Related Manuals for Friedrich KQ08J50A-B
Summary of Contents for Friedrich KQ08J50A-B
- Page 1 2003 International Service & Parts Manual Room Air Conditioners 50 Hz Models MODELS KQ08J50A-B SM24J50B-B EM24J53A-B SS12J50A-A ES12J53A-A YM18J50A-B SM18J50B-B EM18J53A-B YS12J50A-A EX0302 (10-03)
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Page 3: Table Of Contents
TABLE OF CONTENTS General ............................Specifications........................Operating Data ........................Installation Instructions For DC-2 Drain Kit ..............Compressors........................Component Operation And Testing ................Thermal Overload (External)....................Fan Motor..........................Run Capacitor ........................System Control Switch......................System Control Switch......................System Control Switch......................Thermostat ........................... Thermostat Bulb Location .................... -
Page 4: General
GENERAL SM18J50BB SM24J50BB KQ08J50AB SS12J50AA SPECIFICATIONS Btu/hr 18,000 24,000 8,100 12,000 k.Cal./hr 4,536 6,048 2,041 3,024 E.E.R. - Btu/watt E.E.R. - k.Ca./hr. 2.14 2.14 2.39 2.28 Volts 220/240 220/240 220/240 220/240 Amperes 10.2 13.5 Total Watts 2120 2825 1090 Fuse/Breaker Size (Amps) Fan rpm-High 1200 1200... - Page 5 YS12J50AA ES12J53AA EM18J53AB YM18J50AB EM24J53AB SPECIFICATIONS Btu/Hr 12,000 12,000 18,000 18,000 24,000 k.Cal./hr 3,024 3,024 4,536 4,536 6,048 E.E.R. - Btu/watt 11.0 E.E.R. - k.Ca./hr. 2.77 2.28 2.14 2.14 2.14 Volts 220/240 220/240 220/240 220/240 220/240 Amperes 10.2 10.2 13.5 Total Watts 1090 1090...
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Page 6: Operating Data
OPERATING DATA SM18J50BB SM24J50BB KQ08J50AB SS12J50AA OPERATING PRESSURES Suction - PSI 78.0 72.0 80.0 Suction - ATM 4.89 4.62 5.44 Discharge - PSI Discharge - ATM 20.14 19.60 19.05 19.04 ELECTRICAL RATING (Compressor) Amperes (FLA) 10.2 13.5 Locked Rotor Amps 52.0 78.0 20.0... -
Page 7: Installation Instructions For Dc-2 Drain Kit
INSTALLATION INSTRUCTIONS FOR DC-2 DRAIN KIT STEP 1 Before sliding the chassis into the outer shell, turn the chassis on its side and add a drain hole by drilling a 1/2" diameter hole as shown in Figure 1. STEP 2 DC-2 mounts to the bottom of the outer shell as shown in Figure 2 on the right side as you face the unit. -
Page 8: Compressors
COMPONENT OPERATION AND TESTING GROUND TEST Use an ohmmeter set on its highest scale. Touch WARNING one lead to the compressor body (clean point of contact, as a good connection is a must) DISCONNECT ELECTRICAL POWER and the other probe in turn to each compressor TO THE UNIT BEFORE SERVICING OR terminal. -
Page 9: Thermal Overload (External)
THERMAL OVERLOAD (External) TERMINAL OVERLOAD (Internal) Some compressors are equipped with an external Some model compressors are equipped with an overload which is located in the compressor internal overload. The overload is embedded terminal box adjacent to the compressor body. in the motor windings to sense the winding (See Figure 3:) The overload is wired in series temperature and/or current draw. -
Page 10: Run Capacitor
FIGURE 5 FAN MOTOR FIGURE 6 RUN CAPACITOR HOOK–UP FAN MOTOR-TEST 1. Determine that the capacitor is serviceable. CAPACITOR – TEST 2. Disconnect the fan motor wires from the fan 1. Remove the capacitor from the unit. speed switch or system switch. 2. -
Page 11: System Control Switch
SYSTEM CONTROL SWITCH 3. "Low Cool" Position -0 between terminals "L1" ("KQ" Models Only - Figure 7) and "L" and "C." The KQ model unit uses a five position control 4. "Hi Cool" Position - between terminals "L1" switch to regulate the operation of the unit. The and "H"... -
Page 12: System Control Switch
FIGURE 11 SYSTEM CONTROL PANEL FIGURE 9 SYSTEM CONTROL PANEL (Heat Pump & Electric Heat Models) ("SS" & "SM" Models Only) speed, compressor or electric heater is on. 4. "Hi Cool" Position - between terminals "L1" and "C," "H" and "MS." 6. -
Page 13: Thermostat
THERMOSTAT FIGURE 12 SYSTEM CONTROL SWITCH ("KQ" Models) - (See Figure 13) (Heat Pump & Electric Heat Models) The thermostat (part number 613-503-10) is used to cycle the compressor on, and maintain the temperature at the comfort level desired. The thermostat has a range from 63 ±... -
