Maintenance
Instruction Manual DR-FC
9
gis
1.5
Maintenance
A service should be carried out at least once a year, both on the water side and
on the gas side. Maintenance frequency depends, among other things, on the
water quality, the average burning time per day and the set water temperature.
n
Remark
To determine the correct maintenance frequency, it is recommended to
arrange for the service and maintenance engineer to check the water heater
on both the water and gas side, three months after installation. Based on this
check, the best maintenance frequency can be determined.
n
Remark
Regular maintenance extends the service life of the water heater.
1.6
Forms of notation
The following notation is used in this manual:
n
Remark
Important information
c
Note
Ignoring this information can lead to the water heater being damaged.
Warning
Failure to carefully read this information may lead to danger of personal
injury, and serious damage to the water heater.
Summary of Contents for DR-FC 25
Page 2: ...2...
Page 16: ...Functioning of the water heater 16 Instruction Manual DR FC 2 gis...
Page 42: ...Filling and draining 42 Instruction Manual DR FC 4 gis...
Page 46: ...The control panel 46 Instruction Manual DR FC 5 gis...
Page 50: ...Status of the water heater 50 Instruction Manual DR FC 6 gis...
Page 56: ...Starting up and shutting down 56 Instruction Manual DR FC 7 gis...
Page 68: ...Main menu 68 Instruction Manual DR FC 8 gis...
Page 72: ...Service program 72 Instruction Manual DR FC 9 is...
Page 88: ...Troubleshooting 88 Instruction Manual DR FC 10 gis...
Page 90: ...Maintenance frequency 90 Instruction Manual DR FC 11 gs...