Inspecting The Check Valve - Daikin GYEQ20AN Service Manual

SiAUY361411EA
∗ This model is slightly different from other models, but there is no significant difference

1.28 Inspecting the Check Valve

1. While the unit is running, check if a temperature difference exists between points A and B in
2. When a slight amount of refrigerant is leaking, frost may be observed upstream and
Parts Inspection
regarding the measuring points.
the pipe when the pipe internal pressure is lower at point A than at point B. If there is no
temperature difference, chances are that refrigerant is leaking.
downstream of the check valve.
T1
EV4
040430-00X00
A B
023463-00X
Inspecting the Outdoor Unit
EV1
T2
194