Mitsubishi Electric VL-50S2-E User manual

Eng-1
English
Mitsubishi Lossnay Ventilator
MODELS
VL-50S2-E (pull cord Type)
VL-50ES2-E (wall switch Type)
Operating Instructions For Customer
Please read these instructions thoroughly to ensure safe and proper use. After reading, store the manual
in a handy location for easy access.
Before proceeding with operation, please be sure to read “Safety precautions”, as it will tell you how to
operate the Lossnay ventilator properly and safely.
Do not install the unit yourself. (The safety and performance of customer-installed units is not
guaranteed.)
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or a similarly
TXDOL¿HGSHUVRQVLQRUGHUWRDYRLGDKD]DUG9/62-E only)
- Contact your dealer.
Contents Page
1. Safety precautions............................... 1
2. When using the unit............................. 3
3. Features............................................... 4
4. Names of parts .................................... 
%HIRUH\RXVWDUWWKH/RVVQD\............... 
6. Operation............................................. 6
7. Maintenance ........................................ 7
8. Troubleshooting ................................... 
6SHFL¿FDWLRQV....................................... 11
$IWHUVDOHVVHUYLFLQJ........................... 11
1. Safety precautions
Hazards created by mishandling and their
severity are indicated by the following
markers.
Warning:
This applies to mishandling or misoperation
of the product which could lead to a fatal or
serious injury.
Caution:
This applies to mishandling or misoperation
of the product which will lead to an injury or
damage to your home, household effects, etc.
Warning
-Do not cut, damage or physically
alter the power cord*1 or subject it
to unreasonable bending, pulling,
twisting or bundling.
- You could damage the cord,
UHVXOWLQJLQ¿UHRUHOHFWULFVKRFN
-Do not turn the Lossnay switch ON
RU2))LIWKHUHLVDÀDPPDEOHJDV
leak.
- 6SDUNVIURPHOHFWULFFRQWDFWVFRXOG
cause explosions. Open a window to
ventilate the room.
Prohibited

Eng-2
-Do not use the unit in excessively
hot areas (40°C or more), near
RSHQÀDPHVDUHDVSURQHWRRLO\
smoke, or where it could come in
contact with organic solvents.
- Fire could result.
-Do not disassemble the unit
in ways that require physical
alteration or tools.
- )LUHHOHFWULFVKRFNRULQMXU\FRXOG
result.
-Do not let the unit get wet.
- )LUHRUHOHFWULFVKRFNFRXOGUHVXOW
-Do not insert or remove the power
plug*1 with wet hands.
- (OHFWULFVKRFNFRXOGUHVXOW
-Use at the rated voltage.
- )LUHRUHOHFWULFVKRFNFRXOGUHVXOW
-Check that there is no dust on the
power plug*1.
- $GXVW\SOXJFRXOGFDXVH¿UHIURPD
short circuit.
-Insert the plug*1 completely into
the socket, making sure it is not
loose.
- $ORRVH¿WFRXOGUHVXOWLQHOHFWULF
VKRFNRU¿UH
-Make sure that the outside air
intake opening is positioned so
that it will not take in combustion
gases or other exhaust.
- ,ILQWDNHDLULVQRWIUHVKR[\JHQ
could become depleted in the room.
-Always shut off circuit breakers or
remove the power plug*1 from the
wall outlet during long periods of
disuse.
- Failure to do so could result in
HOHFWULFVKRFNIURPGHWHULRUDWHG
LQVXODWLRQRU¿UHIURPDVKRUWFLUFXLW
-Install the outdoor weather covers
packaged with the unit.
- Rainwater entering the unit could
UHVXOWLQHOHFWULFVKRFN¿UHRULQGRRU
items getting wet.
-Immediately halt use in the event
of malfunction or breakdown.
- Continued use of the Lossnay could
UHVXOWLQVPRNH¿UHHOHFWULFVKRFN
RULQMXU\
3URPSWO\VKXWRIIWKHFLUFXLWEUHDNHU
or remove the power plug*1from the
wall outlet. Then contact the store of
Do NOT
disassemble
Do not expose
to water
No wet hands
You must
follow the
instructions
given.
purchase for inspection and repair.
<Examples of malfunction and
EUHDNGRZQ!
- Blades do not turn when power is
turned on.
- 7KHXQLWPDNHVVWUDQJHQRLVHVRU
vibrates while running.
- Blade rotation is slow or
irregular. (Motors require periodic
maintenance.)
- You smell burning.
- The unit mount is corroded or
damaged.
-Always shut off circuit breakers
or remove the power plug*1 from
the wall outlet before performing
maintenance work.
- (OHFWULFVKRFNDQGEXUQVFRXOG
UHVXOWLISRZHULVÀRZLQJ
Caution
-Do not place combustion
equipment in the direct path of the
air from the unit.
- Incomplete combustion could result
in accidents.
-If using a step-ladder for
maintenance, be sure to place it
on level ground where there is
nothing underfoot.
- ,QMXU\FRXOGUHVXOWIURPIDOOLQJRYHU
-Never attach the unit to the ceiling.
- ,QMXU\FRXOGUHVXOWLIWKHXQLWIDOOV
-Because this product is designed
to be installed at a higher location,
install the product at least 1.8 m
DERYHWKHÀRRU
- Failure to heed this warning may
UHVXOWLQLQMXU\
-A fan rotates inside the unit during
operation. Never stick anything
inside the unit during operation.
- ,QMXU\FRXOGUHVXOW
- Do not use the unit in a bathroom
or other highly humid location.
- (OHFWULFVKRFNRUEUHDNGRZQFRXOG
result.
-Wear gloves when maintaining the
unit.
- Failure to wear gloves could result in
LQMXU\
-After maintenance, reattach parts
securely.
- ,QMXU\FRXOGUHVXOWLIWKHXQLWIDOOV
Prohibited
Do NOT touch
You must
follow the
instructions
given.

