Minusforty 13-USGR-F2 User manual

Model:
Serial Number:
Date of Purchase:
To better help you obtain assistance or service should you ever need it, write down the
following information about the product. This information is on the identification label
located on the left hand inside wall of the cabinet. We advise you to keep this Owners
Manual and sales slip in your possession.
Owners Manual
Payment Enabled
Glass Door Refrigerators
230V 50Hz
Single Door Models (with Smartlock and POS Terminal)
13-USGR-F2, 19-USGR-F2, 22-USGR-F2
13-USGR-L2, 19-USGR-L2, 22-USGR-L2
MNL_R290 USGR-F2-L2 230V POS_EN20210923
30 Armstrong Ave. Georgetown, Ontario Canada L7G 4R9
30 Armstrong Avenue
Georgetown, Ontario
Canada L7G 4R9
Tel: [phone]
Fax: [phone]
email: [e-mail]
web: minusforty.com
tel [phone] ·fax [phone] ·MINUSFORTY.com

ATTENTION
Heat Insulation Material Polyurethane (PU) Foam
with Carbon Dioxide
Do not put the unit in with regular waste.
Please check your obligations in accordance
with the national WEEE provisions and the
local WEEE disposals partner. Ensure the
piping is not damaged in the process.
ATTENTION
Heat Insulation Material Polyurethane (PU) Foam
with Carbon Dioxide
Do not put the unit in with regular waste.
Please check your obligations in accordance
with the national WEEE provisions and the
local WEEE disposal partner. Ensure the
piping is not damaged in the process.

24
WIRING DIAGRAM (USGR-F2 , USGR-L2 MODELS WITH SMARTLOCK)
WARNING
THIS UNIT IS CHARGED WITH PROPANE REFRIGERANT. PRO-
PANE IS AN EXTREMELY FLAMMABLE AND EXPLOSIVE GAS.
PLEASE READ CAREFULLY THIS MANUAL/GUIDE AND FOL-
LOW ALL SAFETY PRECAUTIONS CONTAINED HEREIN TO RE-
DUCE A RISK OF FIRE AND/OR EXPLOSION. FAILURE TO
FOLLOW THE SAFETY PRECAUTIONS MAY RESULT IN
SERIOUS INJURY OR DEATH, AND/OR PROPERTY DAMAGE.
CAUTIONARY INSTRUCTIONS FOR UNITS CHARGED WITH
PROPANE (R290) REFRIGERANT
• WARNING: KEEP CLEAR OF OBSTRUCTION ALL VENTILATION OPENINGS IN
THE APPLIANCE ENCLOSURE OR IN THE STRUCTURE FOR
BUILDING-IN.
• WARNING: DO NOT USE MECHANICAL DEVICES OR OTHER MEANS TO
ACCELERATE THE DEFROSTING PROCESS, OTHER THAN THOSE
RECOMMENDED BY THE MANUFACTURER.
• WARNING: DO NOT DAMAGE THE REFRIGERANT CIRCUIT.
• WARNING: DO NOT USE ELECTRICAL APPLIANCES INSIDE THE FOOD
STORAGE COMPARTMENTS OF THE APPLIANCE, UNLESS THEY
ARE OF THE TYPE RECOMMENDED BY THE MANUFACTURER.
Propane is approved for use as a refrigerant in commercial, self-contained units under limited
use conditions. It can be used in new equipment only, retrofitting is not allowed, with a limited
charge of up to 150 grams (5.3 oz) per refrigeration circuit. Even though this is a small
amount, it still presents a fire/explosion hazard if it leaks out of refrigerant containing parts.
When mixed with air, a flammable propane-air mixture can be created and easily ignited by
sparks, open flames, or hot surfaces. This is particularly true in confined zones. Propane is
heavier than air and tends to settle at lower points.
To mitigate the risk, please follow the precautionary measures as follows:
• Avoid unit installation in areas with open flames (kitchens, repair garages or the like), or
in vicinity of open flames or high surface temperatures.
