Lochinvar 80 - 285 - Manual (Page 36)

Installation & Operation Manual
36
6
Hydronic piping
BOILER INDIRECT
DHW TANK
DOMESTIC
HOT WATER
CIRCULATOR
BACKFLOW
PREVENTER
PRESSURE
REDUCING VALVE
PRESSURE
GAUGE
ANTI-SCALD
MIXING VALVE COLD
WATER
IN
TEMPERATURE /
PRESSURE
GAUGE
AIR SEPARATOR
EXPANSION
TANK
ZONE #1
ZONE #2 ZONE #3 ZONE #4
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
DRAIN
DRAIN POINT
(TYPICAL)
MAKE UP WATER
HOT
WATER
OUT
ZONE CIRCULATORS
(TYPICAL)
FLOW CHECK
VALVE
(TYPICAL)
BOILER
CIRCULATOR
SYSTEM SUPPLY
SENSOR
(WHEN USED)
PRESSURE
RELIEF VALVE
DIRT SEPARATOR
(RECOMMENDED)
MAY SUBSTITUTE LOW LOSS HEADER
NOT TO EXCEED 4 PIPE DIA. OR MAX. OF 12" APART
Figure 6-4 Single Boiler Zoned with Circulators