Table of Contents
Advertisement
ENERGY METERING
the heat pump and provide the control unit with information about the
current room temperature. The signal affects the flow temperature.
For example, it falls when the room controller indicates a higher
temperature than the one set. Room controllers are used when factors
other than the outdoor temperature influence the indoor temperature
of the house. For example, this can be when a stove or fan-assisted
radiator is used in the house, or if the house is sensitive to the wind or
exposed to direct sunlight.
It is only the room where the room controller is located
that can influence the temperature of the relevant
heating circuit.
8.3
TIME CONTROL FOR HEATING
• Program control; the control unit offers four fixed and two individual
programs for clock setting of day/time.
• Holiday; the control unit has a program for holiday mode, which
means that during the selected period the room temperature changes
to a lower or higher level. The program also allows switching off hot
water production.
• External control; the control unit can make settings for external
control, which means that the preselected function is performed
when the control unit senses an input signal.
8.4
OPERATING MODES
• With electrical additional heat; the additional electrical heater is
used to supplement both DHW and CH when required temperature is
not fulfilled.
• With mixed additional heat (option); the additional boiler option is
used to supplement both DHW and CH when required temperature is
not fulfilled.
The Multi module accessory is required for mixed
additional heat and hot water electric heater.
9
ENERGY METERING
Energy metering in the heat pump is an approximation based on the sum
of the nominal emitted output during the relevant metering period. The
calculation requires for example that the heat pump is correctly
installed, and that the flow and temperatures on the hot and cold sides
are adjusted as recommended. The value should therefore be regarded
as an estimate of the actual emitted output. The margin of error in the
calculation is normally put at 5-10%.
In addition, the energy output is affected by the outdoor temperature,
the settings for the thermostat and room controls and heat pump usage.
Ventilation, indoor temperature and hot water demand can play a
decisive role.
8
6 720 806 768 (2013/02)
Advertisement
Table of Contents