• Avoid unit installation in confined spaces. Well ventilated areas are preferred. Keep clear
all ventilation openings of obstructions.
• Do not rely on smell to detect potential leaks of propane refrigerant. Propane refrigerant is
a high purity propane gas and does not contain any stanching agent(s). Stanching agents
are typically used in fuel-grade propane and natural gas to detect their presence in air by
relying on smell.
• All repairs must be performed in well ventilated areas.
• To minimize the risk of possible ignition due to incorrect parts or improper service, compo-
nent parts shall be replaced with like components and servicing shall be done by service
personnel authorized by Minus Forty Technologies Corp.
• Do not attempt to modify the unit or remove any functional part(s) from the unit.
• Handle the unit with care to avoid any damage.
• When transporting the unit, all appropriate safety considerations must be considered.
Check with local Department of Transportation for detailed requirements pertaining to
transportation of flammable gasses.

ILLUSTRATION: 13-USGR-F2, 19-USGR-F2, 22-USGR-F2
23

SAFETY PRECAUTIONS
READ ALL INSTRUCTIONS AND SAVE THESE INSTRUCTIONS FOR FU-
TURE REFERENCE.
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS
AND LIQUIDS NEAR THIS OR ANY OTHER APPLIANCE.
DO NOT TOUCH COLD SURFACES WITH DAMP OR WET HANDS. SKIN
MAY STICK TO EXTREMELY COLD SURFACES.
DO NOT ALLOW CHILDREN TO CLIMB, HANG OR STAND ON REFRIG-
ERATOR SHELVES.
KEEP FINGERS OUT OF PINCH-POINT AREAS.
DISCONNECT POWER TO THE UNIT PRIOR TO CLEANING OR
REPAIRING.
BEFORE DISCARDING THIS OR ANY OTHER APPLIANCE, REMOVE THE
DOORS OR LIDS TO REDUCE RISK OF CHILD ENTRAPMENT.
WHEN RECYCLING THE UNIT, REFRIGERANTS MUST BE HANDLED IN
ACCORDANCE WITH LOCAL AND NATIONAL REGULATIONS.
NOTICE
OPERATING THE REFRIGERATOR FOR 24 HOURS PRIOR TO LOADING
PRODUCT IS RECOMMENDED
MONITOR REFRIGERATOR TEMPERATURE REGULARLY
WARNING
IN THE EVENT THE POS TERMINAL AND THE ELECTRONIC SAFETY LOCK
HAS LOCKED THE REFRIGERATOR AND DISABLED ACCESS MODE, THE
FOOD IN THE REFRIGERATOR MUST BE INSPECTED TO INSURE ITS
SAFETY AND QUALITY FOR CONSUMPTION.
PARTS LIST: 13-USGR-F2, 19-USGR-F2, 22-USGR-F2
No Description
1 not used
2 not used
3 Door Switch
4 Heater Breaker Seal (Bottom/Top)
5 LED Driver
6 Pilaster
7 Basket
8 Door Assembly (Right or Left Hand)
9 Pilaster Clip
10 Shelf
11 Interior Back Grill
12 Bottom Shelf
13 Torsion Pin
14 Rear Grill
15 Door Handle
16 Leveling Leg
17 Caster
18 Front Bottom Grill
19 Door Top Bracket (Right or Left)
20 Bushing, Nylon
21 Door Bottom Bracket (Right or Left)
22 not used
23 Evaporator Coil
24 Evaporator Tray
25 Evaporator Shroud
26 Evaporator Fan
27 PTC Relay (19/22USG)
28 Run Capacitor (19/22USG)
29 not used
30 Start Capacitor (13USG)
31 Overload Protector (13/19/22USG)
32 Start Relay (13USG)
33 Fan Blade (Condensing Unit)
34 Fan Motor (Condensing Unit)
35 Compressor
36 Filter Drier
37 5 Pole Terminal Block
38 Controller
39 Rocker Switch
22
WARNING
MAKE SURE THE REFRIGERATOR IS DISCONNECTED FROM THE POWER
SUPPLY BEFORE ANY SERVICE. PRESS THE REFRIGERATOR SWITCH TO
THE “OFF” POSITION THEN UNPLUG THE POWER CORD FROM THE ELEC-
TRICAL RECEPTACLE.
