Charging Refrigerant; To Determine The Additional Refrigerant Amount; To Determine The Complete Recharge Amount; Charging Refrigerant: Setup - Daikin RZQG71L8Y1L Installation Manual

4.4

Charging refrigerant

4.4.1 To determine the additional refrigerant
amount
To determine if adding additional refrigerant is necessary
If
L1 ≤ chargeless length
L1 (m)
Chargeless length=
▪ 10 m (size‑down)
▪ 30 m (standard)
▪ 15 m (size‑up)
L1 > chargeless length
INFORMATION
Piping length is the largest one way length of liquid piping.
To determine the additional refrigerant amount (R in kg)
L1 (standard): 30~40 m 40~50 m 50~60 m
L1 (size-up): 15~20 m 20~25 m 25~30 m
R: 0.5 kg
(a) Only for RZQG100~140.
4.4.2 To determine the complete recharge
amount
When piping length is <5 m, a complete recharge of the unit is
required.
To determine the complete recharge amount (kg) (in case of
standard liquid pipe size)
Model
3~10 10~20 20~30 30~40 40~50 50~60 60~75
RZQG71 1.9 2.4
RZQG100~140 3.0 3.5
To determine the complete recharge amount (kg) (in case of
size‑up liquid pipe size)
Model
3~5 5~10 10~15 15~20 20~25 25~30 30~35
RZQG71 1.9 2.4
RZQG100~140 3.0 3.5
To determine the complete recharge amount (kg) (in case of
size‑down liquid pipe size)
Model
RZQG71
RZQG100~140
RZQG71L9V1L + RZQG71~125L8Y1L + RZQG140L7Y1L
Split system air conditioners
4P473073-1 – 2017.03
Then
You do not have to add
additional refrigerant.
You must add additional
refrigerant.
For future servicing, encircle the
selected amount in the tables
below.
L1 (m)
(a) (a)
60~75 m
(a) (a)
30~35 m
1.0 kg 1.5 kg 2.0 kg
L1 (m)
2.9 3.4 3.9 — —
4.0 4.5 5.0 5.5 6.0
L1 (m)
2.9 3.4 3.9 — —
4.0 4.5 5.0 5.5 6.0
L1 (m)
3~10
1.9
3.0
4.4.3

Charging refrigerant: Setup

See "4.3.1 Checking refrigerant piping: Setup" on
4.4.4

To charge refrigerant

WARNING
▪ Only use R410A as refrigerant. Other substances may
cause explosions and accidents.
▪ R410A contains fluorinated greenhouse gases. Its
global warming potential (GWP) value is 2087.5. 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 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.
4.4.5 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 Greenhouse gas emissions of the total refrigerant charge
expressed as tonnes CO
f GWP = Global warming potential
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO -equivalent) is used to determine the maintenance
2
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.
4 Installation
page 6.
a
kg b
kg c
d
kg
e
tCO eq
2
-equivalent
2
Installation manual
7