4
S19-876 Installation
1/12/11 Bradley Corporation • 215-1279 Rev. C; ECM 10-05-011A
Troubleshooting
Problem Cause Solution
Low water flow at drench
shower and eyewash
Insufficient pressure
Undersized supply piping
Minimum 30 GPM required
Increase pressure/pipe size
Low water flow at drench
shower or eye wash
Debris in system Disassemble the showerhead, clean and reassemble
Unscrew the eyewash heads from the yoke, clean and
reassemble. If still clogged, replace the heads.
Freeze-protection valve is
flowing water
Power supply is off [if the
water temperature from the
valve is below 45°F (7°C)]
Turn the power on.
Water supply is too cold Make sure the unit is supplied with tempered water.
Defective thermostat [if the
water temperature from the
valve is below 45°F (7°C)]
Check continuity and replace if check fails activates at 50°F
(10°C) (factory-set).
Defective freeze valve [if the
water temperature from the
valve is above 45°F (7°C)]
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.
Scald-protection valve is
flowing water
Defective scald valve [if the
water temperature from the
valve is below 80°F (27°C)]
Replace the scald valve.
Direct sunlight or high
ambient temperature
Cool the unit.
Defective thermostat Check continuity and replace if check fails activates at 50°F
(10°C) (factory-set).
