minus40 MED540HD User manual

Version160817 TC900E V7
Minus40 is ISO9001:2008 Certified
MINUS 40 (PTY) Ltd , 44 Manhattan Street, Airport IndustriaExt 2, Western Cape, Republic of South. Africa
PO. Box 254, Eppindust 7475, Republic of South Africa Tel:[phone] Fax: [phone]
Email: [e-mail] Web: www.minus40.co.za
Minus 40 (Pty) Ltd Reg. No. 89/03489/07 - Vat Reg No: 4090105521
Minus 40 Directors: S E Davison. D N McMurray. Michael Werner
MANUAL FOR MED540HD UPRIGHT REFRIGERATOR
PLEASE NOTE: THE VACCINE REFRIGERATOR WILL IMMEDIATELY GO INTO A DEFROST AFTER BEING POWERED ON
Thank you for choosing a Minus 40 Pharmacy Refrigerator. We have supplied you a premium quality product, which
incorporates the latest innovations in refrigeration technology. Properly maintained, it will give you many years of
reliable service. Please read the following instructions carefully as it contains important information concerning the
safety, installation, operation and maintenance of your Refrigerator.
SAFETY
Always disconnect the appliance from the mains supply before attempting to do any maintenance,
cleaning, or moving of the refrigerator.
In case of appliance 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
qualified person in order to avoid damage to the refrigerator or risk to the user.
Any service performed on these refrigerators within agreed warranty period MUST be reported and approved by
Minus40. Failure to do this will void the standard warranty.
INSTALLATION
Do a visual check of the unit to check for transport damage. Immediately report any damage to the transporter &
supplier of the refrigerator.
Remove all wrapping and packing material. Remove stacking blocks/pallet underneath the cabinet chassis.
oBe careful not to damage any of the delicate wiring or pipe-work in the compressor compartment.
Unpack the front grille and hook it onto the refrigerator base with the louvers facing downwards.
oPosition the cooler out of direct sunlight and as far away as possible from any other sources of
heat.
The maximum ambient temperature in which the cabinet will function is 44 Deg C.
The cabinet may be built into a furnishing fixture, or have its back to the wall, provided that the front grille
is totally unobstructed.
The cabinet “breaths” through the front grill.
oIf it is blocked up, the cooler will not operate properly and you risk damaging the compressor.
Level the appliance by rotating the adjustable feet at the corners of the refrigerator.
The cabinet must be perfectly level in order for the door (s) to function properly, use a spirit level to check.
On hinged door refrigerators the door may be refitted to have its hinges on the left hand side and its
handle on the right hand side.
First make sure the cooler is not connected to the electricity supply.
Remove ALL shelves, clips and products from the inside so not to damage the glass door. Then lay the
refrigerator on its back. Release the hinge pin nuts. Unscrew the bottom hinge plate and carefully remove the
door. Remove the top hinge pin and fit it at the other side. Rotate the door 180°C. Refit the door hinge pins and
screw the bottom hinge plate to the opposite side. Lock the bottom hinge pin nut with about 90°C torsion on
the torsion bar. Return the cabinet to the upright position.

