46
Service setting manual
ENG
Service settings for domestic hot water:
Param-
eter
Parameter name
Parameter description
Setting
range
Default
setting
S4.1
OUTPUT R5 FUNCTION
Setting of output R5 alternative operation mode.
1- operation according to selected hydraulic scheme
2- d. h. w. warming with electric heater
3- operation according to selected program timer for d. h.
w. warming.
4- control of primary boiler pump
5- output is used for d. h. w. circulation.
6- d. h. w. warming without temp. difference (by warming
with heat pump).
1- SCHEME
2- EL.
HEATER
3- PROG.
TIMER
4- PRIM.
PUMP
5- CIRCULA-
TION
6- WITHOUT
DIFF.
1
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. TEMPERA-
TURE
Setting of max. allowed d. h. w. temperature. If this tem-
perature 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 requested d. h. w. temperature by warming with
solar collectros or solid fuel boiler is exceeded (S4.10),
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 - ACTIVA-
TION 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 - ACTIVA-
TION 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-
ting 6 and 7 defines that d. h.w. should always be warmed
to requested temperature:
6- with delayed switchover to controlled heat source
7- without delayed switchover to controlled heat source
1- 45 °C
2- 50 °C
3- 55 °C
4- 60 °C
5- 65 °C
6- OFF,
DELAY
7- OFF,
WITHOT
DELAY
3
