Toshiba MMY-MAP0724HT6UL, Service Manual

Page: 87 / 241

86
Test operation from the outdoor unit
• Refer to “8-7-2. Function to start/stop (ON/OFF) indoor unit from outdoor unit” in “8-7. Service support function.”
Note:
The test operation returns to normal operating mode after 60 minutes.
▼
Wireless remote control (4-way Cassette type)
▼
Wireless remote control (Ceiling type)
Outline of test operation from the wireless remote control
Test cooling operation:
Start
➝
64.4 °F (18 °C)
➝
66.2 °F (19 °C)
➝
64.4 °F (18 °C)
➝
66.2 °F (19 °C)
➝
64.4 °F (18 °C)
➝
66.2 °F (19 °C)
➝
64.4 °F (18 °C)
➝
(Test operation)
➝
Stop
Test heating operation:
Start
➝
86 °F (30 °C)
➝
84.2 °F (29 °C)
➝
86 °F (30 °C)
➝
84.2 °F (29 °C)
➝
86 °F (30 °C)
➝
84.2 °F (29 °C)
➝
86 °F
(30 °C)
➝
(Test operation)
➝
Stop
Procedure Operation content
1
Turn off the air conditioner’s power.
Remove the adjustment corner cap attached to the
sensor section from the ceiling panel. For removing
method, follow the installation manual attached to the
ceiling panel. (Be careful when handling the sensor
section because it has cables connected to it.)
Remove the sensor cover from the adjustment corner
cap (held with 1 screw).
2
Change Bit 1, “TEST,” of switch S003 on the sensor
PC board from “off” to “on.”
Replace the sensor cover and attach the adjustment
corner cap with the sensors to the ceiling panel.
Turn on the air conditioner’s power.
3
Push the button of the wireless remote control,
and select the “ COOL” or “ HEAT” operating
mode with the Mode button. (All display lamps on the
wireless remote control sensor section blink during
the test operation.)
• Do not use any operating mode other than
“ COOL” or “ HEAT”.
• Error is detected as usual.
4
When the test operation has finished, push the
button to stop the operation.
5
Turn off the air conditioner’s power.
Change Bit 1 of switch S003 on the sensor PC board
from “on” to “off.”
Attach the adjustment corner cap with the sensors to
the ceiling panel.
Sensor cover
Adjustment
corner cap
Sensor PC board
Bit 1
Procedure Operation content
1
Turn on the air conditioner’s power.
2
Push the button and change the operating mode
to “ COOL” or “ HEAT” with the Mode button.
Then change the fan speed to “ High” using the
“Fan” button.
3
Test cooling operation Test heating operation
Set the temperature to
64.4 °F (18 °C) using the
Temperature setting
button. Set the temperature to 86
°F (30 °C) using the
Temperature setting
button.
4
After checking for the
receiving “beep” tone,
immediately push the
Temperature setting
button to set it to 66.2 °F
(19 °C). After checking for the
receiving “beep” tone,
immediately push the
Temperature setting
button to set it to 84.2 °F
(29 °C).
5
After checking for the
receiving “beep” tone,
immediately push the
Temperature setting
button to set it to 64.4 °F
(18 °C). After checking for the
receiving “beep” tone,
immediately push the
Temperature setting
button to set it to 86 °F
(30 °C).
6
Then repeat steps
4
➝
5
➝
4
➝
5
. After
approximately 10 seconds, the “OPERATION”
(green) and “READY” (yellow) display lamps on the
sensor part of the wireless remote control blink, and
the air conditioner starts operating.
If the lamps do not blink, repeat step
2
and the
subsequent steps.
7
After the test operation, push the Start/Stop button to
stop the operation.
This operation is not accepted for 5 minutes when power
has been turned on for the first time after installation, and
for 1 minute when power has been turned on the second
and subsequent times after that. After the specified time
has passed, perform the test operation.
Always select
[ HIGH]
fan speed.