Owner`s manual
19
INSTALLATION
External Roof-mounted Power Vent System EuropeanHome.com
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3916067 01.13
3.5AdjustingtheFanSpeedandPostPurgeTime
There are two potentiometers located on the main control board of the ADC100. To increase the fan speed, rotate the
potentiometer labeled Fan Spd clockwise. Alternately, rotating the potentiometer counterclockwise will decrease the
fan speed. In Manual mode, the potentiometer can be adjusted at any time during normal operation to increase or
decrease the fan speed. When the control is in Automatic mode, the potentiometer is only used to set the initial speed
of the fan. After that, the control will automatically adjust the fan speed to ensure the PDS stays closed during appliance
operation.
A second potentiometer, labeled PG Time, is located on the bottom right corner of the control board. The post purge
time is adjustable from 0 (no post purge) to 3 minutes. Turning the knob clockwise increases the post purge time while
turning it counter-clockwise decreases the time.
Fig.5
PurgeTime
FanSpeed
DIP Switch
Figure 9. PV-GS-CM-ADC 100 Fan Speed and DIP Switch
Inside the PV-GS-CM-ADC 100 is mounted a system board in the upper right corner of which is mounted a fan speed
potentiometer and a bank of three DIP switches. Each of the three DIP switches should be set as follows:
- 1 (Left) OFF
- 2 (Center) ON
- 3 (Right) ON
The IPVS is must be set to produce at least 0.05” w.c. of negative draft pressure. After connecting a manometer (not included) to
the system (follow the instructions for the manometer) adjust the fan speed potentiometer until -0.05” w.c. pressure is reached.
Final Step: Ensure all connections are correct, secure all parts and test system for proper operation.