true STA1RPT-1G-1G-HC Refrigerator Installation Guide
- June 4, 2024
- TRUE
Table of Contents
STA1RPT-1G-1G-HC Refrigerator
TRUE MANUFACTURING CO., INC.
CONGRATULATIONS! You have just purchased the finest commercial refrigerator available. You can expect many years of trouble-free operation.
TABLE OF CONTENTS
SAFETY INFORMATION
Safety Precautions
1
Proper Disposal, Connecting Electricity, & Adapter Plugs
2
INSTALLATION
Ownership & Uncrating
3
How to Connect to Electricity & Wire Gauge Chart
4
Locating and Leveling
5
Sealing Cabinet to the Floor
5
Ramp Installation
6
SETUP
Standard Accessories
7
OPERATION
Startup
8
Mechanical Temperature Controls Sequence of Operation
9
Electronic Temperature Controls Sequence of Operation
15
MAINTENANCE, CARE, CLEANING
Cleaning Condenser Coil
24
Important Warranty Information
25
Stainless Steel Equipment Care and Cleaning
26
General Maintenance
27
WARRANTY
Warranty
28
INSTALLATION MANUAL
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
STR1RRI89-1S
STR2RRT-2G-2S
INSTALLATION MANUAL
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
TRUE MANUFACTURING CO., INC.
2001 East Terra Lane · O’Fallon, Missouri 63366-4434 (636)-240-2400 · FAX
(636)-272-2408 · INT’L FAX (636)272-7546 · (800)-325-6152 Parts Department
(800)-424-TRUE · Parts Department FAX# (636)-272-9471 Web: www.truemfg.com
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
NOTICE TO CUSTOMER
Loss or spoilage of products in your refrigerator/ freezer is not covered by
warranty. In addition to following recommended installation procedures you
must run the refrigerator/freezer 24 hours prior to usage.
WWW.TRUEMFG.COM
SAFETY INFORMATION
How to Maintain Your True Refrigerator to Receive the Most Efficient and
Successful Operation. You have selected one of the finest commercial
refrigeration units made. It is manufactured under strict quality controls
with only the best quality materials available.Your TRUE cooler when properly
maintained will give you many years of trouble-free service.
WARNING: Use this appliance for its intended purpose as described in this Owner Manual.
TO LOCATE REFRIGERANT TYPE, SEE SERIAL LABEL INSIDE CABINET. This cabinet may contain fluorinated greenhouse gas covered by the Kyoto Protocol (please refer to cabinet’s inner label for type and volume, GWP of 134a= 1,300. R404a= 3,800).
FOR HYDROCARBON REFRIGERATION ONLY (R-290) SEE BELOW:
· DANGER – Risk of fire or explosion. Flammable refrigerant used. Do not use
mechanical devices to defrost refrigerator. Do not puncture refrigerant
tubing.
· DANGER – Risk of fire or explosion. Flammable refrigerant used. To be
repaired only by trained service personnel. Do not puncture refrigerant
tubing.
· CAUTION – 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.
· CAUTION – Risk of fire or explosion. Dispose of properly in accordance with
federal or local regulations. Flammable refrigerant used.
· CAUTION – Risk of fire or explosion due to puncture of refrigerant tubing;
follow handling instructions carefully. Flammable refrigerant used.
· CAUTION – Keep clear of obstruction all ventilation openings in the
appliance enclosure or in the structure for building-in.
SAFETY PRECAUTIONS
When using electrical appliances, basic safety precautions should be followed,
including the following:
· This unit must be properly installed and located in accordance with the
Installation Instructions before it is used.
· Do not allow children to climb, stand or hang on the shelves in the
refrigerator. They could damage the unit and seriously injure themselves.
· Do not touch the cold surfaces in the freezer compartment when hands are
damp or wet. Skin may stick to these extremely cold surfaces.
· Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance. Do not store explosive substances
such as aerosol cans with a flammable propellant in this appliance.
· Keep fingers out of the “pinch point” areas; clearances between the doors
and between the doors and cabinet are necessarily small; be careful closing
doors when children are in the area.
· Unplug the refrigerator before cleaning and making repairs.
· Setting temperature controls to the 0 position does not remove power to the
light circuit, perimeter heaters, or evaporator fans.
· While cleaning condenser coil lift and hold top louvered grill. Any
servicing to condensing unit remove top louvered grill.
NOTE: We strongly recommend that any servicing be preformed by a qualified
technician.
1
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
DANGER!
RISK OF CHILD ENTRAPMENT
PROPER DISPOSAL OF THE REFRIGERATOR
Child entrapment and suffocation are not problems of the past. Junked or
abandoned refrigerators are still dangerous… even if they will sit for “just a
few days.” If you are getting rid of your old refrigerator, please follow the
instructions below to help prevent accidents.
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.
APPLIANCE DISPOSAL When recycling appliance please make sure that the
refrigerants are handled according to local and national codes, requirements
and regulations.
REFRIGERANT DISPOSAL Your old refrigerator may have a cooling system that uses
“Ozone Depleting” chemicals. If you are throwing away your old refrigerator,
make sure the refrigerant is removed for proper disposal by a qualified
service technician. If you intentionally release any refrigerants you can be
subject to fines and imprisonment under provisions of the environmental
regulations.
USE OF EXTENSION CORDS
NEVER USE AN EXTENSION CORD! TRUE will not warranty any refrigerator that has
been connected to an extension cord.
REPLACEMENT PARTS
· Component parts shall be replaced with like components. · Servicing shall be
done by authorized service personnel, to
minimize the risk of possible ignition due to incorrect parts or improper
service. · Lamps must be replaced by identical lamps only. · If the supply
cord is damaged, it must be replaced by a special cord or assembly available
from the manufacturer or its service agent.
WWW.TRUEMFG.COM
WARNING!
HOW TO CONNECT ELECTRICITY
DO NOT, UNDER ANY CIRCUMSTANCES, CUT OR REMOVE THE GROUND PRONG FROM THE POWER
CORD. FOR PERSONAL SAFETY, THIS APPLIANCE MUST BE PROPERLY GROUNDED.
The power cord from this appliance is equipped with a grounding plug which
minimizes the possibility of electric shock hazard.
Have the wall outlet and circuit checked by a qualified electrician to make
sure the outlet is properly grounded.
If the outlet is a standard 2-prong outlet, it is your personal responsibility
and obligation to have it replaced with the properly grounded wall outlet.
The refrigerator should always be plugged into it’s own individual electrical
circuit, which has a voltage rating that matches the rating plate.
This provides the best performance and also prevents overloading building
wiring circuits which could cause a fire hazard from overheated wires.
Never unplug your refrigerator by pulling on the power cord. Always grip plug
firmly and pull straight out from the outlet.
Repair or replace immediately all power cords that have become frayed or
otherwise damaged. Do not use a cord that shows cracks or abrasion damage
along its length or at either end.
When removing the refrigerator away from the wall, be careful not to roll over
or damage the power cord.
If supply power cord is damaged it should be replaced with original equipment
manufacture parts. To avoid hazard this should be done by a qualified service
technician.
USE OF ADAPTER PLUGS
NEVER USE AN ADAPTER PLUG! Because of potential safety hazards under certain
conditions, we strongly recommend against the use of an adapter plug.
The incoming power source to the cabinet including any adapters used must have
the adequate power available and must be properly grounded. Only adapters
listed with UL should be used.
NORTH AMERICA USE ONLY!
