Panasonic R410A User Manual

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PRECAUTIONS REGARDING TEST RUN
Check Before Test Run
Content check
Power supply cable
Indoor/outdoor connection wire
Earth wire
● Is the wire set up and connected as described in the instructions? Check for any phase
sequence.
● Are the wire connection’s screws loose?
● Is the open and close device / leakage breaker installed?
● Is the power supply cable’s thickness and length appropriately measured as described in
the instructions?
● Is it earthed (grounded)?
● Check that the insulation resistant value is more than 1 MΩ.
Use the 500 V mega-testers to measure the insulation.
Do not use the mega-tester for any other circuit except for voltage of 220 V to 240 V.
● Are the wire connections for the indoor/outdoor units connected as described in the
instructions? Are there any looped wires?
Refrigerant pipe
● Is the piping installed as described in the instructions?
● Are the pipes sizes appropriate?
● Does the pipe’s length adhere to the specifications?
● Is the branch pipe slant being appropriately done as described in the instructions?
● Was vacuum removal sufficiently carried out?
● Was the leak tightness test carried out with nitrogen gas? Use the testing pressure of
3.8 MPa.
● Is the piping insulation material appropriately installed? (Insulation material is necessary for
both gas and liquid piping.)
● Is the 3-way valve for the liquid side and gas side open?
●
Always be sure to use a properly insulated tool to operate the short-circuit pin on the circuit board. (Do not use your finger.)
●
Never switch the power supply ON until the installation has completed.
●
Supply electrical current through all indoor units and check the voltage.
●
Supply electrical current through all the outdoor units and check each inter-phase voltage.
●
Before the test run, ensure to check that the 3-way valve is open. Operating while the valve is closed causes the compressor to
fail.
Test Run Procedure
●
If there are duplicated system addresses, or if the settings for the Nos. of the indoor units are not consistent, an alarm will occur
and the system will not start.
●
Switch on both indoor and outdoor unit.
●
Short-circuit CHK pin on the outdoor main PCB.
Do not remove CHK pin until test run is completed.
Removing CHK pin stops test run.
●
Short-circuit RUN pin on the outdoor main PCB for one second or longer.
Factory setting is cooling operation mode and cooling operation test run starts.
If heating operation starts, short-circuit both right side and centre of the MODE pin (centre and COOL) for one second or longer.
●
Ensure to conduct a test run. In addition, be sure to run the cooling operation test run for at least 20 minutes before starting the
heating operation test run.
●
To conduct heating operation test run, short-circuit left side and centre of the MODE pin (centre and HEAT) for one second or
longer.
●
Removing CHK pin’s short-circuit stops test run.
●
For the test run using remote controller please see Installation Instructions included with the remote controller.
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Panasonic R410A Specifications

General

Brand	Panasonic
Model	R410A
Category	Air Conditioner
Language	English