Bosch TRONIC 4000 C - Wiring Diagrams

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Installation Manual
Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
7.4.1 Wiring Diagrams
Figure 12
1. Terminal block
2. Thermal Cutout (Manual Reset)
3. Thermal Cutout (Auto Reset)
4. Relay
5. Switch 0- Off
1- Low
2- Medium
3- High
6. Heating element
7. Flow sensor
1. Terminal block
2. Thermal Cutout (Manual Reset)
3. Thermal Cutout (Auto Reset)
4. Relay
5. Switch 0- Off
1- Low
2- Medium
3- High
6. Heating element
7. Flow sensor
1. Terminal block
2. Thermal Cutout (Manual Reset)
3. Thermal Cutout (Auto Reset)
4. Relay
5. Switch 0- Off
1- Low
2- Medium
3- High
6. Heating element
7. Flow sensor
TR4000C-8 (240V)
TR4000C-10 (240V) , TR4000C-13 (240V)
1. TR4000C-3 (120V) - Install Line 1 (L1), Ground (G), Neutral (N)
2. TR4000C-6 (240V) - Install Line 1 (L1), Ground (G), Line 2 (L2)
12
7
34 5 6
R.R
85
º
85
º
42
º
L1
G
L2
2
34 6
15
7
R.R
85
º
Relay
Switch
Relay
85
º
42
º
L1
G
L2
7
2
46
15
85
º
Relay
1
H.E 1
H.E 2
H.E 3
Relay
2
Switch
85
º
L1
G
L2
R.R
42
º
57
º
3
(N)
Switch
Relay