MCZ Duo HYDRO AIR - Manual (Page 29)

29
12-SETTINGS MENU
Technical Dept. - All rights reserved - Reproduction is prohibited
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 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)
• 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 at temperature: the NO contact closes when 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 fixed at “Valvola tre vie bollitore” (Three-way boiler valve): the contact
switches when a heat request is received from the boiler.
• If the Puffer configuration has been chosen, the Aux contact is fixed at “Comando pompa” (Pump Control): the NO contact closes
when a heat request is received 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