Domestic Hot Water Functions - Fujitsu Super High Power Series Design & Technical Manual

3-6. Domestic hot water functions

Line Access
1600 U Operating mode
U Nominal setpoint
1610
The backup electrical system is required to reach this level.
1612 U Reduced setting
I Release of DHW load
24h/day: The temperature of the DHW is constantly maintained at the DHW comfort setting.
Heating circuit time program: The DHW is produced according to the programming for the ambient
temperature (with 1 hour in advance when switched on).
1620
Program 4/DHW: The DHW program is separate form the heating circuit program.
Off-peak tariff*: The electrical backup heating is only authorized to operate during the off-peak
period.
Time program 4/DHW or low-tariff *: The electrical backup heating is authorized to operate during
the comfort period or off peak.
*: Connect the "Power Provider" contact to input EX2. In the case of a day/night contract, the
electric backups for the DHW tank are subject to the power supplier's tariffs. Switching on the
electric backup for the DHW tank is only authorized during off-peak hours.
1640 I Legionella function
1641 I Legionella function periodically
1642 S Legionella function weekday
1644 S Legionella function time
1645 S Legionella function setpoint
1646 S Legionella function duration
1647 S Legionella function circuit pump
1660 S Legionella function weekday
3-6. Domestic hot water functions
Function
Off, On, Eco
Reduced setpoint (line 1612)...65 °C 55°C
8 °C...Nominal setting (line 1610)
24h/day
Heating circuit time program
Program 4/DHW
Off-peak tariff (Off-peak)
Program 4/DHW and Off-peak
Off, Periodically (depending line
setting 1641), Fixed weekday
(depending line setting 1642)
1 to 7
Monday, Tuesday,...
Off, On
Time program 3/HCP, DHW release,
Time program 4/DHW, Time
program 5
- (03-30) -
Setting range or display
Factory
setting
On
Program
4/DHW
Off
7
Saturday
Off
DHW release
3. Function table