Installation/Maintenance Guide

7
Installation
Logano G201 - Subject to technical modifications.
30
V Seal pressure relief valve connection (Æ Fig. 25,
page 28) and all other open connection with blind
plugs.
V Isolate the expansion tank from the system by closing
the valve.
V Open the mixing and shut-off valves on the heating
water side.
V Connect the hose to the water tap. Push hose onto the
hose connection of the boiler fill & drain valve, fasten
with a hose clip, and fill with water.
V Open the fill & drain valve.
Slowly fill the heating system. Observe the pressure
gauge (pressure/temperature gauge) while doing so.
Fig. 27 Pressure/temperature gauge
V Close the water tap and the boiler fill & drain valve once
the required operating pressure has been reached.
V Check the connections and pipework for leaks.
V Bleed the boiler by carefully opening the pressure relief
valve on the manifold.
V Bleed the heating system via the purge valves on the
boiler piping.
V Replenish with water if the pressure drops as a result
of bleeding the system.
V Remove the hose from the boiler fill & drain valve.
V Installing the pressure relief valve (Æ Fig. 25, page 28)