Motak MGD-1DR-12-HC User manual

Glass Door Merchandiser
Refrigerator and Freezer
Service, Installation and Care Manual
Please read this manual completely efore 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
For warranty service, call 833-474-0367 2
COMMECIAL REFRIGERATOR SAFETY
Y ur safety and the safety f thers are very imp rtant.
We have provided many important safety messages in this man al and on yo r appliance. Always read and
obey all safety messages.
Our pr duct instructi ns will be upl aded n ur c mpany fficial website.
This is the Safety Alert Symbol. This symbol alerts yo to potential hazards that can
kill or inj re yo and others. All safety messages will follow the Safety Alert Symbol
and either the words” DANGER”, “WARNING” or “CAUTION”.
Danger means that fail re to heed this safety
statement may res lt in severe personal inj ry or
death.
Warning means that fail re to heed this safety
statement may res lt in extensive prod ct
damage, serio s personal inj ry, or death.
Ca tion means that fail re to heed this safety
statement may res lt in minor or moderate
personal inj ry, or property or eq ipment damage.
All safety messages will alert yo to what the potential hazard is, tell yo how to red ce the chance of inj ry,
and let yo know what can happen if the instr ctions are not followed.
If the s pply cord is damaged, it m st be replaced by the man fact rer, its service agent or similarly
q alified persons in order to avoid a hazard.
This appliance is not intended for se by persons (incl ding children) with red ced physical, sensory or
mental capabilities, or lack of experience and knowledge, nless they have been given s pervision or
instr ction concerning se of the appliance by a person responsible for their safety.
Children sho ld be s pervised to ens re that they do not play with the appliance.
This appliance can be sed by children aged from 8 years and above and persons with red ced physical
sensory or mental capabilities or lack of experience and knowledge if they have been given s pervision or
instr ction concerning se of the appliance in a safe way and nderstand the hazards involved. Children
shall not play with the appliance. Cleaning and ser maintenance shall not be made by children witho t
s pervision.
Keep the appliance and its cord o t of reach of children less than 8 years.
Do not store explosive s bstances s ch as aerosol cans with a flammable propellant in this appliance.
The appliance se flammable ins lation blowing gas C5H10, disposal of the appliance shall in accordance

Service and Installation Manual
For warranty service, call 833-474-0367 3
with the reg lations of local a thorities.
The key for appliance electric box sho ld be safe kept by q alified persons in order to avoid a hazard
WARNING: Keep ventilation openings, in the appliance enclos re or in the b ilt-in str ct re, clear of
obstr ction.
WARNING: Do not se mechanical devices or other means to accelerate the defrosting process, other than
those recommended by the man fact rer.
WARNING: Do not damage the refrigerant circ it.
WARNING: Do not se electrical appliances inside the food storage compartments of the appliance, nless
they are of the type recommended by the man fact rer.
Handling, moving, and se of the refrigerator or freezer to avoid either damaging the refrigerant t bing, or
increasing the risk of a leak
L’opération, le mo vement et l’ tilisation d réfrigérant o le congélate r doivent éviter les dommages d
t ya réfrigérant o le riq e de la f ite.
Ca tion – Risk of Fire or Explosion d e to Flammable Refrigerant Used. Follow Handling
Instr ctions Caref lly in Compliance with U.S. Government Reg lations.
Component parts shall be replaced with like components and that servicing shall be done by factory
a thorized service personnel, so as to minimize the risk of possible ignition d e 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 risq e d’all mage à ca se des parts incorrects o des
opérations impropres.
CAUTION – Risk Of Fire Or Explosion D e To P nct re Of Refrigerant T bing; Follow Handling Instr ctions
Caref lly. Flammable Refrigerant Used
DANGER: Risk of child entrapment. Before yo throw away yo r 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 7 % 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 e cessive frost accumulation with the equipment will occur that are not covered by the
warranty.

