Installation Of Main Body; Connection Of Duct - LG Ventilator Installation Manual

Installation of Main Body

Assembly of Washer, Nut
Tighten the commercial washer nut (more than 21mm
for the outside diameter of M10, to the commercial
ceiling fixing bolt (M10) as shown in the left figure.
• For the ceiling fixing bolt, perform work less than
50mm under the ceil fixing bracket.

Connection of Duct

1. After securely connect the duct with the duct
connection flange, wrap it with a commercial
aluminium tape so that air cannot be leaked.
2. Adjust the duct from the ceiling so that no force is
applied to the main body of the ventilation system.
3. Always use two ducts at the outdoor with the heat
insulating material for prevention of dewing.
CAUTION:
• Check that there are no foreign materials (paper,
vinyl, etc) or cutoff powders in the duct before
connecting the duct.
• Take care so that shock may not be applied to the
damper plate within the main body when performing
the duct connection work.
• It is recommended to perform adiabatic treatment
even to the duct pipe at the indoor side where
ambient temperature is expected when the main body
of the ventilation system for cooling in summer.
• Take care so that work may not be performed as in
the left figure. Otherwise, it may cause reduction of
air volume or abnormal noise.
Rapid Bending Excessive Bending
Duct to OA
Duct Connection Flange
Too Close Bending
to Outlet
Installation Manual 13
Installation
Ceiling Fixing Bolt
(M10~12)
Nut
Washer, Spring Lock
Washer, Plain
Nut
Duct
Taping
Duct
Taping
Heat Insulating Material
Aluminium
Main Body
Rapid Reduction of
Duct Diameter