L o c h i n v a r
D E S I G N E R
’
S
G U I D E
E F F I C I E N C Y
+
B O I L E R
6 1 5 - 8 8 9 - 8 9 0 0
A1
PRESSURE
REDUCING VALVE
FULL PORT
BALL VALVE
RELIEF VALVE
CHECK VALVE
TEE
ELBOW
EXPANSION TANK
TANK FITTING
SYSTEM PUMP
LOW WATER
CUT-OFF
UNION
AIR SEPARATOR
L E G E N D
PIPING DIAGRAM
PRIMARY/SECONDARY BOILER PIPING
12
”
MAX*
HEATING RETURN LOOP
HEATING SUPPLY LOOP
*AS CLOSE AS PRACTICAL –
12
”
OR 4 PIPE DIAMETERS
MAXIMUM DISTANCE
BETWEEN MANIFOLD
CONNECTIONS TO SYSTEM.
MAKE-UP WATER
TO FLOOR DRAIN
LIT0476
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.