Motak MSD-1DREC-HC User manual

Upright EconomyReach-in
Refrigerator & Freezer
Service, Installation and Care Manual
Please read this manual completely before attempting to install or operate this equipment.
Notify carrier of damage! Inspect all components immediately.
I M P O R T A N T I N F O R M A T I O N R E
A D B E F O R E U S E PLEASE SAVE
THESE INSTRUCTIONS!

Service and Installation Manual
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2
COMMECIAL REFRIGERATOR SAFETY
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 injure you
and others. All safety messages will follow the Safety Alert Symbol and either the words” DANGER”,
“WARNING” or “CAUTION”.
Caution means that failure to heed this safety statement may result in minor
or moderate personal injury, or property or equipment damage.
Danger means that failure to heed this safety statement may result in severe
personal injury or death.
Warning means that failure to heed this safety statement may result in
extensive product damage, serious personal injury, or death.
❖All safety messages will alert you to what the potential hazard is, tell you how to reduce the chance of
injury, and let you know what can happen if the instructions are not followed.
❖If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
❖This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety. Children should
be supervised to ensure that they do not play with the appliance.
❖This appliance can be used by children aged from 8 years and above and persons with reduced
physical sensory or mental capabilities or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be
made by children without supervision.
❖Keep the appliance and its cord out of reach of children less than 8 years of age.
❖Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
❖The appliance uses flammable insulation blowing gas C5H10, disposal of the appliance shall in
accordance with the regulations of local authorities.

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CAUTION FOR SAFETY.
1. Leave enough space from the wall to the cabinet and the ceiling; DO NOT install back of unit flush to wall. It
needs more than six inches (6”/20 cm) from the cabinet to wall.
2. Please keep away all packing material from the lower front area from heat radiation to avoid fire.
3. It’s prohibited to store flammable, volatile chemical, or explosives.
4. A dedicated circuit with protection to a single-phase socket that is grounded must be used as per local
codes.
5. Do not connect grounding wire to a water or gas pipe.
6. Do not collided or fiercely vibrated when in transportation; DO NOT tilt more than 45’’ for the inclination of
thecabinet.
7. Please refer to the Trouble Shooting references when the unit is facing some problems. Do not attempt to
solve the problem on your own. Please refer to certified technician only.
8. Risk of fire or explosion. Flammable refrigerant used. Consult repair manual/owner’s guide before
attempting to service this product. All safety precautions must be followed.
9. Risk of fire or explosion. Dispose of properly in accordance with federal or local regulations. Flammable
refrigerant used.
10. Risk of fire or explosion due to puncture of refrigerant tubing; follow handling instructions carefully.
Flammable refrigerant used.
11. Keep clear of obstruction all ventilation openings in the appliance enclosure or in the structure for building-
in.
12. Servicing shall be done by the authorized service personnel, so as to minimize the risk of possible ignition
due to incorrect parts or improperservice.
Risk of fire or explosion. Flammable refrigerant used. Do not use mechanical
devices to defrost refrigerator. Do not puncture refrigeranttubing.
Risk of fire or explosion. Flammable refrigerant used. To be repaired only
by trained service personnel. Do not puncture refrigerant tubing.
Component parts shall be replaced with like components and that servicing shall be done by factory
authorized service personnel, so as to minimize the risk of possible ignition due to incorrect parts or improper
service.
Les pièces de rechange doivent être remplacées par les components relatifs et les opérations doivent être
faites par les professionnels afin de minimaliser le risque d’allumage à cause des parts incorrects ou des
opérations impropres.
CAUTION –Risk Of Fire Or Explosion Due To Puncture Of Refrigerant Tubing; Follow Handling Instructions
Carefully. Flammable Refrigerant Used
DANGER: Risk of child entrapment. Before you throw away your old refrigerator or freezer:
Take off the doors
Leave the shelves in place so that children may not easily climb inside.
This equipment is not suitable for installation in non-commercial or residential application.
The optimum performance temperature is a Maximum of an ambient temperature of 85°F. If this
appliance is operated at or above 95°F ambient and humidity above 70% the unit will cease to
function properly and would not be covered by the warranty.
CAUTION: If this equipment is operated outside these conditions, maintaining temperature and
excessive frost accumulation with the equipment will occur that are not covered by the warranty.

