Amana SBDE522VW User manual

16021711
Revision 0
July 2002
Service
Service Manual for Amana® models
This Base Manual covers nternational
Side by Side Refrigerators
Refer to individual Technical Sheet for
information on specific models.
International
Side by Side
Refrigerators

16021711 Rev. 0 2
Pride and workmanship go into every product to provide our customers with quality products. It is possi le, however,
that during its lifetime a product may require service. Products should e serviced only y a qualified service
technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools,
parts, testing instruments and the appropriate service manual. REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATE SERVICE MANUAL BEFORE BEGINNING REPAIRS.
Important Notices for Consumers and Servicers
!
WARNING
To avoid risk of serious injury or death, repairs should not e attempted y unauthorized personnel, dangerous
conditions (such as exposure to electrical shock) may result.
Maytag will not e responsi le for any injury or property damage from improper service procedures. If performing
service on your own product, assume responsi ility for any personal injury or property damage which may result.
To locate an authorized servicer, please consult your telephone ook or the dealer from whom you purchased this
product. For further assistance, please contact:
MAYTAG APPLIANCES SALES COMPANY OR U.S. and Canada 1-800-462-9824
ATTN:Maytag CAIR ® Center CALL U.S. customers using TTY for deaf, hearing
P.O. Box 2370 impaired, call 1-800-688-2080
Cleveland, TN 37320-2370
If outside the United States contact:
MAYTAG APPLIANCES SALES COMPANY
ATTN: Maytag CAIR® Center
P.O. Box 2370
Cleveland, TN 37320-2370
Telephone: [phone]
Recognize Safet S mbols, Words, and Labels
DANGER
!
DANGERImmediate hazards which WILL result in severe personal injury or death.
WARNING
!
WARNINGHazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION
!
CAUTIONHazards or unsafe practices which COULD result in minor personal injury or product or property
damage.
Important Information
CAUTION
!

3 16021711 Rev. 0
Important Information .................................................. 2
Product Design ............................................................. 4
Component Testing .......................................................
Service Procedures .................................................... 10
Service Equipment ..................................................... 10
Drier Replacement ...................................................... 10
Refrigerant Precautions ............................................... 11
Line Piercing Valves .................................................... 11
Open Lines .................................................................. 11
Compressor Operational Test ...................................... 11
Dehydrating Sealed Refrigeration System .................. 12
Leak Testing ............................................................... 12
Testing Systems Containing a
Refrigerant Charge................................................ 12
Testing Systems Containing
No Refrigerant Charge ......................................... 12
Restrictions ................................................................. 13
Symptoms ............................................................ 13
Testing for Restrictions ......................................... 13
Evacuation and Charging ........................................... 14
Evacuation ........................................................... 14
Charging .............................................................. 1
Refrigerant Charge................................................ 1
HFC134a Service Information ..................................... 16
Health, Safety, and Handling ................................ 16
Comparison of CFC12 and HFC134a Properties . 16
Replacement Service Compressor ............................. 17
Compressor Testing Procedures .......................... 17
Brazing ....................................................................... 17
Refrigerant Flow ...........................................................18
Cabinet Air Flow One Way ..........................................19
Cabinet Air Flow Two Way ............................................ 20
Ice and Water Dispenser Diagram ................................21
Water Valves Diagram................................................22
Typical External Sweat Pattern ................................23
Troubleshooting Chart .............................................24
System Diagnosis ........................................................27
Disassembly Procedures
Refrigerator Compartment ...................................... 30
Upper Light Socket & Lens................................... 30
Freezer Cold Control ............................................ 30
Defrost Timer..........................................................30
Adaptive Defrost Control ...................................... 30
Damper Control.......................................................31
Water Filter Assembly.............................................31
Water Tank Assembly..............................................31
Crisper Cover and Socket .................................... 31
Freezer Compartment
Freezer Light Socket ............................................ 31
Auger Motor Assembly ......................................... 31
Auger Motor ......................................................... 31
Auger Motor Capacitor............................................32
Evaporator Fan Motor Assembly .......................... 32
Evaporator Fan Motor and Fan Blade.....................32
Evaporator Removal...............................................32
Defrost Terminator (Thermostat) .......................... 32
Defrost Heater...................................................... 32
Ice Maker Removal.................................................33
Machine Compartment
Water Valves ........................................................ 33
Condenser Fan Motor and Blade ............................ 33
Compressor ...........................................................33
Condensate Drain Tube .......................................... 33
Condensate Drain Pan ........................................... 33
Overload/Relay ...................................................... 34
Condenser ............................................................. 34
Bottom of Cabinet
Front Leveling Rollers .......................................... 34
Rear Leveling Rollers ........................................... 34
Cabinet Doors
Door Gaskets ....................................................... 34
Dispenser Facade (Electronic Model) .................... 34
Dispenser Ice Chute Door ......................................3
Dispenser Light Socket .......................................... 3
Dispenser D/C Solenoid ......................................... 3
Dispenser Water Tube ........................................... 3
High Voltage Board (Electronic Model) ................... 3
Ice N Water Systems
Troubleshooting of button Dispenser .................. 36
Troubleshooting of Electronic Dispenser ................ 39
Appendix A
Owners Manual ...... .............................................A-2
Table of Contents

16021711 Rev. 0 4
Product Design
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
!
