Viessmann TectoRefrigo WMC1 User manual

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regarding a certain purpose always require a special written agreement.
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Refrigeration units
with thermostatic control
TectoRefrigo WMC1
TectoRefrigo WMF1
Assembly manual
6008518-02 GB
Please read carefully the following prior to beginning work on the refrigeration unit:
Assembly, maintenance, cleaning and repair may only be Work on the refrigeration unit may only be carried out if the plug
done by companies specialising in refrigeration technology. is removed from the power supply. Suitable warnings must be
posted to prevent the refrigeration unit from being restarted while
Technical changes and manipulation are prohibited. work is in progress. The regulations of VDE 0105 Part 1 - for work
on electrical equipment must be observed.
In case of non-compliance our guarantees are void.

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regarding a certain purpose always require a special written agreement.
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Table of contents
1. Description
1.1 Deep-freeze unit
TectoRefrigo WMF1 0900, WMF1 1400, WMF1 1800, WMF1 2400
1.2 Refrigeration unit
TectoRefrigo WMC1 0500, WMC1 0900, WMC1 1300, WMC1 2000, WMC1 2800
2. Conditions of guarantee
3. Installation space
4. Energy savings
5. Norms and regulations
6. Doorswitch
7. Cleaning and maintenance of the refrigeration unit
8. Disposal of refrigerant
9. Operation of control
9.1 Temperature control
9.2 Humidity switch
9.3 Defrosting
9.4 Refrigeration units TectoRefrigo WMF1
9.5 Refrigeration units TectoRefrigo WMC1
9.6 Storage
9.7 Deactivating refrigeration unit
9.8 Operation of defrosting timer
10. Trouble shooting
11. Recommended storage values for coldrooms
12. Recommended storage values for deep freezers

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3. Requirements for installation area / Intended use
- The area of installation must be well ventilated and may
not be heated.
- Direct heat radiation on the refrigeration unit must be
avoided. This could result in higher use of energy.
- For economical operation the ambient temperature
should be between +5°C to +25°C.
- There must be sufficient space in front of the ventilation
openings to guarantee proper ventilation: at least 250
mm in front of all suction and exhaust openings.
- According to BGR 500, chapter 2.35 or local regulations
for operation and maintenance. (qualified staff)
4. Energy savings
- Do not install refrigeration unit near any source of heat;
high temperatures in the surroundings cause the
refrigeration unit to switch on too often.
- Direct sunlight increases energy use.
- Avoid unnecessary and long opening of the door.
- Monitor storeroom temperature.
- Clean refrigeration unit regularly. Clean equipment saves
energy and increases life time.
- Observe cleaning intervals (See section „Cleaning and
maintenance of refrigeration unit“). Regular
maintenance prolongs product life.
5. Norms and regulations
At the time of its production, the refrigeration unit was
manufactured and inspected according to valid norms
and regulations.
It complies with the
EMC Directive 2004/108/EC,
machinery directive 2006/42/EG.
The unit has been inspected at the factory for refrigeration
circulation leakage and for function.
1. Description
1.1 Deep-freeze unit
TectoRefrigo WMF1 0900, WMF1 1400, WMF1 1800,
WMF1 2400
The equipment is designed for cooling of refrigeration
rooms in which goods are stored between -1°C to -25°C.
1.2 Refrigeration unit
TectoRefrigo WMC1 0500, WMC1 0900, WMC1 1300,
WMC1 2000, WMC1 2800
The equipment is designed for cooling of refrigeration
rooms in which goods are stored between +3°C to +19°C.
2. Conditions of guarantee
- Within the period of guarantee, defects resulting from
poor workmanship or materials problems will be repaired
free of charge.
- Other claims, in particular for follow up damages are
excluded.
- Damage and functional problems caused by improper
handling or non observation of operating instructions,
are not covered by guarantee.
- The guarantee is invalidated if the cooling circulation
system is opened by unauthorized personnel, if there is
interference in the system, of if the serial number on the
machine is changed or rendered unreadable.

