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OPERATION & CONTROL UNIT
3.3.1.
Analogue outputs, status
Displays voltage used 0-10 V.
AO1 SA fan:
5.0 V
AO2 EA fan:
5.0 V
AO3 Heating:
2.6 V
AO4 Cooling:
0.0 V
3.4.1
Digital outputs, status
Displays current status of outputs.
ON = output 24 V.
OFF = output 0 V.
DO1 BP opening
: On
DO2 BP closing
: Off
DO3 PWM heat
: Off
DO4 Sum alarms : On
3.4.2
Digital outputs, status - cont'd.
DO5 CP heat
: Off
DO6 KAVK
: Off
DO7 ULS
: On
NOTE! Outputs DO4 - DO7 may be configured to either Sum alarms, CP heat, CP cool,
Normal flow, Not active, KAVK (Condensation boiler) or ULS (Outdoor air damper). This is
done in the menu Configuration.
3.5.1
Calibrate sensors
The temperature sensors' values may be offset. For example, the system's temperature may
be synchronized with the ordinary thermometer. State the difference on this screen and the
two will show the same value. To adjust the value, see Ch. A.
AI1: NaN °C K:
0.2
AI2: NaN °C K:
0.0
AI3: NaN °C K: - 0.1
AI4: NaN °C K:
0.0
3.5.2
Calibrate sensors - cont'd.
UAI1: NaN °C K:
0.3
UAI2: NaN °C K:
0.0
UAI3:
°C K:
UAI4:
°C K:
REC Indovent AB, Box 37, SE-431 21 Mölndal, Sweden
Line 1 displays current voltage to supply air fan.
Line 2 displays current voltage to exhaust air fan.
Line 3 displays current voltage to after-heater (water).
Line 4 displays current voltage to cooling coil.
Line 1 ON shows that the By-pass damper is opening
Line 2 ON shows that the By-pass damper is closing
Line 3 ON shows that electric heating is operating (PWM heating).
Line 4 ON shows that the output has been made active.
Line 1 ON shows that the output has been made active.
Line 2 ON shows that the output has been made active.
Line 3 ON shows that the output has been made active.
Line 1 Displays current offset for outdoor temperature.
Line 2 Displays current offset for supply air temperature.
Line 3 Displays current offset for exhaust air temperature.
Line 4 Displays current offset for extract air temperature
Line 1 Displays current offset for room temperature.
Line 2 Displays current offset for frost protection temperature.
Line 3 Not used!
Line 4 Not used!
Air Handling Unit RT 250/400S-EC-RS
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+46-31-675500
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www.rec-indovent.se
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