WARNING
Refrigeration System
Compressor forces high temperature vapor into fan
cooled tube and wire condenser where vapor is cooled
and condensed into high pressure liquid by circulation
of air across condenser coil. (See Refrigerant Flow
Diagram, page 18)
High pressure liquid passes into post-condenser loop
which helps to prevent condensation around freezer
compartment opening and through molecular sieve
drier and into capillary tube. Small inside diameter of
capillary offers resistance, decreasing pressure, and
temperature of liquid discharged into evaporator.
Capillary diameter and length is carefully sized for
each system.
Capillary enters evaporator at top back. Combined
liquid and saturated gas flows through back to bottom
of coil and into suction line. Aluminum tube evaporator
coil is located in freezer compartment where
circulating evaporator fan moves air through coil and
into fresh food compartment.
Large surface of evaporator allows heat to be
absorbed from both fresh food and freezer
compartments by airflow over evaporator coil causing
some of the liquid to evaporate. Temperature of
evaporator tubing near end of running cycle may vary
from -2 ° to -31.6°C.
Saturated gas is drawn off through suction line where
superheated gas enters compressor. To raise
temperature of gas, suction line is placed in heat
exchange with capillary.
Temperature Controls
Freezer compartment temperature is regulated by air
sensing thermostat at rear back of fresh food
compartment which actuates compressor. Control
capillary is inserted in well which routes capillary into
freezer. Control should be set to maintain freezer
temperature between -17.7° to -18.9°C.
Fresh food compartment temperature is regulated an air
damper control governing amount of refrigerated air
entering fresh food compartment from freezer. Fresh
food compartment temperature should be between 3.3°
and 4.4°C.
Defrost Timer System (some models)
Every 8 hours of compressor run time defrost timer
activates radiant electric defrost heater suspended
from evaporator. After 33 minutes of defrost cycle
time, timer restores circuit to compressor.
Defrost terminator (thermostat) is wired in series with
defrost heater. Terminator opens and breaks circuit
when preset high temperature is reached. After
defrost thermostat opens, thermostat remains open
until end of defrost cycle when cooling cycle starts and
terminator senses present low temperature and
closes.
Defrost heater is suspended on left side of evaporator
coil and across bottom to keep defrost drain free
flowing during defrost. Defrost water is caught in
trough under evaporator coil and flows through drain
hole in liner and drain tubing into drain pan. Air
circulated by condenser fan over pan evaporates
water.
Adaptive Defrost System (some models)
The ADC adapts the compressor run time between
defrosts to achieve optimum defrost intervals by
monitoring the cold control and length the defrost
heater is on.

Component Testing
!WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
16021711 Rev. 05
Component Description Test Procedures
Compressor When compressor electrical circuit is
energized, the start winding current
causes relay to heat. After an amount of
starting time, the start winding circuit
turns off. The relay will switch off the
start winding circuit even though
compressor has not started (for example,
when attempting to restart after
momentary power interruption).
With “open” relay, compressor will not
start because there is little or no current
to start windings. Overload protection will
open due to high locked rotor run winding
current.
