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FHSD700C Series Product Guide
6.1 Servicing
Note: Servicing should only be carried out by trained service contractors.
Ensure that all relevant site personnel & supervising authorities have been informed and, where
necessary, the system has been isolated from the main building alarm system before undertaking any
actions which may result in Alarm and/or Trouble/Fault conditions.
Service Description
Check control panel for faults and test
LEDs
Check data logs & record main events
(Faults/Alarms etc.)
Check flow readings and record values for
each channel
Physically inspect installation (Pipework &
Cabling)
Inspect fuses and ensure correct ratings
Replace detector filter elements & clean
*
chamber
*
Replace internal filters
Inspect and clean/replace in-line & end of
*
line filters
Replace Gaswitch Seals (Exchange unit)
Replace pump vanes/rotor (Exchange unit)
Replace exhaust filter/silencer &
associated tubing
Normalise flow (due to replacement of filter
elements)
Record flow values for each channel
Test optional accessories etc.
Carry out smoke test to BS6266 A.3 on
single point
Carry out smoke test to BS6266 A.3 on all
channels
Record results in system log book
Complete servicing certificate and issue to
user
* Cleaning & filter change intervals are dependant on environmental conditions. The above recommendations are
based on typical office environments and the frequency may need to be increased for harsher environments.
34
Servicing Interval (Months) >
6
12 18 24 30 36 42 48
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Notes
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X Not FHSD720C or 'Blind' unit
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X FHSD724DC, FHSD726DC, &
FHSD7215DC ONLY
X FHSD7215DC ONLY
X FHSD7215DC ONLY
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X e.g. Remote Display, Relays etc.
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