Service and Installation Manual
For warranty service, call 833-474-0367 4
CONTENTS
All rights reserved. Repr ducti n with ut written permissi n is pr hibited.
RECEIVING & INSPECTING EQUIPMENT..4
SPECIFICATIONS..5
INSTALLATION....6
OPERATION....7
MAINTENANCE..9
CIRCUIT DIAGRAM..12
STANDARD WARRANTIES..27
SERIAL NUMBER INFORMATION
Th s rial numb r of all s lf-contain d r frig rators and fr z rs is locat d insid th unit on th l ft hand
sid n ar th top on th wall.
Always hav th s rial numb r of your unit availabl wh n calling for parts or s rvic .
This manual cov rs standard units only. If you hav a custom unit, consult th custom r s rvic d partm nt
at th numb r list d on th last pag .
RECEIVING AND INSPECTING THE EQUIPMENT
Ev n though most quipm nt is shipp d crat d, car should b tak n during unloading so th quipm nt is not
damag d whil b ing mov d into th building.
1. Visually insp ct th xt rior of th packag and skid or contain r. Any damag should b not d and r port d
to th d liv ring carri r imm diat ly.
2. If damag d, op n and insp ct th cont nts with th carri r.
3. In th v nt that th xt rior is not damag d, y t upon op ning, th r is conc al d damag to th quipm nt,
notify th carri r. Notification should b mad v rbally as w ll as in writt n form.
4. R qu st an insp ction by th shipping company of th damag d quipm nt. This should b don within 10
days from r c ipt of th quipm nt.
5. B c rtain to ch ck th compr ssor compartm nt housing and visually insp ct th r frig ration packag . B
sur lin s ar s cur and bas is still intact.
6. Fr ight carri rs can supply th n c ssary damag forms upon r qu st.
7. R tain all crating mat rial until an insp ction has b n mad or waiv d.

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SPECIFICATION
Y-X: 208V~230V/60Hz
W-Y: 115V/60HZ
SWING DOOR REFRIGERATORS
MODEL# V/ z/Ph AMPS P Shelf Size
Max Weight
Load per
Shelf
Max Weight
Load per
Model
BTU
C ARGE
OZ
S IP
WEIG T
LBS
NEMA
PLUG
MGD-1DR-12-HC 115/60/1 1/5 19.8 x 18.0 5 lbs 8 7 lbs 1670 .0 254 5-15P
MGD-1DR-16-HC 115/60/1 1/5 19.8 x 18.0 5 lbs 815 lbs 1670 .0 282 5-15P
MGD-1DR-2 -HC 115/60/1 1/5 21.6 x 24. 5 lbs 776 lbs 1670 .0 1 5-15P
MGD-1DR-26-HC 115/60/1 1/5 2 .1 x26.1 60 lbs 765 lbs 1670 .0 45 5-15P
MGD-2DR- 6-HC 115/60/1 4.5 1/4 2 .6 x 24. 40 lbs 712 lbs 2 80 .7 75 5-15P
MGD-2DR-48-HC 115/60/1 4.5 1/4 21.6 x 24. 57 lbs 610 lbs 2 80 .7 540 5-15P
MGD- DR-70-HC 115/60/1 7.5 1/2 26.0 x 24. 62 lbs 967 lbs 200 5.29 741 5-15P
SLIDE DOOR REFRIGERATORS
MODEL# V/ z/Ph AMPS P Shelf Size
Max Weight
Load per
Shelf
Max Weight
Load per
Model
BTU
C ARGE
OZ
S IP
WEIG T
LBS
NEMA
PLUG
MGD-2DR-47-HC 115/60/1 4.5 1/4 21.6 x 24. 57 lbs 610 lbs 2 80 .7 540 5-15P
SWING DOOR FREEZERS
MODEL# V/ z/Ph AMPS P Shelf Size
Max Weight
Load per
Shelf
Max Weight
Load per
Model
BTU
C ARGE
OZ
S IP
WEIG T
LBS
NEMA
PLUG
MGD-1DF-12-HC 115/60/1 5 1/2 19.8 x 18.0 5 lbs 815 lbs 2000 .7 258 5-15P
MGD-1DF-16-HC 115/60/1 5 1/2 19.8 x 18.0 5 lbs 809 lbs 2000 .7 289 5-15P
MGD-1DF-2 -HC 115/60/1 8 1/2 21.6 x 24. 5 lbs 756 lbs 2000 .88 5 5-15P
MGD-1DF-26-HC 115/60/1 8 1/2 2 .1 x26.1 60 lbs 745 lbs 2000 .88 60 5-15P
MGD-2DF- 6-HC 115/60/1 9 1 2 .6 x 24. 40 lbs 690 lbs 650 5.29 68 5-15P
MGD-2DF-48-HC 115/60/1 9 1 21.6 x 24. 57 lbs 456 lbs 650 5.29 567 5-15P
MGD-2DF-48-DV-HC
1115/208
~2 0/60/ 6.5 1 21.6 x 24.
57 lbs 456 lbs 650 5.29 567 L14-20P
MGD- DF-70-DV-HC
115/208~
2 0/60/1
9 1-1/4 26.0 x 24. 62 lbs 881 lbs 4500 5.29 829 L14-20P

