A.O. Smith 290 service manual 1.5Water circuit – description

1.5Water circuit – description

The water circuit will be constructed with respect to the applicable norms and re- quirements. Please see the specifications in sections 3.1 and 3.2.

1.5.1Requirements for the water circuit

Depending upon the materials used in the water circuit of the dwelling, incorrect material combinations can lead to corrosion damage due to galvanic corrosion. This requires special attention with the use of galvanized components and components that contain copper.

1.5.2Dimensions

Dimensions (all measurements are in mm, except when indicated other wise)

	Description	AHD 290
A	Total height	1815
B	Height of top of appliance	1790
D	Appliance diameter	660
G1	Air inlet diameter	160
G2	Air outlet diameter	160
H	Height air in-/outlet	1815
Hx1	x-position air inlet	190
Hx2	x-position air outlet	480
Hy1	y-position air inlet	200
Hy2	y-position air outlet	470
J	Height air inlet	60
M	Height of cold water supply	110
N	Height of hot water outlet	1410
P	Height of cleaning opening	45
V	Height of recirculation connection	820
W	Height condensation drain	1345
Z	Height of electric element connection	925
1	Cold water supply connection (male)	R 1”
2	Hot water outlet (male)	R 1”
6	Cleaning/inspection opening	Ø 110
7	Condensation drainage connection (female)	Ø 12
11	Electric element connection (female)	G 1 1/2”
14	Recirculation connection (female)	R 1”

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