Daikin VRV 5-S Series - 21.3 Checking Compressor Insulation Resistance

20 | Electrical installation
Installer and user reference guide
115
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
b
c
a
a Knockout hole
b Burr
c Sealant etc.
10 Reattach the service cover. See "17.2.3To close the outdoor unit"[476].
11 Connect an earth leakage circuit breaker and fuse to the power supply line as
specified in "20.1.6Specifications of standard wiring components"[4111].
20.3 To connect the external outputs
SVS output
The SVS output is a contact on terminal X2M that closes in case a leak is detected,
failure or disconnection of the R32 sensor (located in the indoor unit).
a
b
X2M
a SVS output terminals (1 and 2)
b Cable to SVS output device
SVS connection requirements
Voltage <40VDC
Maximum current 0.025A
Wire size Only use harmonised wire providing double
insulation and suitable for 220~240V
2-core cable
Minimum cable section of 0.75mm²
Polarity of terminal 1 +
Polarity of terminal 2 –
It is mandatory to use a surge killer to protect the internal circuit of the outdoor
unit PCB (e.g. a separate surge killer diode or a relay with a built-in surge killer
diode).
Example:
1
X2M
2
+
–
24 V DC
240 V AC
+
–
a
b
e
d
c
f
a SVS output terminal
b DC power supply
c Relay
d Surge killer diode