Installer level - #SYSTEM menu
Parameter Adjustment range Description Factory setting Customer
setting
I.TEL
(1)
0/1 DHW
ON or OFF contact: I.TEL can be used as an antifreeze
activation inlet on circuit ECS
ANTIFR
0/1 A+DHW
ON or OFF contact: I.TEL: can be used as an antifreeze
activation inlet on circuits A+ECS
0/1 B+DHW
ON or OFF contact: I.TEL: can be used as an antifreeze
activation inlet on circuits B+ECS
0/1 A+B+DHW
ON or OFF contact: I.TEL: can be used as an antifreeze
activation inlet on circuits A+B+ECS
0/1 C+DHW
ON or OFF contact: I.TEL: can be used as an antifreeze
activation inlet on circuits C+ECS
0/1 A+C+DHW
ON or OFF contact: I.TEL: can be used as an antifreeze
activation inlet on circuits A+C+ECS
0/1 B+C+DHW
ON or OFF contact: I.TEL: can be used as an antifreeze
activation inlet on circuits B+C+ECS
0/1 AUX
ON or OFF contact: I.TEL can be used as an antifreeze
activation inlet on circuit AUX (S.AUX if the AD249
option is connected or the parameter O.PUMP A is set
to CIRC.AUX)
When I.TEL is not active, the auxiliary circuit (AUX)
follows the maximum boiler temperature (parameter
BOILER MAX).
(1) The parameter is only displayed if INSTALLATION is set to EXTENDED
(2) If the pump incorporated in the boiler is used for circuit A (parameter CIRC.A set to DIRECT), the MA outlet is free
(3) This setting cannot be modified
(4) The parameter is only displayed if the parameter O.PUMP A is set to CIRC.AUX or if the 3-way valve PCB option is connected
Influence of the parameter setting CT.TEL on the I.TEL contact
CT.TEL I.TEL
C contact closed C contact open
CLOSE ANTIFR
The antifreeze mode is active on all boiler circuits. The mode selected on the boiler is active.
0/1 A
The mode selected on the circuit is active. The antifreeze mode is active on the circuit
concerned.
0/1 B
The mode selected on the circuit is active. The antifreeze mode is active on the circuit
concerned.
0/1 A+B
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 C
The mode selected on the circuit is active. The antifreeze mode is active on the circuit
concerned.
0/1 A+C
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 B+C
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 A+B+C
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 DHW
The mode selected on the DHW circuit is active. The antifreeze mode is active for the DHW circuit.
0/1 A+DHW
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 B+DHW
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 A+B+DHW
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 C+DHW
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
0/1 A+C+DHW
The mode selected on the circuits is active. The antifreeze mode is active on the circuits
concerned.
Diematic iSystem For C 330 / C 630 ECO 5. Commissioning
31082018 - 7600691-001-06
36
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