230V

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

L

 

 

 

 

 

 

 

 

 

 

 

 

 

Mains

 

 

 

 

 

 

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

M o d e

 

 

 

 

 

 

 

 

 

 

 

switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service connection

1

ELECTRICS

Electrical components: 1 Printed circuit board

2Thermostat - boiler high limit

3 Thermostat - DHW control

4 Thermostat - CH control

5 Indicator lamp - boiler mode

6 Indicator lamp - lock-out

7 Manual reset - overheat thermostat

8 Manual reset - flue overheat thermostat

9 Manual reset - burner lock-out

10 External programmer (not supplied)

11 Burner socket

12 Burner plug

13 Burner control box (12/18 & 18/25 shown)

14 Flow switch

15 Circulating pump

16 Diverter valve

17 Frost stat

18 Frost stat

Wire colour code:

br - Brown

 

gy

gy

bl

bl

or

 

 

bl

br

br

br

X7 g

X6

2

3 2 4

r or g

w w 3

3

2

r r

7

bl

14

br

 

gy

 

bl

15

 

br

 

gy gy bl br

 

X1

y y X11

 

X2

 

 

gy

 

pk

g

 

pk

 

bk

 

X9

 

 

X8

g

 

 

 

w

pk

X12

 

or

 

wy

X10 X13

3

4

pk pk 5 y y 6

4

 

2

 

 

or pk

y

 

r r

 

 

 

 

 

w

w

8

bk r

 

g gy w

 

11 1

 

 

 

 

9

10

 

 

 

 

 

 

2

3

4

5

6

 

 

1

2

3

4

5

6

 

 

12

 

 

 

 

 

 

 

bk r

 

g gy w

 

X3

X4

bl

br

w

g

bl

- Blue

 

gy

- Green/Yellow

INSTALLATION

r

- Red

w

- White

y

- Yellow

g

- Grey

bk - Black

 

or

- Orange

 

pk - Pink

 

 

 

 

 

 

 

 

 

g bk r gy w

gy

 

1

2

3

4

5

6

7

8

9

or

 

16

13

 

 

 

 

 

 

 

 

bl

 

 

A

 

 

 

 

 

br

 

 

 

 

 

 

 

 

 

 

g

 

 

 

 

 

 

 

 

 

 

28

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32 8 716 113 389b (09/07)

ELECTRICS

Page 29
Image 29
Bosch Appliances 12/18, 18/25, 25/32kW Br Brown, Blue Green/Yellow, Red, White, Grey, Bk Black, Orange Pk Pink

25/32kW, 12/18, 18/25 specifications

Bosch Appliances has carved out a reputation for engineering high-performance heating solutions, particularly with their range of heating systems including the 18/25, 12/18, and 25/32 kW models. These systems are designed to meet the diverse needs of residential and commercial spaces while maintaining energy efficiency and sustainability.

The Bosch 18/25 kW model excels in providing an optimal heating solution for medium to large residential properties. It is equipped with a highly efficient condensing boiler that extracts additional heat from flue gases, achieving significant energy savings. The built-in, user-friendly interface allows for easy programming and monitoring, which maximizes user convenience.

The 12/18 kW model provides a versatile opportunity for smaller homes or apartments. Its compact design ensures that it fits seamlessly into tighter spaces without sacrificing performance. The unit operates quietly, making it an excellent choice for residential areas where noise can be a concern. Additionally, it features the latest modulation technology, optimizing energy usage and maintaining consistent temperatures.

Finally, the 25/32 kW model is ideal for larger installations, offering robust performance even in high-demand scenarios. This model benefits from advanced heating management systems that enable intelligent control of heating zones, ensuring efficiency and comfort throughout the property. With its enhanced energy rating, the 25/32 kW model significantly reduces the carbon footprint, aligning with modern sustainability goals.

Across the board, Bosch Appliances integrates advanced technologies such as intelligent diagnostics, smart home compatibility, and eco-friendly materials. All models are constructed with durability in mind, featuring corrosion-resistant heat exchangers and high-quality components designed for longevity.

The customer-focused features, including comprehensive warranty packages and responsive customer service, further exemplify Bosch's commitment to quality. Overall, Bosch Appliances 18/25, 12/18, and 25/32 kW heating systems stand out for their innovative technology, efficient performance, and reliability, making them an excellent choice for those looking to upgrade their heating solutions.