11
Vii. Near Boiler PiPiNg
sInglE ZonE BoIlER pIpIng
Figure #8
Figure #9a
MultIZonE BoIlER pIpIng
WItH cIRculatoRs
notE:
When zoning with
circulators, the furnished
circulator pump should be
used as one of the zone
pumps. Each stripped end
of the electrical wires for the
circulator pump inside the
junction box should be taped
or wire nutted to prevent
short circuits. Unplug the
circulator pump wiring at the
integrated boiler control.
MultI ZonE BoIlER pIpIng WItH ZonE ValVEs
Figure #9b
supplY and REtuRn lInEs
The packaged boiler unit is set up to receive 1¼” NPT
supply and return piping from top access.
notE:
The circulator pump and isolation valves
are furnished within a carton inside the boiler cabi
-
net and can be installed at the installer preferred
location.
