Riello GITRE Series - Page 50

50
COMMISSIONING AND MAINTENANCE
ONLY FOR GITRÈ B/100 MODELS
FAULT CAUSE SOLUTION
The storage cylinder safety valve keeps
opening
Storage cylinder safety valve − Check valve setting and efciency
Incorrect DHW circuit pressure − Check DHW circuit pressure
DHW circuit expansion vessel
− Check the efciency of the expansion
vessel
The DHW pump is not working
DHW pump problem
− Check/unseize the pump
− Check the electrical connection be-
tween the pump and the control panel
Storage cylinder temperature sensor
problem
− Check the positioning of the storage
cylinder temperature sensor
Insufcient domestic hot water
Incorrect pressure in DHW circuit − Fit a pressure limiter
Lime scale or deposits in storage cylinder
− Check and clean as necessary
− Check the setting of the storage cylinder
thermostat
Storage cylinder thermostat
− Check the setting of the storage cylinder
thermostat