Daikin VRV 5-S Series - 22.2 Making Field Settings

20 | Electrical installation
Installer and user reference guide
117
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
Y1V1
3 Connect the cool/heat selector switch to terminal X3M.
Y1V1
X3M X3M
KRC19-26A
1
2
3
A
B
C
X3M
X3M Terminal on the unit
KRC19-26A Cool/heat selector switch
4 Turn back the terminal mounting plate and reinstall the screw.
5 Fix the cables with cable ties.
V1
b
a
Y1
b
a
X3M X3M
a Cool/heat selector switch cable
b Cable tie
6 Turn ON the DIP switch (DS1‑1). See "22.2.3Field setting components"[4123]
for more information on the DIP switch.
OFF
ON
1 2 3 4
DS1 DIP switch 1
20.5 To check the insulation resistance of the compressor
NOTICE
If, after installation, refrigerant accumulates in the compressor, the insulation
resistance over the poles can drop, but if it is at least 1 MΩ, then the unit will not
break down.
▪ Use a 500V mega-tester when measuring insulation.
▪ Do NOT use a mega-tester for low voltage circuits.