Midea MOU-36HFN1-M User Manual

53
14. Electronic Function
14.1 Abbreviation
T1: Indoor room temperature
T2: Coil temperature of indoor heat exchanger
middle.
T2B: Coil temperature of indoor heat exchanger
outlet.
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature
Td: Target temperature
14.2 Display function
14.2.1 Icon explanation on indoor display board
(Ceiling Floor)
14.2.2 Icon explanation on indoor display board
(Compact cassette).
14.2.3 Icon explanation on indoor display board
(slim Cassette).
14.3 Main Protection
14.3.1 Three minutes delay at restart for
compressor
1 minute delay for the 1
st
time stand-up and 3
minutes delay for others.
14.3.2 Temperature protection of
compressor top
The unit will stop working when the compressor
top temperature protector cut off, and will
restart after the compressor top temperature
protector restart.
14.3.3 Temperature protection of
compressor discharge
When the compressor discharge temperature is
getting higher, the running frequency will be
limited as below rules:
---Compressor discharge temperature T5>115℃
(239°F) for 5s, compressor stops and restarts
up till T5<90℃(194°F)
---110<T5<115 ℃ (239°F), decrease the
frequency to the lower level every 2 minutes.
---105(221°F)<T5<110℃(230°F), keep running
at the current frequency.
----T5<105℃(221°F), no limit for frequency.
14.3.4 Fan speed is out of control
When indoor fan speed keeps too low (lower
than 300RPM) for 50s, the indoor fan will shut
off and restart 30s later, if protection happened
3 times when fan motor restarts continuously,
the unit will stop and the LED will display the
failure.
When outdoor fan speed keeps too low (lower
than 100RPM) or too high (higher than
1500RPM) for 60s, the unit will stop and the
LED will display the failure. Malfunction is
cleared 30s later.
14.3.5 Inverter module protection
The Inverter module has a protection function
about current, voltage and temperature. If these
protections happen, the corresponding code
will display on indoor unit and the unit will stop
working.
14.3.6 Indoor fan delayed open function
When the unit starts up, the louver will be active
immediately and the indoor fan will open 10s
later.
If the unit runs in heating mode, the indoor fan
will be also controlled by anti-cold wind
function.

Midea MOU-36HFN1-M Specifications

General

Brand	Midea
Model	MOU-36HFN1-M
Category	Air Conditioner
Language	English