MITSUBISHI ELECTRIC VL-220CZGV-E Lossnay Heat Recovery Ventilator Instruction Manual
- June 12, 2024
- Mitsubishi Electric
Table of Contents
LOSSNAY HEAT RECOVERY VENTILATOR
(RESIDENTIAL USE)
MODEL:
VL-220CZGV-E
Instruction Manual
The following signs indicate that death or serious injury may be caused by failure to heed the precautions described below.
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Incorrect handling could cause serious injury or death
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| Do not turn the unit on or off when flammable gas has leaked. It could
catch fire or cause explosion with sparks released from electric contractor.
Open windows to ventilate.
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| Do not modify or disassemble.
It could cause fire, electric shock or injury.
| Do not apply water to the unit and remote controller.
Electrical shock can result.
| 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.
| Do not operate with wet hands.
Electrical shock can result.
| 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, water leakage 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 touch the product for at least 5 minutes after the power is shut
off.
Electrical shock can result.
|
Incorrect handling could cause injury or damage to property or household
effects
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| 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.
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Do not operate with the “BY-PASS” when heating the room in winter.
Condensed water may drip from the unit and wet the surface of ceiling.
Do not use at a place where exposed to high temperatures (40˚C or higher),
naked flames, or in environment with heavy 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.
| 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 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.
Do not use any detergent for maintenance and cleaning the unit. It may
cause the damage of the drain pan.
It could cause water leakage.
When outdoor temperature becomes lower than 0˚C, the supply fan starts
intermittent operation for defrosting
operation.
0˚C to -5˚C : Intermittent operation 10min OFF, 30min ON.
-5˚C or less : Intermittent operation 55 min OFF, 5 min ON.
Exhaust fan changes to fan speed 4 during supply fan stopping at 0 to
-5˚C, or all condition at less than -5˚C.
Take precautions when using the product in a quiet location.
Rather than EU countries:
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 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. EU countries:
This appliance can be used by children aged from 8 years and above and
persons with reduced physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
Requests on Use
- When this product ventilates, it takes in cold air from the outside in winter. For this reason, when the outside air temperature drops, moisture in the air around the product condensates, and water drops sometimes adhere to the product or drop. This, however, is not a malfunction. Wipe off any water droplets.
- When outside air temperatures are low and operation of the product is stopped, operation of the ventilator or pressure of the outside wind might cause outside air to flow in from the product, which may result in dew condensation forming on the product and other parts. This is not a malfunction. Wipe off any water droplets.
- When a lot of humidity is generated from building materials at newly built houses, dew condensation may form on the product and other parts. This is not a malfunction. Wipe off any water droplets.
- When a strongly fragrant scent, etc. is used in toilets, bath rooms and wash basins, or when cigarette or other smoke is discharged, odor is sometimes sense from the air vent.
- Operating noise may be a cause of concern directly underneath the product. – When ventilating a bathroom, operate the product for 24 hours.
Features
What is the LOSSNAY HEAT RECOVERY VENTILATOR…?
- Effective ventilation routes can be achieved in the entire house by the supply air vent and the exhaust vent being installed at locations away from each other depending on the duct connection method.
- Built-in filters reduce the influx of dust, pollen, etc, in outside air before the air is supplied to rooms.
During heat exchanger operation
Dirty air from inside the room is discharged (=exhaust), and clean air from the outside is taken into the room (=air supply). During this time, air is discharged and taken in through the Lossnay core (heat exchanger). As a result, air is ventilated while reusing (heat collection) the warmth or coolness of the room which is discarded during ventilation.
- When air conditioning is used in summer and winter, heat exchange ventilation reduces the load placed on air conditioning to ensure energy savings.
During “By-pass” operation
When exhaust and air supply are performed, air is supplied to the room without any change in the outside air temperature due to exhaust being performed without passing through the Lossnay core.
- This function can be used only when the optional motorized damper (P-133DUE-E) is used.
- In spring and fall, and summer nights, for example, the cool air of the outside is taken in.
