Daikin 5MXS90E3V3B2 Kurulum Kılavuzu - Sayfa 9
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Charging refrigerant
This outdoor unit is factory charged.
In case re-charge is required, refer to the nameplate of the unit. The
nameplate states the type of refrigerant and necessary amount.
Precautions when adding R410A
Be sure to charge the specified amount of refrigerant in liquid state to
the liquid pipe.
Since this refrigerant is a mixed refrigerant, adding it in gas form may
cause the refrigerant composition to change, preventing normal
operation.
Before charging, check whether the refrigerant cylinder is
equipped with a siphon tube or not.
Charge the liquid
refrigerant with the cylinder
in upright position.
Be sure to use tools exclusively for R410A to ensure required
pressure resistance and to prevent foreign materials from mixing
into the system.
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
(1)
GWP
value:
1975
(1)
GWP = global warming potential
Please fill in with indelible ink,
the factory refrigerant charge of the product,
the additional refrigerant amount charged in the field and
+the total refrigerant charge
on the fluorinated greenhouse gases label supplied with the product.
The filled out label must be adhered on the inside of the product and
in the proximity of the product charging port (e.g. on the inside of the
service cover).
6
5
NOTE
National implementation of EU regulation on certain
fluorinated greenhouse gases may require to provide
the appropriate official national language on the unit.
Therefore
an
greenhouse gases label is supplied with the unit.
Sticking instructions are illustrated on the backside of
that label.
Charge the liquid
refrigerant with the cylinder
in up-side-down position.
1
factory refrigerant charge
4
of the product:
see unit name plate
1
additional refrigerant
2
amount charged in the
2
field
3
total refrigerant charge
3
Contains fluorinated
greenhouse gases
4
covered by the Kyoto
Protocol
5
outdoor unit
refrigerant cylinder and
6
manifold for charging
additional
multilingual
fluorinated
Charging additional refrigerant
When performing service on the unit requiring the
refrigerant system to be opened, refrigerant must be
evacuated according to local regulations.
If the total length of piping for all rooms exceeds the figure listed
below, additionally charge with 20 g of refrigerant (R410A) for each
additional meter of piping.
Total length of piping for all rooms
Determine the weight of refrigerant to be charged additionally and fill
in the amount in the service sticker on the rear side of the service
cover.
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.
Refrigerant piping work
Cautions on pipe handling
Protect the open end of the pipe against dust and moisture.
All pipe bends should be as gentle as possible. Use a pipe
bender for bending.
Bending radius should be 30 to 40 mm or larger.
Selection of copper and heat insulation materials
When using commercial copper pipes and fittings, observe the
following:
Insulation material: polyethylene foam
Heat transfer rate: 0.041 to 0.052 W/mK (0.035 to 0.045 kcal/
mh°C)
Refrigerant gas pipe's surface temperature reaches 110°C max.
Choose heat insulation materials that will withstand this
temperature.
Be sure to insulate both the gas and liquid piping and to provide
insulation dimensions as below.
Pipe size
Thickness
O.D. (mm)
(mm)
6.4
9.5
0.8
12.7
15.9
1.0
1
Gas pipe
2
Inter-unit wiring
3
Liquid pipe
4
Liquid pipe insulation
5
Drain hose
6
Finishing tape
7
Gas pipe insulation
Use separate thermal insulation pipes for gas and liquid
refrigerant pipes.
4MXS80
5MXS90
30 m
Pipe insulation
Thickness
I.D. (mm)
(mm)
8-10
≥10
12-15
≥13
16-20
2
1
3
7
4
6
5
Installation manual
6