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TIMER ADJUSTMENT (T AND HT MODELS)
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 1-30 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. CLOCKWISE.
3.
To INCREASE the operating time, use a small screwdriver to turn the
adjuster Fig.5. ANTI-CLOCKWISE.
4.
Replace the fan grille.
HUMIDITY SET-POINT ADJUSTMENT (HT MODELS ONLY)
BEFORE ADJUSTING THE CONTROLLER, SWITCH OFF THE MAINS SUPPLY.
HUMIDISTAT
SHOULD
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 65-95%RH by
altering the adjuster on the control PCB.
2.
To LOWER the set-point use a small screwdriver to turn the adjuster
Fig.5. ANTI-CLOCKWISE. This makes the controller MORE sensitive.
3.
To RAISE the set-point use a small screwdriver to turn the adjuster Fig.5.
CLOCKWISE. This makes the controller LESS sensitive.
4.
Replace the fan grille.
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.
ONLY
BE
ADJUSTED
5
BEFORE
OR
DURING
EN
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