Turboair MUR-28 User manual

Turbo Air Speed up the Pace of Innovation
Undercounter
Refrigerator & Freezer
Installation and Operation Manual
CAUTION!
PLEASE KEEP POWER
SWITCH ON BEFORE
OPERATING THIS EQUIPMENT
Please read this manual completely before attempting to install or operate this equipment!
REFRIGERATOR
MUR-28
MUR-36
MUR-48
MUR-60
MUR-72
REFRIGERATOR
MUF-28
MUF-48
MUF-60
www.turboairinc.com

2
CONTENTS
SPECIFICATIONS
SERIAL NUMBER
PAGE
The serial number is located on the rating label which is on the left interior wall.
Please retain the unitʼs serial number for service purpose.
SPECIFICATION 2
SERIAL NUMBER 2
INSTALLATION OF CASTER 3
INSTALLATION OF DRAIN PAN 4
HOW TO CLEAN THE PAN SUPPORTER 5
INSTALLATION 6
CLEANING & CAUTION 7
BASIC OPERATION 8
UNDERCOUNTER REFRIGERATOR
MODEL COMP H.P. V/Hz REFRIGERANT AMPS WEIGHT
MUR-36 1/4 115V/60Hz R-134A 6.6A 199lbs
MUR-48 1/3 115V/60Hz R-134A 6.5A 246lbs
MUR-28 1/5 115V/60Hz R-134A 3.3A 163lbs
MUR-72 1/2 115V/60Hz R-134A 9.9A 352lbs
MUR-60 1/3 115V/60Hz R-134A 8.9A 282lbs
UNDERCOUNTER FREEZER
MODEL COMP H.P. V/Hz REFRIGERANT AMPS WEIGHT
MUF-48 1/2 115V/60Hz R-134A 8.3A 246lbs
MUF-28 1/3 115V/60Hz R-134A 5.3A 163lbs
MUF-60 1/2 115V/60Hz R-134A 9A 282lbs
BEFORE REQUESTIONG SERVICE 13
DOORS REVERSIBLE INSTRUCTION 9-12
WARRANTY 16-18
STAINLESS STEEL EQUIPMENT CARE AND CLEANING 14-15

3
INSTALLATION OF CASTERS
1) Screw the caster (in rear side) and the caster brakes (in front side) by using
caster wrench.
2) Use the caster shims to level the cabinet, if necessary, by inserting them to
stems of the casters.

4
INSTALLATION OF DRAIN PAN
1) In damp season, when the drain water overflow the drain pan, remove the
drain pan and pour the water away. And then set the drain pan back up as
below drawing please. (Model : MST-28, MST-28-12, MUR-28, MUF-28)
MST-28, MST-28-12,
MUR-28, MUF-28

5
HOW TO CLEAN THE PAN SUPPORTER
1) Remove the Guide Pans and Pans. Then pull out the Pan Supporter. Clean
the pan supporter and reinstall in place.
MODEL
MUR-28
MUR-36, MUR-48
MUR-60, MUR-72

6
INSTALLATION
1. GOOD AIR CIRCULATION
- Be sure to avoid any object which may stop the air flow.
- Be sure that there is ample air space so that air can flow through the rear of the unit.
- Turbo Air recommends that the rear of the unit be no less than 5 inches from the wall.
2. PLACE ON STRONG GROUND
- Be sure the location chosen has a floor strong enough to support the total weight of
the cabinet and contents.
3. DO NOT PLACE NEAR HEAT
- Be sure to avoid hot corners and locations near stoves.
- High ambient temperature will make much lower cooling efficiency.
4. INDOOR USAGE ONLY
- Be sure to install this unit indoor, so it will not get wet from the rain.
5. STABILIZING
- Make sure the unit is installed in a stable condition with the front wheels locked
while in use.
6. LEVELING
- Be sure that the unit is level from front to back and side to side.
7. UNIT SHOULD BE ON DEDICATED OUTLET.

7
CLEANING
CAUTION
1. POWER CORD
- Be sure the power cord is connected to the proper voltage.
- A protected circuit of the correct voltage and amperage must be run for connection
of the line cord.
- Turn ʻoffʼ the power switch before disconnecting the power cord, whenever
performing maintenance functions or cleaning the refrigerated cabinet.
- Compressor warranties are void if compressor burns out due to low voltage.
2. RE-STARTING
- If disconnected, wait 5 minutes before re-starting.
Before cleaning, turn unit off at power switch.
1. CLEANING THE INTERIOR AND EXTERIOR
- The interior and exterior of the unit can be cleaned using warm water with soap.
- Do not use an abrasive cleaner because it will scratch the surface.
2. COMPRESSOR AND CONDENSER
- Be sure to keep the condenser coil must be free of dust because of cooling
effect higher.
3. CLEAN THE GASKET
- The door gasket should be cleaned frequently to maintain proper sealing.
4. CHECK AFTER CLEANING
- Plug unit back in and turn on power switch.
- Check that the unit is operating properly.

