ENGLISH
14
L
L
N
N
LL
N
N
L
L
N
N
LL
N
N
L
L
N
N
LL
N
N
LL N
N
L N
Indoor Unit
A1 Unit
A2 Unit
B Unit
A1
A2
B
Outdoor Unit
Power Supply
220-240 V~ 50Hz
Power Supply
220-240 V~ 50Hz
Power Supply
220-240 V~ 50Hz
Power Supply
220-240 V~ 50Hz
1
4
3
2(N)
1
4
3
2(N)
1
4
3
2(N)
1
4
3
2(N)
2(N)
1
3
4
1
4
3
2(N)
■
Electrical Work
■
Defrosting operation (Available for heating only).
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<0
o
C for 40 minutes
and T3<-3
o
C for 3 minutes.
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
o
C
Remark:
T3 is coil temperature of outdoor units.
NOTE
The supply voltage must be consistent with the rate voltage of the air conditioner.
0
-1
-2
-3
-4
-5
1
2
0
5
10 15 20 25 30 35 40 45 50
T3 (°C)
3 min
Time
Elapsed
(min)
Starting Defrosting Mode under condition a.
40 min
Model : HMHB 18-21
Model : HMHB 27-30
Model
Power Source
Power Switch and
Wiring size
Fuse rating
18 (R22)
220-240V ~ 50Hz
3.9x2A
3x2.5 mm
2
21 (R22)
220-240V ~ 50Hz
4.4+6.1A
3x2.5 mm
2
27 (R22)
220-240V ~ 50Hz
8.3A
3x2.5 mm
2
18 (R407C)
220-240V ~ 50Hz
4.6x2A
3x2.5 mm
2
21 (R407C)
220-240V ~ 50Hz
5+6A
3x2.5 mm
2
27 (R407C)
220-240V ~ 50Hz
4.6x3A
3x2.5 mm
2
30 (R407C)
220-240V ~ 50Hz
8.2+5.8A
3x2.5 mm
2
18 (R22)
220-240V ~ 60Hz
4.4x2A
3x2.5 mm
2
24 (R22)
220-240V ~ 60Hz
5.8x2A
3x2.5 mm
2
27 (R22)
220-240V ~ 60Hz
6.6+5.0A
3x2.5 mm
2
L
N
L
N
Indoor Unit
B Unit
B
Outdoor Unit
Power Supply
220-240 V~ 50Hz
1
4
3
2(N)
1
4
3
2(N)
L
N
L N
L N
A Unit
A
Power Supply
220-240 V~ 50Hz
Power Supply
220-240 V~ 50Hz
2(N)
1
3
4
1
4
3
2(N)
L
N
J222
24/06/2005, 10:45 AM
14
