Midea MCH4U-36PHH2 User Manual

20
2) If the compressor cumulative running
time reaches 35 minutes and T3< TCDI2
and T3＋T30SUBT3TWO≦T30.
3) If the compressor cumulative running
time reaches 40 minutes and T3< -24C for 3
minutes.
4) If the compressor cumulative running
time reaches 120 minutes and T3<-15℃.
Defrost Stop Conditions
If any one of the following conditions is
satisfied, defrosting ends and the unit
returns to normal heating mode:
----T3 rises above than TCDE1℃.
----T3 remains at TCDE2℃ or above for 80
seconds.
----The machine runs for 10 consecutive
minutes in defrosting mode.
Defrosting Action：
off on
Cool-F9
10S
30S
TimeA
10S
4-way valve
defrosting Defrosting over
compressor
Indoor fan
Outdoor fan
EXV open
frequency
Max 10 minutes
frequency
Compressor stops
off
Anti-cold control
off
480P 480P for 240s
Condition of ending defrosting:
If any one of following items is satisfied,
defrosting will stop and the machine will turn
to normal heating mode.
① T3 > TempQuitDefrost_ADD ℃;.
② The defrosting time achieves 10min.
③ Turn to other modes or off.
6.4.3 Outdoor Fan Control
6.4.3.1 Cooling Mode
Under normal operating conditions, the
system chooses the running fan speed
according to the ambient temperature:
O
utdoor temperature
℃
45
43 Supper high fan speed
28
26 High fan speed
25
23 Middle fan speed
22
20 Low fan speed
19
17 Supper low fan speed
10
9 Breeze fan speed
0
-1 F fan speed
-5
-6 G fan speed
-10
-11 H fan speed
I fan speed
When low ambient cooling is in effect::
Outdoor fan speed control logic (low
ambient cooling)
When T4 <15 ℃ (59 ℉) and T3 < 30 ℃ (86
℉), the unit enters into low ambient cooling
mode. The outdoor fan chooses a speed
according to T3.
When T3≥38 ℃ (100.4 ℉) or when T4≥20 ℃
(68 ℉), the outdoor fan chooses a speed
according to T4 again.

Midea MCH4U-36PHH2 Specifications

General

Brand	Midea
Model	MCH4U-36PHH2
Category	Air Conditioner
Language	English