A.O. Smith T-M50 ASME Service Manual page 24

Function
The water control valve contains the flow adjustment valve and the bypass valve.
Blue-Brown
13.0 to 16.0 VDC
Orange-Brown
ON: 12.5 to 16.0 VDC OFF: 0 to 1 VDC
Red-Brown (0° position) 1 VDC less
T-M50 / T-M50 ASME Service manual
5 - 3 / 8 " ( 1 3 7 m m )
Water adjustment valve
24
CONFIDENTIAL
Ver. 1.05
Bypass valve