Download  Print this page

Function - Bosch TRONIC 3000C Pro US3 Installation Manual And Operating Instructions

Electric water heaters
Hide thumbs

Advertisement

Table of Contents
2.7

Function

How the water heater works:
Water comes in through the cold water inlet.
The heater is designed for cold water supply
only. Do not supply with pre-heated water.
The flow switch senses how much water is passing through
the unit. If it detects more than the preset level, the unit's
heating elements switch on. This is shown by the neon light
glowing.
The water is heated instantly as it passes through the
copper heat exchanger tube.
The temperature of the water coming out of the unit depends
on:
The voltage of the electrical supply,
The temperature of the incoming water supply,
The setting of the power selector,
The flow rate,
The power rating of the unit.
Model
Volts
Amps
US9
240
40
US9
240
20
US9
208
35
US9
208
18
US6
277
22
US6
277
11
US3
120-110
27
US7
240-220
30
US7
240-220
15
Table 4
Manual reset thermal cut-out
The unit has a thermal cut-out (Fig. 1 ) which is mounted on
the heat exchanger tube. This will switch off the heater
elements if the water temperature goes above 194 °F.
If the cut-out trips it will need to be reset manually inside the
unit. This cut-out will only operate in exceptional
circumstances (Fig. 3 ). Call your service person or Bosch
Water Heating if this happens frequently.
TRONIC 3000C Pro
Element
High
Resistance
Setting
2x12
9,5kW
1x12
-
2x12
7,1kW
1x12
-
2x25
6,0kW
1x25
-
2x8
3,4-3,0kW
2x16
7,2-6,1kW
1x16
-
Depending on the region of the country, the temperature of
the water supply can vary between 40 °F in winter to 70 °F
in summer, with an average of 50 °F.
Fig. 3
[A] Manual reset thermal cut out
The table below shows the rise in water temperature you can
expect from the unit:
Low Setting
Temperature Rise (deg F) at Flow Rate (GPM)
0,5
0,75
GPM
GPM
-
NA
4,75kW
NA
-
NA
3,5kW
NA
-
81F
3,0kW
41F
-
41F
-
NA
3,6- 3,05kW
NA
Information about the heater | 7
1,0
1,5
GPM
GPM
84F
64F
42F
42F
32F
21F
64F
48F
32F
32F
24F
16F
55F
42F
27F
28F
21F
14F
28F
20F
NA
63F
48F
32F
32F
24F
16F
6 720 647 005 (2014/04)
2,0
2,5
GPM
GPM
32F
NA
16F
NA
24F
NA
12F
NA
NA
NA
NA
NA
NA
NA
24F
NA
12F
NA

Advertisement

Table of Contents
loading

  Also See for Bosch TRONIC 3000C Pro US3

  Related Manuals for Bosch TRONIC 3000C Pro US3