Flexiheat HDCS 10/15, Installation And Operating Instructions Manual

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7
5
FIRST START-UP
5.1
Filling the installation
Unscrew the circulating pump cap so that the rotation shaft is visible. Connect the boiler main
switch and check if the pump shaft is turning. Screw the cap back on.
If the shaft is not turning, switch off the boiler main switch and use a suitable screwdriver to turn
the pump shaft in both directions to unblock it. Turn on the main switch again and check the shaft
is turning. Screw the cap back on.
5.3
Bleed the air from the installation
Connect the boiler main switch and drain the air from the installation and the boiler using the
air vent valves provided in the installation and on the boiler.
6
INSTALLATION DELIVERY
The installer will explain how the boiler functions to the user, making all necessary observations
such as how to fill, bleed and drain the boiler.
6.1
Observations
If the boiler does not start up when you have checked that the power is reaching it, the
installation is filled with water at the correct pressure, the circulating pump is turning and the
boiler has not been cut out by the safety circuit breaker, turn off the main switch and contact the
installer.
7
OPERATION
7.1
Power setting selection
The total power to the boiler may be reduced by half, using the half-power switches on the
control panel. When both switches are connected, the boiler will function at maximum power.
7.2
Temperature selection
Use a filling valve to fill the installation slowly until the pressure shown on the thermo hydrometer is
between 1 to 1.5 bar.
5.2
Checking the circulating pump functioning
This is done using the control thermostat command on the control panel. Turn it clockwise for a
higher temperature, or anticlockwise for a lower temperature.
Models HDCD and HDCSM allows
the possiblity of selecting the heating temperature and the domestic hot water tank temperature.
When the selected temperature is reached, the thermostat automatically maintains a constant
temperature