Raypak 122-322 - Low Water Cut off (Optional)

LOW WATER CUT OFF (OPTIONAL)
The low water cut off automatically shuts down the burner whenever
water level drops below the level of the sensing probe. A 3-second
time delay prevents premature lockout due to temporary conditions
such as power fluctuations or air pockets.
Fig.# J-5
LOW WATER CUT-OFF
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Drw. #8996.1