RBI Dominator Series Operations Instructions download pdf (Page 16)

DOMINATOR INSTALLATION AND OPERATION INSTRUCTIONSPage 16

Figure 11 - Typical Primary/Secondary Piping System

(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

Va lve

Pump

Motorized Valve

Solenoid

Ball Valve

Bufferfly Valve

Angle Valve

Gate Valve

Globe Valve

Balance Valve

Backflow-

Prevention

Device

H-1 Rev 3

NOTES:

1. Boiler circuit piping must be sized

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 ter-

minals supplied.

Notice: These drawings show suggested

piping conﬁ guration and valving.

Check with local codes and ordinances

for speciﬁ c requirements.

Adjustment Procedure To Maintain Inlet Temperature

Above Dew Point

T1-Temp-Min+110° For Atmospheric

T1-Temp-Min=125° Sealed Combusion

1. Turn heater on and open valves A & B.

2. After steady-state operation, if T1 is less than Temp-Min

slowly close valve B until T1 climbs to desired operating

temperature above Temp-Min.

3. If T1 is greater than desired operating temperature, slowly

close valve A to adjust to lower desired temperature above

Temp-Min.

4. Check after system operating temperature has stabiized.

Make ﬁ nal adjustments.

5. Follow same adjustment procedure for sealed combustion.

Figure 12 - Low Temperature Piping

(See Notes and Adjustment Procedures)

H-18 Rev 2

NOTES:

1. For pump selection consult factory.

2. Boiler pump sized to boiler and thermostatic 3-way valve design ﬂ ow

requirements.

3. Boiler circuit piping must be sized large enough to handle maximum ﬂ 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 conﬁ guration and valving.

Check with local codes and ordinances for speciﬁ c requirements.

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RBI Dominator Series Operations Instructions Page 16

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