Test Run (Fig. 6-1); Before Test Run - Mitsubishi Electric CITY MULTI Para El Instalador

6. Test run (Fig. 6-1)

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
Fig. 6-1
Fig. 6-2
14
A ON/OFF button
Test run display
B
Liquid pipe (Indoor unit)
C
temperature display
ON/OFF lamp
D
E Power display
Error code display
F
Test run remaining time display
G Set temperature button
Mode selection button
H
FILTER
CHECK TEST Air direction button
I
CLEAR
M TEST button
Fan Speed button
N
Louver button
O
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 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 and switch to the cooling (or heating) mode.
3
Make sure that cold (or warm) wind is blown out.
Press the [Fan speed] button.
4
Press the [Air direction button] or [Louver button].
5
Check operation of the vane or louver.
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 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.
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.
"TEST RUN" liquid crystal display
Make sure that the wind speed is switched.
Stop