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FIGURE 10. PCB BOARD
(default settings)
12.9 BOOST AIRFLOW WITH JS9 SWITCH & NO SWITCH LIVE FITTED
12.9.1 Set the JS9 switch to position 1.
12.9.2 Remove the cover of the JS9 switch.
12.6.3 Adjust potentiometer RV1 to set the required airflow. See Figure 9.
12.6.4 On a larger premises, when the required airflow has not been reached, set JS9 to
position 2 and adjust potentiometer RV2 until the required airflow is reached.
RED LED
FLASHING
LIGHT
HUMIDISTAT
SENSOR
RV1
RV2
INSTALLER
MODE
SWITCH
DIP
SWITCH
FIGURE 11.
POTENTIOMETERS ON REVERSE OF SWITCH
COVER
1
2
TABLE 3
DIP SWITCH
(Factory Set)
FAN 2
RV1
EXTRACT FAN ADJUSTER
FAN 1
RV2
SUPPLY AIR FAN ADJUSTER
ON
1 2 3 4
DIP SWITCH POSITIONS
1
2
3
4
ON
OFF
ON
ON