TEL AFA4000/E - Page 152

AFA4000/E VAV Airflow Controller / p.152
8.5.3 Pressure Cell PCB settings and calibration
Figure 71: Pressure cell PCB location
The pressure cell PCB has a 4-way switch bank and 3 LEDs. (Bold = default)
SW1
SW2
SW3
SW4
Mode
Range
OFF
OFF
OFF
TARE
Output
proportional to
Volume
5 V @ 100 Pa,10 V @ 400 Pa
ON
OFF
5 V @250 Pa,10 V @ 1000 Pa
OFF
ON
5 V @ 500 Pa,10 V @ 2000 Pa
ON
ON
5 V @ 1000 Pa,10 V @ 4000 Pa
OFF
OFF
ON
TARE
Output
proportional to
Pressure
5 V @ 100 Pa,10 V @ 200 Pa
ON
OFF
5 V @250 Pa,10 V @ 500 Pa
OFF
ON
5 V @ 500 Pa,10 V @ 1000 Pa
ON
ON
5 V @ 1000 Pa,10 V @ 2000 Pa
OFF/ ON
0 24 10 0 24 10 SW +V SW +V SW +V BN BL BK Y BK R
+V 0V SW W Z S
RELAY INTERFACE UNIT
Volt Free Relays
(10A 240VAC AC1)
R1 R2 R3 R AUX
ECON ECON SASH SASH
O/P 1 O/P 2 I/P 1 I/P 2 I/P 3 HIGH SENSOR
ON 1 2 3
AUXILLIARY RELAY SELECT
SWITCH
PRESSURE
CELL PCB
4 WAY
SWITCHBANK
ON 1 2 3 4
OFF
POWER
STATUS
FAULT
PRESSURE CELL PCB