A.O. Smith AH - 290 User manual

Innovation has a name.
AH
AHD
AHDS
Air to water heat pump
AH - 290 / AHD 290 / AHDS 290
Air to water heatpump • Storage capacity 285 liter • Very high
COP of 3,2 / 3,5 • Suitable for air temperatures between 0°C-35 °C
(depending on the model) • Plug and play installation • Easy and
user friendly control • Water temperature with the heat pump up
to 55°C • Additional electric element of 1,5 kW standard • Water
temperature with additional electric element up to 65 °C • Very silent
operation • AH 290 basic version with air intake and air outlet
indoors • AHD 290 with air intake and air outlet from outside
the building and defrost function • AHDS 290 with additional
integrated solar heat exchanger for thermal solar applications

AH(D)(DS)
Technical specifications
Functioning parameters
Minimum air temperature °C 8 0 -
Maximum air temperature °C 35 35 -
Air flow per hour m3280 280 -
Max hot water temperature heatpump °C 55 55 -
Max hot water temperature heatpump + electric element °C 65 65 -
Electrical data
Main electric connection 230(-15%/+10%)/50(+/- 1Hz)
Motor AC AC -
Power consumption W 560 560 -
Electric connection A 13 13 -
COP - 3,2 3,5 -
Power consumption electric element kW 1,5 1,5 -
Fan speed r.p.m. 2500 2500 -
General/Cooling info
Heat capacity kW 1,96 1,96 -
Refrigerant R 134 a R 134 a -
Refrigerant filling Kg 0,9 0,9 -
Maximum working pressure tank bar 8 8 -
Sound level (1 meter in front of the unit) dB 56 56 -
Anodes - 1 1 -
Draw-off capacity
Storage capacity l 285 285 -
Maximum temperature setting heatpump °C 55 55 -
Maximum temperature setting heatpump + electric element °C 65 65 -
Tcold = 10ºC / Tset = 55ºC (Heatpump function only)
30 min ∆T = 28 °C l 400 400 -
60 min ∆T = 28 °C l 430 430 -
90 min ∆T = 28 °C l 460 460 -
120 min ∆T = 28 °C l 490 490 -
Continuous ∆T = 28 °C l/h 60 60 -
Heating-up time ∆T= 28°C min 289 289 -
Tcold = 10ºC / Tset = 55ºC (Heatpump function only)
30 min ∆T = 45 °C l 249 249 -
60 min ∆T = 45 °C l 268 268 -
90 min ∆T = 45 °C l 286 286 -
120 min ∆T = 45 °C l 305 305 -
Continuous ∆T = 45 °C l/h 37 37 -
Heating-up time ∆T= 45°C min 465 465 -
Tcold = 10ºC / Tset = 65ºC (Heatpump + electric element)
30 min ∆T = 55 °C l 256 256 -
60 min ∆T = 55 °C l 283 283 -
90 min ∆ = 55°C l 310 310 -
120 min ∆T = 55 °C l 337 337 -
Continuous ∆T = 55°C l/h 54 54 -
Heating-up time ∆T= 55°C min 398 398 -
Shipping data
Empty weight kg 105 105 -
Weight including packaging kg 115 115 -
Maximum weight kg 390 390 -
Width packaging mm 765 765 -
Height packaging mm 1945 1945 -
Depth packaging mm 765 765 -
AH 290 AHD 290 AHDS 290

AH(D)(DS)
Installation diagrams
A Cold water
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
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.
Vented
Unvented
Vented (AHDS)

Data subject to change INT/0808/AH/02 Terms and conditions apply, please refer to our website.
AH(D)(DS)
Electrical diagrams CONNECTIONS SOLAR CONTROLLERCOMPONENTS
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
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 -
A Total height 1815 1840
B Unit height 1790 1790
D Diameter unit 660 660
G1Diameter air-intake - 160
G2Diameter air outlet - 160
H Height-air intake / air outlet 1815 1840
Hx1x-position air intake - 190
Hx2x-position air outlet - 480
Hy1y-position air intake - 200
Hy2y-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.
AH 290 AHD 290
AH(D)(DS)
Dimensions
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