M thermal Mono
202008                                                                                                                                                                                                                    33
2.3 Digital Display Output 
Table 4-2.5: Digital display output in different operating states
 
Outdoor unit state 
Parameters displayed on hydronic 
system DSP1 
Parameters displayed on refrigerant 
system DSP1 
On standby  0  0 
Normal operation  Leaving water temperature (°C) 
Running  speed 
rotations per second 
Error or protection    Error or protection code    Error or protection code 
2.4 Modbus Function   
Figure 4-2.6: Connection   
Figure 4-2.7: Wiring 
 
Unit 
Wired controller                                      Modbus 
Max 16 units 
Midea CAC