Page 14: Thermostat
TEST FIGURE 14 THERMOSTAT BULB LOCATION Remove the wires from the thermostat. Turn the ("KQ" Models Only) thermostat to its coldest position. Check to see if there is continuity between the two terminals. Turn the thermostat to its warmest position. Check continuity to see of the thermostat contacts open. -
Page 15: Resistor (See Figure 17)
A resistor (anticipator) is positioned within a RESISTOR (See Figure 17) plastic block to supply a small amount of heat (Heat Anticipator) to the bulb area to prevent long "off cycles" in the "Cool-Fan Auto" (MoneySaver) position. Failure of the resistor will cause prolonged "off" (See Figure 16.) A current feedback through and "on"... -
Page 16: Heating Element - (See Figure 19)
TEST: Disconnect the leads from the switch. Depress The control is designed to open at 110°F ± 6°F. the switch to the function being tested. Test continuity below 110°F and for open above 110°F. 1. When YES is selected, there should be continuity between terminals "1"... -
Page 17: Defrost Bulb Location
coil, senses enough icing on the outdoor coil, it 1. Disconnect power to the unit. will interrupt power to the compressor until the coil temperature reaches above 43 degrees, then 2. Disconnect the coil leads. the unit will resume operating in the reverse cycle mode. -
Page 18: Valve, Drain Pan (See Figure 23)
VALVE, DRAIN PAN (See Figure 23) opposite side. The single tube is connected to the compressor discharge line. The center tube During the cooling mode of operation, condensate on the opposite side is the common suction line to which collects in the drain pan is picked up by the compressor. -
Page 19: Sealed Refrigeration System
TEST REVERSING VALVE IMPORTANT ANY SEALED SYSTEM REPAIRS TO HEAT Occasionally the reversing valve may stick in PUMP MODELS REQUIRE THE INSTALLATION the heating or cooling position or in the mid- OF A SUCTION LINE DRIER IN THE SUCTION position. LINE BETWEEN THE COMPRESSOR AND THE REVERSING VALVE. -
Page 20: Hermetic Component Replacement
HERMETIC COMPONENT REPLACEMENT 10. Evacuate the system to an absolute holding pressure of 200 microns or less. The following procedure applies when replacing components in the sealed refrigeration circuit NOTE: This procedure can be speeded up by or repairing refrigerant leaks. (Compressor, the use of heat lamps, or by breaking the condenser, evaporator, capillary tube, refrigerant vacuum with refrigerant or dry nitrogen at... -
Page 21: Rotary Compressor Special
The terminal markings are on the cover gasket. Use your wiring diagram to insure the correct connections. NOTE: All inoperative compressors returned to Friedrich must have all lines properly plugged with the plugs from the replacement compressor. Page 21... -
Page 22: Refrigerant Flow Chart - Heat Pump Models
REFRIGERANT FLOW CHART — HEAT PUMP MODELS Cooling Cycle (Refer to Chart Below) In the cooling cycle, both capillary tubes feed the evaporator coil. Heating Cycle (Refer to Chart Below) In the heating cycle, the one–way check is closed and the refrigerant flows through one capillary only to the condenser. -
Page 23: Routine Maintenance
Routine Maintenance NOTE: Units are to be inspected and serviced by qualified service personnel only. 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. -
Page 24: Troubleshooting Touch Test Chart
TROUBLESHOOTING TOUCH TEST CHART TO SERVICE REVERSING VALVES NORMAL FUNCTION OF VALVE NOTES: VALVE OPERATING * TEMPERATURE OF VALVE BODY CONDITION ** WARMER THAN VALVE BODY POSSIBLE CAUSES CORRECTIONS Normal Cool Cool, Hot, *TVB Cooling as(2) as(1) Normal Heating Cool Hot, Cool, *TVB as(1) as (2) -
Page 25: Troubleshooting Cooling
TROUBLESHOOTING COOLING POSSIBLE CAUSE PROBLEM TO CORRECT Low voltage. Check for voltage at compressor. 115 volt and 230 volt units will operate at 10% voltage variance Thermostat not set cold enough Set thermostat to coldest position. Test thermostat or inoperative. and replace if inoperative. - Page 26 POSSIBLE CAUSE PROBLEM TO CORRECT Replace fuse, reset breaker. If repeats, Fuse blown or circuit tripped. check fuse or breaker size. Check for shorts in unit wiring and components. Unit does not run. Power cord not plugged in. System switch in "Off" position. Set switch correctly.