With “shorted” relay or capacitor,
compressor will start and overload
protector will quickly open due to high
current of combined run and start
windings.
With open or weak capacitor,
compressor will start and run as normal
but will consume more energy.
Resistance test
1. Disconnect power to unit.
2. Discharge capacitor by shorting across terminals with a resistor for 1 minute.
NOTE: (Some compressors do not have a run capacitor.)
3. Remove leads from compressor terminals.
4. Set ohmmeter to lowest scale.
5. Check for resistance between
Terminals “S” and “C”, start winding
Terminals “R” and “C”, run winding
If either compressor winding reads open (infinite or very high resistance) or
dead short (0 ohms), replace compressor.
Ground test
1. Disconnect power to refrigerator.
2. Discharge capacitor, if present, by shorting terminals through a resistor.
3. Remove compressor leads and use an ohmmeter set on highest scale.
4. Touch one lead to compressor body (clean point of contact) and other probe
to each compressor terminal.
• If reading is obtained, compressor is grounded and must be replaced.
Operation test
If voltage, capacitor, overload, and motor winding tests do not show cause for
failure, perform the following test:
1. Disconnect power to refrigerator.
2. Discharge capacitor by shorting capacitor terminals through a resistor.
3. Remove leads from compressor terminals.
4. Wire a test cord to power switch.
5. Place time delayed fuse with UL rating equal to amp rating of motor in test
cord socket. (Refer to Technical Data Sheet)
6. Remove overload and relay.
7. Connect start, common and run leads of test cord on appropriate terminals of
compressor.
8. Attach capacitor leads of test cord together. If capacitor is used, attach
capacitor lead to a known good capacitor of same capacity.
Test configuration
9. Plug test cord into multimeter to determine start and run wattage and to check
for low voltage, which can also be a source of trouble indications.
10.With power to multimeter, press start cord switch and release.
• If compressor motor starts and draws normal wattage, compressor is
okay and trouble is in capacitor, relay/overload, freezer temperature
control, or elsewhere in system.
• If compressor does not start when direct wired, recover refrigerant at high
side. After refrigerant is recovered, repeat compressor direct wire test. If
compressor runs after recovery but would not run when direct wired
before recover, a restriction in sealed system is indicated.
• If compressor does not run when wired direct after recovery, replace faulty
compressor.
C
R
S
Fuses
Capacitor
Compressor
Switch
To AC supply

Component Testing
!WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
16021711 Rev. 0 6
Component Description Test Procedures
Capacitor
or
Run capacitor connects to relay
terminal 3 and L side of line.
Some compressors do not require a run
capacitor; refer to the Technical Data
Sheet for the unit being serviced.
1.Disconnect power to refrigerator.
2.Remove capacitor cover and disconnect capacitor wires.
3.Discharge capacitor by shorting across terminals with a resistor for 1 minute.
4.Check resistance across capacitor terminals with ohmmeter set on “X1K”
scale.
• Good—needle swings to 0 ohms and slowly moves back to infinity.
• Open—needle does not move. Replace capacitor.
• Shorted—needle moves to zero and stays. Replace capacitor.
• High resistance leak—needle jumps toward 0 and then moves back to
constant high resistance (not infinity).
Condenser Condenser is a tube and wire
construction located in machine
compartment.
Condenser is on high pressure discharge
side of compressor. Condenser function
is to transfer heat absorbed by refrigerant
to ambient.
Higher pressure gas is routed to
condenser where, as gas temperature is
reduced, gas condenses into a high
pressure liquid state. Heat transfer takes
place because discharged gas is at a
higher temperature than air that is
passing over condenser. It is very
important that adequate air flow over
condenser is maintained.
Condenser is air cooled by condenser
fan motor. If efficiency of heat transfer
from condenser to surrounding air is
impaired, condensing temperature
becomes higher. High liquid temperature
means liquid will not remove as much
heat during boiling in evaporator as
under normal conditions. This would be
indicated by high than normal head
pressures, long run time, and high
wattage. Remove any lint or other
accumulation, that would restrict normal
air movement through condenser.
From condenser the refrigerant flows into
a post condenser loop which helps
control exterior condensation on flange,
center mullion, and around freezer door.
