Test Run; Before Test Run; Test Run Procedures - Mitsubishi Electric PRH-P200MYA Para El Instalador

12. Test run

12.1. Before test run

The test run can be carried out either from the unit or remote controller.
1. Checklist
•
After wiring of units are complete, check that refrigerant is not leaking, the
power and control wires are not loose, and the poles are not reversed.
•
Use a 500 V insulation resistance tester to make sure that the resistance be-
tween the power terminal and the ground is 1.0 MΩ or more. If it is less than
1.0 MΩ, do not operate the unit.
•
Make sure there is no malfunction in the unit. (If there is a malfunction, you
can diagnose it using LED1 on the outdoor-side controller board.)
•
Check the electrical power phase. If the phase is reversed, the fan may rotate
in the wrong direction or stop, or unusual sounds may be produced.
•
Starting at least 12 hours before the test run, send current through the crank-
case heater. (If the current is running for a shorter period of time, damage to
the compressor could result.)
• For specific models requiring changing of settings for selection of power sup-
ply ON/OFF capability, make proper changes referring to the description for
Selection of Functions through Remote Controller.
After the above checks are complete, carry out the test run as indicated in the
following outline.

12.2. Test run procedures

1) Remote controller
Operating procedures
1 Turn on the main power supply
While the display on the remote controller indicates "
is disabled. Turn off the " " indicator before using the remote controller.
"CENTRALLY CONTROLLED"
indicator
2 Press the [TEST] button twice successively within three seconds. Test
run starts.
"TEST RUN" and "OPERATION MODE" are displayed alternately.
3 Press [ ] button
Cooling mode: Cool air should start to blow.
Heating mode: Warm air should start to blow (after a while).
Remote Controller Display
Remote controller is displaying "PLEASE WAIT", and
operation is not possible.
After power is turned ON, "PLEASE WAIT" is dis-
played for 3 mins., then error code is displayed.
Power is turned ON, and "EE" or "EF" are displayed
after "PLEASE WAIT" is displayed.
Display messages do not appear even when remote
controller operation switch is turned ON (operation
lamp does not light up).
Operation display appears but soon disappears even
when remote controller operations are executed.
", the remote controller
˚C
˚C
TEMP.
ON/OFF
Symptoms
Outdoor Substrate LED Display
After "startup" display, "00" is dis-
played (correct operation).
After "startup" display, error code is
displayed.
After "startup" display, "F1" (negative
phase) is displayed.
After "startup" display, "00" or "EE" is
displayed ("EE" is displayed when a
test run is made).
After "startup" display, "EA" (error for
number of units) or "Eb" (unit number
error) is displayed.
After "startup" display, "00" is dis-
played (correct operation).
After "startup" display, "00" is dis-
played (correct operation).
After "startup" display, "00" is dis-
played (correct operation).
4 Check the outdoor-side fan for correct running
The unit features automatic capacity control to provide optimum outdoor-side
fan speeds. The fan keeps running at a low speed to meet the current outside
air condition unless it exceeds its available maximum power. Then, in actuality,
the fan may stop or run in the reverse direction depending on the outside air,
which does not mean malfunction.
5 Press the [ ON/OFF] button to reset the test run in progress
• The test run will be automatically shut down after two hours in response to the
AUTO STOP setting of two hours on the timer.
• During the test run, the room temperature display shows the unit indoor-side
liquid piping temperatures.
• In the case of the test run, the OFF timer will activate, and the test run will
automatically stop after two hours.
• The room temperature display section shows the control temperature for the
units during the test run.
• Check that the units are running properly operation.
Malfunctions may not be displayed even if the wiring is incorrect.
6 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 8.4
Function selection of remote controller.
Operation mode display
"TEST RUN" and "OPERATION MODE" are
displayed alternately.
Timer stops test run after two hours.
˚C
Piping temperature display
TEMP. ON/OFF
Stop test run by pressing the [
MENU ON/OFF FILTER
During test run, the RUN lamp remains on.
BACK MONITOR/SET DAY CHECK TEST
PAR-21MAA CLOCK OPERATION [TEST] button
CLEAR
[
(*1)
After turning ON the power, the system will go into startup mode, and the remote
controller operation lamp (green) and the display section's "PLEASE WAIT" will
flash. Also, in the case of the indoor-side controller board substrate LEDs, LED 1
and LED 2 light up (when address is 0) or become dim (when address is not 0), and
LED 3 flashes. In the case of the outdoor-side controller board substrate LED 1
display, and are displayed alternatively at 1-second intervals.
• If one of the above operations does not function correctly, the following causes
should be considered, and if applicable, dealt with. (The following symptoms
have been determined under test run mode. Note that "startup" in the chart
means the *1 display above.)
• After power is turned ON, system startup lasts for about 2 mins., and
"PLEASE WAIT" is displayed (correct operation).
• Outdoor-side unit's safeguard installation connector is open.
• Negative phase and open phase of outdoor unit's power terminal board
(Single phase: L, N, /triple phase: L1, L2, L3, N,
• Incorrect connection of outdoor terminal board (Single phase: L, N,
triple phase: L1, L2, L3, N,
• Unit construction differ
• Wiring for the unit is not connected correctly. (Polarity is wrong for S1, S2,
S3)
• Remote controller transmission wire short
• There is no unit for address 0 (address is something other than 0).
• Remote controller transmission wire burnout
• After cancellation of function selection, operation is not possible for about
30 secs. (correct operation).
ON/OFF] button.
] button
Cause
)
grounding and S1, S2, S3)
15
/