Service and Installation Manual
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INSTALLATION
L cati n
Units represented in this manual are intended for indoor use 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 refrigerator so full that air cannot circulate. The refrigerated air is discharged at the rear of the
unit. It is important to allow for proper air flow from the 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. Prevent obstruction by locating large boxes and tall stacks of product to the bottom of the cabinet.
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. Should it become necessary to lay the unit on its side or back for any reason, allow at least
24 hours before start-up so as to allow compressor oil to flow back to the sump. Failure to meet this
requirement can cause compressor failure and unit damage.
Leveling
A level cabinet looks better and will perform better because the doors will line up with the frames properly,
the cabinet will not be subject to undue strain and the contents of the cabinet will not move around on the
shelves. 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
Models are supplied on 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.
Standard warranties will be v ided due t impr per installati n.
Electrical c nnecti n
Refer to the amperage data on page 3, the serial tag, your local code or the National Electrical Code to be
sure the unit is connected to the proper power source. A protected circuit of the correct voltage and
amperage must be run for connection of the line cord, or permanent connection to the unit.
The ON/OFF switch must be turned t OFF and the unit be disc nnected fr m the p wer
s urce whenever perf rming service, maintenance functi ns r cleaning the
refrigerated area.
NOTE
DANGER
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 wor s 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 bac of the unit. Failure to do so may cause compressor and other vital component
failure, and will void the equipment’s warranty.

Service and Installation Manual
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OPERATION
D n t thr w items int the st rage area. Failure t heed these
rec mmendati ns c uld result in damage t the interi r f the cabinet.
Refrigerated cycle
Refrigerat rs: During the refrigeration cycle, the evaporator fans wilt run continuously even when one or
more doors are open. The door switch will activate the lights when opened.
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. Anti-condensation heaters on door frames work in conjunction with the compressor.
3. 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 also keep running during when door is open but cycle off during a defrost period. The door switch
will activate the lights when opened.
1. 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 coil temperature reaches 45°F or after 20 minutes
of defrost, the unit will turn on again.
2. Anti-condensation heaters on door frames work in conjunction with the compressor.
3. The factory setting for temperature range is -7°F to -3°F
SOLID-STATE THERMOSTAT DESCRIPTIONS
1. FRONT PANEL COMMANDS
1.1 KEY FUNCTION
To display target set point; in programming mode it selects a parameter or confirm an
operation.
To start a manual defrost
To see the last temperature alarm happened; in programming mode it bro
wses the parameter
codes or increases the display value
To see the last temperature alarm happened; in programming mode it browses the parameter
codes or decreases the display value
KEY COMBINATION
To lock unlock the keyboard
To enter in programming mode
To return to the room temperature display
CAUTION
Light Switch:
A light switch is located next to the on/off switch on the front of the bottom panel.
To switch the instrument off.
*Any alte ation of the o iginal p og amming of this cont ol may cause tempe atu e and
ope ation issues that a e not cove ed by wa anty.

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1.2 LED – Report Status
2. MAIN FUNCTIONS
2.1 HOW TO SEE THE SETPOINT
a. Push and immediately release the SET key: the display will show the set point value;
b. 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
a. Push the SET key for more than 2 seconds to change the set point value;
b. The value of the set point will be displayed and the LED starts blinking;
c. To change the set value push the or key within 10s;
d. To memory the new set point value and push the SET key again or wait 10s.
2.3 HOW TO START A MANUAL DEFFROST
Push the key for more than 2 seconds and a manual defrost will start
OPERATION
2.4 HOW TO LOCK THE KEYBOARD
a. Press and hold the and keys for more than 3s
b. 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
c. If a key is pressed more than 3s the ”POF” message will be displayed.
2.5 HOW TO UNLOCK THE KEYBOARD
Press and hold the and keys together for more than 3s, the “Pon” message display
3. ALARM SIGNALS
HOW TO SEE THE ALARM AND RESET
THE RECORDED ALARM
a. Push the or key, the alarm signal will
display
b. When the signal is displayed, press/hold
the SET key until the “rst” message is
displayed, and push the SET key again, the
“rst” message start blinking and the normal
temperature will display again.
LED
MODE
SIGNIFICATO
On
Compressor enabled
Flashing
Anti-short cycle delay enabled (AC parameter)
On
Defrost in progress
Flashing
Dripping in progress
On
Fans output enabled
Flashing
Fans delay after defrost
On
Measurement unit
Flashing
Programming mode
On
Measurement unit
Flashing
Programming mode