- Page 27 PROBLEM POSSIBLE CAUSE TO CORRECT Overload inoperative. Opens too Check operation of unit. Replace overload if soon. system operation is satisfactory. Compressor attempts to start before Allow a minimum of two (2) minutes for pressures system pressures are equalized. to equalize before attempting to restart. Instruct customer of waiting period.
- Page 28 PROBLEM POSSIBLE CAUSE TO CORRECT Replace thermostat. Thermostat differential too narrow. Check gasket. Reposition or replace. Plenum gasket not sealing, Thermostat short allowing discharge air to short cycle cycles. thermostat. Clean and advise customer of periodic cleaning of Restricted coil or dirty filter. filter.
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Page 29: Troubleshooting Heating (Heat Pumps)
Troubleshooting Heating (Heat pumps) PROBLEM POSSIBLE CAUSE TO CORRECT Thermostat setting. Set thermostat to a warmer position. No heating; Defective thermostat. Replace — do not attempt to adjust. fan operates. Check compressor wiring. Check for open inter- Compressor not operating. nal or external overload. - Page 30 PROBLEM TO CORRECT POSSIBLE CAUSE Outdoor thermostat does not cut Defective thermostat — replace. off compressor at the pre-selected temperature and bring on the heating Unit does not heat element. adequately. Fresh air or exhaust door open. Check if operating properly. Instruct customer on proper use of control.
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Page 31: Troubleshooting Heating (Cooling/Electric Models)
Troubleshooting Heating (Cooling/Electric Models) PROBLEM POSSIBLE CAUSE TO CORRECT Heater relay or contactor coil open. Check continuity of coil. Heater relay or contactor stuck open, Inspect, test continuity with ohmmeter. Fan Operates pitted or burned. – heating element High limit control open. Check continuity –... - Page 32 POSSIBLE CAUSE TO CORRECT PROBLEM Defective motor. Check and replace. Fan motor does not Open or shorted capacitor. Replace capacitor and check. operate in "Constant" Condenser fan frozen to base pan. Check if drain pan valve is open. If not, replace. or "MoneySaver"...
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Page 33: Troubleshooting Heating (Cooling/Electric Models)
Troubleshooting Heating (Cooling/Electric Models) TO CORRECT PROBLEM POSSIBLE CAUSE Heater relay or contactor coil open. Check continuity of coil. Heater relay or contactor stuck Inspect, test continuity with ohmmeter. Fan operates open, pitted or burned. –heating element Check continuity – if open, replace. High limit control open. - Page 34 PROBLEM TO CORRECT POSSIBLE CAUSE Defective motor Check and replace. Fan motor does not Open or shorted capacitor. Replace capacitor and check. operate in "Constant" Condenser fan frozen to base pan. Check if drain pan valve is open, if not, replace. or "MoneySaver"...
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Page 35: Wiring Diagrams
WIRING DIAGRAM FOR MODEL KQ08J50A-B Page 35... - Page 36 WIRING DIAGRAM FOR MODEL SS12J50A-A Page 36...
- Page 37 WIRING DIAGRAM FOR MODELS ES12J53A-A, EM24J53B-B and EM18J53B-B Page 37...
- Page 38 WIRING DIAGRAM FOR MODELS YM18J50A-B, YS12J50A-A Page 38...
- Page 39 WIRING DIAGRAM FOR MODEL SM18J50B-B and SM24J50B-B Page 39...
- Page 40 "KQ" SERIES CHASSIS PARTS Page 40...
- Page 41 "KQ" SERIES CABINET PARTS Page 41...
