Midea Aqua Tempo Super MC-SP25-RN1L, Technical & Service Manual

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Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-201606
135
16.3.
3 The adjusting logic of heating mode: (the parameter of δ1,δ2,Tj1 and Tj2 are decided by the
outdoor unit)
(the parameter of
δ
1
,
δ
2
,
Tj1 and Tj2 are
decided by the outdoor unit)
3: The adjusting logic of heating mode:
(the parameter of
δ1
,
δ2
,
Tj1 and Tj2
are decided by the outdoor unit)
(TAL: total outlet water temperature)
● Fault alarm handing
1:When unit fails or the wire controller
detects failure of communication with the
the outdoor units, the indicator blinks.
After all fault of the system and the wire
controller are eliminated, the indicator
stops blinking. The fault indicator and
T
≤
Ts- δ
2
T
<
Ts+1-
δ
Ts-1+ δ
>
T ≥ Ts+1-
δ
Ts-1+ δ ≤T ＜Tj2
T ≥Tj2
●
Fault alarm handling
1.When unit fails or the wired controller detects failure of communication with the outdoor units, the indicator
blinks. After all errors of the system and the wired controller are eliminated, the indicator stops blinking. The
fault indicator and the operation indicator share the same LCD.
2.Some errors will be auto cleared after the errors are cleared, a
nd some error must press the “ALARM
CLEAR” button and then be cleared after the errors are cleared. The details can refer to the error code table.
If this type of error comes out frequently, then need to check and maintain the unit.
OVERVIEW OF WIRED CONTROLLER
Basic conditions of operating the wired controller:
1. Applicable range of supply voltage: Input voltage is AC 220V±10%, powered to wired controller by
attached power adapter.
2. Operating environment temperature of wired controller: -15
℃
~+43
℃
.
3. Operating RH of wired controller: RH40%~RH90%.
16.3.4 OUTLINE OF FUNCTIONS
This wired controller provides the following functions:
1. Connect with the outdoor unit through the terminals P, Q and E. Connect with the upper unit through the
terminals X, Y and E(reserved).Connect with other wired controllers through the terminals P, Q and E.
2. Set the action mode through the keypad operation.
3. Provide the LCD display function.
4. Provide the timing startup function.
5. Real-time clock function (the wired controller inner place 3V battery)
When the wired controller is powered on, the LCD will display the current time; if it is powered off, the clock
will not be displayed, then it will be auto updated when the wired controller is re-power on.