Boiler block assembly
7
23
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 11/2004
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
1
Fig. 20
Fitting supply/return header
1
Torque wrench
1
Fig. 21
Seal connections that are not required.
1
Plug
2
Flat gaskets
1
2
Fig. 22
Sealing the sensor well
1
Sensor well
1
