26 | Technical data
Installer and user reference guide
169
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10
R13T Thermistor (receiver gas)
R14T Thermistor (auto charge)
R15T Thermistor (compressor body)
R21T Thermistor (M1C discharge)
S1NPH Pressure sensor (high)
S1NPL Pressure sensor (low)
S1PH Pressure switch (discharge)
SEG1~SEG3 (A1P) 7-segment display
T1A Current sensor
V1D (A3P) Diode
V1R (A3P, A4P) Power module
X*A Connector
X1M Terminal block
X1M (A1P) Terminal block (control)
Y1E Electronic expansion valve (heat exchanger upper)
Y2E Electronic expansion valve (subcool heat exchanger)
Y3E Electronic expansion valve (heat exchanger lower)
Y4E Electronic expansion valve (receiver gas)
Y5E Electronic expansion valve (inverter cooling)
Y6E Electronic expansion valve (auto charge)
Y2S Solenoid valve (liquid pipe)
Y3S Solenoid valve (high pressure/low pressure gas pipe)
Y4S Solenoid valve (heat exchanger lower)
Y5S Solenoid valve (heat exchanger upper)
Y11S Solenoid valve (M1C oil return)
Z*C Noise filter (ferrite core)
Z*F (A2P) Noise filter (with surge absorber)
Connector for optional accessories:
X10A Connector (bottom plate heater)
Legend for wiring diagram 14~20 HP:
A1P Printed circuit board (main)
A2P, A5P Printed circuit board (noise filter)
A3P, A6P Printed circuit board (inverter)
A4P, A7P Printed circuit board (fan)
A8P Printed circuit board (sub)
BS1~BS3 (A1P) Push button switch (MODE, SET, RETURN)
C* (A3P) Capacitor
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