Specifications

11
Ducting and Ventilation
• For best performance and lowest noise output, we recommend
the use of 150mm ducting. Use of any smaller ducting will reduce
performance and increase noise.
• The length of ducting should not exceed 5 metres in total.
• Limit the use of elbows in the ducting to a minimum: Bear in mind
that each elbow imposes a similar restriction to flow to a 1 metre
length of straight ducting.
• Avoid abrupt changes in direction for the ducting.
• Ensure that the ducting used satisfies all local and national
standards applicable to the installation.