SECTION 5 – INSTALLATION ANd prOgrAmmINg
2014-MAY-09 REV. 01 PAGE 5-17
pOWEr CIrCUIT CABLES (Continued)
NOTICE
Anytime fuse cover is opened or fuse is
removed, review steps (a-e) to confirm fuse
and cover are correctly replaced.
Cover must be completely refilled with Dow
Corning #4 or equal (dielectric) grease before
closing to maintain IP67 rating. Press cover
firmly in place and wipe off excess grease.
dISCHArgE prESSUrE SWITCH
The discharge pressure switch is a manually resettable
SPDT switch. See Figure 5-49. The switch design specifically
provides pressure switch feedback to the ICM through detec-
tion circuit #2.
FIgUrE 5-49
dISCHArgE prESSUrE SWITCH CONNECTIONS
009344
Standard installation of the pressure switch is at the agent tank
(see Figure 5-50).
CAUTION
!
Locate pressure switch next to agent tank at end of expellant
gas line. Failure to comply will cause pressure switch to not
function properly.
1. Install pressure switch in expellant gas actuation line next
to agent tank inlet port. Make certain to protect switch and
connections from potential damage.
2. The switch installs in a standard 1/4 in. NPT female fitting.
Insert the included 1/4 in. tee between expellant gas line
hose from actuator and tank inlet port. Use Teflon tape on
the male threads. See Figure 5-51 for proper wrench grip
area.
FIgUrE 5-50
INSTALLEd prESSUrE SWITCH
009345
CAUTION
when threading the switch into the expellant gas line tee, DO
NOT apply torque directly to the metal switch body. Failure to
comply may result in damage to the switch. Tighten ONLY by
applying torque to the 1/4 in. NPT male pressure fitting. See
Figure 5-51.
CAUTION
DO NOT install the pressure switch in the fire hazard area or
in any area where the ambient temperature will exceed 175 °F
(79 °C). Failure to comply may prevent the pressure switch from
functioning properly.
CHECKFIRE 210
Detection and Actuation System
CONNECTS TO
ExPELLANT
GAS LINE
RESET BUTTON
CONNECTS TO
DETECTION
CIRCUIT CABLE
TO ELECTRIC-
PNEUMATIC
ACTUATOR
1/4 IN. TEE
DETECTION
CIRCUIT
