Mitsubishi Electric CITY MULTI PLFY-PNBMU-E2 Serie Manuel D'installation page 11

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".
Backlit LCD
TEMP. button
.
MODE button
Fig. 6-1
Fig. 6-2
All manuals and user guides at all-guides.com
ON/OFF lamp
The lamp will light up in green when
turned on, and blink during startup
and when an error occurs.
button
ON/OFF
Pressing this button starts and
stops the operation.
FAN button
VANE button
Water supply pump
Water (about 1000cc)
Drain plug
Pour water through outlet
.
Be careful not to spray water
into the drain pump mechanism.
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 Simple remote controller (Fig. 6-1)
MA
1
Before making a test run, refer to the "Test Run" section of the indoor unit
installation manual.
2
When the [ON/OFF] button and [TEMP.
for 2 seconds or longer, test run is performed.
3
Stop the test run by pressing the [ON/OFF] button.
4
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.
Indoor unit piping temperature
Display range: -4ºF (-20ºC) to 158ºF
(70ºC)
"-4ºF" or "158ºF" flashes on the
display.
COOL
VENTI.
6.3. Check of drainage (Fig. 6-2)
• Ensure that the water is being properly drained out and that no water is leaking
from joints.
When electric work is completed.
. Pour water during cooling operation and check.
When electric work is not completed.
. Pour water during emergency operation and check.
* Drain pan and fan are activated simultaneously when single phase 208/230V is
turned on to L1 and L2 on terminal block after the connecter (SWE) on controller
board in the electrical branch box is set to ON.
Be sure to turn it back to the former state after work.
] button are pressed simultaneously
Test run time
The remaining time for test run
is displayed.
Display range: 2:00 to 0:01
After two hours, the test run
stops automatically.
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