Figure 2-40. Product Flow Valve
Control Box Switches.
(1) Check switches in the control box assemblies. If you find any switch in the START or RUN
position, set it to STOP or OFF.
Figure 2-41. Control Box Switches
The switches marked START are spring loaded. Upon release they return to the
middle (RUN) position. The ones marked JOG, RESET, and START
BACKWASH return to the normal position when released.
(2) An indicator lamp is associated with each switch except for the EMERGENCY STOP button.
Check the setting of the EMERGENCY STOP button. Pull button until it remains out when released. This is the
normal operating position.
Element cleaning switch. Check that the ELEMENT CLEANING switch is in the OFF position. It
should be off at all times except while cleaning R.O. elements (para. 229).