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Installation and operation manual

CO ZEAS outdoor unit and capacity up unit₂English

Installation and operation manual

CO ZEAS outdoor unit and capacity up unit₂

LREN8A7Y1B

LREN10A7Y1B

LREN12A7Y1B

LRNUN5A7Y1

(mm)

≥ ≥300 500

≥500

≥10

BB1 B2 B3

≥ ≥100 500

≥500

≥50

≥300

≥200

C1 C2 C3

≥ ≥300 500

≥20

≥ ≥10 50

≥ ≥100 500

≥100

≥300

≥400

≥200

Y X

500

1500

Table of contents

Installation and operation manual

LREN8~12A7 + LRNUN5A7

CO ZEAS outdoor unit and capacity up unit₂

4P704141-1 – 2022.08

Table of contents

1 About the documentation 4

1.1 About this document.................................................................. 4

2 Specific installer safety instructions 4

For the user 7

3 User safety instructions 7

3.1 General...................................................................................... 7

3.2 Instructions for safe operation ................................................... 8

4 About the system 10

4.1 System layout............................................................................ 10

5 Operation 10

5.1 Operation range ........................................................................ 10

5.2 Field piping pressure ................................................................. 10

6 Maintenance and service 10

6.1 About the refrigerant.................................................................. 10

6.2 Recommended maintenance and inspection ............................ 11

7 Troubleshooting 11

7.1 Error codes: Overview............................................................... 12

8 Relocation 12

9 Disposal 12

For the installer 12

10 About the box 12

10.1 Outdoor unit............................................................................... 12

10.1.1 To unpack the outdoor unit ......................................... 12

10.1.2 To handle the outdoor unit .......................................... 13

10.1.3 To remove the accessories from the outdoor unit....... 13

11 About the units and options 13

11.1 About the outdoor unit ............................................................... 13

11.1.1 Labels on outdoor unit ................................................ 14

11.2 System layout............................................................................ 15

11.3 Indoor unit constraints ............................................................... 16

12 Unit installation 16

12.1 Preparing the installation site .................................................... 16

12.1.1 Installation site requirements of the outdoor unit ........ 16

12.1.2 Additional installation site requirements of the

outdoor unit in cold climates ....................................... 17

12.1.3 Additional installation site requirements for CO₂

refrigerant.................................................................... 17

12.2 Opening and closing the unit..................................................... 18

12.2.1 To open the outdoor unit............................................. 18

12.2.2 To open the electrical component box of the outdoor

unit .............................................................................. 18

