Condenser And Modulator - Komatsu PC200-8M0 Shop Manual

100 Air conditioner

Condenser and Modulator

Condenser and Modulator
A: Refrigerant inlet (from compressor)
B: Refrigerant outlet (to air conditioner unit)
1. Condenser
2. Modulator
Function
Condenser (1)
q
It cools and liquefies the high-pressure,
high-temperature misty refrigerant from the
compressor.
a If the fin is crushed or is clogged with dust, heat
exchange efficiency is reduced and complete liq-
uefaction of refrigerant becomes impossible. As
a result, pressure in refrigerant circulation circuit
is increased, applying extra load to the engine or
reducing cooling effect. Take extreme care not
to crush or damage the fins when handling them
or checking them in daily inspection.
Specification
Fin pitch (mm)
Height x Width x Thickness
(mm)
Weight (kg)
PC200, 200LC, 220, 220LC-8M0
4.0
421 x 540 x 16
3.2
Function
Modulator (2)
q
a This has desiccant in it. See "Desiccant replace-
ment procedure".
It is used to store liquefied high-pressure,
high-temperature misty refrigerant from the
condenser. It is capable of completely liquefying
the refrigerant even when bubbles are contained
in the refrigerant due to the condenser condition
in heat dissipation.
It eliminates foreign substances in the circulation
line and moisuture in the refrigerant by use of the
built-in filter and desiccant.
Specification
Weight of desiccating
agent (g)
SEN06151-00
290
17
80-100