Friedrich SH20M50A Manual

SH15L30-BSH20L30-BHG-SVC-PRTS-07 (3-07)Room Air Conditioners60 Hz Models2007 Service & Parts Manual

10TROUBLESHOOTING (Continued)PROBLEM POSSIBLE CAUSE TO CORRECTFAN MOTOR DOES NOT RUN.Defective switch (On-Off). Check continuity across terminals 2 an

11WIRING DIAGRAMMODELS SH15L30-B and SH20L30-B

12HAZARDGARD CABINET PARTS

13HAZARDGARD CHASSIS PARTS

14HAZARDGARD PARTS LIST REF DESCRIPTION PART NO# MODELS CODEELECTRICAL PARTSSH15L30-BSH20L30-B1 COMPRESSOR 61193549 1 6001 COMPRESSOR 61193550 1 6002

15HAZARDGARD PARTS LIST REF DESCRIPTION PART NO# MODELS CODECHASSIS PARTSSH15L30-BSH20L30-B8 HOLDER, THERMOSTAT 61829800 1 1 99911 KNOB, CONTROL 61493

HG-SVC-PRTS-07 (3-07)FRIEDRICH AIR CONDITIONING CO.Post Offi ce Box 1540 · San Antonio, Texas 78295-15404200 N. Pan Am Expressway · San Antonio, Texas

2TABLE OF CONTENTS Specifi cations ...

3EVAPORATOR AIR TEMP. DEG. FEVAPORATOR TEMP. DEG. FCONDENSER TEMP.DEG. FDischarge TempSuction TempLiquid TempSuper HeatSub-CoolingOPERATING PRESSURESE

4COMPRESSOR WINDING TEST (Figure 2.)Remove the compressor terminal box cover and disconnect the wires from the terminals. Using an ohmmeter, check con

5FAN MOTOR (Figure 4)A 230 volt single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A running capac

6THERMOSTATA cross ambient thermostat is used to maintain the desired comfort level. The thermostat reacts only to a change in temperature at the bulb

7 NOTE: This procedure can be sped up by the use of heat lamps, or by breaking the vacuum with refrigerant or dry nitrogen at 5,000 microns. Pressure

8TROUBLESHOOTINGPROBLEM POSSIBLE CAUSE TO CORRECTUNIT DOES NOT RUN.Power disconnected. Check power source.System switch in “Off” position. Set switch

9TROUBLESHOOTING (Continued)PROBLEM POSSIBLE CAUSE TO CORRECTCOMPRESSOR ATTEMPTS TO START, OR RUNS FOR SHORT PERIODS ONLY. CYCLES ON OVERLOAD.Compress