Installation
1. A minimum of 2 x 150mm round duct ( CXWB1208 ) and A minimum of 3 x 150mm round
duct ( CXWB1480 ) standard for these range hoods, must be used to maintain maximum
airflow efficiency. All ducting must be flued individually.
2. Flexible 150mm round duct is provided for convenience, always use rigid type
metal/aluminum ducts if available to maximize airflow when connecting to provided duct.
3. Please use Duct Run Calculation below to compute total available duct run when using
elbow, transitions and caps
4. ALWAYS, when possible, reduce the number or transitions and turns. If long duct run is
required, increase duct size from 150 mm to 200 mm. If a reducer is used, install a long
reducer instead of a pancake reducer. Reducing duct size will restrict airflow and decrease
airflow, thus reduce duct size as far away from opening as possible.
5. Minimum mount height between range top to hood bottom should be no less than 120cm.
6. Maximum mount height should be no higher than 135cm.
7. It is important to install the hood at the proper mounting height. Hoods mounted too low
could result in heat damage and fire hazard; while hoods mounted too high will be hard to
reach and will loose its performance and efficiency.
8.
If available, also refer to manufacturer’s height clearance requirements and recommended
hood mounting height above range.
Minimum Duct Size:
1. Round 2x150 mm (minimum) CXWB 1208
2. Round 3x150 mm (minimum) CXWB 1480
