ColdTech Freezer J1GF 12S User Manual

®
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.  
-3-  
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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)  
-4-  
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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  
-5-  
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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.  
-6-  
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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.  
-7-  
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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)  
-8-  
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-9-  
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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.  
-11-  
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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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