Mark HCNI 533, Technical Manual

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17
EN
3.5 Outdoor Units’ Printed Circuit Diagram abbreviations
No. Name CN# Meaning
1
Power Sup-
ply
CN3 Earth: connect to Ground.
CN1 N_in: connect to N-line (208-230V AC input).
CN2 L_in: connect to L-line (208-230V AC input).
2 S CN16 S: connect to indoor unit communication.
3 HEAT1 CN17 Connect to compressor heater, 208-230V AC when
is ON.
4 4-WAY CN60 Connect to 4 way valve, 208-230V AC when it is ON.
5 HEAT2 CN15 Connect to chassis heater, 208-230V AC when it is
ON.
6 AC-FAN CN25 Connect to AC fan.
7 TP, T4, T3 CN21/CN22 Connect to pipe temp. sensor T3, ambient temp.
sensor T4, exhaust temp. sensor TP.
8 PMV CN31 Connect to Electric Expansion Valve.
9 DC-FAN CN7 Connect to DC fan.
10 TESTPORT CN6 Used for testing.
11
W CN28 Connect to compressor.
V CN29 0V AC (standby).
U CN30 10-200V AC (running).