Refrigerant the flows through the drier to
evaporator and into compressor through
suction line.
Leaks in condenser can usually be detected by using an electronic leak detector
or soap solution. Look for signs of compressor oil when checking for leaks. A
certain amount of compressor oil is circulated with refrigerant.
Leaks in post condenser loop are rare because loop is a one-piece copper tube.
For minute leaks
1. Separate condenser from rest of refrigeration system and pressurize
condenser up to a maximum of 16.2 bars with a refrigerant and dry nitrogen
combination.
2. Recheck for leaks.
WARNING
!
To avoid severe personal injury or death from sudden eruption of high
pressures gases, observe the following:
Protect against a sudden eruption if high pressures are required for leak
checking.
Do not use high pressure compressed gases in refrigeration systems
without a reliable pressure regulator and pressure relief valve in the
lines.
WARNING
!
To avoid electrical shock which can cause severe personal injury or death,
discharge capacitor through a resistor before handling.

Component Testing
!WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
16021711 Rev. 07
Component Description Test Procedures
Overload / Relay When voltage is connected and relay is
cool, current passes through relay to start
winding.
After a short time, current heats the
resistor in relay and resistance will rise
blocking current flow through relay.
Start winding remains in the circuit through
run capacitor.
Solid state relay plugs directly on
compressor start and run terminals. Relay
terminals 2 and 3 are connected within
relay. Run capacitor is connected to relay
terminal 3. L2 side of 120 VAC power is
connected to relay terminal 2.
1. Disconnect power to the refrigerator.
2. Remove relay cover and disconnect leads.
3. Check resistance across terminals 2 and 3 with an ohmmeter:
Normal = 3 to 12 ohms
Shorted = 0 ohms
Open = infinite ohms
Freezer temperature control is a capillary
tube operating a single pole, single throw
switch.
Freezer temperature control controls run
cycle through defrost timer.
Check for proper calibration with thermocouple capillary in air supply well by
recording cut-in and cut-out temperatures at middle setting. Refer to tech sheet
for model being serviced for expected temperatures.
Check control contacts are opening by disconnecting electrical leads to control
and turning control knob to coldest setting. Check for continuity across
terminals.
Altitude Counter in Feet
Meters (Feet)
Above
Sea Level
Turn Screw
Clockwise (Angular
Degrees)
Freezer
temperature control
Altitude Adjustment
When altitude adjustment is required on a
G.E. control, turn altitude adjustment
screw 1/7 turn counter clockwise for each
304 meters increase in altitude up to 3048
meters. One full turn equals 3048 meters
maximum.
In most cases the need for altitude
adjustments can be avoided by simply
turning temperature control knob to colder
setting.
610 (2,000)
1218 (4,000)
1829 (6,000)
2438 (8,000)
3048 (10,000)
30
81
129
174
216
Ice Maker Optional on some models.
See “Ice Maker” section for service
information.
ECM condenser
motor
Condenser fan moves cooling air across
condenser coil and compressor body.
Condenser fan motor is in parallel circuit
with compressor.
Check resistance across coil.
Evaporator fan
motor
Evaporator fan moves air across
evaporator coil and throughout refrigerator
cabinet.
1. Disconnect power to unit.
2. Disconnect fan motor leads.
3. Check resistance from ground connection solder. Trace to motor frame must
not exceed .05 ohms.
4. Check for voltage at connector to motor with unit in refrigeration mode and
compressor operating.
0
300
270
240
210
180 150
120
90
60
30
330

Component Testing
!WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
16021711 Rev. 0 8
Component Description Test Procedures
Refrigerator light
switch
Single pole, single throw switch
completes circuit for light when door is
open.
Check resistant across terminals.
Switch arm depressed
“NO” terminals Open
Switch arm up
“NO” terminals Closed
Freezer light /
Interlock switch
Single pole, Double throw switch
completes circuit for light when door is
open. Completes circuit for dispenser
when door is closed
Check resistant across terminals.
Switch arm depressed
“NO” terminals Open
”NC” terminals Closed
Switch arm not depressed
“NC” terminals Open
“NO” terminals Closed
Drier Drier is placed at post condenser loop
outlet and passes liquefied refrigerant to
capillary.
