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English
8
5.
Refilling the refrigerant
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not. (It should have something like “liquid filling siphon
attached” displayed on it.)
2) Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
6.
Charging with refrigerant
1) If the total length of piping for all rooms exceeds the figure listed below, additionally charge with
20g
of refrigerant (R410A)
for each additional meter of piping.
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For cooling only
• Cooling only models (4MKS75) are chargeless. There is no need to charge with refrigerant.
CAUTION
Even though the stop valve is fully closed, the refrigerant may slowly leak out; do not leave the flare nut removed for a long
period of time.
Outdoor capacity class
4MXS68, 3MXS68
Total length of piping for all rooms
30m
Filling a cylinder with an attached siphon
Stand the cylinder upright when filling.
There is a siphon pipe inside, so the
cylinder need not be upside-down to
fill with liquid.
Filling other cylinders
Turn the cylinder upside-down
when filling.
3
5
6
2
1
4
Please fill in with indelible ink,
n
1
the factory refrigerant charge of the product,
n
2
the additional refrigerant amount charged in the field and
n
1 + 2
the total refrigerant charge
on the refrigerant charge label supplied with the product.
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases covered by the Kyoto Protocol.
Do not vent gases into the atmosphere.
Refrigerant type:
R410A
GWP
(1)
value:
1975
(1)
GWP = global warming potential
1
factory refrigerant charge of the product: see unit name plate
2
additional refrigerant amount charged in the field
(Refer to the above information for the quantity of refrigerant
replenishment.)
3
total refrigerant charge
4
Contains fluorinated greenhouse gases covered by the Kyoto Protocol
5
outdoor unit
6
refrigerant cylinder and manifold for charging
The filled out label must be adhered in the proximity of the product charging port (e.g. onto the inside of the stop valve
cover).
01_EN_3P192068-1D.fm Page 8 Tuesday, August 28, 2007 7:12 PM
