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VR 250 ECH/B
Operation and maintenance instructions
206610 (16-11-2010)
8
Systemair
AB
GB
Checking the heat exchanger /Rotor belt
Checking the heat exchanger (every 3 years)
(fig. 4)
Even if the required maintenance in items 1 and 2 is carried out, dust will build up in the exchanger block.
It is therefore of vital importance for the upkeep of a high efficiency that the exchanger block is removed
from the unit and cleaned periodically. Wash in hot soapy water. Do not use detergent containing
ammonia.
The belt that drives the exchanger rotor should be controlled on a regular basis. It is recommended to do
this whenever it is time to change filters. Check that the belt is whole and without any visible damage and
that it is tight enough to move the heat exchanger wheel (check by turning the exchanger wheel by hand
and see if the belt pulley on the rotor motor moves as well. If the belt needs to be replaced contact your
installer.
Note!
Ensure that the rotor motor is not exposed to moisture.
Checking the fans
Checking the fans (every 3 years)
(fig. 5)
Even if the required maintenance, such as cleaning/changing of filters is carried out, dust and grease will
slowly build up inside the fans. This will reduce the efficiency. As necessary the fans can be pulled out for
cleaning with a soft brush. Do not use water. White spirit can be used to remove obstinate settlements.
Allow to dry properly before remounting.
Cleaning extract louvers and inlet diffusers
Cleaning extract louvers and inlet diffusers (as necessary)
(
f
ig. 6)
The system supplies fresh air to your home and extracts the used indoor air via the duct system and
diffusers/louvers. Diffusers and louvers are mounted in ceilings/walls in bedrooms, living room, wet rooms,
WC etc. Remove diffusers and louvers and wash in hot soapy water as required. (Diffusers/louvers must
not be exchanged).
C
hecking the fresh air intake
Checking the fresh air intake (twice a year)
fig. 7
Leaves and pollution could plug up the air intake grille and reduce the capacity. Check the air intake grille
at least twice a year, and clean as necessary.
Checking the duct system
Checking the duct system (every 5 years)
(fig. 8)
Dust and grease settlements will, even if required maintenance such as cleaning/changing of filters is
being carried out, build up in the duct system. This will reduce the efficiency of the installation. The duct
runs should therefore be cleaned/changed when necessary. Steel ducts can be cleaned by pulling a brush
soaked in hot soapy water, through the duct via diffuser/louver openings or special inspection hatches in
the duct system (if fitted).
Note!
In addition, the roof unit must be checked once a year, and cleaned as necessary
(fig. 9)
.
For use and maintenance of cooker hood, see separate instructions.
Fig. 7
Fig. 8
Fig. 9
