15
Operating Hours
The current operating hours are shown on the bottom line.
Temperature
The current water temperature is shown on the bottom line to the right of operating hours. When
the unit is in STANDBY due to a shut down condition, the reading is replaced with ‘---‘.
Warning Messages
Warning messages are also shown on the second line. If any warnings are active, the active
warnings will alternate with the normal displays for the bottom line. The following lists the warning
messages.
HI COND - The Conductivity reading has exceeded the programmed limit.
Tank Full Operation
The unit can be operated with 1 or 2 level switches. With 1 level switch, the switch is connected to
the tank full high input. When this switch has been active for 5 seconds, the unit will shut down on
tank full. TANK FULL will show on the display. When the tank full condition clears, the display will
show TANK FULL 99. The number is the tank full restart time and the unit will restart when this
delay times out.
For 2 level switch operation, the upper switch is connected to the tank full high input and the lower
switch is connected to the tank full low input. When both switches are “open”, the RO unit will start.
The RO unit will continue to run when the water level rises, and while the lower switch becomes
active (closed). When the upper switch becomes active (closes), after the 5 second delay, the RO
unit will shut down. TANK FULL will show on the display. When the tank level drops and the upper
level switch clears, the display will show TANK FULL 99 and the RO unit will remain off. The
number is the tank full restart time and the number will blink until the lower level switch clears
(opens). When the lower level switch clears (opens), the number will remain steady and the RO
will restart when the delay times out.
Tank Full Restart
The tank full restart is the delay before the unit starts when a tank full condition clears. This delay
can be in minutes or in seconds. The TF Restart Setpoint selects seconds or minutes.
Tank Full Override
A timed tank full override can be initiated when the RO unit is shut down due to a tank full
condition. Pressing the Alarm Silence/Reset key for 3 seconds during a tank full condition will
enable the tank full override. The RO will start and TF OVERRIDE 9 will show on the display. The
number is the minutes remaining in the override timer. When the override times out, the unit will
return to the tank full shut down condition.
Summary of Contents for 00HRO64800
Page 6: ...5 SECTION 3 COMPONENTS AND SCHEMATICS 3 1 HRO COMPONENT IDENTIFICATION...
Page 8: ...7 3 2 HRO FLOW DIAGRAM...
Page 9: ...8 3 3 HRO ELECTRICAL SCHEMATIC...
Page 19: ...18 FIGURE 5 2...
Page 20: ...19 FIGURE 5 3...
Page 37: ...36 9 2 SPARE PARTS LIST...