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4
CONTENTS
RECEIVING & INSPECTING EQUIPMENT ..................................................................................4
SPECIFICATIONS ...............................................................................................................5
INSTALLATION........................................................................................................................6
OPERATION ..........................................................................................................................7
MAINTENANCE................................................................................................................. 9
WIRING DIAGRAM ........................................................................................................11
All rights reserved. Reproduction without written permission is prohibited.
SERIAL NUMBER INFORMATION
The serial number of all self-contained refrigerators and freezers is located inside the unit on the left hand
side near the top on the wall.
Always have the serial number of your unit available when calling for parts or service.
This manual covers standard units only. If you have a custom unit, consult the customer service department
at the number listed in the back cover.
RECEIVING AND INSPECTING THEEQUIPMENT
Even though most equipment is shipped crated, care should be taken during unloading so the equipment is
not damaged while being moved into the building.
1. Visually inspect the exterior of the package and skid or container. Any damage should be noted and
reported to the delivering carrier immediately.
2. If damaged, open and inspect the contents with the carrier.
3. In the event that the exterior is not damaged, yet upon opening, there is concealed damage to the
equipment notify the carrier. Notification should be made verbally as well as in writtenform.
4.Request an inspection by the shipping company of the damaged equipment. This should be done within
10 days from receipt of the equipment.
5. Be certain to check the compressor compartment housing and visually inspect the refrigeration package.
Be sure lines are secure and base is stillintact.
6. Freight carriers can supply the necessary damage formsupon request.
7. Retain all crating material until an inspection has been made or waived.

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5
SPECIFICATION
MODEL#
V/Hz/Ph
AMPS
HP
Shelves/
Shelf Size
Max Weight
Load per
Shelf
Max Weight
Load per
Model
Cord
Lgth
(ft)
CHARGE
OZ
SHIP
WEIGHT
LBS
NEMA
PLUG
STORAGE
CAPACITY
Cu-ft
MSD-1DR-
EC-HC
115/60/1
3
1/3
3/
25.7 x 20.9
53 lbs
553 lbs
8.2
3.88
249
5-15P
25
MSD-1DF-
EC-HC
115/60/1
7
2/3
3/
25.7 x 20.9
53 lbs
542 lbs
8.2
3.88
269
5-15P
25

Service and Installation Manual
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6
INSTALLATION
Location
Units represented in this manual are intended for indoor use in a permanent structure only. Be sure the
location chosen has a floor strong enough to support the total weight of the cabinet and contents. A fully
loaded unit can weigh as much as 1500 pounds. Reinforce the floor as necessary to provide for maximum
loading. For the most efficient refrigeration, be sure to provide good air circulation inside and out.
Inside cabinet:
Do not pack the units so full that air cannot circulate. The refrigerated air is discharged at the top rear of the
unit. It is important to allow for proper air flow from the top rear to the bottom of the unit. Obstructions to this
air flow can cause evaporator coil freeze ups and loss of temperature or overflow of water from the
evaporator drain pan. The shelves have a rear turn up on them to prevent this. However, bags and other
items can still be located to the far rear of the cabinet. Air is brought into the evaporator coil with fans
mounted to the front of the coil.
Outside cabinet:
Be sure that the unit has access to ample air. Avoid hot corners and locations near stoves and ovens.
It is recommended that the unit be installed no closer than 2" from any wall with at least 12" of clear space
above the unit.
Equipment shipped with casters must be installed to promote proper air flow for the operation of the
cabinet and to maintain the Health Code for clean ability. Without the installation of the caster will
cause a void of warranty and Health Code violations. Be sure that the unit has access to ample air.
Avoid hot corners and location near ranges and oven. This equipment works be in a controlled
environment, with ambient temperature below 90°F (32°C). It is recommended that the unit be
installed no closer than 2” from any wall. This equipment is also supplies with “bumper” that must be
installed on the back of the unit. Failure to do so may cause compressor and other vital component
failure, and will void the equipment’s warranty.
Leveling
A level cabinet looks better and will perform better because the doors will line up with the frames properly.
Use a level to make sure the unit is level from front to back and side to side. Units supplied with legs will
have adjustable bullet feet to make the necessary adjustments. If the unit is supplied with casters, no
adjustments are available. Ensure the floor where the unit is to be located is level.
Stabilizing
All models are supplied with casters for your convenience, ease of cleaning underneath and for mobility. It is
very important, however, that the cabinet be installed in a stable condition with the front wheels locked while
in use.
Should it become necessary to lay the unit on its side or back for any reason, allow at least 24 hours before
start-up to allow compressor oil to flow back into place. Failure to meet this requirement can cause
compressor failure and unit damage.
Unit repairs will not be subject to standard unit warranties if due to improper installation
procedures.
Electrical connection
Refer to the amperage data on page 5, the serial tag, your local code or the National Electrical Code to be
sure the unit is connected to the proper power source.
The unit must be turned OFF and disconnected from the power source whenever
performing service, maintenance functions or cleaning the refrigerated area.

