MITSUBISHI ELECTRIC LGH-F300RVX2-E Lossnay Energy Recovery Ventilator Instruction Manual

ELECTRIC LGH-F300RVX2-E Lossnay Energy Recovery Ventilator
Instruction Manual

MODELS:
LGH-F300RVX2-E, LGH-F380RVX2-E, LGH-F470RVX2-E,
LGH-F600RVX2-E, LGH-F940RVX2-E, LGH-F1200RVX2-E

Please read this manual carefully before use for proper and safe use.
Do not attempt to install the product by yourself.

Safety precautions

The following signs indicate that death or serious injury may be caused by failure to heed the precautions described below.

WARNING

Prohibited| Do not turn the unit on or off when flammable gas has leaked.
(It could catch fire or cause an explosion with sparks released from the electrical contractor.)
Open windows to ventilate.| Wet hands prohtuxid| Do not operate with wet hands. (Electrical shock can result.)
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The instructions
given must be
followed,| Use the specified power supply and voltage. (Use of incorrect power supply could cause fire or electric shock.)
Make sure the power supply Isolator Is turned off on the power distribution panel before starting maintenance.
(It could cause electric shock or injury if it is turned on.)
When any abnormal conditions (burning smell, or
others) are observed, stop operation, turn off the
power supply isolator on the power distribution
panel and consult your dealer.
(Continuing operation under such conditions could cause, electric shock, fire, or damage.)
Do not disassemble| Do not modify or disassemble.
(It could cause fire, electric shock, or injury.)
Do not wet| Do not apply water to the unit and remote controller. (Electrical shock can result.)
Do not touch| 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.)

CAUTION

Prohibited| Do not place a burning appliance in a place where it is exposed directly to the wind from Lossnay.
(It could cause an accident as a result of incomplete combustion.)
Do not operate with the “BY-PASS” when heating the room in winter.
(Condensed water may drip from the unit and wet the
the surface of the ceiling.)
Do not use it at a place where exposed to high
temperatures (104˚F(40˚C) or higher), naked flames,
or in an environment with heavy fumes.
(It could cause a 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.)| The instructions
given must be
followed.| Securely install parts after maintenance.
(It could cause injury if parts fall.)
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.
(It could cause electric shock, power leakage, or fire as
a result of deteriorated insulation.)
This appliance is not intended for use by persons
(including children) with reduced physical sensory
or mental capabilities, or lack of experience
and knowledge, unless they have been given
supervision or instruction concerning the use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
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Names of the parts

Operation

Lossnay can be connected with Lossnay remote controller (PZ-62DR-E), and other systems (City Multi, Mr.Slim, Central controller (MEANS) )
The following shows the use of PZ-62DR-E. Please refer to the manuals for the other systems.
For connection of a Lossnay remote controller (PZ-62DR-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 manual for the Lossnay remote controller (PZ- 62DR-E).

< Not connected to an external device>

Remote Controller
(Optional parts)
(PZ-62DR-E)| Run using the remote controller.| •If 2 remote controllers are used, the last controller to be used has priority. (Last Command)

< Connected to an external device> 

Remote Controller (Optional parts) (PZ-62DR-E)| If an external device is connected to the “On/Off” function of this device, it will also control the Lossnay operation.| • If you would like to turn ON the Lossnay alone while the external device is OFF, operate it with the Lossnay remote controller.
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| • The fan speed is on Fan speed 3 or Fan speed 4.
• The ventilation mode is “Auto Ventilation Mode”.

■ Display and Function button (PZ-62DR-E)

■ LOSSNAY ENERGY RECOVERY VENTILATE setting

Both fresh air supply and return air pass through the energy recovery cores. Energy recovery ventilation makes the fresh air temperature close to the indoor temperature in the winter and the summer season.

■BY-PASS VENTILATE setting
The fresh air passes through the Lossnay cores and the return room air is exhausted direct. Lossnay By-pass ventilate is normally operated during the spring/autumn season.

■ AUTOMATIC VENTILATION setting

The automatic ventilation mode automatically provides the correct ventilation for the conditions in the room. The following shows the effect “Bypass” ventilation will have under various conditions.

1. Reduces cooling load
   If the air outside is cooler than the air inside the building during the cooling season (such as an early morning or at night), “Bypass”  ventilation will draw in the cooler outside air and reduce the cooling 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 in a business district during the hot summer season.

3. Office equipment room cooling
   During the cold season, fresh air can be drawn in and used as is to cool rooms where the temperature has risen due to the use of office equipment.

CAUTION

• In the case of “By-pass” ventilation, the supply air temperature slightly rises more than the outside air temperature because of the heat effect around the ducts or the unit motors.
• When set to auto ventilation mode while using the pre-heater function, the outdoor temperature may be detected as higher and the mode may change to by-pass mode, even in winter.

Maintenance

Remove all dust and dirt on air filters and Lossnay cores at regular intervals in order to prevent a deterioration in the Lossnay functions.
Guideline: Clean the air filters once a year.
(or when indicated on the remote controller)
Clean the Lossnay cores once two years.
(Clean the Lossnay cores once a year if possible.)
(Frequency should be increased depending on the extent of dirt.)

Removing the parts

1) Maintenance cover

1. Remove the black screw.
2. Slide the fixed piece outside.
3. Open the hinge wire.

Models LGH-F940 and LGH-F1200RVX2-E have 2 fix pieces.

