AH(D)(DS)

Electrical diagrams

COMPONENTS

A Controller B Fan

C Compressor

D Electric element

E Magnet valve (short or long circuit) F Display

(integrated in the control)

G Temperature sensor (T5 - solar coil) H Temperature sensor (T6 - solar coil) J Temperature sensor

(T7 top of the tank) K Temperature sensor

(T8 bottom of the tank) L High pressure switch

M Double pole mains switch

Connections solar controller

1

-

 

 

-

2

-

 

 

-

3

N

Magnet valve

4

L

(short or long circuit)

5

L

Electric element

6

N

 

7

L

Compressor

8

N

 

9

L1

 

10

N

Power supply

11

 

 

 

 

 

12

L

Fan

13

N

 

25

-

 

 

-

26

-

 

 

-

27

-

 

 

Temperature sensor

28

-

 

 

(T5 - solar coil)

29

-

 

 

Temperature sensor

30

-

 

 

(T6 - solar coil)

31

-

 

 

Temperature sensor

32

-

 

 

(T7 top of the tank)

33

-

 

 

Temperature sensor

34

-

 

 

(T8 bottom of the tank)

35

-

 

 

-

36

-

 

 

-

37

-

 

 

High pressure switch

38

-

 

 

 

 

 

AH(D)(DS)

Dimensions

 

 

AH 290

AHD 290

 

 

 

 

 

A

Total height

1815

1840

 

B

Unit height

1790

1790

 

D

Diameter unit

660

660

 

G1

Diameter air-intake

-

160

 

G2

Diameter air outlet

-

160

 

H

Height-air intake / air outlet

1815

1840

 

Hx1

x-position air intake

-

190

 

Hx2

x-position air outlet

-

480

 

Hy1

y-position air intake

-

200

 

Hy2

y-position air outlet

-

470

 

J

Height air intake / air outlet

-

55

 

M

Height cold water inlet

110

110

 

N

Height hot water outlet

1410

1410

 

P

Height cleanout

45

650

 

T

Height heat exchanger inlet

-

-

 

U

Height heat exchanger outlet

-

-

 

V

Height circulation connection

820

820

 

W

Height condensate outlet

1345

1345

 

Z

Height electric element

925

925

 

1

Cold water connection (male)

R 1”

R 1”

 

2

Hot water connection (male)

R 1”

R 1”

 

6

Clean out opening

Ø 110

Ø 110

 

7

Condensate outlet (male)

Ø 12

Ø 12

 

11

Electric element

-

-

 

14

Circulation connection (female)

R 1”

R 1”

 

On all AH(D)(DS) heatpumps a warranty of 5 years on the tank will apply and 1 year on all parts.

subject to change INT/0808/AH/02

and conditions apply, please refer to our website.

Data

Terms

www.aosmithinternational.com

Page 4
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A.O. Smith AH - 290, AHD 290, AHDS 290 manual Electrical diagrams, Dimensions

AHDS 290, AHD 290, AH - 290 specifications

A.O. Smith AHD 290, AHDS 290, and AH-290 are notable products in the realm of water heating technology, characterized by their robust design, energy efficiency, and advanced features tailored to meet the heating needs of both residential and commercial applications.

The AHD 290 model is engineered with a focus on durability and performance. This water heater utilizes a high-quality insulated tank that helps in maintaining optimal water temperature while minimizing heat loss. The durable glass-lined tank contains a specially formulated coating that prevents rust and corrosion, ensuring the longevity of the unit. With a capacity of 290 liters, it is ideal for larger households or small businesses that require a significant amount of hot water on demand.

The AHDS 290 variant builds upon the foundation set by the AHD 290, introducing additional features aimed at enhancing user experience and energy efficiency. One of its standout characteristics is the digital thermostat control, allowing users to set and maintain their preferred water temperature with precision. Additionally, the AHDS 290 comes equipped with advanced insulation technology, significantly reducing standby heat loss and promoting energy savings.

Meanwhile, the AH-290 model complements its counterparts with improvements in its heating technology. Featuring a high-efficiency heating element, the AH-290 delivers rapid heating capability without compromising energy consumption. Its smart water heating system optimizes the operational efficiency of the heater, ensuring that energy is utilized effectively. This model also boasts an impressive recovery rate, meaning it can replenish hot water quickly, catering to high demand scenarios.

In terms of safety, all three models incorporate essential features such as a temperature and pressure relief valve to prevent overheating and excessive pressure, enhancing user safety. An LED indicator light may also be included to signal when the heating element is active.

Overall, A.O. Smith's AHD 290, AHDS 290, and AH-290 models represent cutting-edge water heating solutions. They combine reliability, efficiency, and advanced technology to cater to diverse heating requirements, making them a valuable addition in any setting, whether residential or commercial. With their strong focus on user satisfaction, these models stand out in the competitive market of water heaters.