RBI DOMINATOR Series - Page 16

Finned copper tube gas boilers & water heaters – Boiler Manual
16
Figure 11 Typical Primary/Secondary Piping
(See Notes)
Figure 12 Low Temperature Piping with Thermostatic Valve
(See Notes)
H-1 Rev 4
NOTES:
1. Boiler circuit piping must be sized
large enough to handle maximum
ow through unit.
2. Boiler pump sized to boiler design
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 pip-
ing conguration and valving.
Check with local codes and ordinances for
specic requirements.
H-18 Rev 3
NOTES:
1. For pump selection consult factory.
2. Boiler pump sized to boiler and thermostatic 3-way valve design ow
requirements.
3. Boiler circuit piping must be sized large enough to handle maximum ow
through unit.
4. All boilers furnished with factory mounted outlet water temperature gauge.
5. Boiler pump purging required. Use terminals supplied.
6. Valve is precalibrated for 140°F return temperature.
Notice: These drawings show suggested piping conguration and valving. Check
with local codes and ordinances for specic requirements.
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
Va lve
Pump
Motorized Valve
Solenoid
Ball Valve
Bufferfly Valve
Angle Valve
Gate Valve
Globe Valve
Balance Valve
Backflow-
Prevention
Device
3-Way Valve
Expansion
Tank