NEMA plugs
TRUE uses these types of plugs. If you do not have the right outlet have a
certified electrician install the correct power source.
NOTE: International plug configurations vary by voltage and country.
115/60/1 NEMA-5-15R
115/208-230/1 NEMA-14-20R
115/60/1 NEMA-5-20R
208-230/60/1 NEMA-6-15R
2
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
INSTALLATION
OWNERSHIP
To ensure that your unit works properly from the first day, it must be
installed properly. We highly recommend a trained refrigeration mechanic and
electrician install your TRUE equipment. The cost of a professional
installation is money well spent.
Before you start to install your TRUE unit, carefully inspect it for freight
damage. If damage is discovered, immediately file a claim with the delivery
freight carrier.
TRUE is not responsible for damage incurred during shipment.
WWW.TRUEMFG.COM
LOCK AND KEYS
The following procedure is for locking and unlock unit: A. Insert the key and
turn. B. Remove the key.
UNCRATING
TOOLS REQUIRED
· Adjustable Wrench · 1/2 inch socket (Castor Bolts) · 3/4 inch socket (Skid
Bolts) · Level
The following procedure is recommended for uncrating the unit:
A. Remove the outer packaging, (cardboard and bubbles or Styrofoam corners and
clear plastic). Inspect for concealed damage. Again, immediately file a claim
with the freight carrier if there is damage.
B. Move your unit as close to the final location as possible before removing
the wooden skid.
NOTE: KEYS FOR COOLERS WITH DOOR LOCKS ARE LOCATED IN WARRANTY PACKETS.
Insert key
3
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
HOW TO CONNECT ELECTRICITY
Do not, under any circumstances, cut or remove the ground prong from the power
cord. For personal safety, this appliance must be properly grounded.
The power cord of this appliance is equipped with a grounding plug which mates
with a standard grounding wall outlet to minimize the possibility of electric
shock hazard from this appliance. Have the wall outlet and circuit checked by
a qualified electrician to make sure the outlet is properly grounded. If the
outlet is a standard 2-prong outlet, it is your personal responsibility and
obligation to have it replaced with the properly grounded wall outlet. The
unit should always be plugged into its own individual electrical circuit,
which has a voltage rating that matches the rating plate. This provides the
best performance and also prevents overloading building wiring circuits which
could cause a fire hazard from overheated wires. Never unplug your unit by
pulling on the power cord. Always grip plug firmly and pull straight out from
the outlet. Repair or replace immediately all power cords that have become
frayed or otherwise damaged. Do not use a cord that shows cracks or abrasion
damage along its length or at either end. When removing the unit away from the
wall, be careful not to roll over or damage the power cord.
ELECTRIC INSTALLATION & SAFETY INFORMATION
· If the supply cord is damaged, it must be replaced by a special cord or
assembly available from the manufacturer or its service agent.
· Lamps must be replaced by identical lamps only. · Appliance tested according
to the climate classes 5 and 7
temperature and relative humidity.
ELECTRICAL INSTRUCTIONS A. Before your new unit is connected to a power
supply, check the
incoming voltage with a voltmeter. If anything less than 100% of the rated
voltage for operation is noted, correct immediately. B. All units are equipped
with a service cord, and must be powered at proper operating voltage at all
times. Refer to cabinet data plate for this voltage.
TRUE RECOMMENDS THAT A SOLE USE CIRCUIT BE DEDICATED FOR THE UNIT.
WARNING: Compressor warranties are void if compressor burns out due to low
voltage.
WARNING: Power supply cord ground should not be removed!
WARNING: Do not use electrical appliances inside the food storage compartments
of the appliances unless they are of the type recommended by the manufacturer.
NOTE: To reference wiring diagram, remove front louvered grill, wiring diagram
is positioned on the inside cabinet wall.
WIRE GAUGE CHART
115 Volts Amps
2 3 4 5 6
7 8 9 10 12
14 16 18 20 25
30 35 40 45 50
Distance In Feet To Center of Load 20 30 40 50 60 70 80 90 100 120 140 160
14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 12 14 14
14 14 14 14 14 14 14 12 12 12 14 14 14 14 14 14 14 12 12 12 10 10 14 14 14 14
14 14 12 12 12 10 10 10
14 14 14 14 14 12 12 12 10 10 10 8 14 14 14 14 12 12 12 10 10 10 8 8 14 14 14
12 12 12 10 10 10 8 8 8 14 14 14 12 12 10 10 10 10 8 8 8 14 14 12 12 10 10 10
8 8 8 8 6
14 14 12 10 10 10 8 8 8 6 6 6 14 12 12 10 10 8 8 8 8 6 6 6 14 12 10 10 8 8 8 8
8 8 8 5 14 12 10 10 8 8 8 6 6 6 5 5 12 10 10 8 8 6 6 6 6 5 4 4
12 10 8 8 6 6 6 6 5 4 4 3 10 10 8 6 6 6 5 5 4 4 3 2 10 8 8 6 6 5 5 4 4 3 2 2
10 8 6 6 6 5 4 4 3 3 2 1 10 8 6 6 5 4 4 3 3 2 1 1
230 Volts Amps
5 6 7 8 9
10 12 14 16 18
20 25 30 35 40
50 60 70 80 90 100
Distance In Feet To Center of Load 20 30 40 50 60 70 80 90 100 120 140 160
14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 12 14 14
14 14 14 14 14 14 14 14 12 12 14 14 14 14 14 14 14 14 14 12 12 12 14 14 14 14
14 14 14 14 12 12 12 10
14 14 14 14 14 14 14 12 12 12 10 10 14 14 14 14 14 14 12 12 12 10 10 10 14 14
14 14 14 12 12 12 10 10 10 8 14 14 14 14 12 12 12 10 10 10 8 8 14 14 14 12 12
12 10 10 10 8 8 8
14 14 14 12 10 10 10 10 10 8 8 8 14 14 12 12 10 10 10 10 8 8 6 6 14 12 12 10
10 10 8 8 8 6 6 6 14 12 10 10 10 8 8 8 8 6 6 5 14 12 10 10 8 8 8 6 6 6 5 5
12 10 10 8 6 6 6 6 6 5 4 4 12 10 8 6 6 6 6 6 5 4 4 3 10 10 8 6 6 6 5 5 4 4 2 2
10 8 8 6 6 5 5 4 4 3 2 2 10 8 6 6 5 5 4 4 3 3 1 1 10 8 6 6 5 4 4 3 3 2 1 1
4
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
LOCATING
1. Make sure unit is as close to the final location as possible. 2. Remove
the shipping bolts located at the bottom of the
wooden skid. 3. Carefully slide the unit off the wooden skid. Slide packing
material underneath the side of the unit hanging off the skid. Then install
castors or legs for that side of the unit. 4. Then carefully slide the other
side of the unit off one corner at a time while installing castors or legs for
each corner. Use packing material for under each corner of the unit before
installing a castor or leg.
Removing shipping bolts
LEVELING
A. Set unit in its final location. Be sure there is adequate ventilation in
your room. Under extreme heat conditions, (100°F+, 38°C+), you may want to
install an exhaust fan.
