Parker V300 User manual

Contact Information:
Parker Hannin Corporation
Refrigerating Specialties Division
2445 South 25th Avenue
Broadview, IL 60155-3891
phone [phone]
fax [phone]
www.parker.com/refspec
Rapid Purger
Product Bulletin 76-00 B
Type: V300
Purpose:
The V300 rapid purger from Parker
is designed to safely and efciently
remove non-condensable gases
from ammonia refrigeration systems.
The V300 is an improvement over
the successful V200 series and
offers several new features and
benets.
The V300 is equipped with a
RS-485 communication port for
easy interface to controller data
transmission. All of the parameters
accessible via the HMI cable
are now accessible via the serial
channel. Further advancements
include extended data logging time
and password protection for factory
calibration settings.
Like its predecessor the V200, the
V300 can be used with 120 or 240
VAC and can handle from 4 to 20
purge points.
Product Features:
• Safety relief provision
• Made from 100% corrosion free
components
• RS-485 communication capability
• Records purge cycles and purge
time up to 12 weeks
• Password protection prevents
tampering
• Multiple language display
• Factory calibrated for plug and play
functionality
• Automatically adjusts vent
pressures based on system
conditions
• Proprietary microprocessor control
for all sensing
• Includes 1/2" Globe-T SW isolation
valves for the liquid, foul gas and
suction lines
• Includes a 30"-150 psig ammonia
gauge and encapsulated leaded
coils
• Ammonia loss history

Bulletin 76-00 B
2
High
Pressure
Receiver
Evaporative
Condensers
Auto Purger
(Model V300)
High Pressure
Liquid Main
Suction
Line
Liquid
Refrigerant
Line
Gas
Refrigerant
Line
Foul
Gas
Line
P
P
P
P
P
Table of Contents
Technical Data...............................................2
Introduction.................................................2
Purge Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation ..................................................4
Startup Instructions ..........................................7
Nameplate Information ......................................7
Password Setting Instructions .................................8
Purge Type and Points Setting Instructions .....................9
Calibrate Pressure Input and RTD ............................11
Remote Communications Setup/Assembly Instructions ........12
Gearmo USB to RS485 Adaptor Driver Installation Instructions . 13
Remote Communications Setup Instructions - Option 1 ........14
Remote Communications Setup Instructions - Option 2 ........17
Technical Data
Liquid Temperature Range .......... -20°C to 50°C (5°F to 120°F)
Ambient Temperature Range ......... 2°C to 54°C (35°F to 130°F)
Suction Temperature Range...........-29°C to 4°C (-20°F to 40°F)
Maximum Rated Pressure ....................21.0 bar (305 psig)
Suction Temperature Range (High) ......-8°C to 4°C (16°F to 40°F)
Suction Temperature Range (Low)....-29°C to -9°C (-20°F to 15°F)
120 Volt Purger -
Complete Unit
240 Volt Purger -
Complete Unit
Part
No.
Purge
Points Application Part No.
Purge
Points Application
186540 4
Low Temp
186545 4
Low Temp
186541 8 186546 8
186542 12 186547 12
186543 16 186548 16
186544 20 186549 20
112150 4
High Temp
112155 4
High Temp
112151 8 112156 8
112152 12 112157 12
112153 16 112158 16
112154 20 186183 20
Communication Protocol....................................18
Maintenance Instructions ...................................19
Parts Kit Informaton ........................................20
Service Pointers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Purge Point Initiation/Termination Instructions ...............25
Setting Communications and Unit Instructions ................27
Display Setting Instructions..................................28
Language Setting Instructions................................29
Date/Time Setting Instructions...............................29
Date/Time Format Setting Instructions .......................31
History Viewing Instructions .................................32
Clearing History Instructions ................................33
Factory Test Mode Instructions...............................34
Introduction
Non-condensable gases such as air, hydrogen, nitrogen and
hydrocarbons reduce the overall eciency of refrigeration
systems. e eects of non-condensable gases, in a refrigeration
system, increase the system operating pressures. ese in turn
negatively aect system performance. Increased compressor
discharge temperature, higher energy costs, reduced system
eciency, leaks due to higher pressures, and increased wear on
mechanical components are all negative consequences of non-
condensable gases in refrigeration systems.
e build-up of non-condensable gases in the system can be
attributed to several factors. ese include inadequate system
evacuation during service of system equipment, additions of
refrigerant, leaks through external seals on equipment as well as
refrigerant, and oil decomposition.
Common indicators of non-condensable gases in the system
are excessively high condensing pressure or temperature and
deviations in the pressure and temperature relationship at
saturation conditions. is can be determined by checking the
temperature and pressure relationship at a known point in the
system where the refrigerant is saturated, such as the condenser
drain legs or high pressure receiver, as illustrated in Figure 1.
Figure 1: Purge Point (P) Locations

