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Hydronic piping, Installation & operation manual – Lochinvar KNIGHT XL 801 User Manual

Page 41

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41

6

Hydronic piping

(continued)

EXPANSION
TANK

AIR SEPARATOR

PRESSURE

REDUCING

VALVE

BACK FLOW
PREVENTER

BALL VALVE

(TYPICAL)

UNION (TYPICAL)

PRESSURE
RELIEF
VALVE

FLOW CHECK
VALVE (TYPICAL)

INDIRECT DHW

TANK

BOILER

TEMPERATURE / PRESSURE

GAUGE

PRESSURE

GAUGE

DRAIN

DRAIN POINT
(TYPICAL)

BOILER CIRCULATOR

COLD WATER IN

ANTI-SCALD

MIXING VALVE

DOMESTIC

HOT WATER

CIRCULATOR

HOT WATER OUT

MAKE UP WATER

Y-STRAINER
(RECOMMENDED)

TO SY

STEM

FROM

SYSTE

M

TEMPERATURE

LOOP 1

TEMPERATURE

LOOP 2

TEMPERATURE

LOOP 3

Figure 6-7 Single Boiler - Multiple Temperatures

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

CAUTION

Mixing valves are required for the protection of low temperature loops.

Installation & Operation Manual