Carrier MMY-MAP0724FT9UL Service Manual page 109

Wireless remote control (4-way Cassette type)
Procedure
Turn off the air conditioner fs power.
Remove the adjustment corner cap attached to
the sensor section from the ceiling panel.
For removing method, follow the installation
1
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).
Change Bit 1, "TEST," of switch S003 on the
sensor PC board from "off" to "on."
Replace the sensor cover and attach the
2
adjustment corner cap with the sensors to the
ceiling panel.
Turn on the air conditioner fs power.
Push the
and select the "
mode with the Mode button. (All display lamps on
the wireless remote control sensor section blink
3
during the test operation.)
• Do not use any operating mode other than
" COOL" or "
• Error is detected as usual.
When the test operation has finished, push the
4
button to stop the operation.
Turn off the air conditioner fs power.
Change Bit 1 of switch S003 on the sensor PC
5
board from "on" to "off."
Attach the adjustment corner cap with the sensors
to the ceiling panel.
Sensor cover
Adjustment
corner cap
Test operation from the outdoor unit
• Refer to "Function to start/stop (ON/OFF) indoor unit from outdoor unit" in "Service support function."
Note:
The test operation returns to normal operating mode after 60 minutes.
Operation content
button of the wireless remote control,
COOL" or " HEAT" operating
HEAT".
Bit 1
OFF ON
4 3 2 1
ON
S003
Sensor PC board
Wireless remote control (Ceiling type)
Procedure
Turn on the air conditioner fs power.
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
1
turned on the second and subsequent times after that.
After the specified time has passed, perform the test
operation.
Push the
mode to "
2
button.
Then change the fan speed to "
the "Fan" button.
Test cooling operation
Set the temperature to
64.4 ˚F (18 ˚C) using
3
the Temperature setting
button.
After checking for the
receiving gbeep h tone,
4
immediately push the
Temperature setting
button to set it to
66.2 ˚F (19 ˚C).
After checking for the
receiving gbeep h tone,
immediately push the
5
Temperature setting
button to set it to
64.4 ˚F (18 ˚C).
Then repeat steps
approximately 10 seconds, the "OPERATION"
(green) and "READY" (yellow) display lamps on
6
the sensor part of the wireless remote controller
blink, and the air conditioner starts operating.
If the lamps do not blink, repeat step
subsequent steps.
After the test operation, push the Start/Stop
7
button to stop the operation.
Outline of test operation from the wireless remote controller
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
Always select
[ HIGH]
fan speed.
2
2
– 109 –
Operation content
button and change the operating
COOL" or " HEAT" with the Mode
High" using
Test heating operation
Set the temperature to
86 ˚F (30 ˚C) using the
Temperature setting
button.
After checking for the
receiving gbeep h tone,
immediately push the
Temperature setting
button to set it to
84.2 ˚F (29 ˚C).
After checking for the
receiving gbeep h tone,
immediately push the
Temperature setting
button to set it to
86 ˚F (30 ˚C).
→ → →
4 5 4 5
. After
2
and the
3, 4,
5, 6
2,7