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Technical data
Installer and user reference guide
127
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
Piping diagram: RYYQ14~20
R3T
R6T
R5T
R7T
R1T
R21T
a
b
n
m
k
k
e
d
d
e
f
l
j
i
o
p
t
s
r
v
h
c
sv
INV
INV
HPS
sv
sv
HPS
M2F
M
M1F
M
M2C
M1C
(S1NPH)
(S1NPL)
(S1PH)
(S2PH)
R22T
R9T
R8T
R4T
g
x
w
a
Compressor (M1C)
b
Compressor (M2C)
c
Heat exchanger
d
Fan
e
Fan motor (M1F, M2F)
f
Accumulator
g
Expansion valve, main (Y1E)
h
Expansion valve, subcool heat exchanger (Y2E)
i
Expansion valve, storage vessel (Y4E)
j
Subcool heat exchanger
k
Oil separator
l
Solenoid valve, oil accumulator (Y2S)
m
Solenoid valve, oil1 (Y3S)
n
Solenoid valve, oil2 (Y4S)
o
4‑way valve, main (Y1S)
p
4‑way valve, sub (Y5S)
q
Electrical component box
r
Service port, refrigerant charge
s
Stop valve, liquid
t
Stop valve, gas
u
Stop valve, equalising gas
v
Heat accumulation element
w
Service port
x
Expansion valve, liquid cooling (Y3E)
Summary of Contents for VRV IV+
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