Internal Timer: VA100SVXHT12
The fan contains an adjustable overrun timer. Activated by LS.
1.
Remove the fan grille. The controller is factory set at 15 minutes approx. The overrun time
period can be adjusted from 3-25 minutes by altering the adjuster on the control PCB.
2.
To REDUCE the operating time, use a small screwdriver to turn the adjuster
ANTI-
CLOCKWISE
.
3.
To INCREASE the operating time, use a small screwdriver to turn the adjuster
CLOCKWISE.
4.
Replace the fan grille.
Humidity Set-Point adjustment (VA100SVLH12 / VA100SVXH12 / VA100SVXHT12)
BEFORE ADJUSTING THE HUMIDISTAT, SWITCH OFF THE MAINS SUPPLY. HUMIDISTAT SHOULD
ONLY BE ADJUSTED BEFORE OR DURING INSTALLATION.
1.
Remove the fan grille. The controller is factory set to switch on at about 70% RH. The humidity
set point can be adjusted from 40-95%RH by altering the adjuster on the control PCB.
2.
To LOWER the set-point use a small screwdriver to turn the adjuster
ANTI-CLOCKWISE
. This
makes the controller MORE sensitive.
3.
To RAISE the set-point use a small screwdriver to turn the adjuster
CLOCKWISE
. This makes
the controller LESS sensitive.
4.
Replace the fan grille.
IMPORTANT:
Upon installation it is possible that the humidity controller will make the fan run continuously
until it has acclimatised to the environment. As part of the installation process it is important to set/adjust the
humidity sensitivity to the desired position. The controller is already factory set to switch on at about 70% R.H.
SHUTTER OPERATION
The shutter mechanism in all VA100‘X’ model fans will open approximately one minute after the fan is turned
on. The shutter will close about a minute after the fan is switched off.
NEON OPERATION
The Neon will activate whenever the LS or PULLCORD is activated. The Neon will switch off if the fan is
running in Timer overrun or humidity mode (if applicable).
PULLCORD OPERATION (VA100SVLH12, VA100SVXH12)
The PULLCORD will activate the fan when switched. When the PULLCORD is switched into the off position,
After which the fan will return to the Auto sensing mode. The Neon will only activate if the PULLCORD is in
the ON position.
D. SERVICING AND MAINTENANCE.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM
THE POWER SUPPLY DURING MAINTENANCE.
1. At intervals appropriate to the installation, the fan should be inspected and cleaned to ensure there is no
build up of dirt or other deposits.
2. Wipe the inlets and front face with a damp cloth until clean.
The fan has sealed for life bearings, which do not require lubrication.
Fig. 1
.
Summary of Contents for VA100
Page 2: ......
