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Troubleshooting for Outdoor Unit (25/35 class)
Si21-205
190
Troubleshooting
6.15.5 Installation Condition Check
Check No.7
6.15.6 Discharge Pressure Check
Check No.8
Installation condition check
Normal
Change the position of the air
discharge grille or the
installation location.
Change the position of the air
discharge grille or the
installation location.
Clean the heat exchanger.
Change the installation
location or direction.
Check the outside air
temperature (temperature of air
taken in by the outdoor unit).
(The outside air temperature
shall be 43˚C or lower.)
Check
the allowable
dimensions of the air suction
and discharge
area.
Is
the air flow
blocked by obstacles or
winds blowing in the
opposite direction?
(R1438)
Abnormal
YES
YES
YES
Does
the discharged
air from other outdoor
unit cause an increase of
the suction air
temperature?
NO
NO
NO
Is the heat exchanger
very dirty?
Discharge pressure check
Replace compessor.
Open the stop valve.
Replace the pipe installed at
the site.
Clean.
Replace the compressor.
(R3049)
Not dirty
YES
YES
Dirty
NO
NO
NO
Are the heat exchanger and
air filter dirty?
Is the stop valve open?
Is the
connection pipe deformed?
YES
High
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...