An internal temperature sensor prevents the unit from overheating. The temperature sensor will limit the current
to leds, protecting their integrity, if the ambient temperature exceeds the one allowed.
To ensure maximum functionality and light output it is recommended to follow these instructions:
6.1 Cleaning the unit
The unit must be cleaned regularly. Cleaning regularity will depend especially on the environment where the unit
will operate: deposits of dust, smokes or other wastes will reduce the light output performances.
• Clean regularly the glass of the unit.
• Be careful when cleaning the components. Operate in a clean, properly illuminated environment.
• Do not use solvents which could damage painted surfaces.
• Remove left particles by a cotton towel dampened with a glass-cleaning liquid or distilled water.
• Remove smoke and other wastes by a cotton towel dampened with isopropyl alcohol.
• Dry out by a clean, soft, non-scratching towel or by compressed air.
6.2 Regular checks
• Check electrical connections, especially the ground wiring and the power supply cable.
• Check that the unit is not damaged mechanically. Replace those components which have got deteriorated.
6.3 Tightening torque
In case of opening of the projector body or of the rear boxes, the screws of the glass holder must be tightened
by a 4 Nm tightening torque, while the screws of the rear boxes by a 2.5Nm tightening torque.
All components of the unit are available as spare parts at
Griven
dealers.
Exploded views, wiring diagrams, electronic layouts and advertising brochures are available on request.
To make the job of assistance centres easier, specify serial number and model of the unit which spare parts are
requested for.
The POLAR Edition of the projector is fitted with a thermal glass which is particularly useful for outdoor applications.
In fact, by warming up the glass melts ice and snow which might interfere with the projection.
When the projector is on, if required by the weather conditions, the glass is automatically warmed up.
If the projection is to be started at a definite time, take care to defrost the glass in advance so that the leds can
be lit at the time required.
With very cold temperatures (below -20° C), we recommend you to let the projector always powered and switch
on the LEDs when needed.
5.0 Thermal protection
6.0 Maintenance
Attention!
Always remove mains power prior to opening up the fixture.
7.0 Spare parts
8.0 No frost glass
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