Whirlpool R600A User manual

TECHNICAL EDUCATION
JOB AID W10329932
L-84
Vertical Modular
Washer
R-125
SERVICE MANUAL
R600A Refrigerant
W11105483
Multimedia
Enhanced

ii n R600A Sealed System 2017
FORWARD
This Whirlpool Service Manual, (Part No. W11105483), provides the In-Home Service Professional with
service information for the “R600A Refrigerant Sealed System.”
GOALS AND OBJECTIVES
The goal of this Service Manual is to provide informaon that will enable the In-Home Service
Professional to properly diagnose malfuncons and repair the “R600A Sealed system .”
The objecves of this Service Manual are to:
•Understand and follow proper safety precauons.
• Understand the R600a Refrigerant.
• Successfully perform necessary repairs.
•Successfully return the refrigerator to its proper operaonal status.
WHIRLPOOL CORPORATION assumes no responsibility for any repairs made on our
products by anyone other than authorized In-Home Service Professionals.
Copyright © 2017, Whirlpool Corporaon, Benton Harbor, MI 49022

R600A Sealed System 2017 n iii
TABLE OF CONTENTS
R600A Sealed System

 ................................................................................................................
R600A INTRODUCTION ..................................................................................................................
APPROVED R600A CONTAINERS.....................................................................................................
 ..............................................................
LEAK DETECTION ...........................................................................................................................1-4
 ....................................................................................1-5
 ..............................................................................................................................1-6
......................................................................................................................1-7
...............................................................................................................................

......................................................................................................................
..............................................................................................................
.......................................................................................................................
.................................................................
 ...............................................................................
....................................................................................................................

GENERAL INFORMATION
R600A Sealed System 2017 n 1-1
Section 1:
General Information
This section provides general safety, parts, and
information for the R600A repair process.
¾Refrigeration Safety
¾R600A Introduction
¾Approved R600a Containers
¾Storage, Handling, and Transportation of
R600a
¾Leak Detection
¾Evacuation
¾Tools and Supplys
¾Charging Kit

1-2 n R600A Sealed System 2017
GENERAL INFORMATION
Refrigeration Safety
You can be killed or seriously injured if you don't immediately
You can be killed or seriously injured if you don't follow
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can
happen if the instructions are not followed.
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety
messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.”
These words mean:
follow instructions.
instructions.
DANGER
WARNING

