5. Select the operating mode for the buffer tank.
Buffer tank operating mode
Adjustment required
Buffer tank used as a low-loss
header.
By default, the buffer tank is managed as a low-loss header and does not require any spe
cific settings. The temperature set point for the buffer tank is equal to the maximum set
point temperature value taken from all the associated circuits.
Example: with the temperature set points of CIRCA1: 22 °C, CIRCB1: 21 °C and CIRCC1:
20.5 °C, the buffer tank set point will be: (Maximum temperature for CIRCA1, CIRCB1,
CIRCC1) = 22 °C.
Buffer tank used in storage mode Configure the buffer tank load.
See chapter: Configuring the buffer tank for storage, page 63
9.2.10 Configuring the buffer tank for storage
The buffer tank is used to store energy either via the buffer tank timer
programme or by a contact connected to the TEL digital input. The buffer
tank must be installed and configured with one or two temperature
sensors.
1. Program the load timers for the buffer tank.
Tab.55
Access
Adjustment required
> Installation Setup > Buffer tank > Buffer Tank Schedule
Program the Operating activity which will activate the buffer
tank load.
2. If necessary, configure and program the TEL digital input.
Tab.56
Access
Parameter
Description
Adjustment required
> Installation Setup >
Digital input > Parameters
Digital input config
(EP046)
Sets the general configuration of
the digital input
Buffer Tank input
Logic level Digi In
(EP056)
Sets the logic level contact of
the Smart Control Board digital
input
Open: Buffer tank load
when the contact is
opened.
Closed: Buffer tank load
when the contact is
closed.
3. Select the set point temperature control mode for the buffer tank load:
Tab.57
Access
Parameter
Description
Adjustment required
> Installation Setup >
Buffer tank
Buff Tank HC Strat.
(BP002)
Heating Cooling Control
strategy used with buffer tank
Fixed setpoint
Calculated setpoint
Dedicated slope
On
Fig.66
MW
-1001294-1
SCB-10
9 Settings
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