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4
Detach the maintenance cover (for the
humidification element)
Loosen the six screws that fasten the maintenance
cover, then detach it.
◆
Cleaning the strainer (filter) (VNK
type only)
1
Pull the heat insulator of strainer and turn it
upward.
2
Turn the strainer cap counterclockwise to
detach.
3
Clean the filter with water.
4
Re-attach the strainer cap.
◆
Detaching the humidification
element (VNK type only)
Remove the spacer
1
Pull out the spacer by taking the hold.
Detach the water supply tube from the
humidification element
1
Pinch the tabs of the hose band of the water
supply tube attached to the front
humidification element to displace, then
detach the water supply tube.
NOTE
• Do not detach the water supply tube from the reducing
valve.
• Detach the water supply tube and point it toward the
drain pan inside the unit so that water falls into the
drain pan.
Maintenance cover (for the
humidification element)
Screws
Detach
Heat insulator of strainer
Strainer
Filter
Strainer cap
Spacer
Humidification element
Hose band
Water supply
tube
Detach the humidification element (VNK
type only)
1
Pull the front humidification element to
detach.
2
(MMD-VNK802 / MMD-VNK1002) Pinch the
tabs of the hose band of the water supply
tube attached to the back humidification
element, then detach the tube.
3
(MMD-VNK802 / MMD-VNK1002) Pull the
back humidification element to detach.
NOTE
• Drain water remaining in the humidification element
into the drain pan.
• Do not bend, fold, or pull the water supply tube.
Washing the humidification element (VNK
type only)
Wash away dust and dirt from the humidification
element by putting the element in a bucket of water.
Move the element in the bucket up and down to wash.
NOTE
• Do not use a scrubbing brush.
• Do not water the humidification element with a hose;
otherwise, the element may be damaged.
• Do not use hot water of 40 °C or hotter. Do not use any
detergent.
Attaching the humidification element
(VNK type only)
• Attach the humidification element in the reverse
order to detach it.
• Attach the water supply tube securely and ensure
that there is no water leakage.
Cleaning the drain pan (All type)
Check whether there is dust and dirt in the drain pan
and drain outlet. Clean up the drain pan and drain
outlet when they are clogged.
Checking after servicing (VNK type only)
1
Open the service valve as necessary.
2
In winter (the season for using the
humidifier), check whether the antifreeze
heater is turned on.
3
Perform a test run and ensure that there is
no water leakage.
NOTE
When the humidifier is not used, drain off water from the
cistern tank and water supply pipe.
Model name
Quantity of the
humidification element
MMD-VNK502HEX1E
1
MMD-VNK802HEX1E
2
MMD-VNK1002HEX1E
MMD-VNK1002HEX1E2
2
Humidification
element
Scrubbing brush
Hose
Drain outlet
Drain pan
155-EN
156-EN
+00EH99887601-2_01EN.book Page 78 Thursday, September 15, 2016 5:23 PM
