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Friedrich 2008 manuale d’uso - BKManuals

Friedrich 2008 manuale d’uso

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Un buon manuale d’uso

Le regole impongono al rivenditore l'obbligo di fornire all'acquirente, insieme alle merci, il manuale d’uso Friedrich 2008. La mancanza del manuale d’uso o le informazioni errate fornite al consumatore sono la base di una denuncia in caso di inosservanza del dispositivo con il contratto. Secondo la legge, l’inclusione del manuale d’uso in una forma diversa da quella cartacea è permessa, che viene spesso utilizzato recentemente, includendo una forma grafica o elettronica Friedrich 2008 o video didattici per gli utenti. La condizione è il suo carattere leggibile e comprensibile.

Che cosa è il manuale d’uso?

La parola deriva dal latino "instructio", cioè organizzare. Così, il manuale d’uso Friedrich 2008 descrive le fasi del procedimento. Lo scopo del manuale d’uso è istruire, facilitare lo avviamento, l'uso di attrezzature o l’esecuzione di determinate azioni. Il manuale è una raccolta di informazioni sull'oggetto/servizio, un suggerimento.

Purtroppo, pochi utenti prendono il tempo di leggere il manuale d’uso, e un buono manuale non solo permette di conoscere una serie di funzionalità aggiuntive del dispositivo acquistato, ma anche evitare la maggioranza dei guasti.

Quindi cosa dovrebbe contenere il manuale perfetto?

Innanzitutto, il manuale d’uso Friedrich 2008 dovrebbe contenere:
- informazioni sui dati tecnici del dispositivo Friedrich 2008
- nome del fabbricante e anno di fabbricazione Friedrich 2008
- istruzioni per l'uso, la regolazione e la manutenzione delle attrezzature Friedrich 2008
- segnaletica di sicurezza e certificati che confermano la conformità con le norme pertinenti

Perché non leggiamo i manuali d’uso?

Generalmente questo è dovuto alla mancanza di tempo e certezza per quanto riguarda la funzionalità specifica delle attrezzature acquistate. Purtroppo, la connessione e l’avvio Friedrich 2008 non sono sufficienti. Questo manuale contiene una serie di linee guida per funzionalità specifiche, la sicurezza, metodi di manutenzione (anche i mezzi che dovrebbero essere usati), eventuali difetti Friedrich 2008 e modi per risolvere i problemi più comuni durante l'uso. Infine, il manuale contiene le coordinate del servizio Friedrich in assenza dell'efficacia delle soluzioni proposte. Attualmente, i manuali d’uso sotto forma di animazioni interessanti e video didattici che sono migliori che la brochure suscitano un interesse considerevole. Questo tipo di manuale permette all'utente di visualizzare tutto il video didattico senza saltare le specifiche e complicate descrizioni tecniche Friedrich 2008, come nel caso della versione cartacea.

Perché leggere il manuale d’uso?

Prima di tutto, contiene la risposta sulla struttura, le possibilità del dispositivo Friedrich 2008, l'uso di vari accessori ed una serie di informazioni per sfruttare totalmente tutte le caratteristiche e servizi.

Dopo l'acquisto di successo di attrezzature/dispositivo, prendere un momento per familiarizzare con tutte le parti del manuale d'uso Friedrich 2008. Attualmente, sono preparati con cura e tradotti per essere comprensibili non solo per gli utenti, ma per svolgere la loro funzione di base di informazioni e di aiuto.

Sommario del manuale d’uso

  • Pagina 1

    Ser vice Manual W allMaster ® Thru-the-W all WM-ServMan (04-09) Wa i t th r e e m i n u tes be for e r es t a rt in g Wa r m e r Coo l e r F an O n ly Low H e a t Me d H e a t Hi g h H eat Lo w C oo l M e d C oo l H i g h C oo l M O DE TE M P E R A T U R E 72 Models 2009 2008 M o n ey F a n T im e r O p e r a ti o n S e tH r . S t o p S t a r t Te[...]

  • Pagina 2

    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[...]

  • Pagina 3

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

  • Pagina 4

    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[...]

  • Pagina 5

    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[...]

  • Pagina 6

    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[...]

  • Pagina 7

    5 FRIEDRICH WALLMASTER MODE L NUMB ER CODE W S 08 B 1 0 B 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[...]

  • Pagina 8

    6 20 08 / 20 0 9 PERFORMA NCE DA T A * Rati ng C on diti on s: 80 d egr ees F , room ai r tem p. & 50% r elat ive hu midi t y , wit h 95 d eg ree F , outsi de air t emp & 4 0% re lat ive hum idi ty Model Hei ght Wi dt h Depth De pth wit h Fro nt Mi nim um Ex te ns io n Int o Roo m Mi nim um Ex te ns io n Outside Th ru -t he - wa ll Fin is h[...]

