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•
Refill the system from the filling loop, to a pressure between 1-1.5bar (0.1-0.15MPa) and operate the
pressure relief valve manually to check that water runs away correctly, and that the valve closes correctly.
•
Top up the system to 1.0bar (0.1MPa).
•
Disconnect the system from the filling loop.
•
Check the electric connections and that all covers etc. have been replaced. Turn on the electricity supply to
the boiler and allow the unit to do its self diagnosis. Refer to § 2.24 if a fault is displayed.
•
Use ethylene glycol only with incorporated corrosion inhibitor. Glycol ratia must be under 10%.
2.9 - Boiler Configuration
Once the boiler has initialised the feature options can be selected (see quick reference guide for options):
Press – and + together for 3 seconds to enter the selection menu. With reference to § 2.21 the top display
should show a flashing 01. Use the +/- keys to select the parameter to be changed and the tap or radiator keys
to change the setting of any selected parameter:
01
This setting should always be set to 1.
02
Select the maximum temperature of the water circulating in the heating circuit.
03
Select the minimum temperature of the water circulating in the heating circuit.
04
Select 1 if oprating from a switched live or if of room thermostat is installed and connected to
the boiler.
05
If 04 has been set to 1 this setting should also be set to 1.
06
If 04 has been set to 1 the boiler can automatically adjust the water temperature in the heating
circuit according to actual heat-up times of the property, overriding the minimum and maximum
water temperature settings. If this facility is required select 1, otherwise set 0.
07
This option should be set to 0.
08
n/a
09
n/a
10
n/a
11
The boiler can delay the switching on and off of the elements to provide a smooth power on-
off gradient and the number of on-off cycles in a short period. The delay between switches
operating can be set from 1 to 6 minutes. (default is 2 min)
12
Select 0 for central heating or floor heating only. (default is 0)
Select 1 if boiler connected to indirect hot water cylinder.
13
This setting should always be set to 0.
14
n/a
Press + & - together for 3 seconds to exit the set-up menu.
Ascari MA12 -p. 19 -
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Troubleshooting
