Test Run - Toshiba MMU-AP0072WH Service Manual

SMMS 2-way Air Discharge Cassette Type
9

TEST RUN

Before test run
• Before turning on the power supply, carry out the
following procedure.
1. Using 500 V-megger, check that resistance of
1 M or more exists between the terminal block
of the power supply and the earth (earthing).
If resistance of less than 1 M is detected, do not
run the unit.
2. Check all valve of the outdoor unit being opened
fully.
• To protect the compressor at activation time, leave
power-ON for 12 hours or more be for operating.
• Never press the electromagnetic contactor to forcibly
perform a test run. (This is very dangerous because
the protective device does not work.)
• Before starting a test run, be sure to set addresses
following the Installation Manual supplied with the
outdoor unit.
H ow to execute a test run
• When a fan operation is to be performed for an
individual indoor unit, turn off the power, short CN72
on the circuit board, and then turn the power back on.
(First set the operating mode to "fan," and then
operate.) When the test run has been performed using
this method, do NOT forget to release the shorting of
CN72 after the test run is completed.
• Using the remote controller, operate the unit as usual.
For the procedure of the operation, refer to the
attached Owner's Manual. A forced test run can be
executed in the following procedure even if the
operation stops by thermo.-OFF. In order to prevent a
continuous operation, the forced test run is released
after 60 minutes have passed and returns to the usual
operation.
EN-47
CAUTION
Do not use the forced test run for cases other than the
test run because it applies an excessive load to the
devices.
In case of w f ired remote cont ller
2, 4
3
1,5
1
When the TEST utton is pressed and h ld for at
least 4 seconds, "TEST" appears on the display, and
the test run mode is established.
(While the test run is underway, "TEST" remains on
the display.)
2
Pu ton.
3
Usi ect the operation mode,
[ CO L] ].
• Do not run the air con r ditioner in a mode other
than [ COOL] or [ HEAT].
• The temperature controlling function does not
work during test run.
• The detection of error is performed as usual.
4
Af r th st run, push button to stop a
t is same as procedure 1.)
(Di
5
Push check button to cancel the test run mode.
([TEST di lay nd the status
re
In case of wireless remote controller
Always select
[ HIGH] air
volume.
1
1
1
Push (ON/OFF) e remote controller,
select [ COOL] or [
button, and then select [ HIGH] with
button.
2
Cooling test run:
Set the temperature to 18°C with
buttons.
Heating test run:
Set the temperature to 30°C with
buttons.
3
Cooling test run:
After confirming a signal receiving sound "beep"
immediately set the temperature to 19°C with
(temp. setup) buttons.
Heating test run:
After confirming a signal receiving sound "beep"
immediately set the temperature to 29°C with
(temp. setup) buttons.
24
4
Cooling test run:
After confirming a signal receiving sound "beep"
immediately set the temperature to 18°C with the
temp. setup buttons.
Heating test run:
After confirming a signal receiving sound "beep"
immediately set the temperature to 30°C with the
temp. setup buttons.
5
Repeat procedures 3 → 4 → 5 → 6.
Indicators "Operation", "Timer", and "Ready" in the
wireless receiver section flash in approx. 10
seconds, and the air conditioner starts operation. If
any of these indicators does not flash, repeat from
procedure 1.
6
Upon completion of the test run, push
button to stop operation.
Overview of test run operations using the wireless
remote controller
2, 3,
Cooling test run:
4, 5 ON/OFF → 18 °C → 19 °C → 18 °C → 19 °C → 18 °C →
19 °C → 18 °C (test run) → ON/OFF
1,6
Heating test run:
→ 30 °C → 29 °C → 30 °C → 29 °C → 30 °C →
ON/OFF
→ 30 °C (test run) → ON/OFF
29 °C
(MODE)
(FAN)
(temp. setup)
(temp. setup)
Installation Manual
(ON/OFF)
EN-48