  • Pagina 9

    7 Wire Size Use O NL Y wir ing size rec ommende d for single out let branch c ircuit. F use/Circuit B reaker Use ON L Y the cor rec t HACR type and size fuse/circuit breaker . Read elec tr ical ratings on unit ’ s r ating plate. Proper circ uit protecti on is the re sponsibiit y of the h omeowne r . Grounding Unit M UST be grounde d from bra nch [...]

  • Pagina 10

    F U N C TI O NA L CO MP O NE NT S A . Me c ha ni ca l c o m p onen ts Drain pan valve T em p er atur e- sensi tiv e v a lv e t hat o p ens u p to dr ain o ff co nden s a te w a ter wh en t he ou tsi de te m p er at ur e f all s below 40 °F and c lo se s wh en th e ou ts id e tem p e r ature rea ch e s 60 ° F Pl e num a s sem bl y y D i ffus e r w[...]

  • Pagina 11

    Ho w to o p e ra te t h e Fr iedric h W allMaster Figure 1: WS Model cool-only control panel Figure 2: WY/WE Model heat-cool control panel 1 Power 2 3 4 8 Cool Fan Smart 9 Fan Only 6 Mode Speed Fan Heat 7 Clock 5 Timer Set Money Start Time 14 On/Off Saver Stop Time 13 T emp/Hour 10 1 1 12 To s ta rt uni t , e l c a t p e c e r r e p o r p a o t n i[...]

  • Pagina 12

    To s e t t h e t i m e r NOTE : Se t the HOUR C LO CK ( S et Hour ) before a tt emp ting to s et timer f uncti ons. Yo u ca n set the Star t Time and Stop T im e a m inimum o f one hour apa rt , and a m ax imu m of 23 h ou 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 ). Use t he and e h t t a h t e[...]

  • Pagina 13

    Fi gure 3 : WY /W E heat -c oo l mo del r em ot e con tr o l Additional R C1 w irele ss re mote c on trol s ca n be p ur cha sed f rom yo ur F ried ri ch d eale r. Fi gure 4 : WS M o de l s O n l y Additional R C1 w irele ss re mote c on trol s ca n be p ur cha sed f rom yo ur F ried ri ch d eale r. Usin g th e r em ot e c o n tr ol To s ta rt u n [...]

  • Pagina 14

    ELECTR ONIC CONTROL P ANEL CHECKING ROOM TEMPERA TURE 1. C h ec k th e ro om te m pe r at u r e a t the el ec tr o ni c con t ro l pad by pressing at the same time, the F an S pe ed button and t he T emp /Hour b u tt o n o n the WS/ WE / W Y m odels (see gures 5 and 6) . 2. Th e ind o or te m pe r at u r e wi l l d is p la y fo r 1 0 sec on d s.[...]

  • Pagina 15

    ERR OR CODES LISTING FOR “WS” MODELS E 1 SHOR T CY CLE S ITUA TI ON: De n e d as a co mp r es so r th a t st arts an d st o ps mor e fr eq u en t l y th a n i t s h ou l d . E2 K E YBOARD STUCK ERROR: If an y ke y bu tt on is st u ck or pr e ss ed fo r 20 se con d s or mor e , the u ni t con s id e rs it st u ck . If a k e y is st u ck it wi[...]

  • Pagina 16

    Figure 8: System Control Switch (Heat Pump & Electric Heat Models) Fan Only Off Low Cool Low Heat Med Cool Med Heat High Heat High Cool MAX HEAT MAX COOL ! Allow 3 min. between restarts SYSTEM CONTROL SWITCH - TEST Disconnect leads from control switch. T urn control to position being tested (see Figure 8). There must be continuity as follows: 1[...]

  • Pagina 17

    15 ELECTR ONIC CONTROL OPERA TION Heat Pump w/back up Electric Heat If t he in door ambient air themi ster re ads 5 5 degrees, turn of f t he co mpress or and tur n on the ele ctr ic heat and continu e fan operati on until temp s ettin g is satis ed. The n rev er t to st andard heat pump ope ration. If the c ompres sor is ti me delayed : 1 . T u[...]

  • Pagina 18

    16 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[...]

