Buderus Logano GA124 Installation And Maintenance Instructions Manual page 33

Boiler installation
Carry out the leak test at 1.5 times the normal operating
pressure and as specified by the local codes as follows:
Maximum
operating pressure
30 psi (with the included relief
valve)
58 psi (with a different relief
valve)
Tab. 12 Test pressures
Close connection for relief valve (
page 16) and all other open connections with plugs.
Disconnect the expansion tank from the system by
closing the cap valve.
Open mixing and stop valves on hot water side.
Fill boiler slowly with water from the building
connection.
Turn cap of automatic vent one revolution to allow the
air to escape.
Slowly fill heating system. Observe pressure display
on pressure gauge during this process.
Check connections and pipes for leaks.
Bleed heating system through the bleed valves on
the radiators.
If the pressure falls while bleeding, water must be
added.
Install relief valve (
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano GA124 special gas-fired boiler • Issue 04/2005
Maximum
construction site test
pressure
45 psi
75 psi
Fig. 10,
Fig. 10, page 16).
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