RED COMPACT 35 Installation And User Manual page 27

5-PLUMBING CONNECTION
To fill the system, the hydraulic kit (optional) is fitted with a tap, with a check valve, to load the heating system manually.
During this operation, any air in the system is released via the air valve located in the upper part of the boiler.
To ensure the valve vents, it is advisable to loosen the side cap (see figure)
The filling pressure of the system WHEN COLD must be 1 bar.
Upon completion of this filling operation, always close the loading tap.
AIR VALVE WITH SIDE CAP
LOOSENED BY 1 TURN
THERMOSTATIC DIVERTER VALVE (COMPULSORY)
The automatic thermostatic diverter valve is used in solid fuel boilers to prevent the return of cold water into the exchanger which would
cause condensation to form.
The prolonged formation of condensation irreparably damages the heat exchanger.
The lack of a device to prevent this invalidates the guarantee.
A higher return temperature reduces the formation of condensation of the fumes and extends the life of the boiler.
Valves available offer various calibrations. RED recommends the model (see accessories list) at 55°C.
Once the calibration temperature is reached, the valve opens providing hot water to the system.
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