Table of Contents
Advertisement
(ii) Regardless of the setting temperature, the cooling or heating operation mode is judged according to the "Judgment based
on Room temperature/Cooling or Heating and Outdoor temperature/Cooling or Heating".
1) In case of "Room temperature/Cooling < Indoor return air temperature" and "Outdoor temperature/Cooling < Outdoor air
tem perature" ⇒ Operation mode: Cooling
2) In case of "Room temperature/Heating > Indoor return air temperature" and "Outdoor temperature /Heating > Outdoor air
tem perature" ⇒ Operation mode: Heating
3) The outdoor air temperature of the above judgment conditions is sampled at every 10 minutes.
4) In the range where the above cooling and heating zones are overlapped ⇒ Forced thermostat OFF
(2)
Operations of functional items during cooling/heating
Operation
Thermostat
Functional item
Compressor
4-way valve
Outdoor unit fan
Indoor unit fan
(3)
Drain pump
Notes (1)
: Operation
(2) ON during the drain motor delay control.
(3) Drain pump ON setting may be selected with the indoor unit function setting of the wired remote control.
(3)
Dehumidifying (DRY) operation
Return air temperature thermistor [Thi-A (by the remote control when the remote control thermistor is enabled)] controls the
indoor temperature environment simultaneously.
(a)
Operation is started in the cooling mode. When the difference between the return air temperature and the setting
temperature is 2°C or less, the indoor fan tap is brought down by one tap. That tap is retained for 3 minutes after changing
the indoor fan tap.
(b) If the return air temperature exceeds the setting temperature by 3°C during dehumidifying operation, the indoor fan tap is
raised. That tap is retained for 3 minutes after changing the indoor fan tap.
(c)
If the thermostat OFF is established during the above control, the indoor fan tap at the thermostat ON is retained so far as
the thermostat is turned OFF.
Room temperature/Cooling
30
28
26
Forced thermostat OFF
24
22
Forced thermostat
OFF
20
18
16
Heating
14
12
12
14
16
18
Indoor return air temperature (℃)
Cooling
Fan
Thermostat
ON
OFF
(2)
(2)
: Stop
/ : Turned ON/OFF by the control other than the room temperature control.
Room temperature/Heating
Cooling
Forced thermostat
OFF
20
22
24
26
28
30
Heating
Thermostat
Thermostat
ON
OFF
/
/
/
(2)
58
–
–
'16 • PAC-T-251
'17 • KX-T-264
Outdoor temperature/Heating
Outdoor temperature/Cooling
Dehumidifying
Hot start
(Defrost)
/
( )
( )
/
/
/
Thermostat ON:
(2)
Thermostat OFF:
Advertisement
Table of Contents
Troubleshooting
