Wiring Diagram: Outdoor Unit - Daikin VRV IV+ RYYQ14U7Y1B Series Installer And User Manual

26.3 Wiring diagram: Outdoor unit

RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1B – 2020.10
Piping diagram: RXYQ14~20
j
R6T
R5T
h
(S1NPL)
R3T
f
s
t
r
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)
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
x
d
w
e
M
R4T
M1F
g
c
o
(S1NPH)
k k
HPS
(S1PH)
R21T
m n
b
a
R8T
INV INV
M2C
M1C
l
sv
26 Technical data
|
R1T
d
e
M
M2F
HPS
(S2PH)
R22T
R9T
Installer and user reference guide
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