18
This drawing is meant to show system piping concept only.
Installer is responsible for all equipment & detailing required by local codes.
Refer to pages 22-25 for electrical wiring instructions.
PRIORITY 2
PUMP
EXPANSION
TANK
PRIORITY 1
PUMP
ZONE PUMPS
(TYPICAL)
ZONE 4
ZONE 3
ZONE 2
SAFETY
RELIEF VALVE
(ACCESSORIES)
DRAIN
TEMPERATURE /
PRESSURE
GAUGE
(ACCESSORIES)
BOILER
INDIRECT
DHW TANK
ANTI-SCALD
MIXING VALVE
FLOW CHECK
VALVE
(TYPICAL)
PRESSURE
GAUGE
PRESSURE
REDUCING VALVE
BACKFLOW
PREVENTER
AIR SEPARATOR
MAKE UP WATER
NOT TO EXCEED 12" APART
HOT
WATER
OUT
COLD
WATER
IN
ZONE 1
BALL VALVE
(TYPICAL)
DRAIN POINT
(TYPICAL)
UNION
(TYPICAL)
Zoned with Pumps