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Check points after installation
1 Before supplying the power, use DC 500 V insulation
resistance tester to measure the power terminal and
the product grounding.
f 3 phase 4 wires 380 ~ 415 V: R, S, T, N / Single phase:
L, N
f Measurement should be over 30 MΩ.
2 Before supplying the power, use a voltmeter and
phase tester to check the voltage and the phase.
f 3 phase 4 wires 380 ~ 415 V: 380 ~ 415 V between
wires (R-S, S-T, T-R), 220 ~ 240 V between phases (R-N,
S-N, T-N)
CaUtIon
• Do not measure the communication terminal as the
communication circuit of it can be damaged.
• Use common circuit tester on communication
terminal for open/short circuit.
230 V 230 V 230 V
400 V 400 V
400 V
3 phase 4 wires
3 When N phase is not correctly connected to R, S and
T phase, over-voltage protection control will be in
effect and it will cut-off the power of the PCB. Check
the power cable connection of the N phase if the PCB
is not turning on.
DB68-05916A-09_IM_DVM Chiller Outdoor_EU_EN_.indd 61
N
T
S
R
ELB
4 Check the following after the installation is
completed.
• Have you checked the external
surface and the inside of the
product?
• Is there any possibility of short
circuit due to the heat generation
Installation
of the product?
work
• Is the place well-ventilated and
ensures service clearance?
• Is the product fixed securely to
withstand the external force?
• Have you completed the drain test?
• Is the drain pipe properly insulated?
Water pipe
• Is the strainer (50 Mesh) properly
work
installed at inlet of plate type heat
exchanger?
• Are the power cable and
communication cable tightened
firmly on the terminal block within
the rated torque recommendations?
• Have you checked for cross
connection of the power and
communication cables?
Electrical
• Have you performed the grounding
wiring work
work 3 to the product?
• Did you make sure to use 2-core
cable (not multi-core cable) for the
communication cable?
• Is the length of the wire within
allowed range?
• Is the wiring route correct?
• When there's a possibility of
vibration generated from the
option
product, check if the vibration-
isolation frame is correctly installed.
61
English
2022-05-02 오전 9:00:11
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