ALL SERVICE WORK MUST BE PERFORMED BY CERTIFIED, FACTORY AU-
THORIZED SERVICE PERSONNEL ONLY. COMPONENT PARTS MUST BE
REPLACED WITH LIKE COMPONENTS.
COMMERCIAL USE ONLY. NOT FOR HOUSEHOLD USE.
FOR INDOOR USE ONLY.
No Description
40 Compressor Relay
41 Power Cord-UK / IRELAND
Power Cord - EUROPE
Power Cord - AUS / NZ
42 Nylon Washer
43 Torsion Bar
44 not used
45 not used
46 Condenser Coil
47 Condensate Tray Assembly
48 not used
49 Pressure Relief Ball
50 Heater Breaker Seal (LED)
51 Cabinet LED Strip
52 not used
53 not used
54 Lock Cover
55 Camlock
56 Lock LSIB
57 Lock Release Pin
58 Lock Release Spring
59 Lock
60 Lock Latch
61 Lock Pushbutton
62 not used
63 not used
64 not used
65 not used
66 Backup Battery
67 Battery Holder
68 Wire Cover (POS Terminal)
69 Handle Bracket (POS Terminal)
70 Bezel (POS Terminal)
71 RS-485/232 Converter (POS Terminal)
72 RJ34/RS-232 Harness (POS Terminal)
73 Mounting Base (POS Terminal)
74 Door Wire Harness (POS Terminal)
75 Controller Wire Harness (POS Terminal)
76 LED Driver (POS Terminal)

ILLUSTRATION: 13-USGR-L2, 19-USGR-L2, 22-USGR-L2CONTENTS
21
Warranty
Installation Instructions
Power Requirements
Protective Door Film
Shelf and Basket, Placement and Adjustment
Shelf Load Limit
Operating Instructions
Product Loading
How to Remove the Front Bottom Grill
Temperature Adjustment and Switch Functions
M44D Controller Alarms and Signals
M44D Controller Symbols and Functions
Condenser Cleaning
Cabinet Cleaning
POS Terminal & Electronic Food Safety Lock
General Description
Backup Battery (UPS) Operation
Entrapment Lock Release
Restocking Delay
Accessing / Resetting Alarm Data
Field Testing of the Food Safety Lock
ISD Translight LED Strip Replacement
Interior LED Strip Replacement
Troubleshooting Guide
Parts List (13/19/22-USGR-L2)
Illustration (13/19/22-USGR-L2)
Parts List (13/19/22-USGR-F2)
Illustration (13/19/22-USGR-F2)
Wiring Diagram (USGR-L2, USGR-F2 Models)
1
2
2
2
3
3
3
4
5
5
6
7
8
8 - 9
10
10 - 11
12
13
13
13 - 14
15
16
17
18 - 19
20
21
22
23
24

STANDARD WARRANTY FOR MINUS FORTY®
REFRIGERATION EQUIPMENT AND ACCESSORIES
LIMITED WARRANTY
Minus Forty®Technologies Corp. warrants its products to be free from defect as
to workmanship and materials for a period of twelve (12) months from the time
of delivery.
Minus Forty®Technologies Corp. will at its option either replace or repair any de-
fective parts returned within twelve (12) months of the time of delivery, transpor-
tation charges prepaid, which Minus Forty®Technologies Corp. in its sole
discretion, determines to be defective.
This warranty shall not apply to any products that have been repaired or altered
outside of Minus Forty®Technologies Corp.’s factory or repair facilities if the re-
pairs in the judgement of Minus Forty®Technologies Corp. have affected the reli-
ability or wear of the product and nor does the guarantee apply to any product
which has been subject to misuse, accident or to any product which has not been
maintained pursuant to the instruction of Minus Forty®Technologies Corp.
