SystemAir Danvent DV-10, User Manual

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l.7.2. Risk caused by permanent magnet motor
Hazards/dangerous area:
Rotation of the shaft generates electricity. This danger is always visualized by a yellow warning label on the
inspection door where permanent magnet motors are installed.
Dangerous incident:
Persons touching conductive parts get electric shock, burns, heart flicker and so on.
Claim for reduction of danger:
By installation or repairs of conductive components, the shaft must be blocked to prevent any rotation.
l.7.3 Risk of rotating impeller caused by stack effect (chimney effect).
Hazards/dangerous area:
On special occasions stack effect – also called chimney effect – in the ducts create airflows that drives the
impellers by turned off motors.
Dangerous incident:
Injury of fingers, hands and arms.
Claim for reduction of danger:
Eliminate this airflow for supply air and exhaust air by dampers with spring return motors for automatic
closing of the dampers by turned off fan motors and by power failure.
l.8 Batteries for heating and cooling type DVR – DVH – DVK – DVU
l.8.1 Extreme temperatures ‐ heating
Hazards/dangerous area:
Electrical heating elements can achieve surface temperature of 500 degree Celsius.
Batteries and pipes for hot water can achieve 95 degree Celsius.
Dangerous incident:
According to ISO 13732 ‐ 1:2006, here is no direct risk of burns. (short ‐ time contact – lesser than 2,5 sec).
Claim for reduction of danger:
No.
l.8.2 Extreme temperatures ‐ cooling
Hazards/dangerous area:
Evaporator batteries and pipes connected to cooling compressor can achieve minus 10 degrees Celsius.
Dangerous incident:
According to ISO 13732 ‐ 1:2006, here is no direct risk of burns. (short ‐ time contact – lesser than 2,5 sec).
Claim for reduction of danger:
No.