GENERAL INFORMATION
R600A Sealed System 2017 n 1-3
Introduction
Whirlpool is introducing R600a as a new refrigerant for new
production household refrigerators and freezers. R600a is
a hydrocarbon with the benefits of zero ozone depletion
potential (ODP) and a very low global warming potential
(GWP) as compared to other refrigerants. An important
characteristic of R600a --a hydrocarbon is it's flammability.
This Manual details the procedure for performing sealed system
work on refrigerators and freezers utilizing R600a hydrocarbon
refrigerant. Special attention is given to mitigating flammability
concerns.
Hydrocarbons
Hydrocarbons are flammable organic compounds made up of
hydrogen and carbon.
Hydrocarbon refrigerants are desirable because they have zero
ozone depletion potential (ODP) and a very low global warming
potential (GWP) compared to other refrigerants.
Hydrocarbon (HC) refrigerants have been used extensively
in household refrigerators and freezers for over 15 years in
countries such as Germany, the United Kingdom, Australia, and
Japan.
R600a
The EPA is updating the safe handling requirements under
Section 608 that currently applies to ozone depleting
refrigerants and extending them to substitutes like
hydrofluorocarbons
(HFCs). These changes strengthen the existing program, in
particular, by requiring a number of industry best practices.
Link to the EPA testing and regulations: https://www.epa.gov/
section608/revised-section-608-refrigerant-management-
regulations
Isobutane is a hydrocarbon approved for use by the EPA
as a refrigerant in household refrigerators and freezers.
As a hydrocarbon, the EPA has exempted R600a from the
requirement to recapture used refrigerant. This service manual
covers the procedure for venting R600a to atmosphere.
Link: https://www.epa.gov/snap/snap-regulations
R600a is the designation given to refrigerant grade isobutane by
the American Society of Heating, Refrigerating and Air
Conditioning Engineers (ASHRAE). ASHRAE categorizes R600a in
the A3 safety group. The A3 safety group is reserved for
refrigerants with lower toxicity, and higher flammability.
National Refrigerants, INC. Safety Data Sheet Link; www.
refrigerants.com/pdf/SDS%20R600a%20%20Isobutane.pdf
Other uses for Isobutane Link: http://www.cosmeticsinfo.org/
ingredient/isobutane
Introducon
Use Conditions
The use condions are:
1) R600a can only be used in new equipment designed
specically and clearly idened for the refrigerant.
2) Refrigerators or freezers using R600a must meet all
requirements listed in Supplement SA to UL 250.
3) A 150 gram charge size limitaon is imposed.
4) Refrigerators and freezers must meet labeling requirements.
5) Idenfying Refrigerators Containing R600a
To implement the proper safety precauons, it is necessary to
idenfy refrigerator using R600a refrigerant.
Check the Model and Serial Number tag inside the refrigerator
compartment. This tag lists the type and quanty of refrigerant
used.
Storage, Handling, and Transportation of R600a
It is the responsibility of the Service Company and Service
Technician to understand and comply with all Federal, and local
laws.
Technician Certification
Technicians must:
¾Pass a cercaon EPA exam oered by an approved
technician cercaon program in order to maintain, service,
repair, or dispose of appliances containing ODS or substute
refrigerants.
¾The cercaon exam will be updated to reect the new rules
and new refrigerants prior to this date.
¾Keep a copy of their cercate at their place of business.
¾Maintain a copy of their cercate unl three years aer no
longer operang as a technician.
¾Link; hps://www.epa.gov/sites/producon/les/2016-09/
documents/608_fact_sheet_technicians_0.pdf
(Figure K)
Approved R600a Containers
This is a Example of a Charging kit from Vulkan (Figure K). Follow
all handling instrucons listed on the cylinder or provided by the
supplier. Quanty of R600a transported should be limited to one
420 gram cylinders.

1-4 n R600A Sealed System 2017
GENERAL INFORMATION
Note: The Gas detector needs to be activated before any repairs are attempted and is to remain on
during the complete repair.
Locate the Gas detector at the lowest point and close to the work is being done.
Leak detection
Most electronic leak detectors used for HFC and HCFC leak detecon are not safe and sensive for use with ammable
refrigerants, so electronic detectors specically designed for ammable gases (or leak detecon spray) must be used.
The TIF TIF8900 is the perfect tool to be used in a situaon where a combusble gas, vapor or residue needs to be found. It is a
highly-sensive, cordless, combusble gas detector that idenes a broad range of natural gases including propane, methanol,
butane, and gasoline. Its uses include: Gas lines and Pipes, Exhaust and Fuel leaks, Propane lling staons, Fuel in marine bilges,
Heat Exchanger leaks, Check manholes for safety, Detect arson residue, IAQ (Indoor Air Quality) tests, and Liquid or gas red
heang systems.
Use a combusble gas leak detector to perform a background check around the appliance. Technicians must be trained in the
use, and the device must be cered for use with the specic refrigerant class being serviced.
Operang Instrucons
Once the baeries are fully charged, the instrument is ready to use (before use, carefully read and understand the warnings and
Cauons).
1. Turn the Instrument on in a non-contaminated atmosphere by moving the slide switch to the ON posion. The light should be
lit. No sound should be heard.
2. The lemost LED will illuminate to show that the unit is switched on.
3. Aer the automac warm up period is completed (about 30 seconds), a cking sound should be heard.
4. Adjust the sensivity control upwards unl a rapid signal is heard (Hi sensivity).

