MCZ Swing HYDRO - Manual (Page 28)

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12-SETTINGS MENU
OUTPUT AUX
The AUX output makes it possible to use a relay contact, based on the system configuration type chosen in the Aux Input menu.
It acts on contact 7-8-9 of the external terminal board.
The functions can only be selected if the boiler or puffer configuration has not been chosen in the Aux Input menu, and
are:
• Remote alarm (9-8=C-NO)
• Auxiliary boiler (9-7=C-NC) (SEE DIAGRAMS ON THE NEXT PAGE)
• Auxiliary output in temperature (9-8-7=C-NO-NC)
To enter the function press:
from the Settings menu- press ok (E key), press the D (arrow) key and scroll up to the Aux Output item and press OK (E key). Using the “C”
and “D” keys to select the Remote Alarm/Aux boiler/Output in temp and press OK ("E" key).
• If the Aux output is set on Remote Alarm, the NO contact is closed when an alarm is present.
• If the Aux output is set to Auxiliary Boiler, the NC contact remains closed in all alarm states, in = "OFF" state, in 80 “Shutdown” state,
and in 51 “COOL” state. Under all conditions it remains open.
• Output temperature: the NO contact closes when the Boiler temperature exceeds the value set by the user. It can be set from 30 to 60,
it is used, for example, to disconnect the aux boiler above a certain temperature (using the NC contact) or to start an external pump
at temperature (using the NO contact)
• If the boiler configuration has been chosen, the Aux contact is set on “Three-way boiler valve”: the contact changes when there is a
heat request from the boiler.
• If the Puffer configuration has been chosen, the Aux contact is set on “Pump control”: the NO contact closes when there is a heat
request from the Room PROBE
B
E
INFO OK
C
D
B
EXIT
SET AMBIENT INPUT AS A PROBE OR
THERMOSTAT.
(TERMINALS 3 - 4)
SETTINGS-OUTPUT AUX
ALARM
REMOTE
EXIT
TEMP.
BOILER
AUX