A.O. Smith 290 service manual 3.4Air intake and exhaust

Models: 290

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3.4Air intake and exhaust

3.4Air intake and exhaust

Make sure that there is sufficient free space around the heat pump.

Inlet air

The inlet air may not be polluted with aggressive components (ammonia, sulphur, chlorine, etc.). Parts in the system may be damaged.

Air connectors

Inlet and outlet ducts must be made of smooth pipes to minimize pressure losses. Consider the fan working pressure and the duct resistance during installation. (See technical data.)

It is advised to install the air ducts that are placed near the heating pump, levelled or with a light fall towards the extract air outlet to avoid leaking of condensed water, easy to cut of. This will avoid leaking of condensed water from the ducts. When air ducts are placed outside the building the back pressure valve (with a small resistance) should be placed to ensure no cold air is entering the room in the winter time and when the heating pump is standing still.

Manual background The heating pump may only be used with the tank filled up!

The unit must always be disconnected from the power before the front door is removed. When the unit is disconnected from the power please wait until the fan has stopped before opening the front doors!

Before starting up the unit please ensure that all cables and electric plugs are connected correctly and the cable and plug between the display in the door and the circuit board are connected!

It is advised to insulate all ducts to lower heat loss and to lower the noise level.

3.5Checking

After the installation, it is recommended that the checks be performed to ensure that the connections are sealed and that the drainage of the

condensation water is unobstructed.

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Page 51
Image 51
A.O. Smith 290 service manual 3.4Air intake and exhaust