Mitsubishi FDUA125VNPWVH - Page 14

'22 • PAC-SM-412
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13
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(a) Cooling
(i) Thermostat is operated with the room temperature control.
(ii)ThermostatisturnedONorOFFrelativetothesettingroomtemperatureasshownbelow.
(iii)ThermostatisturnedONwhentheroomtemperatureisintherangeof-1<Settingroomtemperature<+1atthestart
ofcoolingoperation(includingfromheatingtocooling).
(b) Heating
(i) Thermostat is operated with the room temperature control.
(ii)ThermostatisturnedONorOFFrelativetothesettingroomtemperatureasshownbelow.
(iii)ThermostatisturnedONwhentheroomtemperatureisintherangeof-1<Settingroomtemperature<+1atthestart
ofheatingoperation(includingfromcoolingtoheating).
(c) Fan control during heating thermostat OFF
(i)FollowingfancontrolsduringtheheatingthermostatOFFcanbeselectedwiththeindoorfunctionsettingofthewired
remote control.
①
Low fanspeed(Factorydefault)
②
Set fan speed
③
Intermittence
④
FanOFF
(ii)Whenthe“Lowfanspeed(Factorydefault)”isselected,thefollowingspeedisusedfortheindoorfans.
・ForDCmotor:ULo
(iii)Whenthe“Setfanspeed”isselected,itisoperatedwiththesetfanspeedalsointhethermostatOFFcondition.
(iv)Ifthe“Intermittence”isselected,followingcontrolsareperformed:
1)IfthethermostatisturnedOFFduringtheheatingoperation,theindoorunitmovestothehotcontrolandturnsOFF
theindoorfaniftheheatexchangertemperature sensors(bothThi-R1andR2)detect25°Corlower.
2)IndoorfanOFFisxedfor5minutes.Afterthe5minutes,theindoorfanisoperatedatULofor2minutes.Inthe
meantimethelouveriscontrolledatlevel.
3)AfteroperatingatULofor2minutes,theindoorfanmovestothestateof1)above.
4)IfthethermostatisturnedON,itmovestothehotstartcontrol.
5)WhentheheatingthermostatisturnedOFF,theremotecontroldisplaysthetemperaturedetectedatthefanstopand
revisesthetemperaturelaterwhentheindoorfanchangesfromULotostop.
Theremotecontrolusestheoperationdatadisplayfunctiontodisplaytemperaturesandupdatesvaluesof
temperatureevenwhentheindoorfanisturnedOFF.
6) When the defrost operationstartswhiletheheatingthermostatisturnedOFForthethermostatisturnedOFFduring
defrost operation,theindoorfanisturnedOFF.(Hotkeeporhotstartcontroltakespriority.)However,thesuction
temperatureisupdatedatevery7-minute.
7)WhentheheatingthermostatisturnedONortheoperationischangedtoanothermode(includingstop),thiscontrol
isstoppedimmediately,andtheoperatingconditionisrestored.
(v)Whenthe“FanOFF”isselected,thefanontheindoorunitofwhichthethermostathasbeenturnedOFF,isturnedOFF.
Thesameoccursalsowhentheremotecontrolsensoriseective.
Thermostat OFF
Setting room temperature
Temperature drop
Temperature rise
-1
+1
Thermostat ON
Thermostat OFF
Heater OFF
Temperature drop
Temperature rise
Thermostat ON
Setting room temperature
-1
+1
-1
+1
Heater ON
3
C
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(8) Thermostat operation