Parker V200 User manual

Auto Purger Model V200
Product Bulletin 75-00 E
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
Customer Value
Proposition:
The Model V200 Auto Purger is a
unique energy-saving device designed
to efficiently remove foreign non-
condensable gases from ammonia
refrigeration systems.
Product Features:
• Smaller compact design with
equivalent capacity of our current
model
• Light weight (65 lbs)
• Proprietary microprocessor control
for all sensing and control functions
• Factory calibrated and wired
• Auto or manual cycling capabilities
• Up to 36 “Purge Points”
• Automatically adjusts vent
pressures
• Energy saving sleep mode that
will activate with lack of non-
condensables
• Electronic level, temperature, and
pressure monitoring for improved
performance
• Records number of purge cycles and
times for each purge point during a
7 day period
• Purger is made of corrosion resistant
material

Page 2 / Bulletin 75-00 E
Introduction
Non-condensables like air, hydrogen,
nitrogen, and hydrocarbon gases
reduce the overall capacity of
the refrigeration system. Higher
pressures, which in turn causes
longer compressor runtime, longer
condenser fan runtime, higher
compressor discharge temperatures,
increase compressor power costs,
increase wear and tear on equipment,
increase leaks, reduce system
eciency, increase overall system
energy costs are all consequences of
non-condensables in the refrigeration
system.
In a refrigeration system non-
condensables can be introduced by:
• Inadequate system evacuation such
as servicing compressors, strainers,
valves, start-up, etc.
• Refrigerant additions
• Leaks from valve stem packings,
bonnet gasket, compressor shaft
seal, control transducers, etc.
• Separation of ammonia molecules
(hydrogen and nitrogen)
• Compressor oil breakdown
(hydrocarbon gases)
e base V200 Rapid Auto Purger
removes the non-condensable gases
from four purge points. With the
addition of up to two slave units, 36
purge points possible. is leads to
lower condensing pressure, runtime of
the compressors, and operating costs.
Non-condensable indicators
are excessively high condensing
temperatures/pressures and saturated
temperature/pressure deviations.
One indicator is a higher saturated
condensing pressure/temperature
at the evap condenser for the given
outdoor air wet bulb and heat
rejection load. Another indicator is
the increasing dierence between the
observed condensing pressure and
the saturation pressure corresponding
to the liquid refrigerant temperature
exiting the condenser.
Purge Points
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
by the purger. e Auto Purger V200
has a liquid drainer at the foul gas
inlet to prevent any liquid refrigerant
from entering the shell side of the heat
exchanger.
Auto Purging
e start of a purge cycle can
commence automatically, manually,
time based, central management, and/
or using the microprocessor. e Auto
Purger V200 can only purge one point
at any given time.
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 Auto Purger continues to the next
purge point. When a purge point
Evaporative Condenser Purge Point
High
Pressure
Receiver
Evaporative
Condenser
Auto Purger
(Model V200)
Evaporator
Liquid Line
Liquid
Refrigerant
Line
Gas
Refrigerant
Line
Foul
Gas
Line
P
P
P
P
P
Purge Points (P)
Auto Purger (Model V200) Mutiple Purge Points
High Pressure
Gas
Refrigerant
Foul Gas
Liquid
Refrigerant
P
Liquid
Refrigerant
Foul
Gas
High Pressure Receiver Purge Point
P

Bulletin 75-00 E / Page 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 Low Temp. Liquid
High Pressure Gas
Non-Condensable
Gases
Auto Purger (Model V200) Fill and Cool Down
meets the purge conditions within
the sample time limit the Auto Purger
starts the purge cycle. e purge
cycle shuts o when the non-purge
conditions are met.
A built in feature of the Auto Purger is
sleep mode. Sleep mode allows the
system to bypass purge points after
two cycles of not meeting the purge
conditions within the minimum
sample time of ve minutes. After the
Auto Purger samples each purge point
twice without a vent occurring, the
system will shut o for two hours.
Purge Cycle
e purge cycle consist of three main
operations: ll & pre-cool, separating
non-condensable gases & refrigerant,
and the release of non-condensable
gases.
1. Fill & Pre-Cool
Foul gas enters the V200 Auto
purger at the foul gas line. e
liquid drainer separates the liquid
refrigerant from the foul gas.
Using the suction line; the liquid
refrigerant from the liquid drainer
is transported to the shell side of the
heat exchanger.
Liquid makeup to the heat
exchanger is controlled by the
level sensor. As liquid refrigerant
boils o in the heat exchanger the
level drops. When the refrigerant
reaches a critical level the sensor
energizes the liquid solenoid,
opening the check valve, and letting
liquid refrigerant through to ll
up the heat exchanger. e level
sensor is set on a timer to prevent
from over lling the heat exchanger.
2. Separating Non-Condensable
Gases & Refrigerant
e foul gas enters the heat
exchanger through a check valve
with an orice and condenses
immediately. 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
Flow
Controller
Water

