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Daikin RXM35R5V1B [36/68] Piping installation
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7 | Piping installation
Installer reference guide
36
RXJ-M(9)_RXA-A(9)_RXM-R(9)_ARXM-R(9)
R32 Split system air conditioners
4P519439-12M – 2021.02
Unit Installation period Protection method
Outdoor unit >1month Pinch the pipe
<1month Pinch or tape the pipe
Indoor unit Regardless of the period
INFORMATION
Do NOT open the refrigerant stop valve before checking the refrigerant piping. When
you need to charge additional refrigerant it is recommended to open the refrigerant
stop valve after charging.
WARNING
Connect the refrigerant piping securely before running the compressor. If the
refrigerant piping is NOT connected and the stop valve is open when the compressor
is run, air will be sucked in. This will cause abnormal pressure in the refrigeration
cycle, which may result in equipment damage and even injury.
7.2.3 Guidelines when connecting the refrigerant piping
Take the following guidelines into account when connecting pipes:
▪ Coat the flare inner surface with ether oil or ester oil when connecting a flare
nut. Tighten 3 or 4 turns by hand, before tightening firmly.
▪ ALWAYS use 2 wrenches together when loosening a flare nut.
▪ ALWAYS use a spanner and torque wrench together to tighten the flare nut when
connecting the piping. This to prevent nut cracking and leaks.
a
b
c
d
a Torque wrench
b Spanner
c Piping union
d Flare nut
Piping size (mm) Tightening torque
(N•m)
Flare dimensions
(A) (mm)
Flare shape (mm)
Ø6.4 15~17 8.7~9.1
R=
0.4~0.8
±2
45°
90°
±2
ØA
Ø9.5 33~39 12.8~13.2
7.2.4 Pipe bending guidelines
Use a pipe bender for bending. All pipe bends should be as gentle as possible
(bending radius should be 30~40 mm or larger).
Содержание
- Installer reference guide 1
- R32 split system air conditioners 1
- About the box 21 2
- About the documentation 4 2
- About the unit 24 2
- Charging refrigerant 43 2
- General safety precautions 5 2
- Installer reference guide 2
- Piping installation 33 2
- Specific installer safety instructions 15 2
- Table of contents 2
- Unit installation 25 2
- Commissioning 55 3
- Configuration 53 3
- Disposal 63 3
- Electrical installation 47 3
- Finishing the outdoor unit installation 52 3
- Glossary 65 3
- Hand over to the user 58 3
- Maintenance and service 59 3
- Table of contents 3
- Troubleshooting 61 3
- About the documentation 4
- About this document 4
- About the documentation 5
- General safety precautions 5
- Meaning of warnings and symbols 5
- For the installer 6
- General 6
- General safety precautions 6
- General safety precautions 7
- Installation site 7
- Caution 8
- General safety precautions 8
- Notice 8
- Warning 8
- General safety precautions 9
- A ceiling mounted unit ceiling mounted unit 10
- B wall mounted unit wall mounted unit 10
- C floor standing unit floor standing unit 10
- During tests never pressurize the product with a pressure higher than the maximum allowable pressure as indicated on the nameplate of the unit 10
- General safety precautions 10
- If applicable see the installation manual or installer reference guide of your application for more information 10
- Installer reference guide 10
- M total refrigerant charge in the system 10
- Make sure refrigerant piping installation complies with applicable legislation in europe en378 is the applicable standard 10
- Make sure the field piping and connections are not subjected to stress 10
- Minimum floor area 10
- Notice 10
- P519439 12m 2021 2 10
- R32 split system air conditioners 10
- Refrigerant in case of r410a or r32 10
- Rxj m 9 _rxa a 9 _rxm r 9 _arxm r 9 10
- Warning 10
- Charge the liquid refrigerant as follows 11
- Danger risk of explosion 11
- Ensure pressure resistance and prevent foreign materials from entering into the system 11
- General safety precautions 11
- In case recharge is required see the nameplate of the unit it states the type of 11
- Lengths some systems require additional charging of refrigerant 11
- Notice 11
- Only use tools exclusively for the refrigerant type used in the system this to 11
- Refrigerant and necessary amount 11
- The unit is factory charged with refrigerant and depending on pipe sizes and pipe 11
- Warning 11
- Electrical 12
- General safety precautions 12
- Caution 13
- General safety precautions 13
- Notice 13
- Warning 13
- General safety precautions 14
- Notice 14
- Specific installer safety instructions 15
- Caution 16
- Charging refrigerant see 8 charging refrigerant 4 43 16
- Danger risk of explosion 16
- Specific installer safety instructions 16
- Warning 16
- Caution 17
- Electrical installation see 9 electrical installation 4 47 17
- Specific installer safety instructions 17
- Warning 17
- Specific installer safety instructions 18
- Specific installer safety instructions 19
- Danger risk of electrocution 20
- Specific installer safety instructions 20
- Warning 20
- About the box 21
- Outdoor unit 21
- Overview about the box 21
- To unpack the outdoor unit 21
- About the box 22
- Caution 22
- Lift the outdoor unit 22
- Remove the accessories at the bottom of the package 22
- To remove the accessories from the outdoor unit 22
- About the box 23
- About the unit 24
- Identification 24
- Identification label outdoor unit 24
- Overview about the units and options 24
