Daikin Outdoor Inverter Heat Pump Unit RZAG125M7V1B

NOTICE: Before completely recharging, perform vacuum drying on the outdoor unit's internal refrigerant piping as well

NOTICE: To perform vacuum drying or a complete recharge of the outdoor unit’s internal refrigerant piping it is necessary to activate the vacuum mode

WARNING: Some sections of the refrigerant circuit may be isolated from other sections caused by components with specific functions (e.g. valves)

WARNING: FLAMMABLE MATERIAL - The refrigerant inside this unit is mildly flammable

WARNING: The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater)

WARNING: Do NOT pierce or burn refrigerant cycle parts

WARNING: The refrigerant inside the unit is mildly flammable, but normally does not leak

To activate/deactivate the vacuum mode field setting

WARNING: Only use R32 as refrigerant

WARNING: Only use R32 as refrigerant. Other substances may cause explosions and accidents. R32 contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere. When charging refrigerant, always use protective gloves and safety glasses.

CAUTION: To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant.

Outdoor unit's external refrigerant piping checked (leak test, vacuum drying)

Electrical wiring connected if necessary

Refrigerant piping is connected and checked (leak test and vacuum drying)

To charge additional refrigerant, follow these steps:

Connect the refrigerant cylinder to both the service port of the gas stop valve and the service port of the liquid stop valve

Enter the additional refrigerant amount charged

DANGER: RISK OF EXPLOSION - Pump down – Refrigerant leakage

Do NOT use the unit's automatic pump down function to collect all refrigerant into the outdoor unit if there is a leakage in the refrigerant circuit. Use a separate recovery system so that the unit's compressor does NOT have to operate.

CAUTION: Do not use the unit's automatic pump down function if the total piping length exceeds the chargeless length. A fraction of the refrigerant could be left in the circuit.

Is the main power supply switch turned ON?

Are the liquid stop valve and the gas stop valve open?

Press the pump down button (BS2) for at least 8 seconds. Did the compressor and outdoor unit fan start automatically?

±2 minutes after the compressor started, did you close the liquid stop valve?

Once the compressor stops (after 2~5 minutes), did you close the gas stop valve within 3 minutes after the compressor has stopped?

Did the user interface display ' '?

NOTICE: Maintenance must be done by an authorised installer or service agent. We recommend to do maintenance at least once a year. However, applicable legislation might require shorter maintenance intervals.

NOTICE: In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO2-equivalent) is used to determine the maintenance intervals. Follow the applicable legislation.

DANGER: RISK OF ELECTROCUTION. DANGER: RISK OF BURNING. 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.

Did you wait for 10 minutes after turning off the power supply before opening the electrical component box cover?

Did you measure the voltage between terminals on the terminal block for power supply with a tester and confirm that the power supply is shut off?

Did you touch a non-coated metal part to eliminate static electricity before pulling out or plugging in connectors?

Did you pull out junction connectors for the fan motors in the outdoor unit before starting service operation on the inverter equipment?

Did you plug the junction connector back in after the service is finished?

Did you avoid directly connecting power supply cables to compressors (U, V, W)?