DeDietrich Innovens MCA 15, Installation And Service Manual

Page: 76 / 144

"Installer" level - #SYSTEM menu
Parameter Adjustment range Description Factory setting Customer
setting
I.TEL:
(1)
ANTIFR
Start anti-freeze in boiler command
ANTIFR
0/1 A
ON or OFF contact:
I.TEL:
can be used as an
antifreeze activation inlet on circuit A
0/1 B
ON or OFF contact:
I.TEL:
can be used as an
antifreeze activation inlet on circuit B
0/1 C
ON or OFF contact:
I.TEL:
can be used as an
antifreeze activation inlet on circuit C
0/1 DHW
ON or OFF contact:
I.TEL:
can be used as an
antifreeze activation inlet on circuit ECS
0/1 AUX
ON or OFF contact:
I.TEL:
can be used as an
antifreeze activation inlet on circuit AUX (
S.AUX
if
option *1 is present or outlet
O.PUMP A
is configured
as
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
parameter is set to
EXTENDED
(2) If the pump incorporated in the boiler is used for circuit A (parameter
CIRC.A
set to
DIRECT
), the
O.PUMP A
outlet is free
(3) This parameter is displayed only if the
O.PUMP A
parameter is set to
CIRC.AUX
or if the 3-way valve PCB option is used
Influence of the parameter setting CT.TEL on the I.TEL contact
CT.TEL I.TEL:
I.TEL contact closed I.TEL 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 C
The mode selected on the circuit is active. The antifreeze mode is active on the circuit
concerned.
0/1 DHW
The mode selected on the DHW circuit is active. The antifreeze mode is active for the DHW circuit.
0/1 AUX
4
The
M
AUX outlet on the connection terminal
block is active.
4
The boiler operates at a set point temperature
equal to
BOILER MAX
.
4
The
M
AUX outlet on the connection terminal
block is not active.
4
The boiler operates with a set point temperature
as a function of the outside temperature.
OPEN ANTIFR
The mode selected on the boiler is active. The antifreeze mode is active on all boiler circuits.
0/1 A
The antifreeze mode is active on the circuit
concerned.
The mode selected on the circuit is active.
0/1 B
The antifreeze mode is active on the circuit
concerned.
The mode selected on the circuit is active.
0/1 C
The antifreeze mode is active on the circuit
concerned.
The mode selected on the circuit is active.
0/1 DHW
The antifreeze mode is active for the DHW circuit. The mode selected on the DHW circuit is active.
0/1 AUX
4
The
M
AUX outlet on the connection terminal
block is not active.
4
The boiler operates with a set point temperature
as a function of the outside temperature.
4
The
M
AUX outlet on the connection terminal
block is active.
4
The boiler operates at a set point temperature
equal to
BOILER MAX
.
5. Start-up MCA 15 - MCA 25 MCA 25/28 MI
74 29/04/2010 - 300022146-001-B