Operating Tips

Operation and Performance

*Heating Performance

This air conditioner operates on the heat-pump principle, absorbing heat from outdoor air and transferring that heat indoors. As a result, the operating performance is reduced as outdoor air temperature drops. If you feel that insufficient heating perfomance is being produced, we recommend you use this air conditioner in conjunction with another kind of heating appliance.

*Microcomputer-controlled Automatic Defrosting

When using the Heating mode under conditions of low outdoor air temperature high humidity, frost may form on the outdoor unit, resulting in reduced operating performance.

In order to prevent this kind of reduced performance, this unit is equipped with a Microcomputer-controlled Automatic Defrosting function. If frost forms, the air conditioner will temporarily stop, and the defrosting circuit will operate briefly (for about 7 to 15 minutes).

Heat-pump air conditioners heat your entire room by recirculating air throughout the room, with the result that some time may be required after first starting the air conditioner until the room is heated.

Instructions relating to heating (*) are applicable only to "HEAT & COOL TYPE".

Temperature and Humidity Range

During Automatic Defrosting operation, the OPERATION Indicator Lamp will flash.

*Trouble alarming performance

Only for series 28,42

During operation, when there is any trouble, the power indicator lamp will flash.

	indoor	max C D.B/W.B	32/23
Cooling	indoor	min C D.B/W.B	18/14
Cooling		min C D.B/W.B	18/14

	outdoor	max C D.B/W.B	43/26
	outdoor	min CD.B	18
		min CD.B	18

	indoor	max CD.B	27/-
	indoor	min C D.B	20/-
		min C D.B	20/-
Heating
Heating	outdoor	max C D.B/W.B	24/18
	outdoor	min CD.B/W.B	-7/-8
		min CD.B/W.B	-7/-8

If the air conditioner is used under higher temperature condition than those listed, the built-in protection circuit may operate to prevent internal circuit damage. Also, during Cooling and Dry modes, if the unit is used under conditions of lower temperature than those listed above, the heat-exchanger may freeze, leading to water leakage and other damage.

Do not use this unit for any other purposes except for the Cooling, (*) Heating, Dehumidifying, and air-circulation of rooms in ordinary dwellings.

The wiring method should be in line with the local wiring standand.

The waste battery should be disposed properly.

If the fuse on PC board is broken, please change it with the type T 3.15A/250V. The indoor unit installation height is at least 2.5m, only for series 42.