Ariston ACO 27 MFFI Installation And Servicing Instructions - Page 41

Browse online or download pdf Installation And Servicing Instructions for Boiler Ariston ACO 27 MFFI. Ariston ACO 27 MFFI 49 pages. Aco series

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Model 27/32 RFFI SYSTEM
COMFORT
SELECTOR ON/OFF:
yellow L.E.D . on
NO:
NO:
COMFORT OFF
COMFORT OFF
D.H.W.
IS BEING
DRAWN?
BUILT-IN
ELECTRONIC
ANTI-FROST DEVICE:
Is there a condition for it to be active?
(flow temp between 3C & 8C)
- PC0 continuous pump
operation selected on
menu
THERE IS NO CALL FOR PUMP OPERATION
56
1. There is sufficient water in the system
2. The gas is turned on
3. The electrical supply is turned on
PRESS THE ON/OFF BUTTON
YES
YES
DOES AN ERROR CODE
TABLE
APPEAR ON THE DISPLAY?
I and II
SUMMER
SUMMER
YES: COMFORT ON
YES: COMFORT ON
Flow
temperature
<36C
NO
NO
Flow
temperature
>42C
YES
YES
YES
YES
NO
NO
YES
YES
NO
NO
MAKE SURE THAT:
TO THE ON POSITION
IS THE
DISPLAY ON?
NO
YES: COMFORT ON
YES: COMFORT ON
YES
YES
YES
YES
Flow
temperature
<36C
NO
NO
NO
NO
NO
NO
Flow
temperature
>42C
YES
YES
YES
YES
YES
YES
THERE IS NO CALL FOR PUMP OPERATION
A
NO
NO
1. Check the fuses
2. Check the power supply to
the control panel
3. Check/replace the
ON/OFF button
4. Check the connection between
the main and display P.C.B.s
5. Check/replace the
main and display P.C.B.s
WINTER
WINTER
COMFORT
SELECTOR ON/OFF:
yellow L.E.D. on
NO:
NO:
COMFORT OFF
COMFORT OFF
D.H.W.
YES
YES
IS BEING
DRAWN?
NO
NO
IS THE
THE TIME CLOCK
AND/OR ROOM THERMOSTAT
BE ACTIVATED?
NO
NO
BUILT-IN
ELECTRONIC
ANTI-FROST DEVICE:
Is there a condition for it to be active?
(flow temp between 3C & 8C)
- PC0 continuous pump
operation selected on
menu
NO
NO