Bulletin 76-00 B
3
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/ Orice
Liquid
Refrigerant
Line
Check
Valve w/
Orice
Liquid
Solenoid
w/ Check
Valve
& Orice
Vapor Vent
Flow
Controller
Check Valve
w/ Orice
Flow
Controller
Low Temp. Liquid
High Pressure Gas
Non-Condensable
Gases
Water
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/ Orice
Liquid
Refrigerant
Line
Check
Valve w/
Orice
Liquid
Solenoid
w/ Check
Valve
& Orice
Vapor Vent
Flow
Controller
Check Valve
w/ Orice
Flow
Controller
Low Temp. Liquid
High Pressure Gas
Non-Condensable
Gases
Water
A higher temperature measured at this point, compared to the
saturation pressure, indicates the presence of non-condensable
gases in the system.
Purging non-condensable gas from a refrigeration system can be
accomplished manually, mechanically or automatically. Manual
purging generally involves personnel removing air from specied
purge “points” within the system through hand shut o valves
routed to a water bucket. Mechanical purging is achieved by use
of a device which will allow air to escape to a water reservoir
when air is present. e latter method is automatic purging,
which is generally achieved by the use of a self-contained system
incorporating microprocessor controls. ese are designed to
sample the non-condensable gases and refrigerant mixture and
purge when non-condensable gases are present.
Mechanical and automatic air purging units, commonly referred
to as “purgers”, are manufactured by several companies. Each
manufacturer’s purger operates in its own unique way. is article
will focus specically on the automatic purgers manufactured by
Parker Hannin Refrigerating Specialties Division.
e most common purge points in a refrigeration system are at
the condenser drain, pilot receivers, thermosyphon receivers,
high pressure receivers, liquid drain header, equalizing lines,
and low velocity-high side areas.
Purge points should be located to ensure no liquid refrigerant
is drawn into the purger. e Rapid Purger V300 has a liquid
drainer at the foul gas inlet to prevent any liquid refrigerant from
entering the shell side of the heat exchanger.
Figure 2: Purger Fill & Pre-Cool Cycle
Purge Cycle
e purge cycle consists of three main processes: ll & pre-cool,
separation of non condensable gases & refrigerant, and the safe
release of the non-condensable gases.
1. Fill & Pre-Cool (See Figure 2 for a graphic representation of
this c ycle)
is cycle begins with high pressure liquid ammonia feeding
through the liquid solenoid, check valve and orice (causing
expansion) into the V300’s heat exchanger. e liquid
solenoid stays energized until the level of ammonia in the
heat exchanger is sensed by the level sensor. e level sensor
is strategically located so that all of the tubes in the heat
exchanger are lled with liquid ammonia. is guarantees
the highest level of performance.
e V300 Rapid Purger will stay in the “Pre-Cool” mode until
the shell of the heat exchanger reaches a temperature of 4.4ºC
(40ºF) or lower. is is determined by the temperature of the
suction the purger is tied into. Once the purger reaches the
required temperature, the purger will enter the active mode.
To prevent a vacuum type situation, the A2B evaporator
pressure regulator, located on the return suction line, is set at
Figure 3: Purger Separation of Non-Condensable Gases &
Refrigerant Cycle
0.34 barg (5 psig). is will prevent the heat exchanger from
reaching temperature below -29ºC (-20ºF).
2. Separation of Non-Condensable Gases & Refrigerant (See
Figure 3 for a graphic representation of this cycle)
Once the ll and pre-cool cycle reaches the desired
temperature and liquid level, it selects a purge point and
commences a purge cycle by activating a solenoid located on
the high side of the system, as illustrated in Figure 1.
With an active purge point, the non-condensable gases and
refrigerant mix, also known as foul gas, enters the shell side
of the heat exchanger through the liquid drainer, check valve
and a ow control orice. Any liquid that has condensed in
the purge lines will collect in the liquid drainer and return
directly to the suction. If the foul gas line does not contain
condensed liquid and any remaining liquid in the liquid
drainer evaporates to the suction, the liquid drainer ow
control ball will prevent any foul gas from entering the
suction line by blocking the orice at the bottom of the liquid
drainer tank, forcing the foul gas through the ow control
orice.
*Graphics for illustration only.
* *

Bulletin 76-00 B
4
CLEARANCEZONE
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/ Orice
Liquid
Refrigerant
Line
Check
Valve w/
Orice
Liquid
Solenoid
w/ Check
Valve
& Orice
Vapor Vent
Flow
Controller
Check Valve
w/ Orice
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 orice 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
dierential check valve, where the liquid is recycled back
to the liquid makeup side of the heat exchanger. is
“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.
e Rapid Purger V300 can only purge one point at any given
time. In the separation of non-condensable gases, purging is
done automatically and eectively with built in control features
such as purge sampling.
In automatic mode, each purge point is sampled for a minimum
of ve 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.
e purge cycle shuts o 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
oat 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-o 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.
e 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. e 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. e
outside ambient temperature cannot exceed a range of 2°C to
54°C (35°F to 130°F).
*Graphics for illustration only.
*

