Components; 4-Way Valve; Checking Procedures - Daikin Split Sensira R32 Service Manual

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
(A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D +
(A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C +
(A)RXF20~42D + (A)RXF20~42E
Split Sensira R32
ESIE18-12G – 2023.01
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" [ 47].
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:
Class
Class 20~42
Class 50~71
Is the measured value correct?
Yes
3 |
"3.10 Plate work" [ 4 124].
Action
Perform an electrical check of the 4‑way
valve, see "3.1.1 Checking
4
procedures" [ 47].
Fix or replace the 4‑way valve coil, see
"3.1.2 Repair procedures" [
Resistance
560 Ω ± 5%
1787 Ω ± 10%
Action
Continue with the next step.
Components
4
51].
"3.1.1 Checking
Service manual
47