Operation Flowcharts SiE-05C
120 Troubleshooting Inverter K Series
Preset temperature
Intake air temperature
a = b = 1 (a = b = 0.5 possible for FXYC, FXYE, FXYF, FXYH, FXYK only.)
Cooling operation
Auxiliary electric heater (52H): OFF
Auxiliary electric heater (52H): OFF
Program dry display: Cancelled Normal operation
Set direction of air flow
Swing flap?
Recycling guard timer
ON (5 minutes)
Program dry on/off? Program dry in operation
Moisture prevention
condions?
Moisture prevention position
Cassette: P1
Suspended :P0
YES
YESNO
OFF
NO
Yes
ON
YES
YES
∗4
∗5
∗6
(Option)
(Option)
NO
Fan M1F operating at set
volume of air flow
Drain-up kit M1P : OFF after 5
minutes residual operation
Frost
prevention operation
in progress?
Test run in progress?
Thermostat status?
(Option)
Drain-up kit Y1E : ON
OFF
(Option)
Drain-up kit M1P : OFF after 5
minutes residual operation
Electronic expansion valve
Y1E : OFF
Thermostat on operation signal to
outdoor unit: Cancelled
Electronic expansion valve Y1E:
Capacity control
Thermostat ON operation signal
to outdoor unit: Output
Drain-up kit M1P : ON
A
(VF022)
NO
NO
∗4 If the evaporator inlet temperature is -5˚C or lower for a total of 10 minutes, or is -1˚C or lower for a
total of 40 minutes, frost prevention operation is initiated. Normal operation resumes when the
temperature is +7˚C or higher for 10 consecutive minutes.
∗5 Thermostat status
∗6 The drain-up kit is standard equipment for models FXYC - H, FXYF, FXYK and FXYS.
SI-05C.BOOK Page 120 Monday, November 6, 2000 4:13 PM
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