Installation / Operation Instruction Manual

20
Water Connections continued-
2. For a space heating system that utilizes CIRCULATORS, refer
to Figure 3. The indirect-fired water heater connection labeled
“FROM BOILER SUPPLY” should be piped to the boiler supply
piping. Mount the circulator making sure the flow arrow points
toward the water heater. The use of shut-off valves and unions
are recommended for future service convenience. The use of
an air separator and vent is recommended to eliminate air in
the system. Pipe and fittings between the boiler and indirect-
fired water heater must be ¾” diameter or larger.
Figure 3 - Water Boiler Piping with Circulators
CONNECT STEAM BOILER SUPPLY PIPING
Figure 4 represents a typical steam boiler connection diagram.
Refer to the boiler installation manual or contact the boiler
manufacturer for an appropriate piping diagram. The use of a
union, shut-off valves, and a drain valve is recommended for
future service convenience. The use of an in-line “Y”-style strainer
is required to prevent accumulation of sludge in the water heater’s
coil.