The buffer operation mode with values defined in the next table available at the output ”OperationMode“.
It can be connected to a multistate point for display purposes or used in the control program.
Table 6. Operation Mode
OperationMode |
Function |
Comments |
1 |
buffer feed the system |
Discharging control and “ChgOverValve1” = buffer |
2 |
heat generator feeds the system |
Discharging control and “ChgOverValve1” = boiler |
3 |
buffer charging |
Charging control and buffer charging; transmit heat demand to heat generator |
4 |
buffer discharging |
Charging control and buffer discharging |
5 |
stop buffer loading at high outdoor temperatures |
“FilteredOATemp” > OAT-01 |
6 |
buffer overheat protection |
Charging control and (“BufUpperTemp” < OVHT-01 or “BufLowerTemp” > OVHT-02) |