Mitsubishi Heavy Industries SRC25MA-S User Manual

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1 GENERAL INFORMATION
1.1 Features
(1) Inverter
● Heating/cooling
The rotate speed of the compressor is changed steplessly in relation to varying load, and is linked
with the fans of indoor and outdoor units controlled by the changes of frequency, thus controls
the power.
● Allowing quick heating/cooling operation during start-up period.
The room temperature is kept constant through fine-tuned control after the machine is stabilized.
(2) Fuzzy control: According to the fuzzy control technology, the indoor temperature and humidity,
etc. are obtained through dynamic analysis to accurately regulate the rotate speeds
of the compressor and the fan to realize precise temperature control.
(3) Comfort: 3D air blowing, sleep mode, and other air blowing modes.
(4) Humanization: Room temperature displaying, key lock, concentrated/area air blowing.
(5) Life: Actual service life: over 20,000 hours; Working life: over 100,000 hours; On/off of relay:
over 50,000 times; Continuous on of LED: over 50,000 hours; On/off of emergency switch:
over 10,000 times.
(4) Self diagnosis function: We will continuously provide the best services for our customers through
devices judging abnormal operation, as follows:
Indoor indication
Error
RUN lamp
TIMER lamp
Temp.
indication
Indoor
unit
Sensors
Indoor heat exchanger sensor error
1 time/8 sec.
ON
06
Indoor inlet air (room temp.) sensor error
2 times/8 sec.
--
Others
Indoor fan motor error
6 times/8 sec.
16
Display communication error
--
--
00
Outdoor unit
Sensors
Outdoor temp. sensor error
Continuous
flashing
1 time/8 sec.
38
Outdoor heat exchanger (liquid pipe)
sensor error
2 times/8 sec.
37
Vent-pipe sensor error
4 times/8 sec.
39
Others
Power cut for current protection
ON
1 time/8 sec.
42
Failure of outdoor unit
2 times/8 sec.
59
Current safety
3 times/8 sec.
58
Failure of power module
4 times/8 sec.
51
Compressor over heat protection
5 times/8 sec.
36
Serial signal transmission error
6 times/8 sec.
05
Outdoor fan motor error
7 times/8 sec.
48
Cool room high pressure protection
control
Continuous
flashing
35
Controllable silicon voltage error
5 times/8 sec.
ON
47
Cooling circulation system protection
7 times/8 sec.
57
Locked-rotor/rotor lock
2 times/8 sec.
2 times/8 sec.
60
The air conditioner indicates the error of the indoor and outdoor sensors (thermistors) only when it is
in the stop mode. Error indication is removed after restart.
1.2 Model identification
For example:
R410A Refrigerant used
Master pattern change code
Master pattern
Capacity
Wall mounted type (C is the code for outdoor unit.)
Split type room air conditioner

Mitsubishi Heavy Industries SRC25MA-S Specifications

General

Brand	Mitsubishi Heavy Industries
Model	SRC25MA-S
Category	Air Conditioner
Language	English