Installation Manual

Eng-4
3. Standard installation examples
Model Distance
LGH-F300 and F380RVX2-E 3.3 ft (1 m) or more
LGH-F470 and F600RVX2-E 8.2 ft (2.5 m) or more
LGH-F940 and F1200RVX2-E 9.8 ft (3 m) or more
• The parts can also be installed upside down.
Remove the maintenance cover, rotate the parts
by 180°, and re-install.
• Duct length
4. Installation method
EA
(exhaust air outlet)
Inspection opening
(1.5 x 1.5 ft (450x450 mm) or more)
SA
(supply air)
Supply air grille
(not included)
Deep hood
(to prevent rain water from
seeping in)
Downward gradient of duct:
1/30 or more (toward wall side) and provision of distance
in table below (to prevent rain water from seeping in)
Duct
Anchor bolt (to be provided by user)
RA
(return air)
Return air grille
(not included)
OA
(outside air intake)
Lossnay unit
Duct connecting ange
(Accessory parts)
Mounting small
screw
(Accessory parts)
Mounting small screw
(Accessory parts)
Duct connecting ange
(Accessory parts)
Models LGH-F300 to F600RVX2-E
Models LGH-F940 and F1200RVX2-E
Lossnay unit
Return air grille
(not Included)
Maintenance space
Inspection opening
EA (exhaust air outlet)
OA (outside air intake)
Supply air grille
(not included)
* Except the LGH-F940 and F1200RVX2-E.
Remote controller
(optional parts)
EA
(exhaust
air outlet)
OA
(outside
air intake)
* It can be installed by inverting the top and the bottom.
After installing the duct
connecting ange,
remove the maintenance
cover. Turn the cover by
180˚, and then reinstall it.
Maintenance
space
Lossnay unit
Inspection
opening
EA
(exhaust
air outlet)
OA
(outside
air intake)
EA
(exhaust
air outlet)
OA
(outside
air intake)
Lossnay unit
Electrically operated damper
(Protection against the intrusion of cold air
while Lossnay is stopped in winter)
(To be provided by the customer)
• In a region where there is risk of freezing in winter, it is
recommended to install an electrically operated damper, or the like,
in order to prevent the intrusion of (cold) outdoor air while Lossnay
is stopped.
CAUTION
• Do not install Lossnay unit vertically or on an incline.
4.1 Hanging the Lossnay unit
4.1.1 Attaching the duct connecting anges
Use the supplied small screws to secure the duct connecting
anges to the Lossnay unit.
CAUTION
• Before attaching the duct connecting anges, check that no
foreign matter (scraps of paper, vinyl, etc.) has found its way
inside to Lossnay unit.
• Attach the duct connecting anges with the packing at the SA
and RA sides.
• Alway use accessory screws. Otherwise the screw may
interfere internal parts and result abnormal operation.
4.1.2 Securing the ceiling suspension xtures
Models LGH-F300 to F600RVX2-E
(1) Loosen the screws for the ceiling suspension xtures.
(2) Rotate the ceiling suspension xtures 90° centered around the
loosened screws to make them horizontal.
(3) Firmly tighten and secure the ceiling suspension xtures to the
product with the loosened screws and the included mounting
large screws.
* The ceiling suspension xtures are folded and secured to the
unit when shipped from the factory.
Loosen
Mounting large
screw
(Accessory parts)