Mitsubishi LGH-50RSDC-E Installation Manual
Lossnay Energy Recovery Ventilator
Model:
0902874HN5301
LGH-50RSDC-E (220-240V 50Hz
Installation Instructions
)
(For use by dealer/contractor)
Contents
Safety precautions.............................................1
Outline drawings................................................2
Standard installation examples..........................3
Installation method.............................................4
Function settings................................................7
Trial operation....................................................8
This product needs to be installed properly in order to ensure maximum functionality as well as safety.
Please make sure to read this installation manual before starting the installation.
lInstallation must be performed by a dealer or installation contractor. Please note that improper installation may cause malfunction or accident.
Separate booklet “Operating Instructions” is provided for the customer.
The booklet and this manual must be handed over to the customer after completing the installation.
Safety precautions
The following signs indicate that death or serious injury may be caused by failure to heed the precautions described below.
Do not modify or disassemble.
(It could cause fire, electric shock or injury.)
Do not
disassemble
The Lossnay unit should not be installed where it is highly
humid, like a bathroom, or other wet place.
Prohibition of use in
bath or shower room
Connect the
grounding wire
The instructions
given must be
followed.
(It could cause electric shock or power leakage.)
Connect the product properly to ground.
(Malfunctioning or power leaks can cause electrical shock.)
.
Use the specified power supply and voltage.
(Use of incorrect power supply or voltage could cause fire or electric
shock.)
Select a place with sufficient strength and install the main unit
securely.
(It could cause injury if it falls.)
WARNING
The instructions
given must be
followed.
Wiring work must be performed by qualified professionals,
and be implemented safely and securely in accordance with
the engineering standards and the extension wiring rules for
electrical equipment.
(Poor connection or improper wiring work could cause electric
shock or fire.)
Install a power supply isolator at the power supply side as per
local electrical regulations.
(It could cause fire if power leakage occurs.)
All supply circuits must be disconnected before obtaining
access to the terminal devices.
Use the specified cable size and connect the cables securely to
prevent disconnection when they are pulled.
(If there is a defect in the connection, there is a possibility of fire.)
Select an adequate place for the opening to introduce outdoor air,
where it will not inhale the exhaust fumes like combustion gas, or
others, and there is no risk of blockage by snowfall or others.
(Shortage of fresh air could put the room in a state of oxygen deficiency.)
A duct made of steel must be installed with care not to be
connected electrically with metals such as metal, wire, stainless
steel plate, or others.
(It could cause fire when power leakage occurs.)
Prohibited
CAUTION
Do not place a burning appliance in a place where it is exposed
directly to the air from the Lossnay unit.
(It could cause an accident as a result of incomplete combustion.)
Do not place an object on or sit on the Lossnay unit.
(It could cause electric shock, fire, or other damage.)
Do not use at a place where exposed to high temperatures (40°C or
higher), naked flames, or in environment with combustible fumes.
(It could cause fire.)
Do not use in an environment such as a chemical factory, where
hazardous gases such as acidic gases, alkaline gases, organic
solvent fumes, paint fumes, or gases containing corrosive
components are generated.
(It could malfunction.)
Insulation failure caused by salt or sulphur air and hot spring
steam, Rust, fire or malfunction may occur.
Installing high quality filters inside outdoor air duct if the
Lossnay operates in salt or sulphur air conditions.
Do not install this product in a place where it is exposed to
ultraviolet light.
(UV may damage covering insulation.)
The instructions
given must be
followed.
Put on gloves during maintenance.
(It could cause injury.)
Make sure the power supply isolator is turned off on the power
distribution panel when Lossnay is not used for a long period
of time after the installation.
(It could cause electric shock, power leakage, or fire as a result of
deteriorated insulation.)
Always use the specified suspension bolts, nuts and washers.
(Use of hardware with insufficient strength could result in the product
dropping.)
The outside ducts must be tilted at a gradient (1/30 or more) down
toward the outdoor louvres from Lossnay, and properly insulated.
(The entry of rain water may cause power leakage, fire, or damage
to household property.)
The control box cover must be closed after the installation.
(Dust or humidity may cause power leakage or fire.)
