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Hydronic piping, Installation & operation manual – Lochinvar KNIGHT WH 55 - 399 User Manual

Page 38

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38

Installation & Operation Manual

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

BALL VALVE

(TYPICAL)

UNION

(TYPICAL)

PRESSURE

RELIEF

VALVE

DRAIN POINT

(TYPICAL)

MAKE UP WATER

FROM
SYSTEM

NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART

BOILER

CIRCULATOR

SYSTEM

CIRCULATOR

TO

SYSTEM

SYSTEM SUPPLY

SENSOR

DRAIN

MAY SUBSTITUTE LOW LOSS HEADER

Y-STRAINER
(RECOMMENDED)

HOT

WATER

OUT

FLOW CHECK
VALVE

Figure 6-3 Single Boiler - Primary / Secondary Piping

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