WARNING: WARRANTY IS VOID IF VENTILATION IS INSUFFICIENT. B. Proper leveling
of your TRUE cooler is critical to operating
success (for non-mobile models). Effective condensate removal and door
operation will be effected by leveling. C. The cooler should be leveled front
to back and side to side with a level. D. Ensure that the drain hose or hoses
are positioned in the pan. E. Free plug and cord from inside the lower rear of
the cooler (do not plug in). F. The unit should be placed close enough to the
electrical supply so that extension cords are never used. G. Applicance tested
according to the climate classes 5 and 7 for temperature and relative
humidity. NOTE: If the cabinet has a center leveling screw, castor, or leg,
make sure it is adjusted properly so it makes full contact with the floor
after the cabinet has been leveled. WARNING: CABINET WARRANTIES ARE VOID IF
OEM POWER CORD IS TAMPERED WITH.TRUE WILL NOT WARRANTY ANY UNITS THAT ARE
CONNECTED TO AN EXTENSION CORD.
SEALING CABINET TO FLOOR
STEP 1 – Position Cabinet – Allow one inch between the wall and rear of the
refrigerator to assure proper ventilation. For freezers 3 inches between the
wall and rear of the cabinet will assure proper ventilation.
STEP 2 – Level Cabinet – Cabinet should be level, side to side and front to
back. Place a carpenter’s level in the interior floor in four places:
A. Position level in the inside floor of the unit near the doors. (Level
should be parallel to cabinet front). Level cabinet.
B. Position level at the inside rear of cabinet. (Again level should be placed
parallel to cabinet back).
C. Perform similar procedures to steps A & B by placing the level on inside
floor (left and right sides – parallel to the depth of the cooler). Level
cabinet.
STEP 3 – Draw an outline on the base on the floor.
STEP 4 – Raise and block the front side of the cabinet.
STEP 5 – Apply a bead of “NSF Approved Sealant”, (see list below), to floor on
half inch inside the outline drawn.The bead must be heavy enough to seal the
entire cabinet surface when it is down on the sealant.
STEP 6 – Raise and block the rear of the cabinet
STEP 7 – Apply sealant on floor as outlined in Step 5 on other three sides.
STEP 8 – Examine to see that cabinet is sealed to floor around entire
perimeter.
NOTE: Asphalt floors are very susceptible to chemical attack. A layer of tape
on the floor prior to applying the sealant will protect the floor.
NSF APPROVED SEALANTS: 1. Minnesota Mining #ECU800 Caulk
2. Minnesota Mining #ECU2185 Caulk
3. Minnesota Mining #ECU1055 Bead
4. Minnesota Mining #ECU1202 Bead
5. Armstrong Cork – Rubber Caulk
6. Products Research Co. #5000 Rubber Caulk
7. G.E. Silicone Sealer
8. Dow Corning Silicone Sealer
5
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
ROLL-IN & ROLL-THRU RAMP INSTALLATION
Once the cabinet is in its final location and level the roll-in ramp can be
installed. The ramp has three slotted holes in back. These slotted holes slide
over three thumb screws located in the front of the cabinet near the floor.
Be sure the doors are closing smoothly and not binding up on the ramp. To
adjust door sweeper gasket, loosen slotted thumbscrews. The gasket can then be
moved up or down and side to side. The gasket should make some contact with
the ramp when the door is closing.This can be checked by opening up the door
3-4″ and allowing the door to close. This process may have to be done several
times before securing the sweeper gasket bracket. Once gasket is properly
adjusted, tighten slotted thumbscrews.
DOOR SWEEP GASKET ADJUSTMENT To adjust door sweeper gasket, loosen slotted
thumbscrews. The gasket can then be moved up or down and side to side. The
gasket should make some contact with the ramp when the door is closing. This
can be checked by opening up the door 3-4″ and allowing the door to close.
This process may have to be done several times before securing the sweeper
gasket bracket. Once gasket is properly adjusted, tighten slotted thumbscrews.
See image 5.
5
1
2
3
4
6
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
SETUP
STANDARD ACCESSORIES
DOOR CONFIGURATION: After installing, cabinet doors can be adjusted for
alignment. The hinge on the door and hinge on the cabinet can be adjusted
accordingly.
STEP 1
To remove door open at a 90° angle from the cabinet and lift door up and out
from the cabinet hinges carefully avoiding rainshield. Rest the door in a safe
area.
STEP 2
Remove gray plastic cover from hinge located on the cabinet. (See
1
image 1). Use a standard screw driver and pry out the gray cover.
This exposes the three Phillips screws anchoring the hinge to the
cabinet. (See image 2). Loosen these three screws but don’t remove
them. Adjustment can be made slightly up/down and side to side.
STEP 3
The hinge on the cabinet door can also be adjusted. Remove cover from hinge
located on the door. Pull on the cover directly out from the door. (See image
3). This exposes the three Phillips screws anchoring the hinge to the door.
Loosen these three screws but don’t remove them. The hinge can be moved side
to side, up and down. (See image 4).
3
NOTE: WHEN TIGHTENING THE HINGES TO THE CABINET AND DOOR DO NOT APPLY PRESSURE
TO THE PHILLIPS SCREWS. CAREFULLY ANCHOR THEM WITHOUT APPLYING EXTREME AMOUNTS
OF PRESSURE.
STEP 4
To adjust the lock latch remove two Phillips screws and the latch can
be put to the side for later reinstallation. (See image 5). The lock
base that anchors the latch can be adjusted simply by loosening the
two Phillips screws, but not removing them. Then the lock base can
be moved side to side for adjustment. (See image 6). After adjust-
ment is complete tighten the lock base and install the latch back into
place.
5
WWW.TRUEMFG.COM
2 4 6
7
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
OPERATION
STARTUP
A. The compressor is ready to operate. Plug in the cooler.
B. Temperature controls are factory-set to give refrigerators an approximate
temperature of 35°F (1.6°C) and freezers an approximate temperature of -10°F
(-23.3°C). Allow unit to function several hours, completely cooling cabinet
before changing the control setting.
Temperature Control Location and Settings.
· Temperature control type will vary upon model and age of cabinet.
· Mechanical control or electronic control without display: – Inside cabinet –
Behind cabinet – Behind front or rear access grill
· Electronic control with display: – In countertop – In top louvered panel –
In or behind bottom louvered grill
See website for adjustments, sequence of operation, and more information.
C. Excessive tampering with the control could lead to service difficulties.
Should it ever become necessary to replace temperature control, be sure it is
ordered from your TRUE dealer or recommended service agent.
D. Good air flow in your TRUE unit is critical. Be careful to load product so
that it neither presses against the back wall, nor comes within four inches of
the evaporator housing. Refrigerated air off the coil must circulate down the
back wall.
NOTE: If the unit is disconnected or shut off, wait five minutes before
starting again.
RECOMMENDATION – Before loading product we recommend you run your TRUE unit
empty for two to three days. This allows you to be sure electrical wiring and
installation are correct and no shipping damage has occurred. Remember, our
factory warranty does not cover product loss!
LIGHT SWITCH LOCATION: Light switch location depends upon the model. Most
instances the switch is located next to the temperature control.
ENERGY-SAVER SWITCH With the “-” mark in the down position, this will indicate
that the ENERGY SAVER FUNCTION is OFF and will activate the door/ frame
heaters. With the “0” mark in the down position, this will indicate that the
ENERGY SAVER FUNCTION is ON and will deactivate the door/frame heaters.
WWW.TRUEMFG.COM
DIGITAL TEMPERATURE DISPLAY The digital temperature display can view °C or °F.
To achieve this, there is a small plug that will need to be removed to achieve
°C reading. See image 1 for temperature display location. If the plug is kept
in the back of the digital display °F will be viewable. See images for
reference. When temperature display is in °C mode place the plug in a safe
place so it can be easily reinstalled for °F reading.
