MRO2X
– 5X Manual
- 27 -
98-0058
Rev. R
6.2
CONTROLLER OPERATION
GENERAL OPERATION
The unit has 2 modes of operation, a standby mode and an operating mode that are controlled
by the POWER key. In the standby mode, the unit is effectively off. All outputs are turned off
and the display shows STANDBY. In the operating mode, the unit operates automatically. All
inputs are monitored and the outputs are controlled accordingly. Pressing the POWER key will
toggle the unit from STANDBY to OPERATE or from OPERATE to STANDBY. If power is
removed from the unit, when power is reapplied, the unit will restart in the mode it was in when
power was removed.
DISPLAY
The display is a 2 line x 20-character backlit liquid crystal display. System operating status and
sensor readings are shown on this display. Set point information can, also, be shown on this
display.
OPERATING STATUS MESSAGES
The operating status of the unit is shown on the top line of the display. The following list
describes the items shown for the operating status.
STANDBY - The unit is in the STANDBY mode.
DELAY 99 - The unit is in the RO start delay. The number is the seconds remaining before the
RO pump starts.
OPERATING - The RO unit is operating.
TANK FULL - The unit is shut down due to a tank full condition.
TANK FULL 99 - The unit is shut down due to a tank full condition. If the number is blinking, the
tank full high switch has cleared, but the tank full low switch is still active. If the number is on
steady, both tank level switches have cleared and the delay is counting down.
PRETREAT - The unit is shut down due to a pretreat lockout condition.
PRESS FAULT - The unit is shut down due to a pressure fault condition.
MEMB FLUSH 99
– Membrane Flush is active. The number is the minutes remaining in the
flush cycle.
Summary of Contents for MRO2X
Page 2: ......
Page 9: ...MRO2X 5X Manual 5 98 0058 Rev R SECTION 3 COMPONENTS AND SCHEMATICS 3 1 EXTERNAL FRONT VIEW ...
Page 11: ...MRO2X 5X Manual 7 98 0058 Rev R 3 2 INTERNAL REAR VIEW ...
Page 13: ...MRO2X 5X Manual 9 98 0058 Rev R 3 3 ELECTRICAL DIAGRAM MRO2X MRO3X MRO4X MRO5X ...
Page 14: ...MRO2X 5X Manual 10 98 0058 Rev R 3 4FLUID DIAGRAM MRO2X MRO3X MRO4X ...
Page 15: ...MRO2X 5X Manual 11 98 0058 Rev R 3 5 FLUID DIAGRAM MRO5X ...
Page 35: ...MRO2X 5X Manual 31 98 0058 Rev R FIGURE 6 2 ...
Page 36: ...MRO2X 5X Manual 32 98 0058 Rev R FIGURE 6 3 ...
Page 52: ...MRO2X 5X Manual 48 98 0058 Rev R SECTION 11 SPARE PARTS LISTING ...