Things To Check After Completing The Installation - Samsung KXWD Series Installation Manual

Things to check after completing the installation

1. Before supplying the power, use DC 500 V (AM✴✴✴HXWAF✴) or DC 600 V (AM✴✴✴HXWAJ✴) insulation resistance
tester to measure the power (3 phase: R, S, T) terminal and the outdoor unit grounding.
- Measurement should be over 30 MΩ.
2. Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.
- Single phase 2 wired power supply
L and N terminals: Check the 220 V (AM✴✴✴KXWD✴) between wires.
[AM✴✴✴KXWD✴]
220 V
- R, S, T terminal: Check the 230 V (AM✴✴✴HXWAF✴) or 460 V (AM✴✴✴HXWAJ✴) between wires (R-S, S-T, T-R)
[AM✴✴✴HXWAF✴]
230 V 230 V
230 V
[AM✴✴✴HXWAJ✴]
460 V 460 V
460 V
Never measure the communication terminal since communication circuit may get damaged.
Check for short-circuit of the communication terminal with a general circuit tester.
CAUTION
3. Check if the R-410A indoor units are connected.
L
N
<ELB>
T
S
R
<ELB>
T
S
R
<ELB>
ENGLISH-107