Page 4 / Bulletin 75-00 E
Auto Purger (Model V200) Separating Non-Condensables Gases
orice, 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 ows back into the
tube side of the heat exchanger.
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. 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 o 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.
3. Release of Non-Condensable Gases
As the refrigerant level drops in
the vapor vent the oat will fall
allowing the non-condensable
gases to escape through the ori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 ori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.
As the non-condensable gases and
residual amounts of refrigerant
enters the bubbler they are diluted
into the water. As the water in the
bubbler rises it will over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.
Installation Instructions
1. Mount the Rapid Auto Purger to a
wall or structure that can easily
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
Low Temp. Liquid
High Pressure Gas
Non-Condensable
Gases
Flow
Controller
Water

Bulletin 75-00 E / Page 5
Auto Purger (Model V200) Release of Non-Condensable Gases
handle its weight and installation
hardware. Make sure to leave
access for servicing the unit if
required. Pipe the unit into the
refrigeration system along with an
electrical supply, water, and a water
drain as needed.
Note: Wire only one purge point
solenoid to each controller contact
relay. See electrical wiring diagram
on page 6.
2. Before opening the purger to the
refrigeration system turn power on
to the controller and open the water
supply ball valve.
3. is is done by pressing and holding
the “Initiate” (INIT) button on
27.25”
12.375”
35.75”
Auto Purger (Model V200) Compact Design Dimensions
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

Page 6 / Bulletin 75-00 E
the controller keypad when the
initial start-up screen is displayed.
e water solenoid will energize
and water should be seen lling
the tank. e tank is full when
water runs over the overow tube.
After the tank is full, release the
“Initiate” (INIT) button to stop the
water ow.
Note: 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 a venting of ammonia.
4. Press and release the “Menu” key to
bring up the main menu screen.
Press the “Enter” key and release
several times until the Temperature
Scale reading is highlighted. Use
the Up/ Down arrow keys to select
between Fahrenheit and Celsius.
Press and Release the “Enter” key
twice to save your selection and
return to the main screen.
NEUTRAL
LIQ SOL NO
LIQ SOL COM
SUCTION NO
SUCTION COM
NO
COMMON
NC
NO
COMMON
NC
NO
NC
NO
COMMON
COMMON
NC
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
* SEE NOTE 1)
LINE
WATER / VENT / LIQUID
LINE
* SEE NOTE 1)
LIQUID
LINE
LINE
LINE
WATER / VENT
PURGE SOL VALVE #1
PURGE SOL VALVE #2
PURGE SOL VALVE #3
PURGE SOL VALVE #4
L1
L2
3
4
NOTES;
1) CUSTOMER ATTACHES 110V SUPPLY
5
5
6
6
6
7
5
8
9
10
11
GROUND
12VDC / 1.6A
ANALOG IN 2
ANALOG IN 1
GROUND
REMOTE CONTACT 1
RS 485 A
RS 485 B
SLAVE UNIT (OPTIONAL)
LEVEL SENSOR
PRESSURE TRANSDUCER
SLAVE UNIT (OPTIONAL)
PRESSURE TRANSDUCER
RTD
LEVEL SENSOR
RTD
LEVEL SENSOR
SLAVE UNIT (OPTIONAL)
SLAVE UNIT (OPTIONAL)
BLACK
WHITE
WHITE
BLACK
RED
RED
RED
RED
WHITE
ORANGE
BLUE
Electrical Wiring Diagram for a 4 Point Purger
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)
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
MENUINIT
ENTERTERM
Controller Start-up Screen
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
MON 01-01-08 01:43PM PRE-COOL
PURE TEMPERATURE OVERLIMIT
ACTUAL TARGET
73°F 0.0 PSIG VENT
7.3 PSIG 0.0 PSIG RESET
CYCLE HISTORY
VENTS 0 TOTAL TIME 0:00:00
MODE : AUTO
Main Menu for the Controller
5. Fahrenheit v/s Celsius display
readings are user selectable by
following these simple keypad
entries. Press both the Up and
Down arrow keys at the same time
and release.
Note: Timing is critical and may
take several tries.
6. Screen contrast is adjustable by
pressing both the “Enter” and
“Terminate” (TERM) keys at the
same time. As with step 5, timing is
critical. Use the Up/ Down arrow
keys to lighten or darken the display
to your liking. Press and release the
“Enter” key to return to the main
menu.
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
UNIT SETUP
SOFTWARE VERISON 1.0
BRUD: 19200
PARITY: EVEN
TEMPERATURE SCALE: FAHRENHEIT
SLAVE ID: 01
PRESS (MENU) TO CANCEL
Fahrenheit v/s Celsius Menu