Bulletin 76-00 B
5
Foul Gas Line
Flange w/ Stub
High Pressure Liquid Line
Flange w/ Stub
Suction Line
Flange w/ Stub
1⁄2" SW
Shut-Off Valve
1⁄2" SW
Shut-Off Valve
1⁄2" SW
Shut-Off
Valve
Oil Drain Valve
(Shell Side)
Oil Drain Valve
(Tube Side)
Water
Line
1⁄4" NPT
Water Solenoid
Bubbler
3⁄4"-14 FPT
Water Drain Line
Under Side View: Water
line connected to the water
solenoid
WARNING
Do not trap the foul gas line prior to
entering the purger. is will cause
the foul gas to condense.
!
Figure 6: Purger Flange Line Connections
Figure 7: Water Line Connections
Make sure to leave access for servicing the unit if required. e
recommended clearance zone, as shown in Figure 5, is 254 mm
(10") for the top and sides. e bottom of the purger must be
free of obstructions to allow for water drain and oil removal.
2. Properly locate, support and align the systems high pressure
liquid, foul gas and suction lines with the purger.
Note: To prevent oil from entering the heat exchanger and
reducing performance of the purger, it is recommended to
tie the liquid line in from the side or top of the desired liquid
piping. We also recommended connecting the suction line
from the purger to the low side system suction. is will allow
setting of the A2 regulator for optimal performance down to a
minimum of 0.34 barg (5 psig).
3. Weld in the three 1⁄2" SW shut-off isolation valves. Make sure
the connections are free from debris and corrosion. For more
installation instruction on hand shut-off valves, refer to the
RSBHV safety bulletin located in the purger packet.
Before welding the system’s high pressure liquid, foul gas and
suction lines to the hand shut-off valves, they need to be in the
open position. Normally, it is not necessary to disassemble
valves for welding. However, if welding is prolonged enough
to overheat the body, a wet rag should be wrapped around
the valve bonnet and upper body during welding. e codes
applicable to the welding of socket weld valves require that
the pipe be inserted into the socket until bottomed against the
stop. e pipe is then to be backed out approximately 1⁄16 of an
inch before welding.
4. Remove the purger flange connections, with the welded stubs,
from the high pressure liquid, foul gas and suction line. e
anges are highlighted, in gray, in Figure 6.
5. Wait several minutes before welding the purger anges to
the hand shut-o valves. Be certain the mating surface of the
ange is parallel to the mating ange and perpendicular to the
pipe axis. Again, the hand shut-off valves must be in the open
position prior to welding. Check the connections to make sure
they are free from debris.
6. After the shut-o valves and purger anges have been installed
wait several minutes to cool down from the welding process.
e hand shut-o valves must be put in the closed position to
prevent any ammonia from entering the heat exchanger prior
to nishing the installation. If the valves are closed before the
heat dissipates from the welds, the seat can be damaged.
7. Using the same ange nuts and bolts, reconnect the anges
to the purger and tighten them progressively. For more
information on ange torque specication, please reference
the IIAR 2-2008 Section 10 documentation.
8. Purge the water line to remove any contaminants prior to
connecting it to the water feed solenoid, highlighted in gray in
Figure 7. is will prevent the solenoid valve, ow switch and
water lines from becoming plugged. Apply Teon tape/paste to
the 1⁄4" NPT threaded nipple prior to threading it into the water
solenoid.
9. Install a water drain line for the bubbler. e connection for
the drain line is 3⁄4"-14 FPT. Follow your local codes on how to
properly dispose of the water after a purge.
10. Check and verify both oil drain valves, shown in Figure 6, are
closed by removing the seal cap and turning the adjustment
stem clockwise. If the adjustment stem does not move it means
the valve is fully seated. Do not over tighten; it can damage the
seat and be a potential leak point.
11. Open the purger control panel to start wiring the purge points
and power supply, see Figure 8 for wiring diagram. All common
lines should tie together at the DIN rail terminal blocks.
Coil common, shown in Figure 8, on the purge point solenoids
connections are common to the relay. Incoming line power
(120/240 volts) should be supplied to these terminals. An
incoming neutral should be supplied to one of each of the coil

Bulletin 76-00 B
6
LIQUID SOL
VENT / WATER SOL
1. BEFORE SETTING PURGER CYCLE
CHECK THAT WATER MAKE-UP
TANK CONTAINS WATER.
PRESS INIT KEY TO FILL.
2.
DEFINE AND SET EACH POINT
REQUIRED IN SYSTEM.
3.
SETUP PURGE CYCLE TYPE
(AUTO, MANUAL, OR TIME)
MENU INIT
ENTERTERM
Figure 8: Purge Point & Power Wiring Diagram
Figure 9: Control Panel - Displaying Initial Startup Screen
leads. e other coil lead should be attached to the N.O. or coil
neutral terminal for each independent purge point solenoid
(S6N, S8F).
e terminal blocks supplied with the purger accept wire
from 12-22 AWG wire. For wire sizes smaller than 12 AWG,
wire pin terminals are supplied to make installation easier.
It is recommended to use the pin terminals for the optimal
electrical connection. e maximum allowable torque for the
eld wiring terminals is 0.4 Nm (3.5 in-lbs).
Input power to the controller should not exceed a maximum
of 265 VAC. If voltage spikes in excess of this are expected, a
surge suppressor must be installed.
On the bottom of the purger control enclosure are access
ports to feed the power and purger point wire connections.
Wire only one purge point solenoid to each controller contact
relay.
CAUTION: e controller is not to be connected to rigid
metallic conduit. Nonmetallic enclosures do not provide
grounding between conduit connections. Use grounding
bushings and jumper wires when connecting to metal conduit
or equivalent.
12. e purger may be commissioned once the unit is properly
connected to the associated piping within the ammonia system
and all power connections are securely established.
13. Supply power to the purger and wait for the start up screen
to display. Follow the instructions on the display screen and
familiarize yourself with the control panel’s interface, see
Figure 9.
On startup, the purger will enter a 15 second delay. is allows
the bubbler to ll with water before starting any purge cycles.
If the water bubbler does not ll to the recommended water
level press and hold the (INIT) button on the controller keypad
to energize the water solenoid valve. When water begins to
drain from the overow tube, release the (INIT) button to de-
energize the water solenoid valve.
WARNING: Because both the water and vent solenoids are
energized at the same time, this procedure must be done prior
to opening the system to refrigeration. Failure to do so will
result in venting of ammonia.
SAFETY FEATURE: e temperature controller and sensor are
wired in series with the pressure switch. is prevents venting
of non-condensed refrigerant to the water bubbler before the
heat exchanger reaches the desired temperature.
If the automatic startup does not activate, the process will have
to be performed manually. Press the MENU button on the
control panel interface to enter the display screen and follow
the startup instructions located further in the document.
14. When the initial startup is complete, the startup screen can
be exited by pressing the MENU button on the control panel
interface. is will bring you to the main display screen where
the actual temperature and pressure, target vent, active purge
point, number of vents, duration of vent and solenoid activity
is displayed.
e main display screen, on startup, is always in English. To
change the language follow the language setting instructions
located in appendix A.
15. e number of purge points for the system needs to be dened
with the required sample time for each point. To setup the
purge points, follow the purger type and purge points setting
instructions located further in this document. e purge mode
can also be set to either automatic, time based or manual
purging.
16. Now that the purger is properly installed and commissioned,
the high pressure liquid, foul gas, and suction lines can be
opened to the purger. Slowly open each line, no order required,
and check for leaks. If there no leaks, continue opening the
hand shut-o valves to full open.
e purger will automatically start establishing the conditions
required for purging.
All other setup instructions, such as date setup, time setup, display
settings, history, etc. can be found in appendix A.

