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Preparation

Installer reference guide

11

RZAG71~Y1
Sky Air Alpha-series
4P573381-1 – 2019.04

Triple

(a)

L2

L3

L4

H1

H2

L1

Double twin

(a)

H1

H2

L1

L2

L3

L4

L5

L6

L7

(a)

Assume that the longest line in the illustration corresponds
with the actual longest pipe, and the highest unit in the
illustration corresponds with the actual highest unit.

L1

Main piping

L2~L7

Branch piping

H1

Height difference between the highest indoor unit and the
outdoor unit

H2

Height difference between the highest and the lowest
indoor unit
Refrigerant branch kit

Refrigerant piping material

Piping material:

 Phosphoric acid deoxidised seamless copper.

Flare connections:

 Only use annealed material.

Piping temper grade and thickness:

Outer diameter

(Ø)

Temper grade

Thickness (t)

(a)

6.4 mm (1/4")

9.5 mm (3/8")

12.7 mm (1/2")

Annealed (O)

≥0.8 mm

t

Ø

15.9 mm (5/8")

Annealed (O)

≥1.0 mm

19.1 mm (3/4")

Half hard (1/2H)

(a)

Depending on the applicable legislation and the unit's
maximum working pressure (see "PS High" on the unit
name plate), larger piping thickness might be required.

Refrigerant piping diameter

The refrigerant piping diameters must comply with the following:

Piping

Diameter

L1 (pair, twin, triple, double twin) See below.

L2,L3 (twin)

L2~L4 (triple)

L4~L7 (double twin)

Use the same diameters as the
connections (liquid, gas) on the
indoor units.

L2,L3 (double twin)

Liquid piping: Ø9.5 mm

Gas piping: Ø15.9 mm

L1 (pair, twin, triple, double twin):

Model

New

(a)

/

Existing

(b)

L1 liquid

piping

L1 gas piping

RZAG71

Size‑down

Ø6.4 mm

Ø12.7 mm

Standard

Ø9.5 mm

Ø15.9 mm

Size‑up

Ø12.7 mm

RZAG100~140

Size‑down

Ø6.4 mm

Standard

Ø9.5 mm

Ø15.9 mm

Size‑up

Ø12.7 mm

Ø19.1 mm

(a)

When installing 

new piping

, use the same diameters as

the connections on the outdoor units (i.e. 

standard

diameters for liquid and gas piping).

(b)

When reusing 

existing piping

, you may use the 

size‑up

 or

size‑down

 diameters, but then capacity might decrease,

and stricter piping length requirements are applicable.
Assess these limitations in relation to the complete
installation.

Refrigerant piping length and height difference

The piping lengths and height differences must comply with the following requirements:

Requirement

Limit

71

100

125+140

1 Minimum total one‑way piping length

Pair: Limit≤L1

Twin: Limit≤L1+L3

Triple: Limit≤L1+L4

Double twin: Limit≤L1+L3+L7

3 m

2 Maximum total one‑way piping length

Pair: L1≤Limit

Ø size-down

10 m (10 m)

(a)

Ø standard

55 m (75 m)

(a)

85 m (100 m)

(a)

Ø size-up

25 m (35 m)

(a)

35 m (45 m)

(a)

Twin and triple:
L1+L2≤Limit

Double twin:
L1+L2+L4≤Limit

Ø size-down

10 m (15 m)

(a)

Ø standard

55 m (75 m)

(a)

85 m (100 m)

(a)

Ø size-up

25 m (35 m)

(a)

35 m (45 m)

(a)

3 Maximum allowable piping length

Pair: N/A

Twin: L1+L2+L3≤Limit

65 m

85 m

Triple: L1+L2+L3+L4≤Limit

85 m

Double twin: L1+L2+L3+L4+L5+L6+L7≤Limit

85 m

4 Maximum branch piping length

Pair: N/A

10 m

Twin and triple: L2≤Limit

Double twin: L2+L4≤Limit

20 m

Summary of Contents for Sky Air Alpha RZAG100N7V1B

Page 1: ...staller reference guide Sky Air Alpha series English Installer reference guide Sky Air Alpha series RZAG71N7V1B RZAG100N7V1B RZAG125N7V1B RZAG140N7V1B RZAG71N7Y1B RZAG100N7Y1B RZAG125N7Y1B RZAG140N7Y1...

Page 2: ...6 5 1 About checking the refrigerant piping 18 6 5 2 Precautions when checking the refrigerant piping 18 6 5 3 Checking refrigerant piping Setup 19 6 5 4 To check for leaks 19 6 5 5 To perform vacuum...

Page 3: ...uch the refrigerant piping water piping or internal parts during and immediately after operation It could be too hot or too cold Give it time to return to normal temperature If you must touch it wear...

Page 4: ...operated and stored MUST be larger than the minimum floor area defined in table below A m2 This applies to Indoor units without a refrigerant leakage sensor in case of indoor units with refrigerant l...

Page 5: ...ate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Toxic gas may be produced if refrigerant gas comes into contact with fire DA...

Page 6: ...NG ONLY use copper wires Make sure the field wiring complies with the applicable legislation All field wiring MUST be performed in accordance with the wiring diagram supplied with the product NEVER sq...

Page 7: ...data is available on the regional Daikin website publicly accessible The full set of latest technical data is available on the Daikin Business Portal authentication required 2 2 Installer reference gu...

Page 8: ...tion R Air cooled split outdoor unit Z Inverter A Refrigerant R32 G High end series 71 140 Capacity class N7 Model series V1 Power supply 1 220 240 V 50 Hz Y1 Power supply 3N 380 415 V 50 Hz B Europea...

