Manuale d’uso / di manutenzione del prodotto racservmn del fabbricante Friedrich
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Ser vice M a n u a l Room Air Conditioners RACServMn (7-03) 2003.
2 Introduction This service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning system component. This service manual was written to assist the professional RAC service technician to quickly and accurately diagnose and repair malfunctions.
3 UNIT IDENTIFICA UNIT IDENTIFICA UNIT IDENTIFICA UNIT IDENTIFICA UNIT IDENTIFICA TION TION TION TION TION Model Number Code SS 0 8 J 1 0 R 1st Digit – Function S = S traight Cool, V alue Series C =.
4.
5 P E RFO RMA NCE R- 2 2 BR EAKER DA T A * REF R IG. FUS E Cool i ng Dis c h arge T em p. S uc t i on Di s c h arge A m p s Loc k ed Charg e i n 60 Hert z Air D r op F. R o ta r Amp OZ . Amp s E Q08J 11-A 50. 5 29. 5 72 262 7. 5 39. 2 20 15 E Q08J 11-B 50.
6 P E RF O RM A NCE R - 2 2 BR EAKE R DA TA * RE F RIG. F U S E Coo l ing D i s c harge T emp. S uc t i on Dis c harge A m ps Loc k ed Charg e i n 60 H ert z A i r Drop F . Rot ar A m p OZ . A m p s RS10J10- C 61 19 82 248 7. 5 44 26 15 RS12J10A-B 57 23 83 271 9.
7 P E RF O RM A NCE R - 22 BR EAKE R DA TA * RE F RIG. F US E Coo l i ng Di s c harge T em p. Suc t i on D is c harge A m ps Loc k ed Charge in 60 H ert z Air D r op F. R o ta r Amp O Z . Amp s E S 1 2J33B -A 58 2 2 82 2 65 5. 76. 6 26. 3 28 20 E S 16J 33A -A 53 27 77 269 7.
8 PER F O R M AN C E R - 2 2 BR EAKE R DA TA * RE F RIG. F US E Coo l ing D is c harge T em p. S uc t i on Dis c harge Am ps Loc k ed Charge in 60 H ert z Air D r o p F. R ota r Amp O Z . Amp s S S 08J 10R -B 61. 4 1 8. 6 87 251 6. 7 29 3 9. '0 15 S S 08J 10R -A 61.
9 P E RF O RM A NCE R - 2 2 BR EAKER DA TA * RE F RIG. F US E Coo l ing D i s c harge T em p. S uc t ion D i s c harge A mps Loc k ed Charge in 60 H ert z Air D r op F. R o ta r Amp OZ . Amp s W S 07A 10E -B 59. 5 19.5 84 300 7. '0 32 19 15 W S 07A 10E -C 59.
10 PERFORMANCE DA T A *YS09J10B-A **YS12J33-A **YM18J34A-A **YL24J35C-A (Heating) AHAM @ 70°F Inside 47°F Out side 8300 12400/12300 17200/17200 23000/22800 @ 70°F Inside 35°F Out side 10700/8900 13000/10600 17300/14300 Evaporator Air T emperature Rise @ 70°F Inside 47°F Out side 19.
11 PERFORMANCE DA T A *WY09A33F-A *WY12A33F-A (Heating) BTUH @70°F Inside 62°F Outside 9700 12400 @70°F Inside 57°F Outside 9300 12000 @70°F Inside 52°F Outside 8800 1 1400 ** @70°F Inside 47°.
12 A good underst anding 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 difficult and time consuming, if not (in some cases) entirely impossible.
13 Circ uit Rati ng Plug Face App earan ce M odel Brea ker or T-D Fuse (NE MA#) ( Facing Bla des) A LL SV and XQ M ODEL S, K S 10J 10, KS1 2 J1 0B, KS15J 10, RS 10J 10, RS 12 J 10A, RS15J 10, SS08 J1 .
14 The overload is wired in series with the common motor terminal. The overload 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 terminal.
15 1. With no power to unit, remove the leads from the com- pressor terminals. 2. Using an ohmmeter , test continuity between terminals C-S and C-R. If no continuity , the compressor overload is open and the compressor must be replaced.
16 MONEYSA VER ® SWITCH (Rocker Switch- See Figure 8) This rocker switch can be depressed to either YES or NO . In the YES position you will get the most economical operation. Both the fan and the compressor will cycle on and of f together , maintaining the selected temperature at a more const ant level and reducing the humidity more efficiently .
