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Friedrich RAC-SVC-06 manual

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Table of contents for the manual

  • Page 1

    Ser vice Manual Room Air Conditioners RAC-Svc-06 (3-06) 2006 C o o l S U PER H IG H E F F I CIE N C Y T e m p / H o u r F a n O n ly C lo c k S ta r t S to p Mo n e y S a v e r ® P M V e n t s h u t E x h a u s t F a n S p e e d T i m e r O n / O ff S e t H o u r P o w e r O n / O ff M o d e[...]

  • Page 2

    2 INT ROD UC TION T h i s s e r v i c e m a n u a l i s d e s i g n e d t o b e u s e d i n c o n j u n c t i o n w i t h the installat ion manuals provided wi t h e ac h a ir c on di ti on in g syst em c omp on ent . This ser vic e manual was wr it ten to assist the profes sional R AC s er vice te chni cian to q uickl y and accura te ly d iagn ose[...]

  • Page 3

    3 Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www.fri edri ch. com ROOM AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY P AR T : If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within tw elve months from date of original purchase, FRIEDRICH will repair the product at no[...]

  • Page 4

    4 ROUTI N E M A I NTEN A NCE NOT E: Units are to b e inspected and ser viced by qualifi ed ser vice p ersonnel only . Inspect the indoor blower housing, ev aporator blade , conden ser fan blade, and co ndenser shroud periodic ally (yearly or bi-yearly) and clean of all debris (lint, dir t, mold, fungus, etc. ) Clean the blower housing area and blo[...]

  • Page 5

    5 UNIT IDENTIFIC A TION Model Number 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 E[...]

  • Page 6

    6 PER FO R M A N CE DA T A Model EV APO RA TO R AIR TEM P °F CONDE NSE R TEMP °F DISCHARGE TEMP SUCTION TEMP SUPER HEAT SUB- COOLING OPERATING PRESSURE S ELECTRICAL RATINGS R-2 2 REF . Vol t ag e BREAK ER FUSE Discharge Air Te m p Drop ° F Suction Discharge Amps Cool Amps Heat Locked Rot or Amps Charge in OZ. 60 Hertz Amps Q-Cha ssis XQ05L10-A 5[...]

  • Page 7

    7 Wir e Size Use O NL Y wir ing size rec o mmen ded for single outlet branch circuit . F use / Circuit Use ON L Y t ype and size fuse or HACR Bre ak er circuit breaker indicated on unit ’s ra ting plate. Proper current prot ection to the unit is the responsibilit y of the owner . Grounding 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 c[...]

  • Page 8

    8 MEC HANIC AL COMP ONENTS Bellows condensate v alve T emperature - sensitive valv e that opens up to drain of f co ndensate water when the outside temperature falls below 40° F and closes when the out side temperature reaches 58° F . Ve n t d o o r Allows intro duction of f resh air into the room and /or exhausts stale room air out side (on sele[...]

  • Page 9

    9 ELE CTRONIC C ONTR OLS IMPORT ANT : Error C odes are cleare d from the l o g b y ex i t i n g f r o m E r r o r C o d e M o d e. T o e x i t o n XQ models, press Timer O n / O f f but ton. T o exit QM E models, press A / C Star t and On / O f f but tons. Or u n p l u g u n i t t o e x i t E r r o r C o d e M o d e . P l u g u n i t i n a f t e r [...]

  • Page 10

    10 IMPORT ANT AN Y SE A LED SY STEM REP A IRS TO COOL - ONL Y MO DELS REQUI RE TH E INST A LL A TIO N 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 REP A IRS TO HE A T PUM P M OD ELS REQUI RE TH E INST AL L A TION O F A SUCTIO N LIN E DRIER . the liquid refrigerant leaves the met ering device entering the e vapora tor[...]

  • Page 11

    11 EQUIPMEN T REQUIRED 1. Vo l t m e t e r 2. Ammet er 3. Ohmmeter 4. E .P . A . A p pr oved Ref r i ge rant Rec ove r y Sy stem . 5. V acuum Pump (capable of 20 0 microns or les s vacuum. ) 6. Acet ylene Welder 7 . Electronic Halogen Leak Detector (G.E. T ype H - 6 or equiva lent. ) 8. Accur ate refr igerant c harge measuring devic e such as: a. B[...]