Eng-3
-Never remove the power plug*1 by
pulling on the cord. Always grasp
the plug itself.
- &RXOGUHVXOWLQHOHFWULFVKRFNRU
VKRUWVRUFRXOGFDXVH¿UHV
-If the outside air is cold, winds
are strong, snow or rain is falling
KHDYLO\RUWKHUHLVPLVWRU¿QH
snow, turn the Lossnay off and
close the manual shutter.
- :DWHURUVQRZFRXOGLQ¿OWUDWHWKH
Lossnay with the air supply, resulting
in weather damage.
-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.
(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.)
*15HIHUVRQO\WR9/62-E (Lossnay
with plug-in power cord).
2. When using the unit
Ŷ:KHQUXQQLQJLQZLQWHUWKH/RVVQD\
transfers the heat of indoor air to the
cold outdoor air as it brings outside
air in.
This means that when outside air is colder than
DERXW&FRQGHQVDWLRQRUIURVWPD\IRUPRQ
the panel or inside the unit.
Since condensation and frost formation varies
with subtle changes in conditions (indoor humidity,
DLUÀRZDQGWKHOLNHVZLWFKRSHUDWLQJPRGHVRU
temporarily stop the unit as conditions dictate.
When dew condensation has formed on the surface
of the unit, wipe it off.
Using the following outside air temperatures as
a guide, switch the mode to Exhaust only mode.
(Refer to page 6 for details of the mode.)
Outside air temperature
In operation &RUKLJKHU
Exhaust only mode &WR&
Stop &RUORZHU
Ŷ&KHFNWKDWWKHXQLWLVPRXQWHG
properly before using it.
-Is the Lossnay mounted on a wall?
- This Lossnay is designed to be mounted only on
a wall. If mounted on a ceiling, it may drop off.
-Is the special outdoor hood mounted on an
exterior wall?
- Failure to install the hood may allow wind and
rain into the unit, damaging it.
Ŷ2EH\WKHIROORZLQJFDXWLRQVZKHQ
using the Lossnay.
-Do not place objects around the unit.
- 6XFKREMHFWVPD\EORFNDLURXWOHWVRULQWDNH
openings or may prevent servicing.
- They may also prevent you from reaching the
wall outlet (for plug-in models).
-Do not use aerosol sprays (such as insect
sprays, hair sprays or cleaners) directly on
the unit.
- 7KHSDQHOPD\ZDUSZHDNHQRUEHFRPH
damaged.
-Do not obstruct the panel.
- Proper ventilation may be impeded.
-Do not pull the cord diagonally (VL-50S2-E
only).
- The unit will not operate correctly.
At least 3 cm
$WOHDVWFP
Nothing in front
$WOHDVWFP
$WOHDVWFP

