Page 4 / Bulletin 75-00 J
V200 Auto Purger Separating Non-Condensables Gases
WARNING
Do not trap the foul line prior to
entering the purger foul gas line.
Th
is will cause the foul gas to
condense.
!
Pressure Transducer
Suction
Line
Vent
Solenoid
Bubbler
Water Inlet
Water
Drain
line
Level
Sensor
Heat
Exchanger
Oil
Drain
Foul Gas line
Liquid
Drainer
Check Valve
w/ Orifi ce
Liquid
Refrigerant
Line
Check
Valve w/
Orifi ce
Liquid
Solenoid
w/ Check
Valve
& Orifi ce
Vapor Vent
Flow
Controller
Check Valve
w/ Orifi ce
Flow
Controller
Low Temp. Liquid
High Pressure Gas
Non-Condensable
Gases
Water
2. Separating Non-Condensable
Gases & Refrigerant
Th
e foul gas enters the heat
exchanger through a check valve
with an orifi ce and condenses
immediately. Th
e non-condensable
gases remain in a gas state, because
the non-condensable gases require
lower temperatures to condense.
Condensed refrigerant and non-
condensable gases rise through the
heat exchanger and into the vapor
vent. As the liquid rises it lifts an
orifi ce, fl ow controller, to the top of
the vapor vent allowing pressure to
build. Once the pressure exceeds
the high pressure check valve the
refrigerant then fl ows back into the
tube side of the heat exchanger.
Th
e high pressure refrigerant
runs through the tubes of the heat
exchanger absorbing heat from the
high temperature foul gas of the
shell side of the heat exchanger. Th
e
refrigerant begins to boil and vapor
refrigerant, free of non-condensable
gases, is returned to the plant by the
suction line.
Any oil that may collect in the V200
purger can be drained off from the
two oil drains. Before draining the
oil, shut-off the purger and close the
liquid and foul gas valves. Allow the
purger to pump out any remaining
refrigerant and close the suction
line valve. Use normal oil draining
precautions to prevent injury or
property damage.
