Daitsu FMCD*ECM series - Page 29

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SK2014‐SON‐002‐TechMnl‐FMCD‐003
HEATMODE

WithoutElectricalHeater
a) MTV1,AUX2andelectricheaterarealwaysoff.
b) IfTr≤Ts‐1ºC(or‐4ºCifeconomycontactisactivated),thenheatoperationisactivated
andMTV2andAUX1areturnedon.Indoorfanrunsatthesetspeed.
c) IfTr>Ts,
thenheatoperationisterminated andMTV2andAUX1areturnedoff.Indoorfan
runsat200RPM.
d) TherangeofTsis16‐30ºC.
e) Indoorfanspeedcanbeadjustedtolow,medium,highandauto.
f) Whenturnedon,MTV2requires30secondsbeforeitisfullyopen.

g) Whenturnedoff,MTV2requires120secondsbeforeitisfullyclosed.

WithElectricalHeaterasBooster
a) MTV1andAUX2arealwaysoff.
b) If Tr≤Ts‐1ºC (or – 4ºC if economycontact is activated),thenheat operation is activated
andMTV2andAUX1areturnedon.Indoor
fanrunsatthesetspeed.
c) IfTr>Ts,thenheatoperationisterminatedandMTV2andAUX1areturnedoff.Indoorfan
runsat200RPM.
d) IfTi1<40ºC,thentheelectricalheateristurnedon.If40ºC≤Ti1<45ºC,thentheelectrical
heatermaintainitsoriginalstate.IfTi1≥45ºC,thentheelectricalheateristurnedoff.
e) TherangeofTsis16‐30ºC.
f) Indoorfanspeedcanbeadjustedtolow,medium,highandauto.
g) Whenturnedon,MTV2requires30secondsbeforeitisfullyopen.
h) Whenturnedoff,
MTV2requires120secondsbeforeitisfullyclosed.

PRE‐HEAT

WithoutElectricalHeater
a) IfTi1<36ºC[or28ºCdependingonDIPsetting],thenMTV2andAUX1areturnedon.Indoor
fanrunsat200RPM.
b) IfTi1≥38ºC[or30ºCdependingonDIPsetting],thenMTV2and
AUX1areturnedon.Indoor
fanrunsatsetspeed.
c) If indoor coil temperature sensor is damaged, then the pre‐heat time is set for 2 minutes.
Indoorfanrunsatsetspeed.

Pre‐heatwithElectricalHeater
a) MTV2andAUX2areturnedon.
b) Iftheindoor
fanspeed≥300RPM,thentheelectricalheaterwillturnon.

POST‐HEAT
WithoutElectricalHeater

a) IfTi2≥38ºC,thenMTV2andAUX1areturnedoff.Indoorfancontinuestorunatsetspeed.
b) If 36F≤Ti2≤38F, then MTV2 and AUX1 are turned off. Indoor
 fan maintain its original
state.
c) IfTi2<36ºC,thenMTV2andAUX1areturnedoff.Indoorfanrepeatedlyrunsfor30seconds
andthenstopsfor3minutes.
d) If the indoor coil temperature sensor is damaged, then the post‐heat time is set for 3
minutes.Indoor
fanrunningatsetspeed.

WithElectricalHeater
a) Indoorfanrunsat200RPMaftertheunithasbeenturnedofffor20seconds.
