INSTALLATION MANUAL

7.5 Check after Installation and Operation Test

Check after Installation

Items to be checked

Possible malfunction

 

 

Has it been fixed firmly?

The unit may drop, shake or emit noise.

 

 

Have you done the refrigerant leakage test?

It may cause insufficient cooling(heating)

capacity

 

 

 

Is heat insulation sufficient?

It may cause condensation and dripping.

 

 

Is water drainage satisfactory?

It may cause condensation and dripping.

 

 

Is the voltage in accordance with the rated

It may cause electric malfunction

 

voltage marked on the nameplate?

or damage the product.

 

 

Is the electric wiring and piping

It may cause electric malfunction

connection installed correctly and securely?

or damage the part.

Has the unit been connected to a secure

It may cause electrical leakage.

ground connection?

 

Is the power cord specified?

It may cause electric malfunction

or damage the part.

 

Are the inlet and outlet openings blocked?

It may cause insufficient cooling(heating)

 

capacity.

 

 

Is the length of connection pipes

The refrigerant capacity is not accurate.

and refrigerant capacity been recorded?

 

 

 

Operation Test

Before Operation Test

Do not switch on power before installation is finished completely.

Electric wiring must be connected correctly and securely.

Cut-off valves of the connection pipes should be opened.

All the impurities such as scraps and thrums must be cleared from the unit.

Operation Test Method

Switch on power and press "ON/OFF" button on the wireless remote controller to start the operation.

Press MODE button to select the COOL, HEAT (Cooling only unit is not available), FAN to check whether the operation is normal or not.

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Friedrich MR09C1H, MW12C1H, MW09C1H, MR12C1H manual Check after Installation and Operation Test