Repair Manual

AIR CONDITIONING

62 - 14

REPLACEMENT THE THERMOSTATIC EXPANSION VALVE

ISMO UNTING

Clean the anti-condense sealant material.

Dismount the refrigerant fluid piping attachment flange (1) on the thermostatic expansion valve.

Mount protection covers at the two refrigerant fluid pipes.

Dismounting the thermostatic expansion valve

Replace the thermostatic expansion valve.

EMOUNTING

Perform the dismounting operations in the reverse order.

Lubricate the connections and sealing gaskets (“ O” rings ) with compressor oil,

PA G – SP 10.

Mount the anti-condense sealant material over the refrigerant fluid pipes from the thermostatic

expansion valve.

Thermostatic expansion valve – allows the reduction of the refrigerant liquid which is

coming from the condenser, passing through the tank filter and is continuously adjusting the

refrigerant flow from the evaporator, to reach the compressor in gaseous shape.

The good operation of the air conditioning system is ensured by a dryer filter tank which has

the purpose to protect the unit by absorbing the eventually solid particles found in the oil and

refrigerant liquid circulation, if not, these might block the operation of the thermostatic expansion

valve or may produce the compressor mobile parts worn or gripping.

Refrigerant: HFC 134 a

Quantity of refrigerant: 0,700 kg.

Compressor oil: PAG SP 10

Quantity of compressor oil: 265 cmc.

THERMOSTATIC EXPANSION VA LV E

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