beautypg.com

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

Page 47

background image

Installation & Operation Manual

47

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

UNION
(TYPICAL)

DRAIN

DRAIN POINT

(TYPICAL)

MAKE UP

WATER

HOT

WATER

OUT

ZONE CIRCULATORS
(TYPICAL)

FLOW CHECK
VALVE
(TYPICAL)

SYSTEM SUPPLY SENSOR

PRESSURE

RELIEF VALVE

Y-STRAINER

(RECOMMENDED)

BALL VALVE
(TYPICAL)

ZONE #1

ZONE #2

ZONE #3

ZONE #4

Figure 6-12 Single Boiler - Full Flow - Single Temperature Zoned with Circulators - DHW Piped as a Zone

6

Hydronic piping

(continued)

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

It is the responsibility of the installer to ensure that the minimum flow requirements of the boiler are met at
all times during boiler operation. If the minimum flow requirements cannot be met at any time the boiler
must be hydraulically separated from the system.

NOTICE