Model 20
Saline Slush Freezer
Operating Instructions
030990-M
7/23/01
Complete this page for quick reference when service is required:
Taylor Distributor:
Address:
Phone:
Service:
Parts:
Date of Installation:
Information found on the data label:
Model Number:
Serial Number:
Electrical Specs: Voltage Cycle
Phase
Maximum Fuse Size: A
Minimum Wire Ampacity: A
E July, 2001 Taylor
All rights reserved.
030990--M
Taylor Company
The word Taylor and the Crown design
are registered trademarks in the United States
of America and certain other countries.
a division of Carrier Commercial Refrigeration, Inc.
750 N. Blackhawk Blvd.
Rockton, IL 61072
Table of Contents
Section 1 To the Installer 1....................................
Installer Safety 1..............................................
Site Preparation 1.............................................
Air Cooled Units 2.............................................
Electrical Connections 2........................................
Refrigerant 3..................................................
Section 2 To the Operator 4...................................
Compressor Warranty Disclaimer 4..............................
Section 3 Safety 5............................................
Section 4 Operator Parts Identification 7.......................
Section 5 Operating Procedures 9.............................
Section 6 Refrigeration Principle 11.............................
Section 7 Refrigeration Schematic 12...........................
Section 8 Electrical Principle 13................................
Section 9 Troubleshooting Guide 14............................
Section 10 Parts List 16.........................................
Wiring Diagram 18..............................................
Note: Contin u ing research results in steady improvements; therefore, information
in this manual is subject to change without notice.
Model 20 Table of Contents
Notes:
Table of Contents Model 20
Section 1 To the Installer
The following are general installation instructions. For
complete installation details, please see the check out
card.
Installer Safety
In all areas of the world, equipment should be
installed in accordance with existing local codes.
Please contact your local authorities if you have any
questions.
Care should be taken to ensure that all basic safety
practices are followed during the installation and
servicing activities related to the installation and
service of Taylor equipment.
S Only authorized Taylor service personnel
should perform installation and repairs on
the equipment.
S Authorized service personnel should consult
OSHA Standard 29CFRI910.147 or the
applicable code of the local area for the
industry standards on lockout/tagout
procedures before beginning any installation
or repairs.
S Authorized service personnel must ensure
that the proper PPE is available and worn
when required during installation and
service.
S Authorized service personnel must remove
all metal jewelry, rings, and watches before
working on electrical equipment.
The main power supply(s) to the equipment
must be disconnected prior to performing any repairs.
Failure to follow this instruction may result in personal
injury or death from electrical shock or hazardous
moving parts as well as poor performance or damage
to the equipment.
Note:Allrepairsmustbeperformedbyan
authorized Taylor Service Technician.
Site Preparation
Review the area the unit is to be installed in before
uncrating the unit making, sure that all possible
hazards the user or equipment may come into have
been addressed.
For Indoor Use Only: This unit is designed to operate
indoors, under normal ambient temperatures of
70_-75_F(21_-24_C). This unit has successfully
performed in high ambient temperatures of
104_(40_C) at reduced capacities.
This unit must NOT be installed in an area
where a water jet or hose can be used. NEVER use a
water jet or hose to rinse or clean the unit. Failure to
follow this instruction may result in electrocution.
Uncrate the unit and inspect it for damage. Report any
damage to your Taylor Distributor.
This unit must be installed on a level surface
to avoid the hazard of tipping. Extreme care should be
taken in moving this equipment for any reason. Two or
more persons are required to safely move this unit.
Failure to comply may result in personal injury or
equipment damage.
The Model 20 comes equipped with four casters; two
are locking. To install the casters, tip the unit back to
expose the front caster pads. (Note: The front of the
unit contains the control switch.) Install both locking
casters. Block and lock both front casters. Tip the unit
forward and install the two remaining casters.
This unit has many sharp edges that can
cause severe injuries.
Model 20
This piece of equipment is made in the USA and has
USA sizes of hardware. All metric conversions are
approximate and vary in size.
1
To th e Installer
081208
Air Cooled Units
DO NOT obstruct air intake and discharge openings:
Always allow a minimum of 3” (76 mm) clearance
around all sides of the unit for adequate air flow across
the condenser. Failure to allow adequate clearance
can reduce the equipment’s performance and cause
permanent damage to the compressor.
