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8-7. Oil Level Judgment Display
The current compressor oil level judgment results can be accessed by setting the switches provided on the
interface P.C. board of an outdoor unit.
Perform the checks in accordance with the procedure described below.
1
Operation Procedure
(1) Start the operation.
(2) Set the switches provided on the interface P.C. board of the outdoor unit for which oil level judgment results are
required as follows:
SW01/SW02/SW03 = 1/16/1
(3) The oil level judgment result will be displayed on the 7-segment display.
7-segment display: [oL] [#. .$]
The letters #, and $ are digits that represent judgment results for compressor Nos. 1, 2 and 3, respectively.
(See the table below for the interpretation of the judgment results.)
(4) When checking is completed, revert the SW01/SW02/SW03 setting to [1/1/1].
2
Oil Level Judgment Results
Display example
Displayed digit Judgmen
n
o
i
t
p
i
r
c
s
e
D
t
l
u
s
e
r
t
O
Normal
The amount of oil in the compressor is sufficient.
1
2
Low level
The amount of oil in the compressor is insufficient. (Both “1” and “2” stand for insufficiency.)
If this result persists, the system will turn itself off in a protective shutdown.
1
Start operation.
3
2
4
Interface P.C. board of outdoor unit for
which oil level judgment results are
Oil level judgment
results are displayed
Set SW01/SW02/SW03 to
1/16/1.
Upon completion of checking, revert
SW01/SW02/SW03 setting to 1/1/1.
7-segment display
[ oL ]
[ oL ]
[ oL ]
Oil level is normal for compressors 1, 2 and 3.
Oil level is low for compressors 1, 2 and 3.
Oil level is low for compressor 2 and normal for compressors 1 and 3.
Judgment result for compressor 3
Judgment result for compressor 2
Judgment result for compressor 1
[ 0 0 0 ]
[ 2 2 2 ]
[ 0 2 0 ]
Summary of Contents for MMY-MAP0804HT7JP
Page 23: ... 22 1 Wiring Diagrams 1 1 Outdoor Unit Models MMY MAP0804 MAP1004 and MAP1204 ...
Page 24: ... 23 Models MMY MAP1404 and MAP1604 ...
Page 35: ... 34 1 2 10 Slim Duct Type AP024 AP027 Models MMD AP0244SPH MMD AP0274SPH ...
Page 38: ... 37 1 2 13 High Wall Type 3 series Models MMK AP0073H AP0093H AP0123H AP0153H AP0183H AP0243H ...
Page 52: ... 51 2 5 Parts Layout in Outdoor Unit 8 10 12HP Model MMY MAP0804 MAP1004 MAP1204 ...
Page 53: ... 52 14 16HP Model MMY MAP1404 MAP1604 ...
Page 57: ... 56 2 7 2 Inverter P C board for compressor MCC 1596 A3 IPDU ...
Page 323: ......