Supply and extract ducts led through heated spaces in
dwellings not require insulation.
Fresh air and exhaust ducts:
In warm loft spaces and heated rooms dwellings the
fresh air and escaping ducts must insulated with
minimum insulation.
. The water supply the water-based
reheating surface must executed authorised
plumbing and heating engineer.
We recommend insulation 100 the fresh air
duct when installing earth heat exchanger.
Electrical reheating surface
The sensor for controlling the electrical heating surface
is mounted the supply air channel approx. addition the insulation must
be covered externally with plastic film aluminium foil in
order avoid condensate the insulation.
If this lower supply temperature insupportable during
cold periods, water-based electrical reheating surface
can mounted for reheating the supply air room
temperature. the supply air duct
has cooling, bypass earth heat exchanger installed it
must insulated. The frost protection thermostat
sensor mounted behind the fins the water-based
reheating surface. 500 mm
downstream the electrical reheating surface order
not affected the radiant heat from the heating
element.
Water-based reheating surface
To protect the water-based reheating surface from frost
burst, frost protection thermostat must fitted the unit
and the surface insulated.Subject Technical Modifications Energy and 3/GES Energy 1
Extract Air
Supply Air
With water-based reheating surface
500
Extract air
Supply air
With electrical reheating surface
500
Insulation ducts heated spaces
Supply and extract ducts:
In warm loft spaces the supply and extract channels must
be insulated with insulation. The sensor for controlling the motor
valve mounted the supply air channels approx. 500
mm downstream the water-based reheating surface
in order not affected the radiant heat from the
heating element.
Reheating supply air
As the counter current heat exchanger cannot extract all
the heat from the extract air and supply the supply air,
the supply air will about 1-4°C colder than the room
temperature the dwelling for the whole winter season