GENERAL INFORMATION
R600A Sealed System 2017 n 1-5
Gas detector Continued
5. The frequency of the ck (sound) is an indicaon of the
sensivity. Move the knob unl the cking is rapid, for High
sensivity, or slow for Low sensivity.
NOTE: If a steady ck cannot be maintained, it is indicave that
the baeries may need to be recharged.
6. Search the general area of the suspected refrigerant leak.
When a detectable compound enters the p, the ck rate
speeds up.
7. In conjuncon with the increased speed of the ck the LEDs
will light from le to right as a combusble is detected. The
larger the concentraon, the more the LEDS will light.
8. In most cases, it will not be necessary to adjust the sensivity
of the detector. However, if the siren sounds before a possible
leak source can be found, it is likely that air is contaminated with
heavy concentraons of gas. Therefore, you may desensize the
detector by moving the adjustment knob down to low sensivity
unl the cking slows to normal.
9. If your are searching for extremely small leaks, Make certain
the control knob is in the High posion or you hear rapid cking.
Ulize vacuum pumps, recovery equipment, and other tools
that are rated for and cered for use with A3 ammable
refrigerants. Vacuum pumps must be cered for the
refrigerant being used.
Evacuation:
If a vacuum pump rated for A3-refrigerant is not available,
check with your vacuum pump manufacturer for
instrucons about using equipment for A3s such as R600a.

1-6 n R600A Sealed System 2017
GENERAL INFORMATION
Refrigerants
Refrigerants
The use of ammable refrigerants in refrigeraon systems was
disconnued aer the appearance and large scale producon
of CFC refrigerants. CFC refrigerants became the refrigerants of
choice because they are low in cost, non-toxic and are not
ammable.
However, studies have shown that CFCs have damaged, and
connue to threaten, the Earth’s delicate ozone layer. In light
of this, the Montreal Protocol was established to manage the
disconnuaon of these refrigerants.
Various alternave refrigerants to CFC12 were studied
and some are now being used by the refrigeraon industry
worldwide. Among them, are some ammable
refrigerants.
Refrigerants such as (R 600a) isobutane have increased in
popularity with the consumer populaon primary because of its
environmentally benign properes. More specically, hydrocarbon
refrigerants are safe to the Earth’s ozone layer.
The Isobutane Refrigerant
Isobutane refrigerant, like other alternave refrigerants,
presents dierent thermodynamic characteriscs dierent from
those of R 12 or R134a (see gure 1).
Figure 1 shows that isobutane (R 600a) presents lower
vapour pressures than R 12 or R 134a, in the standard
operaonal temperature range for a refrigeraon system.
To beer observe the impact of substung R 12 for R 600a
in refrigeraon applicaons, please see the table.
Fig.1. - Behavior of vapor pressure of R 600a and R 134a in
relaon to R 12, according to temperature.
Compressor Label
gure 1

GENERAL INFORMATION
R600A Sealed System 2017 n 1-7
Tools & Supplies
Tools & Supplies
•Vacuum Pump; Preferred to have a rating 6 CFM capacity
•Gram measuring Scale
•¼” High Pressure Hose
•¼” Low Pressure Hose
•Exclusive manifold gages and hoses should be
used for servicing R600a Appliances. (High, Low, and
Vacuum) Hose requirements for R600a are still being
defined.
•Rubber Charging Hose with “T” Adapter & Shutoff Valve
•20’ PVC Recovery Hose
•R600a Refrigerant Maximum 420 Gram Cylinder
•Piercing Pliers
•Pinch Off Pliers
•Tubing Cutters
•Rubber Mallet
•Certified and calibrated combustible gas leak detector to
test for leaks if the system is charged with an A2L or A3
refrigerant.
•Liquid Charging Fitting
•Quick Disconnect Fittings
•Shutoff Valves
•Fire Extinguisher dry-powder fire extinguisher
rated for Class B fires
•Ventilation Fan
•Note: All tools are suggested to be Spark less tools.
Whirlpool requires and AHAM recommends using a leak
detector during the entire process. If gas or a leak is
detected, stop work and do not use tools that could cause
a spark during operation.
Figure 1
Figure 1: This is an example of a manifold gauge,
vacuum pump combinaon. Figure 2: Typical 6 cfm
vacuum pump without gauges. Figure 3: Vulkan R600a
Cylinder
Figure 2
Figure 3: Vulkan
R 6 0 0 a C y l i n d e r