8
BASIC OPERATION
1. The controller(thermostat) is located at the right inside of the unit.
2. The factory setting for the control is ‘Normal’
3. Set toward ‘Cool’ for higher temperature and ‘Cold’ for lower temperature.
4. The thermostat controls compressor’s on/off by sensing inside temperature.
If thermostat knob is pointing at OFF, compressor and condenser fan motor
would not run.
Keep unit unplugged, if not in use for a long period of time.
REFRIGERATORS
•
•

9
Doors Reversible Instruction
(For MUR-28 / MUF-28 only)
1.DOOR
DOOR
TOP HINGE
BOTTOM HINGE
SPRING BAR
4.DOOR BUSHING 3 mm DOOR BUSHING
5 mm DOOR BUSHING
2..TOP HINGE/BOTTOM HINGE
3.SPRING BAR
一.MAIN COMPONENTS INSTRUCTION

10
Doors Reversible Instruction
(For MUR-28 / MUF-28 only)
UNIT COVER CAP
二. CHANGE REVERSIBLE DOOR （MST-28 -711 S MUR-28 MUF-28 )
6.UNIT COVER CAP
1.Unscrew the top hinge
4.Unscrew the screws located on right of
bottom hinge.
5.M5 BOLT/M6 BOLT
2.Take apart top hinge from unit.
3.Lift the door, then remove it.

11
Doors Reversible Instruction
(For MUR-28 / MUF-28 only)
6.Pull out spring bar from the right
side of door.
5.Remove door bushing from right-
top side of door.
4.Take apart door dushing from the
right bottom side of door .
3.Screw the screws located on left
of bottom hinge.
7.Take apart unit cover cap from
the left-top side of door.
8.Take off unit cover cap from the
left-top side of door, then install it in
the right side of door hole.

12
Doors Reversible Instruction
(For MUR-28 / MUF-28 only)
12.After installing the
door,screw the top hinge(follow
the arrow ).
9.Put spring bar into the left
of door.
14.Follow the arrow while you
open the door.
13.Fix the top hinge with
screwer
10.Assemble the door bushing
(3mm) in the left-top position of
door.
11.Install the door bushing
(5mm) in the left bottom side of
door.

13
BEFORE REQUESTING SERVICE
SYMPTOMS CAUSES SOLUTIONS
Refrigerator(Freezer)
is freezing(melting)
food.
The unit does not
refrigerate at all.
The unit does not
refrigerate well.
There is a loud noise.
There are dew-drops
on the unit exterior.
There are dew-drops
on the unit interior.
The door does not
close tightly.
• The setting temperature is too
low(high) to maintain food
freshness.
• There is a power connection
failure problem.
• The unit is in sunlight or near a
heating device.
• The unit contains hot food or too
much food.
• The unit door is opened too
frequently or left open too long.
• The temp. dial is not on the
correct position.
• The condenser is clogged.
• The floor is too weak or the
leveling feet are set incorrectly.
• The backside of the unit is too
close to the wall.
• The tray is not in the correct
position.
• High-moisture air can produce
dewdrops during rainy seasons.
• The door is opened too
frequently or left open too long.
• Damp food is stored.
• The door is bent.
• The unit is not level.
• The door gasket has come out.
• Turn the temperature dial to a
warmer(colder) setting.
•
Check the power cord to make sure
the unit is pluged in it correctly
.
• Move out of sunlight or away
from heater.
• Check the condition of stored
food.
• Check the position of the temp
control dial.
• Check the installation and
adjust the tray position.
• Wipe with a dry cloth.
• Keep the door closed to
remove dewdrops.
• Level the unit again.
• Reposition the gasket.
The following points are not malfunctions:
• A water-flowing sound can be heard when the compressor stops.
This is the sound of REFRIGERANT flowing.
• The compressor does not run during the defrost cycle.

