User Manual

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Recirculated air op (basic type A) 03.10.2011
Automatic changeover from recirculated air operation (Precomfort) to normal
operation (Comfort):
 When an IAQ controller is configured, the system changes over to normal
operation (Comfort) when the IAQ Precomfort setpoint is exceeded. It switches
back to recirculated air operation (Precomfort) after Comfortable air quality is
achieved
 For 2-speed operation of fans and configured IAQ controller, speed changeover
may occur according to indoor air quality(see section 16.4 "Changeover fan
s
peeds (basic type A)")
20.2.1 Setpoints for control in recirculated air operation
(Precomfort)
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Controller 1 > Room setpoints >
Operating line Factory setting
Precomfort cooling setpoint 28 °C
Precomfort heating setpoint 19 °C
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Controller 1 > Setpoints >
Operating line Factory setting
Precomfort setpoint high
28 °C, 28 K, 80%, 20 g/kg, 50 kJ/kg, 1000 W/m2,
15 m/s, 10 bar, 100 mbar, 500 Pa, 1500 ppm, 100,
1000
Precomfort setpoint low
19 °C, 19 K, 20%, 0 g/kg, 0 g/kg, 0 kJ/kg, 200
W/m2,
0 m/s, 0 bar, 0 mbar, 0 Pa, 0 ppm, 0
Main menu > Commissioning > Settings > .... or
Main menu > Settings > IAQ controller >
Operating line Range Factory setting
Setpoint indoor air quality ---, 500...2000, ppm 1000 ppm
Setpoint fan speed 2 500...2000 ppm 1200 ppm
Disable Precomfort IAQ setpoint by setting it to "---"
Notes
Setting values