26
How to Inspect Just in Case the Below Condition is Satisfied
Outdoor unit display
N/A
Explanation
In Cool mode, Min.100 and Max.480 EEV steps can be controlled.
In Heat mode, Min 250 EEV steps can be controlled.
Reason
• Inappropriate EVA IN/OUT sensor location
• Reversed EEV coil installation
• All or part of the EEV coil detachment
• Excessive additional refrigerant.
1) Self check
Is EVA IN sensor in appropriate
location?
No
Attach the IN sensor between the distributor
and the heat exchanger.
Check the attachment of the sensor.
(Refer to page 16)
Is EVA OUT sensor in appropriate
location?
No
Is EEV coil connected to PBA?
No
Is EEV coil correctly installed?
No
Did you add adequate amount of
additional refrigerant?
No
Change the Control-KIT PBA.
Yes
Yes
Yes
Yes
Attach the OUT sensor behind the
heat exchanger Header.
Check the attachment of the sensor.
10 HP unit has 2 EEVs connected to 2
different sockets in PBA.
5 HP unit has single EEV connected to
single socket in PBA.
(Refer to page 19)
Ensure that EEV coil is correctly
installed in body of EEV.
It may operate in opposite direction when
installed in reversed position.
(Refer to page 19)
Add adequate amount of refrigerant.
(Refer to Outdoor Technical Data Book)
Yes
TROUBLESHOOTING
(Continued)
MXD-A16K1X025A_E_31836-1.indd 26
2010-03-12 ｿﾀﾈﾄ 12:43:07