14
STAINLESS STEEL EQUIPMENT CARE AND CLEANING
CAUTION : Do not use any steel wool, abrasive or chlorine based products to
clean stainless steel surfaces.
Stainless Steel Opponents
There are three basic things which can break down your stainless steel’s passivity layer and allow
corrosion to rear its ugly head.
1) Scratches from wire brushes, scrapers, and steel pads are just a few examples of items that
can be abrasive to stainless steel’s surface.
2) Deposits left on your stainless steel can leave spots. You may have hard or soft water depend-
ing on what part of the country you live in. Hard water can leave spots. Hard water that is
heated can leave deposits if left to sit too long. These deposits can cause the passive layer to
break down and rust your stainless steel. All deposits left from food prep or service should be
removed as soon as possible.
3) Chlorides are present in table salt, food, and water. Household and industrial cleaners are the
worst type of chlorides to use.
8 step that can help prevent rust on stainless steel:
1. Using the correct cleaning tools
Use non-abrasive tools when cleaning your stainless steel products. The stainless steel’s
passive layer will not be harmed by soft cloths and plastic scouring pads. Step 2 tells you how
to find the polishing marks.
2. Cleaning along the polish lines
Polishing lines or “grain” are visible on some stainless steels. Always scrub parallel to visible
lines on some stainless steels. Use a plastic scouring pad or soft cloth when you cannot see
the grain.
3. Use alkaline, alkaline chlorinated or non-chloride containing cleaners
While many traditional cleaners are loaded with chlorides, the industry is providing an ever
increasing choice of non-chloride cleaners. If you are not sure of your cleaners chloride content
contact your cleaner supplier. If they tell you that your present cleaner contains chlorides, ask if
they have an alternative. Avoid cleaners containing quaternary salts as they can attack
stainless steel, causing pitting and rusting.

15
4. Water Treatment
To reduce deposits, soften the hard water when possible. Installation of certain filters can
remove corrosive and distasteful elements. Salts in a properly maintained water softener can
be to your advantage. Contact a treatment specialist if you are not sure of the proper water
treatment.
5. Maintaining the cleanliness of your food equipment
Use cleaners at recommended strength (alkaline, alkaline chlorinated or non-chloride). Avoid
build-up of hard stains by cleaning frequently. When boiling water with your stainless steel
equipment, the single most likely cause of damage is chlorides in the water. Heating nay
cleaners containing chlorides will have the same damaging effects.
6. Rinse
When using chlorinated cleaners you must rinse and wipe dry immediately. It is better to wipe
standing cleaning agents and water as soon as possible. Allow the stainless steel equipment to
air dry. Oxygen helps maintain the passivity film on stainless steel.
7. Hydrochloric acid (muriatic acid) should never be used on stainless steel.
8. Regularly restore/passivate stainless steel.
Recommended cleaners for certain situation/environments of stainless steel.
A) Soap, ammonia and detergent medallion applied with a cloth or sponge can be used for
routine cleaning.
B) Arcal 20, Lac-O-Nu Ecoshine applied provides barrier film for fingerprints and smears.
C) Cameo, Talc, Zud First Impression is applied by rubbing in the direction of the polished lines
for stubborn stains and discoloring.
D) Easy-off and De-Grease it oven aid are excellent for removals on all finishes for grease-fatty
acids, blood and burnt-on foods.
E) Any good commercial detergent can be applied with a sponge or cloth to remove grease and
oil.
F) Benefit, Super Sheen, Sheila Shine are good for restoration/passivation.

Turbo air warrants to the original purchaser of every new Turbo air refrigerated unit, the cabinet and all parts thereof, to be free
from defects in material or workmanship, under normal use and service, for a period of two (2) year from the date of original
installation or 27 months after shipment date from Turbo air , whichever occurs first.
Any parts covered by this warranty that are examined and determined by Turbo air to have been defective within two (2) year of
original installation or twenty seven (27) months after shipment date from manufacturer, whichever occurs first, shall be
repaired or replaced as stated below. Turbo air shall be deemed to have fully complied with its obligation under the foregoing
warranties by electing either one of the following procedures, at the sole discretion of Turbo air.
1. Furnishing a replacement part, freight collect, in even exchange for the returned part, freight collect.
2. Receiving the defective part, freight collect; repairing it; and returning it, freight collect.
In addition to the (2) two year warranty stated above, Turbo air warrants its hermetically and semi-hermetically sealed
compressor to be free from defects in both material and workmanship under normal use and service for a period of three (3)
additional years from the date of original installation but not to exceed five (5) years and three (3) months after shipment from
manufacturer.
Compressors determined by Turbo air have been defective within this extended time period will, at Turbo airʼs option, be either
repaired or replaced with a compressor or compressor parts of similar design and capacity.
The three (3) year extended compressor warranty applies only to hermetically and semi-hermetically sealed parts of the
compressor and does not apply to any other parts or components, including, but not limited to, cabinet, paint finish, temperature
control, refrigerant, metering device, driers, motor starting equipment, fan assembly any other electrical component, etcetera.
The five year compressor warranty detailed above will be voided if the following procedure is not carefully adhered to:
1. This system contains R134A refrigerant and polyol ester lubricant. The Polyol ester lubricant has rapid moisture absorbing
qualities. If long exposure to the ambient conditions occur, the lubricant must be removed and replaced with new. Listed below
are the approved lubricants for the Tecumseh compressors.
1 ICI-Emkarate RL 184
2 Emery-2927-A
3 Mobile Artic 22A
Failure to comply with recommended lubricant specification will void the compressor warranty.
2. Dryer replacement is very important and must be changed when a system is opened for servicing. dryer must be used with XH-
9 desiccant.
3. Micron level vacuums must be achieved to insure low moisture levels in the system. 500 microns or lower must obtained.
MANUFACTURING COMPANY
TWO YEAR WARRANTY
ADDITIONAL THREE YEAR COMPRESSOR WARRANTY
134A(404A) COMPRESSOR WARRANTY

