Watts R14-06-1111000 - Manual (Page 14)

E. Controllers
Two controller options are available.
Controller option # 1 is a basic controller with an on / off switch, low pressure, tank level, and
pretreatment interlock (see figure # 2).
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 attached
drawing).
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.
Controller operation
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.
5.
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.