Installation Of Controllers; Test Running; Trial Operation And Testing - McQuay MQS-174018-CFC216A Installation And Operation Manual

DC Inverter U-match Series Floor Ceiling Type Unit
Remove the big handle (18~36K) /front board(48~60K) of the outdoor unit and
insert the end of the communication cord and the power cable into the terminal board.
Single phase:

6 Installation of Controllers

Refer to the Installation Manual of the controller for more details.

7 Test Running

7.1 Trial Operation and Testing

(1). The meaning of error codes as shown below:
Number Error code
1
2
3
4
5
6
7
8
9
10
E1 Compressor high pressure protection
E2
Compressor low pressure protection, refrigerant
E3
lack protection and refrigerant colleting mode
E4 Compressor high discharge temperature protection
E6
E8
E9
F0 Indoor ambient temperature sensor error
F1 Evaporator temperature sensor error
F2 Condenser temperature sensor error
Fig. 4.31
Table 6.1
Error
Indoor anti-freeze protection
Communication error
Indoor fan motor error
Full water protection
30
Remarks