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Siemens
RDG400 Basic Documentation
CE1P3182en
Building Technologies
2015-05-20
4.7 Control
sequences
4.7.1 Applications and sequences
Application VAV
Sequences
Single-duct
h ( \ ), c ( / )
Single-duct & electric heater
el.h + c (
7
\ / )
Single-duct & radiator
rad + c ( r\ / ),
Single-duct with heat/cool coil
h + c ( \ / )
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).
Parameter
P01 = 0
P01 = 1
P01 = 2
P01 = 3
Sequence
Mode
Available for:
ê
Heating mode Cooling mode
Manually select
heating or cooling
mode
Automatic
heating/cooling
changeover via
external water
temperature
sensor or remote
switch
Single-duct
ü
ü
ü
1)
ü
1)
Single-duct &
electric heater
3)
3)
3)
3)
Single-duct &
radiator
3)
3)
3)
3)
Single-duct with
heat/cool coil
ü
ü
ü
2)
ü
2)
1)
Changeover air
2)
Changeover water; heating/cooling coil
3)
The thermostat operates in heating AND cooling mode. P01 is not available
Notes:
