®
COMMERCIAL MERCHANDISER FREEZER
OWNER'S MANUAL
Models: J1GF-12S, J1GF-20S, J2GF-40S,
J2GRF-40DT, J3GF-61S, J3GRF-61DT
This manual contains important information regarding your
new ColdTech unit. Please read the manual thoroughly prior
to equipment set-up, operation and maintenance.
Failure to comply with regular maintenance guidelines outlined
in this manual may void warranty. MUST READ!!!
1575 Zephyr Avenue
Hayward, CA 94544
(800) 314-4477 (510) 477-3400
f: (510) 477-3413
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INSTALLATION
IMPORTANT!!! PLEASE READ BEFORE INSTALLATION
1) If the unit has recently been transported please let unit stand still for a minimum of 24 hours before
plugging it in.
2) Make sure that the unit drops down to desired temperature before loading the unit with product.
3) Make sure that there is proper ventilation around the unit in the area where it will operate.
4) Make sure all accessories are installed (i.e. shelves, shelf clips, casters) before plugging the unit in.
5) Please read through the Operation / Owners Manual in its entirety. Lack of maintenance or misuse of
the unit will VOID warranty. Please fill out the registration card and send it to the factory.
CABINET LOCATION GUIDELINES
1) Install the unit on strong and leveled surfaces
-unit may make unpleasant noises if surface is uneven
-unit may malfunction if surface is uneven
2) 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 4" on the back of the unit
-outdoor use may cause decreased efficiency and damage to the unit
3) Avoid installation in a high humidity and/or dusty area
-humidity could cause unit to rust and decrease effeciency 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
4) Select a location away from heat and moisture-generating equipment
-high ambient temperatures 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 and thereby void its warranty.
All units should be plugged into a grounded and properly-sized electrical outlet with appropriate
overcurrent protection. Please refer to the electrical requirements on the unit serial tag located inside the
unit. Please make sure that your unit has its own dedicated outlet. Do not use an extension cord.
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UNIT LEG AND CASTER (optional) INSTALLATION
Make sure to follow diagrams to properly install the units adjustable legs or optional casters!!!
1) Install the provided nut to the leg, to the desired height.
NUT
(for optional caster installation, start with step #2)
Skipping step #1 might bend support rails and make the unit
unstable. This will void any or all warranties.
2) Locate the pre-drilled holes in the support rails, as outlined by
Desired
diagram A, found on the bottom of the unit. (for optional caster
Height
installation, skip to step #4)
3) Put the leg (with nut already installed from step #1) into the
pre-drilled holes. Secure the top of the leg by installing another
LEG
nut. See diagram A.
If a nut is already welded onto the support rails, then you do not need to
install another nut. Simply screw the leg (with the nut installed onto the leg
previously in step 1) into the welded nut on the support rail.
4) For optional caster installation, either screw the caster bolt into the welded nut on the
support rails, or, put the caster bolts through the pre-drilled holes and secure the top of the
caster bolt by installing a nut. Make sure that caster nut is very tight.
5) Make sure to properly install all legs. All units require 4 legs. (J3 models require 6 legs)
Diagram A (view of bottom compressor area, from the back)
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LIGHT SWITCH OPERATION AND ACCESSING THE TEMPERATURE CONTROL
Warning!!! Adjusting the parameters of the temperature control, if done improperly, may cause
malfunction of the unit and may void warranty. Consult ColdTech service department before
adjusting the temperature control parameters.
ON
LIGHT SWITCH OPERATION
1) To turn on the light, simply move the toggle switch to "I"
OFF
2) To turn off the light, simply move the toggle switch to "O"
It is recommended that you turn off the light, whenever possible. This will allow the unit to operate more
efficiently and reduce your electricity costs.
ACCESSING THE TEMPERATURE CONTROL
The temperature control is mounted behind the bottom kick grill, in front of the unit. It is mounted behind
a clear plastic cover, so that you can see the operating temperature, but will not allow anyone to change
the parameters of the control without your knowledge (tamper-proof).
To access the temperature control:
1) Locate the screws that attach the bottom kick grill to the unit. They are found inside of the 4 holes
located on both sides of the bottom kick grill.
2) Remove the screws using a Phillips Screwdriver.
3) Remove the bottom kick grill. Beware the wires for the light switch. Do NOT disconnect the wires for
the light switch.
4) Make adjustments to the control, using the directions that start on page 9. CONSULT COLDTECH
SERVICE DEPARTMENT BEFORE MAKING ANY CHANGES.
Temperature Contol
-10
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REGULAR MAINTENANCE
CLEANING THE CONDENSER COIL
For efficient operation, it is important that the condenser surface be kept free of dust, dirt, and lint.
ColdTech recommends 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 BLADES 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.
Periodically remove the shelves and pilasters from the unit and clean them with mild soap and warm
water. To remove the pilasters, use a Phillips screwdriver to unscrew the pilasters.
WAR NING
Disconnect power cord before cleaning any parts of the unit.
TROUBLE SHOOTING
Before requesting any service on your ColdTech unit, please check the following points. Service calls
resulting from lack of maintenance or misuse is not covered under warranty and also may void warranty.
Please note that this guide serves only as a reference for solutions to common problems.
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SYMPTOM
Compressor not running.
POSSIBLE CAUSE
Fuse blown or circuit breaker tripped.
CORRECTIVE ACTION
Replace fuse or reset circuit
breaker.
Power cord unplugged.
Thermostat set too high.
Plug in power cord.
Set thermostat to lower
temperature.
Cabinet in defrost cycle.
Wait for defrost cycle to finish.
Condensing unit runs for
long periods of time.
Excessive amount of warm product
placed in cabinet.
Prolonged door opening or door ajar.
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.
Door gasket(s) not sealing properly.
Dirty condenser coil.
Evaporator coil iced over.
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.
Cabinet temperature is
too warm.
Thermostat set too warm.
Blocking air flow.
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.
Excessive amount of warm product
placed in cabinet.
Fuse blown or circuit breaker tripped.
Replace fuse or reset circuit
breaker.
Dirty condenser coil.
Prolonged door opening or door ajar.
Clean the condenser coil.
Ensure doors are closed when
not in use. Avoid opening
doors for long periods of time.
(see above)
Evaporator coil iced over.
Loose part(s).
Cabinet is noisy.
Locate and tighten loose
part(s).
Tubing vibration.
Ensure tubing is free from
contact with other tubing or
components.
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SAFETY / WARNING
Please pay close attention the the safety notices in this section. Disregarding
these notices may lead to serious injury and/or damage to the unit.
KEY
!
ATTENTION
UNPLUG CORD
PROPER GROUNDING REQUIRED
PROHIBITED
1) To minimize shock and fire hazards, be sure not to overload outlet. Please designate
one outlet for your unit.
!
2) Do not use extension cords.
3) Do not put your hands under the unit when the unit is required to be moved.
4) When the unit is not in use for a long period of time, please unplug the unit from the
outlet.
5) After unplugging the unit, wait at least 10 minutes before re-plugging it. Failure to do
so could cause damage to the compressor.
1) To minimize shock and fire hazards, please do not plug or unplug the cord with wet
hands.
2) During maintenance and cleaning, please unplug the unit.
1) To minimize shock and fire hazards, make sure that the unit is properly grounded.
1) Do not attempt to remove or repair any component unless instructed by factory.
2) Make sure that the unit is not resting on or against the electrical cord and plug.
3) To minimize personal injury, do not hang on the doors.
4) Do not store any flammable and explosive gas or liquids inside the unit.
5) Do not attempt to alter or tamper with the electrical cord.
6) Do not set the desired temperature out of the recommended temperature range:
(Ref: 32 F - 55 F
Fre: -15 F - 20 F)
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-10-
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Applicable to Models: J1GF-12S, J1GF-20S, J2GF-40S,
J2GRF-40DT (freezer only), J3GF-61S, J3GRF-61DT (freezer only)
ColdTech® Freezer Merchandiser Settings
Temperature set to -10 F
Parameter Function
Set Range
-40 F ~ set temp
set temp ~ 120 F
1 ~ 18 F
0 ~ 10 min.
-5 ~ 5 F
-5 ~ 5 F
1 ~ 60 min.
0 ~ 24 hr.
32 ~ 68 F
Default
-20 F
20 F
E1
E2
E3
E4
E5
E6
F1
F2
F3
Lower Setpoint Limit
Higher Setpoint Limit
Hysteresis, temp variance
Comp. start delay time
Offset on room temp
Offset on evap temp
Max. defrost duration
Defrost interval time
Defrost termination temp
10 F
3 min.
0 F
0 F
40 min.
8 hr.
55 F
Applicable to Models: J2GRF-40DT (refrigerator only),
J3GRF-61DT (refrigerator only)
ColdTech® Refrigerator Settings
Temperature set to 37 F
Parameter Function
Set Range
-40 F ~ set temp
set temp ~ 120 F
1 ~ 18 F
0 ~ 10 min.
-5 ~ 5 F
-5 ~ 5 F
1 ~ 60 min.
0 ~ 24 hr.
32 ~ 68 F
Default
36 F
45 F
10 F
2 min.
0 F
0 F
N/A
0
N/A
E1
E2
E3
E4
E5
E6
F1
F2
F3
Lower Setpoint Limit
Higher Setpoint Limit
Hysteresis, temp. variance
Comp. start delay time
Offset on room temp
Offset on evap temp
Max. defrost duration
Defrost interval time
Defrost termination temp
Key
F = Farenheit (degrees)
min. = minutes
hr. = hours
temp = temperature
max = maximum
N/A = not applicable
Warning:
Do not change the default settings of your ColdTech unit without consulting
a qualified service technician or the ColdTech service department.
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The New Symbol of Innovation™
MEMO
RETAIN THIS MANUAL FOR FUTURE REFERENCE
Please read the entire manual carefully before installation and operation. If certain recommended
procedures are not followed, warranty claims will be denied.
Notice: ColdTech reserves the right to make changes in design and specifications without prior notice.
MODEL #: _______________________________
SERIAL #: _______________________________
PURCHASE DATE #: _______________________
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