42
FOR THE INST
ALLER
Minimum and maximum working
temperatures
Maximum working temperatures
The heat pump can work with a maximum return temperature of approxi-
mately 48ºC. If the temperature rises above this value the heat pump will
stop for reasons of safety.
The maximum outgoing temperature from the heat pump is around 55ºC.
However, higher temperatures can be obtained when the additional heat
source is used.
Minimum working temperatures
The heat pump stops when the outdoor temperature falls below approxi-
mately -10ºC or when the return temperature falls below +5ºC. The heat
pump restarts automatically when the outdoor temperature rises above
approximately -9ºC and the return temperature is above +5ºC. The status
lamp on the control panel fl ashes rapidly when the temperature falls below
-10ºC.
Fit the particle fi lter
The task of the particle fi lter is to fi lter out dirt before it can enter the heat
pump. Consequently, the supplied particle fi lter should
always
be fi tted on
the incoming pipe on the hot side. It should be fi tted as close to the heat
pump as possible and be horizontal.
The heat pump’s two methods of control
The control unit uses two different methods to control the heat pump.
These two methods are:
Control with an outdoor sensor
and
Control with an
outdoor sensor supplemented with a room sensor.
More information about the control methods can be found in the User
section under
Control unit Rego 603 / The control unit’s two methods to
control the heat pump
.
The heat pump’s two operating modes
When a heat pump is installed it must be setup for a specifi c operating
mode. An operating mode relates to the heat pump’s working situation
which is dependent on the prevailing conditions, for example, whether an
electric or oil-fi red boiler is to be connected.
The Optima heat pump provides for two different operating modes:
- Operating mode A: Heat pump with external electric cassette.
- Operating mode B: The heat pump operates together with a mixed
additional heat, for example, an external electric/oil-
fi red boiler.
More information about each operating mode can be found in the User part
under
Control unit Rego 603/ The control unit’s two operating modes.
The heat pump in general
