VTC-1D user manual
Phason
8
2009-06-19
Setting minimum ventilation in auto shut-off mode
There must be a temperature probe connected before adjusting the minimum ventilation.
To adjust the idle speed
1.
Turn the
Idle Speed
knob fully counter-clockwise and then 1/4 turn clockwise.
2.
Press and hold the switch to the right
3.
Turn the
Temperature
knob fully clockwise while holding the switch to the right.
4.
Release the switch.
The fan should be off.
5.
Press and hold the switch to the right.
6.
Slowly turn the
Temperature
knob counter-clockwise. When the fan runs at full speed, stop turning the
knob and release the switch.
The fan runs at full speed for approximately three seconds and then at the idle speed. The
Temperature
knob should be approximately one degree higher than the display temperature.
7.
Slowly adjust the
Idle Speed
knob until the fan runs at the proper idle speed.
A voltmeter is helpful for determining the voltage. If you are unsure, see your fan dealer for the
minimum idle voltage for your fan motor.
8.
Press and hold the switch to the right.
9.
Turn the
Temperature
knob to the desired temperature set point while holding the switch to the right.
The temperature set point can be between 32 and 98°F (0 and 38°C).
Setting minimum ventilation in idle mode
There must be a temperature probe connected before adjusting the idle speed.
To adjust the idle speed
1.
Turn the
Idle Speed
knob fully counter-clockwise.
2.
Press and hold the switch to the right
3.
Turn the
Temperature
knob fully clockwise while holding the switch to the right.
4.
Release the switch.
The fan should be running at idle speed.
5.
Slowly adjust the
Idle Speed
knob until the fan runs at the proper idle speed.
A voltmeter is helpful for determining the voltage. If you are unsure, see your fan dealer for the
minimum idle voltage for your fan motor.
6.
Press and hold the switch to the right.
7.
Turn the
Temperature
knob to the desired temperature set point while holding the switch to the right.
The temperature set point can be between 32 and 98°F (0 and 38°C).