1
Rear of Rainshield
°F
2
°C
3
8
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
MECHANICAL TEMPERATURE CONTROLS
COIL SENSING An evaporator coil sensing temperature control ensures that the
evaporator coil will remain clear of frost and ice by not allowing the
compressor to restart until the coil temperature is above the freezing
temperature. This is considered an off cycle defrost.
AIR SENSING An air sensing temperature control used in a freezer application
will require a defrost cycle with heaters to ensure that the evaporator coil
is kept clear of frost and ice.
WWW.TRUEMFG.COM
MECHANICAL TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION
MECHANICAL CONTROL REFRIGERATOR GENERAL SEQUENCE OF OPERATION 1. Cabinet is
plugged in.
a. Interior lights will illuminate on Glass Door Models only. If lights do not
come on verify the light switch is in the “ON” position. Solid door cabinets
may or may not have lights that may be controlled by the door switch.
2. The compressor and evaporator fans will start if the temperature control
is calling for cooling. (If the compressor does not start, verify that the
temperature control is not in the “OFF” or “0” position.)
3. The temperature control may cycle the compressor and evaporator fan(s) on
and off together. a. The temperature control is sensing the evaporator coil
temperature. b. The temperature control should be set on the #4 or #5. c. The
warmest setting is #1, the coldest is #9, and #0 is the off position. d. The
thermometer is designed to read and display a cabinet temperature not a
product temperature. The thermometer may reflect the refrigeration cycle
swings of up and down temperatures. The most accurate temperature on a
cabinet’s operation is to verify the product temperature.
4. There is not a defrost timer as the temperature control will initiate the
off-cycle defrost during each refrigeration cycle. a. At this time, the
compressor will and the evaporator fan(s) may turn off. Defrost heaters are
not installed on refrigerators and therefore will not be energized. b. After
the evaporator coil temperature has been reached, as determined by the
temperature control, the compressor will restart.
5. There may be a timer located on the condensing unit base. This timer is
not used for a defrost event. The timer will change the rotation of the
reversing condenser fan motor.
9
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
MECHANICAL CONTROL FREEZER GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in. a. Interior lights will illuminate on glass door
models only. If lights do not come on, verify the light switch is in the “ON”
position. Solid door cabinets may or may not have lights that may be
controlled by the door switch.
2. The compressor only will start if the temperature control is calling for
cooling. (If the compressor does not start, verify that the temperature
control is not in the “OFF” or “0” position or the cabinet is not in a defrost
event.) a. The evaporator fan(s) will remain off until a specific temperature
of the evaporator coil is reached.
3. The temperature control may cycle the compressor and evaporator fan(s) on
and off together. a. The temperature control is sensing the air temperature.
b. The temperature control should be set on the #4 or #5. c. The warmest
setting is #1, the coldest is #9, and #0 is the off position. d. The
thermometer is designed to read and display a cabinet temperature not a
product temperature. The thermometer may reflect the refrigeration cycle
swings of up and down temperatures. The most accurate temperature on a
cabinet’s operation is to verify the product temperature.
4. The defrost timer will initiate defrost during specific times of day. a.
At this time, the compressor and evaporator fan(s) will turn off and the
evaporator coil heater and drain tube heater will be energized. Some cabinets
may also change the rotation of the reversing condenser fan motor. b. After
the predetermined evaporator coil temperature has been reached or duration for
defrost has expired, the compressor will restart and the evaporator fan(s)
will remain off until a specific temperature of the evaporator coil is
reached.
10
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WHEN TO MAKE AN ADJUSTMENT TO A MECHANICAL TEMPERATURE CONTROL We advise to
make a mechanical temperature control adjustment only for a high altitude
location.
WWW.TRUEMFG.COM
HOW TO ADJUST A MECHANICAL TEMPERATURE CONTROL
OPERATION INSTRUCTIONS: REQUIRED TOOLS: · Jewelers Screw Driver (Small Screw Driver)
GE CONTROL INSTRUCTIONS:
The scale to the right may be used as a guide for measuring degrees of
rotation required for altitude correction. See Figure 1. The arrows indicate
direction of screw rotation. Turn calibration screw clockwise to obtain warmer
operating temperatures.
NOTE: Each 1/4 turn of the calibration screw is equal to
approximately 2 degrees F. Do not make more than 3/4 turn.
After making adjustment, measure temperature during three
cycles before adjusting again.
NOTE: Only adjust the screw (small flathead) on the face of the control (next to the cam). See Figure 3. Follow the Altitude Correction Table to the right.
ALTITUDE CORRECTION TABLE:
CALIBRATION SCREW ADJUSTS
BOTH CUT-IN AND CUT-OUT
Altitude (Feet)
Clockwise Turns
2000
7/60
3000
11/60
4000
15/60
5000
19/60
6000
23/60
7000
27/60
8000
30/60
9000
34/60
10,000
37/60
Scale Guide for Measuring
60
55
5
50
WARMER
10
45
15
40
C OLD E R
20
35
25
30
1
Back of Temperature Control Compressor
Terminals
Ground Terminal
2
Altitude Correction Front of Temperature Control
Calibration Screw
To adjust the temperature control
take the control knob off to view the
3
cut-in screw. (See Photo Above)
INSTALLATION INSTRUCTIONS DANFOSS TEMPERATURE CONTROL ADJUSTMENT FOR HIGH
ALTITUDE APPLICATIONS: REQUIRED TOOLS: · Allen Wrench (5/64″) · Torx Screw
(T-7)
TERMS: Cut-out – Temperature sensed by the controller that shuts the
compressor off.
Cut-in – Temperature sensed by the controller that turns the compressor on.
11
Bottom of Temperature Control
Cut-out Adjustment Screw Allen (5/64″ or 2 mm.)
Compressor Connection
1
Cut-in Adjustment Screw Torx (T-7)
Compressor Connection (double terminal)
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
INSTRUCTIONS: DANFOSS TEMPERATURE CONTROL ADJUSTMENT FOR HIGH ALTITUDE
APPLICATIONS
STEP 1 – Unplug cooler.
STEP 2 – Remove the screws that secure the temperature control to the inset
box.
STEP 3 – To make these adjustments it may be necessary to remove the
temperature control from the housing.
NOTE: You may have to remove the wires attached to the control. Take note as
to which wire is on which spade terminal.
STEP 4 – Pull out gently from cabinet.
NOTE: Mechanical temperature controllers are affected when functioning at high
altitude. The cut-in and cut-out temperatures will be colder than when the
controller functions closer to sea level.
STEP 5 – For high elevation installations, it may be necessary to “warm-up”
the set points. To make the adjustment, insert the appropriate tool in each
adjustment screw and turn 1/4 of a revolution clockwise (to the right). This
procedure will adjust both the cut-in and cut-out about 2°F warmer.
STEP 6 – Make sure to reconnect the wires to the proper spade terminal when
reinstalling.
INSTALLATION INSTRUCTIONS TEMPERATURE CONTROL ALTITUDE ADJUSTMENT: REQUIRED
TOOLS: · Allen Wrench (5/64″) · Torx Screw (T-7)
The scale to the right may be used as a guide for measuring degrees of
rotation required for altitude correction. The arrows indicate direction of
screw rotation. See Figure 1.
IMPORTANT: Upright models ordered with “High Altitude” temperature controls
are pre-calibrated and do not require adjustment.
