"Installer" level - #SYSTEM menu
Parameter
Adjustment range Description
Factory setting Customer
setting
O.PUMP A
(1)
(2)
CH.PUMP A
Heating pump circuit A: The
PUMP A
outlet is used to
control the pump on circuit A
CH.PUMP A
CIRC.AUX
Used to resume the functions of the
S.AUX
parameter
without adding the "PCB + sensor" option (Package
AD249)
DHW LOOP
Used to control the domestic hot water looping pump
according to the DHW timer programme and force its
operation during an override
PRIMARY PUMP
The outlet
PUMP A
is active if a heating demand is
present on the secondary pump
ORDER BURNER
The outlet
PUMP A
is active when a burner demand
is present
FAILURE
The outlet
PUMP A
is active if an error is detected
O.DHW:
(1)
PUMP
Using a tank load pump on the DHW PUMP outlet
RV
RV
Use of a reversal valve for DHW production
S.AUX:
(1)(3)
DHW LOOP
Use as a domestic loop pump
DHW LOOP
PROGRAM.
Use as an independent programmable outlet
PRIMARY PUMP
The outlet
AUX PUMP
is active if a heating demand
is present on the secondary pump
ORDER BURNER
The outlet
AUX PUMP
is active when a burner
demand is present
DHW
Use of primary circuit of second DHW tank
FAILURE
The outlet
AUX PUMP
is active if an error is detected
DHW ELEC
Used to control the electrical resistor according to the
timer programme on circuit AUX in summer mode
I.SYST
(1)
SYSTEM
The inlet sensor is used to connect the common flow
sensor of a cascade system
SYSTEM
STORAGE TANK
Hot water storage tank affected to heating only
DHW STRAT
Using the DHW tank with 2 sensors (top and bottom)
ST.TANK+DHW
Hot water storage tank affected to heating and
domestic hot water
O. TEL:
(1)
FAILURE
The telephone outlet is closed in the event of failure
FAILURE
REVISION
The telephone outlet is closed in the event of revision
display
DEF+REV
The telephone outlet is closed in the event of failure or
revision display
CT.TEL
(1)
CLOSE
See table below.
CLOSE
OPEN
(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
MCA 15 - MCA 25 MCA 25/28 MI
5. Start-up
29/04/2010 - 300022146-001-B
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