14
Installation instructions 0020140122_04
12
230 V~ 0 ...24 V
12f
VR 66
NTC
BUS
- +
2 1
DHW OFF
N L
DHW ON
N L
CH1
N L
230V~
N L
230 V~
230 V~
CYL
2 1
CH2
CYL
CH1
DHW ON
DHW OFF / CH2
BUS
NTC
2
2
9b1
M
230 V~
230 V~ 0 ...24 V
L
N
X1
230 V~
X12
L
N
L
N
BUS
24V=
RT
- +
Burn.
off
X13
Opt.2
X16
Opt.1
X100
X41
X40 X51
X35
X31
X32
0( )
0( )
DCF
RF
AF
FB
1
ecoTEC plus
X36
9b2
M
12q
BUS
PWR
LAN
VR 921
230 V~
12a
3.3
Type designation and serial number
Data plate location:
1
3.4
Data plate description
The data plate certifies the country where the product is
intended to be installed.
The data plate contains the following data:
Abreviation/symbol
Description
Brand and Product name
Vaillant VR 66/2
Model
Product article number
V/Hz
Hz Voltage / Frequency
T
Temperature range
Serial-no
Product serial number
VA
Power Consumption