1-8 n R600A Sealed System 2017
GENERAL INFORMATION
Figure 4 The LOKBOX Charging Facility is a hard plasc box with carrying
handle. It is suitable for the transport of sucient quanes of
R600a. In addion to a charging scale, hoses, and ngs, it has a
foam compartments suitable for the storage and transport of one
420 gram R600a cylinders. Figure 4
Vulcan Charging Kit includes:
•4 - ¼” High Pressure Hoses 19” long
•Both High side and Low side manifold
gages
•1 “T” Adapter
•1 “T” Adapter & Shut off Valves
•20’ PVC Recovery Hose
•R600a Refrigerant placement storage
pod
•Liquid Charging Fitting
•Vapor Charging Fitting Quick
Disconnect Fittings
•2 Shutoff Valves
With this complete kit you will have the
proper tools to remove the refrigerant
before your repair.
Then aer the sealed system repair you
can use the same kit to assist you in
evacuang and charging procedure on
the product.

Sealed System Repair
R600A Sealed System n 2-1
Section 2:
Sealed System Repair
This section provides operational Sealed system
Evacuating and Charging process.
¾Pre-Work Checks
¾Sealed System Access
¾Venting Process
¾Refrigerant Temporary Recovery
Procedure
¾Sealed System Evacuating Procedure
¾Charging Process

2-2 n R600A Sealed System
Sealed System Repair
Pre-Work Checks
Pre-Work Checks
Prior to work on an R600a refrigerator, ensure the
immediate area is suitable for working safely, and
the appropriate precauons are in place. Proper
safety checks before beginning work will minimize
the potenal for an ignion event. Take the following
precauons before working on the sealed system:
Ensure the area work environment is safe.
•The work area should be sufficiently sized.
•R600a refrigerators should not be serviced in small
poorly ventilated spaces such as very small ‘galley’
kitchens, storage closets.
•Suggested that you not perform sealed system
maintenance in spaces smaller than 6’ X 6’.
•Refrigerators in insufficiently sized spaces should be
moved to a larger area to work safely.
•The work area should be properly ventilated. Proper
ventilation allows any refrigerant inadvertently
released to disperse safely.
•When working behind the appliance, create as much
clearance as possible between the appliance and
the wall, or other obstructions, to allow proper air
movement. Locate the leak detector also behind the
appliance.
•Use supplemental venlaon, such as a fan. Ensure
the fan is located at minimum of 9 feet/3 meters
from the nearest sealed system component.
•Ensure a dry-powder re exnguisher rated for
Class B res is accessible on site.
•Use of a suitable gas detector will alert the
technician of the presence of ammable gas.
•If ammable refrigerant is detected, immediately
venlate the room, evacuate the area, and nofy
the owner or customer.
•Recheck with a combusble gas leak detector
before proceeding.
•If quesoned, inform the customer the detector
allows the work to be done safely.
•Remove any ignion sources from the work area
Disconnect power by unplugging the appliance
before servicing.
•The area should be free of open ame or burning
materials, including cigarees, candles, or similar
materials.
•Do not operate appliances that ulize open ames
or have hot surfaces electric or gas ranges, electric
or gas dryers, toasters, electric or baery powered
tools, and other small appliances while servicing the
appliance.
•Inform the homeowner/consumer that no open
ignion sources should be present in or near the area,
including cigaree smoking materials.
•Check the area and the appliance for any signs of
ignion that might have occurred prior to the service.
•If there are signs of ignion, stop work and ventalate
the work area. Maintain a safe zone around the
appliance during service work to prevent ignion
sources or entry by the customers.
•An appliance on/o switch, or power buon, is not
adequate for removing power, as voltage will sll be
present in the unit.
•Ensure all necessary supplies, tools, and parts are on-
hand.
•Maintain all equipment in accordance with
manufacturer specicaons.
•Inspect all equipment and hoses for damage prior to
each use. Do not use damaged equipment or hoses.
Sealed System Access
¾DO NOT access the sealed system by means of cung
or breaking the sealed system piping.
¾DO NOT access the sealed system by means of a torch
or any type of open ame.
¾The sealed system should only be accessed through
the process tube and through the drier.
¾Quick disconnect ngs must be used when accessing
the sealed system. Use of quick disconnect valves
minimize or eliminate the discharge of any ammable
refrigerant into the work area. Quick disconnect
ngs can be used with Schrader valves, if present, or
with piercing pliers.
¾If there is no direct means of accessing the sealed
system, use piercing pliers.
¾If the sealed system is accessed by piercing, ensure the
correct diameter ng is selected based on the size of
the sealed system pipe.

