enervent eWind LTR-2, Installation Instruction

Page: 13 / 96

13
Installation instructions
EN
• Connect the water inlet to the lowest pipe
connector in order to facilitate venting of the coil.
• Consult the principal drawings at the end of
this manual on how to construct the hydronic
circulating system.
• Install a venting valve near the coil or at the
highest point in the system.
• Inspect the duct coil and its connections for leaks
immediately after the system has been filled with
liquid.
• Place the supply air temperature sensor (TE10) in
the duct after the coil.
• Place the water coil return water sensor (TE45)
on the return water pipe of the coil, if the coil is
mounted in the supply air duct.
• Place the outside air temperature sensor (TE01)
in the outside air duct before the coil, if the coil is
mounted in the outside air duct.
• Connect the sensor to the ventilation unit control
circuit board.
• Refer to the electrical schematics at the end of this
manual for correct connections.
Electrical duct coils
NOTE:
The heater is designed for insertion
into standard spiral ducting and is fixed to the
ducting with screws.
NOTE:
The air must flow through the heater in
the direction indicated by the arrow on the side
of the connection box.
To install:
• Install the heater in either horizontal or vertical
ducting.
•
The heater must only be fitted in ducts that
are made of incombustible and heat-and-cold
resistant material.
• The connection box can be freely placed
facing upwards or sideways to a maximum
angle of 90°.
CAUTION
CAUTION:
Do not install the connection box
facing downwards.
• The distance from (to) the heater to (from) a duct
bend, valve, filter, etc., must be at least twice the
duct diameter.
•
Otherwise there is a risk that the airflow
through the heater will be uneven which can
cause activation of the overheating cut-out.
• Insulate the duct heater in accordance with local
regulations for ventilation ducting.
•
Make sure that the insulation is incombustible.
• Do not cover the lid with insulation, since the
rating plate must be visible and the lid must
be removable.
• Do not cover any heatsinks, nor the side of the
connection box where the SCR’s (Triac’s) are
mounted with insulation.
• The duct heater must be accessible for
replacement and inspection.
• Make sure that the distance from the heater metal
casing to any wood or other combustible material
is at least 30 mm.
• Install the duct sensor TE10 (delivered with the
heater) in the duct after the heater, if the heater is
mounted in the supply air duct.
•
If the heater is mounted in the outside air duct,
install the temperature sensor (TE01) before
the heater in the outside air duct and connect
the sensor(s) to the ESC control circuit board.
NOTE:
We recommend installing a safety switch
for the electric heater.
Installing ventilation unit ceiling
installation plate (OPTIONAL)
NOTE:
Ceiling installation plate is separately
sold extra equipment available for ventilation
unit models Pinion, Pingvin, Pingvin XL and
Pandion.
Before installation:
• Make sure that the ceiling is even so that the plate
will be stable and straight when installed.
• The gap between the plate and the back wall must
be at least 10 mm (recommendation) and at least
15 mm between the plate and the side walls.
• The ceiling installation plate top surface must
not be more than 15 mm above the ceiling inner
height.
•
Otherwise you will not be able to hook
the ventilation unit front on to the ceiling
installation plate.