To Connect The Cool/Heat Selector Switch Option - Daikin VRV 5 S Series Installer And User Manual

20 | Electrical installation

20.4 To connect the cool/heat selector switch option

Installer and user reference guide
116
e AC power supply
f External alarm
SVEO output
The SVEO output is a contact on terminal X1M that closes in case of occurrence of
general errors. See "10.1 Error codes:
4
Overview" [ 148] for errors that will trigger this output.
Voltage
Maximum current
Wire size
For the SVEO connection it is recommended to use a shielded cable. The cable
shield must be earthed at the marked earthing point that is located on the support
frame of the terminal.
X1M
1 2
a
b
c
a Earthing point
b Cable shield
c Cable to SVEO output device
INFORMATION
Sound data about the refrigerant leakage alarm are available in the technical data
sheet of the user interface. E.g. the BRC1H52* controller generates an alarm of 65 dB
(sound pressure, measured at 1 m distance from the alarm).
In order to control the cooling or heating operation from a central location, the
following optional cool/heat selector switch (KRC19-26A) can be connected:
1 Remove the mounting screw from the terminal mounting plate.
V1
2 Turn the terminal mounting plate to reach the other side of the plate.
Overview" [
SVEO connection requirements
Only use harmonised wire providing double
insulation and suitable for the applicable voltage
2-core cable
Minimum cable section of 0.75 mm²
V1
X1M
1 2
Y1
4
45] and "26.3.1 Error codes:
220~240 V AC
0.5 A
Y1
a
b
c
VRV 5-S system air conditioner
4P600330-1D – 2023.02
RXYSA4~6A7V/Y1B