Vallox 132 E Series, Instructions For Use And Maintenance Manual

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2.3. Post-heating
For most of the year, heat recovered from the air being extracted is enough to warm the
cold air coming from the outside to a suitable temperature. If the heat of extract air is not
enough, air coming from the outside may be heated further with the post-heating radiator
delivered with the unit.
Vallox 132 E model (electric post-heating)
VALLOX 132 E comes standard with a 1200 W electric radiator (1) for heating supply air.
The temperature of supply air is adjusted at the thermostat regulator (B) located inside the
unit behind the cover plate. Temperature adjustment range is +0...+25
°
C. Supply air
temperature will not go below the adjusted value.
It is advisable to set the thermostat at 0
°
C in summer. In this case, the radiator does not
heat air.
Vallox 132 E VKL model (water-circulating post-heating)
VALLOX 132 E VKL model has a water radiator (3) for post-heating. It is regulated using
ON/OFF control. The circulation pump is put on in autumn, when the heating season has
started, and off in spring when the weather is warm. The temperature of supply air can also
be adjusted with a separate self-actuated thermostat (not included in the unit delivery). In
detached houses, it is customary to use water/glycol mixture as the liquid in order to prevent
the freezing of the radiator. Heating of air depends on the temperature of the water/glycol
mixture flowing in the radiator and on the air flow rate.
If it has not been considered appropriate to build a water/glycol circuit (schools, office
buildings etc.), the radiator may have been connected directly to the radiator network.
Supply air temperature is then regulated by the temperature controller of the radiator network
or by a separate self-actuated thermostat.
A post-heating radiator connected directly to the radiator network runs a risk of freezing
(see Section 2.4.2.). For antifreeze, see Section 2.4.
A
C B
VALLOX 132 E/VKL
INSTRUCTIONS FOR USE
5 © VALLOX • We reserve the right to make changes without prior notification
Connection box cover plate
1 2
Vallox 132E R
Vallox 132 E VKL R
4
5
3
Thermostats (behind cover plate)
Vallox 132 E thermostats
(electric post-heating radiator)
A Antifreeze thermostat of heat
recovery cell
B Post-heating thermostat
(regulation of supply air
temperature)
C Preheating thermostat
Vallox 132 E VKL thermostats
(water-circulating post-heating
radiator)
A Antifreeze thermostat of heat
recovery cell
B Post-heating antifreeze
thermostat
C Preheating thermostat