Manual 2100-749
Page
23 of 68
High Sensible Operation
In high sensible operation, the blower speed will be
raised for each stage of cooling to increase the sensible
cooling of the equipment. With this option enabled, the
higher speeds will be used during compressor operation
unless passive or active dehumidification modes are
operating.
Balanced Climate Operation
In Balanced Climate operation, the blower speed will
be lowered for each stage of cooling to improve the
moisture removal capabilities of the equipment. With
this option enabled, the lower speeds will be used
during compressor operation when the indoor humidity
is above the passive dehumidification setpoint.
NOTE:
Blower speeds may revert back to nominal
speeds during active dehumidification if electric
reheat is used.
To enable or disable either high sensible operation or
Balanced Climate operation:
1. Press MENU key to access the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to
Sys Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Blower Config
A10
screen.
5. Press ENTER key to scroll to
Balanced Climate
or
High Sensible
parameter (see Figure 33).
6. Press UP or DOWN key to change value from
Off
to
On
or
On
to
Off
.
FIGURE 33
Enabling/Disabling High Sensible Operation or
Balanced Climate Operation
The unit will automatically switch to the required
speed for each mode. For more information on the
high sensible command from LC, please see LC6000
Service Instructions 2100-669.
Additional Indoor Airflow Alarms
Supply Air Temperature Alarm
When the supply air temperature sensor value is out of
range (-41.0 to 303.0°F), the controller will generate
a sensor failure alarm to indicate the sensor is not
working properly.
This alarm is fixed and cannot be adjusted.
Condenser Fan
Condenser Fan Components
Condenser Fan
The unit is equipped with a condenser fan that is
driven by an electronically commutated motor (ECM).
This fan is controlled by a 0-100% command using
Modbus serial communication. The fan operates
between 100-1200 rpm.
To enable fan override:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
TECHNICIAN password 1313.
3. Press UP or DOWN keys to scroll to
I/O Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Fans / Blowers
;
press ENTER key.
5. Press UP or DOWN keys to scroll to
Condenser Fan
1 C5-3
or
Condenser Fan 2 C5-4
(see Figure 34).
FIGURE 34
Enabling Fan Override
