12-16-2017, 02:22 PM
To add a little to what Steve said.
A solenoid is just an electrically operated valve. It is either open or closed In the case of our HWH solenoid valves, they are NC or normally closed. The "T" handles provides a way to open them without the use of current through the solenoid winding. HWH suggests the "T" handle needs to be turned about 6 turns to open the valve completely. This does not necessarily "take pressure off the system", it just opens the valve. If there is no pressure on one side, once the valve is open the pressure will be equalized as determine by the volume of the cavities on each side of the valve. Just think open and closed!
A solenoid is just an electrically operated valve. It is either open or closed In the case of our HWH solenoid valves, they are NC or normally closed. The "T" handles provides a way to open them without the use of current through the solenoid winding. HWH suggests the "T" handle needs to be turned about 6 turns to open the valve completely. This does not necessarily "take pressure off the system", it just opens the valve. If there is no pressure on one side, once the valve is open the pressure will be equalized as determine by the volume of the cavities on each side of the valve. Just think open and closed!
Russ White
2016 Winnebago Vista LX 30T
#530 ( Sold )
1999 45' Double Slide - Factory upgrade 2004