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12.1.1 "Diddle" Valve Wiring
(Part Numbers: A29251 for 2" and A39251 for 3")
One of the solenoids’ green case grounds can be attached to terminal block
J5-24
and
the other to
J5-25
. Solenoid 1
(S1)
is on the inlet to the bonnet solenoid. Solenoid 2
(S2)
connects the bonnet to the outlet. The wires from S1 connect to terminal block J-4-
SOL1. The wires from S2 connect to terminal block J-4-SOL2.
12.1.2 Liquid Controls Dual Stage Valve Wiring
(Part Number: A284811 for 2")
Solenoid S1 is hard piped to the top of the differential valve and represents the first
stage of the closure. Solenoid S2 connects the inlet of the differential directly to the
outlet of the differential valve. The second stage and shut-off is controlled here. The
wiring of these solenoids is the same as the "diddle" valve wiring described above in
section 12.1.1.
12.1.3 Single Stage Valve and Three Way Solenoid Wiring
Wire the solenoid to J4-SOL2. Wire the case ground to J5-24 or J5-25.
12.2 WIRING OF RTD TEMPERATURE PROBE TO THE RSCB
Make sure that there is enough slack in
the conduit leading from the RSCB to
the strainer mounted RTD to allow the
strainer cover to be removed.
Feed the cable from the back of the
RTD through the conduit to the RSCB.
Cut the cable on the RSCB end, leaving
enough slack for about two loops of
cable inside the RSCB.
Trim back the Teflon sheathing enough
to expose a few inches of the wires
inside.
Strip the insulation from the wires and
connect them to terminal block J2 as
follows:
q
22GA Red Wire J2 - 11
q
22GA Red Wire J2 - 12
q
22GA White Wire J2 - 13
12.3 POD WIRING
Install the pulse output device according
to the instructions in its manual (Series
E2800 “Installation, Operation and Parts
manual).
Wire the POD to terminal block J3 in the
RSCB. The pulser cable is usually best
installed with the conduit hub facing
down and the wires routed to one of the
½” NPT conduit hubs on the left side of
the RSCB, using right angle fittings.
It can, however, be wired through any of
the ½” NPT conduit hubs.
12.4 INTERNAL PULSER WIRING
If the system is equipped with an internal pulser, the pulser circuit board should already
be connected to the RSCB circuit board through connector J9.
