Award CS1-903S, Instruction Manual

7 

 
HINTS FOR EXHAUST DUCT INSTALLATION 

The following rules must be strictly followed to obtain optimal air extraction: 
• Keep expansion pipe short and straight. 
• Do not reduce the size or restrict the expansion pipe. 
• When using the expansion pipe always install the pipe pulled taut to minimize 
pressure loss. 
• Failure to observe these basic instructions will reduce the performance and increase 
noise levels of the range hood. 
• Any installation work must be carried out by a competent qualified electrician. 
•Do not connect the ducting system of the range hood to any existing ventilation 
system which is being used for any other appliance, such as warmer tube, gas tube 
and hot wind tube. 
•The angle of the bend of the expansion pipe should not be less than 120º; you must 
direct the pipe horizontally, or, alternatively, the pipe should go up from the initial point 
and should be led to an outer wall. 
•After the installation, make sure that the range hood is level to avoid grease collection 
at one end. 
•Ensure the expansion pipe selected for installation complies with relevant standards 
and is fire retardant.



WARNING:



For safety reason, please use only the same 
size of fixing or mounting screws which are 
recommended in this instruction manual. 



Failure to install the screws or fixing device in 
accordance with these instructions may result 
in electrical hazards.