AERCO Esteem O&M Manual - Manual (Page 26)

20
System Piping - Special Application
System Piping - Special Application
If the boiler is used in conjunction with a
chilled water/medium system, the boiler and
chiller must be piped in parallel. Install flow/
check valves to prevent the chilled medium
from entering into the boiler.
If the boiler is used to supply hot water to
the heating coils of an air handler where they
may be exposed to chilled air circulation,
install flow/check valves or other automatic
means to prevent gravity circulation of the
boiler water during cooling cycles.
System Piping - Multiple Units
Installation
Use a balanced manifold system as the pri-
mary / secondary connection to the space
heating piping as shown in Figure 15 page 26.
Maintain a minimum of 6 inches [153 mm] of
clearance between units to allow for servicing.
Refer to Figure 7 and Figure 8, page 21 to install
air separator and expansion tank.
For the space heating piping refer to the appli-
cations mentioned in this manual or use recog-
nized design methods..
GF-125