Xylem McDonnell & Miller 47 Series Instruction Manual page 7

STEP 4 - Installing Series 247/247-2 Water Feeder to Boiler
Pipe the Series 247/247-2 water feeder so that
the line on the casting is 3" (76mm) above the
minimum safe operating level as specified by
the boiler manufacturer.
STEP 5 - Piping the valve on the Models 47/47-2 and 247/247-2
a. Follow the drawing to the right for piping the valve
to the boiler and city water supply. When piping the
valve, remember to leave room for servicing the
valve.
b. Piping the valve this way will aid in troubleshooting
the valve and piping in the future.
STEP 6 - Electrical Wiring (Only for Series 47-2 & 247-2)
Boiler manufacturer schematics should always be followed. In the event that the boiler manufacturer's schematic
does not exist, or is not available from the boiler manufacturer, refer to the schematics provided in this document.
a. Using the flathead screwdriver, loosen the two
(2) screws that secure the switch cover (AA).
Remove cover.
Burner
!
IMPORTANT
Recommended Piping
City Water Supply
Casting
Line
Series 247
Water
Feeder
Boiler
Swing Check
By-Pass
Valve
TO BOILER
ByPass
Valve
Return
Header
AA
7