72
INSTALLATION AND SECURITY
USE
• When installing HERU
®
consideration must be
given to any approval authority requirements and
recommendations concerning siting, accessibility,
electrical connections, etc.
• The HERU
®
unit is accessible for the user, accor-
ding to IEC 60335-2-40, to by themselves do the
service and maintenance, according to this
Directions for use. But before this work the unit
must be currentless.
With reservation according to IEC 60335-2-7.12
”This appliance is not intended for use by persons
(including children) with reduced physical, senso-
ry or metal capabilities, or lack of experience and
knowledge, unless they have been given supervi-
sion or instruction concerning use of the appliance
by a person responsible for their safety.”
”Children should be supervised to ensure that they
do not play with the appliance.”
• The HERU
®
unit should be storage in a sheltered
and dry place before installation.
• Dimensioned air flow should not exceed 60% of
the unit's maximum capacity.
• Check at regular intervals that supply air and ex-
haust air works.
• To avoid condensation in the unit during the cold
season, the unit should not be turned off for a
longer period. When installed in warm moisturre
environment as e.g. bathroom and utilityroom con-
dense may appear on the outside of the unit at low
outside temperatures.
SECURITY
• Attention, look out for sharp edges and corners on
the HERU
®
unit and fans.
• Consider the weight of the unit. See page 108.
• Before maintenance work the HERU
®
unit must be
currentless. If there is a need of changing or comp-
lement any electrical components, it should be
done by a qualified person.
• The HERU
®
unit includes rotating parts that could
cause serious danger on the occasion of contact.
This is why the unit must be duct connected and
the lid closed with the screws tightened, before
starting up the unit.
• After the current is cut for service and maintenan-
ce the electric heater may still be warm.
• Make sure that the access cable is not damage at
mounting and installation.
• HERU
®
must be equipped with earth fault breaker.
• The HERU
®
180 S needs a permanent electrical
supply. The unit must be connected via a safety
switch. Any electrical connections must be made
by a qualified electrician.
MOUNTING THE HERU
®
T
• The HERU
®
T should be installed according to the
assembly instruction on pages 75-76.
• The unit should be fixed on the wall with faste-
ners gear to the construction of the wall.
• Avoid mounting on a wall adjacent to bedroom.
• The unit should be mounted on an insulated wall.
• Use duct clamp or flange with encompassing insu-
lation when connecting to duct.
• If the supply and the exhaust air ducts are installed
in a cold space they should be insulated. To pre-
vent condensation the supply air duct should also
be insulated if installed in warm space at low supp-
ly air temperatures.
• The fresh air and extract air duct should always be
condense insulated.
• The ducts should be insulated all the way towards
the unit.
• The duct sensor GT7 is mount in the supply air
duct, and the antenna on a suitably position beside
the unit (not against metal).
• Acoustic silencer should be planned with the help
of sound data and required sound levels.
• If a heating coil is connected a cut off damper must
be mounted in the fresh air duct.
• Cooker hood (available as an assessory) can be
connected to HERU
®
62 T, 90 T, 115 T, 130 T EC
and 140 T where the exhaust air is not passing
through filter or the heat exchanger.
• Consider that kitchen ducts in houses must be
mounted with the lowest fire resistance class E15
and with a safety distance of minimum 30 mm to
combustible material. The kichen duct must also
be equipped with a cleaning door.
MOUNTING THE HERU
®
S
• HERU
®
S should be installed according to the
assembly instruction on page 77.
• Place the unit on a ground board, min. 50 mm.
• Supply and exhaust air must be duct connected on
the same side of the unit.
• Acoustic silencer should be planned with the help
of sound data and required sound levels.
• Use duct clamp or flange with encompassing insu-
lation when connecting to duct.
• If the supply and the exhaust air ducts are installed
in a cold space they should be insulated. To pre-
vent condensation the supply air duct should also
be insulated if installed in warm space at low supp-
ly air temperatures.
• The fresh air and extract air duct should always be
condense insulated.
• The ducts should be insulated all the way towards
the unit.
• The duct sensor GT7 is mount in the supply air
duct, and the antenna on a suitably position beside
the unit (not against metal).
• If a heating coil is connected a cut off damper must
be mounted in the fresh air duct.
• Cooker hoods must not be connected to the
HERU
®
S because of the increased cleaning de-
mand.
• Ducting must be conntec-
ted to external ground on
the unit, see picture.
WARRANTY
The warranty is only valid under condition that the
HERU
®
unit is used according to this ”Directions for
Use” and a regular maintenance has been record.
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