Do not allow the drape cloth to cover the side panel
louvers. This may limit air flow to the condenser.
CAUTION: To protect the life of the
compressor, continuous “No Load” operation of
the unit should NOT exceed two hours. (“No Load”
operation of the unit means running the unit with just
the heat transfer medium in place.)
Electrical Connections
Each machine requires one power supply. The Model
20 is supplied with a cord and grounding type plug. The
wall outlet must be rated 15A minimum and properly
grounded.
In the United States, this equipment is intended to be
installed in accordance with the National Electrical
Code (NEC), ANSI/NFPA 70--1987. The purpose of
the NEC code is the practical safeguarding of persons
and property from hazards arising from the use of
electricity. This code contains provisions considered
necessary for safety. Compliance therewith and
proper maintenance will result in an installation
essentially free from hazard!
In all other areas of the world, equipment should be
installed in accordance with the existing local codes.
Please contact your local authorities.
FOLLOW YOUR LOCAL ELECTRICAL CODES!
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
CAUTION: Always disconnect the power
supply before servicing this equipment. Failure to
comply may result in electric shock or damage to the
equipment.
S Stationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3mm installed in the external
installation.
S Appliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
S Supply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
This unit is provided with an equipotential
grounding lug that is to be properly attached to the rear
of the frame by the authorized installer. The installation
location is marked by the equipotential bonding
symbol (5021 of IEC 60417-1) on both the removable
panel and the equipments frame.
080916
To th e Installer Model 20
2
Refrigerant
In consideration of our environment, Taylor
proudly uses only earth friendly HFC refrigerants. The
HFC refrigerant used in this unit is R404A. This
refrigerant is generally considered non-toxic and
non-flammable, with an Ozone Depleting Potential
(ODP) of zero (0).
However, any gas under pressure is potentially
hazardous and must be handled with caution.
NEVER fill any refrigerant cylinder completely with
liquid. Filling the cylinder to approximately 80% will
allow for normal expansion.
Refrigerant liquid sprayed onto the skin may
cause serious damage to tissue. Keep eyes and skin
protected. If refrigerant burns should occur, flush
immediately with cold water. If burns are severe, apply
ice packs and contact a physician immediately .
Taylor reminds technicians to be cautious of
government laws regarding refrigerant recovery,
recycling, and reclaiming systems. If you have any
questions regarding these laws, please contact the
factory Service Department.
WARNING: R404A refrigerant used in
conjunction with polyolester oils is extremely moisture
absorbent. When opening a refrigeration system, the
maximum time the system is open must not exceed 15
minutes. Cap all open tubing to prevent humid air or
water from being absorbed by the oil.
Model 20
080916
3
To th e Installer
Section 2 To the Operator
The equipment you have purchased has been
carefully engineered and manufactured to give you
dependable operation.
The Model 20, when properly operated and cared for,
will produce a consistent quality product. Like all
mechanical products, this machine will require
cleaning and scheduled maintenance. A minimum
amount of care and attention is necessary if the
operating procedures outlined in this manual are
followed closely.
This Operator’s Manual should be read before
operating or performing any maintenance on your
equipment.
Your equipment will NOT eventually compensate and
correct for any errors during the set-up or filling
operations. Thus, the initial assembly and priming
procedures are of extreme importance. It is strongly
recommended that all personnel responsible for the
equipment’s operation study these procedures
together in order to be properly trained and to make
sure that no misunderstandings exist.
In the event you should require technical assistance,
please contact your local authorized Taylor Distributor
for service.
Note: Warranty is valid only if the parts are authorized
Taylor parts, purchased from an authorized Taylor
Distributor, and the required service work is provided
by an authorized Taylor service technician. Taylor
reserves the right to deny warranty claims on
equipment or parts if non--approved parts or
refrigerant were installed in the machine, system
modifications were performed beyond factory
recommendations, or it is determined that the failure
was caused by neglect or abuse.
Note: Constant research results in steady
improvements; therefore, information in this
manual is subject to change without notice.
If the crossed out wheeled bin symbol is
affixed to this product, it signifies that this product is
compliant with the EU Directive as well as other similar
legislation in effect after August 13, 2005. Therefore,
it must be collected separately after its use is
completed, and cannot be disposed as unsorted
municipal waste.
