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Wiring Connection
Models : 07-18
Indoor
Outdoor
7000/9000/18000Btu/h model
12000Btu/h model
Terminal block of indoor unit
Cord clamp
To outdoor unit
To outdoor unit
Terminal block of outdoor unit
To indoor unit
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Electrical Work
■
Defrosting Operation (Available for heating only)
0
-1
-2
-3
-4
-5
1
2
0
5
10 15 20 25 30 35 40 45 50
T3 (°C)
3 min
40 min
Heating mode
Defrosting mode
Time
Elapsed
(min)
Starting Defrosting Mode under condition a.
The supply voltage must be consistent with the rate voltage of the air conditioner.
Model
Power Source
Switch and Fuse rating
Wiring size
7000-12000 Btu/h
220-240V ~ 50Hz
25A
f
1.5 mm
2
220-230V ~ 60Hz
18000 Btu/h
220-240V ~ 50Hz
25A
f
2.5 mm
2
220-230V ~ 60Hz
NOTE
b. Unit has been running at high temperature protection
mode* for 90 minutes. (*High temperature protection
mode: when coil temperature of indoor unit reaches
55°C, outdoor unit will turn off external unit fan but
still keep compressor running).
2. Condition to stop defrosting: Units will switch back to
heating mode when either of the following conditions
is met.
a. Unit has been running at defrosting mode for 10
minutes.
b. T3 > 20°C
Remark:
T3 is coil temperature of outdoor units.
1. Condition to start defrosting: Units will switch to defrosting
mode when either of the following conditions is met.
a. Unit has been running under T3 < 0ºC for 40 minutes
and T3 < -3ºC for 3 minutes.
J355-EN.indd 13
J355-EN.indd 13
1/12/07 3:21:04 PM
1/12/07 3:21:04 PM