Bulletin 75-00 E / Page 7
Control Features Setup
is includes date, time, purge type
(automatic, manual, etc.), and the
number of purge points being sampled
1. Press and release the “Menu”
button on the keypad. e rapid
purger setup main menu will
appear.
2. When in the main operating
screen press and release the
“Menu” button. Use the Up/
Down arrow buttons to select the
“Setup” option. Press and release
the “Enter” button. Use the Up/
Down arrow keys to select the
“Purge Options” eld. Press and
release the “Enter” button, “Setup
Points” will be highlighted. Press
and release the “Enter” key on the
keypad. Using the Up/ Down arrow
keys, select how many purge points
are being used. When done, press
and release the “Enter” key. Now
we must enter the time (in minutes)
each purge point is sampled. is
setting is less important when the
“Automatic” purge mode is selected.
In this mode, sample times will
change up or down based on vent
cycle history. With the Point and
Duration highlighted (darkened
bar across the eld), press and
release the “Enter” key. An arrow
will appear to the left of the time to
be changed. Using the Up/ Down
arrow keys, select a time from 5 – 20
minutes in 5 minute increments.
Press and release the “Enter” key
when done. Use the Up/ Down
arrow key to select the next point
and duration to be set. Follow the
same procedure for each of the
purge points being used. When
done, press and release the “Menu”
key to return to the purge options
screen.
“Auto” To select “Auto”, press and
release the “Enter key. is is all
that is required to operate in the
“Auto” mode (as dened in this
manual). Press and release the
“Menu” key to return to the main
screen. If you need to terminate
the active point being sampled
and move to the next, press and
release the “Terminate” (TERM)
key. Terminate Active Point (1-20)
should be highlighted. Press and
release the “Enter” key to move to
the next purge point. If you need
to stop all Purging in the “Auto”
mode, select the Terminate Purge
Cycle by using the Up/ Down arrow
keys. Press “Enter” and release to
make your selection. In order to
release the system from Purge Hold,
re-select the “Auto” purge option
again as explained at the beginning
of this step.
V
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
MAIN MENU
START UP
SETUP
HISTORY
OTHER SETTINGS
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
Main Menu Options
Use the Up/ Down arrow buttons to
select the “Setup” option. Press and
release the “Enter” key.
V
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
SETUP
SET TIME AND DATE
PURGE OPTIONS
CALIBRATE PRESURE INPUT
TRIM TEMPERATURE READING
CHANGE LIQUID FEED SETTINGS
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
Setup Menu
Press and release the “Enter” key
a second time to enter the current
date. Use the Up/ Down arrow keys
to select the correct month. Press
and release the “Enter” button to
move to the next eld. Repeat these
steps to enter the day and year.
When nished, press, and release
the “Enter” key. Enter the current
day of the week by again using the
Up/ Down arrow keys. Next, enter
the current time using the same set
of key strokes. Don’t forget to select
between AM and PM in this screen.
When you’re done, press the “Enter”
key to return to the main menu.
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
SET TIME/DAY
WHAT IS THE DAY? TUE
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
V
Time / Date Setup Screen
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
PURGEDURATION
01 05 MIN
02 05 MIN
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
V
Purge Point Duration Setup Screen
3. Use the Up/ Down arrow keys to
select the “Purge Type” option and
press and release the “Enter” key. 3
Purge Options are available to you
in this screen.
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
PURGE OPTION
AUTO
MANUAL
TIME BASED
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
V
Purge Option Menu
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
TERMINATE PURGE
TERMINATE ACTIVE POINT 1
TERMINATE PURGE CYCLE
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
V
Terminate Purge Menu
“Manual” To select the “Manual”
mode, use the Up/ Down arrow key
to highlight the manual option.
Press and release the “Enter” key
to save your selection. To initiate a
purge cycle in the Manual mode,
press and release the “Initiate”
(INIT) key. Using the Up/ Down
arrow keys, select the point that you
wish to purge. Press the “Enter” key.
e point selected along with the
duration of time this point will be
sampled is shown toward the top of
the display. To terminate a purge in
the manual mode, press and release
the “Terminate” (TERM) key. Using
the Up/ Down arrow key, select

