Related Manuals for Friedrich HazardGard 60 Hz
Summary of Contents for Friedrich HazardGard 60 Hz
- Page 1 2007 Service & Parts Manual Room Air Conditioners 60 Hz Models HG-SVC-PRTS-07 (3-07) SH15L30-B SH20L30-B...
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Page 2: Table Of Contents
TABLE OF CONTENTS Specifi cations ... 3 Performance Data ... 3 Component Operation & Testing ... 4 Compressors ... 4 Thermal Overload ... 4 Checking Compressor Effi ciency ... 4 Fan Motor ... 5 Solid State Relay ... 5 System Control Switch ... 5 Run Capacitor ... -
Page 4: Component Operation & Testing
WARNING DISCONNECT ELECTRICAL POWER TO THE UNIT BEFORE SERVICING OR TESTING COMPRESSORS Compressors are single phase, 208/230 volt. All compressor motors are permanent split capacitor type, using only a running capacitor across the start and run terminal. All compressors are internally spring mounted and externally mounted on rubber isolators. -
Page 5: Fan Motor
FAN MOTOR (Figure 4) A 230 volt single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A running capacitor is wired across the start and run terminals of the motor. The motor is totally enclosed and is protected with a line volt- age overload located internally of the motor. -
Page 6: Thermostat
THERMOSTAT A cross ambient thermostat is used to maintain the desired comfort level. The thermostat reacts only to a change in temperature at the bulb location. Important to the successful operation of the unit is the position of the sensing bulb in relation to the evaporator (see Figure 8). -
Page 7: Hermetic Component Replacement
The introduction of liquid into the low side, without the use of a capillary tube, will cause damage to the discharge valve of the rotary compressor. NOTE: All inoperative compressors returned to Friedrich must have all lines properly plugged with the plugs from the replacement compressor. -
Page 8: Troubleshooting
PROBLEM POSSIBLE CAUSE Power disconnected. System switch in “Off” position. Set switch correctly. Branch circuit fuse blown or circuit breaker tripped. UNIT DOES NOT RUN. Inoperative system switch. Loose or disconnected wiring at switch. Inoperative switch (On-Off). Dirty Filter. Restricted air fl ow. Inoperative thermostat. - Page 9 PROBLEM POSSIBLE CAUSE Compressor attempts to start before system pressures are equalized. Low or fl uctuating voltage. COMPRESSOR ATTEMPTS TO Incorrect wiring. START, OR RUNS FOR SHORT Shorted or incorrect capacitor. PERIODS ONLY. CYCLES ON Restricted or low air fl ow through OVERLOAD.
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Page 10: Troubleshooting
PROBLEM POSSIBLE CAUSE Defective switch (On-Off). Fan capacitor open. Inoperative fan motor. FAN MOTOR DOES NOT RUN. Incorrect wiring of fan circuit. Relay open. Check for seized motor bearings. Bound fan blade or blower wheel. SWITCH (ON-OFF) DOES NOT CUT Selector Switch Relay FAN MOTOR OFF. -
Page 11: Wiring Diagram
WIRING DIAGRAM MODELS SH15L30-B and SH20L30-B... -
Page 12: Cabinet Parts Diagram
HAZARDGARD CABINET PARTS... -
Page 13: Chassis Parts Diagram
HAZARDGARD CHASSIS PARTS... -
Page 14: Parts List
ELECTRICAL PARTS COMPRESSOR COMPRESSOR MOTOR, FAN MOTOR, FAN SWITCH, ON-OFF DPST INSULATOR, ELECTRICAL RELAY, SOLID STATE THERMOSTAT CAPACITOR 20/7.5 440 V. CAPACITOR 25/7.5 440 V HARNESS, WIRE, COMP. REFRIGERATION PARTS EVAPORATOR COIL EVAPORATOR COIL CONDENSER COIL CONDENSER COIL DRIER, LIQUID CAPILLARY TUBE CAPILLARY TUBE VALVE, BY-PASS... - Page 15 DESCRIPTION CHASSIS PARTS HOLDER, THERMOSTAT KNOB, CONTROL DECORATIVE PANEL FAN BLADE, COND. FAN BLADE, COND. BLOWER WHEEL, EVAP. BLOWER WHEEL, EVAP. FAN MOTOR MOUNT FAN MOTOR MOUNT SHROUD, CONDENSER SHROUD, CONDENSER BRACE, COND.SHROUD BLOWER FRONT BLOWER FRONT SCROLL SCROLL BASE PAN BOLT, COMP.
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Page 16: Warranty
ROOM AIR CONDITIONERS 1. Limited warranty – One year. Friedrich warrants that it will provide a replacement for any part of this HazardGard Room Air Conditioner found defective in material or workmanship for a period of one (1) year from the date of original purchase.