20
PRIORITY 2
PUMP
SYSTEM
PUMP
PRIORITY 1
PUMP
ZONE 4
ZONE 3
ZONE 2
SAFETY
RELIEF VALVE
(ACCESSORIES)
ZONE 1
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.
PRESSURE
GAUGE
PRESSURE
REDUCING VALVE
BACKFLOW
PREVENTER
AIR SEPARATOR
MAKE UP WATER
ZONE VALVES
(TYPICAL)
DIFFERENTIAL
PRESSURE BYPASS
VALVE (IF USED)
ANTI-SCALD
MIXING VALVE
HOT
WATER
OUT
COLD
WATER
IN
BOILER
INDIRECT
DHW TANK
DRAIN
TEMPERATURE /
PRESSURE
GAUGE
(ACCESSORIES)
UNION
(TYPICAL)
EXPANSION
TANK
NOT TO EXCEED 12" APART
BALL VALVE
(TYPICAL)
DRAIN POINT
(TYPICAL)
Zoned with Valves