Daikin GYEQ20AN, Руководство по обслуживанию

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SiAUY361411EA Flow Charts for Troubleshooting
Troubleshooting 130
3
Unit Runs But Does Not Heat
Flow chart
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Change Temperature
Set-Point.
Check Failure Bypass
Control Conditions.
See “Standard Operation
Data List.”
Four-way valve/SV inspection
Check EVs and SVs.
Check Recharged
Refrigerant Amount.
Replace thermostat components
Replace water motor valve
Check Indoor Unit Fans.
Check Cables For Defects.
Check Pipes.
Unit Runs But Does Not Heat
Is Remote Control Heating
Temperature Set-Point Higher
Than Room Temperature?
Are You Sure
Failure Bypass Control
Is Not Activated?
Is Compressor
Intake/Discharge Pressure
Normal?
Is the four-way valve
operating normally?
Are the SV3A-3F and SV31
operating normally?
Are Outdoor Unit EVs and SVs
Operating Normally?
Is Recharged Refrigerant
Amount Proper?
Is the thermostat
operating normally?
Is the water motor valve
operating normally?
Are Indoor Unit Fans
Operating Normally?
Is the wiring between the
outdoor unit/indoor unit/BS unit
operating normally?
Is the piping between the
indoor unit/indoor unit/BS
unit operating normally?
YES
YES
NO
Check the external filter.
025863-00EN02
Is the external filter free
of defects?
Please contact your Daikin
(Yanmar) representative if you
can not find the cause even
after you have checked all the
items down to the bottom of
the flowchart.