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7
OPERATION
Do not throw items into the storage area. Failure to heed these recommendations
could result in damage to the interior of the cabinet.
Refrigerators: During the refrigeration cycle, the evaporator fans wilt run continuously except when one or
more doors are open. The door switch will deactivate the fans when opened. (There is no interior light.)
1. Every 6 hours, the unit will turn off and to allow the evaporator coil to defrost. The controller now displays
the defrost symbol. When the coil temperature reaches 41°F or after 20 minutes of defrost, the unit will
turn on again.
2. The factory setting for the temperature range is 34°F to 38°F.
Freezers: During the refrigeration cycle the controller supplies power to the condensing unit and evaporator
fan motors. The evaporator fans will run at any time when the evaporator coil temperature is below 54° F,they
will run continuously except when the door is opened but cycle off during a defrost period.
Every 6 hours, the unit will turn off and electric heater will turn on to start the defrost cycle. The controller
now displays the defrost symbol. When the evaporator coil temperature reaches 45°F or after 30 minutes of
defrost, the unit will turn on again.
1. The factory setting for temperature range is -7°Fto -1°F.
SOLID-STATE THERMOSTAT DESCRIPTIONS
*Any alteration of the original programming of this control may cause temperature and
operation issues that are not covered by warranty.
FRONT PANEL COMMANDS
REFRIGERATOR CONTOL FREEZER CONTROL
SET
To display target set point; in programming mode it selects a parameter or confirms an
operation.
(DEF)
To start a manual defrost
(UP)
To view the latest alarm occurrence; in programming mode it browses the parameter codes or
increases the display value
(DOWN)
To view the latest alarm occurrence; in programming mode it browses the parameter codes or
decreases the display value
KEY COMBINATION
+To lock & unlock the keyboard
SET + To return to the room temperature display

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1.2 Function of LEDS
MAIN FUNCTIONS
2.1 HOW TO SEE THESETPOINT
1. Push and immediately release the SET key: the display will show the set pointvalue.
2. Push and immediately release the SET key or wait for 5 seconds to display the sensor value again.
2.2 HOW TO CHANGE THE SETPOINT
1. Hold the SET key for more than 2 seconds to change the set pointvalue.
2. The value of the set point will be displayedand the LED starts blinking.
3. To change the set value pushthe or key within 10s.
4. To set a new point value, push the SET key again or wait10s.
2.3 HOW TO START A MANUALDEFFROST
Push the key for more than 2 seconds and a manual defrost willstart
2.4 HOW TO LOCK THE KEYBOARD
1. Hold the and keys for more than 3s.
2. The “POF” message will be displayed and the keyboard will be locked.At this point, it will be possible only
to see the set point or the MAX or Min temperature stored.
3. If a key is pressed more than 3s, the ”POF” message will be displayed.
2.5 HOW TO UNLOCK THE KEYBOARD
Hold the and keys together for more than 3s till the “POF” message is displayed, then press
or key to select the item to check or program.
ALARM SIGNALS
HOW TO SEE THE ALARM AND
RESET THE RECORDED ALARM
1. Push the or key to
display alarm signals.
2. When the signal is displayed, hold
the SET key until the “rst” message
is displayed, and push the SET key
again. The “rst” message will start
blinking and the normal temperature
will be displayed again.

Service and Installation Manual
MAINTENANCE
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9
The power must be turned OFF and the unit disconnected from the power source
whenever performing service, maintenance functions or cleaning the refrigerated area.
Refrigerators and Freezers
The interior and exterior can be cleaned using soap and warm water. If this isn't sufficient, try ammonia and
water or a nonabrasive liquid cleaner. When cleaning the exterior, always rub with the "grain" of the stainless
steel to avoid marring the finish.
Do not use an abrasive cleaner because it will scratch the stainless steel and plastic and can damage the
breaker strips and gaskets.
Cleaning the Condenser Coil
The condenser coil requiresregular cleaning. Recommended cleaning is every 90 days. In some
instances, you may find that there is a large amount of debris and dust or grease accumulated prior to the
90 day time frame. In these cases the condenser coil should be cleaned every 30days.
If the build-up on the coil consists of only light dust and debris, the condenser coil can be cleaned with a
simple brush. Heavier dust build-up may require a vacuum or even compressed air to blow through the
condenser coil.
If heavy grease is present, there are de-greasing agents available for refrigeration use and specifically for
the condenser coils. The condenser coil may require a spray with the de-greasing agent and then blown
through with compressed air.
Failure to maintain a clean condenser coil can initially cause high temperatures and excessive run times.
Continuous operation with dirty or clogged condenser coils can result in compressor failures. Neglecting the
condenser coil cleaning procedures will void any warranties associated with the compressor or cost to
replace the compressor.
Never use a high pressure water wash for this cleaning procedure as water can damage
the electrical components located near or at the condenser coil.
In order to maintain proper refrigeration performance, the condenser fins must be cleaned of dust, dirt and
grease regularly. It is recommended that this bedone at least every three months. If conditions are such that
the condenser is totally blocked in three months, the frequency of cleaning should be increased. Clean the
condenser with a vacuum cleaner or stiff brush. If extremely dirty, a commercial-grade condenser cleaner
may be required.
Stainless Steel Care and Cleaning
To prevent discoloration of rust on stainless steel several important steps need to be taken. First, we need to
understand the properties of stainless steel. Stainless steel contains 70-80% iron which will rust. It also
contains 12-30% chromium which forms an invisible passive film over the steels surface which acts as a
shield against corrosion. As long as the protective layer is intact, the metal is still stainless. If the film is
broken or contaminated, outside elements can begin to breakdown the steel and begin to form rust of
discoloration. Proper cleaning of stainless steel requires soft cloths or plastic scouring pads,
NEVER USE STEEL PADS, WIRE BRUSHES OR SCRAPERS!