Desiccant (20) 8 x 12 4AXH - 7 M>S> -
Grams
Drier must be changed every time the system is opened for testing or
compressor replacement.
NOTE: Drier used in R12 sealed system is not interchangeable with
drier used in R134a sealed system. Always replace drier in R134a
system with Amana part number B2150504.
Before opening refrigeration system, recover HFC134a refrigerant for safe
disposal.
1. Cut drier out of system using the following procedure. Do not unbraze drier.
2. Applying heat to remove drier will drive moisture into the system.
3. Score capillary tube close to drier and break.
4. Reform inlet tube to drier allowing enough space for large tube cutter.
5. Cut circumference of drier 31.75cm below condenser inlet tube joint to drier.
6. Remove drier.
7. Apply heat trap paste on post condenser tubes to protect grommets from high
heat.
8. Unbraze remaining part of drier. Remove drier from system.
9. Discard drier in safe place. Do not leave drier with customer. If refrigerator is
under warranty, old drier must accompany warranty claim.
Defrost timer Timer motor operates only when freezer
control is closed.
After specified amount of actual
operating time, inner cam in timer throws
the contacts from terminal 4, compressor
circuit, to terminal 2, defrost
thermostat/defrost heater circuit.
After specified defrost cycle time, timer
cam resets the circuitry through terminal
4 to compressor.
1. To check timer motor winding, check for continuity between terminals 1 and 3
of timer.
2. Depending on rotating position of the cam, terminal 1 of timer is common to
both terminal 2, the defrost mode, and terminal 4, the compressor mode.
There should never be continuity between terminals 2 and 4.
3. With continuity between terminals 1 and 4, rotate timer knob clockwise until
audible click is heard. When the click is heard, reading between terminals 1
and 4 should be infinite and there should be continuity between terminals 1
and 2.
4. Continuing to rotate time knob until a second click is heard should restore
circuit between terminals 1 and 4.
Adaptive defrost
control (ADC)
The ADC adapts the compressor run
time between defrosts to achieve
optimum defrost intervals by monitoring
the cold control and length the defrost
heater is on.
Refer to specific Technical Data Sheet with unit for troubleshooting procedure.
WARNING
!
To avoid death or severe personal injury, cut drier at correct location.
Cutting drier at incorrect location will allow desiccant beads to scatter. If
spilled, completely clean area of beads.

Component Testing
!WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
16021711 Rev. 09
Component Description Test Procedures
Water valve Controls water flow to the ice maker.
Controlled by thermostat in ice maker.
See Ice Maker Section for further
information.
Check resistance across coil windings.
Evaporator Inner volume of evaporator allows liquid
refrigerant discharged from capillary to
expand into refrigerant gas.
Expansion cools evaporator tube and fin
temperature to approximately –28.9
° C
transferring heat from freezer section to
refrigerant.
Passing through suction line to
compressor, the refrigerant picks up
superheat (a relationship between
pressure and temperature that assures
complete vaporization of liquid
refrigerant) as the result of capillary tube
soldered to suction line.
Refrigerant gas is pulled through suction
line by compressor, completing
refrigeration cycle.
Test for leaks in evaporator with electronic leak detector or with soap solution.
Compressor oil is circulated with refrigerant; check for oil when checking for
leaks.
For minute leaks
1. Separate evaporator from rest of refrigeration system and pressurize
evaporator up to a maximum of 9.65 bar with a refrigerant and dry nitrogen
combination.
2. Recheck for leaks.
Evaporator defrost
heater
Activated when defrost thermostat,
defrost timer, and freezer control
complete circuit through heater.
Check resistance across heater.
To check defrost system :
1. Thermocouple defrost thermostat and plug refrigerator into wattmeter.
2. Turn into defrost mode. Wattmeter should read specified watts (according to
Technical Data Sheet).
3. When defrost thermostat reaches specified temperature
± 9 ° C( ± 5 ° F) (see
Technical Data Sheet), thermostat should interrupt power to heater.
Thermostat Thermostat is in a series circuit with
terminal 2 of defrost timer, and defrost
heater. Circuit is complete if evaporator
fan motor operates when cold.
