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Hydronic piping, Installation & operation manual – Lochinvar Knight 80 - 285 User Manual

Page 34

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Installation & Operation Manual

34

6

Hydronic piping

PRESSURE

REDUCING VALVE

BACKFLOW

PREVENTER

PRESSURE

GAUGE

SYSTEM SUPPLY

SENSOR

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

DRAIN POINT

(TYPICAL)

SYSTEM

CIRCULATOR

ANTI-SCALD

MIXING VALVE

DOMESTIC

HOT WATER

CIRCULATOR

PRESSURE

RELIEF VALVE

UNION

(TYPICAL)

TEMPERATURE /

PRESSURE

GAUGE

BOILER
CIRCULATOR

DRAIN

BOILER

INDIRECT

DHW TANK

BALL VALVE

(TYPICAL)

EXPANSION

TANK

HOT

WATER

OUT

ZONE #1

ZONE #2 ZONE #3 ZONE #4

AIR SEPARATOR

COLD

WATER

IN

FLOW CHECK

VALVE

ZONE VALVES

(TYPICAL)

DIFFERENTIAL
PRESSURE BYPASS
VALVE (IF USED)

MAKE UP WATER

Figure 6-6 Single Boiler Zoned with Valves