Undercounter Coolers and Freezers
Instruction Manual
Version 2
3115 Pepper Mill Court, Mississauga, ON, L5L 4X5
1889 Maryland Avenue, Niagara Falls, NY, 14305
1-800-465-0234
www.omcan.com
Table of Contents
Model TUC27F / Model TUC48F / Model TUC27R / Model TUC48R
Section
Page
Installation ---------------------------------------------------------------------------------------- 3 - 4
Safety ---------------------------------------------------------------------------------------------- 4 - 5
Maintenance ------------------------------------------------------------------------------------- 5 - 6
Troubleshooting --------------------------------------------------------------------------------- 6 - 7
French Instructions --------------------------------------------------------------------------- 8 - 12
Controller Instructions ---------------------------------------------------------------------- 13 - 15
Parts Breakdown ---------------------------------------------------------------------------- 16 - 19
Electrical Schematics ---------------------------------------------------------------------- 20 - 21
Warranty Registration ---------------------------------------------------------------------------- 23
Installation
IMPORTANT!!!PLEASE READ BEFORE INSTALLATION
•
•
•
•
•
If the unit has recently been transported. Please let unit stand still for a minimum of 24 hours before
plugging it in.
Make sure that the unit drops down to desired temperature before loading the unit with product.
Make sure that there is proper ventilation around the unit in the area where it will operate.
Make sure all accessories are installed(i.e. shelves, shelf clips, casters) before plugging the unit in.
Please read through the Operation / Owner’s Manual in its entirety.
CABINET LOCATION GUIDELINES
•
•
•
•
Install the unit on strong and leveled surfaces
- unit may make unpleasant noises if surface is uneven.
- unit may malfunction if surface is uneven.
Install the unit in an indoor, well-ventilated area
- unit performs more efficiently in a well-ventilated area
- for best performance, please maintain clearance of 3” on the back of the unit
- outdoor use may cause decreased efficiency and damage to the unit
Avoid installation in a high humidity and/or dusty area
- humidity could cause unit to rust and decrease efficiency of the unit
- dust collected on condenser coil will cause unit to malfunction. Clean the condenser at least once a month
with a brush or clean cloth
- malfunction due to dirty condenser will void warranty
Select a location away from heat and moisture-generating equipment
- high ambient temperature will cause the compressor to overwork, leading to higher energy bills and
gradual breakdown of the unit.
- malfunction due to high ambient temperature will void warranty
ELECTRICAL
Please ensure that the required voltage of the compressor is being supplied at all times. Low or high voltage
can detrimentally affect the refrigeration unit. All units should be plugged into a grounded and properly-sized
electrical outlet with appropriate overcurrent protection. Please refer to the electrical requirement on the
nameplate of the unit. Please make sure that your unit has its own dedicated outlet. Do not use an extension
cord.
TEMPERATURE CONTROLS
The temperature controls are factory-set to maintain an average temperature of 38°F in refrigeration. To
maintain a different temperature, adjust it on the temperature controller–see manual of temperature controller.
CAUTION
Setting the temperature control to the coldest setting may cause the evaporator coil to freeze and ice up. This
will eventually result in a warmer cabinet temperature.
3
Installation
LOADING PRODUCT
Shelves have been factory-installed for your convenience. Before loading shelves, please be sure that all shelf
clips are completely fastened in their correct locations. It is important that all shelves rest completely level
before stocking your cabinet with product. In order to maintain correct air flow inside the unit, please be sure
to leave two to four(2 to 4) inches of space between the back wall and stored product. Blocking the evaporator
fans will result in a warmer cabinet temperature, and ultimately compressor failure.
DEFROST SYSTEMS
Refrigerator coils are kept below the freezing point(32°F).During compressor down-time, the evaporator fan
continues to circulate air through the evaporator coil. This air circulation raises the coil temperature above the
freezing point, melting any accumulated frost. Run-off water is drained into the evaporator pan and evaporated.
Freezer coils are defrosted electrically. Automatic defrost timers are built-in to the refrigeration system and may
not be adjusted. The defrost timers automatically initiate at pre-set intervals and for a pre-determined duration.
PLEASE NOTE: Excessive door opening should be avoided in order to maintain cabinet temperature and to
eliminate the possibility of coil freeze-up.
LOADING FOOD PANS
Pizza prep units and sandwich prep units are designed to function with all pans in place, even if some pans are
to be left empty. For maximum food freshness, Fill the pans only with an amount that can be used in a specific
usage period. During non-use, please close the insulated lid cover.
Safety
Please pay close attention to the safety notices in this section. Disregarding these notices may lead to
serious injury and/or damage to the unit.
ATTENTION
•
•
•
•
•
To minimize shock and fire hazards, be sure not to overload outlet. Please designate one outlet for your
unit.
Do not use extension cords.
Do not put your hands under the unit when the unit is required to be moved.
When the unit is not in use for a long period of time, please unplug the unit from the outlet.
After unplugging the unit, wait at least 10 minutes before re-plugging it. Failure to do so could cause
damage to the compressor.
4
Safety
UNPLUG CORD
•
•
To minimize shock and fire hazards, please do not plug or unplug the cord with wet hands.
During maintenance and cleaning, please unplug the unit.
PROPER GROUNDING REQUIRED
•
To minimize shock and fire hazards, make sure that the unit is properly grounded.
PROHIBITION
•
•
•
•
•
Do not attempt to remove or repair any component unless instructed by factory.
Make sure that the unit is not resting on or against the electrical cord and plug.
To minimize personal injury, do not hang on the doors.
Do not store any flammable and explosive gas or liquids inside the unit.
Do not attempt to alter or tamper with the electrical cord.
Maintenance
CLEANING THE CONDENSER COIL
•
•
•
•
For efficient operation, it is important that the condenser surface be kept free of dust, dirt, and lint.
We recommend cleaning the condenser coil and fins at least once per month.
Clean with a commercial condenser coil cleaner, available from any kitchen equipment retailer. Brush the
condenser fins from top to bottom, not side to side.
After cleaning, straighten any bent condenser fins with a fin comb.
CLEANING THE FAN BLADE AND MOTOR
•
If necessary, clean the fan blades and motor with a soft cloth, If it is necessary to wash the fan blades,
cover the fan motor to prevent moisture damage.
CLEANING THE INTERIOR OF UNIT
•
•
•
•
When cleaning the cabinet interior ,use a solvent of warm water and mild soap.
Do not use steel wool, caustic soap, abrasive cleaners, or bleach that may damage the stainless steel
surface.
Wash door gaskets on a regular basis, preferably weekly. Simply remove door gasket from the frame of the
door, soak in warm water and soap for thirty (30) minutes, dry with soft cloth, and replace.
Check door gaskets for proper seal after they are replaced.
5
Maintenance
•
Periodically remove the shelves and pilasters from the unit and clean them with mild soap and warm water.
To remove the pilasters, first remove the shelves and shelf brackets. Then, simply lift the pilaster up and
out.
WARNING
Disconnect power cord before cleaning any parts of the unit.
Troubleshooting
Before requesting any service on your unit, please check the following points. Please note that this
guide serve only as a reference for solutions to common problems.
SYMPTOM
Compressor not running.
POSSIBLE CAUSE
• Fuse blown or circuit breaker
tripped.
• Power cord unplugged.
• Thermostat set too high.
• Cabinet in defrost cycle.
Condensing unit runs for long
periods of time.
•
•
•
Excessive amount of warm
product Placed in cabinet.
Prolonged door opening or
door ajar.
Door gasket(s) not sealing
properly.
Dirty condenser coil.
Evaporator coil iced over.
•
•
Loose part(s).
Tubing vibration.
•
•
Cabinet is noisy.
6
CORRECTIVE ACTION
• Replace fuse or reset circuit
breaker.
• Plug in power cord.
• Set thermostat to lower
Temperature.
• Wait for defrost cycle to finish.
• Allow adequate time for
Product to cool down.
• Ensure doors are closed when
not in use. Avoid opening doors
for long periods of time.
• Ensure gaskets are snapped
in Completely. Remove gasket
and Wash with soap and water.
• Check condition of gasket and
Replace if necessary.
• Clean the condenser coil.
• Unplug unit and allow coil to
• defrost. Make sure thermostat
is not set too cold. Ensure that
door gasket(s) are sealing
properly.
• Locate and tighten loose
part(s).
• Ensure tubing is free from
contact with other tubing or
components.
Troubleshooting
Cabinet Temperature Is too warm.
•
•
•
•
•
•
•
Thermostat set too warm.
Blocking air flow.
Excessive amount of warm
product Placed in cabinet.
Fuse blown or circuit breaker
tripped.
Dirty condenser coil.
Prolonged door opening or
door ajar.
Evaporator coil iced over.
•
•
•
•
•
•
Set thermostat to lower
Temperature.
Re-arrange product to allow
for Proper air flow. Make sure
there Is at least four inches of
clearance from evaporator.
Allow adequate time for
product to cool down.
Replace fuse or reset circuit
breaker.
Clean the condenser coil.
Ensure doors are closed when
not in use. Avoid opening doors
for long periods of time. (see
above)
For service call 1-800-465-0234.
7
8
9
10
11
12
Controller Instructions
Model: SF-102 Digital Temperature Controller
Dimension:77(Length)×35(Width)×60(Depth)mm
Mounting hole dimension:71(Length)×29(Width)mm
Features of Function
It is a mini-sized and integrated intelligent controller and applicable to the compressor of one HP.
The main functions are: Temperature Display/ Temperature Control/ Manual, automatic defrost by
turning off/Light Control/ Value Storing/ Self Testing /Parameter Locking
Specifications
1. Output of the outside sealed transformer:12VAC(one transformer matched with one temp. controller)
2. Temperature sensor: NTC, double sensors (for cold-room temp.& defrost control),2m(L)
Accuracy:±1℃ (±2℉)
3. Range of temperature display:—45~45℃ (-40~120℉);
4. Range of set temperature:—45~45℃ (-40~120℉);
Factory default :0℃ (32℉)
5. Temperature of the operating environment:—10~60℃ (14~140℉);
Relative Humidity:20%~90%(Non-condensing)
6. Relay output contact capacity
Compressor: N.O. 20A/250VAC(applicable to one HP Compressor,if more connected to AC contactor)
Light:
N.O. 5A/250VAC
Front Panel Operation
1 . Set temperature (compressor stop temperature) adjustment
Press
button, the set temperature is displayed.
or
button t o modify and store the displayed value , Press
P ress
button to exit the adjustment
and display the cold-room temperature.
If no more button is pressed within 10 seconds, the cold-room temperature will be displayed.
(Set temperature adjustment range: parameter E1~E2)
2. Light : Press
button, it lights; Press again, it stops.
3. Manual start/stop defrost: Press
button and hold for 6 seconds to defrost or stop defrost.
4. Display the evap. Temperature : Press
button and hold for 6 seconds, the evap. temp. is displayed,
after 10 seconds the cold-room temp. is resumed to be displayed.
5. Refrigeration LED: During refrigeration, the LED is on; When the cold room temp. is constant, the LED
is off; During the delay start, the LED flashes.
6. Defrost LED: during defrosting, the LED is on; When it stops defrosting, the LED is off. During the
delay display of defrost, the LED flashes.
7. Parameter setup
Press
button and hold for 6 seconds to enter the parameter setup mode while E1 flashes.
Press again button to select sequentially from the parameters : E1,E2,E3,E4,E5,E6,F1,F2~F4,C1.
Press
or
button, the value of parameter will be displayed and can be modified and stored.
If no more button is pressed within 10 seconds, the13
cold-room temperature will be displayed.
Parameter
Function
Set range
Default Parameter
Function
Set range
Default
(Set temperature adjustment range: parameter E1~E2)
2. Light : Press
button, it lights; Press again, it stops.
3. Manual start/stop defrost: Press
button and hold for 6 seconds to defrost or stop defrost.
4. Display the evap. Temperature : Press
button and hold for 6 seconds, the evap. temp. is displayed,
after 10 seconds the cold-room temp. is resumed to be displayed.
5. Refrigeration LED: During refrigeration, the LED is on; When the cold room temp. is constant, the LED
is off; During the delay start, the LED flashes.
6. Defrost LED: during defrosting, the LED is on; When it stops defrosting, the LED is off. During the
delay display of defrost, the LED flashes.
7. Parameter setup
Press
button and hold for 6 seconds to enter the parameter setup mode while E1 flashes.
Press again
button to select sequentially from the parameters : E1,E2,E3,E4,E5,E6,F1,F2~F4,C1.
Press
or
button, the value of parameter will be displayed and can be modified and stored.
If no more button is pressed within 10 seconds, the cold-room temperature will be displayed.
Controller Instructions
Parameter
E1
E2
E3
Function
Set range
Lower setpoint limit -45℃~Set temp.
-40℉
45℃
Higher setpoint limit Set temp.~
120℉
1~10℃
Temp. hysteresis
1~18 ℉
Default Parameter
-35℃
-31℉
20℃
68℉
4℃
7℉
E4
Comp.start delay time
0~10Min
2Min
E5
Offset on room temp.
-5~5 ℃/ ℉
0
E6
Offset on evap. Temp.
-5~5 ℃/ ℉
0
Function
Set range
Default
F1
Max. Defrost duration
1~60Min
20Min
F2
Defrost interval time
0~24Hr
6Hr
F3
Defrost termination temp.
0~20℃
32~68 ℉
8℃
46℉
F4
Display during defrost
0=Normal display
1 = Last value
before defrost
0
C1
Temperature unit
0=℃
1= ℉
0
Model: SF-104 Digital Temperature Controller
Dimension:77(Length)×35(Width)×60(Depth)mm
Mounting hole dimension:71(Length)×29(Width)mm
Features of Function
Mini-sized and integrated intelligent control and applicable to the compressor of one HP.
Temperature Display/ Temperature Control/ Manual, automatic defrost by electric heater
/Evap. Fan Control/ Value Storing/ Self Testing /Parameter Locking
Specifications
1. Output of the outside sealed transformer:AC12V(one transformer matched with one temp. controller)
2. Temperature sensor: NTC, Double sensors(for cold room temp.&defrost control),2m(L)
3. Range of temperature displayed : —45~45℃ (-40~120℉)
Accuracy: ±1℃(±2℉)
4. Range of set temperature: —45~45℃ (-40~120℉)
Factory default : 0℃(±32℉)
5. Temperature of the operating environment:—10~60℃ (14 ~140℉)
Relative Humidity:20%~90%(Non-condensing)
6. Output contact capacity:
Compressor: N.O. 20A/250VAC (applicable to 1 HP compressor, if more connected to AC contactor)
Defrost:
N.O.10A/250VAC (applicable to 1KW load, if more connected to AC contactor)
Evap. Fan: N.O. 5A/250VAC
Front Panel Operation
1 . Set temperature (compressor stop temperature) adjustement
Press
button, the set temperature is displayed.
or
button t o modify and store the displayed value , Press
P ress
button to exit the adjustment
and display the cold room temperature.
14
If no more button is pressed within 10 seconds, the cold room temperature will be displayed.
(Set temperature adjustment range: parameter E1 ~ E2)
Specifications
1. Output of the outside sealed transformer:AC12V(one transformer matched with one temp. controller)
2. Temperature sensor: NTC, Double sensors(for cold room temp.&defrost control),2m(L)
3. Range of temperature displayed : —45~45℃ (-40~120℉)
Accuracy: ±1℃(±2℉)
4. Range of set temperature: —45~45℃ (-40~120℉)
Factory default : 0℃(±32℉)
5. Temperature of the operating environment:—10~60℃ (14 ~140℉)
Relative Humidity:20%~90%(Non-condensing)
6. Output contact capacity:
Compressor: N.O. 20A/250VAC (applicable to 1 HP compressor, if more connected to AC contactor)
Defrost:
N.O.10A/250VAC (applicable to 1KW load, if more connected to AC contactor)
Evap. Fan: N.O. 5A/250VAC
Front Panel Operation
1 . Set temperature (compressor stop temperature) adjustement
Press
button, the set temperature is displayed.
or
button t o modify and store the displayed value , Press
P ress
button to exit the adjustment
and display the cold room temperature.
If no more button is pressed within 10 seconds, the cold room temperature will be displayed.
(Set temperature adjustment range: parameter E1 ~ E2)
2. Manual start/stop defrost: Press
button and hold for 6 seconds to defrost or stop defrost.
3. Display the evap. Temperature : Press
button and hold for 6 seconds, the evap. Temp. is displayed.,
after 10 seconds the cold room temp. is resumed to be displayed.
4. Refrigeration LED: During refrigeration, the LED is on; When the cold room temp. is constant, the LED
is off; During the delay start, the LED flashes.
5. Defrost LED: during defrosting, the LED is on; When it stops defrosting, the LED is off. During the
delay display of defrost, the LED flashes.
