DualTherm
34
10.2
Operation with a control thermostat in the BT buffer tank (P.08 = 3 or 4)
In this operating mode you must select the desired set point temperature of the boiler
(see
"Selecting the boiler set point temperature")
and, using the control thermostat installed in the
buffer tank, you must also select the desired set point temperature in the buffer tank.
It is essential
for the operation of the installation that the set point temperature selected for the boiler
exceeds the set point selected for the control thermostat of the buffer tank and it is
recommended that it be at least 5 to 10 °C higher
. The
DualTherm
boiler will start operation to
heat its water. When the boiler temperature exceeds 70 ºC the feed pump for the buffer tank (
Bbt
)
will start up to heat the BT tank, provided that its control thermostat is activated (demanding
heating). When the buffer tank thermostat reaches the desired temperature and turns off the
heating demand, operation of the buffer tank feed pump (
Bbt
) will be disabled. In the event that
there is a firewood load, the operation of the load pump will be activated until it is depleted.
Regarding the central heating service of the boiler, the circulation pump (
BC
) will be activated
whenever room thermostat No. 1 (
TA1
), or the remote control
LAGO FB OT+
(if present), demands
heating. In other words, when the room temperature where the thermostat or the remote control is
installed is lower than that which is set. When the atmosphere reaches the desired temperature and
after a time of post-circulation (parameter
P.15
in the "Technician Menu"), the operation of the
heating pump (
BC
) will turn off.
The boiler's central heating service can be totally disabled (
Summer
mode) by selecting a boiler
setpoint value of "
OFF
". In this operating mode, only the DHW production function will remain
enabled, providing there is a DHW tank connected to the tank (
P.08
=
3
) or to the boiler (
P.08
=
4
).
IMPORTANT: It is essential for the operation of the installation that the set point temperature
of the boiler exceeds the set point selected for the control thermostat of the
buffer tank.
NOTE: When the heating function is disabled, all the circuits of the BIO hydraulic Kit will also
be disabled, if connected.
NOTE: This operating mode is only activated when parameter P.08 of the "Technician" menu is
set to 3 or 4 and when there is a buffer tank installed.
Содержание Dualtherm 25
Страница 1: ...INSTALLATION AND OPERATING INSTRUCTIONS DUALTHERM ...
Страница 74: ...DualTherm 72 Boiler 2 3 4 5 7 10 9 15 16 20 21 8 17 18 19 1 6 14 11 13 12 23 28 31 29 27 25 24 22 30 26 ...
Страница 82: ...DualTherm 80 Electrical board Burner SELEDUA001 8 9 2 1 3 4 5 6 7 SELEDUA000 14 14 17 16 10 11 12 13 18 19 15 ...
Страница 90: ...DualTherm 88 NOTES ...
Страница 91: ...89 NOTES ...
