Danfoss ECL Comfort 300 User Manual page 17

7a
Definitions
Air duct temperature
Temperature measured in the air duct where the temperature is
to be controlled.
Balance temperature
This setpoint is the basis for the flow / air duct temperature. The
balance temperature can be adjusted by the room temperature,
the compensation temperature and the return temperature.
The balance temperature is only active if a room temperature
sensor is connected.
Comfort operation
Normal temperature in the system controlled by the schedule.
During heating the flow temperature in the system is higher
to maintain the desired room temperature. During cooling the
flow temperature in the system is lower to maintain the desired
room temperature.
Comfort temperature
Temperature maintained in the circuits during comfort periods.
Normally during daytime.
Compensation temperature
A measured temperature influencing the flow temperature
reference / balance temperature.
Controller mode indicator
Black arrow to the right of the symbols indicating the present
mode.
Desired room temperature
Temperature which is set as the desired room temperature.
The temperature can only be controlled by the ECL Comfort
controller if a room temperature sensor is installed.
If a sensor is not installed, the set desired room temperature
however still influences the flow temperature.
In both cases the room temperature in each room is typically
controlled by radiator thermostats / valves.
Desired temperature
Temperature based on a setting or a controller calculation.
Dew point temperature
Temperature at which the humidity in the air condensates.
Factory settings
Settings stored on the ECL Card to simplify the set up of your
controller the first time.
Flow temperature
Temperature measured in the flow at any time.
Flow temperature reference
Temperature calculated by the controller on basis of the
outdoor temperature and influences from the room and / or
return temperatures. This temperature is used as a reference for
the control.
Heating circuit
The circuit for heating the room / building.
Heat curve
A curve showing the relationship between actual outdoor
temperature and required flow temperature.
DHW circuit
The circuit for heating the domestic hot water (DHW).
Humidity, relative
This value (stated in %) refers to the indoor moisture content
compared to the max. moisture content. The relative humidity
is measured by the ECA 62 / 63 and is used for the calculation of
the dew point temperature.
Limitation temperature
Temperature that influences the desired flow / balance
temperature.
Pt 1000 sensor
All sensors used with the ECL Comfort controller are based
on the Pt 1000 type. The resistance is 1000 ohm at 0 °C and it
changes with 3.9 ohm / degree.
Optimization
The controller optimizes the start time of the scheduled
temperature periods. Based on the outdoor temperature, the
controller automatically calculates when to start in order to
reach the comfort temperature at the set time. The lower the
outdoor temperature, the earlier the start time.
Return temperature
The temperature measured in the return influences the desired
flow temperature.
Room temperature sensor
Temperature sensor placed in the room (reference room,
typically the living room) where the temperature is to be
controlled.
Room temperature
Temperature measured by the room temperature sensor, room
panel or remote control. The room temperature can only be
controlled directly if a sensor is installed. The room temperature
influences the desired flow temperature.
Schedule
Schedule for periods with comfort and setback temperatures.
The schedule can be made individually for each week day and
may consist of up to 3 comfort periods per day.
Setback temperature
Temperature maintained in the heating / DHW circuit during
setback temperature periods.
State / mode indicators
White arrow to the left of the symbols (sun / moon). The white
arrow indicates the present state, comfort (sun) or setback
(moon), when the controller is in scheduled operation mode.
The black arrow symbol indicates the mode of the controller.
Time line / bar
Line with numbers representing the hours. Below the time
line, time bars represent scheduled periods with comfort
temperature. The bar is divided into half hour sections.
Weather compensation
Flow temperature control based on the outdoor temperature.
The control is related to a user-defined heat curve.
The definitions apply to the Comfort 200 as well as ECL Comfort
300 series. Consequently, you might come across expressions
that are not mentioned in your guide.
7b