Sealed System Repair
R600A Sealed System n 2-3
Sealed System Access Procedure
¾First, Verify Failure
¾REQUIRED to Acvate the Combusble Gas Detector before
any work is started. Place the Detector at the lowest point
of the work area.
¾Ensure Pre-Work Checks in Secon 2.2 are Completed.
¾If you are working on a Sealed system with a Three Way
Valve.
¾Position 3-Way Valve to Home Position.
¾Enter diagnostic mode.
¾Initiate Step To open the Three Way Valve (refer to tech
sheet) and wait 1 minute.
¾Unplug the refrigerator.
¾Remove the Machine Compartment Cover.
¾Attach quick disconnect fittings to High Side Fitting.
¾Attach to Schrader Valve if present.
¾If Schrader Valve is not present, use piercing pliers to access
High Side of the sealed system. Attach quick disconnect
fitting to the piercing pliers. If the compressor is non
functional, connect a second piercing pliers to the
suction process tube.
R600a Refrigerant
•The LOKBOX Charging Facility is equipped with a 20’ PVC
Recovery Hose. This length should be sucient to reach an
outdoor locaon in most instances.
•Unlike tradional CFC’s and HCFC’s, the EPA allows venng
of R600a refrigerant to the outside atmosphere.
•Venng is the preferred method of removing refrigerant
from a sealed system.
Venting Process
¾When (all requirements are met, venng allows the refrigerant
to be safely dispersed in the natural environment, removing
the hazard of concentrang and transporng ammable
immediately.
¾When venng, it expands to atmospheric pressure. Venng
mes will vary for many reasons, including but not limited
to, the size of charge, atmospheric pressure, whether the
compressor is running. Connue venng the appliance for an
addional 10 minutes aer the pressure coming out ends.
¾ATTENTION: Do not vent R600a refrigerant indoors.
¾ATTENTION: Ensure there is no source of ignion near the
discharge hose.
R600a vent locations must meet the following criteria:
•R600a must be discharged to the outside environment.
•Discharge locaon must not be a public area or area where
people are unaware of the procedure taking place.
•There must be no sources of ignion near the hose discharge.
•Ensure that there is no posibilty for refrigerant to be blown back
into any buildings, or to a locaon below ground level.
Sealed System Refrigerant Venting Procedure
(Preferred)
¾Route the weighted end of the 20’ PVC Recovery Hose to an
outdoor locaon.
¾Connect the opposite end on the 20’ Recovery Hose to the
quick disconnect ng on the High Side piercing pliers to begin
venng.
¾If the compressor is funconal, run the compressor to speed the
venng process.
¾Monitor the Recovery Hose and discharge point.
¾Ensure the hose remains kink free.
¾Ensure the Refrigerant Venng Requirements are met
connually throughout the venng process.
¾Observe the mirage eect at the hose discharge as the R600a
refrigerant exits. Note when the mirage eect stops.
¾ A mirage is a naturally occurring opcal phenomenon in which
light rays are bent to produce a displaced image of distant
objects or the sky.
¾Hitting the compressor with a Rubber Mallet at this time will
remove any trapped R600a from the oil.
¾ Continue Venting for an additional 10 minutes to ensure
system is fully vented. After the sealed system is fully vented,
disconnect the Recovery Hose from the quick disconnect ng.

2-4 n R600A Sealed System
Sealed System Repair
Refrigerant Temporary Recovery Procedure
¾ If direct venng is not possible due to the appliance
locaon or other reason, the refrigerant must be
captured. The captured refrigerant should be vented
outdoors before leaving the premises. Do not travel with
any reclaimed R600A Sealed System Refrigerant. Venng
is the Preferred Method.
¾Connect one end of the Recovery Hose to the quick
disconnect fitting on the approvd Recovery Vessel.
¾Connect the other end of the Recovery Hose to the quick
disconnect fitting on the piercing pliers or shrader valve.
¾If the compressor is functional, run the compressor to
speed the venting process.
¾Allow the refrigerant to vent into the approved Recovery
Vessel for 40 minutes.
¾Monitor the hose to ensure it remains kink free
¾After the sealed system is fully vented, disconnect the
Recovery Hose from the quick disconnect fitting.
¾Purge the Recovery Hose with the leak detection trace gas
mixture to remove residual R600a.
¾Immediately remove the approved Recovery Vessel
to a suitable outdoor location and vent the bag to
atmosphere, removing all R600a refrigerant.
Recovery Vessel
ATTENTION:
Ensure Refrigerant Measuring Equipment is Maintained and
Calibrated in Accordance With Manufacturer Specifications.
Sealed System Evacuating Procedure
R600a is an extremely ecient refrigerant. This high eciency
means refrigerators using R600a refrigerant use a much
smaller charge size than a comparable refrigerator with CFC
refrigerant.
¾This small charge size increases the signicance of any error
in quanty charged. To obtain the precise charge required
use Lokring’s LOKBOX Charging Facility. This facility has a
digital scale with a high degree of accuracy, in addion to
the other required hoses and connecons.
¾Condensaon forming on the refrigerant bole will add
weight to the bole, resulng in charging errors.
¾Open the case and remove the LP (vac) combinaon gauge
manifold and set aside.
¾Thread the closed extracon valve into the holder with the
the bole R600a cartridge.

Sealed System Repair
R600A Sealed System n 2-5
¾Connect the refrigerant hose (zip ed to the charging
case) to the extracon valve (the other end should be
ghtly connected to the one-way valve aached to
charging case).
Sealed System Evacuation
Due to the narrow charging tolerances associated with
R600a refrigerant, it is necessary to draw a deep vacuum of
at least 28” of vacuum to ensure proper evacuaon. Oil in
the vacuum pump should be changed frequently to ensure
the ability to draw a deep vacuum.
¾For evacuaon connect both sides Low and high -
Connect a hose to gauge manifolds side port and the
opposite end to the upper brass-T.
¾Connect an addional charge hose to a Gauge manifold
lower male port and the other hose end to the 2nd
quick disconnect adapter. Unclip and thread the quick
disconnect adapter cap onto the high side charge port,
DO NOT CONNECT QUICK DISCONNECT TO THE ADAPTER
CAP THAT IS ON THE PRODUCT AT THIS TIME.
¾Connect a charge hose with shut o valve between vacuum
pump and lower Brass T side port.
Gauges and Hose Connection Diagram
¾Once you have all of your connecons secure you can
start the Vacuuming and Charging Process

