Zehnder Rittling ComfoAir 70, Руководство по эксплуатации и сборке

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2.1.1 Type plate
The type plate clearly identifies the product. The type plate is found below the upper design-cover hood on
the device core made of polypropylene. The information on the type plate is necessary for the safe use of the
product and in case of service-related questions. The type plate must be permanently attached to the
product.
2.1.2 Frost Protection
ComfoAir 70 is equipped with an automatic frost protection control, which prevents the freezing of heat
exchanger at a too low outside air temperature.
The ratio between the supply air volume flow and exhaust air volume flow is thereby automatically adjusted
through the control. In the case of outside temperature lesser than -15 °C, the device is switched off. After
the waiting period lapses, the device automatically checks whether the conditions for frost protection has
changed and is again switched on, if required.
Each fan speed has separate settings for frost protection. Only then it is possible to achieve an optimum of
heat recovery. Fan speed 3 and 4 are designed till -15 °C; the shutdown is done a little earlier in stages 1
and 2. If the device is shutdown in levels 1 and 2 then it is possible to manually change to a level with less
frost protection limit. If the completely blue LED-Ring keeps blinking repeatedly while changing to the next
fan speed then the conditions for the operation are not fulfilled in case of cold outside temperature in this
level; in this case the next fan speed is to be selected.
If the conditions are fulfilled with the settings of the next fan speed then, as in the normal operation, the
corresponding fan speed is also displayed over the blue LED-Ring and the ventilation device.
Item Designation
A Filter cover made of cellular rubber (2x)
B EPP Insulated Element of the upper part
C Filter (2x)
D Enthalpy exchanger (ERV)
E Wall bracket
F Combo-External Wall Grid with integrated protective mesh
G Wall-Installation tube made of plastic
H Lower design –aluminium cover hood with integrated control panel
I EPP-housing unit with integrated ventilators and flap mechanism
J Upper design - aluminium cover hood
K Control board