Scale Guide for Measuring
360
90
270
180
1
INSTRUCTIONS: CUTLER HAMMER TEMPERATURE CONTROL ALTITUDE ADJUSTMENT
STEP 1 – Unplug cooler. STEP 2 – Turn the temperature control to the “9”
position. STEP 3 – Remove the screws that secure the mounting plate to the
evaporator top. See Figure 2. STEP 4 – Pull control down gently from housing.
STEP 5 – Turn screws counterclockwise (CCW). STEP 6 – Reassemble to cooler
housing and return the temperature control to the “5” position.
12
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
98 7
O
Height
2000′ 3000′ 4000′ 5000′ 6000′ 7000′ 8000′ 9000′ 10,000′
CHART
CCW Adjustment (based on 360°/ complete turn)
42° 78° 114° 150° 186° 222° 258° 294° 330°
4 5
3
2
1
98 7 6
BUL. NO.
O
1
CUT OUT
2
COLDER
3
4 5
CUT IN
2
13
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
DEFROST TIMER
DEFROST TIME CLOCK OPERATION FOR UNITS WITH MECHANICAL CONTROL
RECOMMENDED DEFROST SETTINGS:
TRUE Manufacturing has factory set your defrost time clock to a recommended
time and duration defrost scenario. All refrigeration equipment operating
below 30°F will accumulate frost on the evaporator coil and will require
routine defrost.Your TRUE equipment has been designed for three defrost
periods (6:00 a.m., 2:00 p.m. and 10:00 p.m.). If you decide to deviate from
these defrost time settings please follow the procedures for adjustment below.
TOOLS REQUIRED
· Phillips Head Screwdriver · 1/4″ Nut Driver or Socket
SETTING THE TIMER:
UNPLUG UNIT FROM POWER SUPPLY! DO NOT SET THE TIME BY ROTATING THE “OUTER”
DIAL.
Turn the minute hand clockwise until the time of day on the outer dial is
aligned with the triangle marker on the inner dial (two o’clock position).
ADJUSTING THE DEFROST TIMER:
Your TRUE freezer contains a defrost system that is temperature terminated,
however the time clock has been designed with a time termination back-up so
that the defrost period will not exceed thirty minutes. While TRUE requires a
minimum 3 defrost periods not to exceed 30 minutes the procedure on this page
should be followed to customize your specific needs.
NOTICE: If timer is not set for a minimum of 3 defrost per day for 30 minutes
each, the coil may develop excessive frost. This may lead to system failure
and product loss, which is not covered under warranty.
The following procedure may be followed to customize your needs.
High usage, high temperature, and high humidity may require 4 defrost settings
per day.
WARNING: Always follow the manufacturer’s recommended settings when
programming the amount and duration of the defrost cycles.
STEP 1: The white tabs located on the outmost area of the time clock have been
factory set for (6:00 a.m., 2:00 p.m., and 10:00 p.m.). Each tab represents 15
minutes of defrost time. Notice that at each defrost time two white tabs are
set for 15 minutes each for a total of 30 minutes of defrost.
STEP 2: In order to program the time to begin the defrost cycle, flip the
white tabs out to set the defrost time.To eliminate a defrost time flip the
white tabs back toward the center of the Defrost Timer.
STEP 3: TRUE recommends a 30 minute defrost cycle three times per day.
1
2
Outer most dial. White tabs represent 15 minutes of defrost time.
Time of day.
Inner most dial.
14
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
ELECTRONIC TEMPERATURE CONTROLS
LAE ELECTRONIC TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION
t1 = Thermostat t2 = Defrost t3 = Display t3 probe is not installed and / or
activated in all applications when t3 is not installed and / or activated, the
display probe is t1.
WWW.TRUEMFG.COM
LAE ELECTRONIC CONTROL GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in. a. Display will illuminate. b. Interior light will
illuminate on Glass Door Models only. Solid door cabinet lights are controlled
by the door switch.
2. After the LAE control preprogrammed time delay of up to 6 minutes, the
compressor and evaporator fan(s) will start if the control is calling for
cooling. a. Control or condenser fans may be already pre-programmed from the
factory so at the start of every compressor cycle or during a defrost cycle,
the condenser fan(s) will reverse for 30 seconds to blow dirt off the
condensing coil.
3. The LAE control will cycle the compressor but may also cycle evaporator
fan(s) on and off determined by the Set-Point and Differential temperatures.
a. The Set-Point is the adjustable preprogrammed temperature which shuts off
the compressor and evaporator fan(s). This is not the programmed cabinet
temperature. b. The Differential is the non adjustable preprogrammed
temperature that is added to the Set-Point temperature that will restart the
compressor and evaporator fan(s). c. The LAE control is designed to read and
display a cabinet temperature not a product temperature. This cabinet
temperature may reflect the refrigeration cycle of the Set-Point and its
Differential, or it may show an average temperature. The most accurate
temperature on a cabinets operation is to verify the product temperature.
Example: If the Set-Point is -9°F/-23°C and the Differential is 10°F/5°C (Set-
Point) -9°F + 10 (Differential) = 1°F
Or
(Set-Point) -23°C + 5 (Differential) = -18°C The compressor and evaporator
fan(s) will cycle off -9°F/-23°C and back on at 1°F/-18°C
4. The LAE control may be preprogrammed to initiate defrost by interval or at
specific times of day. a. At this time the “dEF” will appear on the display
and compressor will turn off until a preprogrammed temperature or duration is
reached. During this time for freezers only, evaporator fan(s) will also turn
off and the coil heater and drain tube heaters will also be energized. Some
cabinets may also change the rotation of the reversing condenser fan motor. b.
After the preprogrammed temperature or duration for defrost has been reached
there may be a short delay for both the compressor and evaporator fans to
restart. At this time “dEF” may still appear on the display for a short time.
15
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
HOW TO DIAGNOSE AN LAE ELECTRONIC CONTROL
Indicator lights for Refrigeration/Heating Mode, Fan Operation, Defrost Mode.
LAE Control
LAE Control Icons
Info / Set Point Button
Manual Defrost / Down Button
Manual Activation Up Button
Stand-By Button
Compressor Running Evaporator Fan Running Cabinet in Defrost Activation of 2nd Parameter Set Alarm
USING THE LAE ELECTRONIC CONTROL
LOCKING AND UNLOCKING THE LAE CONTROLLER:
1
WHY: Locking of control is necessary to prevent changes to program that may affect
cabinet operation.
HOW TO LOCK AND UNLOCK LAE CONTROLLER:
STEP 1 – To change lock setting press and release the Info button
.
“t1” will appear. See image 1.
STEP 2 – Press the Down button
until “Loc” appears. See image 2.
STEP 3 – While pressing and holding the Info button
press the Up
or Down
button to change the lock settings. If “no” appears,
the controller is unlocked. If “yes” appears, the controller is locked. See
images 3 and 4.
STEP 4 – Once the lock setting has been set correctly release the
info button
. Wait 5 seconds for the display to show temperature.
See image 5.
2
3
Image 3: If “no” appears on screen, the controller is unlocked.
4
Image 4: If “yes” appears on screen, the controller is locked.
5
16
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
LAE Control
Info / Set Point Button
Manual Defrost / Down Button
Manual Activation Up Button
HOW TO TURN OFF THE LAE ELECTRONIC CONTROL: May need to unlock control.
WHY: Turning off the control will deactivate all electrical components.
