Repair Procedures - Daikin altherma 3 M Service Manual

3 | Components
Problem solved?

3.9.2 Repair procedures

To remove the expansion valve coil
Service manual
152
9 When the expansion valve was commanded to open, check the inlet and
outlet of the valve with a contact thermometer or use an expansion valve
stethoscope to see if refrigerant flows through the expansion valve.
Result: Refrigerant MUST flow through the expansion valve.
Is the flow through the expansion valve
correct?
Yes
No
After all checking procedures listed above have been performed:
Is the problem solved?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 If needed, remove any parts or insulation to create more space for the
removal.
2 Cut the tie strap and remove the insulation cap.
a
a Insulation cap
b Expansion valve coil
3 Pull the expansion valve coil to remove it from the expansion valve body.
INFORMATION
It may be needed to turn the expansion valve coil 1/8 turn counter clockwise to
unlock it. Make sure to note the correct orientation (position) of the expansion valve
coil before removal.
Action
Component is OK. Return to the
troubleshooting of the specific error
and continue with the next step.
Replace the expansion valve, see
"3.9.2 Repair procedures" [
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"3.17 Plate work" [
b
EBLA09~16DA + EDLA09~16DA
4
152].
4
230].
Daikin Altherma 3 M
ESIE20-06A – 2021.03