Step 4-8 Performing Final Checks And Trial Operation - Samsung AR TXHZ Series Installation Manual

Installation Inspection and Testing
Error indicator
Display
Communication error between
indoor and outdoor units
Error on indoor temperature sensor
,
Error on indoor heat exchanger
Error on indoor fan motor
,
EEPROM/Option error
,
Refrigerant flow blocking error
Lack of refrigerant (for inverter
models only)
Step 4-8 Performing final checks and
trial operation
WARNING
Stop the unit, disconnect the power, and contact Samsung
technical support if any of the following occurs:
• The unit produces a burning smell or smoke.
• The power cable is hot or damaged.
• The unit is very noisy.
• Any foreign substance, such as water, has entered the
appliance.
• The appliance becomes flooded.
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Error
• Check the cables between the indoor and outdoor units.
See if the power cable or communication cable is crossed.
• Make sure that the indoor temperature sensor is properly
connected.
• Make sure that the evaporator temperature sensor is
properly connected.
• Make sure that the evaporator motor is properly
connected to the board.
• Check for a foreign substance inside the unit that may be
preventing the blower wheel from turning.
• Reset the option codes.
• Make sure that the service valves are completely open.
• Check for any blockage in the refrigerant pipe that
connects the indoor and outdoor units.
• Check for refrigerant leaks.
• Make sure a sufficient amount of refrigerant has been
added for a pipe that is longer than 7.5 m.
• Check for refrigerant leaks between the valve and pipe
connection.
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2
Measures for the installer to take
Check the following:
‐ Strength of the installation site
‐ Tightness of pipe connection to detect gas leak
‐ Electric wiring connection
‐ Heat-resistant insulation of the pipe
‐ Drainage
‐ Grounding conductor connection
‐ Correct operation (Take the following steps.)
Press the (Power) button on the remote control to
check the following:
‐ The indicator on the indoor unit lights up.
‐ The airflow blade opens and the fan gears up for
operation.