27 | Technical data
Installer and user reference guide
174
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
R5T Thermistor (liquid)
R6T Thermistor (subcool heat exchanger gas)
R7T Thermistor (de-icer)
R8T Thermistor (M1C body)
R21T Thermistor (M1C discharge pipe)
S1NPH High pressure sensor
S1NPL Low pressure sensor
S1PH High pressure switch
S1S Air control switch (optional)
S2S Cool/heat switch (optional)
SEG* (A1P) 7-segment display
SFB Mechanical ventilation error input (field supply)
T1A Current sensor
X*A Connector
X*M Terminal strip
Y1E Electronic expansion valve (heat exchanger)
Y2E Electronic expansion valve (subcool heat exchanger)
Y3E Electronic expansion valve (inverter cooling)
Y4E Electronic expansion valve (liquid injection)
Y1S Solenoid valve (4‑way valve)
Y2S Solenoid valve (accumulator oil return)
Y3S Error operation output (SVEO)(field supply)
Y4S Leak sensor output (SVS)(field supply)
Z*C Noise filter (ferrite core)
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