Install Instructions

Boiler block assembly 7

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 Remove the nuts from the threaded studs.

z Push the flat gasket over the distribution tube.

z Push the feed pipe with the supply/return header and

flat gasket into the upper boiler hub at the boiler back.

z Position the supply/return header on the threaded

studs and tighten four nuts by hand.

z Evenly tighten the supply/return header nuts

diagonally using a torque wrench (torque: maximum

44 lbs-ft).

Seal connections which are not required with the plugs

supplied. When the boiler is supplied as a ready

assembled block, these plugs have already been fitted.

z Insert plugs with flat gaskets into the connections

that are not required.

7.1.10 Sealing the sensor well

z Seal sensor well R ¾ from above in the Rp ¾" well

threaded hole of the test port of the connection block.

Fig. 19 Fitting feed pipe and supply/return header

1 Flat gasket

Fig. 20 Fitting supply/return header

1 Torque wrench

Fig. 21 Seal connections that are not required.

1 Plug

2 Flat gaskets

Fig. 22 Sealing the sensor well

1 Sensor well