37 1. User Guide - AO Smith AH-290 Manuel D'installation, Mode D'emploi, Manual D'entretien

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1. User guide
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The AH 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.
1.1 Use
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
electrical 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