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Daikin RXM35R5V1B [59/68] Maintenance and service
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14 | Maintenance and service
Installer reference guide
59
RXJ-M(9)_RXA-A(9)_RXM-R(9)_ARXM-R(9)
R32 Split system air conditioners
4P519439-12M – 2021.02
14 Maintenance and service
NOTICE
Maintenance MUST be done by an authorized installer or service agent.
We recommend performing maintenance at least once a year. However, applicable
legislation might require shorter maintenance intervals.
NOTICE
Applicable legislation on fluorinated greenhouse gases requires that the refrigerant
charge of the unit is indicated both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent tonnes: GWP value of the
refrigerant × total refrigerant charge [in kg] / 1000
14.1 Overview: Maintenance and service
This chapter contains information about:
▪ Maintenance safety precautions
▪ The yearly maintenance of the outdoor unit
14.2 Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
NOTICE:Risk of electrostatic discharge
Before performing any maintenance or service work, touch a metal part of the unit in
order to eliminate static electricity and to protect the PCB.
WARNING
▪ Before carrying out any maintenance or repair activity, ALWAYS switch off the
circuit breaker on the supply panel, remove the fuses or open the protection
devices of the unit.
▪ Do NOT touch live parts for 10 minutes after the power supply is turned off
because of high voltage risk.
▪ Please note that some sections of the electric component box are hot.
▪ Make sure you do NOT touch a conductive section.
▪ Do NOT rinse the unit. This may cause electric shocks or fire.
14.3 Checklist for yearly maintenance of the outdoor unit
Check the following at least once a year:
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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