SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS
Page 14
Figure 9 - Multiple Boiler Piping
(See Notes)
Pressure
Reducing
Valve
Aquastat
Thermometer
Pressure
Relief Valve
Check Valve
Pump
Valve
Epansion
Tank
Circuit Setter
Union
Air Vent
Automatic
Backflow-Prevention
Device
1
5
5. Secondary loop pipe diameter must be sized large enough to
handle maximum flow through all units.
NOTES:
1. Boiler circuit piping must be sized large enough to handle
maximum flow through unit.
2. Boiler pump sized to boiler design flow requirements.
3. All boilers furnished with factory mounted outlet water
temperature gauge.
4. Boiler pump purging required. Use terminals supplied.
Notice: These drawings show suggested piping configuration and valving.
Check with local codes and ordinances for specific requirements.
H-15 Rev 2
