Page 1
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
Page 2
AH(D)(DS)
Technical specifications
AH 290
AHD 290
Functioning parameters
Minimum air temperature °C 8 0 Maximum air temperature °C 35 35 -
Air flow per hour m
Max hot water temperature heatpump °C 55 55 Max hot water temperature heatpump + electric element °C 65 65 -
3
280 280 -
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 -
T
= 10ºC / T
cold
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 -
T
= 10ºC / T
cold
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 -
T
= 10ºC / T
cold
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 -
= 55ºC (Heatpump function only)
set
= 55ºC (Heatpump function only)
set
= 65ºC (Heatpump + electric element)
set
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 -
AHDS 290
Page 3
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 fi ne-tuned by our
Engineering Department.
For more information,
please contact our Technical
Support Group.
Vented
Unvented
Vented (AHDS)
Page 4
AH(D)(DS)
Electrical diagrams
AH(D)(DS)
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 CONTROLLERCOMPONENTS
1 - 2 - 3 N Magnet valve
4 L (short or long circuit)
5 L
6 N
7 L
8 N
9 L
10 N Power supply
11
12 L
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 38 -
Electric element
Compressor
1
Fan
High pressure switch
Dimensions
AH 290
AHD 290
A Total height 1815 1840
B Unit height 1790 1790
D Diameter unit 660 660
1 Diameter air-intake - 160
G
G2 Diameter air outlet - 160
H Height-air intake / air outlet 1815 1840
Hx
1 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.
www.aosmithinternational.com
Data subject to change INT/0808/AH/02
Terms and conditions apply, please refer to our website.
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