Lochinvar 399 6Hydronic piping continued, Installation & Operation Manual, Notice Notice

Models: 399

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NOTICE

Installation & Operation Manual

6Hydronic piping (continued)

Figure 6-7Single Boiler - Primary/Secondary Piping

AIR SEPARATOR

 

MAY SUBSTITUTE

 

 

 

LOW LOSS HEADER

M E T S Y S M O R F

DRAIN POINT (TYPICAL)

SYSTEM SUPPLY SENSOR

BALL VALVE

 

 

 

(TYPICAL)

 

 

 

(WHEN USED)

 

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

 

 

SYSTEM CIRCULATOR

 

 

 

 

 

PRESSURE GAUGE

 

 

 

 

EXPANSION TANK

 

 

 

M

 

 

BOILER CIRCULATOR

 

 

 

 

E

 

 

 

 

T

 

 

 

 

S

 

 

 

 

Y

 

 

 

 

S

 

 

 

 

O

 

 

 

 

T

 

 

 

 

MAKE UP WATER

 

 

Y-STRAINER

 

 

 

(RECOMMENDED)

 

BACK FLOW

 

 

 

 

PREVENTER

 

 

 

 

PRESSURE REDUCING

 

 

 

VALVE

 

 

 

 

INDIRECT DHW

 

 

 

 

TANK

 

 

 

 

ANTI-SCALD

 

 

 

 

MIXING VALVE

 

 

 

 

HOT WATER OUT

 

 

 

 

DOMESTIC

 

 

 

 

HOT WATER

 

 

 

 

CIRCULATOR

UNION (TYPICAL)

 

BOILER

 

 

 

 

 

COLD WATER IN

TEMPERATURE / PRESSURE

 

PRESSURE RELIEF

 

 

 

 

 

GAUGE

 

 

 

DRAIN

VALVE

 

FLOW CHECK

 

 

 

 

VALVE (TYPICAL)

NOTICE

NOTICE

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.

System flow should always remain higher than the required flow for the boiler(s) when the boiler(s) is in operation to prevent short cycling and high limit issues.

Manual background 39 Manual background

Page 39
Image 39
Lochinvar 399 operation manual 6Hydronic piping continued, Installation & Operation Manual, Notice Notice