Conair MPA - Manual (Page 11)

Water-cooled models use tube-in-tube heat exchangers to
condense the hot, compressed, refrigerant gas from the
compressor to a cool liquid.
The cool liquid refrigerant passes through a filter/dryer,
which protects the system from moisture or other contami-
nants. An in-line sight glass gives a visual indication of
proper refrigerant charge and any dangerous moisture pre-
sent in the system.
The refrigerant passes through a thermal expansion valve,
where it expands, cools and is precisely metered into the
refrigerant heat exchanger (evaporator).
The evaporator removes the heat from the process fluid.
H
OW IT
W
ORKS
:
W
ATER
C
OOLED
UGH004/0999 microKool Portable Chillers
D
ESCRIPTION
2-3
Typical water-cooled plumbing diagram