1
English
With DX coil & Humidifier
With DX coil
VKM50GAMV1
VKM50GAV1
VKM80GAMV1
VKM80GAV1
VKM100GAMV1
VKM100GAV1
Total Heat Exchanger
HRV (Heat Reclaim Ventilation) -with DX Coil-
Operation
manual
CONTENTS
ILLUSTRATIONS................................................... [1][2][3]
1 SAFETY CAUTIONS ....................................................... 1
2 WHAT TO DO BEFORE OPERATION............................. 3
3 OPERATION PROCEDURE ............................................ 7
4 MAINTENANCE (for a qualified service person only) ... 11
5 TROUBLE SHOOTING.................................................. 12
Important information regarding the refrig-
erant used
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol.
Refrigerant type: R410A
GWP
(1)
value:
1975
(1)
GWP = global warming potential
Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact your
local dealer for more information.
1
SAFETY CAUTIONS
Read the following cautions carefully and use your equipment
properly.
This unit comes under the term “appliances not accessible to
the genetic public.”
There are two kinds of safety cautions and tips listed here as fol-
lows:
WARNING
............... Improper handling can lead to such
serious consequences as death or
severe injury.
CAUTION
................ Improper handling can lead to injury or
damage. It could also have serious
consequences under certain condi-
tions.
NOTE
• These instructions will ensure proper use of the equipment.
Be sure to follow these important safety cautions.
Keep these warning sheets handy so that you can refer to
them if needed.
Also, if this equipment is transferred to a new user, make sure
to hand over this user’s manual to the new user.
WARNING (During Operation)
• When the unit is in abnormal conditions (smell of some-
thing burning, etc.), cut off the power, and contact your
dealer.
Continued operation under such circumstances may result
in a failure, electric shock, and fire.
• It is not good for your health to expose your body to the
air flow for a long time.
• Do not operate the unit with a wet hand.
An electric shock may result.
• Open the windows and ventilate the room if flammable
gas is leaked.
Insufficient ventilation when the unit is turned on or off may
cause an explosion from sparks at the electrical connection.
• Do not wash the HRV unit with water.
Electric shock or fire may result. (Not including air filters,
etc.)
• Be sure to stop the unit and turn off the power when
cleaning or inspecting it.
As the fan is rotating at high speed, it will cause injury.
• Never inspect or service the unit by yourself.
Ask a qualified service person to perform this work. (The
qualified service person)
• Keep all flames away if the refrigerant leaks.
The refrigerant in the air conditioner is safe and normally
does not leak. If the refrigerant leaks inside the room, the
contact with a fire of a burner, a heater or a cooker may
result in a harmful gas. Extinguish all flames from burning
appliances (such as stoves, heaters, etc.) ventilate the
room, and contact your dealer. Do not use the air condi-
tioner until when a service person confirms to finish repair-
ing the portion where the refrigerant leaks.
• Consult the dealer if the air conditioner submerges
owing to a natural disaster, such as a flood or typhoon.
Do not operate the air conditioner in that case, or otherwise
a malfunction, electric shock, or fire may result.
CAUTION (During Operation)
• Do not use the HRV unit for other purposes.
In order to avoid any quality deterioration, do not use the
unit for cooling precision instruments, food, plants, animals
or works of art.
• Do not use burning appliances directly in the path of the
air from the unit.
Incomplete combustion of the burning appliances may
occur.
• Never expose little children, plants or animals directly
to the air flow.
Adverse influence to little children, animals and plants may
result.
• Neither place a flammable spray bottle near the HRV
unit or indoor intake and outlet grills nor perform spray-
ing.
Doing so may result in a fire.
• Turn off the power when the unit is not to be used for
long periods of time.
Otherwise, the unit may get hot or catch on fire due to dust
accumulation.
• Do not block the intake or outlet grills.
If the fan does not blow air throughout the entire room, it
may cause oxygen deficiency leading to bad health condi-
tion or long-term health problems.
• Use gloves when cleaning.
Cleaning without gloves may cause injury.
• Do not operate the remote controller with wet hands.
This may cause electric shock.
• Never touch the internal parts of the controller.
An electric shock or a machine trouble may happen. For
checking and adjusting the internal parts, contact your
dealer.
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