Watts R14-03-1WM User Manual download pdf (Page 12)

E. Controller

1. When the power switch is turned on, the pump will run as long as the circuit between the

tank level terminals and the interlock terminals are closed, and the low-pressure switch

contacts are open.

2. To install a tank level switch, remove the jumper wire from the terminal strip and connect the

level switch to the terminals. The RO pump and inlet valve will turn on when the level

switch contacts are closed (tank not full), and turn off if the level switch contacts open (tank

full).

3. To install a pretreatment interlock, remove the jumper wire from the terminal strip and

connect the normally closed pretreatment switch contacts to the terminals. The RO pump

and inlet valve will turn on when the switch contacts are closed, and turn off if the switch

contacts open.

4. If the low-pressure contacts close continuously for five (5) seconds, the RO pump and inlet

valve will turn off and the low-pressure light will illuminate. The controller will

automatically restart the unit after the user selected time delay. Turning the controller off

then back on will manually reset a low-pressure shutdown.

Note: Use the plastic lever to push the terminal strip contacts open. Insert the bare end of the wire into the terminal

and release the lever. The lever can be moved from one terminal to another as needed. One lever is included with

each controller.

Automatic low pressure reset

If the unit shuts down due to low pressure, a red light on the front of the controller will

illuminate. The controller will automatically restart the unit after a user selected time delay. The

user selects the delay time by positioning a jumper cap inside the controller (see drawing in the

appendix)

Tank Level / Pretreatment Indicator

If the unit shuts down due to a high product tank level or pretreatment interlock, an amber lamp

will illuminate. The lamp will turn off and the unit will restart when the condition clears. The

same lamp is used for both tank level and pretreatment interlock.

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Watts R14-03-1WM User Manual Page 12