Bulletin 76-00 B
7
Startup Instructions
Steps Setup Instructions Display Notes
1
To Initiate a startup, press the (MENU)
button to go to the secondary menu
screen
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
2
Use the (∨) button to move the selection
bar to the 'Start Up' option and then
press (Enter)
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
If the selection bar does not have 'Start Up' selected, use
the (∧) or (∨) button to move the selection bar.
3Follow the instructions on the screen and
then press (Enter)
BEFORE SETTING PURGE CYCLE
CHECK THAT WATER MAKE-UP
TANK CONTAINS WATER.
1.
2.
3.
DEFINE AND SET EACH POINT
REQUIRED IN THE SYSTEM.
SETUP PURGE CYCLE TYPE
(AUTO, MANUAL, OR TIME).
PRESS (ENTER) TO CONTINUE
Startup Instructions
Nameplate Information
Item Description
1 Year of Manufacture, Complete V300 Purger
2 Serial Reference Number
3 Canadian Registration Number (CRN)
4 National Board Number (NB#)
5 Year of Manufacture, Heat Exchanger
Figure 10: V300 Rapid Purger Nameplates
Table 1 : V300 Rapid Purger Nameplate Identication
5
4
3
2
1

Bulletin 76-00 B
8
Password Setting Instructions
Steps Setup Instructions Display Notes
1
To set the Password for calibrating the
Pressure Input or the RTD, press the
(MENU) button to go to the secondary
menu screen
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
2
Use the (∨) button to move the selection
bar to the 'Setup' option and then press
(Enter)
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
If the selection bar does not have the 'Setup' option
selected, use the (∧) or (∨) button to move the selection
bar.
3
Use the (∨) button to move the selection
bar to 'Set Password' and then press
(Enter)
SET DATE AND TIME
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
PURGE OPTIONS
CALIBRATE RTD (TEMPERATURE)
CALIBRATE PRESSURE INPUT
SETUP MENU
SET PASSWORD
If the selection bar does not have the 'Set Password' option
selected, use the (∧) or (∨) button to move the selection
bar.
4
Use the (∧) and (∨) buttons followed by
(Enter) for each of the four digits of the
password
PLEASE ENTER THE PASSWORD
ADJUST WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
0000
PASSWORD RESTRICTED MENU
The Password change screen will not be accessible
without the correct password
5
Enter the new password by using the
(∧) and (∨) buttons followed by (Enter)
for each of the four digits of the
password.
PLEASE ENTER NEW PASSWORD
ADJUST WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
0000
PASSWORD CHANGE MENU
6
Confirm the new password by using
the (∧) and (∨) buttons followed by
(Enter) for each of the four digits of the
password.
PLEASE CONFIRM NEW PASSWORD
ADJUST WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
0000
CONFIRM NEW PASSWORD
After the new password is confirmed, press (Enter) twice to
return to the Main Screen.
Password Setting Instructions

