SiAF332111E
Control for 6/8 HP Outdoor Unit
Part 4 Functions and Control
71
2.5.2 Compressor Control
In order to provide a steady capacity, the compressor capacity is controlled to achieve
temperature Te during cooling operation.
During cooling operation
The compressor capacity is controlled so Te approaches TeS (target value of temperature).
1. VRTsmart Control
When all the connected indoor units are VRTsmart control applicable models
Applicable models: FXFSQ-AR, FXMQ-PB
The required capacity is calculated based on the operation condition of each individual indoor
unit and this data is transmitted to the outdoor unit. The outdoor unit adjusts the refrigerant
temperature of the whole system to an adequate value according to the indoor unit that needs
the most capacity.
In case of target evaporation temperature adjustment, first the capacity is adjusted by changing
the indoor unit airflow to L tap. If the capacity is still too much, the target evaporation
temperature is elevated further to adjust.
2. VRT Control
When one or more of the connected indoor units are not VRTsmart control applicable
models
If the required capacity becomes low in all indoor units (Room temperature Th1 – set
temperature), the target evaporation temperature is elevated further to adjust. In the outdoor
unit, the difference of temperature (∆T) in all indoor units is checked and the set temperature is
changed. Unlike VRTsmart control, there is no airflow control of the indoor units.
3. Te fix Control
The target evaporation temperature is not changed.
Te value (Set in mode 2-8)
Te: Low pressure equivalent saturation temperature (°C)
TeS: Te target value (varies according to Te setting, compressor operation frequency, etc.)
Standard
(Factory setting)
High
6
7
8
9
10
11
Содержание VRV S RXMQ10ARY1
Страница 1: ...Service Manual Cooling Only 50 60 Hz RXQ4 5ARV1 RXMQ6ARV1 RXMQ8 10 12ARY1 SiAF332111E...
Страница 349: ...SiAF332111E Check Part 6 Service Diagnosis 343 PCB and Circuit Diagram U V W L3B L2B L1B P1 P2 N32...
Страница 366: ...SiAF332111E 360 Part 7 Appendix 1 Wiring Diagrams 361 1 1 Outdoor Unit 361 1 2 VRV Indoor Unit 366 Part 7 Appendix...
Страница 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Страница 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Страница 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Страница 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...
Страница 376: ...Wiring Diagrams SiAF332111E 370 Part 7 Appendix 1 2 4 Wall Mounted FXAQ20 25 32PVE FXAQ40 50 63PVER1 C 3D076498B...