A.O. Smith AHD 290, AH - 290, AHDS 290 manual Installation diagrams, Ahdds

AH(D)(DS)

Installation diagrams

	A	Cold water
Vented	B	Hot water
	C	Return circulation

1 Pressure reducing valve

4 Stop valve

5 Non return valve

6 Circulation pump

9 Drain valve

11 Isolating valve

12 Temperature gauge

13 Condensate drain

14 Hot water outlets

15 Expansion relief valve

16 Expansion vessel

17 Three-way valve

18 Hot water tank

19 Float valve

Unvented

Vented (AHDS)

At this moment the AHDS for solar applications is being fine-tuned by our Engineering Department. For more information, please contact our Technical Support Group.