25
|
Technical data
Installer and user reference guide
167
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11
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: RXYQ14~20
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
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)
25.3 Wiring diagram: Outdoor unit
Refer to the wiring diagram sticker on the unit. The abbreviations used are listed
below:
INFORMATION
The wiring diagram on the outdoor unit is only for the outdoor unit. For the indoor
unit or optional electrical components, refer to the wiring diagram of the indoor unit.
1
This wiring diagram applies only to the outdoor unit.
2
Symbols (see below).
3
When using the optional adapter, refer to the installation manual of the
optional adapter
Summary of Contents for RYYQ8U7Y1B
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