47
Module Control System
Condition 1 Determine on the basis of the set temperature.
Condition 2 Determine on the basis of increasing the set temperature by 0.5 degree
(refrigeration).
Condition 3 Determine on the basis of increasing the set temperature by 1.0 degree
(refrigeration).
Condition 4 Determine on the basis of increasing the set temperature by 1.5 degrees
(refrigeration).
Condition 5 Determine on the basis of increasing the set temperature by 2.0 degrees
(refrigeration).
Note: the heating conditions are opposite.
3) The uploading and downloading conditions of each group are sent by the centralized
controller:
The addition of parameter 0 following the condition change command expresses that the group
1 corresponds to the condition 1,
……
, and the group 5 corresponds to the condition 5;
The addition of parameter 1 following the condition change command expresses that the group
1 corresponds to the condition 2,
……
, and the group 5 corresponds to the condition 1;
The addition of parameter 2 following the condition change command expresses that the group
1 corresponds to the condition 3,
……
, and the group 5 corresponds to the condition 2;
The parameter of condition change command is 0-4.
Note: if the sum of modular host unit and slave units is less than 5, the parameter of condition
change command is 0-(the sum of modular host unit and slave units minus 1).
If the unit is not shut down, the centralized controller will send the change conditions every 24
hours.
If the outdoor unit is started up each time, the centralized controller will send a change condition
command.
Handling of outdoor unit faults
If the slave units receive the water pump and water flow switch fault command of the host unit,
the slave units will be shut down; the slave units will display the host system faults.
If other devices of the host unit are faulty and the water pump is not faulty, the water pump can
not be shut down.
The faults of the slave units shall be correspondingly handled as the case may be.