Ansul INERGEN - Page 101

SECTION VI
UL EX-4510 12-1-01 Page 6-17
Installation
INSTALLING ACCESSORIES (Continued)
Pressure Trip (Continued)
Pressure trips can be piped in series and the last pressure
trip must contain a 1/4 in. plug in the outlet port. See Figure
16. Maximum of two pressure trips in a single actuation line.
Operating pressure must be a minimum of 75 psi
(517 kPa) with a maximum load of 70 lbs. (31.8 kg).
Maximum total length of all 1/4 in. piping must not exceed
100 ft. (30.5 m).
FIGURE 16
001903
Pressure Switch
Pressure switches are used to pneumatically operate elec-
trical circuits which, in turn, will operate alarms, lights, or
turn on or turn off equipment.
Pressure switches can be piped off the INERGEN system
discharge piping, down stream from the orifice union, which
is the preferred method, (or piped off the system manifold),
or if the system is utilizing an ANSUL AUTOMAN II-C, the
pressure switch can be piped off the actuation line. See
Figure 17.
1. Mount pressure switch(es) in desired location(s) with
appropriate fasteners.
2. Install piping from main actuation line, or from the
INERGEN system distribution piping, to pressure
switch fitting. Piping to be 1/4 in. Schedule 40, black or
galvanized steel pipe, and must not exceed 100 ft.
(30.5 m).
Wire each pressure switch to other compatible components
in accordance with manufacturer’s instructions. A QUALI-
FIED ELECTRICIAN should connect all electrical compo-
nents in accordance with the authority having jurisdiction.
PRESSURE TRIP
INSTALLATION
PRESSURE
SWITCH
(SEE
COMPONENT
SECTION)
1/4 IN.VENT
PLUG, PART
NO. 842175
PLUG LAST
PRESSURE TRIP
PA RT NO.
805156