GB
General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
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6. Doorswitch
lf a doorswitch is installed on the unit using the multiple
pole plug, the separating clamp (R) between sections 15
and 16 on the thermostat must be pulled. To do this the
front panel of the refrigeration unit and the cover strip on
the thermostat housing must be removed.
7. Cleaning and maintenance of the refrigeration unit
Attention!
When cleaning work is being done, remove the plug
from the power supply and ensure that it cannot be
reinserted until the work is done.
- The refrigeration unit should be inspected periodically
and cleaned if necessary. Depending on the degree of
cleaning necessary, the time until the next inspection
must be determined. The intervals between cleaning
depend on the conditions of the surroundings.
- The condenser and evaporator can be cleaned either
with a soft cleaning brush, by compressed air, or in case
of oil deposits, using a compressed air cleaner. Do not
use any pointed or sharp objects. The fins may also not
be bent or damaged.
8. Disposing of coolant
lf the refrigeration unit must be replaced by another
one, ensure that the pipes on the refrigeration unit are
not damaged, allowing coolant to be released.
Defective refrigeration units must be disposed of in
an environmentally friendly manner observing the
regulations applying.
R

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9. Operation of control
9.1 Temperature control (A)
The temperature in the coldroom is regulated using the
knob of the thermostat.
9.2 Humidity switch (B)
Using this switch. the relative humidity in the coldroom can
be regulated by controlling the running time of the
evaporation ventilator.
+ The evaporation ventilator runs together with the
condenser. Low relative humidity.
- Evaporation ventilator runs permanently.
High relative humidity.
9.3 Defrosting (C)
The defroster light is on during defrosting.
Defrosting can be set for a particular defrost cycle and
defrost time.
9.4 Refrigeration units TectoRefrigo WMF1
The electrical defrosting system is switched off by a
temperature safety switch when the appropriate defrosting
temperature is reached and the refrigeration unit returns to
normal cooling operation when the defrosting time set has
elapsed.
9.5 Refrigeration units TectoRefrigo WMC1
Defrosting is done by air circulation.The compressor and
condensation ventilators are not in operation, and the
evaporator is running. The refrigeration unit returns to
normal cooling operation when the defrosting time set has
elapsed.
C
A
B
D
9.6 Storage
When the desired storage temperature has been
reached in the coldroom, the refrigerated goods can be
brought in. Then the temperature in the coldroom
should be checked again, and corrected using the knob
on the thermostat.
Note:
So that the temperature does not rise too far, warm
products should be cooled off to room temperature (20 °C)
prior to storage.
9.7 Deactivating refrigeration unit (D)
lf the coldroom is to be taken out of operation, turn off
the ON/OFF switch.
lf the coldroom is to be out of operation for longer
periods, or for maintenance and cieaning work, the
plug should also be pulled to separate the coldroom
from the power supply.

GB
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regarding a certain purpose always require a special written agreement.
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9.8 Operation of defrosting timer
Attention!
Prior to working on the timer, remove refrigeration
unit plug from power source!
The defrosting timer is accessible when the front plate of
the refrigeration unit is removed, as well as the thermostat
knob and the cover of the regulator housing.
Manual initiation of the procedure:
Turn the left disc clock wise until the switch lever next to
the switch stop. Defrosting will start and will stop after the
period of time set on the right disc.
Setting defrosting time:
Left disc with red or yellow switch levers:
- Determine intervals in hours at which the defrosting,
will be started.
Right disc with green switch levers:
- Determine length of defrosting time in minutes.
- For deep freeze units, a second switch lever will be
mounted on the right disc at an interval of 3 minutes to
the first to delay switching on.

