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Mini VRF SYSTEM
Service Checker
6
1. Outdoor Unit Maintenance Remote Controller
6-5
All units start/stop (Fig. 6-1)
<Operation>
The
The
(ON/OFF operation) button can be
used to start and stop all indoor units.
• The LED illuminates if any indoor unit is operating.
• The LED blinks if an alarm occurs at any of the
operating indoor units.
Cooling/heating change (Fig. 6-1)
NOTE
Cooling and heating mode changes are only available
when all indoor units are stopped.
when all indoor units are stopped.
<Operation>
The
The
(MODE) button can be used to change
between heating and cooling operation.
• The display indicates the operating mode of the
indoor unit with the lowest unit No.
All units test run (Fig. 6-2)
<Operation>
The
The
(CHECK) button can be used to start and
stop a test run for all units.
• To start, press and hold the button for 4 seconds.
During the test run, “TEST” is displayed.
• The status of test runs performed from the indoor
unit remote controller is not displayed on the outdoor
unit maintenance remote controller.
unit maintenance remote controller.
LED
Fig. 6-1
Fig. 6-2
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Mini VRF SYSTEM
Service Checker
6
1. Outdoor Unit Maintenance Remote Controller
n Display (functions)
•
Use the temperature setting
and
buttons to change the item code.
Item code
Item
Remarks
À
Outdoor unit alarm
Á
Alarm code display
No. of connected indoor units
Quantity
Unit Nos. of connected indoor unit
7-segment display
Operating status of indoor unit
7-segment display
Thermostat ON status of indoor unit
7-segment display
Operating status of outdoor unit compressor
7-segment display
Compressor 1 operating time
0 – 99999999 hours
Outdoor unit power ON time
0 – 99999999 hours
Compressor 1 operation count
0 – 65535 times
Alarm history 1 (most recent)
Alarm history 2
Alarm history 3
Alarm history 4
Alarm history 5
Alarm history 6
Alarm history 7
Alarm history 8 (oldest)
Firmware version
Display the version No. × 100.
Program version
Display the version No. × 100.
6-6
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Mini VRF SYSTEM
Service Checker
6
1. Outdoor Unit Maintenance Remote Controller
6-7
Â
XX-YY system
Displays the outdoor unit sub-bus address which is currently
selected.
XX = Outdoor unit system address on main bus line (1 – 30)
YY = Outdoor unit sub-bus address (1)
selected.
XX = Outdoor unit system address on main bus line (1 – 30)
YY = Outdoor unit sub-bus address (1)
"1" appears when there is only outdoor unit.
Sample displays (Fig. 6-4, Fig. 6-5)
LED
1
2
3
Fig. 6-3
: <No. of connected indoor units>
4 units connected
Fig. 6-4
: <Indoor Unit Nos. 1, 2, 3, 4 connected>
Fig. 6-5
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Mini VRF SYSTEM
Service Checker
6
1. Outdoor Unit Maintenance Remote Controller
6-8
Concerning the 7-segment 4-digit display of remote controller timer time
The unit Nos. of connected units are indicated by four 7-segment digits (
) and a colon.
•
The meaning of the colon changes in the same way to indicate unit Nos. up to 80.
• Sample displays of connected indoor unit Nos.
NOTE
The change of the colon display (between unit Nos. 1 – 20 to unit Nos. 21 – 40) occurs automatically every 10
seconds. (However the display does not change if there are no higher-number units connected.)
To change the display to the higher-number units before 10 seconds have passed, press the
seconds. (However the display does not change if there are no higher-number units connected.)
To change the display to the higher-number units before 10 seconds have passed, press the
(FLAP)
button.
An 8-digit display is used for display of the compressor total operating time (in 1-hour units).
• When the fi rst 4 digits are displayed, the bottom dot of the colon is lit. (Figure (A))
• When the last 4 digits are displayed, the colon dot is not lit. (Figure (B))
• The display of the fi rst 4 digits and last 4 digits changes automatically every 10 seconds.
• It can also be changed by pressing the
• When the last 4 digits are displayed, the colon dot is not lit. (Figure (B))
• The display of the fi rst 4 digits and last 4 digits changes automatically every 10 seconds.
• It can also be changed by pressing the
(FLAP) button.
NOTE
The remote controller check function does not function with the outdoor unit maintenance remote controller (when
it is connected to the outdoor unit).
it is connected to the outdoor unit).
1
2
4
5
3
6
7
9
10
8
11
12
14
15
16
17
19
20
18
21
22
24
25
26
27
29
28
33
40
13
23
30
34
35
32
31
39
38
36
37
: <Compressor total operating time>
(A) and (B) are displayed alternately
(The example here (0000, 0062)
indicates 62 hours.).
(The example here (0000, 0062)
indicates 62 hours.).
(A)
(B)
• Display of unit No. 1
Meaning of colon
1 – 20
21 – 40
41 – 60
61 – 80
Meaning of colon
1 – 20
21 – 40
41 – 60
61 – 80
• Display of unit Nos. 1 and 2
• Display of unit Nos. 1, 2, and 3
• Display of unit Nos. 1, 2, 3, and 4
• Display of unit Nos. 1 - 20
• Display of unit Nos. 21 - 40
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