  • Page 12

    12 NOTE: In order to acc ess the seale d system it will be necess ar y to install Sc hrader t ype fi t tings to the proc ess tubes o n th e d i s c h a r g e a n d s uc ti on of th e c o m p r e ss or . P ro pe r r e fri ge ra nt re co ve ry p ro ced ur es ne ed to be ad he re d t o a s outlined in EP A Regulati ons. THIS S HO ULD O NL Y B E A T T[...]

  • Page 13

    13 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 oo ling cycle. Whenever you servic e a unit wit h an under cha rge o f refrig erant, always suspect a leak. The leak must be repaired before charging the unit. T o c heck for an undercharge d sy stem, [...]

  • Page 14

    14 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 t he ev aporator . The evapora tor in a par tial rest ric tion c ould be par t ially frosted or have an ice ball close to the entrance of the metering device. F rost may continue on t he s[...]

  • Page 15

    15 NOR MA L FUNCTI ON OF VAL VE VA LV E OPERA TING COND ITI ON DISCHARGE TUBE from Compre ssor SUCTION TUBE to Comp ress or 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 TUR E OF VAL VE BO DY ** W ARME R THA N V AL VE B OD Y 12 3 456 P O S S I B L E C A U S E S C[...]

  • Page 16

    16 COOL ING ONL Y ROOM AIR CONDITIONERS: TROUBL ESHOO TING TIPS 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 inop- erative Set t-stat to coldest position. T est t-stat & replace if inoperative Compressor [...]

  • Page 17

    17 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 [...]

  • Page 18

    18 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[...]

  • Page 19

    19 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 [...]

  • Page 20

    20 HEA T / COOL ROOM AIR CONDITIONERS: TR OUBLE SHOOTING TIPS 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 Wi[...]

  • Page 21

    21 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 [...]

  • Page 22

    22 ELE CTRIC AL TR OUBLE SHOO TING C HART — HEA T PUMP NO Is Line V olt age Present at the Solenoid NO YES YES TR OUBLE SHOO TING CHART — HEA TI NG Noncon den sab les (a ir ) Ove rchar ged Low Air fl ow Acro ss Indoor Coil Outdoor Ambient T oo High For Oper ation I n Heat ing High Head P ressure REFRIGER ANT S YS TEM DIAGNOSIS – HEA TING Moi[...]

  • Page 23

    23 MODEL SC06 H1 0 D[...]

  • Page 24

    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 ; XQ12 L 10 - A , B[...]

  • Page 25

    25 MODELS K S 1 0L 1 0-A, RS 1 0 L 1 0-A, K S 1 2 L 1 0-A, K S 1 2 L 3 0-A, K S 1 5L 1 0-A, R S 1 5L 1 0-A, RS 1 6L 3 0-A, RM 1 8L 30-A, KM 1 8L 30-A, KM 2 1 L3 0-A, RM 24 L 30-A, KM 24 L3 0-A[...]

  • Page 26

    26 MODELS SS08L 1 0- A / B, SS1 0L 10- A / B, SS 1 2L 1 0- A / B ; SS 1 2L30 - A / B, SS 1 4L 1 0- A / B, SS 1 6L30 - A / B, SM 1 8L30 - A / B, SM21 L30 - A / B, SM24L30 - A / B[...]

  • Page 27

    27 MODEL SL36L30 - A[...]

  • Page 28

    28 MODEL SL28L3 0 - A[...]

  • Page 29

    29 MODELS SL36L 30 - B[...]

  • Page 30

    30 MODEL EQ 0 8L 1 1 - A[...]

  • Page 31

    31 MODELS ES 1 2L33 - A , ES 1 6L33- A , EM 1 8L3 4 - A , EM24L35 - A[...]

  • Page 32

    32 MODEL EL36L 35 - A[...]

  • Page 33

    33 MODEL YS 0 9 L 10 - A , YS0 9L 10 - B[...]

  • Page 34

    34 MODELS YS1 3 L 33 - A , Y M1 8 L3 4 - A[...]

  • Page 35

    35 MODELS YL24L35 - A[...]

  • Page 36

    RAC-Svc-06 (3-06) F rie drich Ai r Conditioni ng Co. Post Of f ice Box 15 4 0 • Sa n Ant onio , T exa s 782 95 - 15 4 0 420 0 N. Pan A m Expr es s way • San Ant onio, T exas 7821 8 -521 2 (210 ) 357 - 44 00 • F A X (210 ) 357 - 44 80 www . fr i ed r i c h . c om Printe d in t he U.S .A .[...]