Installation - Ducting - MABRU POWER SYSTEMS SC Series Installation Manual

INSTALLATION - DUCTING

Good airflow is critical for the performance of the entire system. The ducting should be run as straight, smooth
and taut as possible, minimizing the number of 90˚ bends (two 90˚ bends can reduce airflow by 25%).
THE FOLLOWING IS A SUMMARY OF PROPER DUCTING CONNECTIONS.
Pull back the fiberglass insulation exposing the inner Vinyl duct hose.
Slide the Vinyl duct hose around the mount ring until it bottoms out.
Use Hose clamps or zip tie wraps to adjust duct hose into the transition ring. Make Sure duct are properly
secured, so the hose will not slide off.
Wrap duct tape around the ducting and ring joint to prevent any air leaks.
Pull the insulation back up over the Vinyl duct to the ring and tape this joint.
Remove excess ducting and use the same connection method at the supply (discharge) air grill.
ALL DUCTING SHOULD:
Be appropriately sized for each application.
Run as smoothly and taut as possible.
Have as few bends or loops as possible.
Be securely fastened to prevent sagging during boat operation.
Have all excess ducting lengths trimmed off.
Not be flattened or kinked.
Insulated when located in high heat load areas (hull side, mechanical compartments, etc.).
Be properly protected against potential damage when routed through open areas.
Do not route ducting through engine room or any area where it may be exposed to dangerous vapors or
exhaust fumes.
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