Controls the circuit from freezer
thermostat through defrost terminator to
defrost heater. Opens and breaks circuit
when thermostat senses preset high
temperature.
Test continuity across terminals.
With power off and evaporator coil below freezing, thermostat should show
continuity when checked with ohmmeter. See “Heater, evaporator (defrost)”
section for additional tests.
After defrost thermostat opens, thermostat remains open until end of defrost
cycle and refrigerator starts cooling again. Defrost thermostat senses a preset
low temperature and resets (closes).
Damper Control Damper control balances the air delivery
between refrigerator and freezer
compartments providing temperature
control for refrigerator.
Internal capillary activates damper
control and door closes restricting flow of
air from freezer compartment to
refrigerator compartment.
Subject capillary to appropriate temperature (refer to Technical Data Sheet for
model being serviced).
Damper door should close to within .6cm of completely shut.
If altitude adjustment is required, turn altitude adjustment screw 1/8 turn
clockwise for each 305 meters increase in altitude.
There are no electrical connections to damper control. See Technical Data Sheet
for damper specifications for unit being serviced.
WARNING
!
To avoid severe personal injury or death from sudden erruption of
high pressurres gases, observe the following:
•Protect against a sudden eruption if high pressures are required
for leak checking.
•Do not use high pressure compressed gases in refrigeration
systems without a reliable pressure regulator and pressure relief
valve in the lines.

16021711 Rev. 0 10
Drier Replacement
Before opening refrigeration system, recover
HFC134a refrigerant for safe disposa .
Every time sea ed HFC134a system is repaired, drier
fi ter must be rep aced with, part # B2150504.
Cut drier out of system by comp eting the fo owing
steps. Do not unbraze drier fi ter. App ying heat to
remove drier wi drive moisture into system.
To avoid risk of severe persona injury or death, cut
drier at correct ocation. Cutting drier at incorrect
ocation wi a ow desiccant beads to scatter.
Comp ete y c ean area of beads, if spi ed.
1. Score capi ary tube c ose to drier and break.
2. Reform in et tube to drier a owing enough space
for arge tube cutter.
3. Cut circumference of drier at 3.2cm, be ow
condenser in et tube joint to drier.
4. Remove drier.
5. App y heat trap paste on post condenser tubes to
protect grommets from high heat.
6. Unbraze remaining part of drier. Remove drier
from system.
7. Discard drier in safe p ace. Do not eave drier with
customer. If refrigerator is under warranty, o d
drier must accompany warranty c aim.
Service Procedures
Service Equipment
Listed be ow is equipment needed for proper servicing
of HFC134a systems. Verify equipment is confirmed
by manufacturer as being compatib e with HFC134a
and ester oi system.
Equipment must be exc usive y used for HFC134a.
Exc usive use of equipment on y app ies to ita ic items.
Evacuation pump
Check with vacuum pump supp ier to verify equipment
is compatib e for HFC134a. Robinair, Mode 15600
2 stage, 6 cubic feet per minute pump is
recommended.
Four-way manifold gauge set, with low loss hoses
Leak detector
Charging cylinder
Line piercing saddle valve
(Schroeder va ves). Sea s must be HFC134a and
ester oi compatib e. Line piercing va ves may be used
for diagnosis but are not suitab e for evacuation or
charging, due to minute ho es pierced in tubing. Do
not eave mechanica access va ves on system.
Va ves eventua y wi eak. Mo ecu es of HFC134a are
sma er than other refrigerants and wi eak where
other refrigerants wou d not.
Swagging tools
Flaring tools
Tubing cutter
Flux
Sil-Fos
Silver solder
Oil for swagging and flaring
Use on y part # R0157532
Copper tubing
Use on y part # R0174075 and # R0174076
Dry nitrogen
99.5% minimum purity, with -40°C or ower dew point
Crimp tool
Tube bender
Micron vacuum gauge
Process tube adaptor it
Heat trap paste
ICI appliance grade HFC134a
To avoid risk of e ectrica shock, persona injury, or death, disconnect e ectrica power source to unit, un ess test
procedures require power to be connected. Discharge capacitor through a 10,000 ohm resistor before attempting
to service. Ensure a earthing wires are connected before certifying unit as repaired and/or operationa .
!
WARNING
WARNING
!