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2007 Service & Parts Manual
Room Air Conditioners
60 Hz Models
SH15L30-B
SH20L30-B
HG-SVC-PRTS-07 (3-07)
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TABLE OF CONTENTS Specifi cations ......................................................................................................................................................... 3 Performance Data .................................................................................................................................................. 3 Component Operation & Testing ................................................................................................................
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3 Performance Data: Cooling EVAPORATOR AIR EVAPORATOR OPERATING R-22 BREAKER ELECTRICAL RATINGS TEMP. DEG. F TEMP. DEG. F PRESSURES REF. FUSE CONDENSER Discharge Suction Liquid Super Sub- Evap Motor TEMP. Locked Temp Temp Temp Heat Cooling CFM RPM Discharge Temp. Amps Amps Charge 60 Hertz DEG. F E(in) E(out) Suction Discharge Rotor Air Drop F. Cool Heat in OZ. Amps Amps 60 Hz Models SH15L30-B 54 26 52 56 206 129 61 108 16 98 76 258 8.2 - - 28.5 363 1100 15 SH20L30-B 46 34 46 46 125 196 52
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COMPONENT OPERATION AND TESTING Testing Procedures 1. Terminal "C" and "S" – no continuity – open winding WARNING – replace compressor. DISCONNECT ELECTRICAL POWER TO THE 2. Terminal "C" and "R" – no continuity – open winding UNIT BEFORE SERVICING OR TESTING – replace compressor. 3. Terminal "R" and "S" – no continuity – open winding COMPRESSORS - replace compressor. Compressors are single phase, 208/230 volt. All compressor 4. Terminal "C" and the shell of the compressor – continuity moto
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FAN MOTOR (Figure 4) CAPACITOR, RUN A 230 volt single phase permanent split capacitor motor is A run capacitor is wired across the auxiliary and main winding used to drive the evaporator blower and condenser fan. A of a single phase permanent split capacitor motor such as the running capacitor is wired across the start and run terminals compressor and fan motors. A single capacitor can be used for of the motor. each motor or a dual rated capacitor can be used for both. The motor is totally en
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THERMOSTAT FIGURE 9 A cross ambient thermostat is used to maintain the desired LOW AMBIENT comfort level. The thermostat reacts only to a change in Bypass VALVE 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). FIGURE 8 SENSING BULB LOCATION SEALED REFRIGERATION SYSTEM REPAIRS Equipment Required: 1. Voltmeter RANGE: Thermostat 2. Ammeter (Part No. 618-225-02) 3. Ohmmeter 6
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12. Restart the unit several times after allowing pressures HERMETIC COMPONENT REPLACEMENT to stabilize. Pinch off the process tubes, cut and solder The following procedure applies when replacing components the ends. Remove the pinch off tool, and leak check the in the sealed refrigeration circuit or repairing refrigerant leaks. process tube ends. (Compressor, condenser, evaporator, capillary tube, refrigerant leaks, etc.) SPECIAL PROCEDURES IN THE CASE OF 1. Recover the refrigerant from
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TROUBLESHOOTING PROBLEM POSSIBLE CAUSE TO CORRECT Power disconnected. Check power source. System switch in “Off” position. Set switch correctly. Branch circuit fuse blown or Replace fuse, reset breaker. If repeats, check fuse or breaker circuit breaker tripped. size. Check for shorts in unit wiring and components. UNIT DOES NOT RUN. Inoperative system switch. Test for continuity. Loose or disconnected wiring Check wiring and connections. at switch. Connect per wiring diagram. Inoperative swit
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TROUBLESHOOTING (Continued) PROBLEM POSSIBLE CAUSE TO CORRECT Compressor attempts to start Allow a minimum of two (2) minutes to allow pressures to before system pressures are equalize before attempting to start. equalized. Check voltage with unit operating. Check for other Low or fl uctuating voltage. appliances on the circuit. Unit should be on separate circuit COMPRESSOR for proper voltage, and be fused separately. ATTEMPTS TO Incorrect wiring. Connect per wiring diagram. START, OR RUNS
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TROUBLESHOOTING (Continued) PROBLEM POSSIBLE CAUSE TO CORRECT Defective switch (On-Off). Check continuity across terminals 2 and 3. Check by substituting a known good capacitor of the same Fan capacitor open. rating. Inoperative fan motor. Direct test fan motor. FAN MOTOR DOES NOT RUN. Incorrect wiring of fan circuit. Connect per wiring diagram. Relay open. Replace Relay. Check for seized motor bearings. Rotate by hand, add oil, if noisy, replace. Bound fan blade or blower wheel. Adjust for pr
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WIRING DIAGRAM MODELS SH15L30-B and SH20L30-B 11
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HAZARDGARD CABINET PARTS 12
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HAZARDGARD CHASSIS PARTS 13
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HAZARDGARD PARTS LIST REF DESCRIPTION PART NO# MODELS CODE ELECTRICAL PARTS 1 COMPRESSOR 61193549 1 600 1 COMPRESSOR 61193550 1 600 2 MOTOR, FAN 618714261110 2 MOTOR, FAN 61871427 1110 5 SWITCH, ON-OFF DPST 60935300 1 1 130 * INSULATOR, ELECTRICAL 61829700 1 1 399 * RELAY, SOLID STATE 61108800 2 2 399 6 THERMOSTAT 61822502 1 1 120 7 CAPACITOR 20/7.5 440 V. 61080546 1 150 7 CAPACITOR 25/7.5 440 V 61080547 1 150 * HARNESS, WIRE, COMP. 61821308 1 1 399 REFRIGERATION PARTS 9 EVAPORATOR COIL 61850
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HAZARDGARD PARTS LIST REF DESCRIPTION PART NO# MODELS CODE CHASSIS PARTS 8 HOLDER, THERMOSTAT 61829800 1 1 999 11 KNOB, CONTROL 61493915 1 1 761 17 DECORATIVE PANEL 61822662 1 1 760 22 FAN BLADE, COND. 60542003 1 710 22 FAN BLADE, COND. 60542004 1 710 23 BLOWER WHEEL, EVAP. 60610616 1 700 23 BLOWER WHEEL, EVAP. 60610617 1 700 25 FAN MOTOR MOUNT 61802500 1 900 25 FAN MOTOR MOUNT 61804100 1 900 26 SHROUD, CONDENSER 61803601 1 720 26 SHROUD, CONDENSER 61804901 1 720 27 BRACE, COND.SHROUD 61802600
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Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www.friedrich.com ® HAZARDGARD ROOM AIR CONDITIONERS LIMITED WARRANTY LIMITED ONE YEAR PARTS WARRANTY 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. 2. Limited warranty – One year. The Friedrich warranty al
