Viper Service Manual
Publication Number: 621260373SER
- 56 -
© 2008-2016, Cornelius Inc.
CO
2
S
HUTOFF
S
OLENOID
R
EPLACEMENT
The CO
2
shutoff valves and solenoids, shown in Figure 46, are located near the center of the unit and are
mounted on a bracket to the bottom of the chassis. They control the injection of CO
2
with the syrup/water combi-
nation to provide the final mixture for the product. There are one of these solenoids for each barrel in the system.
When working in this area, care should be taken not to damage or misalign the CO
2
metering orifice. To replace
one of these solenoids, perform the procedure in Table 49.
Figure 46. Side View of CO
2
Shutoff Solenoid (2 Barrel Unit)
S
YRUP
AND
W
ATER
S
HUTOFF
S
OLENOID
R
EPLACEMENT
The syrup and water shutoff valves and solenoids are mounted on a single bracket, as shown in Figure 47. Per-
form the procedure in Table 50. to replace the valves.
Table 49.
Step
Action
1
Disconnect power from the unit.
2
Disconnect the CO
2
supply from the unit.
3
Remove the rear cover and side panels.
4
Carefully remove the tubing from the right-angle fitting at the rear of the valve.
Be sure not to damage the CO
2
metering orifice located above the fitting (Fig-
5
Remove the tubing from the front of the valve.
6
Remove the two (2) locknuts mounting the valve and solenoid to the base.
7
Remove the two (2) mounting screws from the bottom of the mounting bracket.
8
Replace the valve and solenoid.
9
Reverse the procedure to reinstall the valve and solenoid into the unit.
10
Test the unit for CO
2
leaks.
11
Replace the rear and side panels.
12
Reconnect power to the unit.
CO
2
Metering
Orifice
CO
2
Shutoff
Solenoid
CO
2
Shutoff
Valve
