Maintenance And Service; Maintenance Safety Precautions; To Prevent Electrical Hazards - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

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Maintenance and service

24 Maintenance and service
In this chapter

24.1 Maintenance safety precautions

24.1.1 To prevent electrical hazards

Installer and user reference guide
172
NOTICE
Maintenance MUST be done by an authorised 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
Formula to calculate the quantity in CO
refrigerant × total refrigerant charge [in kg] / 1000
24.1 Maintenance safety precautions............................................................................................................................................ 172
24.1.1 To prevent electrical hazards................................................................................................................................. 172
24.2 Checklist for yearly maintenance of the outdoor unit........................................................................................................... 173
24.3 About service mode operation............................................................................................................................................... 173
24.3.1 To use vacuum mode ............................................................................................................................................. 174
24.3.2 To recover refrigerant............................................................................................................................................ 174
24.3.3 Before the maintenance and service of a system with SV unit............................................................................. 174
24.4 SV unit maintenance and service label .................................................................................................................................. 174
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
WARNING
Prior to start working on systems containing flammable refrigerant, safety checks are
necessary to ensure that the risk of ignition is minimised. Therefore, some
instructions should be followed.
Please refer to the service manual for more information.
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.
When performing service to inverter equipment:
1 Do NOT open the switch box cover for 10 minutes after turning off the power
supply.
equivalent.
2
equivalent tonnes: GWP value of the
2
RYMA5+RXYA8~20A7Y1B
4P749918-1 - 2023.12
VRV 5 heat pump