Valley VRI-iS, Installation Manual

Page: 27 / 102

27
Installation Instructions
Install Sprinkler Valves
• The sprinkler valve is installed horizontally with
or without drops. For installations without drops,
the VRI prescription must be off when running the
machine before shutting down prior to freezing
weather conditions.
• Use pipe sealant on all threads.
Sprinkler Valve without Pressure Switch - plumb-
ing configuration is shown in Figure 27-1.
1. Install one 3/4 in x 4 in nipple and one 3/4 in
street elbow between the valve inlet and the
sprinkler outlet on the pipe.
2. Install one 3/4 in street elbow in the valve outlet
and connect sprinkler drop to street elbow.
3. Continue with Connect Cables on this page.
Sprinkler Valve with Pressure Switch - plumbing
configuration is shown in Figure 27-2.
1. Install one 3/4 in x 4 in nipple and one 3/4 in
street elbow between the valve inlet and the
sprinkler outlet on the pipe.
2. Install one 3/4 in x 2 in nipple, 3/4 in tee, 3/4 in
x 1/4 in reducing bushing and pressure switch to
the valve outlet and connect sprinkler drop to the
3/4 in tee.
3. Connect the pressure switch cable to the SEN-
SOR port on valve.
4. Continue with Connect Cables on the next page.
1
2
3
4
3
Figure 27-1 1. Sprinkler Outlet
2. 3/4 X 4 Nipple
3. 3/4 Street Elbow
4. Sprinkler Drop
2
5
8
1
4
7
10
3
6
9
Figure 27-2 1. 3/4 X 4 Nipple
2. 3/4 Street Elbow
3. Sprinkler Outlet
4. 3/4 X 2 Nipple
5. 3/4 Tee
6. 3/4 X 1/4 Reducing Bushing
7. Pressure Switch
8. Sprinkler Drop
9. Pressure Switch Cable
10. Sensor Port
NOTE
• For PolySpan valve mounting configuration
refer to field install part number 9313117 on
page 49.