Daikin RZASG71M2V1B, Installation Manual

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