When connecting external devices (electrically operated damper,
lamp, monitoring unit, etc.) using output signals of the Lossnay unit,
make sure to install safety equipment for the external devices.
(It could cause fire, damage, etc. without safety equipment.)
10
73
1099
810
21
979 2020
21
7
1051
680
264
1119
283.5
302
20
89879 79
192
208
Safety precautions (continued)
lWhen using the product where it is exposed to high
temperatures and humidity (40°C or higher, RH 80% or higher),
or where fog occurs frequently, moisture is likely to condense
in the core, and may result in condensation build up in the unit.
The product should not be used under such conditions.
lOutdoor air may enter the Lossnay owing to the pressure
difference between indoor and outdoor or external winds even
when the product is not operated. It is recommended to install
also an Electrically operated damper to block the outdoor air.
lIn a cold weather area, an area with strong external winds or
where fog occurs frequently, cold outdoor air, external winds
or fog may be introduced into the product when its operation is
stopped. It is recommended to install an Electrically operated
damper to shut them out.
Outline darawings
CAUTION
lWhen using the product in an environment where there is a
window, or opening near the outdoor louvre , where insects
are likely to gather around the interior or exterior light , take
note that small insects may intrude into the product.
lIn a cold weather area, or others, dewing or freezing could
occur on the main unit, where the duct is connected, or other
sections, depending on the conditions of outdoor air and
indoor temperature and moisture, even if they are within
the range of operating conditions. Make sure to confirm the
operating conditions and other precautions, and do not use
the product if dewing or freezing is anticipated.
*Example of dewing condition – Outdoor air: -5°C or lower,
dew-point temperature at installation place: 10°C or higher
(When the indoor temperature is 22°C or higher with the
relative humidity higher than 50%, or other)
Accessory parts
lMounting screws.....................................x24
lDuct connecting flanges...........................x4
(double flanges at SA and EA sides)
Power cord opening
RA
(return air)
SA
(supply air)
Wall anchor point
(2-13x30 oval)
Bypass damper plate
Control box Maintenance cover
Air exhaust fan
EA
(exhaust air outlet)
OA
(outside air intake)
Ceiling suspension fixture
(4-11x10 oval)
(Air filters)
Foot plate
Air supply fanLossnay cores
Weight : 46 kg
Unit (mm)
2
Standard installation examples
EA
(exhaust air outlet)
OA
(outside air intake)
OA (outside air intake)
EA (exhaust air outlet)
lIn 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.
lThis product is designed to use horizontally as the figure or upside
down. Do not install vertically with the product suspension fixture.
lThe outside sir intake must be located where no rainwater or fog
comes in to prevent the intake of water.
Example
Electrically operated damper
(Protection against the intrusion of cold air while Lossnay is stopped in winter)
(To be provided by the customer)
Lossnay unit
<Installation horizontally><Installation vertically>
Anchor bolt
(to be provided by user)
Washer
Unit
Maintenance
space
Washer
More than
400
Supply air grille
Nut
Wall
Unit
Nut
Return air grille
Keep the unit more than 5mm away from the wall.
Downward gradient of duct:
1/30 or more (toward wall side, provide
1m or more) (to prevent rain water from
seeping in)
Maintenance
space
Unit
More than
400
SA
(supply air)
Supply air grille
Return air grille
RA
(return
air)
More
than 5
Duct
OA
(outside air intake)
EA
(exhaust air outlet)
EA
(exhaust air outlet)
OA
(outside air intake)
EA
(exhaust air outlet)
Maintenance space
Top/bottom reverse installation is not available
for this unit
Downward gradient of duct:
1/30 or more (toward wall side, provide
1m or more) (to prevent rain water from
seeping in)
Maintenance
space
Unit
Unit
More than
400
Supply air grille
More than
1200
Anchor bolt
(to be provided by user)
More than
1000
Return air grille
Floor
Unit should be on the floor by foot plate.
OA
(outside air intake)
OA
(outside air intake)
EA
(exhaust air outlet)
Duct
RA
(return air)SA(supply air)
Return air grille
Do not install the unit on the ceiling plate directly to prevent
the unit from falling, and making vibration and noise.
3
Supply air grille
Unit (mm)
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