- Page 42 "KQ" SERIES PARTS LIST REF. PART NO. DESCRIPTION APPLICATION ELECTRICAL PARTS 615-628-24 Compressor, 220/240V, 50 Hz, 1 Ph, Model RKA5510EXC ....... 617-645-03 Overload, Compressor ..................615-422-00 Cover, Terminal ....................615-421-00 Gasket, Terminal Cover..................615-423-00 Nut, Terminal Cover..................... 618-714-14 Motor, Fan ......................605-000-59 Cord, Electric Supply - 15 Amp, 220 V..............
- Page 43 Curtain, Frame (Left Side) ................. 616-273-03 Angle, Shell Support (Top) ................600-733-00 Gasket, Window Seal (Foam) ................617-173-00 Gasket, Chassis Seal (Foam)................601-691-05 Script, Friedrich ....................910-029-00 Speednut For Script................... 616-377-08 Front, Decorative (Complete) ................616-264-03 Frame, Decorative Front ..................616-266-02 Grille, Discharge Air ..................
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Page 44: Quietmaster "Ss" & "Sm" Series Chassis Parts
QUIETMASTER "SS" & "SM" SERIES CHASSIS PARTS Page 44... -
Page 45: Quietmaster "Ss" & "Sm" Series Cabinet Parts
QUIETMASTER "SS" & "SM" SERIES CABINET PARTS Page 45... - Page 46 QUIETMASTER "SS" & "SM" SERIES PARTS LIST REF PART NO. DESCRIPTION APPLICATION S S S S M M 1 1 2 2 8 4 J J J 5 5 5 0 0 0 A B A ELECTRICAL PARTS A B B 615-628-19 Compressor, Tecumseh, 220/240 V., 50 Hz., 1 Ph., Model RKA5513EXC ..
- Page 47 QUIETMASTER "SS" & "SM" SERIES PARTS LIST PART NO. DESCRIPTION APPLICATIONS S M M CHASSIS PARTS 614-939-05 Knob, Control......................2 2 2 618-072-00 Panel, Control....................... 618-110-00 Panel, Control....................... 619-372-00 Panel, Left Side ....................618-371-00 Panel, Left Side ....................618-170-00 Insulation, Left Side ....................618-170-01 Insulation, Left Side ....................
- Page 48 QUIETMASTER "SS" & "SM" SERIES PARTS LIST REF PART NO. DESCRIPTION APPLICATION S S S S M M 1 1 2 2 8 4 5 5 5 0 0 0 A B B CHASSIS PARTS (Cont.) A B B 618-188-00 Rear Grille......................
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Page 49: Es" - "Em" - "Ys" - "Ym" Series Chassis Parts
"ES" – "EM" – "YS" – "YM" SERIES CHASSIS PARTS Page 49... -
Page 50: Es" - "Em" - "Ym" Series Cabinet & Mounting Parts
"ES" – "EM" – "YM" SERIES CABINET & MOUNTING PARTS Page 50... - Page 51 QUITEMASTER "ES" –"EM" – "YS" – "YM" SERIES PARTS LIST REF. PART NO. DESCRIPTION APPLICATION E Y E S S M M M 1 1 2 8 8 4 J J J 5 5 5 3 0 3 ELECTRICAL PARTS A A A B B B 615-625-19...
- Page 52 QUITEMASTER "ES" –"EM" – "YS" – "YM" SERIES PARTS LIST REF. PART NO. DESCRIPTION APPLICATION E Y E S S M M M 1 1 2 8 8 4 J J J 5 5 5 3 0 3 REFRIGERATION SYSTEM COMPONENTS A A A B B B 619-292-00...
- Page 53 QUITEMASTER "ES" –"EM" – "YS" – "YM" SERIES PARTS LIST APPLICATION REF. PART NO. DESCRIPTION E Y E S S M M M 1 1 2 8 8 4 J J J 5 5 5 3 0 3 A A A CHASSIS PARTS (Cont.) B B B 618-206-00...
- Page 54 QUITEMASTER "ES" –"EM" – "YS" – "YM" SERIES PARTS LIST APPLICATION REF. PART NO. DESCRIPTION E Y E S S M M M 1 1 2 8 8 4 CHASSIS PARTS (Cont.) J J J 5 5 5 3 0 3 A A A B B B 618-089-00...
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- Page 56 Use Factory Certified Parts. FRIEDRICH AIR CONDITIONING CO. Post Office Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 357-4400 · FAX (210) 357-4480 www.friedrich.com Printed in the U.S.A. EX0302 (10-03)