20 Technical data
Installation and operation manual
43
RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546221-1B – 2020.10
20.2
Piping diagram: Outdoor unit
INFORMATION
For a legend explaining the figures below, refer to the end
of this topic.
Piping diagram: RXYQQ8~12
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
(S3PH)
HPS
(S2PH)
HPS
R8T
R4T
g
u
q
Piping diagram: RXYQQ14~20
(S4PH)
HPS
(S3PH)
HPS
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
q
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 (Y3E)
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
Service port
r
Service port, refrigerant charge
s
Stop valve, liquid
t
Stop valve, gas
u
Expansion valve, liquid cooling (Y3E)
20.3
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
4
For connection wiring to indoor–outdoor transmission F1‑F2,
outdoor‑outdoor transmission F1‑F2, outdoor‑multi
transmission Q1‑Q2, refer to the installation manual.
5
How to use BS1~BS3 switch, refer to the "Service
Precaution" label on the electrical component box cover.
6
When operating, do NOT short-circuit the protection devices
(S1PH).
7
Only for RYYQ model
8
Only for RYYQ/RYMQ model
9
For 8~12 HP: Connector X1A (M1F) is white, connector X2A
(M2F) is red.
9
For 14~20 HP: Colours (see below).
10
Colours (see below).
Symbols:
Field wiring
Terminal block
Connector
Terminal
Protective earth
Noiseless earth
Earth wiring
Field supply
PCB
Switch box
Option
Colours:
BLK
Black
RED
Red
BLU
Blue
WHT
White
GRN
Green
Legend for wiring diagram 8~12 HP:
A1P
Printed circuit board (main)
A2P
Printed circuit board (noise filter)
A3P
Printed circuit board (inverter)
A4P
Printed circuit board (fan)
A5P
Printed circuit board (ABC I/P) (option)
BS1~BS3
(A1P)
Push button switch (MODE, SET, RETURN)
C* (A3P)
Capacitor
DS1, DS2
(A1P)
DIP switch
E1HC
Crankcase heater
Содержание VRV IV Q+ Series
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