Checks Before Commissioning - Unical ALCON Instrucciones De Uso

N - Thermometer / Fault symbol display
P - "Chimneysweeper" function indicator led

4.2 - CHECKS BEFORE COMMISSIONING

1 Make sure the gas
is open.
2 Check that any
and return are open.
3 Check that the
domestic cold water inlet is open.
4 Check that the safety valves outlet has been connected
to the drains.
5 Check that the boiler is powered electrically; the display
( ) on the control panel must be lit up.
Only for boiler equipped with pressure encoder:
6
Check on display (A), the water pressure,
For boiler NOT equipped with pressure encoder:
Check on the manometer (external to the boiler) the
water pressure,
for optimum operation, the pressure should be between
0.8 and 1 bar (with pump stopped).
Should the pressure be lower than 0.7 bar with the sys-
tem cold, restore pressure by opening the system
tap.
6
Displays:
- DHW Temperature
(*) (during sampling)
- DHW set Temperature (*)
(By pressing PURPLE button ''C''
- CH Temperature (during sampling)
- CH return Temperature
(By pressing LIGHT BLUE "D" and
BLUE "S")
- set Temperature CH
(By pressing YELLOW button "B")
- Error code (By pressing
LIGHT BLUE ''D'' )
This indicator led will illumina-
te when the "Chimneysweeper"
function is activated by a
professional serviceengineer. This
means that the boiler will be forced
to operateat the maximum (or
minimum) output so as to permit
the adju-stment operations and the
combustion analysis.
valve upstream of the boiler
valves for maintenance, on the
valve, for maintenance, on the
4.3 - BOILER OPERATION
Heating Mode
Press the BLUE "S" key and select the mode:
Heating (the green indicator leds "F" will illuminate).
Adjust CH heating temperature holding down YELLOW button
''B'' and simultaneously press PLUS (+)
(-) to descrease.
DHW Domestic Hot Water Mode (*)
Press the BLUE "S" key and select the mode: Summer (the
green indicator led "G" will illuminate) or Winter (the green
indicator leds "G" and "F" will illuminate).
Hold down the ''C'' key PURPLE and increase or decrease
the value by pressing the + (PLUS) or - (MINUS).
(*) Only for boilers with ACS kit, or connected to an external
tank.
o t n i c e r a s e r o M N I U S