Eng-4
-In the following cases, stop the Lossnay and
close its shutter.
- If the outside air is cold, winds are strong, snow
or rain is falling heavily, there is heavy fog, or
¿QHVQRZLVIDOOLQJ:DWHURUVQRZPD\LQ¿OWUDWH
the Lossnay with the air supply, resulting in
weather damage.)
- During cleaning and inspections
(Stop the Lossnay temporarily, resuming
operation later.)
- Do not pull the panel forcefully.
- Doing so could cause the product to fall.
Ŷ0LWVXELVKLUHFRPPHQGVPRXQWLQJWKH
Lossnay away from the bed.
If the unit is too close, you may hear operating
noise or feel cold air blowing while in bed.
Ŷ%XJVVPDOOHUWKDQWKHJUDWHRSHQLQJV
of the outdoor hood may be able to
LQ¿OWUDWHWKHXQLW
Ŷ:KHQZLQGLVVWURQJWKHUHPD\EHD
rattling sound from the shutter. (This is
not a malfunction.)
Ŷ7KHPRWRUDQGWKHDLU¿OWHUUHTXLUH
periodic maintenance (replacement).
Replacement time will vary with frequency of
use.
3. Features
The Lossnay ventilator, from Mitsubishi
Running the Lossnay
The Lossnay moves dirty indoor air outside
(exhausting it) and brings clean air from the
outside in (providing air supply). When it supplies
air, it brings outside air close to room temperature
(functioning as a heat exchanger).
* The Lossnay is not an air-conditioner. It is
a ventilating fan that exchanges heat as it
ventilates.
Since it not only sends indoor air out but also
EULQJVIUHVKDLULQLWZRUNVZHOOLQWLJKWO\VHDOHG
homes.
Since it is a heat exchanger, it provides heating
and cooling at a lower cost than ventilators that
merely exhaust.
%XLOWLQ¿OWHUVUHGXFHWKHDPRXQWRIGXVW
pollen and other particles entering the house in
outside air.
1([KDXVWDLU¿OWHU
2
2XWVLGHDLU¿OWHU
For replacement:
3)2-E
3
2SWLRQ+LJKHI¿FLHQF\
¿OWHU
3+)2-E
To prevent a cold air feeling or dew
condensation forming on the unit in winter,
Exhaust only mode can be used. (Refer to
page 6 for details of the mode.)

Eng-5
4. Names of parts
([KDXVWDLU¿OWHU
+RRN
Operation lamp
Wire (fall prevention)
2XWVLGHDLU¿OWHU
Lossnay Core
(Heat exchanger)
Panel
6KXWWHUNQRE
Pull cord
9/62-E only)
Display
(Remove the provided
protective sheet.)
5. Before you start the Lossnay
1. Preparing to turn the power on
7XUQWKHFLUFXLWEUHDNHURQDWWKHGLVWULEXWLRQERDUG
,QVHUWWKHSRZHUSOXJLQWRWKHZDOORXWOHW9/62-E only)
%UHDNHU
Power plug

Eng-6
6. Operation
Note
-In the following cases, stop the Lossnay
and manually move the shutter knob to the
leftmost position (the closed position) to
close the shutter.
- If the outside air is cold, winds are strong, snow
or rain is falling heavily, there is heavy fog, or
¿QHVQRZLVIDOOLQJ:DWHURUVQRZPD\LQ¿OWUDWH
the Lossnay with the air supply, resulting in
weather damage.)
- During cleaning and inspections
1. Slide the shutter knob to the open
position.
Note
-Make sure that the shutter knob must be
located in the open position, and then
operate the unit.
2. Operation
For VL-50S2-E
6ZLWFKLQJRSHUDWLQJPRGHVDLUÀRZ
Pull the cord to switch from HI to LO to Off.
HI operation LO operation Off
(Operation indicator lights.) (Operation indicator
goes out.)
For VL-50ES2-E
Using the control switches.
* The switches shown above are only an example.
Operations and indicators may vary depending
on the switches installed.
6KXWWHUNQRE
OPEN
position
CLOSE
position
Power switch
(On-Off)
$LUÀRZVZLWFK
(Hi-Lo fan speed)
3. Operation in Exhaust only mode
What is Exhaust only mode?
When the outside air temperature becomes low
LQZLQWHUDQGLQWDNHDLUDLUVXSSO\IHHOVFROG
or there is a concern about dew condensation
on the unit, change the mode to Exhaust only
mode.
By closing the shutter at the air supply side
and half closing the shutter at the exhaust side,
operation with suppressed supply air (cold
outside air) is performed.
,QRUGHUWRSUHYHQWIUHH]LQJRIWKHKHDW
exchanger, if the outside air temperature
EHFRPHV&RUORZHUPDNHVXUHWRRSHUDWH
in Exhaust only mode.
(*For a guide to outside air temperatures, refer
to page 3.)
How to operate Exhaust only mode
$GMXVWWKHVKXWWHUNQREWRWKH([KDXVWRQO\
position.
 0RYHWKHVKXWWHUNQREWRWKH&/26(SRVLWLRQ
and then slowly move to the OPEN position and
stop at the Exhaust only position.
Note
-When Exhaust only mode is no longer
necessary, return the shutter knob to the
OPEN position.
6KXWWHUNQRE
OPEN
position
CLOSE
position
Exhaust only
position

