Siemens RDG20 KN Series Basic Documentation page 69

CO indication (P009)
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CO in ppm
2
CO level
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A6V11545892_en--_c
Set P450 (Control strategy) = 0 and P009 (Additional display information) to the
requested IAQ information on the display.
When P009 is set as the following, CO
(concentration in ppm) or as text (GOOD, POOR, BAD) value, together with the
IAQ symbol :
●
P009 = 6: Indication CO
●
P009 = 7: Indication indoor air quality level as text, e.g. GOOD
●
P009 = 8: Indication humidity (%) and CO
●
P009 = 9: Indication humidity (%) and IAQ level as text, e.g. GOOD
When P009 is set as 8 or 9, the alternate display interval of humidity and IAQ value
is 10 s.
Note: After power is on, CO
Selection P009 = 6 or 8: Indication CO
The CO concentration in ppm is shown on the second line with the IAQ symbol
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Maximum display: 5000 ppm
Selection P009 = 7 or 9: Indication indoor air quality level as text
The indoor air quality level is shown on the second line as follows.
Recommended thresholds for occupant wellbeing
•
IAQ monitoring (P450 = 0 or 1)
CO concentration < 800 ppm
2
•
IAQ control (P450 = 2 or 3)
CO concentration < IAQ setpoint (P023)
2
Ventilation or open windows helps diluting the air and increasing
fresh air levels for occupant wellbeing.
•
IAQ monitoring (P450 = 0 or 1)
CO concentration is between 800 and 1200 ppm.
2
•
IAQ control (P450 = 2 or 3)
CO concentration is between "IAQ setpoint (P023)" and "IAQ setpoint (P023)
2
+ P-band Xp (P454, P456)".
Higher concentration may lead decreased performance.
It is recommended to bring fresh air in the room.
•
IAQ monitoring (P450 = 0 or 1)
CO concentration > 1200 ppm
2
•
IAQ control (P450 = 2 or 3)
CO concentration > "IAQ setpoint (P023) + P-band Xp (P454, P456)"
2
The "CO display text" and MENU, e.g. scheduler, can be shown in different
2
languages by selecting P031 (Language).
The indication has a maximal length of 4 digits.
information is displayed as numeric
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concentration in ppm
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concentration (ppm)
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measured value is not stable until 5 minutes later.
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concentration in ppm
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Functions
4
Additional functions
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