DC Inverter Air
16— TE(T3 OR OPT), condenser defrosting temperature sensor
input 17— TP, compressor exhaust temperature sensor input
18— TS(T5), compressor return air temperature sensor
input 19— Reserved interface for temperature sensor 20—
PID of piping length
21— Spot‐inspection button
22— LPS, high pressure switch
23— DC motor B of outdoor unit
24— DC motor A of outdoor unit
25— LED display whole running state;
26— fuse
27— L, motherboard power supply input, 220‐240V
28— HPS, high pressure switch
29— Australia Power Grid Detection DRAM
30— Current transducer interface, detect compressor input current
31— 4‐WAY, 220‐240V
32— SV2, reserved 220‐240V
33— SV1, reserved 220‐240V
2) Spot‐inspection Description of Outdoor Unit
Normal frequency value, defrosting d+
frequency value, return oil C +
display number 8=PMV actual
Capacity need of indoor unit
Indoor ambient temperature (T1 OR RT)
Condenser central temperature (Tc)
Outdoor ambient temperature (T4)
Inverter exhaust temperature (Tp)
Inverter compressor phase current
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