Control Sequences; Applications And Sequences; Sequences Overview (Setting Via Parameter P01) - Siemens RDG400 Basic Documentation

Parameter
Sequence
Mode
Available for:
Single-duct
Single-duct &
electrical heater
Single-duct &
radiator
Single-duct with
heat/cool coil
Notes:
18 / 42
Siemens
Building Technologies
4.7

Control sequences

4.7.1

Applications and sequences

Application VAV
Single-duct
Single-duct & electrical heater
Single-duct & radiator
Single-duct with heat/cool coil
4.7.2

Sequences overview (setting via parameter P01)

The sequence can be set via parameter P01, if available.
The thermostats can be used in systems featuring:
• Heating only (P01 = 0)
• Cooling only (P01 = 1)
• Manual heating/cooling changeover (P01 = 2)
• Automatic heating/cooling changeover (P01 = 3)
• Heating and cooling mode (e.g. 4-pipe system) (P01 = 4)
The available modes depend on the application
(selected via DIP switches, see section 4.5).
P01 = 0
Heating mode
3)
3)
1) Changeover air
2) Changeover water; heating / cooling coil
3) The thermostat operates in heating AND cooling mode. P01 is not available
RDG400 Basic Documentation
Functions
Sequences
h ( \ ), c ( / )
el.h + c ( \ / )
rad + c ( r\ / ),
h + c ( \ / )
P01 = 1
T °C
T °C
Cooling mode
3)
3)
P01 = 2 P01 = 3
T °C
Manually select
Automatic
heating or
heating/cooling
cooling mode
changeover via
external water
temperature
sensor or
remote switch
1)
3)
3)
2)
T
T °C
1)
3)
3)
2)
CE1P3182en
19 Jun 2009