Xylem MM 214E Series 61 Low Water Cut-Off - Manual (Page 2)

Gauge Glass Mounted
Directly into Boiler
CUT-OFF
LEVEL
1" BLOW DOWN
VALVE
For Boilers with
Independent Water Columns
1" STEAM
EQUALIZING PIPE
MODEL 61
LOW WATER
CUT-OFF
1" WATER
EQUALIZING PIPE
1" WATER
EQUALIZING PIPE
1" WATER
EQUALIZING PIPE
CUT-OFF
LEVEL
MODEL 61
LOW WATER
CUT-OFF
2
a. Whether the gauge glass is mounted directly into the boiler or on an independent water column, the
cut-off line on the 61 body casting should be mounted 1/2” (15mm) above the lowest visible point of the
gauge glass.
a. Locate the gauge glass and
determine the level that the 61
has to be mounted at in order
to achieve the criteria in Step 1.
b. Pipe the 61 following the
diagrams shown to the right.
Follow the diagram that
represents your boiler.
c. Crosses should be used at
each right angle connection for
inspection and cleaning.
d. Make sure the blow-down
valves are full port.
e. Test the Model 61 before
leaving the site
STEP 2 - Installation of the Model 61
Model 61 – For Steam Boilers with 1” (25mm) Equalizing Lines
INSTALLATION –
TOOLS NEEDED:
One (1) flathead screwdriver and two (2) pipe wrenches.
STEP 1 - Determine the Location of the Low Water Cut-Off
MM-214(C) 9/5/06 9:40 AM Page 3
California Proposition 65 warning! This product contains chemicals known to the •
state of California to cause cancer and birth defects or other reproductive harm.
Previous controls should never be installed on a new system. Always install new •
controls on a new boiler or system.
CAUTION:
A more frequent replacement interval may be necessary based on the condition of
of installation or two (2) years from the date of manufacture.
Failure to follow this warning could cause property damage, personal inj ury or death.
•
!
the unit at time of inspection. McDonnell & Miller s warranty is one (1) year from date
& '