Service and Installation Manual
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MAINTENANCE
The p wer switch must be OFF and the unit disc nnected fr m the p wer s urce
whenever perf rming service, maintenance functi ns r cleaning the refrigerated area.
Refrigerat rs 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 C ndenser C il
The condenser coil requires regular cleaning, recommended 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 30 days.
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 f r this cleaning pr cedure as water can damage
the electrical c mp nents l cated near r at the c ndenser c il.
In order to maintain proper refrigeration performance, the condenser fins must be cleaned of dust, dirt and
grease regularly. It is recommended that this be done 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 commercially available 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!
DANGER
DANGER
DANGER

Service and Installation Manual
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MAINTENANCE
Cleaning solutions need to be alkaline based or non-chloride cleaners. Any cleaner containing chlorides
will damage the protective film of the stainless steel. Chlorides are also 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 upon completion.
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 s luti n！
！！
！Many f d pr ducts have an acidic c ntent
which can deteri rate the finish. Be sure t clean the stainless steel surfaces f ALL
f d pr ducts. C mm n items include, t mat es, peppers and ther vegetables.
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 warm soapy water. Avoid full strength
cleaning products on gaskets as this can cause them to become brittle and prevent proper seals. Also,
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 persons. The
gaskets are "Dart" style and can be pulled out of the grove in the door and new gaskets can be "pressed"
back into place.
D rs/Hinges
Over time and with heavy use doors the hinges may become loose. If it is noticed that the door is
beginning to sag, it may become necessary to 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 both the doors and the door hinges. In some cases this can require qualified service
agents or maintenance personnel.
Drain Maintenance
Each unit has a drain located inside the unit which removes the condensation from the evaporator coil and
evaporates it at an external condensate 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 typically food product is found blocking drain lines causing water to back
up and overflow the drain pans.
CAUTION

Service and Installation Manual
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MAINTENANCE
Swing D r Replacement and Adjustment
1. Open the bottom shroud and support the door weight. Loosen bottom hinge’s screws and remove the
door
2. Prepare new door. Insert door top pin into top hinge. Insert the bottom hinge onto the door’s bottom
hinge and secure to the frame
3. Allow the door to freely swing, make sure it swings close by itself with no restriction
4. Plug the unit in and make sure the lock is in the right location. Exercise the lock to ensure the cam
engagement
5. If not, adjust the door until proper lock cam engagement
Slide D r Replacement and Adjustment
1. Remove the hook of counterweight on the top of the door
2. Lift the door up until its bottom edge over the channel. Slide it out and down away from the cabinet.
3. Reverse the procedures to install new door
Rem ve the b tt m shr ud
1. Open the door/s.
2. Loosen and remove the top screws
3. Slide the shroud up and out of their keyhole shape slots
Light Bulb Replacement
1. Top display light bulb replacement: Loose the screws in the bottom of top shroud, swing the top shroud
up until it is hold by the top of the cabinet, now light bulb can be replaced;
2. Interior light bulb replacement: Open door and remove the cover. Twist and remove the bulb.

Service and Installation Manual
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CIRCUIT DIAGRAM
MODEL: MGD-1DR-12-HC/MGD-1DR-16-HC/MGD-1DR-23-HC
MODEL: MGD-1DR-26-HC

Service and Installation Manual
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CIRCUIT
DIAGRAM
MODEL: MGD-2DR-36-HC/MGD-2DR-48-HC
MODEL: MGD-2DR-47-HC

Service and Installation Manual
For warranty service, call 833-474-0367 14
CIRCUIT DIAGRAM
MODEL: MGD-3DR-70-HC
MODEL: MGD-1DF-12-HC/MGD-1DF-16-HC/MGD-1DF-23-HC

Service and Installation Manual
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CIRCUIT DIAGRAM
MODEL: MGD-1DF-26-HC
MODEL: MGD-2DF-36-HC / MGD-2DF-48-HC

Service and Installation Manual
For warranty service, call 833-474-0367 16
CIRCUIT DIAGRAM
MODEL: MGD-2DF-48-DV-HC
MODEL: MGD-3DF-72-DV-HC

Service and Installation Manual
For warranty service, call 833-474-0367 17
WIRING DIAGRAM
MODEL:MGD-1DR-12-HC/MGD-1DR-16-HC/MGD-1DR-23-HC

Service and Installation Manual
For warranty service, call 833-474-0367 18
WIRING DIAGRAM
MODEL: MGD-1DR-26-HC

Service and Installation Manual
For warranty service, call 833-474-0367 19
WIRING DIAGRAM
MODEL: MGD-2DR-36-HC/MGD-2DR-48-HC

Service and Installation Manual
For warranty service, call 833-474-0367 20
WIRING DIAGRAM
MODEL:MGD-2DR-47-HC