beautypg.com

Hydronic piping, Primary / secondary piping, Installation & service manual – Lochinvar 000 - 500 User Manual

Page 31

background image

4

Hydronic piping

(continued)

31

Installation & Service Manual

Figure 4-5_Single Boiler - Primary / Secondary with Low Temperature Bypass

EXPANSION TANK

AIR SEPARATOR

PRESSURE REDUCING

VALVE

BACK FLOW

PREVENTER

BALL VALVE

(TYPICAL)

UNION (TYPICAL)

PRESSURE RELIEF

VALVE

FLOW CHECK

VALVE (TYPICAL)

BOILER

TEMPERATURE / PRESSURE

GAUGE

PRESSURE GAUGE

DRAIN

DRAIN POINT

(TYPICAL)

BOILER CIRCULATOR

SYSTEM SUPPLY SENSOR

(WHEN USED)

SYSTEM CIRCULATOR

TO

SY

STE

M

FRO

M S

YST

EM

MAKE UP WATER

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

Y-STRAINER

(RECOMMENDED)

MAY SUBSTITUTE

LOW LOSS HEADER

LOW TEMPERATURE BYPASS

FLOW SWITCH

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

This manual is related to the following products: