Hot Water Heater Battery - Helios EC green Vent KWL EC 700 D Pro / WW Notice De Montage Et D'entretien

Installation and Operating Instructions
EN
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KWL EC .. Pro WW
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ATTENTION
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KWL EC.. Pro
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KWL EC.. Pro WW
Central ventilation units KWL EC.. D Pro/WW

3.2.3 Hot water heater battery

A hot water heater battery ensures the comfortable and energy-efficient auxiliary heating of supply air. This is particu-
larly useful if the supply air (heated outside air from the heat exchanger) is to be heated to a higher temperature level
(normally room temperature or higher).
– Connection and regulation of internal hot water auxiliary heater (only Type KWL EC.. Pro WW)
The outside air and supply air which has been pre-heated by the heat exchanger can be additionally heated with the
internal hot water heater battery. A WHSH HE 24 V (0-10 V) (Ref. no.: 8318) is required for this (WHSH HE.. not inclu-
ded in scope of delivery), and the circulating pump integrated in the WHSH HE.. must be operated at medium capacity.
When using the hot water heater battery, it must be ensured that the hot water supply is guaranteed at all times, for
example, to prevent frost damage to the heater. The hydraulic unit must be connected to the ventilation unit by a spe-
cialist.
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A cover flap must be mounted in the outside air and in the exhaust air on KWL EC .. PRO WW units to pre-
vent damage to the hot water heater!
Internal thread IG ½"
– Connection and regulation of external hot water auxiliary heater battery (only Type KWL EC.. D Pro)
It is possible to integrate an external hot water aux. heater on unit types KWL EC 700/1400/2000 D PRO (internal
thread IG ½"). The heater battery can be regulated with the controller by regulating the ventilation unit.
3.2.4 Frost-protection Hot water heater battery (only Type KWL EC.. Pro WW)
The hot water heater battery frost-protection prevents hot water heater from freezing at extremely cold temperatures
and in case of non-functioning central heating.
Frost-protection is active if the following conditions are met:
Condition I: Outside air temperature (sensor EXT1) lower than +2 °C
Condition II: Temperature behind the heat exchanger (supply air) (sensor EXT2) lower than +5 °C
or
Condition III: Outside air temperature sensor (EXT1) is defective
or
Condition IV: Temperature sensor (EXT2) is defective
AND
Condition V: Hot water return flow temperature (sensor T
or
Condition VI: Temperature behind the hot water heater battery (sensor T
or
Condition VII: Temperature sensor Hot water return (T
or
Condition VIII: Temperature sensor Hot water heater battery (T
3.2.5 Frost-protection for downstream hot water heater battery
If the supply air temperature falls below +5 °C, the supply air ventilator will shut down. An error code will be displayed
on the controller.
Fig.10
) lower than +15 °C
water
) is defective
water
) is defective
alarm
10
) lower than +6 °C
alarm