Eng-7
 'RQRWVKDNHWKHVXVSHQGHGSDQHO7KH
wallpaper could be damaged.)
For vertical mounting
$VVKRZQLQWKH¿JXUHKROGWKHWRSDQG
bottom end of the panel and pull toward you.
2) Remove the panel and suspend it.
- When removing the panel (wire) from the main
XQLWKROGWKHKRRNDQGUHPRYHWKHZLUH
 'RQRWVKDNHWKHVXVSHQGHGSDQHO7KH
wallpaper could be damaged.)
5HPRYHWKHH[KDXVWDLU¿OWHU
$VVKRZQLQWKH¿JXUHKROGWKHDLU¿OWHUDQGSXOO
WKHWRSRIWKHDLU¿OWHUWRZDUG\RXWRGHWDFKLW
IURPWKHKRRNLQJSDUWRQWKHWRSWRUHPRYHLW
Panel
Panel
+RRN
Wire
Panel
Wire
+RRN
Panel
([KDXVWDLU¿OWHU
7. Maintenance
5HPRYHDOOGXVWDQGGLUWRQDLU¿OWHUVDQG/RVVQD\
cores at regular intervals in order to prevent a
deterioration in the Lossnay functions.
Guideline:
&OHDQWKHDLU¿OWHUVat least once every six
months
Clean the Lossnay cores once two year.
(Frequency should be increased depending on the
extent of dirt.)
Warning:
-Always shut off circuit breakers or, for the VL-
50S2-E, remove the power plug from the wall
outlet before performing maintenance work.
- (OHFWULFVKRFNDQGEXUQVFRXOGUHVXOWLISRZHULV
ÀRZLQJ
Caution:
-Wear gloves when maintaining the unit.
- )DLOXUHWRZHDUJORYHVFRXOGUHVXOWLQLQMXU\
-If using a step-ladder, be sure to place it
on level ground where there is nothing
underfoot.
- ,QMXU\FRXOGUHVXOWIURPIDOOLQJRYHU
Removing the parts
(1) Turn the power off
1) Turn the Lossnay off.
$OZD\VVKXWRIIFLUFXLWEUHDNHUVRUIRUWKH9/
62-E, remove the power plug from the wall
outlet.
(2) Open the panel.
For horizontal mounting
$VVKRZQLQWKH¿JXUHKROGWKHOHIWDQGULJKW
end of the panel and pull toward you.
2) Remove the panel and suspend it.
- When removing the panel (wire) from the main
XQLWKROGWKHKRRNDQGUHPRYHWKHZLUH
%UHDNHU
Power plug

Eng-8
5HPRYHWKHRXWVLGHDLU¿OWHU
+ROGWKHNQRERIWKHRXWVLGHDLU¿OWHUWRSXOOLW
out.
(5) Remove the Lossnay Core.
Press the prong of the Lossnay Core's handle
and pull the handle toward you to remove the
core.
Cleaning
2XWVLGHDLU¿OWHU
13UHVVWKHWDEDWWZRORFDWLRQVWRRSHQWKH¿OWHU
frame.
25HPRYHWKHRXWVLGHDLU¿OWHU
3 9DFXXPWKHGXVWIURPWKH¿OWHUDQGWKHQ
handwash it in water with a neutral detergent
RULQOXNHZDUPZDWHUXSWR&7KHQGU\
LWWKRURXJKO\WRUHPRYHPRLVWXUHNHRXWWKH
RXWVLGHDLU¿OWHU
2XWVLGHDLU¿OWHU
Lossnay Core
Filter frame
Tab
2XWVLGHDLU¿OWHU
1
2
Press
Vacuum cleaner
2XWVLGHDLU¿OWHU
Replacement:
5HSODFHWKH¿OWHUZLWKVHSDUDWHO\VROGSDUWV
3)2-E) when it has been washed four times.
([KDXVWDLU¿OWHU
2SHQWKHH[KDXVWDLU¿OWHUDVVKRZQLQWKH
¿JXUH
2) Either lightly tap with your hand or remove
dust with a vacuum cleaner.
3) If it is excessively dirty, wipe with a cloth
VRDNHGLQZDWHUDQGWLJKWO\ZUXQJRXW
Note
-Never wash with hot water or do rubbing
wash.
-'RQRWGU\WKH¿OWHUE\GLUHFWO\KROGLQJLWXS
WRDQRSHQÀDPH
-If a separately available high performance
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accordance with the instructions in its
Instruction Manual.
(3) Lossnay Core
Use a vacuum cleaner to remove surface dust.
- Vacuum the surface gently with the vacuum
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Note
-Do not expose the Lossnay Core to water,
chemicals, or volatile solutions.
-Do not wash Lossnay Core with water.
-Do not expose the Lossnay Core close to
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-Do not press wires, screwdrivers or hard
vacuum cleaner nozzles into the surface.
Vacuum
cleaner
Exhaust air
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Open the
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Push sideways to
remove the tab
入れる
Insert
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Fan side
Vacuum cleaner
Lossnay Core

