minus40 D40SSH User manual

D40SSH, D60SSH, D115SSH,
D150SSH Mobile Refrigerator
Congratulations on your new Minus40 Refrigerator!
This premium product incorporates the latest innovations in
refrigeration technology with a highly durable design. Properly
maintained, the unit(s) will provide many years of reliable service.
MINUS 40
MINUS40 (PTY) Ltd Head Office: 8 Manhattan Street | Airport Industria Ext 2 | Western Cape
Tel: [phone] | E-mail: [email protected].za
MINUS40 Instruction Manual Mobile Fridge/Freezer
SAFETY INSTRUCTION
• Always disconnect the unit from the mains supply before
attempting to do maintenance or before removing the bottom
grille.
• In case of unit failure, disconnect it from the power supply and
contact your service technician or supplier for advice.
• If the supply cord is damaged it must be replaced by the
manufacturer or its service agent or a similarly qualied person
to avoid a hazard.
CLEANING INSTRUCTIONS
Interior and Exterior Cleaning
• Please ensure that the unit has been disconnected from the
electricity supply.
• The unit should be cleaned periodically with a non-abrasive
cleaner and soft cloth.
• Do not use any detergents or abrasive
• A damp cloth may be used provided that all surfaces are polished
dry afterwards.
In the event of the unit not being used for extended periods;
• Disconnect from the power supply.
• Remove all the stock
• Thoroughly clean the unit inside and out.
• Leave the lid slightly open so that air can circulate freely.
• Switch the unit back on & wait until temperature has stabalized
before loading
OPERATING INSTRUCTION GUIDE
Follow these easy steps to Install your new Minus40 unit.
• Set the desired temperature on the thermostat.
Note: Temperature can only be set between +10°C and - 20°C.
• The lower the temperature the greater the power consumption.
• Leave the unit switched on for 8 to 10 hours before stocking to
allow the temperature to drop down to operating temperature.
• The maximum ambient temperature in which the unit will function
is 32°C.
• Always close the door properly and do not overstock the unit.
Please read the following instructions carefully as it contains
important information concerning the safety, installation, operation and
maintenance of your Refrigerator.
POWER SUPPLY
DO NOT CONNECT THE UNIT TO THE MAINS SUPPLY UNTIL YOU
HAVE READ THE FOLLOWING INFORMATION.
• The Mobile refrigerator can be used on 12/24V DC. If the unit is
require to run on 110 -220V/AC, the correct power supply cord
for 220V is required.
• The power supply should be per the electrical specications
listed on the rating plate. The rating plate can be located inside
the unit on the top right-hand side.
• For short periods of operation a connection may be made directly
to the vehicle’s electrical system.
• As a precaution it is recommended that the unit bee swithced
off when the vehicle engine is switched off. This can be done by
unplugging the lead from the plug socket, or by switching off the
unit at the themostat (set to 0°C).
• An inadequate electrical installation can result in voltage
reduction at the compressor or cause damage to the motor.
• If in doubt about any of the electrical matters mentioned above, a
suitably qualied electrician should be consulted.
12/24 VOLT OPERATION
• Set the desired temperature on the thermostat.
Note: Temperature can only be set between +10°C and - 20°C.
• The battery will require re-charging periodically. This can be
done using a charger operating from the mains, or by using a
vehicle’s electric system. A 100AH deep battery is recommended
to operate the unit. This size battery will operate the unit
continuously for app. 17 hours without charging.
• If the unit is to be used mainly in a vehicle, then its recommended
that an additional battery be tted for the use solely of the freezer.
The additional battery should be located close to the freezer.
This will prevent the additional drain on the vehicle’s main battery
which could prevent the vehicle from starting.
• The additioanal battery should be connected into the vehicle
electrical charging system by a competent Auto Electrician.
It may be necessary to t a second charging regulator to the
electical system. all 12 Volt electrical wiring should be carried out
according to the following table:
Table 1
Cable length (Up to) Wire cross sectional area in mm²
2.5 meters 2.5 mm²
4.0 meters 4.0 mm²
6.0 meters 6.0 mm²
10 meters 10 mm²
16 meters 16 mm²

100 - 240V AC
50V60Hz
Fuse Main Switch
Power Supply
-
+
Main Switch
Fan
LED +
-
Thermostat
R1
R2
-
-
-
+
F
A
C
D
C
P
T
L
N
101N0500
o
MINUS 40
MINUS40 (PTY) Ltd Head Office: 8 Manhattan Street | Airport Industria Ext 2 | Western Cape
Tel: [phone] | E-mail: [email protected].za
MINUS40 Instruction Manual Mobile Fridge/Freezer
TEMPERATUR SETTING GUIDELINE
PRODUCT STORAGE TIME TEMPERATURE
※Uncooked meat ※1 to 2 days
※8 to 10°C degrees
※Milk & Dairy products ※2 to 3 days
※5 to 8°C degrees
※Vegetables ※+7 days
※5 to 9°C degrees
※Frozen meat & poultry ※up to 7 days
※-6 to -2°C degrees
※Pre-prepared food ※Not exceeding 30 days
※-15 to -12°C degrees
WIRING DIAGRAM
SAFETY INSTRUCTION
• All plugs and switches in the circuit should have a 20Amp DC
rating and wiring should have a cross section area of not less
than 2.5mm.
• A separate earth (Negative) wire should run the fridge to the
auxiliary battery, and NOT earth to the vehicle body.
• The wire should be the same thickness as the positive wire.