17 SYSTEM CONTROL P ANEL ("KQ" Models Only- See Figure 1 0) The KQ Model unit uses a five position control switch to regu- late the operation of the unit. Function of each position (clock- wise rotation) is as follows: SYSTEM CONTROL SWITCH - TEST (See Figure 1 1 ) T urn knob to phase of switch to be tested.
18 1. "Hi Cool" T urns on the compressor and fan at high speed 2. "Lo Cool" T urns on the compressor and fan at low speed. 3. "Fan Only" T urns on the fan at high speed. 4. "Off" T urns everything of f. The switching arrangement of the control is as follows: (See Figure 17) 1.
19 SYSTEM CONTROL SWITCH "WE" & "WY" Models (See Figure 20) An eight position switch is used to regulate the operation of the fan motor , compressor and electric heater . The unit can be operated in cooling or heating mode with the compressor or electric heater on and the fan motor operating on low , medium or high speed.
20 SYSTEM CONTROL P ANEL (See Figure 24) A six-position control switch is used to regulate the operation of the fan motor and compressor . The compressor can be operated with the fan operating at low , medium or high speed. The fan motor can also be operated independently on medium speed.
21 SYSTEM CONTROL SWITCH (See Figure 26) (Heat Pump & Electric Heat Models) An eight position control switch is used to regulate the operation of the fan motor and compressor . The compressor can be operated with the fan operating at low , medium or high speed in the cooling or heating mode.
22 Smart Center Electronic Control Center (See Figure 29) FIL TER ALER T light will come on af ter 250 hours of use. T ouch FIL TER ALERT to reset. TO SET MODE OF OPERA TION When unit is first turned on, it will be in the COOL mode (light on), with constant fan.
23 TO SET HOUR CLOCK T ouch SET HOUR CLOCK to see setting. T o change, touch and hold until hour closest to the actual time appears in the display . MAKE SURE A.M. AND P .M. ARE SET PROPERL Y . (Minutes will NOT show on display .) TO SET THE TIMER NOTE: SET HOUR CLOCK before attempting to set timer functions.
24 THERMOST A T - Models ES, YS, EM, YM, EL, YL (See Figure 32) A cross ambient thermost at is used on all heat pump and electric heat units. In addition to cycling the unit in a heating or cooling op.
25 DEFROST THERMOST A T (Heat Pump Models Only) (See Figure 35) This thermostat is single pole - double throw with contact s between terminals "2" and "3" closing on temperature rise and contact s between terminals "2" and "1" closing on temperature fall.
26 CAP ACITOR, RUN (See Figure 38) A run capacitor is wired across the auxiliary and main winding of a single phase permanent split capacitor motor such as the compressor and fan motor . A single capacitor can be used for each motor or a dual rated capacitor can be used for both.
27 CHECK V AL VE (See Figure 39) A unique two-way check valve is used on the reverse cycle heat pumps. It is pressure operated and used to direct the flow of refrigerant through a single filter drier and to the proper capillary tube during either the heating or cooling cycle NOTE: The slide (check) inside the valve is made of teflon.
28 TESTING REVERSING V AL VE Occasionally , the reversing valve may stick in the heating or cooling position or in the mid-position. When stuck in the mid-position, part of the discharge gas from the compressor is directed back to the suction side, resulting in excessively high suction pressure.
29 HEA TING ELEMENT (See Figure 44) All heat pumps and electric heat models are equipped with a heating element with the exception of the YS09J10. The "YS", "ES" and "EK12" models are equipped with a 3.3 KW element. The "YM", "EM" and "EK18" models are equipped with a 4.
30 HERMETIC COMPONENT REPLACEMENT The following procedure applies when replacing components in the sealed refrigeration circuit or repairing refrigerant leaks.
31 NOTE: In order to access the sealed system it will be necessary to install Schrader type fittings to the process tubes on the discharge and suction of the compressor . Proper recovery refrigerant procedures need to be adhered to as outlined in EP A Regulations.
32 Overcharged Refrigerant Systems Compressor amps will be near normal or higher . Noncondensables can also cause these symptoms. T o confirm, remove some of the charge, if conditions improve, system may be overcharged. If conditions don’t improve, Noncondensables are indicated.
33 A quick check for either condition begins at the evaporator . With a partial restriction, there may be gurgling sounds at the metering device entrance to the evaporator . The evaporator in a partial restriction could be p artially frosted or have an ice ball close to the entrance of the metering device.
34 Routine Maintenance 1. Clean the unit air intake filter at least every 250 to 300 fan hours of operation or when the unit's indicator light is on if so equipped. Clean the filters with a mild detergent in warm water and allow to dry thoroughly before reinstalling.
35 T roubleshooting T ouch T est Chart: T o Service Reversing V alves MALFUNCTION OF V AL VE No voltage to coil. Defective coil. Low charge. Pressure differential too high.