Eng-9
Reassembly and checking after
maintenance
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opposite of the removal procedure.
Caution
- After maintenance, reattach parts securely.
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(1) Mount the Lossnay Core.
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2) Insert the Lossnay Core guide along the rail
of the main unit.
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9.)
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and mount it in the main unit. (Do not confuse
the top and bottom.)
Insert
Fan side
Lossnay Core
Guide
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Rail
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(4) Close the panel.
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unit.
(5) Turn on the circuit breaker or, for
the VL-50S2-E, plug the power plug
into the wall outlet.
(6) Turn the power on.
(7) After reassembly, check the
following.
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- ,VWKHXQLWPDNLQJQRVWUDQJHQRLVHV"
- ,VWKHXQLWEORZLQJDLU"%HVXUHWRFKHFNWKH
XQLWZKLOHLWLVUXQQLQJ0DNHVXUHWKDWWKH
shutter is open.)
Cleaning the panel/main unit
If the panel or main unit becomes dirty, wipe it
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less), then wipe it with a clean cloth to remove
any traces of detergent.
Note
-Use of any of the following solvents in
maintenance may warp, weaken or discolor
Lossnay components.
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chemical wipes, or abrasive-containing
detergents, such as cleansers
-Clean any dust off of the plug. (VL-50S2-E
only)
([KDXVWDLU¿OWHU
Outside air
¿OWHU Filter frame
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Main unit catch
Panel

Eng-10
8. Troubleshooting
Inspect the unit if any of the following problems occurs. If the problem is not listed below, or the problem
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the power plug from the wall outlet, and then contact your dealer.
Model Problem Cause &KHFNWKHIROORZLQJ Page
9/62-E
9/(62-E
Unit does not operate. No power to main unit.
&KHFNWKHSRZHUSOXJ9/62-E only)
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
The unit is louder.
The unit is noisy.
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not attached securely. 5HDWWDFKWKHSDQHORU¿OWHU
7
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¿OWHULVFORJJHG &OHDQWKH¿OWHU
7-8
Less air than normal is
coming from the unit.
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¿OWHULVFORJJHG &OHDQWKH¿OWHU
7-8
The operation lamp is not
bright.
When the operation mode is
changed from HI to LO, the lamp
becomes dim.
This is not a malfunction. —
Small insects get inside. Small particles and insects may
pass through.
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4
No air is coming from the unit.
Not much air is coming
from the unit.
The Lossnay is a heat-exchanging ventilator, so the volume of air will be
lower than with an ordinary fan. This is normal.
—
The shutter is closed. Open the shutter. 6
The panel will not close.
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not mounted correctly. (A component is
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Mounted the component correctly. 7-8
The incoming air feels
cold.
The outside air temperature has
dropped.
Turn the unit off temporarily and close
the shutter, as dictated by the situation.
Operate the unit by setting the shutter
position to Exhaust only mode.

Cold air may enter inside if inside
the room is in negative pressure
for a reason such as that the
range hood fan is operating.
This is not a malfunction.
Use the unit in Exhaust only mode.
6
When operating the
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noise inside.
This sound is the operation sound
of the shutter inside the product. This is not a malfunction.
—
Cold air or wind comes in
more than usual when the
unit is stopped.
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position.
6
The unit is loud. The shutter is closed. Open the shutter. 