Test Run; Before Test Run - Mitsubishi Electric City Multi PMFY-P NBMU-E Série Manuel D'installation

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
supply 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
˚F
˚F
SIMPLE
TEMP. ON/OFF
MENU ON/OFF
FILTER
BACK MONITOR/SET DAY CHECK
PAR-21MAA CLOCK OPERATION
CLEAR
Fig. 6-1
ON/OFF button
Test run display
Indoor liquid pipe
temperature display
ON/OFF lamp
Power display
Error code display
Test run remaining
time display
TEST
Set temperature button
Mode selection button
Fan speed button
TEST button
► 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 M".
Insulation resistance
6.2. Test run
Using wired remote controller (Fig. 6-1)
Turn on the power at least 12 hours before the test run.
1
Press the [TEST] button twice.
2
Press the [Mode selection] button.
3
Press the [Mode selection] button and switch to the cooling (or heating) mode.
4
Make sure that cold (or warm) wind is blown out.
Press the [Fan speed] button. Make sure that the wind speed is switched.
5
Check operation of the outdoor unit fan.
6
Release test run by pressing the [ON/OFF] button.
7
Register a telephone number.
8
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 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
AVAILABLE" may appear on the remote controller display depending on the
indoor unit model, but this is not a malfunction.
"TEST RUN" liquid crystal display
Make sure that wind is blown out.
Stop
11