17
BIOCLASS iC 66
2.10.3
Installation with Sanit DHW tank before BT tank and control by temperature
(P.08 = 3)
In this installation mode, all heating circuits, as well as the circuit for producing DHW by accumulation,
if present, must be hydraulically connected to the BT buffer tank. In other words, as shown in the
following hydraulic diagram, the BT buffer tank is connected to the boiler, interposing a circulation
pump (
Bbt
), and all the heating circuits of the system are connected to the BT tank. The temperature
of the BT tank is controlled and managed by a thermostat (
Tbt
) installed and immersed in the buffer
tank and electrically connected to the boiler. The temperature control thermostat is not supplied by
DOMUSA TEKNIK but can be purchased at any specialist central heating supplies warehouse.
Heating
installation
+ DHW
After the hydraulic installation of all the system components, proceed as follows to carry out the correct
electrical connection of the BT buffer tank to the
BioClass iC 66
boiler:
•
Unplug the boiler from the mains power.
•
Disconnect the electrical resistance (
Rbt
) connected between terminals
18
and
19
of
connection strip
J7
(see "Connection Diagram")
.
•
Connect the NC contact (normally closed) on the BT tank control thermostat on the sensor
connection strip
J7
(
Sbt
; terminals
18
and
19
)
(see "Connection Diagram").
•
Insert the thermostat bulb into the bulb-holder sheath provided in the buffer tank.
•
Connect the BT tank feed pump to the component connection strip
J2
(
Bbt
; terminals
N
and
7
)
(see "Connection Diagram")
.
•
Connect the boiler to the mains power.
•
Using the control panel, access parameter
P.08
in the "Technician" menu
(see "Technician
Menu")
and set the value to "
3
".
Once the hydraulic and electrical connection described above has been completed, to adjust and
configure the BT buffer tank operation, carefully read the section
"Operation with a BT buffer tank"
in
this manual.
Содержание BioClass iC 66
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