Preparations Before Use
- Receive an explanation about operation procedures and the correct method of use to ensure safe operation. Make sure that trial operation and operation checks described in the Installation Manual have been carried out.
- Do not stop operation except in the following instances. (Resume operation after the Lossnay unit has been temporarily stopped.)
- When there is heavy snow, strong winds or heavy rain such as snowstorms or typhoons
- When there is thick fog
- During cleaning and maintenance
- When a lot of humidity is generated from building materials at newly built houses, dew condensation may form on the product and other parts. So, switch the operation mode to temporarily stop operation, and open the windows.
- Use the following procedure to check the positions and operation methods. Inspection opening … It is required for maintenance on the product. This product is installed in house attics. So, maintenance is performed in the attic.
– If there is no inspection opening for maintenance or you find the inspection opening and product position are out of their designated dimensions after checking the layout drawing for the inspection opening given in the Installation Manual, contact your dealer or electrical contractor.
Grills………….. They are required on the supply air and exhaust sides of the Lossnay unit. To reduce the frequency of cleaning (Example) the filters on the Lossnay unit, we recommend using a filter for taking up dust in the room in the exhaust grill.
Remote controller…lt is required for starting and stopping operation of the Lossnay unit and for switching the fan speed.
Note:
- The Lossnay unit is not an air-conditioner.
- We recommend local ventilation for discharge cigarette smoke, etc.
- We recommend installing beds away from the supply air vent. (During sleep, you may be bothered by the operating sound of the Lossnay unit or feel cold air.)
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 (MELANS) )
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)
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Display and Function button (PZ-62DR-E)
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LOSSNAY HEAT RECOVERY VENTILATION setting
Both fresh air supply and return air pass through the Lossnay cores.
Heat recovery ventilation makes the fresh air temperature close to the indoor temperature in the winter and the summer season.
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BY-PASS VENTILATION setting
The fresh air passes through the Lossnay cores and the return room air is exhausted directly. By-pass ventilation is normally operated during the spring/autumn season.
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AUTOMATIC VENTILATION setting
The automatic ventilation mode automatically provides the correct ventilation for the conditions in the room. The following shows the effect “By-pass” ventilation will have under various conditions.
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 cooling load on the system.
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.
Office equipment room cooling
During 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.
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 are indicated on the remote
controller)
Clean the Lossnay cores if they are dirty.
Clean the drain pan and Backflow stoppers once a year. (Frequency should be
increased depending on their dirtiness.)
WARNING
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Make sure the power supply isolator is turned off before starting maintenance.
It could cause electric shock or injury if it is turned on. -
Do not touch the product for at least 5 minutes after the power is shut off. Electrical shock can result
CAUTION
-
Put on gloves during maintenance.
It could cause injury. -
Securely install parts after maintenance.
It could cause injury if parts fall.
Removing the parts
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1. **Maintenance cover for filters**Loosen four screws on the maintenance cover for filters
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Air filters
Draw the filters out from the unit.
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Maintenance cover for the other parts
Remove it in the same way as maintenance cover for filters. Maintenance cover for the other parts have also structure of keyhole and fall protection screws
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Inner cover and motor cable
1. Pull out the upper part of the inner cover frontward and remove it in the direction of the arrow in below picture.
2. Open the snap-in cable clamp and take out the motor cable from it.
CAUTION
In case of pulling out inner cover forcibly not following the directions
above, the styrol could be broken.
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1. **Lossnay cores** Hold the handle and draw the Lossnay cores out from the unit. When pulling out the Lossnay cores, be sure the motor cable not to be hooked. Otherwise, it might damage the motor, PCB and Lossnay cores.
CAUTION
Do not forcibly pull out the Lossnay cores while the motor lead is
hooked. The lead may be disconnected.
Cleaning the parts
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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 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 -
Lossnay cores
1. Use a vacuum cleaner to suck up the dust and dirt on the exposed surfaces of the Lossnay cores.
2. Put the Lossnay core in a suitable vessel (e. g. a small tub or the shower tray) and rinse the Lossnay core with clear water from all sides.
