Test Run - Mitsubishi Electric Mr. Slim PSY-SP KA Series Installation Manual

7. Test run
7.1. Before test run
► After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply
or control wiring, wrong polarity, and no disconnection of one phase in the
supply.
F E D B

TEST RUN

COOL, HEAT
C
°C
°C
SIMPLE
TEMP. ON/OFF
MENU ON/OFF
FILTER
BACK MONITOR/SET DAY CHECK
CLOCK OPERATION
PAR-21MAA CLEAR
H G I M
Fig. 7-1
BACK
PAR-21MAA
Fig. 7-2
[Output pattern A] Errors detected by indoor unit
Check code
P1 Intake sensor error
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
E6, E7 Indoor/outdoor unit communication error
P4 Drain sensor error
P5 Drain pump error
P6 Freezing/Overheating safeguard operation
EE Communication error between indoor and outdoor units
P8 Pipe temperature error
E4 Controller signal receiving error
– –
– –
PL Refrigerant circuit abnormal
Fb Indoor unit control system error (memory error, etc.)
No corresponding
– –
A ON/OFF button
B Test run display
C Indoor liquid line
temperature display
D ON/OFF lamp
E Power display
F Error code display
Test run remaining time
display
A
G Set temperature button
H Mode selection button
TEST
I Fan speed button
M TEST button
ERROR CODE
TEMP. ON/OFF
MENU ON/OFF FILTER
MONITOR/SET DAY CHECK TEST
CLOCK OPERATION CLEAR
ERROR CODE
ERROR CODE
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► Use a 500-volt megohmmeter to check that the resistance between the power
supply terminals and ground is at least 1.0 MΩ.
Do not carry out this test on the control wiring (low voltage circuit) terminals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
7.2. Test run
The following 2 methods are available.
7.2.1. Using wired controller (Fig. 7-1)
1 Turn on the power at least 12 hours before the test run.
2 Press the [TEST] button M twice. ➡ "TEST RUN" appears on the liquid crystal
display.
3 Press the [Mode selection] button H. ➡ Make sure that wind is blown out.
4 Press the [Mode selection] button H and switch to the cooling mode.
➡ Make sure that cold wind is blown out.
5 Press the [Fan speed] button I. ➡ Make sure that the wind speed is switched.
6 Check operation of the outdoor unit fan.
7 Release test run by pressing the [ON/OFF] button A. ➡ Stop
8 Register a telephone number.
The telephone number of the repair shop, sales office, etc., to contact if an error
occurs can be registered in the controller. The telephone number will be displayed
when an error occurs. For registration procedures, refer to the operation manual
for the indoor unit.
7.2.2. Using SW4 in outdoor unit
Refer to the outdoor unit installation manual.
7.3. Self-check (Fig. 7-2)
1 Turn on the power.
2 Press the [CHECK] button A twice.
3 Set refrigerant address with [TEMP.] button C if system control is used.
4 Press the [ON/OFF] button to stop the self-check.
A CHECK button
B Refrigerant address
C TEMP. button
D IC: Indoor unit
OC: Outdoor unit
E Check code
F Unit address
Symptom Remark
9