15
Ground source heat pumps since 1983
3.1.3. Measurements
The Lämpöässä 203 regulator can take 14 concurrent readings (11 NTC readings and 2 digital inputs). The display
only shows the readings related to the regulator. There are 2 free readings.
Operating instructions:
Press ESC until the display no longer changes. You are in the ‘Menu’ screen.
Pressing the + key in this screen, the regulator shows you all the readings one by one and
then returns to the standard display screen. The readings can also be browsed in the
‘Measurements’ screen. Press OK. Use the browser button to move the cursor to ‘Measu-
rements’. Press OK.
Browsing the readings:
Use the browser button or the + key to browse through various readings on the display.
The ‘Measurement’ screen shows all the readings for all the regulating circuits. Press ESC
to exit the ‘Measurements’ screen.
Each sensor has its own typical reading range. When the reading value is outside of this
range, the display shows a + or - sign to show whether the reading value is above or below
the range.
If the sensor is faulty, the regulator sounds an alarm and the reading value shows ‘err’.
Terminal
block
Reading
Information on the reading
Reading range
1
Outdoor temperature
Outdoor temperature
-50–+50°C
2
L1 Output water
The temperature of output water in regulating circuit 1
0–130°C
3
L1 Room
Room temperature in regulating circuit 1 (room compensation)
-10–+80°C
5
L2 Output water
The temperature of output water in regulating circuit 2
0–130°C
6
Measurement 6
Free temperature reading that can be renamed
-10–+80°C
6
L2 Room
Room temperature in regulating circuit 2 (room compensation)
6
Wind
Wind speed (% of the sensor reading range)
6
Sun
Amount of light (% of the sensor reading range)
7
LV Output water
The temperature of output water for use
0–130°C
8
LV Circulating water
The temperature of return water from use
-10–+80°C
9
Water tank, upper part The temperature of the upper part of the water tank
0–+130°C
10
Water tank, lower part
The temperature of the lower part of the water tank
0–+130°C
11
Measurement 11
Free temperature reading that can be renamed
0–+130°C
11
Hot gas
The measured temperature of hot gas from the compressor. Please note!
Measurement 11 and the hot gas reading are alternative readings.
Compressor time
The total running time of the compressor in hours
Electric resistor time
The total running time of the electric resistor in hours
Motor L1
Setting for valve motor in regulating circuit L1
Motor L2
Setting for valve motor in regulating circuit L2
Motor LV
Setting for valve motor in regulating circuit for water for use
