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FUTERA FUSION INSTALLATION AND OPERATION INSTRUCTIONS
Figure 11 - Multiple Boiler Piping
(See notes)
NOTES:
1. Boiler circuit piping must be sized large enough to handle maximum fl ow through each unit.
2. System loop pipe diameter must be sized large enough to handle maximum fl ow through all units.
3. Boiler and pump purging required. Air must be purged from 3-way valve after the boiler is fi lled. Use
purge valves provided. Purge valve may be located on pump fl ange. On multiple boiler installations
the fl ow switch may fail due to trapped air. See manual for procedure.
4. All boilers furnished with factory mounted outlet water temperature gauge.
5. Condensate lines on each unit should be connected for a fl oor drain.
Air Vent
Aquastat Union
Automatic
Thermometer
Flow Switch
Pressure
Relief Valve
Reducing Valve
Check Valve
Pressure
Pump
Valve
Balance Valve
Vacuum
Relief Valve
Temperature &
Pressure
Relief Valve
Drain Valve
(Typ.)
3-Way
Mixing Valve
1
2
NOTES:
H-17
Factory Piped
3
3