36 T roubleshooting: Cooling Refer to Sizing Charts. Set to coldest position. T est thermostat and replace if necessary . Clean as recommended in Owner ’s Manual. Use steam or detergents to clean. Adjust discharge air louvers. Use high fan speed. Close doors.
37 Compressor runs continually . Does not cycle off. TO CORRECT : Unit undersized. T est cooling performance of unit. Replace with larger unit. Check for partially iced coil. Check temperature split across coil. Check for oil at silver soldered connections.
38 Refer to Installation Instructions for proper installation. Reposition - adjust motor mount. Check that compressor grommets have not deteriorated. Check that compressor mounting part s are not missing, and that shipping blocks have been removed. Check assembly and parts for looseness, rubbing and rattling.
39 TO CORRECT POSSIBLE CAUSE PROBLEM Repair , clean or replace as required. Evaporator drain pan cracked or obstructed. W ater in compressor area. Obstructed condenser coil. Fan blade and slinger ring improperly positioned. Detach shroud from p an and coil.
40 T roubleshooting: Heating (Heat pumps) PROBLEM TO CORRECT POSSIBLE CAUSE Set thermostat to a warmer position. Replace — do not attempt to adjust. Check compressor wiring. Check for open internal or external overload. Check wiring. T est system switch Thermostat setting.
41 Unit does not heat adequately . Outdoor thermostat does not cut of f compressor at the preselected tem- perature and bring on heating element. Fresh air or exhaust door open. Dirty filter . Unit undersized. Defective thermostat - replace. Check if operating properly .
42 TO CORRECT Outdoor thermost at. (Applicable models. ) Compressor will not turn off and operate on heating element only during low outside ambients. Refer to the heating data on applicable models for the preselected temperature the compressor shuts off and the electric element is energized.
43 T roubleshooting: Heating (Cooling/Electric Models) Check and replace. Replace capacitor and check. Check if drain pan valve is open. If not, replace. Check all connections. Check voltage to fan motor . POSSIBLE CAUSE PROBLEM TO CORRECT Fan motor does not operate in "Constant" or "MoneySaver" position.
44 PROBLEM TO CORRECT Refer to the heating data on applicable models for the preselected temperature the compressor shuts off and the electric element is energized. POSSIBLE CAUSE Outdoor thermost at. (Applicable models.) Compressor will not turn off and operate on heating element only during low outside ambients.
45 Electrical Troubleshooting Chart (Heat Pump) Reversing V alve S tuck 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.
46 MODELS RS10J10C, RS12J10A-B, RS15J10A, RS16J30A-A, RS18J30A, RM24J30-A 1 2 3 MOTOR MOUNT TO INNERWALL/ WHITE BROWN OR GREEN/YELLOW TERMINAL COMPRESSOR COMPRESSOR S R C BLACK BLUE RED BLACK ORIENTATION MAY VARY.
47 MODELS SQ06J10B-B, SQ06J10B-A, SQ08J10C-A, SQ08J10D-A GREY HARNESS, COMPR. COMPRESSOR WHITE BLUE RESISTOR ANTICIPATOR CAPACITOR BLUE RED HERM C FAN BLACK BROWN WHITE MOTOR MOUNT TO INNERWALL/ GREEN.
48 MODELS KQ05J10B-B, KQ05E10-C KQ06J10B-A, KQ06J10B-B, KQ06E10-A, KQ06E10-B PART NO. REV. H ERM C FAN 619-046-01 (OPTIONAL) PTCR PTCR (OPTIONAL) CAPACITOR COMPRESSOR FAN MOTOR SYSTEM SWITCH SUPPLY CO.
49 MODELS KQ08J10B-1, KQ08J10B-A, KQ08J10C-A PTCR (OPTIONAL) H ERM C FAN 04 617-581-04 PTCR (OPTIONAL) PART NO. REV. CONFIGURATION OPTIONAL NOTE: BROWN SEE DETAIL " A " WIRE HARNESS S R C BL.
50 MODELS XQ05J10-B, XQ06J10-A, XQ06J10-B, XQ08J10-1, XQ08J10-A, XQ08J10A-A ELECT RONIC CONTR OL BLACK TO CAPACITOR CAPACITOR BRACKET RED BLUE GREEN TO CHASSIS c FAN HERM BROWN WHITE WHITE GREEN/YELLO.
51 MODEL YQ06J10B-A PART NO. REV. 617-581-11 - COMBINATION TERMINAL L E G E N D - GROUND LEAD - PLASTIC INSULATOR - CAPACITOR - COMPRESSOR - INDOOR THERMOSTAT - SYSTEM SWITCH - FAN MOTOR - OVERLOAD PR.