The user is responsible for returning the product to the
appropriate collection facility, as specified by your local
code.
For additional information regarding applicable local
laws, please contact the municipal facility and/or local
distributor.
Compressor Warranty Disclaimer
The refrigeration compressors on this machine are
warranted for the term indicated on the warranty card
accompanying this machine. However, due to the
Montreal Protocol and the U.S. Clean Air Act
Amendments of 1990, many new refrigerants are
being tested and developed, thus finding their way into
the service industry.
Some of these new refrigerants are being advertised
as “drop-in” replacements for numerous applications.
It should be noted that, in the event of ordinary service
to this machines refrigeration system, only the
refrigerant specified on the affixed data label
should be used. The unauthorized use of alternate
refrigerants will void your compressor warranty. It will
be the owners responsibility to make this fact known
to any technician he employs.
It should also be noted that Taylor does not warrant the
refrigerant used in its equipment. For example, if the
refrigerant is lost during the course of ordinary service
to this machine, Taylor has no obligation to either
supply or provide its replacement either at billable or
unbillable terms. Taylor does have the obligation to
recommend a suitable replacement if the original
refrigerant is banned, obsoleted, or no longer available
during the five year warranty of the compressor.
Taylor will continue to monitor the industry and test
new alternates as they are being developed. Should a
new alternate prove, through our testing, that it would
be accepted as a drop-in replacement, then the above
disclaimer would become null and void.
To find out the current status of an alternate refrigerant
as it relates to your compressor warranty, call the local
Taylor Distributor or the Taylor factory. Be prepared to
provide the Model/Serial Number of the unit in
question.
080916
To th e Operator Model 20
4
Section 3 Safety
We at Taylor are concerned about the safety of the
operator when he or she comes in contact with the
equipment and its parts. Taylor has gone to extreme
efforts to design and manufacture built--in safety
features to protect both you and the service technician.
IMPORTANT -- Failure to adhere to the
following safety precautions may result in severe
personal injury. Failure to comply with these
warnings may damage the machine and its
components. Component damage will result in
part replacement expense and service repair
expense.
To Operate Safely:
DO NOT operate the equipment without
reading this operator’s manual. Failure to follow this
instruction may result in equipment damage, poor
equipment performance, health hazards, or personal
injury.
This unit is provided with an equipotential
grounding lug that is to be properly attached to the rear
of the frame by the authorized installer. The installation
location is marked by the equipotential bonding
symbol (5021 of IEC 60417-1) on both the removable
panel and the equipments frame.
DO NOT use a water jet to clean or rinse this
equipment. Failure to follow these instructions may
result in serious electrical shock.
S DO NOT operate this equipment unless it is
properly grounded.
S DO NOT operate this equipment with larger
fuses than specified on the equipment data
label.
S DO NOT attempt any repairs unless the
main power supply to the equipment has
been disconnected. Contact your local
authorized Taylor Distributor for service.
S Stationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3mm installed in the external
installation.
S Appliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
S Supply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
Failure to follow these instructions may result in
electrocution. Contact your local authorized Taylor
Distributor for service.
Model 20
080916
5
Safety
S DO NOT allow untrained personnel to
operate this equipment.
S DO NOT operate the equipment unless all
service panels and access doors are
restrained with screws.
Failure to follow these instructions may result in severe
personal injury to fingers or hands from hazardous
moving parts.
This unit has many sharp edges that can
cause severe injuries.
This equipment must be placed on a level
surface. Failure to comply may result in personal injury
or equipment damage.
Cleaning and sanitizing schedules are
governed by your state or local regulatory agencies
and must be followed accordingly. Please refer to the
cleaning section of this manual for the proper
procedure to clean this unit.
DO NOT obstruct air intake and discharge openings:
3” (76 mm) minimum air space on all sides. Failure to
follow this instruction may cause poor equipment
performance and damage to the machine.
For Indoor Use Only: This unit is designed to operate
indoors, under normal ambient temperatures of 70_ -
75_F(21_ -24_C). The equipment has successfully
performed in high ambient temperatures of
104_(40_C) at reduced capacities.
NOISE LEVEL: Airborne noise emission does not
exceed 78 dB(A) when measured at a distance of 1.0
meter from the surface of the machine and at a height
of 1.6 meters from the floor.