2) Lossnay cores
Take hold of the handle and draw the Lossnay cores out from the main unit.

3) Air filters
After pulling out the Lossnay cores, undo the filter guides, then remove the air filters, located at the bottom left and right of the Lossnay cores, as below.

Models LGH-F300 to F600RVX2-E: 2 cores, 4 filters
Models LGH-F940 and F1200RVX2-E: 4 cores, 8 filters

CAUTION

• Bow filter stoppers a little to remove them from the filter guide.
• Take filter stoppers careful not to break them.

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(40˚C))

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 cores
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 exposed surface areas.

Do NOT wash in water.

CAUTION

• Do not use the hard nozzle of the vacuum cleaner. It may damage the exposed surfaces of the Lossnay cores.
• Under no circumstances should the Lossnay cores be washed in water.

Assembly after maintenance
Bearing in mind the following points, assemble the parts following the sequence for their removal in reverse.

• Arrange the Lossnay core with the air filter side downward.
• The filter has a front and backside. Set the “FRONT” (printed) side of the filter on the outer side.

Note

• If is indicated on the remote controller, turn off the indication, after maintenance.

Specifications

Model name| Input power
(W)| Air volume| Static pressure| Exchange efficiency (%)| Noise (dB)| Weight
---|---|---|---|---|---|---
(CFM)| (CMH)| (W/CFM)| (in W.G)| (Pa)| | Enthalpy| Below the unit
(Ibs)| (kg)
Temperature| Heating| Cooling
LGH-F300RVX2-E| 235| 300| 510| 0.78| 1.0| 250| 66.| 63.0| 50.0| 37| 75| 34
LGH-F380RVX2-E| 340| 380| 646| 0.89| 0.86| 215| 65.0| 61.0| 49.0| 38| 90| 41
LGH-F470RVX2-E| 425| 470| 799| 0.91| 1.0| 250| 69.0| 64.0| 51.0| 40| 110| 50
LGH-F600RVX2-E| 515| 600| 1019| 0.86| 0.86| 215| 67.0| 64.0| 50.0| 41| 123| 56
LGH-F940RVX2-E| 850| 940| 1597| 0.91| 1.0| 250| 69.0| 64.0| 51.0| 43| 225| 102
LGH-F1200RVX2-E| 1030| 1200| 2039| 0.86| 0.86| 215| 67.0| 64.0| 50.0| 43| 251| 114

• The above values apply during Lossnay ventilation when the fan speed is set to Fan speed 4 at the rating pressure loss and 230 V / 60 Hz.
• For the specifications at the other frequency or voltages, contact your dealer.
• The values given in the table for the noise level reflect the levels measured at a position 4.9 feet(1.5 m) immediately below the unit in an anechoic chamber.
• Noise change or increase may occur because of the Bypass-Automatic function or Automatic fan speed change by timer setting and/or other functions.
• Temperature Exchange efficiency (%) are average of summer and winter conditions.
• Mitsubishi Electric measures products according to ISO 16494:2014, therefore P-Q curves are measured by chamber method.
• On-site commissioning measurements by pitot tube method could be as much 20% different from JIS test room conditions. If the measuring point is close to sources of turbulence like bends, contractions, and dampers etc, it is difficult to measure air volume correctly. A straight duct length of more than 10D (D=duct diameter) from the source of turbulence is recommended for correct measurement. On-site measurement should therefore be measured in accordance with BSRIA guidelines (Commissioning Air System.  Application procedures for buildings AG3/89.3(2001))

After-sales servicing

Consult with your dealer about the after-sales services provided for this Lossnay product.

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.

■ Recommended inspection and maintenance
After several years of use, the following might occur. We recommend inspection and maintenance by a professional.

• Entry of dust due to deterioration of filters
• Abnormal noise or vibration due to the motor reaching the end of its service life
• Air leakage due to the Lossnay core reaching the end of its service life

The following are consumables: Motor / Supply air filter / Exhaust air filter / Lossnay core / Circuit board / Thermistor

■ Repair costs include the technical fees, cost of parts, (and business trip charges), etc.

Attentive inspection

| Inspect your unit of good service!
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Have you noticed?| ● Fan does not run when the unit is turned on.
● Abnormal noises or vibrations while the unit is running.
● Retarded or irregular rotations.
(Motors are component that requires maintenance.)
● Burnt odor.
● Corroded or damaged installation section.| ▶Stop running.| Turn off the unit. Then, contact your dealer to prevention of failure or hazard. The dealer should appraise the possible cost.

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

876H66001

Documents / Resources

| MITSUBISHI ELECTRIC LGH-F300RVX2-E Lossnay Energy Recovery Ventilator [pdf] Instruction Manual
LGH-F300RVX2-E, LGH-F380RVX2-E, LGH-F470RVX2-E, LGH-F600RVX2-E, LGH- F940RVX2-E, LGH-F1200RVX2-E, LGH-F300RVX2-E Lossnay Energy Recovery Ventilator, LGH-F300RVX2-E, Lossnay Energy Recovery Ventilator, Energy Recovery Ventilator, Recovery Ventilator, Ventilator
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| MITSUBISHI ELECTRIC LGH-F300RVX2-E Lossnay Energy Recovery Ventilator [pdf] Instruction Manual
LGH-F300RVX2-E Lossnay Energy Recovery Ventilator, LGH-F300RVX2-E, Lossnay Energy Recovery Ventilator, Energy Recovery Ventilator, Recovery Ventilator, Ventilator

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