5
00245
17. Fill and Prove
Gas Fill Time.
The Fill Time should be set such that there is sufficient time to fill an empty pipe work
system to full / normal pressure while ensuring a minimum escape of gas where a leak
exists.
(Factory default setting is 5 seconds).
Gas Prove Time.
This should be set such that the smallest leak can be detected. This time
can be set up to a maximum of 9 minutes. Increasing this time effectively makes the
system more sensitive to gas leaks.
(Factory default setting is 1 minute).
FILL switch @ 1,2,3,4,5,6,7,8,9,0 = 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s,
PROVE switch @ 1,2,3,4,5,6,7,8,9,0 = 1m, 2m, 3m, 4m, 5m, 6m, 7m, 8m, 9m, 30s,
The prove time can be extended using FILL/PROVE MULTIPLIER, see
No 26
.
18.
Timer adjustment for fan commissioning, allows timed period for gas installation
commissioning.
19.
Auto stop timer to isolate gas after set length of time. Factory set for model & use
20.
CO2 alarm level adjustment depending on application. Factory set for model & use
21.
High pressure sender unit: Low pressure cut out adjustment (for systems over 1 bar)
18, 19, 20, 21 Option Headers
18
19
21
20
Fan comm.
To enable the commissioning of the gas portion of the system before the ventilation interlock is
completed you may temporarily disable the interlocking by pressing button
22.
This will bypass the ventilation interlock allowing the gas to be tested, the system must not be
left in this state and as such is only for a maximum 24hour period before auto exiting.
While in
commissioning mode the display will show the message “Not to current standards”
. Pressing
the button again at anytime will cancel commissioning mode.
Learn Field devices.
Any gas detectors connected to the system will require “learning”. First ensure all detectors are set to a unique ID address using
the selector switch on the detectors themselves. Having addressed each detector press the learn field devices button (
23
), the
system will scan and store any connected detectors. To verify that all detectors have been successfully learnt press the “blind
button B” on the front panel to view address details.
22, 23 Fan Comm & Learn Detectors
22
23
System Settings
SEC-Lw
SW = X2
This doubles the fill & prove time.
SW = X0.5
This halves the fill and prove time test, please note the minimum prove time is 30
seconds which cant be reduced any lower.
26. Fill/Prove multiplier