080916
Safety Model 20
6
Section 4 Operator Parts Identification
Item Description Part No.
1 Evaporator A.--Insulated X30615
2 Screw--1/4--20 x 3/8 PHL 038872
3 Switch--Pushbutton/Neon Display 030629--12
3a Button Only--Black 031073
4 Panel A.--Side (Front) X38874
5 Screw--10--32 x 3/8 PHL 038871
Model 20
Item Description Part No.
6 Caster--Swivel 3/4 Stem 3” Wheel 038993
7 Basin--Plain 030618--BL
8 Scraper--Saline Ice 030634
9 Panel A.--Side Removable (Rear) X38873
10 Caster--Swivel 3/4 Stem 3” Wheel 038994
7
Operator Parts Identification
K
Item Description Part No.
Item Description Part No.
1 Evaporator A.--Insulated X30615
*2 Valve--Expansion--Auto 047232
* Boot--Expansion Valve 027137
3 Condenser--AC 12 x 14 x 1.87 046556
*4 Motor--Fan9Watt 012768--12
* Enclosure--Fan 014261
* Bracket--Fan 025675
* Fan--5 Blade 10” Pull 021371
5 Dryer--Filter HP62 048901
Operator Parts Identification Model 20
8
6 Valve--Access 1/4 x 3/8 043232
7 Compressor -- AJA2419ZXA 051787--12
8 Relay--3 Pole 115 V 012725--12
9 Relay--Start--Compressor 030846--12
10 Block--Terminal 2P, L1, N 039421
11 Capacitor--Run 15UF/370V 027087
12 Capacitor-- Start 270--324UF 030847--12
13 Switch--Pressure 440 PSI 048230
* Cover--Control Box 030631
*Not Shown.
Section 5 Operating Procedures
The Model 20 has been designed to produce a soft,
pliable slush for surgical procedures. The volume of
slush produced is dictated by the surgical procedure;
however, the full capacity of the removable basin is 6
liters.
The following steps illustrate how to prepare the unit to
produce the slush. All sterilization procedures should
follow hospital standards and local health codes.
Step 1
Plug the power cord into a 115 volt wall receptacle.
Step 2
Place the unit in the “ON” position by pressing the
control switch. A light will illuminate, indicating that the
refrigeration system is operating.
Figure 1
Step 3
Add a heat transfer medium (1200 cc’s minimum/1300
cc’s maximum) to the insulated evaporator. The heat
transfer medium is dictated by the hospital. The
solution should be a good conductor of heat, but
should not freeze at a temperature above --37.2_C.
Example 1: 50% by volume solution of alcohol and
water.
Example 2: 50% by volume solution of glycerin and
water.
Example 3: 50% by volume solution of propylene
glycol and water.
Allow the unit to operate for approximately 20 minutes
to pre--cool the heat transfer medium. Note: This time
can be significantly reduced if the heat transfer
medium is pre--cooled in a refrigerator.
Step 4
After the pre--cooling period, drape the unit according
to acceptable sterile techniques. Lay the sterile drape
sheet over the insulated evaporator and over the sides
of the unit. Do not cover the louvers.
Step 5
Using sterile techniques, gently place the sterile
removable basin onto the drape and into the well of the
unit.
Figure 2
Model 20
Figure 3
9
Operating Procedures
Step 6
Add approximately 1 -- 4 liters of saline or an
appropriate solution to the removable basin.
(Example: electrolyte solution and any required
membrane preservatives or chemical additives). To
improve freezing time, this solution should be
pre--cooled to 4_C(40_F) before adding it to the
removable basin.
Figure 4
Step 7
When ice begins to form (approximately 15 minutes),
begin scraping and stirring the solution. A
polycarbonate scraper is supplied with the unit and
may be gas or steam sterilized. Continue stirring the
solution until the slush is ready for use. Constant
scraping will improve freezing time. If the unit is left
unattended for prolonged periods, the slush could
freeze to the sides of the basin. If this should occur,
scrape and stir the solution until it returns to a soft
slush consistency.
Step 9
Once the slush is no longer required, place the control
switch in the “OFF” position. Remove the basin for
cleaning.
Step 10
To drain the insulated evaporator, place a collection
pan under the right rear corner of the unit, directly
below the copper drain tube.
Using a screwdriver, loosen the drain plug in the center
of the insulated evaporator until all transfer solution
has been drained. Tighten the drain plug.
