Xylem MM 305G User Manual
Valve, Cartridge and Strainer
!
Replacement Kit
Assembly Kit SA-47-101-102 for
Series 47, 247 and 847
Mechanical Water Feeders
Assembly Kit SA51-101-102 for
INSTRUCTION MANUAL
MM-305G
Series 51 and 851 Make-Up
Water Feeders
CAUTION
WARNING
• Before using this product read and understand instructions.
• Save these instructions for future reference.
• All work must be performed by qualified personnel trained in the proper application, installation, and maintenance 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 working on the control.
• Relieve pressure and drain the water to a level below the control. Let boiler cool down to
80˚F (27˚C).
®
WARNING
Failure to follow this warning could cause property damage, personal injury or death.
!
INSTALLATION
TOOLS NEEDED:
One (1) long nose pliers, one (1) flathead screwdriver, and one (1) Allen wrench.
STEP 1 - Preparation
WARNING
• To prevent electrical shock, turn off the electrical power before working on the control.
• Relieve the pressure and drain the boiler so that the water level is below the control. Allow the boiler to
cool to 80˚F (27˚C).
Failure to follow this warning could cause property damage, personal injury or death.
a. Close the water supply valve (A) and (B).
Remove the inlet and outlet piping from the
water feeder valve (C).
BY-PASS
B
OUT
VALVE
CITY WATER
SUPPLY
A
WATER
SUPPLY VALVE
IN
C
2
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