Daikin Altherma 3 M - Page 137

3 | Components
Service manual
137
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
VW
U
c Wire terminal U
V Wire terminal V
W Wire terminal W
CAUTION
Before measuring the compressor motor windings resistance, measure the
resistance of the multimeter probes by holding the probes against each other. If the
measured resistance is NOT 0Ώ, this value MUST be substracted from the measured
winding resistance.
4 Measure the resistance between the compressor motor windings U-V, V-W
and U-W.
Result: All measurements MUST be approximately the same.
Unit Compressor Winding resistance value
(at temperature of 20°C)
Single phase unit M1C 0.343Ω ± 5%
Three phase unit M1C 1.16Ω ± 5%
Compressor motor winding
measurements are correct?
Action
Yes Continue with the next step.
No Replace the compressor, see
"3.7.2Repair procedures"[4140].
5 Measure the continuity of the U, V and W wires between the compressor and
the PCB. If no continuity, correct as needed, see "6.2Wiring diagram"[4314].
6 Connect the Faston connectors to the compressor wire terminals U, V and W