Turbo airʼs sole obligation under this warranty is limited to either repair or replacement of parts, subject to the additional
limitations below. This warranty neither assumes nor authorizes any person to assume obligations other than expressly covered by
this warranty.
1. WARRANTY IS NOT TRANSFERABLE. This warranty is not assignable and applies only in favor of the original
purchaser/user to whom delivered. ANY SUCH ASSIGNMENT OR TRANSFER SHALL VOID THE WARRANTIES HEREIN
MADE AND SHALL VOID ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
2. NO CONSEQUENTIAL DAMAGES. TURBO AIR IS NOT RESPONSIBLE FOR ECONOMIC LOSS; PROFIT LOSS OR
SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOSSES OR DAMAGES
ARISING FROM FOOD OR PRODUCT SPOILAGE CLAIMS WHETHER OR NOT ON ACCOUNT OF REFRIGERATION
FAILURE.
3. ALTERATION, NEGLECT, ABUSE, MISUSE, ACCIDENT, DAMAGE DURING TRANSIT OR INSTALLATION, FIRE,
FLOOD, ACTS OF GOD. TURBO AIR is not responsible for the repair or replacement of any parts that Turbo Air determines
have been subjected after the date of manufacture to alteration, neglect, abuse, misuse, accident, damage during transit or
installation, fire, flood, or an Act of God.
4. NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO
OTHER WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, EXCEPT THE TWO(2) YEAR WARRANTY AND THE
ADDITIONAL THREE (3) YEAR COMPRESSOR WARRANTY AS DESCRIBED ABOVE. THESE WARRANTIES ARE
EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, INCLUDING IMPLIED WARRANTY AND MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE
DESCRIPTION ON THE FACE HEREOF.
5. TRANSPORTATION COSTS. Turbo Air will accept parts covered under this warranty freight collect, provided that shipment
has received prior approval. Turbo Air is not responsible for any other transporation costs, but will ship freight collect parts
either repaired or replaced under these warranties.
6. WARRANTY CLAIMS. All claims should include: model number of the cooler, the serial number of the cabinet, proof of
purchase, date of installation, and all pertinent information supporting the existence of the alleged defect. Any action or breach
of these warranty provisions must be commenced within two (2) year after that cause of action has accrued.
What is NOT covered by this warranty
4184 E. Conant St.
Long Beach, CA 90808
TEL : [phone]
FAX : [phone]
TOLL FREE : 1-800-627-0032
(U.S.A. & Canada)
Website : www.turboairinc.com

Warranty Claims...
All claims for parts or labor must be made directly thorough Turbo Air.
All claims should include: model number of the unit, the serial number of the cabinet, proof of purchase, date of installation, and all
pertinent information supporting the alleged defect.
In case of compressor replacement under warranty, either compressor or compressor tag must be returned to Turbo Air along with
above listed information.
Failure to comply with warranty policies will result in voiding claims.
Two Year Parts & Labor Warranty...
Turbo Air warrants all new refrigerated components, the cabinet and all parts, to be free from defects in materials or workmanship,
under normal and proper use and maintenance service as specified by Turbo Air and upon proper installation and start-up in
accordance with the instruction packet supplied with each Turbo air unit. Turbo Airʼs obligation under this warranty is limited to a period
of two (2) year from the date of original installation or 27 months after shipment date from Turbo Air, whichever occurs first.
Any part, covered under this warranty, that are by Turbo Air to have been defective within two (2) year of original installation or twenty seven
(27) months after shipment date from manufacturer, whichever occurs first, is limited to the repair or replacement, including labor
charges, of defective parts or assemblies. The labor warranty shall include standard straight time labor charges only and reasonable
travel time, as determined by Turbo Air.
Additional Three Year Compressor Warranty...
In addition to the two (2) year warranty stated adove, Turbo Air warrants its hermetically sealed compressor to be free from defects in
both material and workmanship under normal and proper use and maintenance service for a period of three (3) additional years from
the date of original installation, but not to exceed five (5) years and three(3) months after shipment from the manufacturer.
Compressor determined by Turbo Air to have been defective within this extended period will, at Turbo Airʼs discretion, be either
repaired or replaced with a compressor or compressor parts of similar design and capacity.
The three (3) year extended compressor warranty applies only to hermetically sealed parts of the compressor and does not apply to any
other parts or components, including, but not limited to, cabinet, paint finish, temperature control, refrigerant, metering device, driers,
motor starting equipment, fan assembly or and other electrical components, etcetera.
404A / 134a Compressor Warranty...
The five-year compressor warranty detailed above will be void if the following procedure is not carefully adhered to:
1. This system contains R404A or R134a refrigerant and polyol ester lubricant. The polyol ester lubricant has rapid moisture absorbing
qualities.
2. Drier replacement is very important and must be changed when a system is opened for servicing. A620 copper drier or better is
highly recommended.
3. Micron level vacuums must be achieved to insure low moisture levels in the system. 500 microns or lower must be obtained.
4. When compressor is grounded, suction drier and 620 drier or better must be replaced.
5. Compressor must be obtained through Turbo Air, unless otherwise specified in writing, through Turbo Airʼs warranty department.
404A / 134a Compressor Warranty...
Turbo Airʼs sole obligation under this warranty is limited to either repair or replacement of parts, subject to the additional limitations
below. This warranty neither assumes nor authorizes any person to assume obligations other than those expressly covered by this
warranty.
NO CONSEQUENTIAL DAMAGES. TURBO AIR IS NOT RESPONSIBLE FOR ECONOMIC LOSS; PROFIT LOSS; OR SPECIAL,
INDIRECT, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOSSES, OR DAMAGES ARISING FROM
FOOD OR PRODUCT SPOILAGE REGARDLESS OF WHETHER OR NOT THEY RESULT FROM REFRIGERATION FAILURE.
WARRANTY IS NOT TRANSFERABLE, This warranty is not assignable and applies only in favor of the original purchaser/user to
whom delivered. ANY SUCH ASSIGNMENT OR TRANSFER SHALL VOID THE WARRANNTIES HEREIN AND SHALL VOID ALL
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR LABOR COVERAGE FOR
COMPONENT FAILURE OR OTHER THE WARRANTY PACKET PROVIDED WITH THE UNIT.
ALTERATION, NEGLECT, ABUSE, MISUSE, ACCIDENT, DAMAGE DURING TRANSIT OR INSTALLATION, FIRE, FOOD, ACTS
OF GOD. Turbo Air is not responsible for the repair or replacement of any parts that Turbo Air determines have been subjected after
the date of manufacture to alteration, neglect, abuse, misuse, accident, damage during transit or installation, fire, flood, or act of GOD.
IMPROPER ELECTRICAL CONNECTIONS. TURBO AIR IS NOT RESPONSIBLE FOR THE REPAIR OR REPLACEMENT OF
FAILED OR DAMAGED COMPONENTS RESULTING FROM ELECTRICAL POWER FAILURE, THE USE OF EXTENSION CORDS,
LOW VOLTAGE, OR VOLTAGE DROPS TO THE UNIT. NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE; THERE ARE NO OTHER WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, EXCEPT THE TWO
(2) YEAR PARTS & LABOR WARRANTY AND THE ADDITIONAL THREE (3) YEAR COMPRESSOR WARRANTY AS DESCRIBED
ABOVE. THESE WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, INCLUDING IMPLIED WARRANTY
AND MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO WARRANTIES, WHICH EXTEND
BEYOND THE DESCRIPTION ON THE FACE HEREOF.
Outside U.S.and Canada; This warranty does not apply to, and Turbo Air is not responsible for, any warranty claims made on products
sold or used outside the continent of the United States and Canada.
New Extended Warranty policy applies to all units sold by Turbo Air starting Dec.1, 2012