Si18-201
System control
Main Functions
149
"
In case of KBPIW 1.5
≤
FPIMN / initial frequency
When initial frequency is equal or smaller than FPIMN / 1.5 = 0.67,
EVL = 52
EVG = 450
EVP = 267 × KBP - 349
The ending condition for startup control and the control when the number of operating room unit
changes,
Cooling mode
DO > DE > 36°C
Heating mode
DO > DGMNT - 5 > DCMXT > 29°C
3.26.4 Outdoor Unit Motorized Valve Control During High Discharge Pipe
Temperature
Outline
When the discharge pipe temperature exceeds a certain level during compressor operation, this
function opens the motorized valve to return the refrigerant to a low pressure side in order to
cool the compressor with refrigerant and lower the discharge temperature.
Details
Motorized valve operation in drooping zone
Motorized valve is operated every 20 seconds.
Outdoor motorized valves
Receiver function ON or EVN in fully open condition
#
Normal cooling operation
EVG = EVG + 5 pulses
EVL = EVL + 5 pulses
#
Normal heating operation
EVG = EVG - 5 pulses
EVL = EVL + 5 pulses
BP motorized valve
Regardless of receiver function ON/OFF
#
Normal cooling operation
Open the motorized valve in operating room unit for 5 to 30 pulses.
#
Normal heating operation
Open the motorized valve in connecting room unit for 5 to 30 pulses.
Drooping zone
Reset zone
105
103
(M1044)
Discharge temperature
Содержание BPMK928B42
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Страница 71: ...Specifications Si18 201 58 Specifications ...
Страница 206: ...Si18 201 Remote Controller Operations 193 1 1 2 FVX25 35KZ ...
Страница 207: ...Remote Controller Si18 201 194 Operations 1 1 3 FTXD25 35KZ ...
Страница 208: ...Si18 201 Remote Controller Operations 195 1 1 4 FTK FTX50 60H ...
Страница 209: ...Remote Controller Si18 201 196 Operations 1 1 5 FTKD FTXD50 60 71J ...
Страница 213: ...Remote Controller Si18 201 200 Operations 1 1 9 FHYC35 50 60 71K Optional Accessory BRC7C612WC ...
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Страница 217: ...Remote Controller Si18 201 204 Operations ...
Страница 234: ...Si18 201 Method of Field Set Operating Test 221 2 3 Interface Adaptor for Room Airconditioner KRP928A1S ...
Страница 237: ...Method of Field Set Si18 201 224 Operating Test ...
Страница 262: ...Si18 201 Troubleshooting SkyAir Indoor Unit Service Diagnosis 249 ...
Страница 393: ...Wiring Diagrams Si18 201 380 Appendix FHYC35 50 60 71KVE9 3D005668C ...
Страница 394: ...Si18 201 Wiring Diagrams Appendix 381 FHYC35 50 60 71KV1C9 ...
Страница 395: ...Wiring Diagrams Si18 201 382 Appendix FDYM60 03FAV1 FDYM60 03FAVAL C 3D019816D OPTION ...
Страница 396: ...Si18 201 Wiring Diagrams Appendix 383 FDYM60 03FAV1C ...