Page 8 / Bulletin 75-00 E
either of the two options displayed.
Press and release the “Enter” key to
terminate the purge.
“Time Based” To select the “Time
Based” mode, use the Up/ Down
arrow key to highlight the Time
Based option. Press and release the
“Enter” key to save your selection.
e next step is to enter the time the
purge cycle will start. Use the Up/
Down arrow keys to select the hour.
Press and release the “Enter” button
to move to the next eld. Repeat
these steps to enter minutes and
AM v/s PM. When nished, press
and release the “Enter” key. Using
the same steps, enter the time of
day the purge cycle will stop. Don’t
forget to select between AM and
PM.
When nished, press and release
the “Enter” key. If you have already
set the number of purge points
needed, press and release the
“Enter” key again to bring you back
to the main menu. If you haven’t yet
selected how many purge points
are needed, refer back to step 2 for
instruction.
To initiate a purge cycle in the Time
Based mode, press and release
the “Initiate” (INIT) key. Using
the Up/ Down arrow keys, select
the point that you wish to purge.
Press the “Enter” key. e point
selected along with the duration of
time this point will be sampled is
shown toward the top of the display.
To terminate a purge in the Time
Based mode, press and release the
“Terminate” (TERM) key. Using
the Up/ Down arrow key, select the
Terminate Active Point (#) and press
and release the “Enter” Key. e
selected point will terminate and
the next programmed purge point
will become active and move to the
next active purge point.
To stop all purging while in
the “Time Based” mode, select
Terminate Purge Cycle. Using
the Up/ Down arrow key, select
Terminate Purge Cycle and press
and release the “Enter” key. is
will put the controller in a Purge
Hold mode that is displayed in the
upper right corner of the display.
In order to release the system
from Purge Hold, you will have to
re-select the “Time Based” purge
option again as explained at the
beginning of this step.
Purger Safety Features
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 temperature.
LIQUID SOL
SUCTION SOL
SOFT GAS SOL
HOT GAS SOL
EQUALIZE SOL
FAN
POINTDAY VENTSTIME
SUN 00 00:00
MON 00 00:00
TUE 00 00:00
01 WED 00 00:00
02 THR 00 00:00
FRI 00 00:00
SAT 00 00:00
SELECT WITH V PRESS (ENTER)
PRESS (MENU) TO CANCEL
V
Time Based Type Setup Menu

Bulletin 75-00 E / Page 9
Item Description
1Purger Controller, Drilled
(4 points)
2Slave Controller Unit
(16 points)
33/8” Clamp, Pipe
4Water Solenoid Valve
(1/4” Threaded Connection)
5Level Sensor
6Water Bubbler
7Junction Box
8Pressure Regulator
(1/2” Threaded Connection)
9 Pressure Transducer
10 Vent Solenoid
11 Vapor Vent Float
12 Liquid Solenoid (SV2)
(1/2” Threaded Connection)
13 Heat Exchanger
14 RTD Probe
15 Liquid Drainer
(1/2” Threaded Connection)
1
2
3
3
4
9
7
8
6
11
10
5
12
13
14
15
Auto Purger (Model V200) Key Components
Purger
P/N
Purge
Points Voltage (V) #2 Slave Unit #4 Water Soln #10 Vent Soln #12 Liquid Soln
109221 4 120 — 311611 311612 202849
109222 4 120 208477 311611 311612 202849
109223 20 240 — 311613 311614 202850
109224 20 240 208477 311613 311614 202850
109269 8 120 208477 311611 311612 202849
109270 8 240 208477 311613 311614 202850
109271 12 120 208477 311611 311612 202849
109272 12 240 208477 311613 311614 202850
109273 16 120 208477 311611 311612 202849
109274 16 240 208477 311613 311614 202850
Auto Purger (Model V200) Assemblies
Note: 36 purge points are available (two slave units).