Service and Installation Manual
MAINTENANCE
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Cleaning solutions need to be alkaline based ornon-chloride based. Any cleaner containing chlorides will
damage the protective film of the stainless steel. Chlorides are commonly found in hard water, salts, and
household and industrial cleaners. If cleaners containing chlorides are used, be sure to rinse repeatedly and
dry thoroughly.
Routine cleaning of stainless steel can be done with soap and water. Extreme stains or grease should be
cleaned with a non-abrasive cleaner and plastic scrub pad. It is always good to rub with the grain of the steel.
There are also stainless steel cleaners available which can restore and preserve the finish of the steels
protective layer.
Early signs of stainless steel breakdown can consist of small pits and cracks. If this has begun, clean
thoroughly and start to apply stainless steel cleaners in attempt to restore the passivity of the steel.
Never use an acid based cleaning solution. ！ Many food products have an acidic content
which can deteriorate the finish. Be sure to clean the stainless steel surfaces of ALL
food products.
Gasket Maintenance
Gaskets require regular cleaning to prevent mold and mildew build up and also to keep the elasticity of
the gasket. Gasket cleaning can be done with the use of warmsoapy water. Avoid full strength
cleaning products on gaskets as this can cause them to become brittle and prevent proper seals.
Never use sharp tools or knives to scrape or clean the gasket which could possibly tear the gasket and
rip the bellows.
Gaskets can easily be replaced and don’t require the use of tools or authorized service technicians. The
gaskets are "Dart" style and can be pulled out of the groove in the door and replaced by pressing the new
one back into place.
Doors/Hinges
Over time and with heavy usage, door hinges may become loose. If the door begins to sag, tighten the
screws that mount the hinge brackets to the frame of the unit. If the doors are loose or sagging, this can
cause the hinge to pull out of the frame which may damage to both the doors and the door hinges. In
some cases, a qualified service agent or maintenance personnel is required to do this.
Drain Maintenance
Each unit has a drain located inside the unit which removes the condensation from the evaporator coil and
drains the excess water into an evaporator pan. Each drain can become loose or disconnected from moving
or bumping the drain. If you notice excessive water accumulation on the inside of the unit, be sure the drain
tube is connected from the evaporator housing to the condensate evaporator drain pan. If water is collected
underneath the unit you may want to check the condensate evaporator drain tube to be sure it is still located
inside the drain pan. The leveling of the unit is important as the units are designed to drain properly when on
a level surface, if your floor is not level this can also cause drain problems. Be sure all drain lines are free of
obstructions because obstructions may cause water to back up and overflow the drain pans.

Service and Installation Manual
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11
WIRING DIAGRAM
MODEL: MSD-1DR-EC-HC
MODEL: MSD-1DF-EC-HC

Service and Installation Manual
For warranty service, call 833-474-0367
12
WIRING DIAGRAM
MODEL: MSD-1DR-EC-HC

Service and Installation Manual
For warranty service, call 833-474-0367
13
WIRING DIAGRAM
MODEL:MSD-1DF-EC-HC

Service and Installation Manual
For warranty service, call 833-474-0367
14

Service and Installation Manual
For warranty service, call 833-474-0367
15

Distributed by: KaTom Restaurant Supply, Inc
305 Katom Drive
Kodak TN 37764
Website: www.katom.com
For Warranty Service Call: 833-474-0637