Mitsubishi Electric Lossnay LGH-F300RX3-E User manual

1
English
Safety precautions
The following signs indicate that death or serious injury may be caused by a failure to heed the precautions described below and the resultant
mishandling of the product.
WARNING
●This product must not be disassembled under any circumstances. Only authorized repair technicians are qualified to conduct
disassembly and repairs.
(Failure to heed this warning may result in fire, electrical shock or injury.)
If your product needs to be repaired, consult your dealer.
●Do not splash water over this product.
(Failure to heed this warning may result in fire and/or electrical shock.)
●If flammable gases should leak, do not turn the Lossnay’s switch on or off.
(Failure to heed this warning may cause the electrical contacts to generate sparks which may result in an explosion.)
Open windows to ventilate.
●Do not poke your fingers or sticks into the air intake and outlet while the product is operating.
(Failure to heed this warning may result in injury.)
●Gloves should be worn when doing the installation and maintenance work.
(Failure to heed this warning may result in injury.)
●Be sure that the power board circuit breaker is in the OFF position and is securely locked by lock and key before proceeding with
maintenance work.
(Failure to heed this warning may result in electrical shock or injury.)
●In the event of trouble (smell of burning, etc.), shut down operation, set the power board circuit breaker to its OFF position and
consult your dealer.
(Continued operation without remedying the trouble may result in electrical shock, fire, etc.)
Names of the parts
Models LGH-F300, F470, F600RX3-E Model LGH-F1200RX3-E
No
disassembly
Prohibited
Instructions
must be
followed
Do not touch
Please read through these instructions in order to familiarize yourself with the proper and safe procedures for operat-
ing the Lossnay.
After reading this manual, keep it in an easily accessible and safe place for future reference.
LGH-F300RX3-E
LGH-F470RX3-E
LGH-F600RX3-E
LGH-F1200RX3-E
Lossnay
Models:
Operating Instructions (For the user)
2Control box
3Lossnay core holder
7Air filter5Lossnay core
4Air supply fan
1Maintenance cover
8Damper plate8Air exhaust fan
3Lossnay core holder
7Air filter
5Lossnay core
1Maintenance cover
2Control box 4Air supply fan
8Damper plate
6Air exhaust fan
0509873HC9203

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1. For connection of a remote controller (PZ-41SLB-E)
If the Lossnay’s operation is linked with the operation of an external device such as an air conditioner, the method of use will differ, so carry out
the appropriate operation in accordance with the following table. Also, please see the installation and user’s manual for the remote controller
(PZ-41SLB-E).
<If not connected to an external device>
2. For connection of a Mitsubishi Electric
Air-Conditioner Network System
(MELANS) or City Multi.
This is to be incorporated and used in the Mitsubishi Electric Air-
Conditioner Network System.
This is interlocked with the City Multi and operated by it.
Note
• Remote controller PZ-41SLB-E cannot be used with this sys-
tem.
■System diagram
■LOSSNAY VENTILATE setting
Both fresh air supply and return air pass through the Lossnay core(s).
Resulting in full heat exchange. Lossnay ventilate setting is used for
cooling in the summer and heating in the winter period.
■BY-PASS VENTILATE setting
The fresh air passes through the Lossnay core(s) and the return
room air is exhausted direct. Lossnay bypass ventilate is normally
operated during the spring/autumn months.
<If connected to an external device>
Example of System Function
•If 2 remote controllers are used, the last
controller to be used has priority. (Last
Command)
Operation
Run using the remote
controller.
City Multi
indoor unit
Power
supply
A/C’s remote controller
Lossnay unit
LGH-**RX3-E
M-NET transmission line
Interlocked to the City Multi indoor unit
Operation
•If you would like to turn ON the Lossnay
alone while the external device is OFF,
operate it by the Lossnay remote control-
ler.
•The fan speed is on “High”.
•The ventilation mode is “Ventilation Mode
Auto Select”.
If an external device is
connected the “On/Off”
function of this device will
also control the Lossnay
operation.
Lossnay
Power Supply
Remote Controller
(Optional parts)
(PZ-41SLB-E)
Lossnay
Power Supply
External device
Remote Controller
(Optional parts)
(PZ-41SLB-E)
Power Supply
Operation switch for the external device
Lossnay
Power Supply
Power Supply
Operation switch for the external device
External device
■AUTOMATIC VENTILATION setting
The automatic damper mode automatically provides the correct ven-
tilation for the conditions in the room. The following shows the effect
“By-pass”ventilation will have under various conditions.
Fresh air
Exhaust air
Lossnay core
Damper
Return air
Damper
Return air
Supply air Supply air
Lossnay core
Exhaust air
Fresh air
Models LGH-F300, F470, F600RX3-E Model LGH-F1200RX3-E
Exhaust air
Fresh air
Lossnay core
Damper
Return air
Supply air
Exhaust air
Fresh air
Lossnay core
Damper
Return air
Supply air
Models LGH-F300, F470, F600RX3-E Model LGH-F1200RX3-E

