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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