Set Velocity Sensor Range; Set Velocity Setpoint - Lennox Prodigy M2 Application Manual

5. Return the economizer DIP switch to original position.

7.12.4.3. Set Velocity Sensor Range

The velocity sensor is factory−set for 0−5m/s. (0−984ft/min.) If a higher velocity is required, move the sensor jumper as shown
in figure 18.
A24 Velocity Sensor

7.12.4.4. Set Velocity Setpoint

1. Measure DC voltage between TB22−6 and TB22−10.
2. Multiply DC voltage by 25.4.
3. Round to the nearest whole number, and enter the result in ECTO 9.02.
506457−01 05/10
DSET (Damper Set)
Figure 17 Economizer Manual Damper Set DIP Switch
.
0−5m/s (0−984ft/min.)
JUMPER
Factory Setting
V+
GND
AV
Figure 18. Velocity Sensor (A24) Range
OPEN
NOTE − Damper set" mode
locks economizer into mini-
mum position.
0
100
MIN POS SET
0−7.5m/s (0−1476ft/min.)
1
2 V+
GND
3
AV
Page 32
7.
0−10m/s (0−1968ft/min.)
− 24VAC
− Common
− Airflow Output
(0−10VDC)
Economizer