M
P
S
I
R
A
S
220 240
50 z
12000 tu/h
10A
/15A
12000 tu/h
1 A
220 230 0 z
E
W
D
A
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. (
igh temperature protection
mode: when coil temperature of indoor unit reaches
55°C, outdoor unit will turn o 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
R
T3 is coil temperature of outdoor units.
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
eating mode
efrosting mode
Time
Elapsed
(min)
Starting efrosting Mode under condition a.
NOTE
The supply voltage must be consistent with the rate voltage of the air conditioner.
/
or
21000 tu/h
/
220 240
50 z
220 230 0 z
or
32A/25A
ENGLISH
