Technical data
35
08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI
1.2 Water and gas connections
First check that the water is circulating in the boiler (water pressure
in the heating circuit, outlet and return valves open, valves and
radiators open, etc.).
Opening the valve
Open the valves on all radiators connected to the heating system.
Fill the installation with water (Minimum pressure: 1 bar, Maximum
pressure: 2.5 bar).
When filling, air may escape from the system via the automatic air
bleed and the pump.
Use the bleed plugs provided, which are attached to the gas
valve unit in the event of water leakage.
Do not allow water to get into the boiler.
Check the condensates discharge siphon; it must be filled with clean
water up to the mark.
Check the boiler pump. Remove the central chrome screw to bleed
the pump.
Carry out a water tightness check.
Measuring point on the gas block (C)
Open the gas valve.
Checking the gas supply pressure: Measurement point C.
Z
Recommended pressure: See "Certifications".
Carry out a gas tightness check. Maximum pressure: 60 mbar.
For Belgium: Maximum pressure: 100 mbar.
Bleed the gas supply pipe by unscrewing the measuring point on the
gas valve unit. Tighten the measuring point when the pipe has been
sufficiently bled.
Check the seals on the gas and water connections.
Check the electrical connections.