Friedrich HazardGard SH14J30B-A Service & Parts Manual Download | Manualshive

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HG2003(1-03)

200

4

Service & Parts Manual

HazardGard

®

Room Air Conditioner

MODELS

SH14J30B-A
SH20J30B-A

1
2
3
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Summary of Contents for HazardGard SH14J30B-A

Page 1: ...HG2003 1 03 2004 Service Parts Manual HazardGard Room Air Conditioner MODELS SH14J30B A SH20J30B A ...

Page 2: ... Control Switch 6 Run Capacitor 6 Thermostat 6 Low Ambient Bypass Valve 8 Sealed Refrigeration System Repairs 8 Hermetic Component Replacement 9 Special Procedure in the case of Compressor Motor Burn Out 9 Rotary Compressor Special Troubleshooting Service 10 Refrigerant Charge 10 Troubleshooting 11 13 Wiring Diagram 14 Cabinet Parts Diagram 15 Chassis Parts Diagram 16 Parts List 17 19 PAGE ...

Page 3: ...J30B A SH20J30B A SH20J30B A BTUH 14000 14000 19000 18800 E E R Btu watt 8 0 8 0 8 5 8 5 Volts 230 208 230 208 Hertz Phase 60 1 60 1 Amperes 7 8 8 5 9 9 10 8 Total Watts 1750 1750 2235 2210 Fuse Breaker Size 15 20 Fan RPM 1095 1095 Evaporator Air CFM 375 425 Dehumidification Pts hr 4 0 5 7 Width 25 15 16 25 15 16 Height 15 15 16 17 15 16 Depth 27 3 8 27 3 8 Min Ext into Room 5 7 8 5 7 8 Min Ext to...

Page 4: ...temperature The overload will open and disconnect the power to the motor due to high temperatures caused by 1 A locked rotor 2 Excessive running amps 3 High discharge temperature 4 Low refrigerant charge FIGURE 1 INTERNAL OVERLOAD LINEBREAK INTERNALOVERLOAD OHMMETER FIGURE 2 COMPRESSOR WINDING TEST Testing Procedures 1 Terminal C and S no continuity open winding replace compressor 2 Terminal C and...

Page 5: ... side pressure B Above normal low side pressure C Low temperature difference across the coil The compressor valves are faulty replace the compressor GROUND TEST Use an ohmmeter set on its highest scale Touch one lead to the compressor body clean point of contact as a good connection is a must and the other probe in turn to each compressor terminal See Figure 3 If a reading is obtained the compress...

Page 6: ... relation to the evaporator see Figure 8 FIGURE 8 SENSING BULB LOCATION CAPACITOR TEST 1 Remove the capacitor from the unit 2 Check for visual damage such as bulges cracks or leaks 3 For dual rated capacitors apply an ohmmeter lead to the common C terminal and the other probe to the compressor HERM terminal A satisfactory capacitor will cause a deflection on the pointer then gradually move back to...

Page 7: ...on in this manual for additional information on thermostat testing TEST Remove the wires from the thermostat Turn the 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 if the thermostat contacts open ...

Page 8: ... at the bypass valve outlet which connects to the suction process tube When the low side pressure reaches approximately 50 psig the valve will begin to open and the tube will get hot This method will determine if the valve is responding to the suction pressure change FIGURE 9 LOW AMBIENT Bypass VALVE EQUIPMENT REQUIRED 1 Voltmeter 2 Ammeter 3 Ohmmeter 4 E P AApproved Refrigerant Recovery System 5 ...

Page 9: ...with processing as outlined under hermetic component replacement HERMETIC COMPONENT REPLACEMENT The following procedure applies when replacing components in the sealed refrigeration circuit or repairing refrigerant leaks Compressor condenser evaporator capillary tube refrigerant leaks etc 1 Recover the refrigerant from the system at the process tube located on the high side of the system by instal...

Page 10: ...s only into the low side 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 ROTARY COMPRESSOR SPECIAL TROUBLESHOOTING AND SERVICE Basically troubleshooting and servicing rotary compressors is the same as on the reciprocating compressor with only a few exceptions 1 Because of the spinning motion of the r...

Page 11: ... leak Thermostat contacts stuck PROBLEM POSSIBLE CAUSE TO CORRECT Turn to highest temperature setting to see of unit will cycle off Disconnect power to the unit Remove cover of thermostat and check if contact is stuck if so replace thermostat Test switch for open contacts at terminals 2 and 3 with switch in Off position Thermostat set at coldest point Thermostat contacts stuck Switch On Off shorte...

Page 12: ...ge at compressor terminals If voltage is satisfactory replace compressor Replace relay Check windings for continuity and resistance Direct test compressor If direct test fails replace compressor Thermostat contacts not closing Low voltage supply Switch On Off inoperative Open capacitor Internal overload open Relay open Open or shorted compressor windings PROBLEM POSSIBLE CAUSE TO CORRECT Set to co...

Page 13: ...d sealer from base pan and shroud Apply new sealer reinstall and check Clean with steam or detergent Adjust fan blade to 1 2 clearance from condenser coil Evaporator drain pan cracked or obstructed Water in center section of base pan compressor area Dirty Condenser coil Fan blade and slinger ring improperly positioned Clean obstructed drain trough Evaporator drain pan broken or cracked Reseal or r...

Page 14: ...14 WIRING DIAGRAM FOR SH14J30B A SH20J30B A ...

Page 15: ...15 HazardGard Cabinet Parts ...

Page 16: ...16 HazardGard Chassis Parts ...

Page 17: ... 891 00 Connector E M T 1 1 618 213 07 Harness Wire Compressor 1 1 618 208 01 Harness wire Fan Motor 1 1 REFRIGERATION SYSTEM COMPONENTS 9 618 501 00 Coil Evaporator 1 9 618 500 01 Evaporator 1 10 620 504 00 Condenser 1 10 620 504 01 Condenser 1 013 900 05 Capillary Tube 064 I D x 25 Long 1 037 605 18 Capillary Tube 054 I D x 27 3 8 Long 2 608 095 00 Valve By Pass 1 608 095 00 Valve By Pass 1 603 ...

Page 18: ...05 420 03 Fan Blade 1 22 605 420 04 Fan Blade 1 23 606 106 05 Blower Wheel 1 23 606 106 01 Blower Wheel 1 24 618 033 00 Inner Wall 1 1 24 618 047 00 Inner Wall 1 1 25 618 025 00 Mount Motor 1 25 618 041 00 Mount Motor 1 26 618 036 01 Shroud 1 26 618 049 00 Shroud 1 27 618 026 00 Brace Shroud 3 3 28 618 169 00 Insulation Inner Wall 1 1 28 618 169 01 Insulation Inner Wall 1 1 29 618 173 00 Blower Fr...

Page 19: ...8 01 Angle Wingboard Side 2 2 41 618 198 03 Angle Wingboard Side 2 2 42 606 103 03 Gasket Vinyl 1 1 608 460 16 Bag Assembly Hardware 1 1 617 173 01 Gasket Chassis Foam 1 1 618 116 20 Carton Shipping 1 1 618 116 21 Carton Shipping 1 1 618 139 00 Pad Shipping 1 1 618 118 00 Pad Shipping 2 2 618 118 01 Pad Shipping 2 2 618 141 01 Pad Shipping Top 1 1 43 600 733 00 Gasket Window Foam 1 1 Not Shown OPT...

Page 20: ...tory 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 ...

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