Differential Temperature
Controller RWD32S
Differential temperature controller for solar storage systems.
Panel mounting design. Two 2-position control outputs AC 24…230 V.
Use
• Solar energy plants with one or two storage tanks
• Swimming pool heating systems with solar panels
• Residential buildings of all types
• Non-residential buildings of all types
• Standalone electronic temperature controller
• Operating voltage AC 230 V
• Three inputs for LG-Ni 1000, Pt 1000 temperature sensors. Unit can be set as °C or °F
• One digital input for ON/OFF mode change-over
• Two 2-position outputs
• Entering or changing of all data via operating buttons on the controller, without additional
tools
• PC connection for uploading / downloading applications and parameters, via the
software tool (option)
Plant types
Building types
Features
2/12
Siemens Differential Temperature Controller RWD32S CE2N3344en
Building Technologies 07.11.2008
Functions
• Control of the adjusted temperature differential through 2-position outputs for one or
two devices
• Pre-configured application types selectable
• Changeover to a secondary heat source upon demand (depending on application)
• Energy savings counter
• Minimum charging temperature
• Absolute temperature setpoint
• Maximum tank temperature limitation
• Frost protection
• Gradient function
• Adjustable time delay for ON/OFF outputs