Ariston Fi7 16L FF, Service Manual

Page: 5 / 57

Technical Manual for DGI
- 5 -
The user can choose the most optimization section to burn and adjust the water flowrate. Thus it can
meet user’s demand for temperature adjustment within broad range around the year.
4. Vertically removable filter
：
Mount the removable filter to the inlet of cold water considering water conditions in different areas.
The purpose is to prevent foreign matters from entering into the water pipe and ensure normal
operation of water heater.
5. Start up at low water pressure
Adopt magnetic flowrate button to initiate super low pressure starter, the Min. startup water flowrate
is 3L/min, available for area with low water pressure and high-rise.
6. Design of ignition delay
Unique design of ignition delay can guarantee high ratio of successful ignition of water heater and
small ignition noise.
7. Safety protection at instant power failure or voltage reduction
Maintain normal operation or stop the water heater safely if power network reduces voltage or cuts
off power supply instantly.
8. Multiple protections for more safe operation
z
Automatic flameout protection
Water heater disconnects gas supply automatically if accident flameout occurs during operation
thus to avoid gas leakage and ensure safety and reliability.
z
Overtime use protection
Gas supply is automatically disconnected and burner is extinguished after continuous use for 30
±
3min. If continuous use is required, close the hot-water valve then open it in several seconds,
by then re-ignition is available.
z
Forced air-blast burning design
Exhaust all fame outside with qualified AC blower for safety operation.
z
In addition there is excess-heat protection, relief of excess water pressure, anti-freezing
protection, fan stop prevention, dry heating prevention and fume exhaust hose blockage
prevention to ensure water heater run at the normal condition.
1.2.2 Fi7/Gi7S
1. Beautiful outlook
Treat the surface with several hi-tech finishing technologies. Match various designs of modern
kitchens. Boast compact structure and small body. Greatly save the installation space.
2. Intelligent wide-extent constant temperature
The micro-computer surveils the temperature and flux of water, and cooperates with the proportion
valve to keep the temperature of out-let water stable.