Primary/Secondary Piping Of Multiple Boilers - Lochinvar COPPER-FIN II 402 - 2072 Installation And Operation Manual

4
Water connections
Figure 4-4_Primary/Secondary Piping of Multiple Boilers
COMMON MANIFOLD SIZE (Min.)
Models: 402, 502, 652, & 752
Number of Units GPM
2 110
3 165
4 220
5 275
6 330
7 385
8 440
PRESSURE
MAKE-UP
WATER
AIR
SEPARATOR
PIPE DIAMETERS
FROM
SYSTEM
SECONDARY
Please note that these illustrations are meant to show system piping concept only, the installer is responsible for
NOTICE
all equipment and detailing required by local codes.
40
Diameter
(in.)
3
3 1/2
4
5
5
6
6
RELIEF
VALVE
12" OR 4X
BOILER
PUMP
Installation & Service Manual
COMMON MANIFOLD SIZE (Min.)
Models: 992, 1262, 1442, 1802 & 2072
Number of Units GPM
2 180
3 270
4 360
5 450
6 540
7 630
8 720
EXPANSION
TANK
LOW WATER
CUT-OFF
(OPTIONAL)
TO SYSTEM
SYSTEM
PUMP
Diameter
(in.)
4
5
6
6
6
8
8