Daikin RZASG71M2V1B, Installation Manual

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4 Installation
Installation manual
12
RZASG71~Y1
Sky Air Advance-series
4P485928-1 – 2017.04
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.
4.4.3 To determine the additional refrigerant
amount
To determine if adding additional refrigerant is necessary
If Then
(L1+L2+L3+L4+L5+L6+L7)≤
30 m (chargeless length) You do not have to add
additional refrigerant.
(L1+L2+L3+L4+L5+L6+L7)>
30 m (chargeless length) You must add additional
refrigerant.
For future servicing, encircle the
selected amount in the tables
below.
INFORMATION
Piping length is the largest one way length of liquid piping.
To determine the additional refrigerant amount (R in kg) (in
case of pair)
L1 (m)
L1: 30~40 m 40~50 m
R: 0.35 kg 0.7 kg
To determine the additional refrigerant amount (R in kg) (in
case of twin, triple and double twin)
1 Determine R1 and R2.
If Then
G1>30 m Use the table below to determine
R1
G1≤30 m
(and G1+G2>30 m)
R1=0.0 kg.
Use the table below to determine
R2.
Length (total length of liquid piping−30 m)
0~10 m 10~20 m 20~30 m 30~40 m 40~45 m
R1: 0.35 kg 0.7 kg 1.05 kg
(a)
1.4 kg
(a)
R2: 0.2 kg 0.4 kg 0.6 kg 0.8 kg
(a)
1 kg
(b)
(a) Only for RZASG100~140.
(b) Only for R125.
2 Determine the additional refrigerant amount: R=R1+R2.
Examples
Layout Additional refrigerant amount (R)
L2=7 m
(Ø6.4 mm)
L3=5 m
(Ø6.4 mm)
L1=35 m (Ø9.5 mm)
RZASG100
Case: Twin, standard liquid pipe size
1 G1 Total Ø9.5 => G1=35 m
G2 Total Ø6.4 => G2=7+5=12 m
2 Case: G1>30 m
R1 Length=G1−30 m=5 m
=> R1=0.35 kg
R2 Length=G2=12 m
=> R2=0.4 kg
3 R R=R1+R2=0.35+0.4=0.75 kg
L2=15 m
(Ø6.4 mm)
L3=12 m
(Ø6.4 mm)
L4=17 m
(Ø6.4 mm)
L1=5 m (Ø9.5 mm)
RZASG125
Case: Triple, standard liquid pipe size
1 G1 Total Ø9.5 => G1=5 m
G2 Total Ø6.4 => G2=15+12+17=44 m
2 Case: G1≤30 m (and G1+G2>30 m)
R1 R1=0.0 kg
R2 Length=G1+G2−30 m =
5+44−30=19 m
=> R2=0.4 kg
3 R R=R1+R2=0.0+0.4=0.4 kg
4.4.4 To determine the complete recharge
amount
To determine the complete recharge amount (kg)
Model Length
(a)
5~30 m 30~40 m 40~50 m
RZASG71 2.45 kg 2.8 kg 3.15 kg
RZASG100-125 2.6 kg 2.95 kg 3.3 kg
RZASG140 2.9 kg 3.25 kg 3.6 kg
(a) Length=L1 (pair); L1+L2 (twin, triple); L1+L2+L4 (double
twin)
4.4.5 Charging refrigerant: Setup
See "4.3.1 Checking refrigerant piping: Setup" on page 10 .
4.4.6 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 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.
4.4.7 To activate/deactivate the vacuum mode
field setting
Description