Daikin VRV IV+ RXYTQ10U5/U7YF, Installation And Operation Manual

Page: 38 / 44

20 Technical data
Installation and operation manual
38
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P546223-1C – 2021.11
20.2 Piping diagram: Outdoor unit
Piping diagram: RXYTQ8
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
u
v
a Compressor
(M1C) l Solenoid valve, oil
accumulator
(Y2S)
b Compressor
(M2C) m Solenoid valve,
oil1 (Y3S)
c Heat exchanger n Solenoid valve,
oil2 (Y4S)
d Fan o 4‑way valve, main
(Y1S)
e Fan motor (M1F,
M2F) p 4‑way valve, sub
(Y5S)
f Accumulator q Electrical
component box
g Expansion valve,
main (Y1E) r Service port,
refrigerant charge
h Expansion valve,
subcool heat
exchanger (Y2E) s Stop valve, liquid
i Expansion valve,
storage vessel
(Y4E) t Stop valve, gas
j Subcool heat
exchanger u Expansion valve,
liquid cooling
(Y3E)
k Oil separator v Service port
Piping diagram: 12
R3T
R6T
R5T
R7T
R4T
R21T
j
h
v
o
f
l
m
k
a
t
s
r
INV
sv
sv
M1C
(S1NPL)
(S1NPH)
(S1PH)
HPS
R8T
c
e
d d
e
M
M1F
M
M2F
R1T
g
u
a Compressor
(M1C) l Solenoid valve, oil
accumulator
(Y2S)
b Compressor
(M2C) m Solenoid valve,
oil1 (Y3S)
c Heat exchanger n Solenoid valve,
oil2 (Y4S)
d Fan o 4‑way valve, main
(Y1S)
e Fan motor (M1F,
M2F) p 4‑way valve, sub
(Y5S)
f Accumulator q Electrical
component box
g Expansion valve,
main (Y1E) r Service port,
refrigerant charge
h Expansion valve,
subcool heat
exchanger (Y2E) s Stop valve, liquid
i Expansion valve,
storage vessel
(Y4E) t Stop valve, gas
j Subcool heat
exchanger u Expansion valve,
liquid cooling
(Y3E)
k Oil separator v Service port
Piping diagram: 16
a b
k k
n m
f
l
j
o
t
s
h
c
e
d d
e
M
sv
sv
INV INV
sv
M1C
M2C
M1F
M
M2F
(S1NPH)
(S1NPL)
(S1PH) (S2PH)
HPS
R6T
R5T
R1T
R9T R8T
R21T
R22T
R3T
HPS
r
R4T
g
u
v
a Compressor
(M1C) l Solenoid valve, oil
accumulator
(Y2S)
b Compressor
(M2C) m Solenoid valve,
oil1 (Y3S)
c Heat exchanger n Solenoid valve,
oil2 (Y4S)
d Fan o 4‑way valve, main
(Y1S)
e Fan motor (M1F,
M2F) p 4‑way valve, sub
(Y5S)
f Accumulator q Electrical
component box
g Expansion valve,
main (Y1E) r Service port,
refrigerant charge
h Expansion valve,
subcool heat
exchanger (Y2E) s Stop valve, liquid
i Expansion valve,
storage vessel
(Y4E) t Stop valve, gas
j Subcool heat
exchanger u Expansion valve,
liquid cooling
(Y3E)
k Oil separator v Service port
20.3 Wiring diagram: Outdoor unit
Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below: