mundoclima H11 Series, Service Manual

Page: 34 / 73

33
Bit3
Frequency limit caused by T3.
Bit5=1, Bit3=1,
and Bit1=1.
This means that
a frequency limit
may be caused
by T4, T3, or the
current.
Bit2
Frequency limit caused by T5.
Bit1
Frequency limit caused by current
Bit0
Frequency limit caused by voltage
43 Average value of T2 (Sum T2 value of all indoor units)/(number of indoor units in good
connection)
44 Outdoor unit fan motor state Off: 0, Super high speed:1, High speed:2, Med speed: 3, Low speed: 4,
Breeze:5, Super breeze: 6
45 The last error or protection code 00 means no malfunction and protection
46 F indoor unit capacity
47 F indoor unit capacity demand code
48 F indoor unit evaporator outlet temperature
(T
2B
F)
If the temperature is lower than -9
!
, the digital display shows “-9.” If the
temperature is higher than 70
!
, the digital display shows “70.” If the
indoor unit is not connected, the digital display shows: “――”
49 F indoor unit room temperature (T
1
F)
50 F indoor unit evaporator temperature (T
2
F)
51 EXV open angle for F indoor unit
52 Reason for shutdown(for some models)
9.5 Protection
9.5.1 Three minutes delay at restart for compressor.
9.5.2 Temperature protection of compressor discharge.
When the compressor discharge temperature is getting higher, the running frequency will be limited as below
rules:
T5
Compressor off
Frequency limit
Normal
Frequency holding
9.5.3 Low voltage protection
VOLTAGE
No limit
VOLT_LTM_FREQ1_ADD
VOLT_LTM_FREQ2_ADD
Note: if the low voltage protection occurs and not resumes within 3 minutes, it will keep the protection always
after restart the machine.
9.5.4 Compressor current limit protection
Temperature interval of current limit is same as range of T4 limited frequency.
Cooling mode:
Service manual
MUEX-
H11 series