Xylem MM 307H Series 101-A Electric Water Feeder - Manual (Page 3)

3
• All work must be performed by qualified personnel trained in the proper application, installation, and
maintenace of plumbing, steam, and electrical equipment and/or systems in accordance with all applicable
codes and ordinances.
• To prevent electrical shock, turn off the electrical power before making electrical connections.
• To prevent an electrical fire or equipment damage, electrical wiring insulation must have a rating of
167˚F (75˚C) if the liquid’s temperature exceeds 180˚F (82˚C).
• To prevent an electrical fire or equipment damage, water feeder wiring must be on same circuit as all other
boiler controls.
Failure to follow this warning could cause property damage, personal injury or death.
! WARNING
LWCO
Level
a. Test the Low Water Cut-Off on the boiler.
b. Mark location of water level on sight glass where
Low Water Cut-Off turns off burner. This will be
used as reference to test the water feeder’s
operation.
OFF
ON
c. Turn off all power to boiler and boiler controls.
d. Using a flathead screwdriver, remove electrical
cover plate.
f. Connect electric conduit to the water feeder’s electrical
enclosure.
Water Feeder Low Water Cut-Off Page
Model Model
101A-120 & 67 with 24V or 120V burner circuit ..........................................................................4
101A-24 & 67 with 24V or 120V burner circuit .......................................................................4-5
101A-120 & 67G with millivolt burner circuit................................................................................5
101A-24 & 67G with millivolt burner circuit................................................................................5
101A-24 & PS-802-24................................................................................................................6
101A-120 & PS-801-120..............................................................................................................6
g. Based on the water feeder and low water cut-off combination you are installing, select proper
wiring diagram and proceed to that page.