This warranty does not extend to any consequential damage caused by the failure
of the product under any circumstance and further, Minus Forty®Technologies
Corp. shall not be responsible for damage to the contents of the product or any
economic loss caused by the failure of the product, whether such loss is suffered
by the customer or a third party user of the product or whether the contents are
owned by the customer or a third party user or supplier.
Effective January 1, 1996
1
20
PARTS LIST: 13-USGR-L2, 19-USGR-L2, 22-USGR-L2
No Description
1 Display LED Strip
2 Top Display Assembly
3 Door Switch
4 Heater Breaker Seal (Bottom/Top)
5 LED Driver
6 Pilaster
7 Basket
8 Door Assembly (Right or Left Hand)
9 Pilaster Clip
10 Shelf
11 Interior Back Grill
12 Bottom Shelf
13 Torsion Pin
14 Rear Grill
15 Door Handle
16 Leveling Leg
17 Caster
18 Front Bottom Grill
19 Door Top Bracket (Right or Left)
20 Bushing, Nylon
21 Door Bottom Bracket (Right or Left)
22 not used
23 Evaporator Coil
24 Evaporator Tray
25 Evaporator Shroud
26 Evaporator Fan
27 PTC Relay (19/22USG)
28 Run Capacitor (19/22USG)
29 not used
30 Start Capacitor (13USG)
31 Overload Protector (13/19/22USG)
32 Start Relay (13USG)
33 Fan Blade (Condensing Unit)
34 Fan Motor (Condensing Unit)
35 Compressor
36 Filter Drier
37 5 Pole Terminal Block
38 Controller
39 Rocker Switch
No Description
40 Compressor Relay
41 Power Cord-UK / IRELAND
Power Cord - EUROPE
Power Cord - AUS / NZ
42 Nylon Washer
43 Torsion Bar
44 not used
45 not used
46 Condenser Coil
47 Condensate Tray Assembly
48 not used
49 Pressure Relief Ball
50 Heater Breaker Seal (LED)
51 Cabinet LED Strip
52 not used
53 Heater Breaker Door
54 Lock Cover
55 Camlock
56 Lock Status Indicator Board (LSIB)
57 Lock Release Pin
58 Lock Release Spring
59 Lock
60 Lock Latch
61 Lock Pushbutton
62 not used
63 not used
64 not used
65 not used
66 Backup Battery
67 Battery Holder
68 Wire Cover (POS Terminal)
69 Handle Bracket (POS Terminal)
70 Bezel (POS Terminal)
71 RS-485/232 Converter (POS Terminal)
72 RJ34/RS-232 Harness (POS Terminal)
73 Mounting Base (POS Terminal)
74 Door Wire Harness (POS Terminal)
75 Controller Wire Harness (POS Terminal)
76 LED Driver (POS Terminal)

for online reference go to minusforty.com
TROUBLESHOOTING GUIDE CONT...
Problem Possible Cause Action
Condensation on glass door. • Door not closing properly.
• Room humidity too high.
• Check the spring tension or any
obstruction
• To prevent condensation, room
humidity should be below 55%.
LED strips are not working. • Light switch is off.
• Faulty LED strip. • Check if the light switch is on. • Replace the LED strip. (See page 17)
Cabinet is noisy. • Part(s) loose
• Tubing vibrating
• Locate and tighten loose part(s).
• Ensure tubing is not in contact with
other tubing or components.
Door does not close tight. • Refrigerator is not leveled.
• Hinges are loose / not adjusted.
• Gasket is out of the groove.
• Level the unit (See page 2).
• Adjust / tighten the hinge screws.
• Check gasket condition. Adjust position
or replace gasket.
Electronic control blank,
flashing, or displaying incorrect
characters.
• Wires disconnected at back of
electronic control. • See actions described in the controller section (pages 5 - 7)
Evaporator fan does not run. • Fan wire disconnected.
• Door switch not working.
• Check wiring.
• Check door switch.
Alarms on electronic controller. • Various • See “M44D Controller Alarms and
Signals” section (page 6)
WARNING
Make sure the refrigerator is disconnected from the power supply before any service. Press the
refrigerator switch to the “Off” position then unplug the power cords from electrical receptacle.
