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Toshiba VN-250SE Service Manual page 15

Heat exchange ventilators
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7-4. Maintenance Method
7-4-1. Model VN-250SE/VN-350SE/VN-500SE
• Stop the operation and keep the exclusive breaker "OFF".
• Cleaning the filter (When required)
1) Enter the ceiling from the Inspection Opening for the Heat
Exchange Ventilators, and remove the screw on the inspection
cover.
2) Holding the Inspection Cover, turn two pieces of knob for 90°
and remove the cover.
3) There is a filter below the Heat Exchanger at two places,
respectively. Pull it toward you.
4) Either lightly strike the removed filter with your hand or
vacuum it with a vacuum cleaner to remove the dirt.
If it is very dirty, swish it back and forth in a solution of
lukewarm water and dish-washing (neutral) detergent.
5) Install the filter after thoroughly allowing it to dry naturally.
Avoid using heat to dry the filter, as this may cause changes in
the shape or quality of the filter.
• Whenever the filter was damaged, order the sales shop or the
engineering office. (Separately sold)
• Cleaning the Heat Exchanger.
(If you find it too much stained, clean it.)
1) Remove the filters.
2) Remove the two Heat Exchanger from the unit.
(Model VN-250SE has one Heat Exchange.)
• The weight of the Heat Exchanger is as shown in the table
below.
Hold it firmly to ensure that you do not drop it.
Model
Weight (kg/piece)
VN-250SE
VN-350SE
VN-500SE
CAUTION
CAUTION
Pieces to be used
4.5
3.4
3.7
1
2
2
– 15 –
Hook
Hook
Knob Position
When installed
To remove
(Closed)
(Open)
Filter
Heat Exchanger
Inspection
Cover
Inspection
Cover

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This manual is also suitable for:

Vn-350seVn-500seVn-800seVn-1ksae