Setting the Altitude Pilot
STEP 6
Slowly open the downstream isolation valve.
STEP 7
If the valve remains closed as indicated by the stem position in
the position indicator (See Figure 2) and the tank level is known
to be below the desired level, SLOWLY turn the adjustment screw
IN, clockwise, by ¼ to ½ turn increments (See Figure 3).
This will cause the valve to start opening, filling the tank.
Additional clockwise adjustment may be necessary to raise the
level to the overflow line.
4 IOM-ACV-127-32_6127-32 2115
EDP# 1917061
© 2021 Watts
IOM-ACV-127-32_6127-32 2115
EDP# 1917061
© 2021 Watts 5
Clockwise to INCREASE
minimum tank level set
point.
Figure 3
Model 27 - Altitude Pilot
Figure 2
Position Indicator Stem in UP Position
Indicating Valve OPEN
