Lochinvar KNIGHT WH 55 - 399 - Manual (Page 39)

39
Installation & Operation Manual
BOILER
INDIRECT
DHW TANK
DOMESTIC
HOT WATER
CIRCULATOR
ANTI-SCALD
MIXING VALVE
COLD
WATER
IN
TEMPERATURE /
PRESSURE
GAUGE
AIR SEPARATOR
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 VALVES
(TYPICAL)
FLOW CHECK
VALVE
DIFFERENTIAL
PRESSURE
BYPASS VALVE
(RECOMMENDED)
SYSTEM
CIRCULATOR
SYSTEM SUPPLY SENSOR
DRAIN
Y-STRAINER
(RECOMMENDED)
MAY SUBSTITUTE LOW LOSS HEADER
NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART
ZONE #1
ZONE #2 ZONE #3 ZONE #4
Figure 6-4 Single Boiler - Single Temperature with Zone Valves - DHW Priority
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
for all equipment and detailing required by local codes.
NOTICE
6
Hydronic piping
(continued)