Installation
April 2020 4-36 06-237619-001
4-15 PRESSURE OPERATED SWITCHES
Pressure operated switches must be connected to the pilot piping or discharge manifolds as
shown in Figure 4-25 and Figure 4-26. The preferred mounting position is upright. Both the
standard and explosion-proof pressure switches have 1/2-inch NPT pressure inlets to connect
to the piping. The electrical connections are either 1/2-inch conduit knockouts or 1-inch NPT
fittings. The minimum operating pressure required is 50 PSI.
Figure 4-25. Pressure-Operated Switches
PRESSURE OPERATED SWITCH
3P.D.T.
U
L
FM
R
Kidde
FRONT VIEW
FRONT VIEW
COVER REMOVED
SWITCH 3PDT
COVER
GASKET
SIDE SECTION
1/2 in. NPT FEMALE -
CONNECT TO SYSTEM PIPING
BOX
(3) 1/2 in. CONDUIT
KNOCKOUTS EACH SIDE
1/2 in. SUPPLY PIPE
WITH UNION
(8) COVER SCREWS
WIRING
SCREW
TERMINALS
(4) 1/4 in.
MOUNTING HOLES
OPERATED
SET
OPERATED
SET
To Next Page
Loading...
