A.O. Smith AHDS 290 user manual

Summary of the content on the page No. 1

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

Summary of the content on the page No. 2

AH(D)(DS) Technical specifications Functioning parameters Minimum air temperature °C 8 0 - Maximum air temperature °C 35 35 - 3 Air flow per hour m 280 280 - 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

Summary of the content on the page No. 3

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 fi ne-tuned by our Engineering Department.

Summary of the content on the page No. 4

AH(D)(DS) Electrical diagrams CoMPonentS ConneCtionS SolAr Controller A Controller 1 - - B Fan 2 - - C Compressor 3 N Magnet valve D Electric element 4 L (short or long circuit) E Magnet valve (short or long circuit) 5 L Electric element F Display 6 N (integrated in the control) 7 L Compressor G Temperature sensor (T5 - solar coil) 8 N H Temperature sensor (T6 - solar coil) 9 L1 J Temperature sensor 10 N Power supply (T7 top of the tank) 11 K Temperature sensor 12 L Fan