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V4043, V4044 VALVES; V8043, V8044 ZONE VALVES
VALVE
BODY
Fig. 5a. Install 40003918 conversion kit with brass
adapter plate.
VALVE
BODY
Fig. 5b. Install conversion kit with composite (steel &
plastic) adapter plate.
6. Install new powerhead (see Fig. 6)
a. Place the manual opening lever (normally
closed models only) on the new powerhead in
the MAN. OPEN position.
b. Fit the powerhead onto the valve body, ensuring
that the shaft seats correctly. The powerhead
should be aligned so that the manual opening
lever or slot for lever is at the port A end of the
valve body.
95-6983—11
HEX-NUT SCREW
WITH DOMED HEADS (2)
HEX-NUT SCREWS
WITH RECESSED
THREADS AND
SHOULDER SHANK (2)
BRASS
ADAPTER
PLATE
O RING
LOCATING
RECESSES (3)
M32317
HEX-NUT SCREW
WITH DOMED HEADS (2)
HEX-NUT SCREWS
WITH RECESSED
THREADS AND
SHOULDER SHANK (2)
STEEL
PLATE
PLASTIC
PLATE
O RING
LOCATING
RECESSES (3)
M32316
c. Secure the powerhead to the valve body with
the two screws provided.
d. If fitted, reconnect the conduit or cable. Recon-
nect the leadwires at the powerhead.
e. Replace the powerhead cover.
7. Turn on power.
Fig. 6. Install new powerhead.
SYSTEMS WITH NEW STYLE VALVE BODIES
(SERIES 6)
IMPORTANT
On a new style valve body that has been con-
verted to accept the new powerhead, it is not
necessary to drain the system if the valve body
remains in the pipeline.
1. Disconnect the power supply before connecting the
wiring to prevent electrical shock or equipment
damage.
2. Disconnect the leadwires to the powerhead at the
terminal block or conduit connection. Remove the
conduit or cable connector, if fitted. Label each wire
for rewiring later.
3. Remove the old powerhead (see Fig. 7):
a. Place the manual opening lever (normally
closed models only) on the old powerhead in
the MAN. OPEN position (Fig. 7A).
b. Remove the screw securing the cover to the
powerhead (Fig. 7B).
c. Lift off the cover from the powerhead.
d. Remove the two screws securing the power-
head to the valve body (Fig. 6).
e. Lift the powerhead off the valve body.
4
SECURING
SCREW (2)
REMOVABLE
HEAD
SHAFT
REMOVABLE HEAD
VALVE BODY ASSEMBLY
M10173
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