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Aqua tempo power series tropical air-cooled scroll chiller 50Hz MCAC-ATSM-2014-09
98
Three phases A, B and C of power supply should exist simultaneously, and the difference of phase angle should be 120º
among them. If the conditions are not met, fault of phase sequence or phase lack may occur, and fault code will be displayed.
When the power supply returns to normal condition, fault is removed. Attention: phase lace and phase dislocation of power
supply are detected only in the early period after the power supply is connected, and they are not detected while the unit is in
operation.
29
Output of transformer
30
Output of transformer
31
One compressor of the system B(B2);
Neutral wire;
One compressor of the system A(A2) ;
Neutral wire.
32
The alarm signal output of the unit(ON/OFF signal)
33
Anti-freezing pressure protection of the system A(protection code Pc)
Anti-freezing pressure protection of the system B(protection code Pd)
34
Remote control port(ON/OFF signal, effect on NO.0 unit)
1
、
Dial the code S7 in the main control board to the
“
ON
”
position and enter to the remote control mode
(the wired controller is invalid)
2
、
If the port is closed, the unit is turned on, else, the unit is turned off.
35
Remote mode control port(ON/OFF signal effect on NO.0 unit)
1
、
Dial the code S7 in the main control board to the
“
ON
”
position and enter to the remote control mode
(the wired controller is invalid)
2
、
First, the ON/OFF port is closed. Second, if this port is closed, the unit enters the heating mode, else, the unit enters
the cooling mode.
CAUTION
1. Faults
When the main unit suffers faults, the main unit stops operating, and all other units also stop running;
When the subordinate unit suffers faults, only the unit stops operating, and other units are not affected.
2. Protection
When the main unit is under protection, only the unit stops operating, and other units keep running;
When the subordinate unit is under protection, only the unit stops operating, and other units are not affected.
Содержание Aqua Tempto Power Series
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Страница 67: ...MCAC ATSM 2014 09 Aqua tempo power series tropical air cooled scroll chiller 50Hz 65 6 7 MGBT F120W RN1...
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