensate water when the out side temperature falls below 40°F and c loses w hen the out side temperature reaches 58 °F . Ve n t d o o r A l l o w s i n t r o d u c t i o n o f f r e s h a i r i n t o t h e r o o [...]

10 ELE CTR ONIC CONTR OLS IMPORT ANT : Error C odes are c leared from t he log by e xiting f rom Error Co de Mode. T o exit on X Q models, pres s Timer On /Of f button. T o exit QME models, pres s A /C Star t and On /O f f but tons. Or unplug unit to exit Err or Co de Mo de. Plug unit in af ter 5 seconds to resume nor mal operation of unit. TESTING[...]

11 IMPORT ANT AN Y SE A LED S Y S TEM REP A IRS TO COOL - ON L Y MOD ELS REQUIRE THE I NST ALL A TI ON OF A L I Q U I D L I N E D R I E R . A L S O , A N Y S E A L E D S Y S T E M R E P A I R S T O H E AT P U M P M O D E L S R E Q U I R E T H E INST A LL A TIO N OF A SUCTIO N LINE D RIER . the liquid refrigerant leaves the metering device entering [...]

12 EQUIP MENT RE QUIRED 1. Vo l t m e t e r 2. Ammeter 3. Ohmmeter 4. E. P . A . A pp rove d Ref r i ger ant Rec ove r y Sy ste m. 5. V acuum Pump ( capable of 20 0 mic rons or less vacuum. ) 6. Acet ylene Welder 7 . Electronic Halogen Leak Detector (G.E. T y pe H - 6 or equiva lent. ) 8. Ac curate refrigerant charge measur ing device such as: a. B[...]

13 NOTE : I n o r d e r to ac c e s s t h e s e a l e d s y st e m i t w i l l b e n e c e s s ar y t o i ns t a l l S c h r a d e r t y p e fi tt ings to the proces s tubes on the discharge and suct ion of the c ompres sor . Proper refr igerant recover y proc edure s need to be adhered to as outlined in EP A R egulations. THIS SHO ULD O NL Y B E [...]

14 A n u n d e r c h a r g e d s y s t e m w i l l r e s u l t i n p o o r p e r f o r m a n c e ( l o w pressures, etc. ) in both the heating and c ooling cycle. Whenever you servic e a unit wit h an under char ge o f refrigerant, always suspect a leak. The leak must be repaired before charging the unit. T o check for an undercharged sy stem, turn[...]

15 A quick check for eit her condit ion begins at the evaporat or . With a par tial restric tion, there may be gurgling sounds at the metering device entrance to the e vaporator . The e vaporator in a par tial rest ric tion c ould be par t ially frosted or have an ice ball close to the entranc e of the metering device. Frost ma y continue on t he s[...]

16 NORMAL F UNC TION OF V AL VE VA LV E OPERA TIN G COND ITI ON DISCHARGE TUBE from Com presso r SUCT IO N TU BE to Compr essor Tu b e t o I N S I D E COIL Tu b e t o O U T S I D E COIL LEFT Pilot Capillary T ube RIGHT Pilot Capillary T ube NO TES : * TEM PER A TURE O F V AL V E BODY ** WA RM ER TH AN VAL VE BO DY 1 2 3 4 5 6 POSSIBL E C A U SE S C[...]

17 COOL IN G ONL Y R OOM AIR C ONDITIONER S : TROUB L E S HOO TIN G TIP S Problem Possible Cause Action Compressor does not run Low voltage Check voltage at compressor . 1 15V & 230V units will operate at 10% voltage variance T -stat not set cold enough or inoperative Set t-stat to coldest position. T est t-stat & replace if inoperative Com[...]

18 Problem Possible Cause Action Unit does not run Fuse blown or circuit tripped Replace fuse, reset breaker . If repeats, check fuse or breaker size. Check for shorts in unit wiring & components Power cord not plugged in Plug it in System switch in "OFF" position Set switch correctly Inoperative system switch T est for continuity in [...]

19 Problem Possible Cause Action 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 Allow a minimum of 2 minutes to allow pressures to equalize before attempting to restar[...]

20 Problem Possible Cause Action 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 between the unit & the sleeve. Also, ensure that fresh air/exhaust vents (on [...]

21 Problem Possible Cause Action Room temperature uneven (Heating cycle) Heat anticipator (resistor) shorted (on applicable models) Disconnect power to unit. Remove resistor from t-stat bulb block. Plus in unit & allow to operate. Feel resistor for heat. If not heat, replace resistor Wide differential - partial loss of t-stat bulb charge Replac[...]

22 Problem Possible Cause Action 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 build up in system, then switch to heating. If valve fails to shift, replace [...]

23 ELE CT RIC AL TR OUBL ES HOO TING C HART — HEA T PUMP NO Is Line V oltage Present at the Solenoid NO YES YES TR OUBL E SHOO TING C HART — HEA TING Noncond en sab les ( air ) Ove rcha rged Low Air fl ow Acros s Indoor Coil Outdo or Am bient T o o High For Operat ion In H eating High Head P ressure REFRIGER ANT S YST EM DIA GNOSIS – HEA TIN[...]

24 MODELS XQ 0 5 L 10 - A , B; XQ 0 6 L 10 - A , B ,C, D; XQ 0 8 L 10 - A , B; XQ 10 L 10 - A , B; XQ 12 L 10 - A , B[...]

25 MODELS K S 1 0L 1 0-A, R S 1 0L 1 0-A, K S 1 2L 1 0-A, K S 1 2L 3 0-A, K S 1 5L 1 0-A, R S 1 5L 1 0-A, R S 1 6L3 0-A, RM 1 8L30 -A , KM1 8L30- A , KM21 L30- A , RM24L30 - A , KM24L30- A[...]

26 MODELS SS08L 1 0- A /B, SS 1 0L 1 0 - A /B, SS 1 2L 1 0- A /B ; SS 1 2L30 - A /B, SS 1 4L 1 0- A /B, S S 1 6L 30-A/B , S M 1 8 L3 0-A/B , S M 2 1 L3 0-A/B , S M2 4L 3 0-A/B[...]

27 MODEL SL36L3 0 - A[...]

28 MODEL SL28 L30 - A[...]

29 MODELS SL36 L30 - B[...]

30 MODEL EQ 08 L 1 1- A[...]

31 MODELS E S 1 2L 3 3-A, E S 1 6 L3 3-A, E M 1 8 L 34-A, E M 24 L 3 5-A[...]

32 MODEL EL36L35 -A[...]

33 MODEL YS 0 9 L 10 - A , YS 0 9 L 10 - B[...]

34 MODELS Y S 1 3L33 - A , YM 1 8L34 - A[...]

35 MODELS YL24L35 - A[...]

RAC-Svc-07 (4-07) F riedrich Air Condi tioning Co. Post Of f ice Box 15 4 0 • San A nto nio , T exa s 782 95 - 1 5 4 0 420 0 N. Pa n Am Expr e ss way • San A ntonio, T exa s 7821 8 -521 2 (210) 357 - 44 0 0 • F A X (210) 357 - 4 4 8 0 w w w. friedrich .com Printe d in th e U .S.A .[...]