Page 9: ...quipment and electric wires keeping proper distances away from stereo equipment personal computers etc b a c d f e mm 1500 1500 1000 1000 1000 1000 a Earth leakage protector b Fuse c Outdoor unit d In...

Page 10: ...hat the outdoor unit is NEVER snowed up a b c c d a Snow cover or shed b Pedestal minimum height 150 mm c Prevailing wind direction d Air outlet Snow might build up and freeze between the heat exchang...

Page 11: ...s L2 L3 double twin Liquid piping 9 5 mm Gas piping 15 9 mm L1 pair twin triple double twin Model New a Existing b L1 liquid piping L1 gas piping RZAG71 Size down 6 4 mm 12 7 mm Standard 9 5 mm 15 9 m...

Page 12: ...out preparing electrical wiring INFORMATION Also read the precautions and requirements in the General safety precautions chapter INFORMATION Also read 6 7 5 Specifications of standard wiring component...

Page 13: ...e service cover is removed 6 2 2 To open the outdoor unit DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING 1 3 2 4 1 6 3 Mounting the outdoor unit 6 3 1 About mounting the outdoor unit Typical work...

Page 14: ...ollowing figure INFORMATION If necessary you can use a drain pan field supply to prevent drain water from dripping NOTICE If the unit CANNOT be installed fully level always make sure that the inclinat...

Page 15: ...Using the stop valves 6 4 2 Precautions when connecting the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters General safety precautions Preparation...

Page 16: ...ly flared in a perfect circle c Make sure the flare nut is fitted 6 4 6 To braze the pipe end The indoor unit and outdoor unit have flare connections Connect both ends without brazing If brazing shoul...

Page 17: ...5 16 5 Stem cap gas side 22 5 27 5 To handle the service cap ALWAYS use a charge hose equipped with a valve depressor pin since the service port is a Schrader type valve After handling the service po...

Page 18: ...he refrigerant piping The outdoor unit s internal refrigerant piping has been factory tested for leaks You only have to check the outdoor unit s external refrigerant piping Before checking the refrige...

Page 19: ...a manifold pressure of 0 1 MPa 1 bar 4 After turning the pump OFF check the pressure for at least 1 hour 5 If you do NOT reach the target vacuum or CANNOT maintain the vacuum for 1 hour do the follow...

Page 20: ...el and fixing it to the inside of the outdoor unit 6 6 2 About the refrigerant This product contains fluorinated greenhouse gases Do NOT vent gases into the atmosphere Refrigerant type R32 Global warm...

Page 21: ...m 20 30 m 30 40 m 40 45 m R1 0 35 kg 0 7 kg a 0 55 kg b 0 7 kg a 1 05 kg a 1 4 kg a 1 55 kg a R2 0 2 kg 0 4 kg 0 4 kg 0 6 kg 0 8 kg a 1 kg a a Only for RZAG100 140 b Only for RZAG71 In case of size up...

Page 22: ...by pressing the BS2 button once 5 Push the BS3 button once 6 When the display is not blinking anymore press the BS3 button again to activate vacuum mode To deactivate vacuum mode After charging or va...

Page 23: ...wer supply 6 7 2 About electrical compliance RZAG71 140N7V1B Equipment complying with EN IEC 61000 3 12 European International Technical Standard setting the limits for harmonic currents produced by e...

Page 24: ...cover 1 Remove the service cover See 6 2 2 To open the outdoor unit on page 13 2 Strip insulation 20 mm from the wires a b a Strip wire end to this point b Excessive strip length may cause electrical...

Page 25: ...er See 6 8 2 To close the outdoor unit on page 25 8 Connect an earth leakage circuit breaker and fuse to the power supply line 6 8 Finishing the outdoor unit installation 6 8 1 To finish the outdoor u...

Page 26: ...illed the unit must be closed Power up the unit after it is closed You read the complete installation instructions as described in the installer reference guide The indoor units are properly mounted I...

Page 27: ...g displayed the currently set temperature is not displayed The wiring is disconnected or there is a wiring error between power supply and outdoor unit between outdoor unit and indoor units between ind...

Page 28: ...a fan rotates due to strong wind it may store electricity in the capacitor or in the main circuit and cause electric shock 5 After the service is finished plug the junction connector back in Otherwise...

Page 29: ...low pressure sensor to protect the compressor by turning it OFF NEVER short circuit the low pressure switch during pump down operation 11 3 To pump down DANGER RISK OF EXPLOSION Pump down Refrigerant...

Page 30: ...row of units A E a b c d e eB eD a b c d e eB eD A B C D E B HU HD H B 100 A B C 100 1 100 100 B E 100 1000 500 A B C E 150 1 150 150 1000 500 D 500 D E 500 1000 500 B D 100 100 500 500 B D E 1 2 1 HD...

Page 31: ...tween the upper and lower units A2 Then install a roof between the upper and lower units Install the upper unit high enough above the lower unit to prevent ice buildup at the upper unit s bottom plate...

Page 32: ...6A X28A and X77A 4 Colours BLK black RED red BLU blue WHT white GRN green 4 Legend English Translation Legend Legend Field supply Field supply Optional Optional Part n Part n Description Description A...

Page 33: ...sed installer Technical skilled person who is qualified to install the product User Person who is owner of the product and or operates the product Applicable legislation All international European nat...

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Page 36: ...4P573381 1 2019 04 Copyright 2019 Daikin...

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