Vaillant uniTOWER plus User Manual

*****INTERNAL*****30 R_D proof- 26.10.2022 / 09:15:46- VaillantGroup\DOC-agt\Brand\VIH_QW_190_6\ENG\OI-II_GB_0020291525
48 Installation and maintenance instructions 0020291525_04
D Basic connection diagram for the energy supply company lockout, shutdown via
connection S21
3~/400V
1~/230V
BUSS21 BUS
X106
L1L1 L2 L3 NLN
X300
X311
LN
X310
kWh
L1 L2 L3 NLN
X200
BUS
X206
X210
LN
X211
kWh
2
2
N
L1
L2
L3
5 5
BUSS21 BUS
X106
L1L1 L2
L3 N
LN
X300
X311
LN
X310
L1 L2 L3 N
L
N
X200
BUS
X206
X210
LN
X211
2
2
3 3
1 2 3 4
5
6
78910
1 Meter/fuse box
2 Household electricity meter
3 Heat pump electricity meter
4 Ripple control receiver
5 Potential-free normally open contact, for actuating
S21, for the energy supply company lockout function
6 Disconnector (circuit breaker, fuse)
7 System control
8 Indoor unit, control PCB
9 Indoor unit, power supply PCB
10 Outdoor unit, PCB INSTALLER BOARD

Vaillant uniTOWER plus Specifications

General

Brand	Vaillant
Model	uniTOWER plus
Category	Heat Pump
Language	English