Troubleshooting - Bradley S19-300T Manuel D'installation

S19-300T, S19-300B

Troubleshooting

Problem
Low water flow at drench
shower and eyewash
Low water flow at drench
shower or eye wash
Freeze-protection valve is
flowing water
Scald-protection valve is
flowing water
6
Cause
Insufficient pressure
Undersized supply piping
Debris in system
Power supply is off [if the
water temperature from the
valve is below 45°F (7°C)]
Water supply is too cold
Defective thermostat [if the
water temperature from the
valve is below 45°F (7°C)]
Defective freeze valve [if the
water temperature from the
valve is above 45°F (7°C)]
Defective scald valve [if the
water temperature from the
valve is below 80°F (27°C)]
Direct sunlight or high
ambient temperature
Defective thermostat
9/26/08
Solution
Minimum 30 GPM required
Increase pressure/pipe size
Disassemble the showerhead, clean and reassemble
Unscrew the eyewash heads from the yoke, clean and
reassemble. If still clogged, replace the heads.
Turn the power on.
Make sure the unit is supplied with tempered water.
Check continuity and replace if check fails activates at 50°F
(10°C) (factory-set).
Replace the freeze valve
NOTE: A water supply that is at least 45°F (7°C) or colder will
hold the freeze bleed valve open. To close the valve:
1. turn the water off temporarily or plug the valve until the
heat trace unit's heat warms the valve
2. increase the surface temperature of the valve to above
45°F (7°C) by immersing the valve in hot water
IMPORTANT: Make sure that the heat trace unit is
operating properly before plugging the freeze bleed valve.
A plugged valve will not provide backup freeze protection
should the heat trace unit fail.
Replace the scald valve.
Cool the unit.
Check continuity and replace if check fails activates at 50°F
(10°C) (factory-set).
Bradley Corporation • 215-1082 Rev. F; ECN 08-521
Installation