Friedrich 2008 manuale d’uso

Ser vice Manual Room Air Conditioners RAC-ServMan (04-09) Models 2009 2008 Low Co ol Hig h Coo l Lo w H ea t H i gh Heat MAX CO OL MA X HE AT Fa n On l y O f f Allow 3 mi n. be twe e n r es ta rt s ! M one y Fan T i m erOp e r at i on Set Hr . S to p Start T e m pe ra t u r e Fan C ool O n/O P o w er Coo le r Only Spee d S ave r ® W ar m er Mon[...]

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. TECHNICAL SUPPORT CONT ACT INFORMA TION[...]

1 T able Of Contents Important Safety Information ........................................................................................................................................ 2-4 Introduction ..................................................................................................................................................[...]

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 TYPICAL UNIT COMPONENTS Fresh Air Compressor Capillary T ube Liquid Filter Driers Reversing V alve Condenser Coil (some models) Discharge Air Front Cover System Switches Outdoor Grille Evaporator Coil Sleeve Return Air Grille/Filter Blower Wheel Blower Motor Condenser Fan Blade Basepan This service manual is designed to be used in conjunction wit[...]

6 Serial Number Decade Manufactured L=0 C=3 F=6 J=9 A=1 D=4 G=7 B=2 E=5 H=8 L H G R 00001 Production Run Number Y ear Manufactured A=1 D=4 G=7 K=0 B=2 E=5 H=8 C=3 F=6 J=9 Product Line R = RAC 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 1st Digit – Function S = Straight Cool, V alue Series Y = Heat P[...]

The consumer - throug h the AHA M Room Air Cond it ioner Cer tification Prog ram- can b e cert ai n that the AHA M Cer tificat ion Seal ac cu rately stat e s th e unit’ s co o li ng and heating capacity rating , th e ampere s and th e energ y efficiency ratio. As an ENERGY ST AR ® partner , Friedrich Air Conditioning Co. has determined that the [...]

* M inim um ex tensi ons wh en mou nt e d in a wi nd ow. ** M inim um wi dt hs achieve d us ing on e side cur t ai n as sembly a s opp os ed t o both i n a standa rd in st al lation . † Slee ve P1 does no t have thr u-the -w al l hole dime nsions, as t hese uni ts are fi xed chas sis and should n ot be ins t al led t hru-t he-w all . NOT E: S,M a[...]

PERF ORM ANCE D A T A F OR 2 009, 20 08 MOD ELS 9 COOLING PERFORMANCE DA T A* EV AP . AIR TEMP . DEG. F CONDENSER TEMPERA TURE DEG. F Discharge T emp Suction T emp 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 Cha[...]

ELECTRICAL D A T A ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before service or installation. All ele ctrica l co nn ecti ons a nd wiri ng MUS T be in st al le d b y a qu al ie d el ec tri ci an an d con fo rm to the National Electr ical Code and all local code s which have jurisdic tion. F ai lu re t o do s o ca n re sul t in pe rs[...]

11 ELECTRICAL SHOCK HAZARD W ARNING Make sure your electrical receptacle has the same configuration as your air conditioner’s plug. If different, consult a Licensed Electrician. Do not use plug adapters. Do not use an extension cord. Do not remove ground prong. Always plug into a grounded 3 prong outlet. Failure to follow these instructions can r[...]

12 A/C St op Mode T emp F an Timer O F / O C A/C St art Timer On/ O  1 - 4 Speed Smar t Fan Check Filter Set Hour Power Coo l Mone y Save r ® PM Fan Only Press to reset 1 3 DISPLA Y 8 5 4 2 1 5 1 0 7 1 1 9 6 3 1 1 4 1 2 F i gur e 3 T o s t a r t u n i t 1 If you r ai r c o ndi t ione ri s ins t alle d an d plugge d int oa pr oper re - h c u o T[...]

13 * A Friedr ich RC1 wireles s remote co ntrol c an be u se d to operate all Quie tM aste r ® P ro gra mmable mo dels . F i gur e 4 T o s t a rt u n i t 1 PO WER - P res s th e P ow e r bu t to n on ce. The uni t wi ll automa tic all y tur n on in the mode and f an speed it was last lef t on. T o s e t m o d e o f o p e r a t io n 2 COOL - P res [...]

14 To st ar tu ni t s i t i , e l c a t p e c e r r e p o r p a o t n i d e g g u l p d n a d e l l a t s n i s i r e n o i t i d n o c r i a r u o y f I ready to go .T he fi rs t tim et he unit is st ar ted, th ec ompresso rw il ld el ay for thre e minutes .S ee Automati cC omponen tP rotectio no nt he followin gp ag e. 1 To uc ht he Pow er bu tt [...]

15 T o s e t t h e time r NOTE: Y ou can set the ST ART an d STOP t ime sa minimu m of on e hou r apa rt, an da max imu m of 23 hou rs apa r t. 9 TIMER ST ART - Press Sta r t . g n i l o o c r o f e m i t t r a t s t n e r r u c e h t w e i v o t Co n tinu e pressin g th e Sta rt bu t to n un til yo u arr iv e at the start time you de si re . The s[...]