2-6 n R600A Sealed System
Sealed System Repair
¾Turn the vacuum pump on and let it warm up for a few
minutes (warm to touch). Once warm open the ball
valve at the hose coming from the vacuum pump to
T-connecon. Open the Low Pressure gauge manifold
valve. Watch needle on the low pressure gauge unl it
reaches it’s lowest vacuum reading posion.
¾When the Low Pressure gauge needle reaches the lowest
vacuum reading, set the adjustable set pointer to cover
the vacuum needle. Close the ball valve on vacuum
pump hose. The Low Pressure / Vacuum gauge must hold
without dropping for a minimum of 60 seconds. This test
ensures that all connecons of the lling equipment are
ght and leak free.
¾Connect the quick coupling to the Low and High side
compressor lling tube. (If evacuang both sides) connect
the High Pressure quick coupling to the dryer. Slowly open
the ball valve in line to the vacuum pump.
¾Evacuate unl the Low Pressure gauge reaches the
previously set posion (about 5 mintes) of the adjustable
shadow needle. Close o the Valve to the Vacuum Pump
and wait at lease 60 seconds.
¾ Watch the shadow needle for any deecon. If you do
not see any movement you can connue and Evacuate
for adddional 10 minutes.
¾If you do see movement in the needle you may have a
leak in the sealed system that needs to be repaired.
¾If no pressure change (vacuum needle stays steady
behind shadow needle), the charging process can be
started.
Charging Process
¾At this point you can remove the High side quick connect
from the lter dryer. Keep the High side valve open and
connected. This is to remove the remaining refrigerant in
the hoses in the last step.
¾Close the ball valve to the charging staon at the lower
T-ng. Switch on the scale and set to zero.
¾Open the discharge valve on the refrigerant bole and
allow the gas to ow into the hoses.
Discharge valve on the refrigerant bottle
¾Note for liquid filling (This is the preferred process)
¾When filling with liquid refrigerant, the bottle is screwed
into the holder with the closed extraction valve in place
on the bole. The bole is placed upside down on the
scale.
¾Switch the scale on and reset to zero(Figure S). Make
sure Lower T-connecon ball valve to charging case is
closed.
Figure S
¾Open the valve that is connected to the R600a and ll
the hoses with refrigerant up to the ball valve of the
charging case T-piece(Figure T).
Figure T
T-connection ball valve to charging case

Sealed System Repair
R600A Sealed System n 2-7
¾Wait unl the display of the scale remains constant
(Stabilizes). The scale will display a weight change.
¾Open the ball valve (Figure T) at the Lower
T-connecons to charging staon and allow the
refrigerant to ow into the refrigerator circuit unl
approximately 50% of the full charge is in the system.
¾Close the ball valve of the charging case T- connecon.
Plug in the product and start the compressor.
¾Complete charge in small steps by opening the ball
valve to the Refrigerant only slightly and closing it
immediately.
¾As soon as the desired lling weight is reached, close
the ball valve at the Lower T-piece to charging staon.
¾Then close the valve on the refrigerant bole. Reopen
the ball valve at the lower T- connecon to charging
staon and allow the refrigerant remaining in the hoses
to ow into the refrigerant circuit.
¾Aer waing 1 minute, start the compressor to suck the
refrigerant from the hoses into the system. As soon as
a pressure of less than 0 PSI is reached, the hoses are
emped. Now the ball valve of the T- connecon can be
closed. The Low Pressure Gauge can be read to check
the evaporaon pressure. Aer the pressure check
disconnect the quick coupling and close the service
connector.
NOTES:

PRODUCT SPECIFICATIONS &
WARRANTY INFORMATION SOURCES
IN THE UNITED STATES:
FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL:
FOR WHIRLPOOL PRODUCTS: 1-800-253-1301
FOR KITCHENAID PRODUCTS: 1-800-422-1230
FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL:
THE TECHNICAL ASSISTANCE LINE: 1-800-832-7174
HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN
AUTHORIZED IN-HOME SERVICE PROFESSIONAL
FOR LITERATURE ORDERS (CUSTOMER EXPERIENCE CENTER):
PHONE: [phone]
FOR TECHNICAL INFORMATION AND SERVICE POINTERS:
www.servicemaers.com
IN CANADA:
FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL
1-800-461-5681
FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL:
THE TECHNICAL ASSISTANCE LINE: 1-800-488-4791
HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN
AUTHORIZED IN-HOME SERVICE PROFESSIONAL