6. Parameter setup
Press
button and hold for 6 seconds to enter the parameter setup mode while E1 flashes.
Press again
button to select sequentially from the parameters : E1,E2,E3,E4,E5,E6,F1,F2~F5,C1.
Press
or
button, the value of parameter will be displayed and can be modified and stored.
If no more button is pressed within 10 seconds, the cold room temperature will be displayed.
Controller Instructions
Parameter
E1
E2
E3
Function
Set range
Lower setpoint limit -45℃~Set temp.
-40℉
45℃
Higher setpoint limit Set temp.~120℉
1~10℃
Temp. Hysteresis
1~18 ℉
Default Parameter
-35℃
-31℉
20℃
68℉
4℃
7℉
E4
Comp.start delay time
0~10Min
2Min
E5
Offset on room temp.
-5~5℃ / ℉
0
E6
Offset on evap. Temp.
-5~5 ℃/ ℉
0
C1
Temperature unit
0=℃
1= ℉
0
Function
Set range
Default
F1
Max. Defrost duration
1~60Min
20Min
F2
Defrost interval time
0~24Hr
6Hr
8℃
46℉
0
F3
Defrost termination temp.
0~20℃
32~68 ℉
F4
Display during defrost
0=Normal display
1 = Last value
before defrost
F5
Fan operating function 0=Parallel with comp.
1 = Continuous running
except defrost
0
7. The factory default resumption: press
button for 1 second and then press button simultaneously
for 6 seconds, the indicator flashes , all parameters will be resumed as same as factory defaults. After
10 seconds, it returns to the normal operation.
15
Parts Breakdown
Model TUC27F 25282
Model TUC48F 25283
16
Parts Breakdown
Model TUC27F 25282
Model TUC48F 25283
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Description
cabinet
top board
door
door seal
axile bush
spring hinge
right down hinge
right up hinge
feet install panel
feet install panel
feet install panel
castor
castor
controller install panel
temperature controller
power switch
back bracket
track of cooling unit panel
inside water tray
fan cover fastener
No.
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
17
Description
fan cover fastener
cooling unit install panel
condenser
condenser fan
filter base
filter
compressor
outside water tray
diamond back cover
evaporator fan cover
K clip hanging bar
K clip hanging bar
K clip
shelf
evaporator
evaporator fan install panel
evaporator fan
wind guard
defrost heater
drain hole heater
Parts Breakdown
Model TUC27R 27202
Model TUC48R 27203
18
Parts Breakdown
Model TUC27R 27202
Model TUC48R 27203
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Description
cabinet
top board
door
door seal
axile bush
spring hinge
right down hinge
right up hinge
feet install panel
feet install panel
feet install panel
castor
castor
controller install panel
temperature controller
power switch
back bracket
track of cooling unit panel
inside water tray
No.
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
19
Description
fan cover fastener
fan cover fastener
cooling unit install panel
condenser
condenser fan
filter base
filter
compressor
outside water tray
diamond back cover
evaporator fan cover
K clip hanging bar
K clip hanging bar
K clip
shelf
evaporator
evaporator fan install panel
evaporator fan
Electrical Schematics
KM
M
KM
KM
KM
M
M
20
Electrical Schematics
21
22
Warranty Registration
Thank you for purchasing an Omcan product. To register your warranty for this product, complete the information below, tear off the card at
the perforation and then send to the address specified below. You can also register online by visiting:
www.omcan.com/warrantyregistration.html
For mailing in Canada
For mailing in the US
OMCAN INC.
OMCAN
PRODUCT WARRANTY REGISTRATION
3115 Pepper Mill Court,
Mississauga, Ontario
PRODUCT WARRANTY REGISTRATION
1889 Maryland Avenue,
Niagara Falls, New York
Canada, L5L 4X5
USA, 14305

Purchaser’s Information
Name:
Company Name:
Address:
Telephone:
City:
Province or State:
Postal or Zip:
Country:
Type of Company:
Dealer from which Purchased:
Dealer City:
Dealer Province or State:
Restaurant
Bakery
Deli
Butcher
Supermarket
Caterer
Institution (specify):
Invoice:
Model Name:
Email Address:
Other (specify):
Model Number:
Serial Number:
Machine Description:
Date of Purchase (MM/DD/YYYY):
Date of Installation (MM/DD/YYYY):
Thank you for choosing Omcan
23
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