Daikin RXJ42A2V1B, Installation Manual

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14 Technical data
Installation manual
15
RXJ42+50A
R32 split series
3P512025-12X – 2021.12
Symbol Meaning
S*T Thermostat
S*RH Humidity sensor
S*W, SW* Operation switch
SA*, F1S Surge arrester
SR*, WLU Signal receiver
SS* Selector switch
SHEET METAL Terminal strip fixed plate
T*R Transformer
TC, TRC Transmitter
V*, R*V Varistor
V*R Diode bridge, Insulated-gate
bipolar transistor (IGBT) power
module
WRC Wireless remote controller
Symbol Meaning
X* Terminal
X*M Terminal strip (block)
Y*E Electronic expansion valve coil
Y*R, Y*S Reversing solenoid valve coil
Z*C Ferrite core
ZF, Z*F Noise filter
14.2 Piping diagram
14.2.1 Piping diagram: Outdoor unit
PED categories of equipment:
▪ High pressure switch: category IV,
▪ Compressor: category II;
▪ Other equipment: art. 4§3.
b
a
c
d
m
m
m
j3
n
o
l
e
j1
i1
i2
i3
j2
k
f
h
g
a Liquid field piping j3 Discharge pipe thermistor
b Gas field piping k Heat exchanger
c Liquid stop valve l 4-way valve (ON: heating)
d Gas stop valve m Muffler
e Liquid receiver n Compressor
f Filter o Accumulator
g Electronic expansion valve HPS High pressure switch (automatic reset)
h Muffler with filter M Propeller fan
i Capillary tube 1~3 Refrigerant flow: cooling
j1 Outdoor temperature thermistor Refrigerant flow: heating
j2 Heat exchanger thermistor