Daikin FXYBP20K7V1, Service Manual

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Operation Flowcharts SiE 00-07
114 Troubleshooting R-407C PLUS Series
Heating operation
Drain kit (M1P): OFF
Swing flap
Defrost/Hot start display: OFF
Air flow direction setting
Swing flap?
Defrost operation
in progress?
Hot start in progress?
Recycling gurad timer
ON (5 minutes)?
Test run in progress?
Thermostat status?
Defrost/Hot start display: ON
Auxiliary electric heater
(K1R): OFF
Humidifier (Hu): OFF
Fan M1F : LL operation
Auxiliary electric heater
(K1R): OFF
Humidifier (Hu): ON Auxiliary electric heater
(K1R): ON
Humidifier (Hu): ON
Fan M1F : Operating
at set air flow volume Fan M1F : L
operation
Fan M1F : OFF
Electronic expansion
valve Y1E
capacity contorol
Electronic expansion valve
Y1E : capacity contorol
Electronic expansion
valve Y1E :open
Auxiliary electric heater
(K1R): OFF
Humidifier (Hu): OFF
NO
NO
NO
YES
YES
NO
YES
YES
∗
13
∗
12
∗
14
∗
15
∗
12
NO
Thermostat status?
Yes
NO
Option Option Option Option
A
(VF025)
∗
12 Air flow direction
Air discharge is 100% horizontal when heating operation is turned off by thermostat.
∗
13 Hot start
Hot start is carried out when operation starts or defrosting is complete, and condenser inlet
temperature exceeds 34˚C, or 3 minutes elapses, or when Tc > 52˚C.