52 MODEL: SC06H10D.
53 MODELS SS08J10R-B, SS08J10R-A, SS09J10C-A, SS10J10AR-A, SS12J10AR-B, SS14J10R-A, SS12J30D-A, SS16J30A-A, SS18J30R-A, SM20J30-A, SM24J30-A DEFROST SENSOR SENSOR ROOM TO CHASSIS BLUE RED BRACKET TO C.
54 MODELS SL28J30B-A, SL35J30-A, SL35J30-B BROWN WHITE TO INNERWALL/ MOTOR MOUNT MOLDED COMPRESSOR HARNESS, COMPRESSOR OVERLOAD COMPRESSOR ALTERNATE BLUE R S C RED BLACK PROTECTOR BLUE ANTICIPATOR RES.
55 MODELS KS10E10-A, KS10J10-B, KS12E10-A, KS12J10B-A, KS15J10-A, KS12J30B-A, KS18J30-A, KM20J30-A, KM24J30-A BROWN WHITE TO INNERWALL/ MOTOR MOUNT MOLDED COMPRESSOR HARNESS, COMPRESSOR OVERLOAD COMPR.
56 MODELS ES12J33B-A, ES16J33A-A, EM18J34B-A, EL25J35-A, EL35J35-B, EK18J34A HEATER BRACKET TO CAPACITOR BLACK OR WHITE M ORANGE BLACK YELLOW YELLOW BLUE RED THERMOSTAT YELLOW RED BLUE 3 L1 4 2 C2 L T.
57 MODELS YS12J33-A, YM18J34B-A, YL24J35C-A HEATER PURPLE CAPACITOR ROCKER SWITCH YELLOW BLUE RED PINK BLACK PURPLE BLUE BLACK WHITE ORANGE BLACK YELLOW BLUE RED THERMOSTAT 1 2 3 BLACK BLACK BROWN WHI.
58 MODEL YS09J10B-A PART NO. REV. 619-142-17 - COMBINATION TERMINAL L E G E N D - GROUND LEAD - PLASTIC INSULATOR - CAPACITOR - FAN MOTOR - OVERLOAD PROTECTOR - INDOOR THERMOSTAT - MONEY SAVER - ANTIC.
59 MODELS EQ08J1 1-A, EQ08J1 1-B HARNESS, COMPR. COMPRESSOR CAPACITOR BLUE RED HERM C FA N BLACK BROWN WHITE GREEN RED BLACK 2 L1 BLUE C MS L SMOOTH (OR BROWN) BLUE SWITCH H BLUE CONDUCTOR SYSTEM SUPPLY CORD BLACK THERMOSTAT 2 1 RED FAN MOTOR BRACKET TO CAPACITOR GREEN MS L1 L1 1 C 2 2 3 H SWITCH LOGIC SYS SW 4 L X = CLOSED 0 = OPEN PART NO.
60 MODELS WS07A10E-B, WS07A10E-C, WS10A10-A, WS12A10E-A, WS09A30E-B, WS12A30E-A, WS15A30-A WHITE (OR YELL0W) BROWN BLACK BLUE RED CAPACITOR FA N c HERM TO GROUNDING SUPPLY CORD SMOOTH CONDUCTOR BROWN .
61 MODELS WE09A33E-B, WE12A33E-A, WE15A33-A L1 L2 BLUE PURPLE WHITE 3 1 2 PINK RED BROWN SMOOTH CONDUCTOR RIBBED CONDUCTOR THERMOSTAT CORD SUPPLY YELLOW CAPACITOR FAN MOTOR BLACK SYSTEM SWITCH BLACK O.
62 MODELS WY09A33F-A, WY12A33G-A TO GROUNDING PART NO. REV. 617-581-02 - OUTDOOR THERMOSTAT ODT - COMBINATION TERMINAL L2 L E G E N D - HEATER LIMIT - HEATER - GROUND LEAD - PLASTIC INSULATOR - THERMA.
63 T esting The Electronic Control 2001 XQ Boards & QME Boards Checking Room T emperature: 1. Check the room temperature at the electronic control pad by pressing at the same time the "F AN SPEED" button and the temperature "UP" button on XQ models.
RACServMn (7-03) FRIEDRICH AIR CONDITIONING CO. Post Office Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · fax (210) 357-4480 ww w .
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 racservmn 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 racservmn - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Friedrich racservmn imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Friedrich racservmn ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Friedrich racservmn, 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 racservmn.
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 racservmn. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Friedrich racservmn 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.
