Strebel S-CB 100, Инструкция по установке и эксплуатации

Страница: 14 / 36

14
7.
Mounting the connecting sets
First connect the connecting sets hand-tight to the boiler connections. In a cascade set-up, do NOT use the
T-pieces delivered with the boilers.
The shortest connecting set should be connected to the gas connection on the boiler.
Make sure to connect the flow connecting set (middle length) to the boiler flow connection (left-side
connection) and the return connecting set (longest) to the boiler return connection (right-side connection).
The open connection in the flow connecting set is meant for a pressure relief valve, and the one in the return
connecting set is to be used for a boiler bleeding valve.
NOTICE: For the S-CB PX 120 boiler the return connecting set differs, because of the external pump.
Flow connecting set Return connecting set Gas connecting set
Connection to boiler
Connection for
pressure relief valve
Ball valve
Coupling to flow
header Connection to boiler
Connection for boiler
bleed valve
Check valve
Ball valve
Coupling to return
header Connection to boiler
Gas isolator
Coupling to gas
header
S-CB PX boiler with
external pump: Connection to
boiler
Pump location
Connection for
boiler bleed valve
Check valve
Ball valve and
coupling to return
header
Figure 6. Connecting sets.