Genvex ECO 375 TL, Руководство по установке

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Temperatur-
stigning, K
Luftmængde, m /h
3
Heating coil – power/flow/temp graph
7
Insulation of ducts in heated spaces
Genvex recommends as follows:
Supply and extract ducts
In warm loft spaces the supply and extract channels must
be insulated with 50 mm insulation.
Supply and extract air ducts led through heated spaces in
dwellings do not require insulation. If the supply air duct has
cooling, bypass or earth heat exchanger installed it must be
insulated.
Fresh air and exhaust ducts
In warm loft spaces and warm rooms in dwellings the fresh
and exthaust air ducts must be insulated with minimum 50
mm insulation. In addition, the insulation must be covered
externally with plastic film or aluminium foil in order to
avoid condensate in the insulation.
We recommend an insulation of 100 mm on the fresh air
duct when installing a earth heat exchanger.
Refer to your local distributor for guidance on national
insulation directives.
Reheating of supply air
As the counter current heat exchanger cannot extract all
the heat from the extract air and supply it to the supply
air, the supply air will be about 1-4°C colder than the room
temperature in the dwelling for the whole winter season.
If this lower supply temperature is insupportable during
cold periods, a water-based or electrical reheating surface
can be mounted for reheating the supply air up to room
temperature.
Water-based reheating surface
To protect the water-based reheating surface from frost
burst, a frost protection thermostat must be fitted to
the unit and the surface insulated. The frost protection
thermostat sensor is mounted behind the fins of the water-
based reheating surface. The sensor for controlling the
motor valve is mounted in the supply air channels approx.
500 mm downstream of the water-based reheating surface
in order not to be affected by the radiant heat from the
heating element. The water supply to the water-based
reheating surface must be executed by an authorised
plumbing and heating engineer.
Electrical reheating surface
The sensor for controlling the electrical heating surface
is mounted in the supply air channel approx. 500 mm
downstream of the electrical reheating surface in order
not to be affected by the radiant heat from the heating
element.
Electrical preheater
At outdoor temperatures below 0 °C it is recommended to
install an electrical preheater to prevent the counterflow
heatexchanger from ice building. The sensor for controlling
the electrical preheater needs to be installed in the fresh
air duct 500 mm. upstream of the electrical preheater.
Note – when using the modulating preheater, the existing
fresh air temperature sensor in the ventilation unit can be
used to control the preheater (no extra temperature sensor
is required).