  • Pagina 19

    17 DRAIN P AN V AL VE During the cooling mode of operation, condensate which collects in the drain pan is picked up by the condenser fan blade and sprayed onto the condenser coil. This as - sists in cooling the refrigerant plus evaporating the water . During the heating mode of operation, it is necessary that water be removed to prevent it from fre[...]

  • Pagina 20

    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[...]

  • Pagina 21

    R efrigerant Char ging NOTE: Because The W allMaster 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. Pr[...]

  • Pagina 22

    3. Install a process tube to sealed system. 4. Make necessary repairs to system. 5. Evacuate system to 300 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[...]

  • Pagina 23

    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[...]

  • Pagina 24

    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[...]

  • Pagina 25

    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[...]

  • Pagina 26

    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[...]

  • Pagina 27

    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 of f high voltage electrical power to unit. 2. Unplug line voltage lead from reversing valve coil. 3. Check for electrical continuit[...]

  • Pagina 28

    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. [...]

  • Pagina 29

    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[...]

  • Pagina 30

    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 “[...]

  • Pagina 31

    R ecommended procedur e 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[...]

  • Pagina 32

    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 a l e d R e f r i ge r a ti o n Sy s te m c o n t a i n s r e f r i g e r an t and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing mu[...]

  • Pagina 33

    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[...]

  • Pagina 34

    Return Air Grille Decorative Front WSC Sleeve AB123456C3567 MODEL# WS07A10B Airflow Rotate D ischarge G rille 1" Diam eter Pl ug 1” Diameter Plug 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 cleane[...]

  • Pagina 35

    33 COOLING ONL Y ROOM AIR CONDITIONERS: TR OUBLESHOO TING TIPS 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 in[...]

  • Pagina 36

    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” position Set switch correctly Inoperative system switch or open con[...]

  • Pagina 37

    35 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 a minimum of 2 minutes to allow pressures to equalize befor[...]

  • Pagina 38

    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 applicabl[...]

  • Pagina 39

    37 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[...]

  • Pagina 40

    38 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[...]

  • Pagina 41

    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[...]

  • Pagina 42

    WALLMASTER WIRING DIA GRAM ELECTR ONIC CONTROL COOL ONL Y MODELS: WS08B10A-D,A-F WS10BIO A-D WS14B10A-D WS14B10A-E WS10B30A-D WS13B30B-E,B-F WS16B30A-D,A-E 40[...]

  • Pagina 43

    WALLMASTER WIRING DIA GRAM ELECTR ONIC CONTROL COOL WITH ELECTRIC HEA T MODELS: WE10B33C-A WE13B33C-A WE16B33C-A 41[...]

  • Pagina 44

    WALLMASTER WIRING DIA GRAM ELECTR ONIC CONTROL HEA T PUMP WITH ELECTRIC HEA T MODELS: WY10B33C-A WY13B33C-A 42[...]

  • Pagina 45

    43 WALLMASTER WIRING DIA GRAM ELECTR OMECHANICAL CONTROL COOL WITH ELECTRIC HEA T MODELS: WE10B33A-C WE13B33B-D,B-E WE16B33A-C ,A-D[...]

  • Pagina 46

    44 WALLMASTER WIRING DIA GRAM ELECTR OMECHANICAL CONTROL HEA T PUMP WITH ELECTRIC HEA T MODELS: WY10B33A-C ,A-D WY13B33A-C ,A-D[...]

  • Pagina 47

    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 osal 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 se for the unit when moun te [...]

  • Pagina 48

    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 WSC 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 “WSC” SLEEVE MOUNTING HARDW ARE PROVIDED W ALL PREP ARA TION: [...]

  • Pagina 49

    FIGURE 2 BACK UNIT REST LEVEL FRONT UNIT REST RAISED LEDGE INST ALLA TION REQUIREMENTS: STEP 1 The “WSC” 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 “WSC” SLEEVE must extend a minimum of 7/8” beyond the INSIDE W ALL. STEP 3 The “WSC” SLEEVE mu[...]

  • Pagina 50

    48 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[...]

  • Pagina 51

    49 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 [...]

  • Pagina 52

    50 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 [...]

  • Pagina 53

    51 51 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 inj[...]

  • Pagina 54

    52 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[...]

  • Pagina 55

    53 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[...]

  • Pagina 56

    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[...]

  • Pagina 57

    55 Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www .friedrich.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[...]

  • Pagina 58

    [...]

  • Pagina 59

    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[...]

  • Pagina 60

    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 (04-09)[...]