Mars DVH Series - Page 30

Service Manual - DVH 09/12/18/24 SF Series
Service Manual - DVH 09/12/18/24 SF Series
30
30
For A-DVH18SF-1, A-DVH24SF-1
Service Manual - DVH 09/12/18/24 SF Series
30
30
For A-DVH18SF-1, A-DVH24SF-1
Outdoor unit printed circuit board diagram: 17122000036588
No. Name CN# Meaning
1 Power Supply
CN3 Earth: connect to Ground
CN7 N_in: connect to N-line (208-230V AC input)
CN8 L_in: connect to L-line (208-230V AC input)
2 S CN3 S: connect to indoor unit communication
3 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON.
4 HEAT1 CN17 connect to compressor heater, 208-230V AC when is ON
5 AC-FAN CN11 connect to AC fan
6 HEAT2 CN16 connect to chassis heater, 208-230V AC when is ON
7 CN38 CN38 connect to PC communication
8 PMV CN18 connect to Electric Expansion Valve
9 DC-FAN CN414 connect to DC fan
10 FAN_IPM IPM 501 IPM for DC fan
11 CN19 CN19 internal drive motor
12 TESTPORT CN23 used for testing
13 CN9 CN9 connect to PC communication
14
U CN28 connect to compressor
V CN29 0V AC (standby)
W CN30 10-200V AC (running)
15 COMP_IPM IPM 301 IPM for compressor