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Technical data
Installer and user reference guide
166
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11
Piping diagram: RYMQ14~20
R3T
R6T
R5T
R7T
R1T
R21T
R22T
a
b
n
m
k
k
f
l
j
o
p
h
e
d
d
e
c
sv
M
sv
INV
INV
sv
M2F
M
M1F
M2C
M1C
(S1NPH)
(S1PH)
(S2PH)
(S1NPL)
t
u
s
HPS
R9T
R8T
HPS
r
R4T
g
x
w
a
Compressor (M1C)
m
Solenoid valve, oil1 (Y3S)
b
Compressor (M2C)
n
Solenoid valve, oil2 (Y4S)
c
Heat exchanger
o
4‑way valve, main (Y1S)
d
Fan
p
4‑way valve, sub (Y5S)
e
Fan motor (M1F, M2F)
q
Electrical component box
f
Accumulator
r
Service port, refrigerant charge
g
Expansion valve, main (Y1E)
s
Stop valve, liquid
h
Expansion valve, subcool heat
exchanger (Y2E)
t
Stop valve, gas
i
Expansion valve, storage vessel
(Y4E)
u
Stop valve, equalising gas
j
Subcool heat exchanger
v
Heat accumulation element
k
Oil separator
w
Service port
l
Solenoid valve, oil accumulator
(Y2S)
x
Expansion valve, liquid cooling
(Y3E)
Piping diagram: RXYQ8~12
R3T
R6T
R5T
R7T
R1T
R21T
j
h
e
c
o
f
l
m
k
a
d
t
s
r
INV
M
sv
sv
M1C
M1F
(S1NPL)
(S1NPH)
(S1PH)
HPS
R8T
R4T
g
x
w
a
Compressor (M1C)
m
Solenoid valve, oil1 (Y3S)
b
Compressor (M2C)
n
Solenoid valve, oil2 (Y4S)
c
Heat exchanger
o
4‑way valve, main (Y1S)
d
Fan
p
4‑way valve, sub (Y5S)
e
Fan motor (M1F, M2F)
q
Electrical component box
f
Accumulator
r
Service port, refrigerant charge
g
Expansion valve, main (Y1E)
s
Stop valve, liquid
Summary of Contents for RYYQ8U7Y1B
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