Energy Plus
33
The post-heating electric coil prevents the
temperature of the intake air from being too
low and ensures environmental comfort.
Operation of the resistance is controlled according
to the temperature of the intake air.
FASTENING
The resistance is connected to the system on the
air supply channel. The air that passes through
the heater must flow in the direction indicated
by the arrow on the side of the heater, near the
terminal block. The heater can be installed in a
vertical or horizontal duct, and must be made
of fire retardant material resistant to both heat
and cold.
The distance between the heater and an elbow,
a valve, a filter etc. must be at least
twice the diameter of the duct, otherwise the
flow of air through the heater might be irregular
and cause activation of the thermal overheat
protection.
The heater must be insulated as per the regulations
relating to ventilation ducts. The insulation material
must always be flame retardant. The cover of
the heater must be free of insulation, so that
the name tag can be clearly seen and the cover
can be removed.
The installation area of the heater must remain
accessible to permit replacement and servicing.
The minimum distance between the metal casing
of the heater and any wood or other combustible
material must be 30 mm.
MAINTENANCE
The unit is maintenance-free and requires only
a periodic field test.
The electrical panel can be facing upwards or
sideways, at an angle of 90° max.
The panel must
NOT
face downwards.
OVERHEATING
When the thermal overheat protection with manual
reset is activated, you must take the following
measures: do not tamper with the heater in any
way, e.g. do not remove the cover. Refer to an
authorised electrician. Disconnect from the main
power supply and identify the cause for activation
of the overload device. The overload device can
be reset once the fault has been resolved.