- In this chapter 25
- Preparing the installation site 25
- Unit installation 25
- Installation site requirements of the outdoor unit 26
- Unit installation 26
- Unit installation 27
- Additional installation site requirements of the outdoor unit in cold climates 28
- Unit installation 28
- About opening the units 29
- Opening and closing the unit 29
- To close the outdoor unit 29
- To open the outdoor unit 29
- Unit installation 29
- About mounting the outdoor unit 30
- Mounting the outdoor unit 30
- Precautions when mounting the outdoor unit 30
- To provide the installation structure 30
- Unit installation 30
- To install the outdoor unit 31
- To provide drainage 31
- Unit installation 31
- To prevent the outdoor unit from falling over 32
- Unit installation 32
- In this chapter 33
- Piping installation 33
- Preparing refrigerant piping 33
- Refrigerant piping requirements 33
- About connecting the refrigerant piping 34
- Connecting the refrigerant piping 34
- Piping installation 34
- Refrigerant piping insulation 34
- Refrigerant piping length and height difference 34
- Caution 35
- Danger risk of burning scalding 35
- Flaring pipe ends 35
- Information 35
- Keeping in mind the guidelines for 35
- Notice 35
- Pipe bending 35
- Piping installation 35
- Precautions when connecting the refrigerant piping 35
- Using the stop valves 35
- Guidelines when connecting the refrigerant piping 36
- Pipe bending guidelines 36
- Piping installation 36
- Piping installation 37
- To flare the pipe end 37
- Using the stop valve and service port 37
- Piping installation 38
- About checking the refrigerant piping 39
- Checking the refrigerant piping 39
- Piping installation 39
- To connect the refrigerant piping to the outdoor unit 39
- Piping installation 40
- Precautions when checking the refrigerant piping 40
- To check for leaks 40
- Piping installation 41
- To perform vacuum drying 41
- After opening the stop valve it is possible that the pressure in the refrigerant piping does not increase this might be caused by e g the closed state of the expansion valve in the outdoor unit circuit but does not present any problem for correct operation of the unit 42
- Information 42
- Piping installation 42
- About charging refrigerant 43
- Charging refrigerant 43
- In this chapter 43
- About the refrigerant 44
- Charging refrigerant 44
- Charging refrigerant 45
- Precautions when charging refrigerant 45
- To charge additional refrigerant 45
- To determine the additional refrigerant amount 45
- To determine the complete recharge amount 45
- Charging refrigerant 46
- To fix the fluorinated greenhouse gases label 46
- About connecting the electrical wiring 47
- Electrical installation 47
- In this chapter 47
- Precautions when connecting the electrical wiring 47
- Danger risk of electrocution 48
- Electrical installation 48
- Warning 48
- Electrical installation 49
- Guidelines when connecting the electrical wiring 49
- Electrical installation 50
- Specifications of standard wiring components 50
- To connect the electrical wiring to the outdoor unit 50
- Electrical installation 51
- Install the service cover 51
- Tighten the terminal screws securely we recommend using a phillips screwdriver 51
- Finishing the outdoor unit installation 52
- To close the outdoor unit 52
- To finish the outdoor unit installation 52
- About the standby electricity saving function 53
- Configuration 53
- Facility setting 53
- Standby electricity saving function 53
- To set the facility mode 53
- Configuration 54
- Information 54
- Warning 54
- Checklist before commissioning 55
- Commissioning 55
- In this chapter 55
- Precautions when commissioning 55
- Checklist during commissioning 56
- Commissioning 56
- In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature test run can be disabled if necessary 56
- Prerequisite power supply must be in the specified range 56
- Prerequisite test run may be performed in cooling or heating mode 56
- Prerequisite test run should be performed in accordance with the operation manual of the indoor unit to make sure that all functions and parts are working properly 56
- The system stops operating 3 minutes after the unit is turned off 56
- To perform a test run 56
- When the test run is finished set the temperature to a normal level in cooling mode 26 28 c in heating mode 20 24 c 56
- Commissioning 57
- Starting up the outdoor unit 57
- Hand over to the user 58
- Checklist for yearly maintenance of the outdoor unit 59
- Maintenance and service 59
- Maintenance safety precautions 59
- Overview maintenance and service 59
- About the compressor 60
- Maintenance and service 60
- Overview troubleshooting 61
- Precautions when troubleshooting 61
- Solving problems based on symptoms 61
- Symptom the unit is not heating or cooling as expected 61
- Troubleshooting 61
- Fault diagnosis using led on outdoor unit pcb 62
- Troubleshooting 62
- Disposal 63
- Overview disposal 63
- To pump down 63
- Disposal 64
- To start and stop forced cooling 64
- To start and stop forced cooling using the indoor unit on off switch 64
- To start and stop forced cooling using the indoor unit user interface 64
- Glossary 65
- Copyright 2021 daikin 68
- Daikin isitma ve soğutma si stemleri san ti c a ş 68
- P519439 12m 68
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