12.2.3 To close the outdoor unit ............................................ 18

12.3 Mounting the outdoor unit.......................................................... 19

12.3.1 To provide the installation structure............................ 19

12.3.2 To install the outdoor unit............................................ 20

12.3.3 To remove the transportation stay .............................. 20

12.3.4 To provide drainage.................................................... 20

13 Piping installation 20

13.1 Preparing refrigerant piping....................................................... 20

13.1.1 Refrigerant piping requirements.................................. 20

13.1.2 Refrigerant piping material.......................................... 21

13.1.3 Refrigerant piping length and height difference .......... 21

13.1.4 To select the piping size ............................................. 22

13.1.5 To select refrigerant branch kits................................... 22

13.1.6 To select expansion valves for refrigeration ................ 22

13.2 Using stop valves and service ports ........................................... 23

13.2.1 To handle the stop valve.............................................. 23

13.2.2 To handle the service port ........................................... 23

13.2.3 Tightening torques ....................................................... 24

13.3 Connecting the refrigerant piping ............................................... 24

13.3.1 To cut off the spun pipe ends....................................... 24

13.3.2 To connect the refrigerant piping to the outdoor unit ... 25

13.3.3 Guidelines to connect T-joints...................................... 26

13.3.4 Guidelines to install a dryer.......................................... 26

13.3.5 Guidelines to install a filter........................................... 27

13.4 About safety valves .................................................................... 27

13.4.1 To install safety valves................................................. 27

13.4.2 About changeover valves............................................. 28

13.4.3 Safety valve reference information .............................. 28

13.5 Checking the refrigerant piping .................................................. 28

13.5.1 Checking refrigerant piping: Setup............................... 29

13.5.2 To perform a strength pressure test and leak test ....... 29

13.5.3 To perform vacuum drying........................................... 29

13.6 Insulating the refrigerant piping .................................................. 29

13.6.1 To insulate the gas stop valve ..................................... 30

14 Electrical installation 30

14.1 About electrical compliance........................................................ 30

14.2 Field wiring: Overview ................................................................ 31

14.3 Guidelines when knocking out knockout holes........................... 32

14.4 Guidelines when connecting the electrical wiring ....................... 32

14.5 Specifications of standard wiring components ........................... 32

14.6 Connections to the outdoor unit ................................................. 33

14.6.1 Low voltage wiring – Outdoor unit................................ 33

14.6.2 High voltage wiring – Outdoor unit............................... 34

14.7 Connections to the capacity up unit ........................................... 35

14.7.1 Low voltage wiring – Capacity up unit.......................... 35

14.7.2 High voltage wiring – Capacity up unit......................... 36

15 Charging refrigerant 36

15.1 Precautions when charging refrigerant....................................... 36

15.2 To determine the refrigerant amount .......................................... 37

15.3 To charge refrigerant .................................................................. 37

16 Configuration 38

16.1 Making field settings................................................................... 38

16.1.1 About making field settings.......................................... 38

16.1.2 To access the field setting components....................... 38

16.1.3 Field setting components............................................. 38

16.1.4 To access mode 1 or 2 ................................................ 39

16.1.5 To access field setting [2-21] ....................................... 39

17 Commissioning 40

17.1 Precautions when commissioning .............................................. 40

17.2 Checklist before commissioning................................................. 40

17.3 About the test run ....................................................................... 40

17.4 To perform a test run (7-segment display) ................................. 41

17.4.1 Test run checks............................................................ 41

17.4.2 Correcting after abnormal completion of the test run... 42

17.5 Logbook...................................................................................... 42

18 Troubleshooting 42

18.1 Solving problems based on error codes ..................................... 42

18.1.1 Error codes: Overview ................................................. 42

19 Technical data 46

19.1 Piping diagram: Outdoor unit...................................................... 46

19.2 Piping diagram: Capacity up unit................................................ 47

19.3 Wiring diagram: Outdoor unit ..................................................... 48

2 Specific installer safety instructions

Installation and operation manual

LREN8~12A7 + LRNUN5A7

CO ZEAS outdoor unit and capacity up unit₂

4P704141-1 – 2022.08

WARNING

Serious injury and/or damage can result from the blow-off

of the liquid receiver safety valve (see "19.1 Piping

diagram: Outdoor unit"[446]):

▪ NEVER service the unit when the pressure at the liquid

receiver is higher than the set pressure of the liquid

receiver safety valve (90bar gauge ±3%). If this safety

valve releases refrigerant, it can cause serious injury

and/or damage.

▪ If the pressure > set pressure, ALWAYS discharge

from pressure relief devices before servicing.

▪ It is recommended to install and secure blow-off piping

to the safety valve.

▪ ONLY alter the safety valve if the refrigerant has been

removed.

WARNING

All installed safety valves MUST ventilate to the outdoor

space and NOT into a closed area.

WARNING

Install safety valves in a proper way according to the

applicable national regulation.

WARNING

To ensure that the safety valve(s) and the changeover

valve are properly reinstalled, a leak test is mandatory.

CAUTION

When installing a safety valve, ALWAYS add enough

support to the valve. An activated safety valve is under

high pressure. If not installed securely, the safety valve

may cause damage to the piping or the unit.

CAUTION

Do NOT open the stop valve until you have measured the

insulation resistance of the main power supply circuit.

CAUTION

ALWAYS use nitrogen gas for leak tests.

CAUTION

ALWAYS use K65 T-joints for refrigerant branching.

