Daikin RZAG140L7V1B [18/40] Installation
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Daikin RZAG140L7V1B [18/40] Installation

Daikin RZAG140L7V1B [18/40] Installation
6 Installation
Installer reference guide
18
RZAG71~140L7V1B
Split system air conditioners
4P418663-1 – 2016.02
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 from which you purchased
the unit.
Do not use the unit until a service person confirms that the
portion from which the refrigerant leaked is repaired.
6.6.3 Precautions when charging refrigerant
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
6.6.4 To determine the additional refrigerant
amount
To determine if adding additional refrigerant is necessary
If Then
L1≤30m (chargeless length) You do not have to add
additional refrigerant.
L1>30m You must add additional
refrigerant.
For future servicing, encircle the
selected amount in the table
below.
INFORMATION
Piping length is the one way length of liquid piping.
To determine the additional refrigerant amount
(additional refrigerant amount in kg)
RZAG
L1 (m)
≤30m ≤40m ≤50m ≤55m ≤60m ≤75m ≤85m
71 0.00 0.35 0.70 0.90 —
100~140 0.00 0.35 0.70 1.05 1.40 1.90
6.6.5 To determine the complete recharge
amount
(complete recharge amount in kg)
RZAG
L1 (m)
≤30m ≤40m ≤50m ≤55m ≤60m ≤75m ≤85m
71 2.60 2.95 3.30 3.50 —
100~140 3.40 3.75 4.10 4.45 4.80 5.30
6.6.6 Charging refrigerant: Setup
See "6.5.3Checking refrigerant piping: Setup"on page16.
6.6.7 To charge 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.
CAUTION
To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
Prerequisite: Before charging refrigerant, make sure the refrigerant
piping is connected and checked (leak test and vacuum drying).
1 Connect the refrigerant cylinder to both the service port of the
gas stop valve and the service port of the liquid stop valve.
2 Charge the additional refrigerant amount.
3 Open the stop valves.
If pump down is needed in case of dismantling or relocating the
system, see "11.3To pump down"on page24 for more details.
6.6.8 To fix the fluorinated greenhouse gases
label
1 Fill in the label as follows:
b
Contains fluorinated greenhouse gases
2
1
1
1
2
2
kg
tCO
2
eq
GWP × kg
1000
=
=
+
kg
=
kg
=
GWP: XXX
RXXX
a
f
c
d
e
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 Greenhouse gas emissions of the total refrigerant charge
expressed as tonnes CO
2
-equivalent
f GWP = Global warming potential
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO
2
-equivalent) is used to determine the maintenance
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
2 Fix the label on the inside of the outdoor unit. There is a
dedicated place for it on the wiring diagram label.

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