Types Of Control Cables; Before Test Run - Mitsubishi Electric PKFY-P20VBM-E Installationshandbuch

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

6.1. 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 sup-
ply or control wiring, wrong polarity, and no disconnection of one phase in
the supply.
Use a 500-volt megohmmeter to check that the resistance between the
power supply terminals and ground is at least 1.0 M .
TEST RUN
COOL, HEAT
°C
°C
SIMPLE
TEMP. ON/OFF
MENU ON/OFF
BACK MONITOR/SET DAY
PAR-21MAA CLOCK OPERATION
240V
CN43
CN82
SW11 SW14
0 0
ON/OFF button
Test run display
Liquid pipe (Indoor unit)
temperature display
ON/OFF lamp
Power display
Error code display
Test run remaining time display
Set temperature button
Mode selection button
FILTER
CHECK TEST
Air direction button
CLEAR
TEST button
Fan Speed button
Louver button
Fig. 6-1
5.3. Setting addresses (Fig. 5-5)
(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.
Address board

5.4. 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
Remarks When 10 m is exceeded, use cable with the
same specifi cations as transmission line wiring
3. MA Remote control cables
Kind of remote control cable
Cable diameter
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 M .
6.2. Test run
Using wired remote controller (Fig. 6-1)
Turn on the power at least 12 hours before the test run.
Press the [TEST] button twice.
Press the [Mode selection] button and switch to the cooling (or heating) mode.
Make sure that cold (or warm) wind is blown out.
Press the [Fan speed] button.
Press the [Air direction button] or [Louver button].
Check operation of the vane or louver.
Check operation of the outdoor unit fan.
Release test run by pressing the [ON/OFF] button.
Register a telephone number.
The telephone number of the repair shop, sales offi ce, 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 opera-
tion manual for the indoor unit.
Note:
• If an error code is displayed on the remote controller or if the air condition-
er 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 AVAILA-
BLE" may appear on the remote controller display depending on the indoor
unit model, but this is not a malfunction.
2
2
2-core cable (unshielded)
2
0.3 to 1.25 mm
"TEST RUN" liquid crystal display
Make sure that the wind speed is switched.
Stop
7