Fondital KR 55, Инструкция по установке и использованию

Страница: 27 / 44

27
3.2.7. Testing combustion efficiency
3.2.7.1. Chimney-sweep function
The boiler has a chimney-sweep function to be used when testing combustion efficiency and regulating the burner.
To activate this function, open the front part of the casing for access to the controls. To do this, proceed as follows:
• Unscrew two of the four screws securing the casing – either those on the left or those on the right.
• Open the casing.
• Remove the control panel mask by pulling the hooks on either side outwards and pulling the mask towards you (Fig. 14).
The control panel layout is shown in Fig. 15.
With selector 2 (Fig. 1) on WINTER, the room thermostat (if there is one) ON, and the boiler in operation, press the chimney-sweep button
(Fig. 15) for a few seconds. The boiler turns off, performs the ignition sequence and runs at a preset stable heat output corresponding
to the maximum setting (Fig. 15).
The chimney-sweep function operates for 15 minutes.
To exit chimney-sweep mode, turn selector
2 to any position other than WINTER and then to the desired setting.
fig. 14
fig. 15
KR 55
KR 85
maximum length must be reduced by 3.3 metres.
For each additional 45° elbow on the air intake pipe the maximum
length must be reduced by 2 metres.
For each additional 45° elbow on the flue gas dischage pipe the
maximum length must be reduced by 1 metre.
The roof terminal decreases the maximum length by 1 metre.
The wall terminal decreases the maximum length by 1 metre.