Table of Contents
Advertisement
3
|
Components
3 Components
3.1 4-way valve
3.1.1 Checking procedures
To perform a mechanical check of the 4-way valve
To perform an electrical check of the 4-way valve
Service manual
46
CAUTION
When replacing a component ALWAYS make sure the correct spare part for your unit
is installed.
INFORMATION
It is recommended to perform the checks in the listed order.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see
DANGER: RISK OF BURNING/SCALDING
The coil gets hot while energized. Wait for it to cool down.
2 Verify that the screw is firmly fixing the coil to the valve body.
3 Check if any damage or burst is present.
Is the 4‑way valve coil firmly fixed and
not visually damaged?
Yes
No
1 First perform a mechanical check of the 4-way valve, see
4
procedures" [
46].
2 Unplug the 4-way valve connector from the appropriate PCB.
3 Measure the resistance of the 4-way valve coil between the pins of the 4-way
valve connector.
Result: The measured value must be 46 Ω ± 10%.
Is the measured value correct?
Yes
No
4
"3.10 Plate
work" [
100].
Action
Perform an electrical check of the 4‑way
valve, see
"3.1.1 Checking
4
procedures" [
46].
Fix or replace the 4‑way valve coil, see
"3.1.2 Repair
procedures" [
Action
Continue with the next step.
Replace the 4‑way valve coil, see
"3.1.2 Repair
procedures" [
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
4
49].
"3.1.1 Checking
4
49].
Split Comfora R32
ESIE18-01D – 2022.02
Advertisement
Table of Contents
Troubleshooting
