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Wiring diagrams
Thermostat and 2-step control
The thermostat controls heat and fan
KRT1900/KRTV19
CB20
TKS16
CB20
8
SWL
SWL02-33
SWL02-33
SD20
TVVS20/25
C
3
2
1
KRT/V
SWL02-33
A
SWL02-33
A
SD20
TVVS20/25
TKS16
5
6
>t C
7
2
2o
4
1
2
3
4
5
6
L
N
A
A
1
2
3
4
5
6
L
N
L
N
~
230V
1
1
3
4
4
2
5
o
o
1
1/2 o
o
0
CB20
1
2
3
4
5
6
L
N
1
2
3
4
5
6
L
N
L
N
~
230V
1
1
2
3
4
4
5
7
o
o
1
1/2 o
o
0
CB20
SWL
2+
4+
230V
SD20
CB20
3+
KRT/V
7
7
SWL
2+
5
SD20
CB20
4
TKS16
7
2+
~
2+
~
230V
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