18
Q Shut off valve
Q Safety valve outlet
Q Control valve with motor
T Temperature sensor
E Double-shelled water heater with electric element
E Oil-Þ red boiler/Electric boiler
E Heat pump
C Expansion tank
W Filter/Screen
G Pump
G Fan
W Filter valve
W Domestic hot water
W Inlet/outlet
Pipe (Arrow denotes direction of ß ow)
Crossing pipes
T-piece
Optima with electric/oil-fi red boiler and hot water heater
Connection principles
The principle is based on liquid condensation and additional heat from an electric/oil-fi red boiler using a mixing valve.
The control unit controls the heat pump using the outdoor sensor T2 and the return sensor T1 according to the set heat
curve. When the heat pump is unable to meet the heating requirements, the electric/oil-fi red boiler starts automati-
cally and together with the heat pump provides the required temperature. Hot water is prioritised and controlled by a
sensor, T3 in the heater. While the water is heating in the hot water heater, the heating system from the heat pump is
disconnected temporarily through a three-way valve. If the electric/oil-fi red boiler is in operation it provides the required
temperature to the heating system. When the hot water is heated the heat pump continues the heat production.
Hot water mode when the heat pump is not operating:
The heat pump stops automatically at outdoor temperatures below approximately -10ºC and cannot then produce hot
water. The electric element in the hot water heater (IVT 300/160) is then automatically activated by the control unit and
the hot water heater will thus maintain a high temperature. The temperature is adjustable using the thermostat on the
electric element.
Connected sensors:
T1 Flow sensor
T2 Outdoor sensor
T3 Hot water sensor (accessory)
T5 Room sensor (accessory)
T8 Sensor heat transfer fl uid out
T9 Sensor heat transfer fl uid in
Connecting to the heating system
Mixing valve
Three-way valve
Hot water
Cold water
Particle
fi lter
Heating
system
Outdoor sensor
Room sensor,
accessory
Note
If a hot water heater is not included,
connect the cold and hot water pipes to
the electric/oil-fi red boiler.
To Next Page
Loading...
