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VSC OPERATION AND MAINTENANCE INSTRUCTIONS 4 118 0324 2 IOM

ManualsBrandsSystemair ManualsAir Handling UnitsVSC 700 EC Ceiling HRU no htr
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Topvex FC
Compact Air Handling Unit
Operation and Maintenance Instructions
Document in original language
125918-EN_GB
2015-03-16 A001
Operation and Maintenance Instructions
Systemair AB
5.3.4 Checking the fans
Even if the required maintenance, such as change of lters is carried out, dust and grease may slowly build up inside
the fans. This will reduce the e󰀩ciency.
The fans are easily taken out from the unit (gure 7) by loosening 4 screws and disconnecting the fast couplings to the
electric wires. Depending on the accessories installed, remove the tubing next to the fast couplings for the extract air
fan or both the extract air fan and supply air fan.
Clean the fans with a cloth or a soft brush with a recommended interval of once per year. Do not use water.
White spirit can be used to remove obstinate settlements. Allow drying properly before remounting.
5.3.5 Cleaning the extract louvers and inlet di󰀨users
The system supplies treated outdoor air to the building and extracts the used indoor air via the duct system
and di󰀨users/louvers. Di󰀨users and louvers are mounted in ceilings/walls in bedroom, living room, wet
rooms, WC etc. Remove di󰀨users and louvers and wash in hot soapy water if required. Di󰀨users/ louvers
must be put back with their original settings and positions in order not to unbalance the system.
The cleaning of these parts is done when necessary.
5.3.6 Checking the outdoor air intake
Leaves and pollution could plug up the air intake grille and reduce the unit’s capacity. Check the air intake
grille at least twice a year and clean if necessary.
5.3.7 Checking the duct system
Dust and grease settlements may build up in the duct system even if lters are changed regularly. This
will reduce the e󰀩ciency of the installation. The ducts 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
di󰀨user/louvre openings or special inspection hatches in the duct system (if tted).
Fig. 7