Daikin Skyair FHC35K Service Manual page 61

Operation Flowchart (RY71 - 140K)
Note: For items indicated with reference section numbers 5.2.1 through 5.2.19, see the explanation of outdoor
unit functions detail on pages 65 through 72.
50
∗1 (Continued)
Is outside heat
YES
exchanger temperature
high?
NO
Low outside temperature
control in cooling operation
(See Section 5. 2. 15.)
Is indoor unit
YES
under freeze prevention
control?
NO
Optimal discharge pipe
Thermostat OFF
temperature control
(See Section 5. 2. 4.)
∆Tr=[Indoor unit
YES
suction temperature] –
[Remote controller preset
temperature]≤0
Thermostat OFF
NO
Operation stop
YES
using remote controller
(See Section
5. 2. 2.)
NO
C D
High pressure protection
control in cooling operation
(See Section 5. 2. 12.)
Thermostat OFF
(See Section (See Section
5. 2. 2.) 5. 2. 2.)
B B
(See Section
5. 2. 2.)
B
∗2 (Continued)
Discharge pipe high
temperature thermostat
OFF control
(See Section 5. 2. 6.)
Is EV opening
appropriate in
YES
thermostat OFF?
(See Section
5. 2. 8.)
Gas Shortage Error Indication
Is cumulative
NO
retry total 6?
(See Section
5. 2. 5.)
YES
Error Indication Thermostat OFF
(See Section
5. 2. 2.)
A
Explanation of Function Operation
Si-71A
B
(SF028)