Daikin Outdoor Inverter Heat Pump Unit RZAG100M7Y1B

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

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.

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?

Did you press the pump down button (BS2) for at least 8 seconds?

BS2 is located on the PCB in the outdoor unit (see wiring diagram). The compressor and outdoor unit fan start automatically. The indoor unit fan might start automatically.

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

If it is not closed properly during compressor operation, the system cannot be pumped down.

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

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

Formula to calculate the greenhouse gas emissions

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000