2-9
2-8
2. Processes and functions
1
•
•
•
•
•
2
3
Defrost control
Defrost sequence
Heating operation
(25-minute mask)
Frost detection
Defrost start
(reverse cycle defrost)
Defrost in progress
Defrost cancel
Start-up operation
Operating frequency: 61.8 Hz
Outdoor unit fan: OFF
Electronic control valve: step 300
4-way valve: OFF
Indoor unit fan: OFF
Defrost control
(1) Frost detection
1. Outdoor heat exchanger temperature (C1) method (15-minute mask after operation start)
2. Outdoor air temperature is 7°F or above and outdoor heat exchanger temperature (C1) of 0°F or below is
detected continuously for 20 seconds.
3. Outdoor air temperature is below 7°F and outdoor heat exchanger temperature (C1) of below (outdoor air
temperature -10°F) is detected continuously for 20 seconds.
(2) Defrost cancel
•
Defrost end conditions
1. Outdoor heat exchanger temperature (C1) rises to 54°F or higher.
2. Outdoor heat exchanger temperature is 45°F or higher continuously for 1 minute.
3. Defrost time of 10 minutes has elapsed.
(3) Startup operation
After defrost ends, the compressors and outdoor unit fan stop for approximately 40 seconds, then operation
begins in heating mode.
2
SM830203-04.indb 8
15/10/15 11:03:37
Summary of Contents for U-26PE1U6
Page 8: ...vii MEMO...
Page 77: ...1 69 1 Specifications 1 4 Dimensional Data Outdoor Unit U 42PE1U6 U 42PS1U6 1...
Page 218: ...2 12 MEMO...
Page 219: ...3 1 3 2 Indoor Units 3 2 Outdoor Units 3 14 3 ELECTRICAL DATA 3 1 3...
Page 220: ...3 2 3 Electrical data 3 1 Indoor Units Concealed Duct Type S 26PF2U6 S 36PF2U6 3...
Page 221: ...3 3 3 Electrical data 4 Way Cassette Type S 26PU1U6 S 36PU1U6 S 42PU1U6 3...
Page 222: ...3 4 3 Electrical data 4 Way Cassette Type S 26PU1U6 S 36PU1U6 S 42PU1U6 3...
Page 223: ...3 5 3 Electrical data Wall Mounted Type S 26PK1U6 3...
Page 224: ...3 6 3 Electrical data Wall Mounted Type S 26PK1U6 3...
Page 225: ...3 7 3 Electrical data Ceiling Type S 26PT1U6 S 36PT1U6 S 42PT1U6 3...
Page 226: ...3 8 3 Electrical data Ceiling Type S 26PT1U6 S 36PT1U6 S 42PT1U6 3...
Page 227: ...3 9 3 Electrical data Low Silhouette Ducted Type S 26PF1U6 S 36PF1U6 3...
Page 228: ...3 10 3 Electrical data Low Silhouette Ducted Type S 26PF1U6 S 36PF1U6 3...
Page 230: ...3 12 3 Electrical data Wall Mounted Type S 26PK2U6 3...
Page 232: ...3 14 3 Electrical data 3 2 Outdoor Units U 26PE1U6 3...
Page 233: ...3 15 3 Electrical data U 26PE1U6 3...
Page 234: ...3 16 3 Electrical data U 26PS1U6 3...
Page 235: ...3 17 3 Electrical data U 26PS1U6 3...
Page 236: ...3 18 3 Electrical data U 36PE1U6 3...
Page 237: ...3 19 3 Electrical data U 36PE1U6 3...
Page 238: ...3 20 3 Electrical data U 36PS1U6 3...
Page 239: ...3 21 3 Electrical data U 36PS1U6 3...
Page 240: ...3 22 3 Electrical data U 42PE1U6 3...
Page 241: ...3 23 3 Electrical data U 42PE1U6 3...
Page 242: ...3 24 3 Electrical data U 42PS1U6 3...
Page 243: ...3 25 3 Electrical data U 42PS1U6 3...
Page 244: ...MEMO 3 26...
Page 284: ...5 24 MEMO...
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