RBI Gas boilers - Page 13

Finned copper tube gas boilers & water heaters – Boiler Manual
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13
F
Figure 9 Futera Fusion Secondary Bypass Piping
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
Item
Number Description
1
3-Way Valve
2
Air Purging Valves
3
Flow Switch
4
Circulator
5
Pressure Relief Valve
6
T & P Gauge
7
Primary Heat Exchanger Drain Valves
8
Condensate Drain Trap
NOTES:
1. Fill condensate drain trap with water or approved
anti-freeze solution prior to start-up.
2. Air purging valve may be located on pump or  ange.
Discharge Pipe:
Do not restrict  ow.
Pipe size equal to valve outlet.
Discharge so as to avoid exposure
of persons to hot liquid or vapor
and to allow complete drainage
of relief valve and piping.