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5 Preparation

Installer reference guide

9

RZASG71~Y1
Sky Air Advance-series
4P486047-1 – 2017.04

5.2.2

Additional installation site requirements
of the outdoor unit in cold climates

Protect the outdoor unit against direct snowfall and take care that 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

5.3

Preparing refrigerant piping

5.3.1

Refrigerant piping requirements

INFORMATION

Also  read  the  precautions  and  requirements  in  the
"General safety precautions" chapter.

When connecting multiple indoor units to the outdoor unit, mind the
following:

Refrigerant branch kit One or more refrigerant branch kits are

required. See 

"4.3.1 Possible options for the

outdoor unit" on page 7

.

Upward and
downward piping

Perform upward and downward piping only
on the main piping line (L1).

Branch pipes

▪ Install the branch pipes horizontally (with a

maximum inclination of 15°) or vertically.

▪ Make the length of the branch pipes to the

indoor units as short as possible.

▪ Try  to  keep  length  of  the  branch  pipes  to

the indoor units equal.

Definitions: L1~L7, H1, H2

Pair

(a)

H1

L1

Twin

(a)

H1

H2

L1

L2

L3

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.

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.

Flare connections:

 Only use annealed material.

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

RZASG71

Standard

Ø9.5 mm

Ø15.9 mm

RZASG100~140 Standard

Ø9.5 mm

Ø15.9 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.

Содержание RZASG100M7V1B

Страница 1: ...nstaller reference guide Sky Air Advance series English Installer reference guide Sky Air Advance series RZASG71M2V1B RZASG100M7V1B RZASG125M7V1B RZASG140M7V1B RZASG100M7Y1B RZASG125M7Y1B RZASG140M7Y1...

Страница 2: ...recautions when checking the refrigerant piping 16 6 5 3 Checking refrigerant piping Setup 16 6 5 4 To check for leaks 16 6 5 5 To perform vacuum drying 17 6 6 Charging refrigerant 17 6 6 1 About char...

Страница 3: ...OT touch 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...

Страница 4: ...ake sure there is no oxygen in the system Refrigerant may only be charged after performing the leak test and the vacuum drying In case re charge is required refer to the nameplate of the unit It state...

Страница 5: ...earth leakage protector make sure it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector NOTICE Precautions when layi...

Страница 6: ...do and know to install the system Commissioning What to do and know to commission the system after it is installed Hand over to the user What to give and explain to the user Maintenance and service Ho...

Страница 7: ...n manual of the refrigerant branch kit Demand adaptor kit SB KRP58M52 Includes the additional mounting plate EKMKSA2 Can be used for the following Low noise To lower the operation sound of the outdoor...

Страница 8: ...ght be higher than the sound pressure level mentioned in Sound spectrum in the data book due to environmental noise and sound reflections INFORMATION The sound pressure level is less than 70 dBA In pl...

Страница 9: ...rresponds 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 low...

Страница 10: ...win L2 L3 Limit L4 L5 Limit L6 L7 Limit L2 L4 L3 L7 Limit 10 m 6 Maximum height between indoor and outdoor Pair twin triple and double twin H1 Limit 30 m 7 Maximum height between indoors Pair N A Twin...

Страница 11: ...ing Charging refrigerant Connecting the electrical wiring Finishing the outdoor installation Finishing the indoor installation INFORMATION For installation of the indoor unit mounting the indoor unit...

Страница 12: ...e unit in order to prevent the invasion of water in the unit and to avoid the drain water dripping see the following illustration INFORMATION If necessary you can use a drain plug kit field supply to...

Страница 13: ...thing but the designated refrigerant to get mixed into the refrigerant cycle e g air Only use R32 when adding refrigerant Only use installation tools e g manifold gauge set that are exclusively used f...

Страница 14: ...d film on the inside of the piping This film adversely affects valves and compressors in the refrigerating system and prevents proper operation Set the nitrogen pressure to 20 kPa 0 2 bar just enough...

Страница 15: ...oor unit Piping length Keep field piping as short as possible Piping protection Protect the field piping against physical damage 1 Do the following Remove the service cover a with screw b Remove the p...

Страница 16: ...ists of the following stages 1 Checking for leaks in the refrigerant piping 2 Performing vacuum drying to remove all moisture air or nitrogen from the refrigerant piping If there is a possibility of m...

Страница 17: ...it is factory charged with refrigerant but in some cases the following might be necessary What When Charging additional refrigerant When the total liquid piping length is more than specified see later...

Страница 18: ...ak 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 dev...

Страница 19: ...ins 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 CAU...

Страница 20: ...frigerant charge in the system expressed as tonnes CO2 equivalent is used to determine the maintenance intervals Follow the applicable legislation Formula to calculate the greenhouse gas emissions GWP...

Страница 21: ...ble legislation Interconnection cables Minimum cable section of 2 5 mm and applicable for 230 V Recommended field fuse 20 A 25 A 32 A 16 A 20 A Earth leakage circuit breaker Must comply with applicabl...

Страница 22: ...e frame When cables are routed from the unit a protection sleeve for the conduits PG insertions can be inserted at the knockout hole When you do not use a wire conduit protect the wires with vinyl tub...

Страница 23: ...eat up the compressor oil to avoid oil shortage and compressor breakdown during startup NOTICE NEVER operate the unit without thermistors and or pressure sensors switches Burning of the compressor mig...

Страница 24: ...vice cover to prevent electric shocks 3 Turn ON power for at least 6 hours before starting operation to protect the compressor 4 On the user interface set the unit to cooling operation mode 2 Start th...

Страница 25: ...the unit 9 Maintenance and service NOTICE Maintenance must be done by an authorised installer or service agent We recommend to do maintenance at least once a year However applicable legislation might...

Страница 26: ...y for reuse recycling and recovery 11 1 Overview Disposal Typical workflow Disposing of the system typically consists of the following stages 1 Pumping down the system 2 Bringing the system to a speci...

Страница 27: ...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 250 100 100 B E 100 1000 500 A B C E 250 150 150 1000 500 D 500 D E 500 1000 500 B D 100 500 B D E 1 2 1 HB HD HB HU 25...

Страница 28: ...e upper unit high enough above the lower unit to prevent ice buildup at the upper unit s bottom plate B1 B2 B1 If there is no danger of drainage dripping and freezing between the upper and lower units...

Страница 29: ...ctive devices S1PH S1PLand Q1E 3 Refer to the combination table and the option manual for how to connect the wiring to X6A X28A and X77A 4 Colours BLK black RED red BLU blue WHT white GRN green 4 Lege...

Страница 30: ...licable for a certain product or domain Service company Qualified company which can perform or coordinate the required service to the product Installation manual Instruction manual specified for a cer...

Страница 31: ......

Страница 32: ...4P486047 1 2017 04 Copyright 2017 Daikin...

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