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10
G. Connect water boiler supply
piping (See Figures 3 thru 6).
1. For a space heating system that
utilizes ZONE VALVES AND
A BOILER BYPASS, refer to
Figure 3. The Alliance™
connection labeled "BOILER
SUPPLY" should be piped to
the boiler supply piping as
close to the boiler as possible
and especially before the
bypass piping. Mount the
circulator as close as possible
to the water heater making
sure the flow arrow points
toward the water heater. The
use of a shut-off valve is
recommended for future
service convenience. The use
of an air purger and vent is
recommended to eliminate air
in the system during warmer
periods when the space heating
system is not operating.
Otherwise, if air noises occur
during summer months the
space heating system would
have to be operated to purge
air at the main purger.
2. For a space heating system that
utilizes ZONE
CIRCULATORS AND A
BOILER BYPASS, refer to
Figure 4. The Alliance™
connection labeled "BOILER
SUPPLY" should be piped to
the boiler supply piping as
close to the boiler as possible
and especially before the
bypass piping. Mount the
circulator as close as possible
to the water heater making
sure the flow arrow points
toward the water heater. The
use of a shut-off valve is
recommended for future
service convenience. The use
of an air purger and vent is
recommended to eliminate air
in the system during warmer
periods when the space heating
system is not operating.
Otherwise, if air noises occur
during summer months the
space heating system would
have to be operated to purge
air at the main purger.
Figure 3: Water Boiler Piping with Zone Valves and a Boiler Bypass
Figure 4: Water Boiler Piping with Zone Circulators and a Boiler
Bypass