Periodical Checks, Type Description Monthly

Periodical Checks

Type	Description	Monthly	Every 4 months	Once a year

	Clean the air filter	(1)

	Clean the condensate drain pan (2)			
Indoor unit
Indoor unit	Thoroughly clean the heat exchanger (2)			

	Clean the condensate drain pipe (2)		

	Replace the remote control batteries			

	Clean the heat exchanger on the outside		
	of the unit (2)		
	of the unit (2)

	Clean the heat exchanger on the inside			
	of the unit (2)			
	of the unit (2)

	Clean the electric components with jets			
	of air (2)			
	of air (2)
Outdoor unit
Outdoor unit	Verify that all the electric components			
	Verify that all the electric components
	are firmly tightened (2)
	are firmly tightened (2)

	Clean the fan (2)			

	Verify that all the fan assembly is firmly			
	tightened (2)			
	tightened (2)

	Clean the condensate drain pan (2)			

The checks and maintenance operations described are essential to guarantee the efficiency of the air conditioner. The frequency of these operations varies according to the characteristics of the area, the amount of dust, etc.

(1)The described operations should be performed more frequently if the area of installation is very dusty.

(2)These operations must always be performed by qualified personnel. For more detailed information, see the Installation Manual.

Protections enabled by the Unit control system

Type of protection		Description	Operation	When it enables

Protection against cold air		The internal fan is off	Heating on	During operation
Protection against cold air		The internal fan is off	heat pump	During operation
			heat pump

Defrost cycle		The internal fan is off	Heating on	During operation
Defrost cycle		The internal fan is off	heat pump	During operation
			heat pump

Anti-frost protection		The compressor is off	Cooling During
of internal battery		The compressor is off	operation
of internal battery			operation

		The start of the	Cooling or Heating	At start-up or during
Delayed start of compressor		The start of the	Cooling or Heating	the selection
Delayed start of compressor		compressor is delayed.	on heat pump	the selection
		compressor is delayed.	on heat pump	of the operating mode
				of the operating mode

CAUTION	If the air conditioner is operating in heat pump mode, it performs several defrost cycles in order
	to remove the frost that may have deposited on the outdoor unit (at low temperatures).

In this case, the internal fan is switched off automatically and restarted only after the defrost cycle is completed.

ENGLISH

E-9

KHEAV, KH(C)EAM, GH(C)EAM, MHFK, MH*FM** specifications

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