3. Carefully clean the air inlets and housing thoroughly with a broad soft brush.
4. Rinse the Lossnay core from all sides thoroughly with clear water.
5. Lift the Lossnay core from the vessel and remove the remaining water inside the Lossnay core by rotating the Lossnay core repeatedly.
6. Dry the Lossnay core with a dry cloth and put it back into the ventilation unit. Operate the unit at least one day for drying inside the core.
CAUTION
• Do not use the hard nozzle of the vacuum cleaner. It may damage the exposed surfaces of the Lossnay cores.
• Do not wash with detergent or disinfect with solution. It may damage the Lossnay cores. -
Drain pan
1. Refer to 4.1 Removing the parts, and remove the air filters and Lossnay cores.
2. Remove dirt on the drain pan, and water and dust adhered around the drain discharge holes with a soft cloth.
CAUTION
• To prevent the materials from deteriorating, do not use paint thinner, benzene, toluene and other solvents, detergents, or nylon scrubbing brushes for cleaning.
• When oil or the like is adhering, wash it off with lots of water. If the drain pan is particularly dirty, wash it with warm water (40˚C or less).
• When wiping the drain pan for cleaning, do not apply load to the parts other than the core rail part. If a load is applied to the drain pan, it can be damaged, resulting in water leakage.
• After cleaning, do not leave anything including cleaning clothes or tools on the drain pan. -
Backflow stopper
1. Refer to 4.1 Removing the parts, and remove the air filters and Lossnay cores.
2. After cleaning the drain pan, remove dirt accumulated in the backflow stoppers with a soft cloth or the like. Besides that, remove dust if it clogged the backflow stoppers.
3. To
remove clogging of the backflow stoppers, insert a cotton swab or the like
into the drain discharge holes. From the side of the drain catch basin, check
that the cotton swab is passing through the backflow stoppers
⚠ CAUTION
- To prevent the materials from deteriorating, do not use paint thinner, benzene, toluene and other solvents, detergents, or nylon scrubbing brushes for cleaning.
- Pay attention not to damage the backflow stoppers and drain catch basin with the cotton swab. Besides that, if the cotton swab is short, it can be dropped into the drain discharge holes, and it can not be taken out from there.
- After cleaning, pour approximately 500 ml of water into both the drain discharge holes to check that water can be drained properly. When pouring water, pay attention not to splash water inside the product, and be sure to wipe off all puddles after the work.
- After cleaning, do not leave anything including cleaning clothes or tools on the drain pan.
- If the drain discharge holes are still clogged after the cleaning, the backflow stoppers must be replaced. If the product is continuously used, it may cause defective water drainage, resulting in water leakage. Be sure to contact the dealer from whom you purchased the product.
Assembly after maintenance
Bearing in mind the above points, assemble the parts following the sequence
for their removal in reverse.Specifications
**** Model name| Input power (W)| Air volume| Static pressure (Pa)|
Temperature exchange efficiency (%)| Noise (dB)
1.5 m below the unit| Weight
(kg)
---|---|---|---|---|---|---
(m3 /h)| (L/S)
LGH-50RVS-E| 190| 500| 139| 150| 87| 33| 55
LGH-80RVS-E| 325| 800| 222| 170| 82| 36| 63
LGH-100RVS-E| 445| 1000| 278| 190| 82| 37| 73
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 / 50 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 1.5 meters directly under 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 based on winter condition.
- 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 ISO 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 more than 10D (D=duct diameter) from the source of turbulence is recommended for correct measurement. On-site measurement should therefore be performed in accordance with BSRIA guideline (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.
- Water leakage due to clogging of drain pipe
- 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
- Backflow stopper
- Circuit board
- Thermistor
Repair costs include technical fee, cost of parts, (and business trip charges), etc.
Manufactured by: MITSUBISHI ELECTRIC CORPORATION
TOKYO BLDG. 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO, 100-8310 JAPAN
Importer in EU: MITSUBISHI ELECTRIC EUROPE B.V.
HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX, UB8 1QQ, U.K.