Friedrich SH20J30B-A User Manual

AMERICA’S BEST AIR CONDITIONER2002HAZARDGARD®ROOM AIR CONDITIONERService & PartsManualModelsSH14J30B-ASH20J30B-AHG2002 (02/02)

10NOTE:All inoperative compressors returned toFriedrich must have all lines properly pluggedwith the plugs from the replacementcompressor.REFRIGERANT

11PROBLEM POSSIBLE CAUSE TO CORRECTUnit does notrun.PROBLEM POSSIBLE CAUSE TO CORRECTDirty Filter.Restricted air flow.Inoperative thermostat.Short of

12PROBLEM POSSIBLE CAUSE TO CORRECTCompressorattempts tostart, or runsfor shortperiods only.Cycles onoverload.Allow a minimum of two (2) minutes to al

13PROBLEM POSSIBLE CAUSE TO CORRECTReplace selector switch. Replace relay.Selector Switch RelayPROBLEM POSSIBLE CAUSE TO CORRECTRefer to Installation

14WIRING DIAGRAM FOR SH14J30B-A & SH20J30B-A

15HazardGard Cabinet Parts

16HazardGard Chassis Parts

17HAZARDGARD PARTS LISTREF. PART NO. DESCRIPTION APPLICATIONSSHH1240JJ3300BB--AA1 611-935-49 Compressor, Tecumseh, 230/208V; 60 Hz 1 Ph, Model AWG551

18HAZARDGARD PARTS LISTREF. PART NO. DESCRIPTIONSSHH1240JJ3300BB--AAAPPLICATION14 618-028-02 Partition, Control Box ...

19* 618-092-00 Lever, Fresh Air & Exhaust ... 1 1*

2TABLE OF CONTENTSSpecifications ...

20Friedrich Air Conditioning Co.4200 North Pan Am ExpresswayP.O. Box 1540, San Antonio, Texas 78295-1540, USATel. (210) 357/4400 Fax: (210) 357/44

3* Rating Conditions: 80° F. Room Air Temperature and 59% Relative Humidity with 95° F. Outside Air Temperature at 40% Relative Humidity.PERFORMAN

4COMPRESSOR WINDING TEST(See Figure 2.)Remove the compressor terminal box cover anddisconnect the wires from the terminals. Usingan ohmmeter, check c

5FAN MOTOR (Figure 4)A 230 volt single phase permanent split capacitormotor is used to drive the evaporator blower andcondenser fan. A running capaci

6RED DOTRUN CAPACITORFANMOTORCOMPRESSORFIGURE 6 RUN CAPACITOR HOOK–UPCAPACITOR, RUNA run capacitor is wired across the auxiliary andmain winding of

7Note: The temperature must be within therange listed to check the thermostat. Refer tothe troubleshooting section in this manual foradditional info

8LOW AMBIENT BY–PASS VALVEThe HazardGard unit is designed to operate atlow outside ambient temperatures. This isaccomplished by the use of a bypass v

910.Evacuate the system to an absolute holdingpressure of 200 microns or less.NOTE: This procedure can be speeded up bythe use of heat lamps, or by br