Bulletin 76-00 B
9
Purge Type and Points Setting Instructions
Steps Setup Instructions Display Notes
1
To change the purge type, press the
(MENU) button to go to the main menu
screen.
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
2Use the (∨) button to move the selection
bar to the SETUP option.
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
If the selection bar does not have the 'Setup' option
selected, use the (∧) or (∨) button to move the selection
bar.
3
Use the (∨) button to move to 'Purge
Options' and Press (Enter) again to enter
the Purge Options selectable
SET DATE AND TIME
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
PURGE OPTIONS
CALIBRATE RTD (TEMPERATURE)
CALIBRATE PRESSURE INPUT
SETUP MENU
SET PASSWORD
If the selection bar does not have 'Purge Options'
selected, use the (∧) or (∨) button to move the selection
bar.
4
In the Purge Options menu select 'Select
Purge Type' or 'Setup Points' and press
(Enter)
SELECT PURGE TYPE
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP POINTS
PURGE OPTIONS
If 'Select Purge Type' is selected, then jump to Step 5
If 'Setup Points' is selected, then jump to Step 13
5
In the Select Purge Type menu, select
either Auto, Manual, or Time-Based by
using the (∧) or (∨) button to move the
selection bar and press (Enter)
AUTO
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
MANUAL
TIME BASED
PURGE TYPE MENU
If 'Auto' is selected, then jump to Step 13
If 'Manual' is selected, then jump to Step 13
If 'Time-Based' is selected, then jump to Step 6
6
Use the (∧) or (∨) buttons to enter the
start time hour for the purge cycle to
begin every day
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
ENTER THE HOUR: 09
SET PURGER START TIME
Time-Based purging establishes the same time block every
day for the purger to be active.
7
Use the (∧) or (∨) buttons to enter the
start time minute within the hour set in
Step 6 for the purge cycle to begin every
day
AUTO
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO CANCEL
ENTER THE MINUTE: 05
SET PURGER START TIME
If the Purge time is set for Greenwich Mean Time (GMT),
jump to Step 8
If the Purger time is set for Military Time, jump to Step 9
8Use the (∧) or (∨) buttons to select the
start meridiem, 'AM' or 'PM'
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO CANCEL
SELECT AM / PM: AM
SET PURGER START TIME
9
Use the (∧) or (∨) buttons to enter the
end time hour for the purge cycle to
begin every day
AUTO
ENTER THE HOUR: 11
SET PURGER END TIME
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO GO BACK
TO SETTING START TIME
To cancel the operation, press (Menu) to return to the
beginning of the Start Time setting screens
Purge Type and Points Setting Instructions

Bulletin 76-00 B
10
Purge Type and Points Setting Instructions
Steps Setup Instructions Display Notes
10
Use the (∧) or (∨) buttons to enter the
end time minute within the hour set in
Step 9 for the purge cycle to begin every
day
ENTER THE MINUTE: 20
SET PURGER END TIME
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO GO BACK
TO SETTING START TIME
If the Purge time is set for Greenwich Mean Time (GMT),
jump to Step 11
If the Purger time is set for Military Time, jump to Step 12
11 Use the (∧) or (∨) buttons to select the
end meridiem, 'AM' or 'PM
AUTO
SELECT AM / PM: PM
SET PURGER END TIME
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO GO BACK
TO SETTING START TIME
12
This screen gives the opportunity to
check if all the values for Time-Based
purging are correct. If everything
entered is correct, press (Enter) to make
the changes
PLEASE REVIEW SETTING:
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO GO BACK
TO SETTING STOP TIME
START TIME: 9:05 AM
END TIME: 11:20 PM
START / END TIME REVIEW
To cancel the operation, press (Menu) to return to the
beginning of the Stop Time setting screens
13 Use the (∧) or (∨) buttons to select the
number of Purge Points in the system
HOW MANY POINTS ARE NEEDED?
04
SETUP POINTS
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO GO BACK
14
Use the (∧) or (∨) buttons to select
the specific purge point that needs its
Duration altered and press (Enter)
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
01
03
02
POINT DURATION
04
20 MIN
10 MIN
15 MIN
20 MIN
15
When the purge point is selected, press
(Enter) to allow the respective duration to
be selectable
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
01
03
02
POINT DURATION
04
20 MIN
10 MIN
15 MIN
20 MIN
The Duration options are 5 min, 10 min, 15 min,
and 20 min
16
Use the (∧) or (∨) buttons to select the
duration of a particular purge point and
then press (Enter) to set the duration
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
01
03
02
POINT DURATION
04
20 MIN
10 MIN
15 MIN
20 MIN
17 Repeat steps 14-16 until all the purge
points have the desired durations
Purge Type and Points Setting Instructions Continued

Bulletin 76-00 B
11
Calibrate Pressure Input and RTD
Steps Setup Instructions Display Notes
1
To calibrate the Pressure Input or the
RTD, press the (MENU) button to go to
the secondary menu screen
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
2
Use the (∨) button to move the selection
bar to the 'Setup' option and then press
(Enter)
START UP
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
SETUP
FACTORY TEST MODE
HISTORY
MAIN MENU
LANGUAGE MENU
If the selection bar does not have the 'Setup' option
selected, use the (∧) or (∨) button to move the selection
bar.
3
Use the (∨) button to move the selection
bar to either 'Calibrate Pressure Input' or
'Calibrate RTD (Temperature)' and then
press (Enter).
SET DATE AND TIME
SELECT WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
PURGE OPTIONS
CALIBRATE RTD (TEMPERATURE)
CALIBRATE PRESSURE INPUT
SETUP MENU
SET PASSWORD
If 'Calibrate Pressure Input' is selected, jump to Step 4
If 'Calibrate RTD (Temperature)' is selected, jump to Step 8
4
Use the (∧) and (∨) buttons followed by
(Enter) for each of the four digits of the
password
PLEASE ENTER THE PASSWORD
ADJUST WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
0000
PASSWORD RESTRICTED MENU
The Pressure input valves will not be accessible without
the correct password
5
Use the (∧) and (∨) buttons to select the
minimum pressure and press (Enter) to
set the value
ADJUST THE MIN PRESSURE
ADJUST WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
PRESSURE SENSOR MIN ADJUST
0 PSI
The default value is the factory calibrated value
6
Use the (∧) and (∨) buttons to select the
maximum pressure and press (Enter) to
set the value
ADJUST THE MIN PRESSURE
ADJUST WITH ∨ ∧ PRESS (ENTER)
PRESS (MENU) TO RETURN
PRESSURE SENSOR MAX ADJUST
500 PSI
The default value is the factory calibrated value
7
This screen gives the opportunity to
check if all the values for calibrating the
pressure input are correct. If everything
entered is correct, press (Enter) to make
the changes
CURRENT VALUES:
SELECT WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
MIN PRESSURE: 0 PSI
MAX PRESSURE: 500 PSI
PRESSURE SENSOR MIN / MAX
Press (Enter) two more times to get back to the Main Menu
8
Use the (∧) and (∨) buttons followed by
(Enter) for each of the four digits of the
password
PLEASE ENTER THE PASSWORD
ADJUST WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
0000
PASSWORD RESTRICTED MENU
9
Use the (∧) and (∨) buttons to set the
ambient RTD temperature and press
(Enter) to set the value
SELECT WITH ∨ ∧ PRESS (ENTER)
OR PRESS (MENU) TO GO BACK
CURRENT RTP TEMP: 49° F
RTP (TEMPERATURE) CALIBRATE
The default value is the factory calibrated value
Press (Enter) two more times to get back to the Main Menu
Do not adjust calibration to increase the number of vents
Note: Factory calibration of the RTD may have created an
offset less than or greater than 0.
Calibrate Pressure Input and RTD