IMPORTANT: It is assumed that all operating rooms
are under strict clean and sterile conditions. However,
even under the best of conditions, there will always be
the threat of minute airborne particles of lint and dust.
The Model 20 uses a small fan, fan blade and
condenser for the removal of heat from the refrigerant.
Air travels through the rear louver, across acondenser,
and is blown out the sides and the front of the unit. This
small amount of air movement allows lint and dust to
travel into the machine to collect on the condenser. If
the condenser is not cleaned, a sufficient amount of
dust may break loose and escape out the sides and
front of the machine. In addition, a dirty condenser will
reduce the unit’s refrigeration capabilities to produce
slush in a sufficient amount of time.
Therefore, routine maintenance must be performed.
The rear panel must be removed and the condenser
and inside of the machine must be vacuumed. Use a
soft brush to clean the condenser.
Figure 6
The intervals at which this job is performed aredictated
by hospital standards and by how often the Model 20
is operated. It is suggested that the machine be
inspected after each use.
Figure 5
Step 8
As the slush is used, it can be replaced with an equal
volume of pre--cooled solution.
Operating Procedures Model 20
with the sharp metal fins. Failure to comply may result
in personal injury.
10
When cleaning the condenser, use caution
Section 6 Refrigeration Principle
The insulated evaporator assembly has copper tubing
coiled and soldered around the outer diameter. An
automatic expansion valve sprays liquid refrigerant
through the copper tubing. This refrigerant rapidly
boils, picking up heat from the solution in the
removable basin. As a low pressure gas, the
refrigerant now travels out the copper tubing and down
to the compressor.
The automatic expansion valve is pre--set from the
factory at 9--10 PSI. To make any adjustments to the
automatic expansion valve, place the low side line of
a gauge set to the low side access port near the
compressor. Place the pushbutton control switch in the
ON position. While observing the gauge, turn the
adjustment knob of the automatic expansion valve. A
clockwise adjustment increases the low side pressure.
A counterclockwise adjustment decreases the low
side pressure.
Low Side: The point between the outlet of the
automatic expansion valve as it enters the insulated
evaporator, all the way to the compressor.
Low Side Pressure: Automatic expansion valve
setting of 9--10 PSI.
The compressor is a pump which circulates refrigerant
throughout the system. This compressor receives the
low pressure gas from the insulated evaporator. It
compresses the gas and sends it to the condenser as
a high pressure gas. As a safety measure, the
compressor has an internal overload. Should an
overload occur, the compressor will automatically shut
down. Once it has cooled, the compressor will start up
again.
The condenser receives the high pressure gas from
the compressor. A fan motor and blade pull air through
the rear of the unit, and across the condenser. At this
time, heat is removed from the refrigerant gas and is
dissipated out the sides and front of the machine.
Once heat is removed from the gas, the refrigerant
turns into a liquid and drops to the bottom of the
condenser.
The filter dryer receives the liquid refrigerant from the
condenser. It filters impurities from the refrigerant
before it reaches the automatic expansion valve. Any
time the refrigerant is discharged from the system, a
new filter dryer must be installed.
The heat exchanger consists of the liquid line and
suction line soldered together.This is used to sub--cool
the liquid refrigerant in the high side before it reaches
the automatic expansion valve. The colder the
refrigerant is before it reaches the automatic
expansion valve, the more heat it will pick up when it
enters the insulated evaporator. More importantly, the
heat exchanger vaporizes any liquid refrigerant that
might leave the insulated evaporator before it reaches
the compressor.
If the frozen slush in the removable basin was left
unattended for prolonged periods, the liquid refrigerant
entering the insulated evaporator would not be able to
boil off rapidly enough, due to the lack of heat. This
would cause the refrigerant to leave the insulated
evaporator as a liquid. If this occurred, frost would build
up near or on the compressor. Liquid refrigerant
allowed to enter the compressor would boil rapidly
because of the heat in the compressor. This violent
boiling action would allow the refrigerant to pick up
excessive oil in the compressor.
If the machine is subject to this condition, the
excessive oil will separate from the refrigerant as it
enters the insulated evaporator. The oil will occupy
space that the refrigerant must occupy to sufficiently
remove heat from the solution. In addition, oil leaving
a compressor could cause damage to the compressor.
