Fujitsu WSYA050ML3 Design & Technical Manual page 92

DHW Holiday
mode status
Off ×
On Yes
On No
On No
On No
On No
On No
On No
On No
×: N/A
NOTE: Release by low-tariff input always triggers forced DHW charging. If the low-tariff input EX2
has not been configured and release via OPK has nevertheless been set, the DHW level
will either continuously remain on reduced or will follow time program 4.
• Legionella function
– Legionella function:
• Periodically
The legionella function occurs repeatedly according to the adjusted periodicity (line 1641).
• Fixed weekday
The legionella function can be activated on a fixed day of the week (line 1642). With this set-
ting, heating up to the legionella setpoint occurs on the scheduled day of the week, regardless
of the storage tank temperatures during the previous period.
3-6. Domestic hot water functions
Release
(Line 1620)
×
×
...
Low-tariff (OPK)
Low-tariff (OPK)
Time program 4 or OPK
Time program 4 or OPK
Time program 4 or OPK
Time program 4 or OPK
Line
1640 Legionella function
1641 Legionella function periodically
1642 Legionella function weekday
Time program
status
(Program 4)
×
×
...
×
×
Nominal
Reduced
Nominal
Reduced
Function
- (03-34) -
Low-tariff
status DHW mode level
(EX2)
× Frost protection
× Frost protection
× ...
Inactive Reduced
Active Nominal
Inactive Nominal
Inactive Reduced
Active Nominal
Active Nominal
3. Function table