Vent-Axia SUPRA 100 B Manuel D'utilisation Original page 6

SUPRA 100 TM
Single speed with PIR (passive infra-red) detector and overrun timer. The fan starts automatically
when a movement is detected and will continue to operate for the set overrun time period. Fig. 1.
TIMER ADJUSTMENT
BEFORE ADJUSTING THE TIMER, SWITCH OFF THE MAINS SUPPLY. TIMER
SHOULD ONLY BE ADJUSTED BEFORE OR DURING INSTALLATION.
1. Remove the fan grille. The controller is factory set at 15 minutes approx. The
overrun time period can be adjusted from 5-30 minutes by altering the adjuster
on the control PCB.
2. To REDUCE the operating time, use a small screwdriver to turn the adjuster
Fig.5. ANTI-CLOCKWISE.
3. To INCREASE the operating time, use a small screwdriver to turn the adjuster
Fig.5. CLOCKWISE.
4. Replace the fan grille.
SUPRA 100 HT
The fan contains an integral humidity controller. In automatic mode the controller switches the fan
on at full speed when the room Relative Humidity (RH) increases. The fan will continue to run until
the room RH falls.
These fans also include a built in timer function. The timer can be activated by removing the
Jumper JP1, (Fig. 6) this will give the fan a fixed over run time of approx. 15 mins.
HUMIDITY SET-POINT ADJUSTMENT
BEFORE ADJUSTING THE CONTROLLER, SWITCH OFF THE MAINS
SUPPLY. HUMIDISTAT SHOULD ONLY BE ADJUSTED BEFORE OR
DURING INSTALLATION.
1. Remove the fan grille.
2. To INCREASE SENSITIVITY, turn the adjuster anti-clockwise. This will
reduce the internal Relative Humidity set point at which the fan switches on.
(Fig. 6)
3. To REDUCE SENSITIVITY, turn the adjuster clockwise. This will increase the
internal Relative Humidity set point at which the fan switches on. (Fig. 6)
The integral pullcord activates the internal 15 minute timer. The timer can be cancelled by
pulling the pullcord again. The pullcord can be removed by cutting the cord.
COMFORT MODE (HT models only)
The HT models include Comfort Mode that can be activated via holding the pullcord for 5 seconds.
This feature delays the LS input boost operation for a maximum of 20 minutes to reduce noise and
cold drafts while bathing. After the LS is disconnected, the fan will switch on for the same period
the LS had been active (up to 20 minutes), plus the overrun time period if selected (0 or 15
minutes).
The LED will slowly blink repetitively (every 4 seconds) during comfort mode lead-in time period.
The LED transitions from blinking to solid LED on when LS boost is activated.
The fans internal Relative Humidity sensor is disabled during Comfort
Mode. This feature resets if there is a power cut.
SPEED SELECTION (HT models only)
The fan can be set to run on high or low speed depending on the installation requirements.
The fan is factory set to low speed with jumper JP2 fitted. To activate the high speed setting
remove jumper JP2. (Fig. 6)
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