Install Instructions

Boiler installation 8
37
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 2012/10
z Seal pressure relief valve connection (Î Fig. 47
page 35) and all other open connection with blind
plugs.
z Close the expansion tank from the system by closing
the cap valve.
z Open the mixing and shut-off valves on the heating
water (primary) side.
z Connect the hose to the water tap. Attach a hose
filled with water onto the hose connection of the
boiler fill & drain valve, fasten with a hose clip and
open the valve.
z Slowly fill the boiler with water from the tap.
z Open the cap of the automatic air vent by one full turn
to allow air to escape.
z Slowly fill the heating system. Observe the pressure
gauge while filling.
z Close the water tap and the boiler fill & drain valve
once the required operating pressure has been
reached.
z Check the connections and pipework for soundness.
z Bleed the system via the radiator bleed valves.
z Top off with water if the pressure drops as a result of
bleeding the system.
z Installing pressure relief valve (Î Fig. 47 page 35).
z Remove the hose from the boiler fill and drain valve.
8.4 Burner installation
Only one burner that complies with the technical data of
the boiler can be mounted on boilers without integrated
burners (Î Chapter 3, page 7).
Maximum
operating pressure
Maximum site test
pressure
30 psi (with the supplied
pressure relief valve)
45 psi
58 psi (with a different
pressure relief valve)
75 psi
CAUTION!
SYSTEM DAMAGE
due to incorrect burner.
z Only use burners which meet the
technical boiler requirements.