RBI SERIES 8800 Installation & Operation Manual page 13

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS
Figure 7 - Typical Primary/Secondary Piping System
(See Notes)
Figure 8 - Low Temperature Piping
See Notes and Adjustment Procedures
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.
1
1
H-1 Rev 2
H-3 Rev 2
Adjustment Procedure To Maintain Inlet Temperature
Above Dew Point
T1-Temp-Min=110° For Atmospheric
T1-Temp-Min=125° Sealed Combustion
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
stabilized. Make final adjustments.
5. Follow same adjustment procedure for sealed combustion.
Page 13
Circuit Setter
Pump
Valve
Check Valve
Backflow-Prevention
Device
Pressure
Relief Valve
Thermometer
Aquastat
Epansion
Tank
Union
Automatic
Air Vent
Pressure
Reducing
Valve