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Copyright 2006 TAC All Rights Reserved.
F-26277-7
Errors:
The Error frames display a value of 1, 2, 4, 8, 16, 32, or a combination of any of
these values. The value may indicate one or more errors as described in Table-2. For
example, an Error frame display value of 17 indicates two errors (1 = EEPROM write or read
error and 16 = Analog output writing error) since 1 + 16 = 17. The LCD alternates between
the Error frame and the numerical error value. An error screen displaying dashes (---)
indicates no errors.
Table-2 Error Code Descriptions.
Alarms:
The Alarm frames display the last four alarms of the connected TAC I/A Series
MicroNet Controller. The LCD alternates between Alarm frame and numerical alarm value.
If the controller is sending more than one alarm, the numerical alarm value will update every
four to five seconds. Alarms are defined by controller application. For information regarding
specific alarm definitions, consult the controller application documentation.
Temperature Offset.
The Temperature Offset frame displays the connected TAC I/A Series
MicroNet Controller’s temperature offset value. Adjust the value using the Up/Down Key.
Humidity Offset.
The Humidity Offset frame displays the connected TAC I/A Series
MicroNet Controller’s humidity offset value. Adjust the value using the Up/Down Key.
Display Screen
Functions
The MN-S3, MN-S3HT, MN-S4-FCS, and MN-S4HT-FCS models have one display screen
slot. The MN-S4, MN-S4HT, MN-S5, and MN-S5HT models have four display screen slots.
The connected controller’s application defines what is visible in each slot. The first display
screen slot always shows the sensor’s default display.
To scroll through display screens (MN-S4, MN-S4HT, MN-S5, and MN-S5HT):
1. Press either end of the Up/Down Key to change from the first display screen slot to the
second display screen slot. Before the second display screen slot appears, “-2-” will
appear to indicate you are about to view the second slot.
2. Press either end of the Up/Down Key to scroll through the four display screen slots.
Before the third display screen slot appears, “-3-” will appear to indicate you are about
to view the third slot. Before the fourth display screen slot appears, “-4-” will appear to
indicate you are about to view the fourth slot.
Emergency Heat
Functions
The Emergency Heat Key activates emergency heat in heat pump applications equipped
with this feature. To activate, press the Emergency Heat Key. The LED indicator is lit when
Emergency Heat is activated. (Applies only to MN-S5 and MN-S5HT.)
Fan Functions
To display and adjust the fan (MN-S4, MN-S4HT, MN-S5, and MN-S5HT):
1. Press the Fan Key to change from the current display to the first fan display screen slot.
The sensor displays the first fan, corresponding speed icon (Table-3). and “-1-”.
Note:
•
There are two fan display screen slots. The fan assigned to each slot depends on the
controller application and sensor configuration.
•
If the sensor displays three dashes when pressing the Fan Key, all fan slots are
unassigned or not active.
2. Continue to press Fan Key to scroll through the fan slots. Before the second fan
appears, “-2-” will appear to indicate you are about to view the second fan.
3. Press Up/Down Key as necessary to change fan setting.
4. To enter new selection, press any key besides the Up/Down Key or wait for 5 seconds.
Error
Code
Controller
MNL-xxRxx
MNL-VxRVx
MNL-800
1
EEPROM write or read error
2
Out of range universal input (UI1)
Out of range universal
input (any)
4
Out of range universal input (UI2)
High velocity pressure
N/A
8
Out of range universal input (UI3)
Low velocity pressure
N/A
16
Analog output writing error
N/A
32
Calibration data checksum error or unit is uncalibrated
64
N/A
Invalid RTC
