Si04-115
General Functionality
Main Function
35
1.14
Freeze Protection Function in Cooling
Outline
During Cooling/Dry operation, when the heat exchanger’s temperature falls down excessively,
the capacity supply will be reduced (frequency step down) so as to prevent freeze of the heat
exchanger and the creation of dew on a rotor caused by a excessive capacity supply to the
indoor unit.
Processing
∗
DTO : Freeze protection temperature of heat exchanger
"
The restriction for frequency is not conducted in the return area by means of freeze
protection control.
"
Frequency is increased approximately every 2 Hz/min. in the up-area.
"
Frequency alteration in the steady area is not conducted.
"
Frequency - down is carried out in the step down area approximately every 2 ~ 4 Hz/min..
"
Compressors stop in the stop area. After compressor stops, fan keeps operating in 800 rpm
(LL tap), aiming at rising heat exchanger’s temperature.
Setting a constant
J type
DTO4
15°C
DTO3
8°C
DTO2
7°C
DTO1
5°C
DTO0
0°C
Return
at the descend of
heat exchanger temp.
at the rise of heat exchanger temp.
Return from stop.
DTO0
DTO1
DTO2
DTO3
DTO4
Step down area
Steady area
Stop area
Up-area
(R1920)
Содержание FTK25JV1NB9
Страница 10: ...Si04 115 List of Function 1 Part 1 List of Function 1 Functions 2 1 1 Indoor Unit and Outdoor Unit 2...
Страница 50: ...Si04 115 System Configuration 41 Part 5 System Configuration 1 Instruction 42 1 1 FTK25 35J FTX25 35J 42...
Страница 69: ...Instruction Si04 115 60 System Configuration...
Страница 134: ...Si04 115 For RK25J RK35J RX25J RX35J Removal Procedure 125 2 Slide the MID upward and release Step Procedure Points...
Страница 136: ...Si04 115 For RK25J RK35J RX25J RX35J Removal Procedure 127 4 Remove the fan motor Step Procedure Points...
Страница 145: ...For RK25J RK35J RX25J RX35J Si04 115 136 Removal Procedure...
Страница 146: ...Si04 115 Others 137 Part 8 Others 1 Others 138 1 1 Explanation 138...