Wiring Diagram: Outdoor Unit - Daikin VRV 5-S User Reference Manual

27 | Technical data

27.3 Wiring diagram: Outdoor unit

Installer and user reference guide
172
e Subcool tube heat exchanger
f Pressure regulating valve
g Heat exchanger
h Service port
i Oil separator
j Capillary tube (2×)
k Charge port
l Heat sink
M1C Compressor
M1F-M2F Fan motor
R1T Thermistor (air)
R3T Thermistor (suction accumulator)
R4T Thermistor (heat exchanger, liquid)
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
Y1E Electronic expansion valve (main)
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)
Cooling
Heating
The wiring diagram is delivered with the unit, located at the inside of the service
cover.
Notes:
1 Symbols (see below).
2 Refer to the installation or service manual on how to use the BS1~BS3
push buttons and DS1~DS2 switches.
3 Do not operate the unit by short-circuiting protection device S1PH.
4 Refer to the installation manual for indoor-outdoor transmission F1-F2
wiring.
5 When using the central control system, connect outdoor-outdoor
transmission F1-F2.
6 The capacity of the contact is 220~240 VAC – 0.5 A. (Rush current needs
3 A or less)
7 Use dry contact for micro-current (1 mA or less 12VDC).
Symbols:
X1M Main terminal
Earth wiring
15
Wire number 15
Field wire
Field cable
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02