Troubleshooting - Bradley S19-300T Manual Del Usuario

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
8
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
6/5/2017
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 • 215-1082 Rev. L; ECN 17-05-045
Installation