Parker V300, Product Bulletin

Page: 4 / 36

Bulletin 76-00 B
4
CL
EA
RA
N
CE
Z
O
N
E
4.7 in
[119.02 mm]
4.7 in
[119.02 mm]
LIQ
REFRIGERA
LI
PRESSURE
GUAGE
SUCTION
LINE
FOUL GAS
LINE
5.9 in
[151.02 mm]
15.2 in
[387.34 mm]
40.4 in
[1025.41 mm]
22.0 in
[558.80 mm]
MOUNTING POINT
16.3 in
[414.34 mm]
20.4 in
[517.53 mm]
MOUNTING POINT
33.6 in
[853.12 mm]
16.3 in
[413.61 mm]
119.02 mm
(4.7 in)
119.02 mm
(4.7 in)
151.02 mm
(5.9 in)
Foul Gas
Line
Liquid
Refrigerant
Line
Suction Line
Pressure
Gauge
558.80 mm
(22.0 in)
Mounting
Point
1025.41 mm
(40.4 in)
414.34 mm
(16.3 in)
517.53 mm
(20.4 in)
Mounting Point
413.61 mm
(16.3 in)
853.12 mm
(33.6 in)
387.34 mm
(15.2 in)
CLEARANCE ZONE
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/ Orifice
Liquid
Refrigerant
Line
Check
Valve w/
Orifice
Liquid
Solenoid
w/ Check
Valve
& Orifice
Vapor Vent
Flow
Controller
Check Valve
w/ Orifice
Flow
Controller
Low Temp. Liquid
High Pressure Gas
Non-Condensable
Gases
Water
Figure 4: Purger Release of Non-Condensable Gases
Figure 5: Purger Dimensional Information
After going through the control orifice the foul gas passes
over the tubes in the heat exchanger and residual refrigerant
is condensed . Liquid accumulation in the shell side of
the heat exchanger continues until the level reaches the
differential check valve, where the liquid is recycled back
to the liquid makeup side of the heat exchanger . This
“Recycling” of ammonia reduces the need to call for more
makeup refrigerant to maintain the liquid level on the tube
side of the heat exchanger .
The Rapid Purger V300 can only purge one point at any given
time . In the separation of non-condensable gases, purging is
done automatically and effectively with built in control features
such as purge sampling .
In automatic mode, each purge point is sampled for a minimum
of five minutes . If the purge conditions are not met within the
sample time limit, the Rapid Purger continues to the next purge
point . When a purge point meets the purge conditions within
the sample time limit, the Rapid Purger starts the purge cycle .
The purge cycle shuts off when non-purge conditions are met .
3 . Release of Non-Condensable Gases (See Figure 4 for a graphic
representation of this cycle)
Non-condensable gases will continue to accumulate in
the “Vapor Vent Float” chamber as it is separated from
the refrigerant . Once the volume of these gases in the
float chamber rises past the target pressures, based on the
sampled temperature, the vent and water solenoids are
energized and the non-condensable gases are released into
the water bubbler . For safe disposal, the non-condensable
gases are diluted in the water .
Any oil that may collect in the V300 purger can be drained 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
Installation
All purgers are packed for a maximum protection . Unpack
carefully . Check the carton to make sure all items are unpacked .
Save the enclosed instructions for the installer and eventual user .
Do not remove the protective coverings until the purger is ready to
be installed .
The V300 Rapid Purger includes three
1
⁄
2
" socket weld (SW) shut-
off isolation valves used for the suction, liquid, and foul gas lines .
A
1
⁄
4
" national pipe thread (NPT) 30-150 psig ammonia pressure
gauge is also included for monitoring the suction line .
The V300 Rapid Purger includes a provision for customers to have
the option to install Parker Safety Relief Valves . The recommended
safety relief valve is the SR1R which uses a
1
⁄
2
" inlet connection and
a
3
⁄
4
" outlet connection .
Once the purger is ready to be installed we recommend the
following installation procedure . These instructions are for a new
system installation . If the purger is being installed in an existing
system or replacing an existing purger, the high pressure liquid,
foul gas, and suction lines must be isolated and pumped out .
1 . Mount the Rapid Purger to a wall or structure that can easily
handle its weight and installation hardware . The approximate
weight of the purger is 34 .5 kg (76 lbs) . Figure 5 provides
dimensional information for the mounting holes, line locations
and overall purger height, width and length .
If mounting the purger outside it is recommended that it be
protected from natural elements like the sun, rain, etc . The
outside ambient temperature cannot exceed a range of 2°C to
54°C (35°F to 130°F) .
*Graphics for illustration only .
*