Installation / Operation Instruction Manual

20
Water Connections continued-
CONNECT WATER BOILER SUPPLY PIPING
1. For a space heating system that utilizes ZONE VALVES,
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 Zone Valves
2. For a space heating system that utilizes CIRCULATORS,
refer to Figure 4. 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.