Lochinvar Copper-Fin II CX401, Designer'S Manual, Page: 29 / 32

PIPING DIAGRAM LOW TEMPERATURE BOILER-BYPASS PIPING
PRESSURE
REDUCING VALVE
FULL PORT
BALL VALVE
RELIEF VALVE CHECK VALVE TEE ELBOW
EXPANSION TANK TANK FITTING SYSTEM PUMP LOW WATER
CUTOFF
UNION AIR SEPARATOR
L E G E N D
MAKE-UP WATER
HEATING RETURN
LOOP
HEATING SUPPLY
LOOP
PRIMARY - SECONDARY BOILER
PIPING WITH BYPASS FOR LOW
TEMPERATURE OPERATION
*AS CLOSE AS PRACTICAL –
12
” OR 4 PIPE DIAMETERS MAXIMUM
DISTANCE BETWEEN MANIFOLD
CONNECTIONS
TO SYSTEM.
TO FLOOR
DRAIN
*12
”
MAX
LIT0473
L o c h i n v a r
D E S I G N E R
’
S G U I D E C O P P E R
-
F I N I I B O I L E R
6 1 5 - 8 8 9 - 8 9 0 0
A3
This illustration is for concept only and should not be used for any actual installation without engineering
or technical advice from a licensed engineer. All necessary equipment may not be illustrated.
BYPASS