Bulletin 75-00 J / Page 5
V200 Auto Purger Release of Non-Condensable Gases
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
3. Release of Non-Condensable Gases
As the refrigerant level drops in
the vapor vent the fl oat will fall
allowing the non-condensable gases
to escape through the orifi ce. Non-
condensable gases will continue to
accumulate, producing an elevated
pressure. Once the pressure of the
non-condensable gases exceed
the set point of the vent solenoid
and vent check valve with orifi ce,
the gases are then released into
the bubbler. At the same time the
vent solenoid is activated the water
supply solenoid is also activated.
Non-condensable gases and
residual amounts of refrigerant
entering the bubbler are diluted
into the water. As the water in the
bubbler rises it will overfl ow the
drain tube and exit the drain line.
Once the vent line pressure drops
below the pressure switch set point
the vent solenoid and water supply
solenoid close.