GB
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regarding a certain purpose always require a special written agreement.
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Problem
Refrigeration unit is
not running
Unit is constantly
running
Unit runs constantly and
evaporator has ice
deposits
Cause
Plug not inserted
Power supply interrupted
Regulator defective
Coldroom is filled to capacity
There is too much in store, or the
goods are too warm, or the door
of the coldroom has been open too
long.
Ambient temperature too high.
Suction and exhaust vents are
blocked, and the heat cannot be
released.
Evaporator is dirty.
Condenser is dirty.
Door has been open too long.
Uncovered fluids are stored in the cell.
Defrosting cells are not optimum.
Remedy
Check plug and fuses.
If no problem is found, contact specialist.
Store less, or at a higher temperature (Observe
storage dates and shelf-life of stored goods).
Store less, or allow warm goods to cool-off
to room temperature before storage.
Lower ambient temperature.
Maintain minimum free space of 250 mm in
front of all openings.
Clean fins with brush and vacuum cleaner.
Attention! Do not bend fins.
Open door only for brief intervals.
Cover fluids.
Initiate manual defrosting.
If necessary, shorten the defrosting cycle, or,
if the evaporator is still icy after defrosting
cycle, extend defrosting time (9.8).
For refrigeration units for above-zero applications,
switch humidity switch to (+) (9.2).
10. Troubleshooting

GB
General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page No. 6008518-02 GB Right reserved to make technical changes! Valid 03.17
11. Recommended storage values for coldrooms 12. Recommended storage values for deep-freezers
(recommended standard values) (recommended standard values)
Values taken from ‚Pohlmann‘,
Pocketbook on Refrigeration Technology, Vol. 2;
Breidenbach, Refrigeration Spezialist, Vol. 1
Stored goods Temperature
in °C
Relative
humidity
in %
Meat
Fresh meat -1/+1 85 - 90
Cooked sausage +1/+3 80 - 85
Fresh poultry -1/+1 85 - 90
Fresh vension -2/+2 70 - 85
Fish
Fish, fresh from ice 0/+1 90 - 100
Conserved fish 0/+1 75 - 80
Milk and dairy products
Milk 0/+2 80 - 85
Butter -1/+4 75 - 80
Soft cheese 0/+2 80 - 85
Swiss cheese +2/+4 70
Vegetables
Lettuce 0/1 85 - 90
Cauliflower -1/0 90
Ripe tomatoes 0/+1 80 - 90
Spinach -1 90
Cucumbers 0/+4 85
Asparagus +1 85 - 90
Fruit
Apples -1/+3 90 - 95
Pears -1/+2 85 - 90
Cherries -1/+1 90
Strawberries -1/+1 90
Bananas +12 85
Stored goods Temperature
in °C
Relative
humidity
in %
Meat
Frozen meat -15/-18 85 - 90
Frozen innards -15/-18 85 - 90
Fresh bacon -18/-22 85 - 90
Sausage -18 90
Venison -12/-18 80 - 90
Cleaned poultry -12 85 - 90
Fish
Frozen, oily fish -23/-25 90 - 95
Frozen, lean fish -20 90 - 95
Frozen filets -23/-25 90
Dough
Bread -18 90
Rolls -18/-20 80
Cake -18 85 - 90
Small cakes, cookies -18 85 - 90
Cream cakes -18 85 - 90
Butter, long-term -10/-20 80 - 85
Frozen vegetables -18/-23 85
Fruit -23/-25 80 - 90

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General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page No. 6008518-02 GB Right reserved to make technical changes! Valid 03.17

GB
General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page No. 6008518-02 GB Right reserved to make technical changes! Valid 03.17
Latvia
Viessmann Refrigeration Systems Latvia
filiále
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[e-mail]
www.viessmann.com
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Viessmann Nederland B.V.
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Norway
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Poland
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[e-mail]
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Viessmann Group – Refrigeration Systems
Moscow, St. Petersburg
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Slovakia
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[e-mail]
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United Kingdom
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Viessmann Refrigeration Systems ApS
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