System Sensor PIBVEXP Installation And Maintenance Instructions page 3

Figure 2:
W0244-00
Figure 3:
TO NON-SILENCEABLE
INITIATING ZONE OF
LISTED FACP
W0245-00
TO POWER SOURCE
COMPATIBLE WITH BELL
TYPICAL LOCAL BELL CONNECTION
W0246-00
D770-28-00
SUP. SWITCH
TYPICAL FACP CONNECTION
7. Slide the actuating arm into the valve until it bottoms
on the flag, but do not tighten the lever screw.
8. Open the valve to the full open position and tighten the
lever screw to hold actuating arm in position. (Actuat-
ing arm length will adjust slightly as valve is opened.)
Check to ensure that in the full open position the actu-
ating arm is not resting on the nipple.
9. Carefully close valve and note the number of handle
revolutions until the switch trips. The switch must trip
1 ⁄5
within of the total travel range of the valve.
10. Wire the switch as shown in Fig. 3.
NOTE: When removing the cover of the PIBVEXP use
provided allen wrench in box.
SUP. SWITCH
LOCAL
BELL
BREAK WIRE AS SHOWN FOR SUPERVISION
OF CONNECTION. DO NOT ALLOW STRIPPED
WIRE LEADS TO EXTEND BEYOND SWITCH
HOUSING. DO NOT LOOP WIRES.
3
END OF LINE
RESISTOR
W0247-00
I56-1430-002R