Viper Installation, Service & Decommissioning Manual
© 2022, Marmon Foodservice Technologies Inc.
- 91 -
Publication Number: 620073146SER
CO
2
S
HUTOFF
S
OLENOID
R
EPLACEMENT
The CO2 shutoff valves and solenoids, shown in Figure 73, 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 CO2 with the syrup/water combination 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 CO2 metering orifice. To replace one of these solenoids, perform the
procedure in Table 76.
Figure 73. Side View of CO
2
Shutoff Solenoid (2 Barrel Unit)
In Step 1
, disconnect electrical power from the unit. Failure to disconnect the power could result in serious injury, death, or
equipment damage.
9
Reverse the procedure to install the new pump.
Table 76
Step
Action
1
Disconnect power from the unit.
2
Disconnect the CO2 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 CO2 metering orifice located above the fitting (Figure 73).
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 CO2 leaks.
11
Replace the rear and side panels.
12
Reconnect power to the unit.
Table 75
Step
Action
CO
2
Metering
Orifice
CO
2
Shutoff
Solenoid
CO
2
Shutoff
Valve
!
WARNING:
Содержание R-454C
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