Bulletin 76-00 B
12
1 2 3 4 5
Connection Pole Data Output RS-422
Full Duplex
RS-485
Half Duplex
1 T/R+ Send (A+) RS-485 (A+)
2 T/R- Send (B-) RS-485 (B-)
3 RXD+ Receive (A+) N/C
4 RXD- Receive (B-) N/C
5 GND Ground Wire Ground Wire
Table 2: RS-485, RS-422 Data Output, Connector, and Bay-
Line Distribution
Figure 11: RS-485/422 Interface Converter
e V300 Rapid Purger is equipped with a RS-485 communication
port for easy interface to controller data transmission. To make
the connection from the CAT5 Ethernet cable (RJ45 plug) to
the computer. Refrigerating Specialties recommends using the
Gearmo GM-482422 USB to RS-485/422 interface converter, see
Figure 11 below.
Remote Communications Setup/Assembly Instructions
To connect the CAT5 Ethernet cable to the GM-482422 converter
follow below instructions.
1. Measure the length of the CAT5 cable from the V300 Rapid
Purger to the computer.
2. Cut o one end of the CAT5 cable to expose the internal wires.
3. Strip the ends of the of the white/blue, solid blue and solid
brown cables.
4. Fasten the white/blue CAT 5 wire to Pin 1, 485+, on the Gearmo
adaptor.
5. Fasten the solid blue CAT 5 wire to Pin 2, 485-, on the Gearmo
adaptor.
6. Fasten the brown CAT 5 wire to Pin 5, GRD, on the Gearmo
adaptor.
7. e cable is now ready for use.
For remote communications setup follow the Parker GUI, option 1,
or the customer customized GUI, option 2, located further in this
bulletin.

Bulletin 76-00 B
13
Gearmo USB to RS485 Adaptor Driver Installation Instructions
Steps Setup Instructions Display Notes
1
Insert the Gearmo FTDI driver CD
into the computer of choice’s CD-
drive.
The driver is also available for download at http://
www.gearmo.com/shop/usb-to-rs485-rs422-
converter-ftdi-chip-with-terminals/
If you choose to download the driver, proceed to
Step 5
These instructions will show how to install the
driver on a computer running Windows 7.
Windows XP, 2003, Vista, 7, 8 as well as Linux and
Mac OS 10.X are supported
2Open the folder labelled ‘Driver’
located in the drive containing the
Gearmo CD (D: drive).
3
Now open the folder which
corresponds to the operating
system on your computer of
choice, in this case it is ‘win xp
server 2003 2008 Vista 7 8 32-
64bit’
4
Double click the executable le
labelled ‘CDM20828_Setup’ and
follow the on-screen instructions to
install the driver.
5
Following the link from Step 1 will
show the information page on
the Gearmo adapter. Under the
‘Drivers & Manuals’ tab on this
page, select ‘Latest FTDI Driver’ to
download the driver installation le.
6
Open the ZIP folder labelled
‘FTDI-Latest’ when the download
is complete. Double-click the
executable le in this folder and
follow the on-screen instructions to
install the driver.
Gearmo USB to RS485 Adaptor Driver Installation Instructions

Bulletin 76-00 B
14
Remote Communications Setup Instructions - Option 1
Steps Setup Instructions Display Notes
1
Install the program (RS485 V300
Purger Interface V1.1.exe) on the
desired computer.
2Run the 'RS485 V300 Purger
Interface V1.3.exe' Application.
Download the remote com interface at
www.ParkerRealSolutions.com
3Connect the USB side of the USB/
RS485 cable to the computer.
4
Open the V300 Purger Controller
enclosure by unlatching the two
side latches.
5
Feed the other end of the cable
(RS845 side) through an unused
hole at the bottom of the V300
Purger Controller enclosure.
6
Plug in the RS845 (Cat5) connector
to the RJ45 Jack on the Display
Board afxed to the backside of the
Enclosure lid.
The adaptor's driver should be installed on the
laptop for the w port to be recognized.
7
If you are running the Remote
Communications on a Windows
Operating System, access ‘Device
Manager’ through ‘Control Panel’.
Under ‘Ports (COM & LPT)’,
double-click the COM port that
aligns with the RS-485 converter.
In order for the Remote Communications Interface
to run properly, the COM port settings on the
computer of choice, V300 Purger Controller, and
Purger Interface Application must match.
8
The following window will appear.
Select ‘Port Settings’ and ensure
that ‘Bits per second’ is 19200,
and ‘Parity’ is Even. Then click
‘Advanced’
Remote Communications Setup Instructions - Option 1