Page 10 / Bulletin 75-00 E
CONTROLLER
CONTROLLER
WHITE
5
6
RED
+12VDC GND / NEUT
PURGE SOL VALVE # 5
PURGE SOL VALVE # 6
PURGE SOL VALVE # 7
PURGE SOL VALVE # 8
PURGE SOL VALVE # 9
PURGE SOL VALVE # 10
PURGE SOL VALVE # 11
PURGE SOL VALVE # 12
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
PURGE SOL VALVE # 13
PURGE SOL VALVE # 14
PURGE SOL VALVE # 15
PURGE SOL VALVE # 16
PURGE SOL VALVE # 17
PURGE SOL VALVE # 18
PURGE SOL VALVE # 19
PURGE SOL VALVE # 20
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
NO NCCOMMON
CONTROLLER
CONTROLLER
11
BLUE
RS 485 BRS 485 A
10
ORANGE
Electrical Wiring Diagram for the Slave Unit (16 Additional Purge Points)
Note: Common shown 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 natural should be supplied to one of each of the coil
leads. e other coil lead should be attached to the N.O. terminal for each independent purge point solenoid (S6N,
S8F).

Bulletin 75-00 E / Page 11
Safe Operation
(See Bulletin RSBCV)
People doing any work on a
refrigeration system must be
qualied and completely familiar
with the system and the Refrigerating
Specialties Division valves involved,
or all other precautions will be
meaningless. is includes reading
and understanding pertinent
Refrigerating Specialties Division
Product Bulletins and Safety Bulletin
RSB prior to installation or servicing
work.
Where cold refrigerant liquid lines
are used, it is necessary that certain
precautions be taken to avoid damage
which could result from liquid
expansion. Temperature increase in
a piping section full of solid liquid
will cause high pressure due to the
expanding liquid which can possibly
rupture a gasket, pipe or valve. All
hand valves isolating such sections
should be marked, warning against
accidental closing, and must not be
closed until the liquid is removed.
Check valves must never be installed
upstream of solenoid valves, or
regulators with electric shut-o,
nor should hand valves upstream of
solenoid valves or downstream of
check valves be closed until the liquid
has been removed.
It is advisable to properly install relief
devices in any section where liquid
expansion could take place. Avoid all
piping or control arrangements which
might produce thermal or pressure
shock.
For the protection of people and
products, all refrigerant must be
removed from the section to be
worked on before a valve, strainer, or
other device is opened or removed.
Flanges with ODS connections are not
suitable for ammonia service.
Warranty
All Refrigerating Specialties products
are under warranty against defects
in workmanship and materials for
a period of one year from date of
shipment from factory. is warranty
is in force only when products are
properly installed, eld assembled,
maintained, and operated in
use and service as specically
stated in Refrigerating Specialties
Catalogs or Bulletins for normal
refrigeration applications, unless
otherwise approved in writing
by the Refrigerating Specialties
Division. Defective products, or
parts thereof returned to the factory
with transportation charges prepaid
and found to be defective by factory
inspection, will be replaced or
repaired at Refrigerating Specialties
option, free of charge, F.O.B. factory.
Warranty does not cover products
which have been altered, or repaired
in the eld, damaged in transit, or
have suered accidents, misuse, or
abuse. Products disabled by dirt or
other foreign substances will not be
considered defective.
e express warranty set forth
above constitutes the only warranty
applicable to Refrigerating Specialties
products, and is in lieu of all other
warranties, expressed or implied,
written including any warranty of
merchantability, or tness for a
particular purpose. In no event is
Refrigerating Specialties responsible
for any consequential damages of any
nature whatsoever. No employee,
agent, dealer or other person is
authorized to give any warranties on
behalf of Refrigerating Specialties,
nor to assume, for Refrigerating
Specialties, any other liability in
connection with any of its products.

Bulletin 75-00 E / Page 12
© 2008 Parker Hannin Corporation
ISO 9001 CERTIFIED
309643 ECN: 8756 02/12/08
Notes:
Replaces Prior Versions:
75-00 A
75-00 B
75-00 C
75-00 D