Mitsubishi Electric LGH-15RX5-E Installation Instructions Manual page 4

Installation method (continued)
If the suspension bolts are short, change the
mounting hardware.
For the models LGH-80 and 100 RX
(1) Remove the suspension fixture and mount it to the upper mounting
position.
(2) Replace screws in the holes for the suspension fixture that has been
removed to prevent air leakage.
Screws
Models LGH-80 and 100 RX
4. Connecting the ducts
(1) Fasten the duct securely to the duct connecting flange, and wrap
aluminum tape (not included) around the joints so that there is
no air leakage.
(2) Suspend the ducts from the ceiling so that their weight will not
be applied to the Lossnay unit.
(3) The two outdoor ducts must be covered with heat-insulating ma-
terial in order to prevent condensation from forming.
Models LGH-15 to 100 RX
Taping
Models LGH-150 and 200 RX
Taping
Heat-insulating
material
Duct connecting flange
4
5
Suspension fixture
5
5
Duct
Aluminum tape
Heat-insulating
material
Lossnay
unit
Outdoor duct
Duct connecting
flange
5
Duct
Aluminum tape
Heat-insulating
material
Lossnay
unit
Outdoor duct
Duct connecting flange
CAUTION
• Before attaching the ducts, check that no (debris or any other)
foreign matter (scraps of paper, vinyl, etc.) has found its way
inside the ducts.
• Do not touch the damper plate inside Lossnay unit when con-
necting the ducts.
• If it is expected that the ambient temperature around the place
where the Lossnay unit is installed will be high during the
summer air conditioning season, it is recommended that the
indoor ductwork be covered with insulation material.
Do not carry out the following types of duct construction. (Doing so
could cause a drop in the air volume and generate abnormal noises.)
• Extremely • Multiple bends
sharp bends
5. When changing the direction of the out door
side duct (EA/OA)·····Except for LGH-150 and
200 RX
5
(1) Removal of flange cover
Unscrewing the flange cover mounting screws (4 pcs), remove
the flange cover.
Ceiling suspension fixture
Flange cover
Mounting screw
(for flange cover)
(2) Installation of duct connecting flange
1. Install the duct connecting flange using attached mounting
screws.
2. Fix the removed flange cover with the removed mounting
screws (4 pcs).
Duct connection flange
Mounting screw
(Accessory parts)
• Bends right next to • Extreme reduction in
the outlet the diameter of the
connected ducts
Ceiling
suspension fixture