All service work must be conducted by a certified technician only.
19
2
CABINET LOCATION: This appliance is rated for Climate Class (EN23953), Category 4 (30°C, 55%RH)
and is to be operated in an environment not greater than 30°C (86ºF) and 55% relative humidity.
An air space of at least 6” (15 cm) must be maintained on all sides of the refrigerator. Do not place
refrigerator in direct sunlight; do not place refrigerator under or near heat range or heating vent.
CABINET LEVELING: The refrigerator must be completely leveled side to side and front to back or
slightly tilted front to back but never tilted forward. Once the refrigerator is placed in its final location,
use a carpenter level to level the refrigerator. Proper leveling of the refrigerator is important for the
door closing and water drainage during the defrost cycle. There are two leg levelers in the front that
can be adjusted. First, loosen the nuts using an adjustable wrench. Second, turn levelers counter-clock-
wise to raise the refrigerator, or clockwise to lower, until they reach the leveled position. Lastly, tighten
the nuts again to lock the legs.
INSTALLATION INSTRUCTIONS
• DO NOT USE AN EXTENSION CORD
• DO NOT CUT, REMOVE OR BYPASS THE GROUNDING PRONG FROM THE PLUG
• DO NOT PLUG REFRIGERATOR INTO AN OUTLET CONTROLLED BY A WALL SWITCH
• ENSURE POWER CORD IS NOT CUT OR DAMAGED FROM PINCHING, KNOTTING, OR MISHANDLING
NOTICE:
Failure to follow these instructions may void the warranty and/or cause loss of product.
All models require a dedicated and properly grounded 230VAC/50Hz/1Ph circuit with a receptacle. Wir-
ing and breaker/fuse must be sized according to the amperage rating stated on the serial plate and ap-
plicable government and local regulations. Failure to use a dedicated circuit may cause the circuit
breaker to trip off and/or cause voltage drops. As a result, power to the refrigerator may be interrupted
and freezing performance can be adversely affected which may cause equipment damage and/or pro-
duct loss.
Voltage supply to the refrigerator must not vary more than ±6% of the nominal 230V, or performance
may be affected. The warranty and liability does not cover damage resulting from excessive voltage
variations.
WARNING
This appliance MUST be installed on a dedicated grounded circuit protected with a circuit breaker or a time
delay fuse. Do not remove ground prong. If the cord or plug is damaged, replace with the same type.
Refrigeration and electrical work must be performed by a qualified technician. Failure to follow these
instructions can result in injury, death, fire, or electrical shock.
POWER REQUIREMENTS:
The anti-fog glass door has a protective film on the inner side. After the
unit has been installed, peel and remove the protective film covering
the inner glass surface.
PROTECTIVE DOOR FILM REMOVAL

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TROUBLESHOOTING GUIDE
Problem Possible Cause Action
Refrigerator not operating. • Refrigerator switch located on the front
grill turned off.
• Fuse blown / circuit breaker tripped.
• Power cord unplugged.
• Receptacle not working.
• Improper voltage supplied to
cabinet / over load circuit.
• Turn power switch on.
• Replace fuse/reset circuit breaker.
• Plug in power cord.
• Check receptacle.
• Remove extension cords or other
equipment on the same circuit.
Refrigerator not getting cold
but compressor is
operating.
• Refrigerator located in direct sunlight or
ambient (room) temperature is too hot.
• Condenser clogged with dust.
• Move refrigerator away from direct
sunlight.
• Room temperature is recommended
not to exceed 86ºF (30ºC), 55% RH.
• See page 9 (Cleaning)
Condensing unit operating
for a prolonged period or
continuously.
• Refrigerator loaded with excessive
amount of warm product.
• Prolonged door opening or door ajar.
• Door not closing properly.
• Clogged condenser.
• Allow enough time for product
to cool down.
• Close door when not in use.
Avoid prolonged door openings.
• Level the unit (See page 2).
