Xylem MM 702E Series 14-B Ball Type Blow Down Valve - Manual (Page 6)

6
IMPORTANT: The burner must not turn on until the water
level has reached its minimum safe operating level as deter-
mined by the boiler manufacturer. If the burner turns on
before this point, immediately shut off the boiler and correct
the problem. Other equipment may be involved and the sys-
tem should be inspected by qualified personnel.
d. Verify that the burner is off and that the system is filling
with water by observing the water level rise in the
gauge glass(R)
R
STEP 3 - Testing
a. Make sure that the blow down valve handle (K) is in
its closed position.
K
CLOSED
b. Open the make-up water feed valve.
c. Turn on the power to the boiler system and turn on
the boiler.
OFF
ON