Structural Concepts Harmony HMBC3 handleiding

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Structural Concepts

37 pagina's

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Handleiding

TROUBLESHOOTING - EVAPORATOR SYSTEM (TRAINED SERVICE PROVIDERS ONLY)

CONDITION TROUBLESHOOTING

Low Suction Pressure

Check for low refrigerant.

Check that Expansion Valve isn’t restricted.

Check that Liquid Line or Filter isn’t restricted.

Check that Evaporator Motors are working.

Check for Superheat setting.

Check that the Thermostatic Element charge isn’t depleted.

Check that the Coil is not iced up.

High Suction Pressure

Check that Refrigerant Charge isn’t too high.

Check that Compressor Valves aren’t faulty.

Check that there is no air seepage around Condensing Coil.

Check that the Cooling Load isn’t high.

Check that Superheat adjustment isn’t low.

Check TXV Bulb Installation

a. Poor thermal contact.

b. Warm location.

Check Compressor: Low capacity means it is undersized for its application.

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