Types Of Control Cables; Test Run; Before Test Run - Mitsubishi Electric CITY MULTI PFFY-P20VKM-E Manuel D'installation

7. Electrical work
A
SW5
220V
SW1
ON
OFF
1 2 3 4 5 6 7 8 9 10
SW12
0
Fig. 7-4

8. Test run

8.1. Before test run

s 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.
s Use a 500-volt megohmmeter to check that the resistance between the power
supply terminals and ground is at least 1.0 MΩ.
F E D B
TEST RUN
C COOL, HEAT
˚C
˚C
SIMPLE
TEMP. ON/OFF
MENU ON/OFF
FILTER
BACK MONITOR/SET DAY
CHECK
PAR-21MAA CLOCK OPERATION CLEAR
H G I
8
240V
CN43
CN82
SW11 SW14
SWC
0 0
A ON/OFF button
B Test run display
C Indoor temperature liquid line
temperature display
D ON/OFF lamp
E Power display
F Error code display
Test run remaining time dis-
A
play
G Set temperature button
TEST H Mode selection button
I Fan speed button
M TEST button
M
Fig. 8-1
7.3. Setting addresses (Fig. 7-4)
(Be sure to operate with the main power turned OFF.)
• There are two types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
Note:
Please set the switch SW5 according to the power supply voltage.
• Set SW5 to 240 V side when the power supply is 230 and 240 volts.
• When the power supply is 220 volts, set SW5 to 220 V side.
A Address board

7.4. Types of control cables

1. Wiring transmission cables: Shielding wire CVVS or CPEVS
• Cable diameter: More than 1.25 mm
2. M-NET Remote control cables
Kind of remote control cable Shielding wire MVVS
Cable diameter More than 0.5 to 1.25 mm
When 10 m is exceeded, use cable with the same
Remarks
specifications as transmission line wiring.
3. MA Remote control cables
Kind of remote control cable 2-core cable (unshielded)
Cable diameter 0.3 to 1.25 mm
s Do not carry out this test on the control wiring (low voltage circuit) termi-
nals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
Insulation resistance
8.2. Test run (Using wired remote controller) (Fig. 8-1)
1 Turn on the power at least 12 hours before the test run.
2 Press the [TEST] button twice. ➡ "TEST RUN" liquid crystal display
3 Press the [Mode selection] button. ➡ Make sure that wind is blown out.
4 Press the [Mode selection] button and switch to the cooling (or heating) mode.
➡ Make sure that cold (or warm) wind is blown out.
5 Press the [Fan speed] button. ➡ 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. ➡ 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 remote controller. The telephone number will be
displayed when an error occurs. For registration procedures, refer to the operation
manual for the indoor unit.
Note:
• If an error code is displayed on the remote controller or if the air conditioner
does not operate properly, refer to the outdoor unit installation manual or
other technical materials.
• The OFF timer is set for the test run to automatically stop after 2 hours.
• During the test run, the time remaining is shown in the time display.
• During the test run, the temperature of the indoor unit refrigerant pipes is
shown in the room temperature display of the remote controller.
• When the VANE or LOUVER button is pressed, the message "NOT AVAIL-
ABLE" may appear on the remote controller display depending on the indoor
unit model, but this is not a malfunction.
• For the PFFY-P·VKM series, the airflow direction displayed on the remote
controller is different from the actual airflow direction. Refer to the following
table.
1
(Horiz.)
Display
1
Actual
• The lower air outlet damper automatically opens and closes according to the
piping temperature, intake air temperature, and operation time. The airflow
direction cannot be set.
2
2
2
2 3 4
Swing
2 3 4
(Horiz.) Swing