MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz
119
Adjustment range of constant speed capability: ON and OFF.
7
Inlet water temperature sensor (Fault code EF).
8
Total outlet water temperature sensor (Fault code E3).
Only the main unit is valid, and the subordinate units are invalid.
Under refrigerating mode and heating mode, conduct adjustment according to the magnitude of total outlet water temperature.
Adjustment range: Load, stabilize, unload, Emergency Stop.
9
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.
10
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.
11
Electronic expansion valve of the system B.
12
Numerical code tube.
1) In case of stand-by, the address of the module is displayed.
2) In case of normal operation, 10 is displayed (10 is followed by dot).
3) In case of fault or protection, fault code or protection code is displayed.
13
Electronic expansion valve of the system A.
Electronic expansion valve is used to control refrigerant flow under different operating modes and different loads.
14
Spot check. The operating status of outdoor system can be observed through spot check, and specific display contents are as
shown in the following figure:
●
Display contents of
“
operating mode
”
: 1. cooling; 2. heating; 4. pump; 8. Stand-by.
●
Display contents of
“
number of online units
”
: the main unit can display the number of online units, and the subordinate unit
displays 0.
15
High-pressure protection in system A and discharge temperature switch protection (Protection code P0).
High-pressure protection in system B and discharge temperature switch protection (Protection code P2).
Low-pressure protection in system A (Protection code P1).
Low-pressure protection in system B (Protection code P3).
Constant speed compressor: connection of discharge temperature switch and high-pressure switch of the system in series.
16
Power phase detection(Fault code E8).
17
Water flow detection (Fault code of the main unit E9) is only valid for the main unit but invalid for subordinate units.
1) Main unit: if abnormal water flow occurs for the first and second time, the main unit board will display fault code E9.
2) Subordinate unit: (water flow detection will not be done).
18
COM (I) 485 communication port (Fault code E2).
COM (O) is interconnected with P, Q and E of COM (I), used for RS-485 communication.
1) If faults occur between the wired controller and the main unit module, all modules will be shut down.
2) If faults occur between the main unit and subordinate units, the subordinate unit module suffering communication fault will
be shut down. Less units will be detected by the wired controller, which may display EC, and in the meanwhile, the indicator
Normal display
Operating mode
Operating capability of the compressor B
Number of online units
Outdoor ambient temp. Temp. of the condenser A
T61 frost-proof temp
Unit outlet water temp
Unit outlet-water tempe
Temp. of the condenser B
EXV opening A
EXV opening B
Operating current of system A
Operating current of system B
The last failure
Summary of Contents for MGBT-F120W/PN1
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Page 30: ...MCAC ATSM 2014 09 R410A tropical air cooled scroll chiller unit 60Hz 31 180kW module ...
Page 32: ...MCAC ATSM 2014 09 R410A tropical air cooled scroll chiller unit 60Hz 33 60kW module ...
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Page 34: ...MCAC ATSM 2014 09 R410A tropical air cooled scroll chiller unit 60Hz 35 180kW module ...
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Page 48: ...MCAC ATSM 2014 09 R410A tropical air cooled scroll chiller unit 60Hz 49 MGCT D30W PN1 ...
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Page 51: ...R410A tropical air cooled scroll chiller unit 60Hz MCAC ATSM 2014 09 52 10 2 MGBT F60W PN1 ...
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