Bulletin 76-00 B
15
Remote Communications Setup Instructions - Option 1
Steps Setup Instructions Display Notes
9
The following window will
appear. Ensure that ‘Receive’ and
‘Transmit’ are both set to 4096, and
that ‘Latency Timer’ is set to 1.
10
Click on the 'COM Port Settings'
in the Remote Communications
application to set up the COM Port.
11 Select the COM port that is
associated with the RS485 cable.
It is important to select the correct COM port that
aligns with the RS-485 converter. This can be
determined by starting the application on the PC
with the RS485 converter unplugged from the V300
Purger Controller, then look at the COM ports that
are available on the Bootloader. Then, plug in the
RS485 converter and click 'Find COM Ports' in the
application. The additional COM port that appears
is the port that should be selected.
12
Set the Baud Rate to '19200'
Set the Parity to 'Even'
Keep the Refresh Rate to '5'
Seconds
13
Press 'Apply' to set the parameters
and return to the Main Screen.
Then press ‘Connect’ on the Main
Screen to establish a connection.
If connection is properly established, the real time
display will appear in the remote communications
application:
From here on, remote monitoring and setting is
enabled via the application.
Remote Communications Setup Instructions - Option 1 Continued

Bulletin 76-00 B
16
Remote Communications Setup Instructions - Option 1
Steps Setup Instructions Display Notes
14
Click 'View History' on the Main
To update any parameter, select
'Purge setting'
To set any parameter, press 'Apply'
15 To Initiate a manual purge, select
'INIT' on the Main Screen
16
The following screen will appear.
Select the purge point in question
and press 'Initiate Point' to start.
17 To terminate a purge, select ‘TERM’
on the Main Screen
18
The following screen will appear.
Select ‘Terminate Point’ to
terminate the current purge point
and cycle to the next. Select
‘Terminate Cycle’ to end purging
completely.
19
Click 'View History' on the Main
Page to view the last 12 weeks of
history.
20
The following screen will appear.
Here, select any date in time and
press ‘read’ to get a history for the
week in question.
If current week is selected, point by point
observations can be viewed
21
The screen will show the number
of vents and total vent time at each
purge point for a given week.
Remote Communications Setup Instructions - Option 1 Continued

Bulletin 76-00 B
17
Remote Communications Setup Instructions - Option 2
Steps Setup Instructions Display Notes
1
Use the Protocol list 'MSC_114-
PURGE2_COMMUNICATIONS
TABLE' to create a Customer
Graphical User Interface.
Can set up to Integrate directly into Main control
panel.
2 Open the custom Application.
3Connect the USB side of the USB/
RS485 cable to the computer.
4
Open the V300 Purger Controller
enclosure by unlatching the two
side latches.
5
Feed the other end of the cable
(RS845 side) through an unused
hole at the bottom of the V300
Purger Controller enclosure.
Feed from the outside to the inside.
6
Plug in the RS845 (Cat5) connector
to the RJ45 Jack on the Display
Board afxed to the backside of the
Enclosure lid.
7
Establish communication with the
V300 Purger through the custom
application.
8Navigate the application to monitor
and set parameters as desired.
Remote Communications Setup Instructions - Option 2