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English
Operation (Continued)
1. Reduces cooling load
If the air outside is cooler than the air inside the building during
the cooling season (such as early morning or at night), “By-pass”
ventilation will draw in the cooler outside air and reduce the cool-
ing load on the system.
2. Night purge
“By-pass”ventilation can be used to release hot air from inside
the building that has accumulated in buildings a business district
during the hot summer season.
3. Office equipment room cooling
During cold season, outdoor air can be drawn in and used as is
to cool rooms where the temperature has risen due to the use of
office equipment.
(Only when interlocked with City Multi and Mr. Slim indoor unit)
Remove all dust and dirt on air filters and Lossnay core(s) at regular
intervals in order to prevent a deterioration in the Lossnay functions.
Guideline: Clean the air filters once a year.
Clean the Lossnay core(s) once two year.
Removing the parts
1) Maintenance cover
Locate and remove the cover fixing screw. Pull back the hinged clip.
Open the door and lift off of the hinge brackets.
2) Lossnay core(s)
Take hold of the handle and draw the Lossnay cores out from the
main unit.
Model LGH-F300, F470, F600RX3-E: ....................... 2 cores
Models LGH-F1200RX3-E: ....................................... 4 cores
3) Air filters
After pulling out the Lossnay core(s), pull the air filters, located at
the bottom left and right of the Lossnay core(s), off the velcro that
holds them in place.
Model LGH-F300, F470, F600RX3-E: ....................... 4 filters
Models LGH-F1200RX3-E: ....................................... 8 filters
Cleaning the parts
1) Air filters
Use a vacuum cleaner to remove light dust. To remove stubborn dirt
wash in a mild solution of detergent and lukewarm water. (under 104°F)
CAUTION
•Do not use the hard nozzle of the vacuum cleaner. It may dam-
age the exposed surfaces of the Lossnay core(s).
•Under no circumstances should the Lossnay core(s) be washed
in water.
Maintenance
CAUTION
•Never wash the filters in very hot water and never wash them
by rubbing them.
•Do not dry the filters by exposing them to a flame.
2) Lossnay core
Use a vacuum cleaner to suck up the dust and dirt on the exposed
surfaces of the Lossnay cores. Use a soft brush only to clean ex-
posed surface areas.
Corner Vacuum cleaner
(with brush attachment)
Lossnay core
Do NOT wash in water.
Vacuum cleaner
Air filter
Hinge
Hinge bracket
Maintenance cover Maintenance covers
Hinge
Air filters
Velcro
Lossnay core
Handle Handle
Lossnay
core
Models LGH-F300, F470, F600RX 3 -E Model LGH-F1200RX 3 -E
Lossnay core
Main unit
Hinge bracket
Models LGH-F300, F470, F600RX3-E Model LGH-F1200RX3-E

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Specifications
* The values given in the table for the sound level reflect the levels measured at a position 59 inch immediately below the unit in an anechoic
chamber.
* The sound at the air outlets is the values at a 45°angle, 59 inch in front of the unit.
* The above values apply during Lossnay ventilation when the fan speed is set to extra high speed.
* The values are under 230V 60Hz.
Model name Voltage (V) Line
frequency
(Hz)
Current (A)
Power
consumption
(W)
Static
pressure
Air volume Sound level (dB(A))
Excharge efficiency (%)
Weight
(Ibs)
Air
outlets
Below
the unit
(CFM)
Temperature
Enthalpy
Heating Cooling
1-Phase
208 - 230
LGH-
F300RX3-E 60 1.3 278 300 69 62 44 73
1-Phase
208 - 230
LGH-
F600RX3-E 60 2.9 654 600 69 62 44 159
1-Phase
208 - 230
LGH-
F1200RX3-E 60 5.7 1290 1200 69 62 44 395
0.65
0.80
0.75
(in. H 2 O)
44
47
52
36
1-Phase
208 - 230
LGH-
F470RX3-E 60 2.5 560 470 69 62 44 1430.96 50.539
39
41
Consult with your dealer about the after-sales services provided for this
Lossnay product.
After-sales servicing
Assembly after maintenance
1. Bearing in mind the following points, assemble the parts following the
sequence for their removal in reverse.
•Align the air filter with the grooves on the Lossnay and holder and
push it in.
•When installing the air filters, take care not to damage the exposed
surfaces of the Lossnay cores.
2. Press the filter button on the remote controller (PZ-41SLB-E) two
times in succession.
(This clears the Lossnay’s operating time cumulative data.)
Maintenance (Continued)
If you hear strange sounds, if no air is blown out or if some other
trouble occurs, switch off the power and contact your dealer.
Consult with your dealer concerning the cost of inspection or
repair work.
Relevant button
FILTER
(Press twice)
FILTER
Relevant display items
MITSUBISHI ELECTRIC CORPORATION