Check gasket condition.
Check the door spring.
• Clean the condenser (See page 8).
Refrigerator cabinet
temperature
too high.
• Electronic control set too high.
• Poor air circulation in cabinet.
• Insufficient clearance around cabinet or
ambient temperature too high.
• Clogged condenser
• Adjust control setting (See page 5).
• Follow instructions for product
loading (See page 4)
• Keep at least 6”(15 cm) free space
around all sides of the refrigerator.
Room temperature is recommended
not to exceed 86ºF (30ºC), 55% RH.
Make sure the air flow to the
compressor is not obstructed.
• Clean the condenser (See page 8)
WARNING
Make sure the refrigerator is disconnected from the power supply before any service. Press the
refrigerator switch to the “Off” position then unplug the power cords from electrical receptacle.
All service work must be conducted by a certified technician only.
Once the refrigerator is running, the inside temperature will start to cool down within a couple of mi-
nutes. Ensure that the refrigerator has reached the desired temperature (this will take between 2 to 3
hours) by checking the electronic control display readout before loading product. It is strongly rec-
ommended to run the refrigerator empty for 24 hours before loading any products.
NOTE:
If the refrigerator is running and the power supply is interrupted, the refrigerator will not
restart immediately. There is a 6 minute delay for compressor protection.
OPERATING INSTRUCTIONS
WARNING
Check with your power company if you are not certain of your power supply.
Before connecting to power supply the refrigerator should be upright and idle for at least 1 hour.
SHELF AND BASKET, INSTALLATION AND ADJUSTMENT
Metallic Clip ShelfShelfMolded Clip
The clips can be removed at any time if a new position is chosen for the shelf or basket. To remove,
grab the clip with your thumb and index finger, then push up the bottom surface until the clip is free.
Once the clips are in place, put the shelf on top. Once the shelves are securely in place, baskets (if
equipped) may be positioned on the shelves.
The refrigerator is supplied with shelves and molded or metallic clips. The refrigerator has slotted
pilasters to position the shelves according to the customer’s needs.
Once the unit has been installed and the power supply has been connected, press
the power switch to the “ON” position using a pen or pencil.
The compressor will start to run after 6 minutes. This can be confirmed by lis-
tening for a slight humming or a slight vibration.
18 3
Model Maximum Load (Kg) Maximum Load (lb)
13-USGR 30 66
19-USGR 42 92
22-USGR 49 108
SHELF LOAD LIMIT
WARNING
Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.

DO leave at least 6” (15 cm) free space between the
fan and the product for air circulation.
DO NOT stock any products against the
evaporator fan. See load limit labels inside
the cabinet for reference.
DO NOT block the air space behind the grill.
Free space is required for proper air circulation.
AVOID removing the bottom shelf from the inner
bottom.
DO NOT overstock the unit.
PRODUCT LOADING
For enhanced performance of the unit and to avoid spoilage
of perishable products, follow these instructions:
NOTICE:
Ensure the refrigerator has reached the proper operating temperature before loading product.
The electronic control displays the interior cabinet temperature.
Product loss is not covered under warranty.
Remove silicone corner beads.
Pry the screwdriver between
plastic cover and cabinet frame.
Pry from one end to the other.
Pry the screwdriver between
plastic lens cover and cabinet
frame.
Locate the wire for the LED
strip in the compressor com-
partment and disconnect from
connectors.
Carefully remove the plastic
lens cover from cabinet frame.
Install the new LED strip into
the plastic cover.
Attach wires, observing color
coding. Press lens cover back
to cabinet frame.
INTERIOR LED STRIP REPLACEMENT
Plug the unit in and make sure
the light switch on the
bottom grill is in the ‘ON’
position.
WARNING
Make sure the unit is disconnected from the power supply before any service. Press the
power switch to the “Off” position then unplug the power cord from electrical receptacle.
All service work must be conducted by a certified technician only.
Slide faulty LED strip from
plastic cover.
Snap plastic cover back to cab-
inet frame. Apply silicone at
plastic cover corners.
174