Haier 1UH071N1ERG Installation Manual page 18

Use only copper wires.
A main switch or other means for disconnection, having
a contact separation in all poles, must be incorporated
in the fixed wiring in accordance with applicable legislation.
Do not turn on the main switch until all the wiring is
completed.
Make sure to connect power supply cables in normal
phase.
Never squeeze bundled cables into a unit.
Fix cables so that cables do not make contact with the
pipes (especially on high pressure side).
Secure the electrical wiring with cable ties as shown in
the figure in 10.2 .
Make sure no external pressure is applied to the terminal
connectors.
When installing the earth leakage circuit breaker make
sure that it is compatible with the inverter (resistant to
high frequency electrical noise ) to avoid unnecessary
opening of the earth leakage circuit breaker.
As this unit is equipped with an inverter, installing a phase
advancing capacitor not only will deteriorate power factor
improvement effect, but also may cause capacitor
abnormal heating accident due to high-frequency waves.
Therefore, never install a phase advancing capacitor.
CAUTION
Be sure to install the required fuses or circuit
breakers.
10.2. Connecting power supply and inter-unit
wiring
Connect and fix the power supply cable, indoor-outdoor
connection cable as following:
R S T N
Power supply:
380-415V,3N~,
50/60Hz
For three phase power supply models:1UH125P1ERK,
1UH140P1ERK,1UH200W1ERK,1UH250W1ERK,
Power supply cable:
For 1UH125/140P1ERK H05RN-F 5G 2.5mm
For 1UH200/250W1ERK H05RN-F 5G 4.0mm
Indoor and outdoor connection cable:
2
H05RN-F 4G 2.5mm
Outdoor unit
1 2 3
terminal blocks
1 2 3
Indoor unit
terminal blocks
2
L N
Power supply:
1PH,220-240V~,
50/60Hz
L N
Power supply:
1PH,220-240V~,
50/60Hz
For single phase power supply models:
1UH071N1ERG,1UH090N1ERG,1UH105N1ERG,
Power supply cable: H05RN-F 3G 4.0mm
1UH125P1ERG,1UH140P1ERG,1UH160P1ERG
Power supply cable: H05RN-F 3G 6.0mm
Indoor and outdoor connection cable: H05RN-F 4G 2.5mm
Fix the cable with the clip to prevent slide.
Clip
Outdoor-indoor unit
connection cable
Secure the cable to the stop valve attachment plate so
that it does not slide.
When cables are routed from the unit, a protection sleeve
for the conduits (PG-insertions) can be inserted at the
knock-out hole.
When you do not use a wire conduit, be sure to protect
the wires with vinyl tubes to revent the edge of the knock-
out hole from cutting the wires.
Follow the electric wiring diagram for electrical wiring
works.
,
2
,
18
Outdoor unit
1 2 3
terminal blocks
1UH071N1ERG
1 2 3
Indoor unit
terminal blocks
ADH071M3ERG
Outdoor unit
1 2 3
terminal blocks
1UH105N1ERG
1UH125P1ERG
1UH140P1ERG
1UH160P1ERG
1UH071N1ERG
1UH090N1ERG
1 2 3
Indoor unit
terminal blocks
Except ADH071M3ERG
2
2
Power supply cable
2
Clip