DOMINATOR INSTALLATION AND OPERATION INSTRUCTIONS
Page 17
Figure 13 - Multiple Boiler Piping
(See Notes)
Operated Valve
Air Vent
Pressure Switch
Aquastat Union
Gas Pressure
Regulator
Automatic
Thermometer
Flow Switch
Pressure
Relief Valve
Reducing Valve
Self-Operated
Check Valve
Pressure
Valve
Pump
Motorized Valve
Solenoid
Ball Valve
Bufferfly Valve
Angle Valve
Gate Valve
Globe Valve
Balance Valve
Backflow-
Prevention
Device
3-Way Valve
Expansion
Tank
H-15 Rev 4
NOTES:
1. Boiler circuit piping must be large enough to handle
maximum fl ow through unit.
2. Boiler pump sized to boiler design fl ow requirements.
3. All boilers furnished with factory mounted outlet water
temperature gauge.
4. Boiler pump purging required. Use terminals supplied.
5. Secondary loop pipe diameter must be sized large enough to
handle maximum fl ow through all units.
Notice: These drawings show suggested piping confi guration and valving.
Check with local codes and ordinances for specifi c requirements.
Figure 12A - Low Temperature Piping with Thermostatic Piping
(See Notes and Adjustment Procedures)
H-3 Rev 5
NOTES:
1. Boiler circuit piping must be large
enough to handle maximum fl ow
through unit.
2. Boiler pump sized to boiler design
fl ow 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 confi guration and valving.
Check with local codes and ordinances
for specifi c requirements.
