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MOUNTING
The valve can be mounted in any position on a vertical
line. If the valve is mounted horizontally; the
powerhead must be even with or above the center line
of the piping. Make sure that enough room is provided
above the powerhead to remove the cover for
servicing.
VERTICAL
PIPING
Fig. 3. Mounting positions.
Mount the valve directly in the tube or pipe. Make sure
that the flow through the valve is in the direction
indicated by the arrow stamped on the valve body.
WARNING
Read and understand all instructions for
installing the press connection. Failure to
follow all instructions may result in extensive
property damage, serious injury or death.
1
4
5
7
Fig. 4. Mounting procedure.
Reproduced with permission from Viega LLC (2018).
1. Cut copper tubing at right angles using
displacement-type cutter or fine-toothed steel
saw.
2. Remove burr from inside and outside of tubing
to prevent cutting sealing element.
HORIZONTAL
PIPING
2
8
V8043 ZONE VALVES WITH PRESS CONNECTION
3. Check seal for correct fit. Do not use oils or
lubricants.
4. Mark proper insertion depth as shown in Table 2.
Improper insertion depth may result in improper
seal.
5. While turning slightly, slide press fitting onto
tubing to the marked depth.
NOTE: End of tubing must contact stop.
6. Insert appropriate jaw into the pressing tool and
push in, holding pin until it locks in place.
7. Open the jaw and place at right angles on the
fitting. Visually check insertion depth using
mark on tubing.
8. Start the pressing process and hold the trigger
until the jaw has engaged the fitting.
9. After pressing, the jaw can be opened again.
10. Leak Testing with Smart Connect®:
Unpressed connections are located by
pressurizing the system with air or water. When
testing with water the proper pressure range is
15 psi to 85 psi maximum. Leak testing with air
can be dangerous at high pressures. When
testing with compressed air the proper pressure
M10162A
range is ½ psi to 45 psi maximum. Following a
successful leak test, the system may be pressure
tested up to 200 psi with air, or up to 600 psi with
water, if required by local code requirements or
project specifications.
Tube Size
Insertion Depth
WIRING
Disconnect the power supply before connecting wiring
to prevent electrical shock or equipment damage.
All wiring must comply with local codes and
ordinances. Connections to the individual valves are
shown in Fig. 5-6.
3
TO
LINE
YELLOW
LEADS
6
9
M37346
Fig. 5. Typical wiring for V8043A, V8043E.
3
Table 2. Insertion depth.
1/2 in.
3/4 in.
3/4 in.
7/8 in.
THERMOSTAT
TO CIRCULATOR
OR ANOTHER VALVE
MOTOR
AUXILIARY
SWITCH
1
NOT APPLICABLE FOR V8043A.
1 in.
7/8 in.
RED LEADS
1
M37335A
33-00402EF—09
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