CAUTION

Install the refrigerant piping or components in a position

where they are unlikely to be exposed to any substance

which may corrode components containing refrigerant,

unless the components are constructed of materials that

are inherently resistant to corrosion or are suitably

protected against corrosion.

Electrical installation (see ["14Electrical installation" 430])

DANGER: RISK OF ELECTROCUTION

WARNING

Electrical wiring connection method MUST be in

accordance with the instructions from:

▪ This manual. See ["14Electrical installation" 430].

▪ The wiring diagram of the outdoor unit, which is

delivered with the unit, located on the inside of the top

plate. For a translation of its legend, see "19.3 Wiring

diagram: Outdoor unit"[448].

WARNING

Provide adequate measures to prevent that the unit can be

used as a shelter by small animals. Small animals that

make contact with electrical parts can cause malfunctions,

smoke or fire.

WARNING

▪ If the power supply has a missing or wrong N-phase,

equipment might break down.

▪ Establish proper earthing. Do NOT earth the unit to a

utility pipe, surge absorber, or telephone earth.

Incomplete earthing may cause electrical shock.

▪ Install the required fuses or circuit breakers.

▪ Secure the electrical wiring with cable ties so that the

cables do NOT come in contact with sharp edges or

piping, particularly on the high-pressure side.

▪ Do NOT use taped wires, extension cords, or

connections from a star system. They can cause

overheating, electrical shock or fire.

▪ Do NOT install a phase advancing capacitor, because

this unit is equipped with an inverter. A phase

advancing capacitor will reduce performance and may

cause accidents.

WARNING

▪ All wiring MUST be performed by an authorised

electrician and MUST comply with the applicable

national wiring regulation.

▪ Make electrical connections to the fixed wiring.

▪ All components procured on-site and all electrical

construction MUST comply with the applicable

legislation.

WARNING

If NOT factory installed, a main switch or other means for

disconnection, having a contact separation in all poles

providing full disconnection under overvoltage category III

condition, MUST be installed in the fixed wiring.

WARNING

ALWAYS use multicore cable for power supply cables.

WARNING

Use an all-pole disconnection type breaker with at least

3 mm between the contact point gaps that provides full

disconnection under overvoltage category III.

WARNING

If the supply cord is damaged, it MUST be replaced by the

manufacturer, its service agent or similarly qualified

persons in order to avoid a hazard.

CAUTION

This equipment is NOT intended for use in residential

locations and will NOT guarantee to provide adequate

protection to radio reception in such locations.

Charging refrigerant (see ["15Charging refrigerant" 436])

WARNING

Charging of refrigerant MUST be in accordance with the

instructions from this manual. See "15 Charging

refrigerant"[436].

Produktspecifikationer

Varumärke:	Daikin
Kategori:	kylskåp
Modell:	LREN12A7Y1B
Färg på produkten:	Groen
Vikt:	39 g
Bredd:	58 mm
Djup:	80 mm
Höjd:	20 mm
Förpackningens vikt:	120 g
Förpackningens bredd:	125 mm
Djuppackning:	175 mm
Förpackningshöjd:	30 mm
Typ av förpackning:	Doos
Ursprungsland:	China
Avsedd för:	PC
Internera:	Ja
Antal portar USB 3.2 Gen 2 (3.1 Gen 2) Typ C:	2
Stöder Linux:	Ja
Snabbinstallationsguide:	Ja
Värdgränssnitt:	PCIe
Medföljande drivrutiner:	Ja
Monteringsfästen ingår:	Ja
(Ytter) huvudpaketets höjd:	405 mm
(Ytter) huvudförpackningens bredd:	340 mm
(Ytter) huvudförpackningens bruttovikt:	3600 g
(Ytre) huvudpaketets längd:	205 mm
Kvantitet per (yttre) huvudkartong:	30 stuk(s)
Harmoniserad systemkod (HS):	84733020
Hot-swap:	Ja
Expansionskort standard:	PCI 3.0
Dataöverföringshastighet (max):	10 Gbit/s
Utgångsgränssnitt:	USB 3.2 Gen 2 (3.1 Gen 2)
UASP-stöd:	Ja