FireFlex Systems Inc. N2 BLAST Owner's Operation & Maintenance Manual page 26

Figure 5.4 – Air supply Style "B"
(APMD without air compressor)
TO PNEUMATIC
ACTUATOR
(plugged when
not used)
FM-061H-0-119B
Note: The external air supply must be restricted to insure that it cannot replace air as fast as it escapes when a releasing
device or sprinkler operates. When the system is put in service, open the input valve (E6) first
Air option components:
E3 System air pressure gauge
E4 Air supervisory pressure switch
E5 Air pressure maintenance device (APMD)
Page 22 of25
F F
IRE LEX
Integrated Fire Protection System
O ' O
WNER S PERATION
This section replaced
E5
by Dehydrator option B
(when used)
E7
E6
E8
3
E16
E3
® ®
N B
LAST
2
& M M
AINTENANCE ANUAL
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)
E6 APMD input valve
E7 APMD output valve
E8 APMD bypass valve
FM-076B-0-6A