CAUTION: Turning off the control will not shut off power to the cabinet.
Cabinet must be unplugged prior to any repair.
HOW TO TURN OFF THE LAE ELECTRONIC CONTROL:
STEP 1 – To turn off control, press and hold the Stand-by button
until
“OFF” appears. Release Stand-by button. See Image 2.
STEP 2 – To turn on control, repeat prior steps and a temperature will appear.
Stand-By Button
1 2
TURNING THE GLASS DOOR MODEL LIGHTS ON AND OFF: May need to unlock control.
WHY: Light may be controlled by LAE Controller or interior light switch.
HOW TO TURN THE GLASS DOOR MODEL LIGHT ON AND OFF:
STEP 1 – To control interior / sign lights by the LAE Controller, press and
release the Manual Activation button
.
STEP 2 – To control interior / sign lights by the interior door switch, depress the rocker switch to the “ON” position. Light switch is located on inside top right of the ceiling.
ON Position
(Solid Door model lights are controlled by a door switch)
17
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
LAE Control
CHANGING THE “SET POINT”: May need to unlock control.
WHY: The set point is the temperature at which the compressor will shut off.
NOTE: The “set point” IS NOT the cabinet holding temperature.
HOW TO CHANGE THE “SET POINT”:
STEP 1 – To see the set point, press and hold the Info button
.
See image 1.
STEP 2 – While still holding the Info button
, press the Up
or
Down
button to change the “set point”.
STEP 3 – Once the “set point” has been set correctly release the Info
button
.The display will show temperature. See image 2.
WWW.TRUEMFG.COM
Info / Set Point Button
Manual Defrost / Down Button
Manual Activation Up Button
Stand-By Button
1 2
18
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
LAE Control
Info / Set Point Button
Manual Defrost / Down Button
Manual Activation Up Button
Stand-By Button
INITIATE A MANUAL DEFROST: May need to unlock control.
WHY: A one time additional defrost may be necessary to clear accumulated frost
/ ice from evaporator coil.
HOW TO INITIATE A MANUAL DEFROST: The method to initiate a manual defrost is determined by the Defrost Mode Parameter “DTM” preprogrammed in the controller.
REGULAR TIME DEFROST (TIM) If controller is preprogrammed for “TIM”, press and release the Manual Defrost button
until “dEF” appears.
REAL TIME CLOCK (RTC)
If controller is preprogrammed for “RTC” press the and hold the Manual Defrost button
for 5 seconds until “dh1” appears.
Release the Manual Defrost button
and then press and hold for an additional 5 seconds until “dEF” appears.
NOTE: Defrost will only terminate once a specific preset temperature or a preset time duration is reached.
19
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
LAE Control
Info / Set Point Button
Manual Defrost / Down Button
Manual Activation Up Button
CHANGING “DEFROST INTERVALS”: May need to unlock control.
This can only be changed if defrost mode parameter “DFM” is set for “TIM”.
WHY: The defrost interval is the time duration between defrost cycles. The
defrost interval time starts when the cabinet is supplied power or after a
manual defrost.
HOW TO CHANGE “DEFROST INTERVALS”:
STEP 1 – To see the set point, press and hold the Info button
Stand-by button
at the same time.
and the
NOTE: Depending on the version of control, one of three parameters will appear: “ScL” image 1a, “SPL” image 1b, “MdL” image 1c.
STEP 2 – Push the Up button
until “dFt” appears. See image 2.
STEP 3 – Press and hold the Info button time. See image 3.
to see the defrost interval
STEP 4 – While pressing and holding the Info button
, press the
Up
or Down
button to change the defrost interval times (higher
the number the less frequent the cabinet will defrost).
STEP 5 – Once the defrost interval time has been changed, release the Info
button
.
STEP 6 – Wait 30 seconds for the display to show temperature. See image 4.
Stand-By Button
1a
1b
1c
2
3
4
20
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
LAE Control
Info / Set Point Button
Manual Defrost / Down Button
HOW TO CHANGE DISPLAY READOUT FROM FAHRENHEIT TO CELSIUS:
May need to unlock control. This can NOT be changed with the LAE model AR2-28
version of the control. See page 32 for more information.
WHY: Changing readout will assist with customer application.
HOW TO CHANGE DISPLAY READOUT FROM FAHRENHEIT TO CELSIUS:
STEP 1 – To change the display, press and hold the Info button
and
the Stand-by button
at the same time. “MdL” or “SPL” will appear.
See images 1a and 1b.
STEP 2 – Push the Down button
until “ScL” appears. See image 2.
STEP 3 – Press and hold the Info button See image 3.
to see the “readout scale”.
STEP 4 – While pressing and holding the Info button
, press the
up
or down
button to change the “readout scale”.
See image 4.
STEP 5 – Once the “readout scale” has been changed, release the info
button
.
STEP 6 – Wait 30 seconds for the display to show temperature. See image 5.
Manual Activation Up Button
Stand-By Button
1a 1b 2 3 4 5
21
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
LAE Control
WWW.TRUEMFG.COM
Info / Set Point Button
Manual Defrost / Down Button
Manual Activation Up Button
Stand-By Button
DISPLAYING TEMPERATURE PROBES,T1,T2,T3: WHY: To display temperature probe readings in different locations of the cabinet.
1
HOW TO DISPLAY PROBE TEMPERATURES:
STEP 1 – To display T1 temperature, press and release the info button . “t1” will appear. See image 1.
STEP 2 – Press and hold the info button
. This is the temperature of
the T1 Probe. See image 2.
2
STEP 3 – By releasing the info button
, “t2” will appear. Press and hold
the info button
to display the temperature of the T2 probe.
STEP 4 – By releasing the info button
again, “t3” will appear. Press and
hold the info button
to display the temperature of the T3 probe. (If
probe T3 is not activated, “t3” will not appear of the display.)
DISPLAY CODES
DISPLAY
Defrost in progress Controller in stand-by Door open alarm Instant Probe 1
temperature Instant Probe 2 temperature Instant Probe 3 temperature Minutes of
the Real Time Clock Hours of the Real Time Clock
Room high temperature alarm Room low temperature alarm Probe T1 failure Probe T2 failure Probe T3 failure Maximum probe 1 temperature recorded Minimum probe 1 temperature recorded Keypad state lock
22
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
LAE CONTROLLER PARAMETER SETTINGS FOR CELSIUS For LAE control model AR2-28
ONLY, ALL parameters with a formula shown need to be converted for Celsius
applications.
EXAMPLE: If current SPL is set for 20 degrees F the formula is (X-32) / 1.8
(20-32) / 1.8 = -6.7 Celsius
SUBJECT TO CHANGE
WWW.TRUEMFG.COM
SCL SPL SPH SP C-H HYS CRT CT1 CT2 CSD DFM DFT DH1 DH2 DH3 DH4 DH5 DH6 DLI DTO DTY DPD DRN DDM DDY FID FDD FTO FCM FDT FDH FT1 FT2 FT3 ATM ALA AHA ALR AHR ATI ATD
1C (X-32) / 1.8 (X-32) / 1.8 (X-32) / 1.8
AR2-28
(X) / 1.8
(X-32) / 1.8
(X-32) / 1.8 (X) / 1.8 (X) / 1.8
(X-32) / 1.8 (X-32) / 1.8
(X) / 1.8 (X) / 1.8
ADO AHM AHT ACC IISM IISL IISH IISP IIHY IIFC HDS IIDF
SB DS DSM DI2 STT EDT LSM OA1 OA2 CD INP OS1 T2 OS2 T3 OS3 TLD TDS AVG SIM ADR
(X-32) / 1.8 (X-32) / 1.8 (X-32) / 1.8 (X-32) / 1.8
(X) / 1.8
(X) / 1.8 (X) / 1.8 (X) / 1.8
23
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
MAINTENANCE, CARE, CLEANING
CLEANING THE CONDENSER COIL
When using electrical appliances, basic safety precautions should be followed,
including the following. Disconnect power to unit.