Bulletin 76-00 B
18
V300 RS485 Communication Protocol
Variable
(TX Data)
Start Header
HEX
Variable
HEX
Data
Length
ASCII
Data sent using ASCII
(No Error)
ASCII
Carriage
Return
HEX
Checksum
Single Byte Checksum (HEX)
timeformat 0x01 0x41 11 = AM/PM, 2 = 24HR 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
dateformat 0x01 0x42 11 = MON/DD/YY, 2 = DD/MON/YY, 3= DD/MM/YY, 4
= MM/DD/YY 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
SetPurgePoints 0x01 0x43 2Number of Points, 01 - 20 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Password 0x01 0x44 44 digits 0-9 (####) 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Baud 0x01 0x45 11 = 9600, 2 = 19200 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Parity 0x01 0x46 11 = ODD, 2 = EVEN 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Temp_Scale 0x01 0x47 11 = C, 2 = F 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Backlight_Pct 0x01 0x48 3Backlight percentage, 000 - 100% 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Contrast_Pct 0x01 0x49 3Contrast percentage 000 - 100% 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Temp1_Offset 0x01 0x4A 2 (3) Temperature Offset -30 to 30 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Pressure_Max 0x01 0x4B 3Pressure max in PSI, 300 to 750 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Pressure_Min 0x01 0x4C 2Pressure min in PSI, 00 to 50 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
PurgeType 0x01 0x4D 11 = AUTO, 2 = MANUAL, 3 = TIME BASED 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
TimeModeStartHour 0x01 0x4E 2Start Hour, 00 to 23 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
TimeModeStartMin 0x01 0x4F 2Start Minute, 00 to 59 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
TimeModeEndHour 0x01 0x50 2Stop Hour, 00 to 23 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
TimeModeEndMin 0x01 0x51 2Stop Minute, 00 to 59 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Current Min 0x01 0x53 2Current Time Minutes, 00 to 59 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Current Hour 0x01 0x54 2Current Time Hours, 00 to 23 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Current DoW 0x01 0x55 1
Current Time Day of Week (0 is Sunday, 1 is Monday, 2
is Tuesday, 3 is Wednesday, 4 is Thursday, 5 is Friday,
6 is Saturday)
0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Current Date 0x01 0x56 2
Current Day of Month, 01 to 31 (set month and year
rst to ensure that the day of month is valid for the
current month)
0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Current Month 0x01 0x57 2 Current Month, 01 to 12 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Current Year 0x01 0x58 2Current Year, 00 to 99 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
TargetVentPressure 0x01 0x5D 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
TargetResetPressure 0x01 0x5E 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
ActualPressure 0x01 0x5F 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
LiquidState 0x01 0x60 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
VentState 0x01 0x61 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
ActivePoint 0x01 0x62 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
ActivePointMinutes 0x01 0x63 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
ActivePointSeconds 0x01 0x64 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
ActualTemp 0x01 0x65 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
PurgeTime 0x01 0x66-0x79 (20
points) 2Purge times, valid data is 05, 10, 15, 20 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
CurrentPgPtVents 0x01 0x7A 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
CurrentPgPtHours 0x01 0x7B 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
CurrentPgPtMins 0x01 0x7C 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
CurrentPgPtSecs 0x01 0x7D 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
ReadHistory 0x01 0x7E 5
2 Bytes for Week (00 = current, 01 = one week ago
thru 12 = twelve weeks ago). 2 Bytes for Purge Point to
retrieve history for (01 to 20). One Byte for Day of Week
(0 = SUN, 6 = SAT)
0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
InitScreen 0x01 0x7F 0No Data, Read Only 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Terminate Point 0x01 0x80 11 = Terminate Current Point, 2 = Terminate Cycle 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Initiate Point 0x01 0x81 22 Bytes are for the purge point number 01-20. 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
InitScreenControl 0x01 0x82 10 = Do nothing (not lling Bubbler) 1 = Exit Init Screen,
2 = Filling Bubbler 0x0D =VALUE(1) * 1 + VALUE(2) * 2 + VALUE(n) * n
Communication Protocol

Bulletin 76-00 B
19
ASCII to Hex Conversion
ASCII Number HEX Value
00x30
10x31
20x32
30x33
40x34
50x35
60x36
70x37
80x38
90x39
Maintenance Instructions
Maintenance Instructions
Procedure Instructions
Oil Draining
Review your facilities procedures on how to properly pump down and drain oil from a vessel before attempting to drain oil
from the purger heat exchanger. The following instructions are a recommendation and my not fall within the PM program of
your facility.
1. Follow the facilities oil draining procedures on how to properly extract oil from a vessel. The RSBCV safety bulletin,
located in the purger packet, provides additional safety and pump out instructions. Read these instructions prior on
continuing to the next step.
2. The purger heat exchanger must be isolated and pumped out before removing the oil. Close the hand shut-off valves
to the high pressure liquid and foul gas line. Keep the suction hand shut-off valve open to pump down the heat
exchanger.
Note: The purger controller can remain powered through the draining oil maintenance procedure.
3. Manually open the SV2 solenoid, #6 in the exploded view, on the high pressure liquid line by removing the seal cap and
turning the manual opening stem clockwise until only the ats on the end of the stem protrude from the packing nut.
This will prevent liquid ammonia from being trapped between the liquid hand shut-off valve and SV2 solenoid.
4. Use the HSBR level switch as a ammonia level indicator. When the LEDs turn off, the system will call for liquid, but the
liquid hand shut-off valve is preventing any additional liquid from entering the purger, pumping out the heat exchanger.
5. Allow the purger to pump out a few more minutes before closing the suction line hand shut-off valve. The remaining
ammonia in the system will pressurize the vessel and assist in draining the oil.
6. Purge one oil drain line at a time. Slowly crack open the shell side oil drain valve, see Figure 6, and discharge the oil
into the proper container accepted by safety codes and standards.
WARNING: Do not open the oil drain valves completely.
7. When the oil is done draining close the oil drain valve.
8. Repeat steps 6 thru 7 for the tube side oil drain valve.
9. After draining all the oil from the purger heat exchanger the system is ready to go back online. Return the SV2 solenoid
valve back to automatic mode by turning the stem counter clockwise as far as it will go. Loosen the packing nut before
tuning the stem and re-tighten after the stem out.
10. Slowly open each line, no order required, and check for leaks. If there no leaks continue opening the hand shut-off
valves to full open. The purger will automatically start establishing the conditions required for purging.
Communication Protocol Continued

Bulletin 76-00 B
20
7
21
21
17
18
9
10(12)
9
20
12
9
16
19
7
5
Liquid
Refrigerant
Line
Non-Condensables
Vent Line
Water
Inlet
Line
Foul
Gas
Line Water
Drain
Line
37
5
31
14
33
Suction
Line
38
11
21
20
6
7
8
29
28
27
27
25
1
22
24
21
5
13
4(15)
10(12)
10(12)
Figure 12: V300 Auto Purger Exploded View
Parts Kit Informaton