Lochinvar 80 - 285 - Manual (Page 38)

Installation & Operation Manual
38
6
Hydronic piping
BOILER
INDIRECT
DHW TANK
DOMESTIC
HOT WATER
CIRCULATOR
ANTI-SCALD
MIXING VALVE
COLD
WATER
IN
TEMPERATURE /
PRESSURE
GAUGE
AIR SEPARATOR
ZONE #1
ZONE #2 ZONE #3 ZONE #4
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
PRESSURE
RELIEF VALVE
DRAIN POINT
(TYPICAL)
MAKE UP WATER
HOT
WATER
OUT
BOILER
CIRCULATOR
BACKFLOW
PREVENTER
PRESSURE
REDUCING VALVE
PRESSURE
GAUGE
EXPANSION
TANK
ZONE #1
ZONE #2 ZONE #3 ZONE #4
ZONE VALVES
(TYPICAL)
FLOW CHECK
VALVE
NOT TO EXCEED 4 PIPE DIA. OR MAX. OF 12" APART
DIFFERENTIAL
PRESSURE BYPASS
VALVE (IF USED)
SYSTEM
CIRCULATOR
SYSTEM SUPPLY
SENSOR
(WHEN USED)
DRAIN
DIRT SEPARATOR
(RECOMMENDED)
MAY SUBSTITUTE LOW LOSS HEADER
Figure 6-6 Single Boiler Zoned with Valves