RBI 8800 series Installation And Operation Instructions Manual page 13

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS
Figure 8 - Typical Primary/Secondary Piping System
(See Notes)
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.
Figure 9 - 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.
Adjustment Procedure
To Maintain Inlet Temperature
Above Dew Point
T1-Temp-Min=110°F For Atmospheric
T1-Temp-Min=125°F 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 stabilized. Make
final adjustments.
5. Follow same adjustment procedure for sealed combustion.
H-1 Rev 4
H-3 Rev 6
Page 13
Pump
Gate Valve
Globe Valve
Angle Valve
Bufferfly Valve
Balance Valve
Ball Valve
Motorized Valve
Solenoid
Operated Valve
Self-Operated
Valve
Pressure
Reducing Valve
Check Valve
Pressure
Relief Valve
Flow Switch
Thermometer
Aquastat Union
Pressure Switch
Gas Pressure
Regulator
Automatic
Air Vent
Backflow-
Prevention
Device
3-Way Valve
Expansion
Tank