DAYLIFF ULTRASUN UFD320DL Manuel d'installation et d'utilisation - Page 12
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INDIRECT SYSTEMS
PROBLEM
Heated water
loss
Inoperative
electric heater
Water discharge
from pressure
release valve
Insufficient
pressure
POSSIBLE CAUSE
Leaking water pipes
Power supply or booster switch off
Blown fuse
Tripped circuit breaker
Thermostat failure
Low thermostat setting
Faulty electric element
Pressure above 3 bar
High mains pressure
Pressure is below specification settings
Pressure feedback from another device
Inlet water strainer blocked
Unit supply pipework blocked or
undersized
Mains supply pressure below 1 bar
Pressure control valve flow insufficient
for user's requirements
SOLUTION
Check regularly for leaks and repair
Switch on power or booster switch
Replace fuse
Switch on the breaker
Replace the thermostat
Adjust the thermostat
Check element circuit continuity and
replace the element if faulty
Lift valve hand lever and reset valve
Use a pressure tank to regulate and
reduce pressure levels
Replace the valve if discharge
continues
Check that there is no feedback
pressure from another device
connected to hot reticulation
circuit
Unblock the strainer
Unblock the pipe work
Replace with correct pipework
Consult
modifications to the system
Install a large valve but should not
exceed rated tank pressure of 3.5
bar
9
supply
authority
for