To correct an oil--logged insulated evaporator, open
the automatic expansion valve to approximately 20
PSI. Pour hot water into the insulated evaporator and
place the unit in the ON position. This will cause the
refrigerant to flow into the insulated evaporator very
rapidly. It will then boil violently because of the hot
water. This violent boiling will allow the refrigerant to
pick up the oil and carry it back down to the
compressor. Once the hot water begins to cool, place
the machine in the OFF position. Adjust the automatic
expansion valve to the original setting.
High Side: The point between the outlet of the
compressor, all the way to the expansion valve.
High Side Pressure: Should be maintained between
180--200 PSI, depending on room ambient conditions.
Model 20
11
Refrigeration Principle
Section 7 Refrigeration Schematic
Refrigeration Schematic Model 20
12
Section 8 Electrical Principle
The pushbutton control switch starts and stops the
refrigeration cycle. Once the pushbutton controlswitch
is pressed, the compressor and fan should run. In
addition, a light located inside the button will illuminate,
which indicates that the machine is on. Once the
pushbutton control switch is pressed again, the
refrigeration cycle will stop, and the light will go out.
Under no circumstances should the pushbutton
control switch be pressed repeatedly. This will
cause the compressor start and stop, thus causing
possible damage to the compressor and other
electrical components.
The start and run capacitors are located in the terminal
box. These components are used in conjunction with
the compressor. Once the pushbutton control switch is
placed in the ON position, power will travel to the start
capacitor to get the compressor started. After the
compressor has started, the run capacitor takes over
to keep the compressor running.
Model 20
13
Electrical Principle
Section 9 Troubleshooting G uide
PROBLEM PROBABLE CAUSE REMEDY
1. Solution takes excessively
long to freeze to a slush
consistency.
a. Solution added to removable basin
was above 4_C(40_F).
b. Improper use of heat transfer
medium.
c. Shortage of refrigerant as
evidenced by low suction and
head pressures.
d. Solution was left in removable
basin unattended. No scraping.
Ice formed on basin walls;
therefore, solution in center of
basin remains liquid.
e. Faulty automatic expansion valve
as evidenced by suction pressure
not stabilizing at 3 -- 4 PSI (21 -28 kPa). (Pressure fluctuates.)
f. Dirty condenser as evidenced by
high head pressure.
g. Compressor is going out on
overload.
a. Solution added to the removable
basin should be below 4_C
(40_F).
b. Heat transfer medium must be a
good conductor of heat and
pre--cooled prior to adding the
solution.
c. Call a service technician.
d. Constant scraping and agitating is
necessary to refrigerate the
solution.
e. Call a service technician.
f. Clean the condenser regularly.
g. Allow the compressor to cool. It
will automatically start up again.
Check to make sure the unit is the
only appliance running on the
same 15A circuit.
h. Fan does not operate as
evidenced by high head pressure.
i. Oil is trapped in copper tubing
around the insulated evaporator.
2. Unit does not operate
after control switch is
pressed (no fan or
compressor operation).
Troubleshooting Guide Model 20
a. Unit is unplugged. a. Plug into appropriate wall
b. Control switch is defective. b. Call a service technician to
c. Faulty coil in compressor
contactor as evidenced by line
voltage at the coil, but no
compressor or fan operation.
14
h. Call a service technician.
i. Call a service technician.
receptacle.
replace the control switch.
c. Call a service technician to
replace the compressor contactor.
PROBLEM PROBABLE CAUSE REMEDY
3. Compressor does not
operate after the control
switch is pressed, but the
fan motor does operate.
4. Compressor continually
goes out on overload.
a. Faulty start capacitor. a. Call a service technician to
replace the start capacitor.
b. Faulty capacitor relay. b. Call a service technician to
replace the capacitor relay.
c. Faulty run capacitor, as evidenced
by compressor which started but
was unable to stay running.
d. Compressor is going out on
overload.
a. Compressor motor windings short
to ground. Disconnect power and
check all three terminals in the
compressor terminal box for
continuity to compressor casing.
b. Low or high line voltage. While the
unit is running, check voltage
supply at the compressor relay.
c. Tight bearings, causing the motor
to overheat as evidenced by a
high amperage reading at the
compressor terminal box. The
RLA of the motor is stamped on
the side of the compressor.