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Do not connect the appliance to the mains supply until you have read the following information.
ELECTRICAL CONNECTIONS
A qualified person in accordance with all local standards and regulations should carry out any electrical
alterations to the appliance.
The power supply should be in accordance with the electrical specifications listed on the rating plate.
oThe rating plate can be located inside the cooler on the top right hand side.
Always ensure that the electrical connection is suitably earthed.
oAn inadequate electrical installation can result in voltage reduction at the compressor which can
cause damage to the motor.
If in doubt about any of the electrical matters mentioned above, a suitably qualified electrician should be
consulted. When all of the electrical requirements have been satisfied, the cooler may be plugged into the
mains socket.
Before replacing the light tubes make sure the appliance is switched off and disconnected from the mains
supply. Remove the transparent light covers by pulling outward. Carefully pull off the electrical connections
from the tube ends. Replace with new tube with same dimensions and wattage and reconnect electrical
push-on terminals. Refit the transparent cover by hooking it back into position. It is recommended to leave
the lights switched on at all times (especially in high relative humidity areas). It not only prolongs the
lifetime of the light tubes, but also reduces risk of condensation in some areas. From an electrical efficiency
and safety point of view, we do not use electric elements to heat up any areas on our products. Some
components are specifically situated to utilize their heat transmission.
OPERATING INSTRUCTIONS
When loading the Refrigerator, always ensure that you do not block the internal air vents and always allow
space for the cold air to circulate around the contents and the inside of the cooler.
oThe Refrigerator is designed to automatically evaporate the condensate water in the compressor
compartment.
CLEANING
Before carrying out any cleaning please ensure that the refrigerator has been disconnected from the
electricity supply. The refrigerator should be cleaned periodically with a non-abrasive cleaner and soft
cloth. Do not use any detergents or abrasive powders. A damp cloth may be used provided that all surfaces
are polished dry afterwards.
PLEASE READ AND FOLLOW THE INSTRUCTIONS FOR CLEANING YOUR CONDENSER ON LAST PAGE
PLEASE FILL IN: “VACCINE REFRIGERATOR CONDENSER CLEANING SCHEDULE”.
MAINTENANCE
Before carrying out any maintenance or repair work, please ensure that the cooler has been disconnected
from the mains supply.
To maintain maximum operating efficiency and to prolong the life of your cooler, the condenser must be
cleaned regularly (at least once every 2 months).
In dusty environments, cleaning should be done more frequently. The condenser looks like a radiator and it
is located behind the bottom front grille. To remove the grille, lift each end slightly and then pull towards
you. The condenser will be easily visible and can be identified by the large fan that is attached to it.
Carefully clean the air intake side (left side) of the condenser with a soft brush so that all the dust is
removed. The suction pipe of a vacuum cleaner is ideal for the job. Please note that the condenser is a
delicate component.
•Never use a sharp object to clear obstructions because you risk a gas leak which will be expensive to repair.
IN THE EVENT OF NOT USING THE REFRIGERATOR FOR EXTENDED PERIODS
oDisconnect from the power supply

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oRemove all the products from the storage compartment
oThoroughly clean the cabinet inside and out
oLeave the door slightly open so that ambient air can circulate freely in and out of the refrigerator.
TROUBLE SHOOTING –REFRIGEARTOR NOT COOLING
Note: some models have only one evaporator fan motor.
Symptom
Check
Fridge does not run and the
controller and the fans does
not work and the lights are off.
Make sure the fridge is plugged in
Check for a tripped circuit breaker
Fridge does not run, but the
controller is on.
Check the temperature setting on the controller
Clean the condenser coils
Unplug the fridge, wait two hours and plug it in. If you hear it running, a
problem is causing the compressor to overheat
Check if the evaporator fan is running
Listen if the compressor ever runs. If not the compressor might be faulty.
Fridge is not cold enough
Check the temperature setting
Assure that there is enough room for air flow in the fridge.
Check if the evaporator coil is iced-up, and if it is put the unit in a manual
defrost as noted under MANUAL DEFROST.
Check for air flow restrictions in front and at the back of the grille.
Clean the condenser coils
Check the door seal
Fridge is too cold
Check the temperature setting
Fridge is noisy
NOTE: Soft hissing and popping is normal.
Check that the fridge is level
Check the drain pan
Check the condenser fan (1)
Check the evaporator fan (2)
Fridge runs continuously
Clean the condenser coils (1)
Check the door seals
IN THE EVENT OF A BREAKDOWN
Disconnect the refrigerator from the power supply. Contact your supplier for advice.
TEMPERATURE CONTROL
Minus40 vaccine refrigerators regulates air temperature to control the product (vaccine) temperature.
The running temperature of the refrigerators is factory pre-set at a range between 2°C to 8°C air temperature. It
is factory pre-set with a built-in defrost sequence of 10 minutes every 3 Hours to remove ice build-up from the
evaporator coil. During these defrost cycles air temperature can exceed 8°C for a short time, but product
temperature will remain in the safe vaccine temperature range between 2°C to 8°C.
FOR FRIDGE TEMPERATURE MONITORING ADVICE PLEASE SEE THE LINK BELOW:
http://www.minus40.co.za/wp-content/uploads/2016/11/Fridge-temperature-monitoring-advice.pdf
Avoid setting the controller too cold.

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If you do, you risk freezing up the evaporator, blocking the airflow and eventually a subsequent malfunction of the
system. The refrigeration system needs to cycle (temperatures above 0 Deg C) to be able to defrost automatically.
Switch on temperature (5°C) is 2 degrees above set (switch off; 3°C) temperature.
1. SET POINT: 3°C

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Minus 40 Vaccine refrigerator Condenser cleaning schedule
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 ( Radiator) with a vacuum cleaner or soft brush. Check the condenser monthly If there is dirt of fluff on the condenser clean as above Mark the chart above with a cross on the DAYS that the condenser is cleaned

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