Filter
Top Products
(2) Check if water drainage is smooth after installation.
Charge, through air outlet or inspecting hole, 1200ccd water to see water drainage.
(Just take HBU-28HH03 for example. For HBU-42CH03, HBU-42HI03, HBU-48CH03 there is no
inspecting hole).
After wiring
Remove cover of control box, short connect
"CHECK" terminal of the indoor unit, which
is on the uper part of indoor unit PCB.
Connect 1PH power to terminal 1 and 2 on
terminal block.
Note: In this operation, fan will be running.
Upon confirmation of a smooth water
drainage, be sure to cut off power supply and
remove short connection of "CHECK"
terminal.
Check water drainage in cooling operation.
See also test run.
Method of water charging
Charge water from
air outlet
Charge water from
inspecting hole
Watering can of plastic
pipe should be about
100 mm long
100mm
Water drainage port for
maintenance
(Drain water from
this hole)
Self-provided stiff pipe
Inspecting hole
NOTE: L,N and 1,2 are equal on the terminal block.
When wiring is not complete
21
Wiring diagram
HBU-42CI03
HBU-36HH03
HBU-42CH03
HBU-42HI03
HBU-48CH03
HBU-48CK03
1 2 3
Outdoor unit terminal block
Indoor unit terminal block
W B R Y/G
Power supply
10
HBU-28CH03
3N~,380-400V,50Hz
RS T 123
Y/G
N
Y/G
Outdoor unit terminal block
Indoor unit terminal block
Power supply
1 2 3 L N
Y/G Y/G
Y/G
1PH,220-230V~,50Hz
Y/G
1 2 3
W B R
W B R W B
HBU-28HH03
Power supply
Outdoor unit terminal block
W B
Indoor unit terminal block
W B R
1 2 3 4 5
1 2 3 4 5
L N
W B R BR GR
Y/G
Y/G
Y/G
Y/G
Y/G
1PH,220-230V~,50Hz
Y/G
HBU-48HJ03
RS TN
1
2
3
123
Outdoor unit terminal block
Indoor unit terminal block
Power supply
3N~,380-400V,50Hz
Y/G
Y/G
Y/G
Installation Procedure