Mgbt-F180W/Rn1 - Midea Aqua Tempto Power Series Manual

MCAC-ATSM-2014-09

2.5 MGBT-F180W/RN1

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1 Detection of current of compressor B (protection code P5)
Detection of current of compressor A (protection code P4)
Current is not detected within the initial 5 seconds after the compressor is started up. When the current of the
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compressor is detected to exceed protective value set (33A for constant speed compressor), it will be shut down and
re-started after 3 min.
T4: outdoor ambient temp. sensor (fault code E7)
T3B: pipe temp. sensor of the condenser B (fault code E6 and protection code P7)
T3A: pipe temp. sensor of the condenser A (fault code E5 and protection code P6)
1) T4: if there is one system that requires starting outdoor fans, the fans are started through electric control of the unit.
Start outdoor fan A only, start A and B gears, and control the unit through T4.
2) T3B and T3A: when the electric control of the modular unit detects the temp. of the outdoor pipe T3A or T3B of the
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system exceeds the protective temp. 65。C, the corresponding system will be shut down. And it will be re-started up,
after the temp. drops below the recovery temp. 60。C. Another system will be not affected.
3) T4, T3B and T3A: when the temp. sensor is detected to suffer open circuit or short circuit, fault alarm will occur.
● When the main unit suffer fault of temp. sensor: the main unit and subordinate units will be shut down.
● When the subordinate unit suffer fault of temp. sensor: the unit will be shut down, but other subordinate units will not
be affected.
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(Reserved)
Unit outlet water temp. sensor (fault code E4)
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Under refrigeration mode and heating mode, conduct adjustment according to the magnitude of unit outlet water temp..
Adjustment range of constant speed capability: ON and OFF.
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Aqua tempo power series tropical air-cooled scroll chiller 50Hz
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