Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 71

Outdoor Unit
2.3.7 Heating 4 (Defrosting Operation)
M1C
Compressor
[INV]
Outdoor unit fan M1F
Indoor unit fan MF
Electronic
expansion valve Y1E
(main)
Electronic
expansion valve Y2E
(subcooling)
Four way ralve Y3S
Solenoid valve for
venting receiver Y2S
gas
Solenoid valve for
Y1S
hot gas
Remarks
60
"Details of defrost control", "Defrost completion judgment control"
"Before defrosting
(2 minutes)"
"Defrost control" "Defrost control"
"Outdoor unit fan control" OFF
"Defrost control" "Defrost control"
"Defrost control" "Defrost control"
0 0
ON OFF
"Defrost control time
ON
chart"
"Defrost control time
ON
chart"
Compressor in operation
Basic operation
"During defrosting" After defrosting
"Defrost control"
"Defrost control"
"Defrost control"
"Defrost control"
0
ON
"Defrost control time
chart"
"Defrost control time
chart"
SiBE26-701
Protection control
"Low pressure protection
control"
"High pressure protection
control"
"High pressure protection
control (cooling)"
"Discharge pipe
temperature protection
control"
"Inverter current
protection control"
"Control by inverter fin
temperature"
"Low differential pressure
low compression ratio
protection"
"Discharge pipe
temperature protection
control"
"Low pressure protection
control"
Function and Operation