Installation & Operation Manual
3Piping (continued)
Figure 3-1 Piping Diagram Zoned with Circulators
|
| ZONE #1 |
PRESSURE | PRESSURE | |
REDUCING VALVE | GAUGE | |
BACKFLOW |
|
|
PREVENTER |
|
|
MAKE UP WATER | SYSTEM SUPPLY | |
|
| SENSOR |
|
| (WHEN USED) |
AIR SEPARATOR |
| |
ZONE #2 ZONE #3 ZONE #4
ZONE CIRCULATORS
(TYPICAL)
EXPANSION 
TANK
| NOT TO EXCEED 4 PIPE DIA. |
|
| OR A MAXIMUM OF 12” APART |
|
DRAIN POINT |
| HOT |
(TYPICAL) | BOILER | WATER |
BALL VALVE | CIRCULATOR | OUT |
| ||
(TYPICAL) |
| MIXING VALVE |
| FLOW CHECK | COLD |
| VALVE | |
|
| WATER |
|
| IN |
| RELIEF VALVE |
|
|
| RECIRCULATION |
|
| LOOP |
|
| AQUASTAT |
UNION |
|
|
(TYPICAL) |
|
|
TEMPERATURE / |
|
|
PRESSURE | SOLUTION | SQUIRE |
GAUGE | ||
| BOILER |
|
PRESSURE |
| |
RELIEF VALVE |
| |
7