MCAC-UTSM-2008-05 Optional Controller
Control 117
a. TEMP. Display
TEMP. Display is applicable to the following: Set Temp. Ts（17-30℃）, Indoor Return Air Temp. T1,
Evaporator Pipe Temp. T2A, Evaporator Middle Pipe Temp. T2B, Condenser Pipe Temp. T3. And the
allowable data display range is 0℃--99℃. If higher than 99℃, then display 99℃. If lower than 0℃, then
display 0℃. What’s more, the real display range also has relationship with the PCB temperature
checking range. If no effective data, then display “-“and Unit symbol ℃ will be ON.
b. CURRENT Display
CURRENT display is applicable to Compressor Current. The allowable range is 0A-99A. If no effective
data, then display “-“and Unit symbol mp
will be ON.
c. TIMER Display
TIMER is used to display the time of TIMER ON and TIMER OFF. The unit symbol Hr will be ON at the same
time.
d. ERROR code display
ERROR is used to display malfunction warning data of the air-conditioner or the CCM.
The display range of ERROR code is E0-EF, where, E means ERROR, 0-F means
ERROR code, or Network ERROR display 00-0F#. If no EEROR, then display “E-“ and ﹟will be ON.
e. PROTECT. Code display
PROTECT. Is used to display malfunction warning data of the air-conditioner or the CCM.
The display range of PROTECT. Code is P0-PF, where, P means PROTECT, 0-F means
PROTECT. Code. If no PROTECT, then display “P-“ and ﹟will be ON.
f. ADDRESS display
ADDRESS is used to display the ADDRESS code of the present selected air-conditioner.
The display range is 0-63, and at the same time ﹟will be ON.
g. Number Display of Online air-conditioners and ON/OFF air-conditioners It is used to display the
number of online air-conditioners in LAN and ON/OFF air-conditioners at present. The display range is
0-64.
h. Auxiliary function display
Means ECONOMIC RUNNING, means SWING, means Auxiliary Heater, means
VENT.
i. Mode Confliction Display
Function Confliction display will flash at interval 1 second.
3) Stand-by Page Display
Stand-by page data consist of several pages and the page number is not fixed.
Stand-by page can display the total number of air-conditioners in network, under ON state and under OFF
state. If one or more air-conditioners in network have malfunction, or the CCM checks other malfunctions,
the Stand-by page will display the first ERROR Code from small to big according to the number. Other
malfunctions can be queried by buttons “+” and “-“. If no malfunction and one or more online air-conditioners
in network are in ON state, the Stand-by page will display present main Running Mode, Set Temp. And
Indoor Fan Speed. If no malfunction and all air-conditioners in network are in OFF state, ERROR Code nor
Running mode will not be displayed.
4) Query Page Display
Query Page data consist of several pages and the page number is not fixed.
a. When first entering into Query Page Display, the address of the first online air-conditioner will be
selected in default and the data of the first page will be displayed.
b. The data of other pages can be displayed in circulation by pressing buttons “+” or “-”.
c. The running state data of different air-conditioners can be queried by pressing “Previous” or “Next” to
select the address.
5) Running Mode Setting Page Display
Running Mode Setting Display only has one page. And display the selected mode, auxiliary function and the
selected operation state.
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