Vaillant VCW 2O Instructions For Installation And Servicing page 58

VCW-sine 18 TgW
vcw20/1 T3w
vcw2s/1 T3w
U 6
IUI-
t ( v l !
lValllantl
L--
OVERHEAT
CUT-OFF DEVICE
HEATING
DIFE PRESS SWITCH
SWITCH
(DOM. HOT WATER)
412 br
FLOW SWITCH
A1 to A12 =
81 to 811 =
E1 to E12 =
T 2 t o T s =
bkl to bks=
M u l t i p l u g A
M u l t i p l u g B
Multiplug Electronic
Single Plug on Electronic
Terminals
Black Wire with
Marking Number
8 1 0
g v
T I M E
CONTROL
A N D T O R
ROOMTHERMOSTAT
Fig. 98
NTC-RESISTOR
FROST STAI
58