TOOLS REQUIRED · Phillips Screwdriver · Stiff Bristle Brush · Adjustable Wrench
· Air Tank or CO2 Tank · Vacuum Cleaner
STEP 1: Disconnect power to unit.
STEP 2: Remove all screws securing top screen to unit. See image 1.
STEP 3: Clean off accumulated dirt from the condenser coil and the fan with a stiff bristle brush. After brushing the components off
1
vacuum all dirt residue from the coil, fan, and surrounding areas. See
image 2.
NOTE: If you cannot completely clean the condensing coil due to its position, then the front louvered panel will need to be removed. See Images 3 and 4.
2
WWW.TRUEMFG.COM
3
Rainshield removal, top screws.
4
Rainshield removal, bottom screws.
5
Disconnect digital temperature control connections.
24
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
IMPORTANT WARRANTY INFORMATION
Condensers accumulate dirt and require cleaning every 30 days. Dirty
condensers result in compressor failure, product loss, and lost sales… which
are not covered by warranty.
If you keep the Condenser clean you will minimize your service expense and
lower your electrical costs. The Condenser requires scheduled cleaning every
thirty days or as needed.
Air is pulled through the Condenser continuously, along with dust, lint,
grease, etc.
A dirty Condenser can result in NON-WARRANTEED part & Compressor Failures,
Product Loss, and Lost Sales.
Proper cleaning involves removing dust from the Condenser. By using a soft
brush, or vacuuming the Condenser with a shop vac, or using CO2, nitrogen, or
pressurized air.
If you cannot remove the dirt adequately, please call your refrigeration
service company.
On the Spec Series units the condenser is accessible on the top of the unit.
You must lift open the cabinet rainshield to expose the Condenser. (Spec
Series models)
The Condenser looks like a group of vertical fins. You need to be able to see
through the condenser for the unit to function at maximum capacity. Do not
place filter material in front of condensing coil. This material blocks air-
flow to the coil similar to having a dirty coil.
THE CLEANING OF THE CONDENSER IS NOT COVERED BY THE WARRANTY!
HOW TO CLEAN THE CONDENSER: 1. Disconnect the electrical power to the unit. 2.
Open the rainshield. 3. Vacuum or brush the dirt, lint, or debris from the
finned
condenser coil. 4. If you have a significant dirt build up you can blow out
the
condenser with compressed air. (CAUTION MUST BE USED TO AVOID EYE INJURY. EYE
PROTECTION IS RECOMMENDED.) 5. When finished be sure to close the rainshield.
6. Reconnect the electrical power to the unit. If you have any questions,
please call TRUE Manufacturing at 636-2402400 or
800-325-6152 and ask for the Service
Department. Direct to Service Department 1(855)372-1368. Service Department
Availability Monday-Thursday 7:00 a.m. to 7:00 p.m., Friday 7:00 a.m. to 6:00
p.m. and Saturday 8:00 a.m. to 12:00 p.m. CST.
Airflow
Condensing Unit Condenser
25
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
STAINLESS STEEL EQUIPMENT CARE AND CLEANING
CAUTION: Do not use any steel wool, abrasive or chlorine based products to
clean stainless steel surfaces.
STAINLESS STEEL OPPONENTS
There are three basic things which can break down your stainless steel’s
passivity layer and allow corrosion to rear its ugly head.
1. Scratches from wire brushes, scrapers, and steel pads are just a few
examples of items that can be abrasive to stainless steel’s surface.
2. Deposits left on your stainless steel can leave spots. You may have hard
or soft water depending on what part of the country you live in. Hard water
can leave spots. Hard water that is heated can leave deposits if left to sit
too long. These deposits can cause the passive layer to break down and rust
your stainless steel. All deposits left from food prep or service should be
removed as soon as possible.
3. Chlorides are present in table salt, food, and water. Household and
industrial cleaners are the worst type of chlorides to use.
RECOMMENDED CLEANERS FOR CERTAIN SITUATIONS / ENVIRONMENTS OF STAINLESS STEEL
A. Soap, ammonia and detergent medallion applied with a cloth or sponge can be
used for routine cleaning.
B. Arcal 20, Lac-O-Nu Ecoshine applied provides barrier film for fingerprints
and smears.
C. Cameo, Talc, Zud First Impression is applied by rubbing in the direction of
the polished lines for stubborn stains and discoloring.
D. Easy-off and De-Grease It oven aid are excellent for removals on all
finishes for grease-fatty acids, blood and burnt-on foods.
E. Any good commercial detergent can be applied with a sponge or cloth to
remove grease and oil.
F. Benefit, Super Sheen, Sheila Shine are good for restoration / passivation.
NOTE: The use of stainless steel cleaners or other such solvents is not
recommended on plastic parts.Warm soap and water will suffice.
8 STEPS THAT CAN HELP PREVENT RUST ON STAINLESS STEEL:
1. USING THE CORRECT CLEANING TOOLS Use non-abrasive tools when cleaning your
stainless steel products. The stainless steel’s passive layer will not be
harmed by soft cloths and plastic scouring pads. Step 2 tells you how to find
the polishing marks.
2. CLEANING ALONG THE POLISH LINES Polishing lines or “grain” are visible on
some stainless steels. Always scrub parallel to visible lines on some
stainless steels. Use a plastic scouring pad or soft cloth when you cannot see
the grain.
3. USE ALKALINE, ALKALINE CHLORINATED OR NON-CHLORIDE CONTAINING CLEANERS
While many traditional cleaners are loaded with chlorides, the industry is
providing an ever increasing choice of non-chloride cleaners. If you are not
sure of your cleaner’s chloride content contact your cleaner supplier. If they
tell you that your present cleaner contains chlorides, ask if they have an
alternative. Avoid cleaners containing quaternary salts as they can attack
stainless steel, causing pitting and rusting.
4. WATER TREATMENT To reduce deposits, soften the hard water when possible.
Installation of certain filters can remove corrosive and distasteful elements.
Salts in a properly maintained water softener can be to your advantage.
Contact a treatment specialist if you are not sure of the proper water
treatment.
5. MAINTAINING THE CLEANLINESS OF YOUR FOOD EQUIPMENT Use cleaners at the
recommended strength (alkaline chlorinated or non-chloride). Avoid build-up of
hard stains by cleaning frequently. When boiling water with your stainless
steel equipment, the single most likely cause of damage is chlorides in the
water. Heating any cleaners containing chlorides will have the same damaging
effects.
6. RINSE When using chlorinated cleaners you must rinse and wipe dry
immediately. It is better to wipe standing cleaning agents and water as soon
as possible. Allow the stainless steel equipment to air dry. Oxygen helps
maintain the passivity film on stainless steel.
