Watts R44-24-1111000 - Manual (Page 17)

Pretreatment Interlock: This is a dry contact that signals the system to shut down
when a pretreatment device is not functioning, or regenerating. This could be
used on a water softener, multi media filter, chemical feed pump, differential
pressure switch, etc. This contact is normally open. When a circuit is not
complete between the two terminals the system will operate. If the contact is
closed the system will shut down. A LED will indicate when the system is shut
down due to pretreatment interlock. The system will restart itself when the
contact is opened.
E.
Mode Descriptions
The stand-by mode is intended to place the system in a temporary non-operational
mode. When the system is placed in this mode it will operate for the amount of
time set for the flush cycle. If the flush time is set for zero the system will operate
for one minute. After this cycle is complete the pump will turn off and the inlet
valve will close. The system will repeat this cycle once every hour. When the
system is flushing, the amount of time remaining in the flush cycle will be
indicated on the last line of the display. When the system is idle, the amount of
time remaining until the next flush will be indicated. When the pump is running,
the reject valve and diverter valve outputs are energized.
The tank feed mode is intended to be used when the system is feeding a storage
tank. When in this mode the system will shut down when the tank level switch
(not provided) has an open contact. The flush cycle is also enabled in this mode.
If the autoflush option has been included on the system, the controller will
activate the flush cycle when the system is turned on and once every hour. When
the system is flushing, the amount of time remaining in the flush cycle will be
indicated on the last line of the display. When the system is not flushing the
amount of time until the next flush will be indicated. The system will still flush
every hour even if the tank is full. During a full tank condition the system is
essentially in standby. When the system is flushing, the diverter valve output is
energized. If the flush time is set for zero the system will not flush when the tank
is full.
The direct feed mode is intended to be used when the system is feeding a
distribution loop or another piece of equipment. In this mode the system will not
flush and the tank level switch is disregarded. When the system is in this mode,
the total number of hours the system has been operated will be indicated on the
last line of the display.
F.
Controls (see figure 1)
NOTE: Refer to Section III, Operation for detailed instructions on operating the controls .
Start / Stop Button: This button turns the system on and off.