User Guide

MAINTENANCE MANUAL MODELS 825Y, 825YA, 825, 825D, 825YD & 826YD

1. If the unit is installed where vandalism may be a problem, the

assembly should be protected and secured. On 3/4–2" units

the handles of shutoff valves can be removed to discourage

tampering. On 2

/2–10" units a chain can be looped between

shutoffs and locked in position to prevent tampering with

shutoff valves. Test cock handles can also be removed. On

backflow prevention assemblies installed in conjunction with

fire sprinkler systems, an alarm can be placed on the OS&Y

shut-off valves that will sound if unauthorized closure should

occur.

2. A protective cage can be installed over the unit to discourage

vandals. If a cage is used, it should be installed so that ade-

quate clearance is available for maintenance and testing or it

should be completely removable. Also allow for any discharge

from the relief valve to fully drain from the protective cage.

3. Some units include screw driver adjusted test cocks for vandal

resistance.

Vandalism Protection Procedure