User manual
49
Service setting manual
ENG
Para-
meter
Parameter name Parameter description Setting
range
Default
setting
S4.2 HYSTERESIS FOR D. H.
W. WARMING
Setting of difference between switch-on and switch-off point
for domestic hot water warming.
2 ÷ 20 °C
6
S4.3 MAX. D. H. W. TEMPE-
RATURE
Setting of max. allowed d. h. w. temperature. If this tempe-
rature is exceeded the warming will stop unconditionally.
50 ÷ 90 °C
80
S4.4 D. H. W. OVERHEATING
PROTECTION
Setting of overheating protection for d. h. w. storage tank.
If maximal d. h. w. temperature by warming with solar
collectros or solid fuel boiler is exceeded (S4.3), controller
activates (when possible) cooling:
1- into collectors
2- into boiler
3- into collectors and boiler
0- OFF
1- COLLEC-
TORS
2- BOILER
3- BOTH
0
S4.5 LEGIONELLA - ACTIVA-
TION
Activation of legionella function. 0- NO
1- YES
0
S4.6 LEGIONELLA - ACTIVATI-
ON DAY
Setting of day when the legionella protection should
activate.
1- MON
2- TUE
3- WEN
4- THU
5- FRI
6- SAT
7- SUN
5
S4.7 LEGIONELLA - ACTIVATI-
ON TIME
Setting of hour when the legionella protection should
activate.
0 ÷ 23 h
5
S4.8 MIN. D. H. W. TEMP. BY
WARMING WITH SOLID
FUEL BOILER OR HEAT
ACCUMULATOR
Controled heat source (oil boiler, heat pump, electric
heater) will not activate if d. h.w. can be warmed to min.
temperature with solid fuel boiler or heat accumulator. Set-
to requested temperature:
6- with delayed switchover to controlled heat source
7- without delayed switchover to controlled heat source
1- 45 °C
2 - 5 0 ° C
3- 5 5 °C
4- 6 0 °C
5- 65 °C
6- OFF,
DELAY
7- OFF,
WITHOT
DELAY
3
S4.10 REQ. D. H. W. TEMP. BY
WARMING WITH COLL-
ECTORS OR SOLID FUEL
BOILER
With this setting is set requested d. h. w. temperature if it is
being warmed with solid fuel boiler or solar collectors.
50 ÷ 90 °C
70
S4.11 MIN. AMBIENT TEMP.
FOR D. H. W. HEAT PUMP
D. h. w. is warmed only with heat pump if ambient tempera-
ture is above the set point temperature . D. h. w. warming
from central heating system will activate when the ambient
temperature drops bellow set-point temperature. Set para-
meter S1.4=8 (for sensor T1) or S1.5=11 (for sensor T8) to
activate this function.
5 ÷ 30 °C
16
S4.12 D. H.W. WARMING PUMP
SWITCH-OFF DELAY
Setting of d. h. water warming pump switch-off delay after
d. h. w. was warmed.
0 ÷ 10 min
5