Outline of Control (Indoor Unit)
SiBE37-701
148
Function
6.5
Freeze Prevention
Freeze
Prevention by Off
Cycle (Indoor
Unit)
When the temperature detected by liquid pipe temperature thermistor (R2T) of the indoor unit
heat exchanger drops too low, the unit enters freeze prevention operation in accordance with
the following conditions, and is also set in accordance with the conditions given below.
When freeze prevention is activated, the electronic expansion valve is closed, the drain pump
turns ON and the fan tap is fixed to L air flow. When the following conditions for stopping are
satisfied, it returns.
Conditions for starting freeze prevention: Temperature is -1°C or less for total of 40 min., or
temperature is -5°C or less for total of 10 min.
Conditions for stopping freeze prevention: Temperature is +7°C or more for 10 min.
continuously
[Conditions for starting when air flow direction is two-way or three-way]
Conditions for starting: Temperature is 1ºC or less for a total of 15 minutes or 0ºC or less for 1
minute continuously.
–
5
ºC
0
ºC
+
7
ºC
–
1
ºC
t1
t2
t3
t4
0
ºC
+
7
ºC
10 min.
(VG005)
OR
10 min.
10 min.
Freeze prevention operation
Forced OFF by thermostat
Freeze prevention operation
Forced OFF by thermostat
t
>
40
min.
0
ºC
+
7
ºC
10 min.
1 min.
Freeze prevention operation
Forced OFF by thermostat
+
1
ºC
t1
t2
t3
t4
+
7
ºC
10 min.
Freeze prevention operation
Forced OFF by thermostat
OR
t
>
15
min.
Содержание VRV III REYQ10PY1B
Страница 1: ...REYQ8 48PY1B R 410A Heat Recovery 50Hz SiBE37 701 ...
Страница 111: ...Refrigerant Flow for Each Operation Mode SiBE37 701 100 Refrigerant Circuit ...
Страница 252: ...SiBE37 701 Troubleshooting by Remote Controller Troubleshooting 241 ...
Страница 395: ...Piping Diagrams SiBE37 701 384 Appendix 1 Piping Diagrams 1 1 Outdoor Unit REYQ8P 10P 12P 3D058154B S1NPH S2NPL ...
Страница 396: ...SiBE37 701 Piping Diagrams Appendix 385 REYQ14P 16P 3D058153B S2NPL S1NPH ...
Страница 397: ...Piping Diagrams SiBE37 701 386 Appendix REMQ8P 3D057743 ...
Страница 398: ...SiBE37 701 Piping Diagrams Appendix 387 REMQ10P 12P 3D057742 ...
Страница 399: ...Piping Diagrams SiBE37 701 388 Appendix REMQ14P 16P 3D057741 ...
Страница 400: ...SiBE37 701 Piping Diagrams Appendix 389 1 2 Indoor Unit FXFQ P ...
Страница 405: ...Piping Diagrams SiBE37 701 394 Appendix 1 3 BS Unit 4D057985A ...
Страница 414: ...SiBE37 701 Wiring Diagrams for Reference Appendix 403 2 3 Indoor Unit FXFQ20P 25P 32P 40P 50P 63P 80P 100P 125PVEB ...
Страница 415: ...Wiring Diagrams for Reference SiBE37 701 404 Appendix FXZQ20M 25M 32M 40M 50MV1 ...
Страница 416: ...SiBE37 701 Wiring Diagrams for Reference Appendix 405 FXCQ20M 25M 32M 63MV3 ...
Страница 417: ...Wiring Diagrams for Reference SiBE37 701 406 Appendix FXCQ40M 50M 80M 125MV3 ...
Страница 420: ...SiBE37 701 Wiring Diagrams for Reference Appendix 409 FXDQ20M 25MV3 ...
Страница 421: ...Wiring Diagrams for Reference SiBE37 701 410 Appendix FXSQ20M 25M 32M 40M 50M 63MV3 ...
Страница 422: ...SiBE37 701 Wiring Diagrams for Reference Appendix 411 FXSQ80M 100M 125MV3 ...
Страница 447: ...Example of connection SiBE37 701 436 Appendix ...
Страница 453: ...Method of Checking the Inverter s Power Transistors and Diode Modules SiBE37 701 442 Appendix ...
Страница 467: ...SiBE37 701 iv Index ...
Страница 471: ...SiBE37 701 viii Drawings Flow Charts ...