7. HYDROCHLORIC ACID (MURIATIC ACID) SHOULD NEVER BE USED ON STAINLESS STEEL
8. REGULARLY RESTORE/PASSIVATE STAINLESS STEEL
26
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
GENERAL MAINTENANCE
LIGHT BULB REPLACEMENT (INTERIOR LIGHTS) GENERAL MAINTENANCE WARNING: When
replacing a light bulb make sure power to the unit is either turned off or
unplugged. Be careful when removing the light bulb. Please be aware of your
local ordinances in disposing old bulbs. These bulbs should be disposed in a
safe and correct manner.
· Simply unscrew the light bulb. See images 1 & 2.
1
Interior Light
2
Interior Light
WWW.TRUEMFG.COM
FOR ADDITIONAL MAINTENANCE INSTRUCTION,
PLEASE VISIT THE MEDIA CENTER AT
27
WWW.TRUEMFG.COM
TRUE
SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH
WWW.TRUEMFG.COM
WARRANTY INFORMATION (U.S.A. & CANADA ONLY!)
THIS WARRANTY ONLY APPLIES TO UNITS SHIPPED FROM TRUE’S MANUFACTURING
FACILITIES AFTER SEPTEMBER 1, 2015.
THREE-YEAR PARTS & LABOR WARRANTY
TRUE warrants to the original purchaser of every new TRUE refrigerated unit,
the cabinet and all parts thereof, to be free from defects in material or
workmanship, under normal and proper use and maintenance service as specified
by TRUE and upon proper installation and start-up in accordance with the
instruction packet supplied with each TRUE unit. TRUE’s obligation under this
warranty is limited to a period of three (3) years from the date of original
installation or 39 months after shipment date from TRUE, whichever occurs
first.
Any part covered under this warranty that are determined by TRUE to have been
defective within three (3) years of original installation or thirty-nine (39)
months after shipment date from manufacturer, whichever occurs first, is
limited to the repair or replacement, including labor charges, of defective
parts or assemblies. The labor warranty shall include standard straight time
labor charges only and reasonable travel time, as determined by TRUE.
Warranty does not cover standard wear parts which include door gaskets,
incandescent bulbs or fluorescent bulbs. Warranty also does not cover issues
caused by improper installation or lack of basic preventative maintenance
which includes regular cleaning of condenser coils.
ADDITIONAL TWO-YEAR COMPRESSOR WARRANTY
In addition to the Three (3) year warranty stated above, TRUE warrants its
hermetically and semi-hermetically sealed compressor to be free from defects
in both material and workmanship under normal and proper use and maintenance
service for a period of two (2) additional years from the date of original
installation but not to exceed five (5) years and three (3) months after
shipment from the manufacturer.
Compressors determined by TRUE to have been defective within this extended
time period will, at TRUE’s option, be either repaired or replaced with a
compressor or compressor parts of similar design and capacity.
The two (2) year extended compressor warranty applies only to hermetically and
semi-hermetically sealed parts of the compressor and does not apply to any
other parts or components, including, but not limited to: cabinet, paint
finish, temperature control, refrigerant, metering device, driers, motor
starting equipment, fan assembly or any other electrical component, etcetera.
404A/134A/HYDROCARBON COMPRESSOR WARRANTY
The two year compressor warranty detailed above will be voided if the
following procedure is not carefully adhered to: 1. This system contains
R404A, R134A, or R290 refrigerant and polyol ester lubricant. The polyol ester
lubricant has rapid moisture absorbing
qualities. If long exposure to the ambient conditions occur, the lubricant
must be removed and replaced with new. For oil amounts and specifications
please call TRUE technical service department
(855-372-1368). Failure to comply with
recommended lubricant specification will void the compressor warranty.
2. Drier replacement is very important and must be changed when a system is
opened for servicing. An OEM exact replacement should be used. The new drier
must also be the same capacity as the drier being replaced.
3. Micron level vacuums must be achieved to insure low moisture levels in the
system. 500 microns or lower must be obtained.
WARRANTY CLAIMS
All claims for labor or parts must be made directly through TRUE. All claims
should include: model number of the unit, the serial number of the cabinet,
proof of purchase, date of installation, and all pertinent information
supporting the existence of the alleged defect.
In case of warranty compressor, the compressor model tag must be returned to
TRUE along with above listed information. Any action or breach of these
warranty provisions must be commenced within one (1) year after that cause of
action has occurred.
WHAT IS NOT COVERED BY THIS WARRANTY
TRUE’s sole obligation under this warranty is limited to either repair or
replacement of parts, subject to the additional limitations below. This
warranty neither assumes nor authorizes any person to assume obligations other
than those expressly covered by this warranty.
NO CONSEQUENTIAL DAMAGES. TRUE IS NOT RESPONSIBLE FOR ECONOMIC LOSS; PROFIT
LOSS; OR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT
LIMITATION, LOSSES OR DAMAGES ARISING FROM FOOD OR PRODUCT SPOILAGE CLAIMS
WHETHER OR NOT ON ACCOUNT OF REFRIGERATION FAILURE.
WARRANTY IS NOT TRANSFERABLE. This warranty is not assignable and applies only
in favor of the original purchaser/user to whom delivered. ANY SUCH ASSIGNMENT
OR TRANSFER SHALL VOID THE WARRANTIES HEREIN MADE AND SHALL VOID ALL
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
IMPROPER USAGE. TRUE ASSUMES NO LIABILITY FOR PARTS OR LABOR COVERAGE FOR
COMPONENT FAILURE OR OTHER DAMAGES RESULTING FROM IMPROPER USAGE OR
INSTALLATION OR FAILURE TO CLEAN AND/OR MAINTAIN PRODUCT AS SET FORTH IN THE
WARRANTY PACKET PROVIDED WITH THE UNIT.
RELOCATION OF CABINET FOR REPAIR. True is not responsible for the cost to move
a cabinet for any reason from its position of operation on the customer’s
premises to make a warranty repair.
NON OEM PARTS. Use of non OEM parts without manufacturer’s approval will void
cabinet warranty. ALTERATION, NEGLECT, ABUSE, MISUSE, ACCIDENT, DAMAGE DURING
TRANSIT OR INSTALLATION, FIRE, FLOOD, ACTS OF GOD. TRUE is not responsible for
the repair or replacement of any parts that TRUE determines have been
subjected after the date of manufacture to alteration, neglect, abuse, misuse,
accident, damage during transit or installation, fire, flood, or act of God.
IMPROPER ELECTRICAL CONNECTIONS. TRUE IS NOT RESPONSIBLE FOR THE REPAIR OR
REPLACEMENT OF FAILED OR DAMAGED COMPONENTS RESULTING FROM INCORRECT SUPPLY
VOLTAGE, THE USE OF EXTENSION CORDS, LOW VOLTAGE, OR UNSTABLE SUPPLY VOLTAGE.
NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE:
THERE ARE NO OTHER WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, EXCEPT THE
THREE (3) YEAR PARTS & LABOR WARRANTY AND THE ADDITIONAL TWO (2) YEAR
COMPRESSOR WARRANTY AS DESCRIBED ABOVE. THESE WARRANTIES ARE EXCLUSIVE AND IN
LIEU OF ALL OTHER WARRANTIES, INCLUDING IMPLIED WARRANTY AND MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO WARRANTIES WHICH EXTEND
BEYOND THE DESCRIPTION ON THE FACE HEREOF. OUTSIDE U.S. AND CANADA: This
warranty does not apply to, and TRUE is not responsible for, any warranty
claims made on products sold or used outside the United States and Canada.
This warranty only applies to units shipped from True’s manufacturing
facilities after September 1, 2015.
28