Si18-201
System control
Main Functions
123
3.9
Pre-Equalization Standby Operation
Outline
In local air conditioner control mode and frequency fix mode, this function collects surplus
refrigerant in the receiver before the operation mode is changed from cooling or the compressor
stops due to thermostat OFF.
This ensures proper oil level and dilution for the next startup operation.
This function is also activated before cooling operation starts in units that have not completed
the standby operation.
Details
Heating standby operation
Cooling standby operation
4-way valve
*Command
frequency at power
ON or mode change.
OFF
30Hz
ON
30Hz
Command frequency
62Hz
90sec
90sec
41Hz
Outdoor unit lower fan
775rpm
775rpm
Each room motorized
valve flow rate
715rpm
715rpm
EVP
450 pulses
450 pulses
450 pulses
EVL
0 pulse
EVG
EV
H
EV
N
0 pulse
0 pulse
450 pulses
0 pulse
0 pulse
Standby max. time
Guard timer for thermostat
ON prohibition
Timer for suction overheat
judgement prohibition
70sec
60sec
120sec
70sec
60sec
120sec
Suction overheat judgement
H
Suction pressure judgement
H
H
70sec.~2min. judgement
SH
≥
15 deg
LP
≤
0.098MPa
SH
≥
15 deg
LP
≤
0.098MPa
(M1013)
Outdoor unit upper fan
Summary of Contents for BPMK928B42
Page 9: ...Si18 201 viii Table of Contents ...
Page 71: ...Specifications Si18 201 58 Specifications ...
Page 206: ...Si18 201 Remote Controller Operations 193 1 1 2 FVX25 35KZ ...
Page 207: ...Remote Controller Si18 201 194 Operations 1 1 3 FTXD25 35KZ ...
Page 208: ...Si18 201 Remote Controller Operations 195 1 1 4 FTK FTX50 60H ...
Page 209: ...Remote Controller Si18 201 196 Operations 1 1 5 FTKD FTXD50 60 71J ...
Page 214: ...Si18 201 Remote Controller Operations 201 ...
Page 216: ...Si18 201 Remote Controller Operations 203 ...
Page 217: ...Remote Controller Si18 201 204 Operations ...
Page 237: ...Method of Field Set Si18 201 224 Operating Test ...
Page 262: ...Si18 201 Troubleshooting SkyAir Indoor Unit Service Diagnosis 249 ...
Page 393: ...Wiring Diagrams Si18 201 380 Appendix FHYC35 50 60 71KVE9 3D005668C ...
Page 394: ...Si18 201 Wiring Diagrams Appendix 381 FHYC35 50 60 71KV1C9 ...
Page 395: ...Wiring Diagrams Si18 201 382 Appendix FDYM60 03FAV1 FDYM60 03FAVAL C 3D019816D OPTION ...
Page 396: ...Si18 201 Wiring Diagrams Appendix 383 FDYM60 03FAV1C ...