Preaction Air Supplies; Direct Air Compressor (Style "A") - FireFlex Systems Inc. N2 BLAST Owner's Operation & Maintenance Manual

5. PREACTION AIR SUPPLIES

5.1 Direct air compressor (Style "A")

Used only for the sprinkler piping network of the preaction
system. Air supply style "A" includes the air compressor
mounted inside the F F
IRE
supervisory trim and options.
tankless, oiless piston type and are factory piped to the
sprinkler system riser, all within the F
cabinets.
Compressors are available in four (4) sizes:
1/6HP 1/2HP
1/3HP 1HP
E1
This section replaced
by Dehydrator option A
(when used)
E4
(plugged with
SureFire trim)
E10
E9
E2
3
TO PNEUMATIC ACTUATOR
(plugged when not used) E3
Table 5. - Pressure adjustments
System type
Double interlocked
electric/pneumatic
Water pressure up to
175 psi (12.1 bar)
Double interlocked
electric/pneumatic
Water pressure 175 to
250 psi (12.1 to 17.2 bar)
Page 16 of25
F F
IRE LEX
Integrated Fire Protection System
O ' O
WNER S PERATION
® ®
N Blast cabinets with its
LEX
2
Compressors are of the
®
F N Blast
IRE LEX
2
E11
Copper tubing
TO OPTIONAL ACCELERATOR
(plugged when not used)
E12
2 TO DRAIN COLLECTOR
1
TO SPRINKLER RISER
CONTRACTOR'S
HYDROSTATIC TEST PORT
(system side)
FM-061H-0-118B
Air supply Air
style regulator
A n/a
35 psi
B
(2.42 bar)
A n/a
55 psi
B
(3.80 bar)
® ®
N B
LAST
2
& M M
AINTENANCE ANUAL
Compressor Service Factor Amp (S.F.A) rating
Compressor
115Vac / 60Hz
Size (HP)
1/6
1/3
1/2 10.0 Amp.
1 18.0 Amp.
®
115 / 230 Vac – 60Hz air compressor selection Table:
CFM System capacity to
@ fill system to 35 PSI
H.P
40 PSI
1/6 1.33
1/3 2.61
1/2 4.06
1 7.40
* For systems with maximum water supply
pressure of
175 PSI (1206 kPa)
** For systems with water supply pressure
between
175 PSI (1207 kPa) and 250 PSI (1724 kPa)
WARNING The information contained herewith is for
estimation and evaluation purposes only. Its use remains
the responsibility of the designer.
Compressor Compressor
Start Stop
20 psi 35 psi
(1.38 bar) (2.42 bar)
n/a n/a
40 psi 55 psi
(2.76 bar) (3.80 bar)
n/a n/a
230Vac / 60Hz
5.0 Amp. 2.5 Amp.
7.4 Amp. 3.7 Amp.
5.0 Amp.
9.0 Amp.
System capacity to
fill system to 55 PSI
in 30 minutes * in 30 minutes **
142 gal.
285 gal. 181 gal.
417 gal. 265 gal.
702 gal. 447 gal.
Low air
supervisory
25 psi
(1.73 bar)
25 psi
(1.73 bar)
45 psi
(3.11 bar)
45 psi
(3.11 bar)
220Vac / 50Hz
1.3 Amp.
2.5 Amp.
4.0 Amp.
6.0 Amp.
90 gal.
FM-076B-0-6A