B

1. User guide

The AHD 290 comes with a factory setup, which enables an immediate start of the unit. The factory setup is basic and must be adjusted to the operational requirements and demands of the individual home, in order to obtain the optimum operating benefit from the unit.

1.1Use

User menu

The value of a menu item is shown when pressing the key/key combination below. The value may be changed with the arrows when the key/key combination is held down simultaneously. The control will return to standard indication if no buttons have been pressed for app. 15 seconds.

P1: Heat Pump ON/OFF

On this button it is possible to change the function between: standby and automatic operation after setpoint P3. (step 0, step 1) Step 0: The heat pump is now off and only the control is active. Step 1: The heat pump is in operation mode and drives after setpoint thermostat P3.

P2: Operation for the electrical cartridge

The heat pump comes with an extra electrical cartridge for heating of the sanitary hot water. On this button it is possible to turn on the elec- trical cartridge if required. By adjusting the setpoint to 1 the electrical cartridge will turn on after setpoint P5 (operating

thermostat for the electrical cartridge). The electrical cartridge is not on if this setpoint it set to 0.

Note! When the ambient temperature is under 8°C or over 35°C the electrical cartridge will turn on even if P2 = 0.

P3: Operating thermostat for heat pump

The required sanitary water temperature may be set between 0 - 55°C, which is heated up by the heat pump.

Factory setting: 52°C

Max. water temperature: 55°C

P4: Stop defrosting

The level and operating thermostat buttons are pressed simultaneous-

+ ly

As a standard setting, the defrosting period ends when the tempera- ture has reached 10°C. During extraordinary operating conditions, it may be necessary to change this temperature. The temperature may be adjusted between 0-25°C.

Factory setting: 10°C

54

Page 53 Page 55
Page 54
Image 54
A.O. Smith 290 service manual User menu
Page 53 Page 55

290 specifications

The A.O. Smith 290 is a prominent water heater designed to elevate the standards of residential and commercial hot water solutions. This product exemplifies A.O. Smith's commitment to innovation, efficiency, and durability in the water heating industry.

One of the key features of the A.O. Smith 290 is its impressive energy efficiency. Equipped with advanced insulation technology, the unit minimizes heat loss, thus reducing energy consumption and lowering utility bills. This energy-efficient design makes it an environmentally friendly choice for users looking to cut down on their carbon footprint while enjoying reliable hot water.

The A.O. Smith 290 operates using either natural gas or propane, offering versatility depending on the user's preference or availability of resources. Its robust heating system allows for quick recovery rates, ensuring that households or businesses have an ample supply of hot water, even during peak usage times. This capability is particularly beneficial for larger families or establishments requiring significant amounts of heated water for various applications.

Durability is another distinguishing characteristic of the A.O. Smith 290. Built with high-quality materials, this water heater is subjected to extensive testing to ensure it can withstand the rigors of daily use. The unit features a corrosion-resistant tank that prolongs its lifespan and reduces the likelihood of leaks, providing peace of mind to users who demand reliability from their appliances.

Furthermore, the A.O. Smith 290 integrates cutting-edge technology for enhanced usability. It comes equipped with a user-friendly digital thermostat that allows for precise temperature control, enabling users to set their desired water temperature while ensuring safety. In addition, safety features such as a pressure relief valve and thermal shutdown provide added protection for both users and the system itself.

The compact design of the A.O. Smith 290 allows for easy installation in various spaces, making it a versatile option for different settings. Whether installed in a crawl space, utility room, or closet, it efficiently delivers consistent hot water without taking up excessive space.

In conclusion, the A.O. Smith 290 stands out in the market for its energy efficiency, versatility, durability, and advanced technology. It represents a smart investment for anyone in need of reliable hot water, combining performance and efficiency while ensuring user safety and convenience. With its user-centric features, it is suited to meet the demands of modern living, making it a preferred choice among homeowners and businesses alike.
Top Page Image Contents