Air Pressure Maintenance Device (Style "B") - FireFlex Systems Inc. N2 BLAST Owner's Operation & Maintenance Manual

5.2 Air Pressure Maintenance Device (Style "B")

Used only for the sprinkler piping network of the preaction
system, when an external air supply is provided by others
(tank mounted compressor, plant air or dry nitrogen
cylinders) and piped to the air inlet port of the unit. Air supply
style "B" provides an Air Pressure Maintenance Device
(APMD) trim, factory mounted in the F
cabinets.
This section replaced
E5
by Dehydrator option B
(when used)
E7
E6
E8
TO PNEUMATIC
ACTUATOR
3
(plugged when
not used)
E16
E3
FM-061H-0-119B
FM-076B-0-6A
F F
IRE LEX
Integrated Fire Protection System
O ' O
WNER S PERATION
®
F N Blast
IRE LEX
2
E4
(plugged with SureFire trim)
Contractor external Air
or Nitrogen connection
TO OPTIONAL ACCELERATOR
(plugged when not used)
1
TO SPRINKLER RISER
CONTRACTOR'S
HYDROSTATIC TEST PORT
(system side)
® ®
N B
LAST
2
& M M
AINTENANCE ANUAL
®
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