c. Call a service technician to
replace the run capacitor.
d. Allow the compressor to cool. It
will automatically start up again.
a. Call a service technician.
b. Contact an electrician to correct
incoming voltage. If low voltage,
check to be sure the unit is the
only appliance running on the
same 15A circuit.
c. Call a service technician to
replace the compressor.
d. Faulty run capacitor. d. Call a service technician to
replace the run capacitor.
e. Faulty start capacitor. e. Call a service technician to
replace the start capacitor.
f. Faulty capacitor relay as
evidenced by compressor which
does not start, or the start
capacitor will continue to break
down.
f. Call a service technician to
replace the relay and, if needed,
replace the start capacitor.
Model 20
15
Troubleshooting Guide
Section 10 Parts List
UPDATE
HP62 -- J7128501/Up
REMARKS PARTS
CLASS
QTY. WARR.
DESCRIPTION PART
NUMBER
BASIN-PLAIN 030618-BLK 1 103
SCRAPER-SALINE ICE 030634 2 103
BLOCK-TERMINAL 2P-L1,N 039421 1 103 115/60/1
BLOCK-TERMINAL 2P-L1,L2 039422 1 103 208-230/60/1
BLOCK-TERMINAL-7 POLE GREEN 024156 1 103 220-240/50/1
CASTER-SWV 3/4 STEM 3IN WHEEL 038994 2 103
CASTER-SWV 3/4STM3IN WHL W/BRK 038993 2 103
COMPRESSOR AJA2419ZXA 051787- 1 512
CAPACITOR-RUN- 15UF/370V 027087 1 103 ANY VOLTAGE
CAPACITOR-START- 88-108UF/330V 030847-27 1 103 220-240/50/1
CAPACITOR-START-161-193UF/330V 051698 1 103 208-230/60/1
CAPACITOR-START-270-324UF/110V 030847-12 1 103 115/60/1
RELAY-START-COMPRESSOR 030846-12 1 103 115/60/1
RELAY-START-COMPRESSOR 031789 1 103 208-230/60/1
RELAY-START-COMPRESSOR 051792 1 103 220-240/50/1
CONDENSER-AC-12LX14HX1.87T 3RW 046556 1 103
CORD A. *20* X31080-SER 1 103
DIAGRAM-WIRING*M 20* 051813- 1 000
DRYER-FILTER-HP62-3/8 X 1/4S 048901 1 000
EMBLEM-TAYLOR MODEL 20 031002 1 000
ENCLOSURE-FAN 014261 1 103
EVAPORATOR A.-INSULATED *20* X30615 1 512 WITH HOOD
HANDLE-STNLS FLUSH PULL 019043 2 103
HOOK-CORD *20* 031850 2 103
LABEL-CAUTION-GROUND-CORD-MULT 032165 1 000
LABEL-DANGER-EXPLOSION RISK 030902-C 1 000
LABEL-WARNING-COVER 051433 3 000
LABEL-WARNING-COVER 051433 1 000
MAN-OPER 20 030990-M 2 000
MOTOR-FAN 9 WATT 012768- 1 103
FAN-5 BLADE 10 ” PULL 28DEG CW 021371 1 103
PANEL A.-SIDE *M 20* X38874 1 103
+ Available Separately
Parts List Model 20
16
PANEL A.-SIDE REMOVABLE *M 20* X38873 1 103
UPDATE
REMARKSWARR.
CLASS
QTY.PART
NUMBER
DESCRIPTION PARTS
PLUG-DRAIN-WYOTT 023953-5 1 103 BASIN
O-RING-.424 ID X .103 W 023953-6 1 000
RELAY-3 POLE 012725- 1 103
SWITCH-PRESSURE 440PSI-SOLDER 048230 1 103
SWITCH-PUSHBUTTON/NEON DISPLAY 030629- 1 103
BUTTON 031073 1 000 COVER POWER SWITCH
VALVE-ACCESS 1/4FL X 3/8SOLDER 043232 1 103
VALVE-ACCESS-1/4 MFLX1/4 S-90 047016 1 103
VALVE-EXP-AUTO-1/4S X 1/4FPT 047232 1 103
BOOT-EXPANSION VALVE 027137 1 000
+ Available Separately
Model 20 Parts List
17
Model 20
051813--12
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