Table of contents 6.6.2 About the refrigerant ............ 16 Table of contents 6.6.3 Precautions when charging refrigerant ......17 6.6.4 To determine the additional refrigerant amount ... 17 6.6.5 To determine the complete recharge amount ....17 6.6.6 To charge additional refrigerant ........17 1 General safety precautions 6.6.7 To fix the fluorinated greenhouse gases label .....
(on top of the ▪ The installation of the system, and all activities described in the instructions described in the Daikin documentation). installation manual and the installer reference guide MUST be performed by an authorised installer.
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▪ Joints made in installation between parts of refrigerant system shall be accessible for maintenance purposes. WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons. Installation space requirements NOTICE ▪...
1 General safety precautions Ceiling-mounted Wall-mounted Floor-standing DANGER: RISK OF EXPLOSION unit unit unit Pump down – Refrigerant leakage. If you want to pump m (kg) m (kg) m (kg) down the system, and there is a leak in the refrigerant ≤1.842 —...
1 General safety precautions CAUTION WARNING When the refrigerant charging procedure is done or when ▪ ONLY use copper wires. pausing, close valve refrigerant tank ▪ Make sure the field wiring complies with the applicable immediately. If the valve is NOT closed immediately, legislation.
Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin extranet (authentication required). Installer reference guide at a...
4 About the unit Drain cap (2) About the unit WARNING: FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. Overview: About the unit This chapter contains information about: ▪ Identification of the outdoor unit Identification NOTICE When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models.
5 Preparation CAUTION NOTICE ▪ Check if the installation location can support the unit's ▪ Do NOT stack the units on each other. weight. Poor installation is hazardous. It can also cause ▪ Do NOT hang the unit on a ceiling. vibrations or unusual operating noise.
5 Preparation In any case, provide at least 300 mm of free space below the unit. Install the outdoor unit away from direct sea winds. Additionally, make sure the unit is positioned at least 100 mm above Example: Behind the building. the maximum expected level of snow.
6 Installation Preparing electrical wiring Opening the unit 5.4.1 About preparing electrical wiring 6.2.1 About opening the unit At certain times, you have to open the unit. Example: INFORMATION ▪ When connecting the refrigerant piping Also read the precautions and requirements in the "General safety precautions"...
6 Installation Use a vibration-proof rubber (field supply) in cases where vibrations ▪ If you install the unit on a frame, install a waterproof plate within may be transmitted to the building. 150 mm of the bottom side of the unit in order to prevent water from getting into the unit and to avoid drain water dripping (see the Fix the unit securely by means of foundation bolts in accordance following figure).
6 Installation 1 Prepare 2 cables as indicated in the following illustration (field NOTICE supply). Take the following precautions on refrigerant piping into 2 Place the 2 cables over the outdoor unit. account: 3 Insert a rubber sheet between the cables and the outdoor unit ▪...
6 Installation 6.4.6 Using the stop valve and service port CAUTION Do NOT open the valves before flaring is complete. This would cause refrigerant gas leakage. To handle the stop valve Torque wrench Take the following guidelines into account: Spanner Piping union ▪...
6 Installation Typical workflow To handle the stem cap Checking the refrigerant piping typically consists of the following ▪ The stem cap is sealed where indicated with the arrow. Do NOT stages: damage it. Checking for leaks in the refrigerant piping. Performing vacuum drying to remove all moisture, air or nitrogen from the refrigerant piping.
6 Installation What When Charging additional refrigerant When the total liquid piping length is more than specified (see later). Completely recharging refrigerant Example: ▪ When relocating the system. ▪ After a leak. Charging additional refrigerant Before charging additional refrigerant, make sure the outdoor unit's external refrigerant piping is checked (leak test, vacuum drying).
6 Installation WARNING CAUTION ▪ Do NOT pierce or burn refrigerant cycle parts. To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant. ▪ Do NOT use cleaning materials or means to accelerate the defrosting process other than those recommended Prerequisite: Before charging refrigerant, make sure the refrigerant by the manufacturer.
6 Installation S20 – electronic expansion valve lead wire 6.7.2 Precautions when connecting the S40 – thermal overload relay lead wire electrical wiring S90 – thermistor lead wire S70 – fan motor lead wire INFORMATION Also read the precautions and requirements in the 6.7.3 Guidelines when connecting the electrical following chapters:...
6 Installation 6.7.4 Specifications of standard wiring components Component RXM71N Other Power supply cable Voltage 220~240 V Phase Frequency 50 Hz Wire sizes 3-core cable 3× 2.5mm ~4.0mm 1 2 3 H05RN-F (60245 IEC 57) Interconnection cable 4-core cable 5 Tighten the terminal screws securely. We recommend using a (indoor↔outdoor) Phillips screwdriver.
7 Configuration This mode is only applicable for outdoor units: RXM50+60N and About the compressor indoor units: FTXM. DANGER: RISK OF EXPLOSION INFORMATION ▪ Use a pipe cutter to remove the compressor. The standby electricity saving can ONLY be used for the units described above.
9 Hand-over to the user Prerequisite: Test run may be performed in cooling or heating CAUTION mode. Do NOT insert fingers, rods or other objects into the air Prerequisite: Test run should be performed in accordance with the inlet or outlet. Do NOT remove the fan guard. When the operation manual of the indoor unit to make sure that all functions fan is rotating at high speed, it will cause injury.
11 Troubleshooting WARNING 10.2 Maintenance safety precautions Prevent hazards due to inadvertent resetting of the thermal DANGER: RISK OF ELECTROCUTION cut-out: power to this appliance MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF DANGER: RISK OF BURNING by the utility.
12 Disposal 2 Carry out forced cooling. See "12.3 To start and stop forced LED is… Diagnosis cooling" on page 23. Supply voltage (for power saving). 3 After 5 to 10 minutes (after only 1 or 2 minutes in case of very Power supply fault. low ambient temperatures (<−10°C)), close the liquid stop valve Turn the power OFF and back ON, and with a hexagonal wrench.
13 Technical data Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin extranet (authentication required). 13.1 Wiring diagram The wiring diagram is delivered with the unit, located at the inside of the outdoor unit (bottom side of the top plate).
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Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with product according instructions accompanying documentation.
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