Biddle PS Series - 3 Maintenance; Safety Instructions; Replacing the Filter; Introduction

B
16
Manual model PS
3 Maintenance
3.1 Safety instructions
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Warning:
Maintenance works may be performed by
qualified technical staff only.
Before opening the unit, follow the safety
instructions in Section 1.5.
3.2 Replacing the filter
3.2.1 Introduction
The filter must be replaced regularly. A dirty
filter may cause inadequate heating, cooling
or ventilation as well as a high noise level.
The interval at which the filter is to be re-
placed depends on the use of the room.
New filters are available from Biddle. You
may also clean the filter material with, for
instance, a vacuum cleaner. After some
cleanings, however, the filter must be re-
placed.
3.2.2 Replacing flat-bed filter in base
module
1 Remove the inspection panel from the
base module (Section 4.2.1).
2 Gently pull 1 the frame and the filter
material out of the unit. If you handle the
filter too roughly, dust may fall out.
3 Replace the filter with a filter of the same
class.
3.2.3 Replacing bag-type filter or
pleated filter
Only for filter module PS F or PS FE
1 Remove the inspection panel from the
filter module (Section 4.2.1).
2 Gently pull 1 the cassettes and the filter
material out of the unit. If you handle the
cassettes too roughly, dust may fall out.
3 Replace the cassettes with cassettes of
the same filter class.
3.3 Cleaning
You can clean the unit's exterior as well as
the air intake and discharge grilles with water
and a domestic cleaning agent. Do not use
any solvents.
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Warning:
Make sure no water enters the unit.
Carefully remove dust from the heating ele-
ment with a vacuum cleaner.
3.4 Scheduled maintenance
Biddle recommends to have the following
inspections performed by an installer or other
technical expert every year.
For all units:
- Check if the filter is clean enough, and
undamaged. Replace the filter if neces-
sary.
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