Charging Refrigerant; Electrical Installation - Daikin RXJ20A5V1B Installation Manual

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NOTICE
Make sure to open the stop valves after installing the
refrigerant piping and performing vacuum drying. Running
the system with the stop valves closed may break the
compressor.
6

Charging refrigerant

6.1
About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
WARNING
The appliance shall be stored so as to prevent mechanical
damage and in a well-ventilated room without continuously
operating ignition sources (e.g. open flames, an operating
gas appliance, or an operating electric heater). The room
size shall be as specified in the General safety precaution.
WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
WARNING
▪ The refrigerant inside the unit is mildly flammable, but
normally does NOT leak. If the refrigerant leaks in the
room and comes in contact with fire from a burner, a
heater, or a cooker, this may result in fire, or the
formation of a harmful gas.
▪ Turn OFF any combustible heating devices, ventilate
the room, and contact the dealer where you purchased
the unit.
▪ Do NOT use the unit until a service person confirms
that the part from which the refrigerant leaked has been
repaired.
WARNING
NEVER directly touch any accidental leaking refrigerant.
This could result in severe wounds caused by frostbite.
6.2
To determine the additional
refrigerant amount
If the total liquid
piping length is...
≤10 m
Do NOT add additional refrigerant.
>10 m
R=(total length (m) of liquid
piping⁠ – ⁠ 1 0 m)×0.020
R=Additional charge (kg) (rounded in units
of 0.01 kg)
INFORMATION
Piping length is the one-way length of liquid piping.
RXJ20~35A
R32 split series
3P482320-17X – 2021.12
Then...
6.3
To determine the complete
recharge amount
INFORMATION
If a complete recharge is necessary, the total refrigerant
charge is: the factory refrigerant charge (see unit name
plate) + the determined additional amount.
6.4
To charge additional refrigerant
WARNING
▪ Only use R32 as refrigerant. Other substances may
cause explosions and accidents.
▪ R32 contains fluorinated greenhouse gases. Its global
warming potential (GWP) value is 675. Do NOT vent
these gases into the atmosphere.
▪ When charging refrigerant, ALWAYS use protective
gloves and safety glasses.
Prerequisite: Before charging refrigerant, make sure the refrigerant
piping is connected and checked (leak test and vacuum drying).
1 Connect the refrigerant cylinder to the service port.
2 Charge the additional refrigerant amount.
3 Open the gas stop valve.
6.5
To fix the fluorinated greenhouse
gases label
1 Fill in the label as follows:
Contains fluorinated greenhouse gases
RXXX
1
=
f
GWP: XXX
2
=
2
1
+
1
2
=
GWP × kg
=
1000
a
If a multilingual fluorinated greenhouse gases label is
delivered with the unit (see accessories), peel off the
applicable language and stick it on top of a.
b
Factory refrigerant charge: see unit name plate
c
Additional refrigerant amount charged
d
Total refrigerant charge
e
Quantity of fluorinated greenhouse gases of the total
refrigerant charge expressed as tonnes CO
f
GWP = Global warming potential
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
Formula to calculate the quantity in CO
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Use the GWP value mentioned on the refrigerant charge
label.
2 Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
7

Electrical installation

DANGER: RISK OF ELECTROCUTION
6 Charging refrigerant
a
kg
b
kg
c
d
kg
e
tCO
eq
2
equivalent.
2
equivalent.
equivalent
2
Installation manual
9

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R32 split seriesRxj25a5v1bRxj35a5v1b

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