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Technical data
Installer and user reference guide
138
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11
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