Table of Contents
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Table of contents
1.1
About this document..................................................................
3.1
General......................................................................................
3.2
Instructions for safe operation ...................................................
4.1
System layout............................................................................
5.1
Operation range ........................................................................
5.2
Design pressure ........................................................................
6.1
About the refrigerant..................................................................
6.2
Recommended maintenance and inspection ............................
7.1
Error codes: Overview............................................................... 10
10.1
Outdoor unit............................................................................... 10
10.1.1
To unpack the outdoor unit ......................................... 10
10.1.2
To handle the outdoor unit .......................................... 10
10.1.3
11.1
About the outdoor unit ............................................................... 11
11.1.1
Labels on outdoor unit ................................................ 12
11.2
System layout............................................................................ 12
11.3
Indoor unit constraints ............................................................... 13
12.1
Preparing the installation site .................................................... 13
12.1.1
12.1.2
Additional installation site requirements of the
outdoor unit in cold climates ....................................... 13
12.1.3
refrigerant.................................................................... 13
12.2
Opening and closing the unit..................................................... 14
12.2.1
To open the outdoor unit............................................. 14
12.2.2
unit .............................................................................. 15
12.2.3
To close the outdoor unit ............................................ 15
12.3
Mounting the outdoor unit.......................................................... 16
12.3.1
To provide the installation structure ............................ 16
12.3.2
To install the outdoor unit............................................ 17
12.3.3
To provide drainage .................................................... 17
13.1
Preparing refrigerant piping....................................................... 17
13.1.1
Refrigerant piping requirements.................................. 17
13.1.2
Refrigerant piping material.......................................... 17
13.1.3
Refrigerant piping length and height difference .......... 18
13.1.4
To select the piping size ............................................. 18
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B - 2020.08
13.1.5
To select refrigerant branch kits................................... 20
13.1.6
To select expansion valves for refrigeration ................ 20
13.2
Using stop valves and service ports........................................... 20
13.2.1
To handle the stop valve.............................................. 20
13.2.2
To handle the service port ........................................... 21
3
13.2.3
Tightening torques ....................................................... 21
3
13.3
Connecting the refrigerant piping ............................................... 22
13.3.1
To remove the spun pipes ........................................... 22
4
13.3.2
To connect the refrigerant piping to the outdoor unit ... 22
13.3.3
Guidelines to connect T-joints...................................... 23
13.3.4
Guidelines to install a dryer.......................................... 23
5
13.3.5
Guidelines to install safety valves ................................ 23
13.4
Checking the refrigerant piping .................................................. 24
5
13.4.1
Checking refrigerant piping: Setup............................... 24
6
13.4.2
To perform a leak test .................................................. 24
6
13.4.3
To perform vacuum drying ........................................... 24
8
13.5
Insulating the refrigerant piping .................................................. 24
8
8
14.1
About electrical compliance........................................................ 25
14.2
Field wiring: Overview ................................................................ 26
8
8
14.3
Guidelines when knocking out knockout holes........................... 27
14.4
Guidelines when connecting the electrical wiring....................... 27
9
14.5
Specifications of standard wiring components ........................... 27
9
14.6
Connections to the outdoor unit ................................................. 28
9
14.6.1
Low voltage wiring - Outdoor unit................................ 28
14.6.2
High voltage wiring - Outdoor unit............................... 29
9
14.7
Connections to the capacity up unit ........................................... 29
14.7.1
Low voltage wiring - Capacity up unit.......................... 30
10
14.7.2
High voltage wiring - Capacity up unit......................... 30
10
15.1
Precautions when charging refrigerant....................................... 31
15.2
To determine additional refrigerant amount ............................... 32
10
15.3
To charge refrigerant.................................................................. 32
10
16.1
Making field settings................................................................... 33
16.1.1
About making field settings .......................................... 33
16.1.2
To access the field setting components....................... 33
16.1.3
Field setting components ............................................. 33
16.1.4
To access mode 1 or 2 ................................................ 33
11
17.1
Precautions when commissioning .............................................. 34
17.2
Checklist before commissioning................................................. 34
17.3
About the test run ....................................................................... 35
17.4
To perform a test run (7-segment display) ................................. 35
13
17.4.1
Test run checks............................................................ 35
17.4.2
17.5
Logbook...................................................................................... 36
18.1
Solving problems based on error codes..................................... 37
18.1.1
Error codes: Overview ................................................. 37
19.1
Piping diagram: Outdoor unit...................................................... 40
19.2
Piping diagram: Capacity up unit................................................ 41
19.3
Wiring diagram: Outdoor unit ..................................................... 42
1
About the documentation
17
1.1
About this document
Target audience
Authorised installers + end users
Table of contents
25
31
33
34
37
40
Installation and operation manual
3
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Table of Contents
Troubleshooting