16 Allo w3 min . b etw een resta rts SPEE D Slee p Settin g Low Co ol Med iu m Co ol Hig h Co ol Fan Only O MIN M AX Money Saver ® Yes No Allow 3 min. between restarts Money Saver ® MA X COO L MA X HE A T Low Coo l Me d Coo l Hig h Coo l Low Hea t Me d Hea t Hig h Hea t Fa n Onl y O Yes No T o s t a rt u n i t If your air c o ndi t io n er [...]

EQ08 models Function Control The left knob is a six position control that allows you to select heat or cool in either low speed or high speed. Plus you can select fan only if you wish. Function Control The right hand knob is the thermostat - turn it clockwise for cooler , counter-clockwise for warmer (See Figure 9). Lo w Coo l H igh Coo l Lo w Heat[...]

Activating Error Code Mode: (Submode of T est Mode) Unit must be in T est Mode to enter Error Code Mode 1. Activate Error Code Mode by pressing the “TIMER ON/ OFF” button on XQ models. LED for the “TIMER ON/ OFF” will ash 1 bps while Error Code Mode is active. Pressing the “TEMP/HR ” button will display 00. Consecutive presses will s[...]

(Heat Pump & Electric Heat Models) An e ight posit ion contro l switch i s used t o regulate the ope ratio n of t he f an mot or and compresso r. T he compresso r can b e operated wit h the fa n operating at l ow , medium or high speed in the cooling or heating mode. The fan motor can a lso be operated i ndependently o n medium speed. S ee swit[...]

20 ME C HANI C A L C OMP ONE N TS Be ll ow s con d en sa te v al v e T em pe ra tu re-s en si tiv e v alv e th at opens up t o drain o ff co nden sa te wa t er wh en th e ou ts id e temper at ure falls below 40 °F and cl os e s wh en the ou t sid e temper at ure rea che s 58° F . V ent door Allo ws in trod uct ion o f fre sh ai r in to t he roo m[...]

COMPONENTS TESTING 21 T ES T : 1 . R em ov e leads fr om t her mos tat. 2. Tu r n the r mo s t a t knob c l oc k w ise t o its c o lde s t po si tio n. 3. T e st for c on t inui t y betw een t he t wo te r m inals. Contacts should be cl os e d . 4. T urn t hermostat kn ob c oun tercloc kwise to its warme st po si tio n. 5. T est for c on tinuit y -[...]

22 COMPONENTS TESTING (Continued) DEFROST THERMOS TA T (Heat Pump Models Only) (See Figure 21) This thermostat is single pole - double throw with contacts between terminals “2” and “3” closing on temperature rise and contacts between terminals “2” and “1” closing on temperature fall. When the contacts between terminals “2” and ?[...]

23 CAP ACIT ORS ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 W att resistor before handling. Failure to do so may result in personal injury , or death. Many motor capacitors are internally fused. Shorting the terminals will blow the fuse, ruining the capacitor . A 20,000 ohm 2 wat[...]

HEA TING ELEMENT (See Figure 25) All heat pumps and electric heat models are equipped with a heating element with the exception of models starting with YS09. The “YS” and “ES” models are equipped with a 3.3 KW element. The “YM” and “EM” models are equipped with a 4.0 KW element. The “YL” and “EL” models are equipped with a 5[...]

Mode Control The mode control pad(s) allow the selection of the operating modes of the unit. There is a two second delay before the mode activates its appropriate relay . OPERA TING SEQUENCE / CHARACTERISTICS AND FEA TURES Compressor Operation The run state of the compressor is determined by the difference between the indoor ambient temperature and[...]

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 efrigerant Char ging NOTE: Because The RAC System Is A Sealed System, Service Process T ubes Will Have T o Be Installed. First Install A Line T ap And Remove Refrigerant From System. Make Necessary Sealed System Repairs And V acuum System. Crimp Process T ube Line And Solder End Shut. Do Not Leave A Service V alve In The Sealed System. Proper ref[...]

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-22 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 protective[...]

Underchar ged R efriger ant 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, all[...]

R estricted R efrigerant 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 [...]

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 th[...]

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 “[...]

37 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. D[...]

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 ea le d R e fr ig e ra t io n S ys t em co nt a in s r e fr ig e ra n t and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be wor[...]

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. Units are to be inspected and serviced by qualied service personnel only . Use proper protection on surrounding property . Failure[...]

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[...]

COOLING ONL Y ROOM AIR CONDITIONERS: TR OUBLESHOOTING TIPS 41 n o i t c A 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 T -stat not set cold enough or inoperative Set t-stat to coldest position. T est t-stat & re- place if ino[...]

COOLING ONL Y ROOM AIR CONDITIONERS: TR OUBLESHOOTING TIPS 42 n o i t c A e s u a C e l b i s s o P m e l b o r P 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” posit[...]

COOLING ONL Y ROOM AIR CONDITIONERS: TR OUBLESHOOTING TIPS 43 n o i t c A 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 Allow [...]

COOLING ONL Y ROOM AIR CONDITIONERS: TR OUBLESHOOTING TIPS 44 n o i t c A 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 betwee[...]

