17 | Technical data
Installer reference guide
75
4MWXM-A9
R32 Split series
4P708645-1 – 2022.09
▪ Compressor: category II
▪ Accumulator: category II
▪ Other components: refer to PED article 4, paragraph 3
r-A
r-B
r-C
r-W
s
t
t
t
s
t
s
t
s
t
d
d
e
f
k
a
b
c
g
g
j
j
g
i
d
v-A
v-B
v-C
v-A
v-B
v-C
v-W
v-W
u
u
u
u
p
y
z
p
o o
n
l
m
w
x
q
q
h
4MWXM52
a Heat exchanger k 4-way valve u Thermistor (gas)
b Outdoor air temperature
thermistor
l Muffler v Room (A, B, C) and Domestic
hot water tank (W)
c Heat exchanger thermistor m Discharge pipe thermistor w Field piping – liquid
d Refnet header n Compressor x Field piping – gas
e Fan motor o Accumulator y Twin-branched muffler
f Propeller fan p Gas stop valve z Pressure sensor
g Capillary tube q Liquid stop valve
h Distributor r Electronic expansion valve HPS High pressure switch
(automatic reset)
i Muffler with filter s Thermistor (liquid) Refrigerant flow: cooling
j Solenoid valve t Filter Refrigerant flow: DX
heating / DHW