Manual 2100-749
Page
22 of 68
The threshold of this alarm is adjusted by changing the
settings on the switch (see Figure 30).
Filter Indicator Light
The wall-mount unit is equipped with a 24V indicator
light mounted on side of unit that displays the current
status of the filter (see Figure 30). When the light is
on, the filter needs to be replaced. Once the filter(s)
has been changed and the alarm has been cleared, the
indicator light will turn off.
To view the status of the output:
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
Digital
Outputs
; press ENTER key.
5. Press UP or DOWN keys to scroll to
Digital Outputs
C2-1
.
6. The status is displayed next to
Filter Light
(see
Figure 31).
The filter light output can be put into override to aid in
troubleshooting. The override will only stay active for 5
minutes.
To override the filter light output:
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
Digital
Outputs
; press ENTER key.
5. Press UP or DOWN keys to scroll to
Digital Outputs
C2-5
.
6. Press ENTER key to scroll to
Enable Override
(see
Figure 32).
7. Press UP or DOWN key to change value to
Yes
.
FIGURE 32
Overriding Filter Light Output
8. Press ENTER key to scroll to
Filter Light
.
9. Press UP or DOWN key to change value to
On
or
Off
.
Indoor Airflow Operation
Blower Speed Control
The blower is capable of changing speeds to best
match the requirements of the system depending on
which mode the system is in.
The unit will automatically adjust its blower speed
based on the mode and number of stages active. In
addition to the nominal speeds for each cooling stage,
the controller has the option to enable high sensible
operation or Balanced Climate
TM
operation (see Table 9).
FIGURE 31
Verifying Filter Light Status
TABLE 9
W180 Blower Speed Settings*
* Blower position percentages are communicated through
Modbus and cannot be verified with meter.
Mode
Blower %
230V
460V
Blower Only
35.0
35.0
Free Cooling
48.0
43.0
Cooling
Stage
1
Balanced Climate
20.2
19.3
Nominal
30.0
26.2
High Sensible
37.0
29.0
Cooling
Stages
2 and 3
Balanced Climate
34.6
30.5
Nominal
48.0
43.0
High Sensible
53.0
46.0
Heating Stage 1
48.0
43.0
Heating Stage 2
48.0
43.0
Dehumidification
34.6
30.5
Emergency Ventilation
100.0
100.0
Freeze Condition
48.0
43.0
