94
Outdoor Unit
2.1.2 Oil return control on heating mode
■
High pressure limit
■
Low pressure limit
■
Oil return operation time : 4 min for running step
■
Starting condition:same as cooling mode
Fan
Main LEV
4 way valve
Subcooling LEV
0 Hz
Full open
On
→
off
min.
Starting
Component
Sub unit
compressor
All off
Hot gas bypass
valve
On
High pressure
control
Full open
Off
min.
Running
On
On
High pressure
control
Base pulse
On
min.
Ending
Off
On
Fan
Off
Starting
Indoor unit
Thermo on unit
LEV
Oil return
pulse
Off
Running
Oil return operation
pulse
Off
Ending
Return to
base pulse
Thermo off unit
LEV
Heating close pulse
Oil return operation
pulse
Heating close pulse
Inv
Compressor
Normal
Pressure
limit
37Hz + 37Hz
90Hz + 90Hz
20Hz + 20Hz
30Hz + 30Hz
80Hz + 80Hz
20Hz + 20Hz
Pressure range
Low pressure
≤
229 kpa
Low pressure
≥
242 kpa
Compressor combination
Refer to combination table
Normal
Pressure range
Low pressure
≤
3189 kpa
Low pressure
≥
3189 kpa
Compressor combination
Refer to combination table
Normal
Function
Содержание ARNU Series
Страница 13: ...Service Manual 13 External Appearance 2 2 Outdoor Units ARUN1008F20 10HP ...
Страница 16: ...16 ...
Страница 17: ...Service Manual 17 Indoor Units ...
Страница 18: ...18 Indoor Unit ...
Страница 30: ...30 Indoor Unit ...
Страница 44: ...44 Indoor Unit ...
Страница 79: ...Service Manual 79 Outdoor unit ...
Страница 88: ...88 Outdoor Unit 5 Wiring Diagrams Wiring Diagrams ...
Страница 112: ...112 Outdoor Unit ...
Страница 113: ...Service Manual 113 Trouble shooting guide ...
Страница 137: ...Service Manual 137 Troubleshooting Guide Resistance measure between phases of compressor ...
Страница 140: ...Troubleshooting Guide 140 Outdoor Unit Check 3 phase rectification diode Measure input power between phases R S R T S T ...
Страница 141: ...Service Manual 141 Troubleshooting Guide Measure input power of one phase R S T Connector of compressor ...
Страница 142: ...Troubleshooting Guide 142 Outdoor Unit Connector of reactor Connectors of 3phase diode ...
Страница 143: ...Service Manual 143 Troubleshooting Guide Connectors of capacitor Check IPM PCB ...
Страница 144: ...Troubleshooting Guide 144 Outdoor Unit Measure current of IPM U V W Measure voltage of IPM P N ...
Страница 149: ...Service Manual 149 Troubleshooting Guide SVC valve Measure resistance on the pressure switch connector ...
Страница 150: ...Troubleshooting Guide 150 Outdoor Unit Pressure switch CHECK VALVE ...
Страница 152: ...Troubleshooting Guide 152 Outdoor Unit Measure power input of outdoor unit ...
Страница 153: ...Service Manual 153 Troubleshooting Guide Measure power input of outdoor unit ...
Страница 156: ...Troubleshooting Guide 156 Outdoor Unit Liquid injection by pass valve ...
Страница 157: ...Service Manual 157 Troubleshooting Guide Measure resistance of LEV coil ...
Страница 158: ...Troubleshooting Guide 158 Outdoor Unit Heater ...
Страница 164: ...Troubleshooting Guide 164 Outdoor Unit Pressure sensor connector High pressure sensor Low pressure sensor ...
Страница 168: ...Troubleshooting Guide 168 Outdoor Unit Measure input power of outdoor unit ...
Страница 172: ...Troubleshooting Guide 172 Outdoor Unit Check main fuse of out door unit ...
Страница 176: ...Troubleshooting Guide 176 Outdoor Unit Fan IPM ...
Страница 178: ...Troubleshooting Guide 178 Outdoor Unit Measure input power of fan main PCB ...
Страница 182: ...Troubleshooting Guide 182 Outdoor Unit 4way valve in the outdoor unit 4way valve connector on the Main PCB ...
Страница 183: ...Service Manual 183 Exploded View Replacement Parts List ...