HEA T / COOL ONL Y ROOM AIR CONDITIONERS: TR OUBLESHOOTING TIPS 45 n o i t c A e s u a C e l b i s s o P m e l b o r P Room t empera t ur e une ven (Hea t ing cycle ) Hea t an t icipa t or (resis t or) shor t ed (on applicabl e model s) Disconnec t power t o uni t. Remove re s is t or f ro m t -s ta t bulb block . P lus in uni t & allow t o ope[...]

46 n o i t c A 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 build up in system, then switch to heating. If valve fa[...]

47 ELECTRICAL TROUBLESHOOTING CHART — H EA T PUMP Reversing V alve Stuck Replace the Reversing V alve Replace the Solenoid Coil NO Is the Solenoid Coil Good? Is Line V oltage Present at the Solenoid Is the Selector Switch Set for Heat? NO SYSTEM COOLS WHEN HEA TING IS DESIRED. YES HEA T PUMP YES TR OUB LES HOO T ING C HA RT — HE A T PUMP Noncon[...]

TROUBLESHOO TING T OUCH TEST CHART : T O SERVICE REVERSING V AL VES 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[...]

ELECTR ONIC CONTR OL COOL ONL Y MODELS: XQ05L10A-C XQ06L10A-C XQ08L10A-B ,A-E XQ10L10A-C XQ12L10A-B ,A-C 49[...]

ELECTR ONIC CONTR OL COOL ONL Y MODELS: SS08L10-E,-F ,-G SS10L10-D ,-E SS12L10-E,-F SS14L10-D,-E SS12L30-E,-F SS16L30-D,-E SM18L30A-D,A-E SM21L30-E,-F SM24L30-C ,-D 50[...]

ELECTR OMECHANICAL CONTR OL COOL ONL Y MODELS: KS12L10-E,-F KS15L10-C ,-D KM18L30-C ,-D KM24L30-C ,-D 51[...]

ELECTR OMECHANICAL CONTR OL COOL ONL Y MODELS: SL28L30-D,-E SL36L30A-D ,A-E 52[...]

ELECTR OMECHANICAL CONTR OL COOL WITH ELECTRIC HEA T MODEL: EQ08L11A-B ,A-E 53[...]

ELECTR OMECHANICAL CONTR OL COOL WITH ELECTRIC HEA T MODELS: ES12L33-D,-E ES16L33-C ,-D EM18L34-C EM24L34-B 54[...]

ELECTR OMECHANICAL CONTR OL COOL WITH ELECTRIC HEA T MODELS: EL36L35A-D,A-E 55[...]

ELECTR OMECHANICAL CONTR OL HEA T PUMP ONL Y MODELS: Y S09L10-F ,-G 56[...]

ELECTR OMECHANICAL CONTR OL HEA T PUMP WITH ELECTRIC HEA T MODELS: Y S13L33-D,-E YM18L34-D,-E 57[...]

ELECTR OMECHANICAL CONTR OL HEA T PUMP WITH ELECTRIC HEA T MODELS: YL24L35-E,-F 58[...]

4 INSTR UC T IONS F OR USING COOL ING LO AD ESTIMA TE F O RM F OR ROOM AIR COND I TIONERS (AHAM PUB. NO. RAC-1) A. This cooling load estimate form is suitable for estimating the cooling load for comfort air conditioning installations which do not require specifi c conditions of inside temperature and humidity . B. The form is based on an outside d[...]

5 COOLING LO A D EST IMA TE FORM HEA T GAIN FROM 1. WINDOWS: Heat gain from the sun. Northeast East Southeast South Southwest West Northwest North 2. WINDOWS: Heat by conduction (T otal of all windows.) Single glass Double glass or glass block 3. W ALLS: (Based on linear feet of wall) a. Outside walls North Exposure Other than North exposure b. Ins[...]

6 Following i s an exampl e using th e heat loa d form : A space to be conditioned is par t of a hou se geographically located in an area where the lowest outdoor ambien t winter temperature is 40°F . The calculated heat los s is 184 B TU / Hr . / °F . Subtract 40°F (lowest outdoo r ambient temperature for t he geographical location) from 70 ° [...]

7 HEA TING LOAD FORM FRIEDRICH ROOM UNIT HEA T PUMPS BTU/HR PER W ALLS: (Linear Feet) °F TEMP . DIFFERENCE 2” Insulation Lin. Ft. x 1.6 A verage Lin. Ft. x 2.6 WINDOWS & DOORS (Area, sq. ft.) Single Glass: Sq. Ft. x 1.13 Double Glass: Sq. Ft. x 0.61 INFIL TRA TION - WINDOWS & DOORS: A VG. Lin. Ft. x 1.0 Loose Lin. Ft. x 2.0 CEILING : (Ar[...]

63 Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.440 0 www .friedrich.co m ROOM AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material wi thin twelve months from date of original purchase, FRIEDRICH will repair the product at no c[...]

[...]

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. TECHNICAL SUPPORT CONT ACT INFORMA TION[...]

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. RAC-ServMan (04-09)[...]