MINUS 40
MINUS40 (PTY) Ltd Head Office: 8 Manhattan Street | Airport Industria Ext 2 | Western Cape
Tel: [phone] | E-mail: [email protected].za
MINUS40 Instruction Manual Mobile Fridge/Freezer
Table 1. FAULT FINDING
FAULT POSSIBLE REASON CORRECTION
Compressor does not run
Flashes once every 4 Seconds
• Battery protection cut-out due to too low voltage supply
• Battery charge low
• Check the wiring thickness as per the manual
• Check for loose connections in the plugs or leads.
Compressor does not run
Flashes Twice every 4 Seconds
• Fan motor high current cut-out due to too many start
attempts or fan over current or fan current higher than 0.5A
• Check for low battery and re-charge, with fridge disconnected with
battery.
Compressor does not run
Flashes Three times every 4
Seconds
• Motor start error due to a blocked rotor or the differential
pressure in the refrigeration system is too high (+5bar)
• Disconnect fan at F.
• If the problem goes away, replace the fan.
• If the problem persists, contact the Minus40 service team
Compressor does not run
Flashes Four times every 4
Seconds
• Minimum motor speed error due to refrigeration system
to heavily loaded or the motor cannot maintain minimum
speed at approximately 1.80rpm
• Switch the unit off for 15 minutes to allow differential pressure to
equalize in the refrigeration system. Then, restart the fridge/freezer
Compressor does not run
Flashes Five times every 4
Seconds
• Thermal cut-out of the electronic unit due to fridge/freezer
being loaded too heavily or too high ambient temperature.
• Check that the fan is working
• Check that the ambient temperature does not exceed 55°C.
• Pre-cool the unit before loading.
Compressor does not run
Flashes Six times every 4
Seconds
• Thermostat failure if the NTC thermostat has a short-circuit
or has no connection.
• Contact the Minus40 service team
Compressor does not run and red
LED Does
• Faulty thermostat with a loose connection at T or C
• Wrong polarity
• Fault at speed regulating resistor
• Replace the thermostat
• Check that Positive of the battery is connected to the red wire and
the negative to the black wire
• Replace with 820-ohm resistor or temporarily replace the resistor
with a conductor.
No OR reduced cooling capacity • Gas leakage or blockage in the refrigeration system
• Faulty fan motor
• Contact the Minus40 service team
• Replace fan motor.

MINUS 40
MINUS40 (PTY) Ltd Head Office: 8 Manhattan Street | Airport Industria Ext 2 | Western Cape
Tel: [phone] | E-mail: [email protected].za
MINUS40 Instruction Manual Mobile Fridge/Freezer
CONDENSER CLEANING
Always follow these steps when cleaing the unit condenser.
Remember the Voltage Protector
The Refrigerator must always be connected to a voltage protector
supplied. If neglected the warranty will be void.
Power off
Unplug the unit from the mains
electricity supply.
Remove
the Grille
Remove the bottom grille
underneath the door(s) by lifting
slightly and pull away from the
retaining handle.
CAUTION: Some pipework &
components might be hot
Locate
Condenser
Locate the condensor next to,
and attached to, the fan.
*It looks similar to a car radiator
Soft Brush
Take a soft brush and clean
the ns.
CAUTION: The condensor is
very delicate
• Do not to bend the ns.
• Never poke anything
through the ns
• Never use water
• Never use a hard brush
Vaccuum
If possible, use a vaccuum to
clean away the debris.
Check the rest of the
compartment for any foreign
objects and remove.
Remove Tools
Ensure that all tools have been
removed.
Voltage
Protector
Plug the unit back in to the
mains electricity supply.
Ensure that the voltage
protector is in use.
Listen to ensure the unit runs
normally.
Log the Data
Log the date of the cleaning
and make a dairy note to clean
it again in 2 to 3 months
1
2
3
4
5
6
7
8
Why Clean the Condenser?
The function of the condenser is to dissipate the heat from within the
fridge/freezer. By keeping the ns clear of dust, the unit will run more
effectively with lower energy consumption and a longer product life.

MINUS 40
MINUS40 (PTY) Ltd Head Office: 8 Manhattan Street | Airport Industria Ext 2 | Western Cape
Tel: [phone] | E-mail: [email protected].za
MINUS40 Instruction Manual Mobile Fridge/Freezer
CONDENSER CLEANING SCHEDULE
Please indicate the DAYS that the condenser is cleaned on the chart
Date cleaned marked with an ‘X’
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
• Clean the condenser with a soft brush
• Check the condenser monthly
• If there is dirt of uff on the condenser clean as above
• Mark the chart above with a cross on the DAYS that the condenser is cleaned