Manuale d’uso / di manutenzione del prodotto KM21J30 del fabbricante Friedrich
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Page 1 Ser vice & P ar ts Man ual AMERICA’S BEST AIR CONDITIONER 1998 QuietMaster ® J Series KS10J10 KS12J10 KS12J30A KM18J30A KM21J30 KL25J30 RA C-K (1/98).
Page 2 T ABLE OF CONTENTS PA G E GENERAL F riedrich Room Model Number Code ............................................................................................... ........ 3 Application and Sizing ..............................................
Page 3 FRIEDRICH R OOM MODEL NUMBER CODE K S 10 G 1 0 D 1st DIGIT - FUNCTION S = Straight Cool, V alue Ser ies C = Straight Cool, Budget Series Y = Heat Pump E = Electric Str ip K = Straight Cool, Cha.
Page 4 APPLICA TION AND SIZING In the application and sizing of room air conditioners f or cooling, it is most impor tant to giv e full consideration to all f actors which may contrib ute to the heat loss or gain of the space to be conditioned.
Page 5 INSTR UCTIONS FOR USING COOLING LO AD ESTIMA TE FORM FOR ROOM AIR CONDITIONERS (AHAM PUB. NO . RA C-1) A. This cooling load estimate f or m is suitable f or estimating the cooling load f or comfort air conditioning installations which do not require specific conditions of inside temperature and humidity .
Page 6 COOLING LO AD ESTIMA TE FORM.
Page 7 SPECIFICA TIONS KS10J10 KS12J10 KS12J30A KM18J30A KM21J30 KL25J30A BTUH 12500 18000 21000 25000 10000 12000 12500 18000 20500 24700 E.E.R. 10.0 9.6 9.0 8.3 10.3 9.5 10.0 9.6 9.0 8.2 V olts 230 230 230 230 115 115 208 208 208 208 Amperes 5.8 8.3 10.
Page 8 COMPONENTS OPERA TION & TESTING W ARNING DISCONNECT ELECTRICAL PO WER T O UNIT BEFORE SER VICING OR TESTING COMPRESSORS Compressors are single phase, 15 or 230/208 v olt, de- pending on the model unit. All compressor motors are per manent split capacitor type using only a running ca- pacitor across the star t and r un ter minal.
Page 9 The ov erload is wired in ser ies with the common motor ter minal. The ov erload senses both major amperage and compressor temperature . High motor temperature or amperage heats the disc causing it to open and break the circuit to the common motor ter minal.
Page 10 Figure 5: F an Motor 5. Apply “live” test cord probes on each of the re- maining wires from the speed s witch or system s witch to test intermediate speeds. CAP A CIT OR, R UN A run capacitor is wired across the auxiliar y and main winding of a single phase per manent split capacitor motor such as the compressor and f an motor .
Page 11 Figure 7: System Control P anel THERMOST A T (Figure 9) A cross ambient ther mostat is used on all standard chas- sis units. In addition to cycling the unit in a heating or cooling operation, .
Page 12 RESIST OR (Heat Anticipator) F ailure of the resistor will cause prolonged “off ” and “on” cycles of the unit. When replacing a resistor , be sure and use the e xact replacement.
Page 13 a. Balance Scales - 1/2 oz. accuracy b . Charging Board - 1/2 oz. accuracy 9. High Pressure Gauge - (0 - 400 lbs.) 10. Low Pressure Gauge - (30 - 150 lbs .) 11. V acuum Gauge - (0 - 1000 microns) EQ UIPMENT MUST BE CAP ABLE OF: 1. Recovering CFCs as low as 5%.
Page 14 R O T AR Y COMPRESSOR SPECIAL TROUBLESHOO TING AND SER VICE Basically , troubleshooting and servicing rotar y compres- sors is the same as on the reciprocating compressor with only a fe w exceptions. 1. Because of the spinning motion of the rotar y , the mounts are critical.
Page 15 Troubleshooting Cooling PROBLEM POSSIBLE CA USE T O CORRECT Check for voltage at compressor. 1115 volt and 230 volt units will operate at 10% voltage variance. Set thermostat to coldest position. Test thermostat and replace if inoperative. Hard start compressor.
Page 16 PROBLEM POSSIBLE CA USE T O CORRECT Replace fuse, reset breaker. If repeats, check fuse or breaker size. Check for shorts in unit wiring and compo- nents Plug in power cord Set switch correctly. Test for continuity in each switch position. Check wiring and connections.
Page 17 PROBLEM POSSIBLE CA USE T O CORRECT Compressor attempts to start, or runs for short periods only. Cycles on overload. Check operation of unit. Replace overload if system operation is satisfactory. Allow a minimum of two (2) minutes for pressures to equalize before attempting to restart.
Page 18 PROBLEM POSSIBLE CA USE T O CORRECT Thermostat short cycles. Thermostat differential too narrow. Plenum gasket not sealing, allowing discharge air to short cycle the thermostat. Restricted coil or dirty filter. Thermostat bulb touching thermostat bulb support bracket.
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Page 22 * Not Shown QUIETMASTER "KS" - "KM" SERIES P AR TS LIST REF . P AR T NO . DESCRIPTION APPLICA TION KKK K K SSS M M 111 1 2 022 8 1 JJJ J J 113 3 3 000 0 0 ELECTRICAL P AR TS AA 1 615-628-09 Compressor , T ecumseh, 115 V ., 60 Hz.
Page 23 QUIETMASTER "KS" - "KM" SERIES P AR TS LIST REF . P AR T NO . DESCRIPTION APPLICA TION KKKK K REFRIGERA TION SYSTEM COMPONENTS (Cont.) SSS M M 1111 2 0228 1 JJJJ J 1133 3 0000 0 AA 13 618-027-00 Panel Assemb ly , Left Side .
Page 24 QUIETMASTER "KS" - "KM" SERIES P AR TS LIST REF . P AR T NO . DESCRIPTION APPLICA TION KK KKK SS S M M 11 112 02 281 JJ J JJ 11 333 00 000 AA CHASSIS P AR TS (Cont.) 34 914-004-00 Bolt, Compressor Mounting .................
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Page 27 QUIETMASTER "KL" SERIES P AR TS LIST REF . P AR T NO . DESCRIPTION APPLICA TION K L 2 5 J 3 0 ELECTRICAL P AR TS A 1 615-935-47 Compressor , T ecumseh, 230/208 V ., 60 Hz., 1 Ph., Model A WR5524EXN ...................................
Page 28 QUIETMASTER "KL" SERIES P ARTS LIST REF . P AR T NO . DESCRIPTION APPLICA TION K L 2 5 J 3 0 CHASSIS P AR TS (Cont.) A 23 606-106-02 Blower Wheel .......................................................................................
Page 29 Use F actor y Cer tified P ar ts . . . Printed in U.S .A. Friedrich Air Conditioning Co. 4200 Nor th P an Am Expressw ay • P .O . Bo x 1540 San Antonio , T e xas 78295-1540 • U .
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Friedrich KM21J30 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Friedrich KM21J30 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Friedrich KM21J30 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Friedrich KM21J30 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Friedrich KM21J30, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Friedrich KM21J30.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Friedrich KM21J30. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Friedrich KM21J30 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
