Siemens RDG400 - Manual (Page 5)

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Siemens RDG100, RDG100T, RDG110, RDG140, RDG160 Basic Documentation CE1P3182en
Building Technologies Summary 28 May 2009
2 Summary
2.1 Brief description
• Single-duct system
• Single-duct system with electrical heater
• Single-duct system and radiator / floor heating
• Single-duct system with heating / cooling coil
• Two multifunctional inputs and one digital input for keycard contact, external
sensor, etc.
• Operating modes: Comfort, Energy Saving and Protection
• Automatic or manual heating/cooling changeover
• Adjustable commissioning and control parameters
• Minimum and maximum setpoint limitation
• Backlit LCD
• AC 24 V operating voltage
• Modulating PI / P control
• Output DC 0 … 10 V
• Output signal inversion as an option
• Output on/off, PWM or 3-position control
• Adjustable minimum and maximum limitation of air flow output signal
• Maintain room temperature via built-in temperature sensor or external room
temperature / return air temperature sensor
• Automatic or manual changeover between heating and cooling mode
• Select applications via DIP switches
• Select operating mode via the operating mode button on the thermostat
• Display current room temperature or setpoint in °C and/or °F
• Minimum and maximum setpoint limitation
• Button lock (automatic and manual)
• One digital input, freely selectable for:
– Operating mode switchover contact (key card)
– Automatic heating/cooling changeover contact
– Electrical heater enable
– Fault input
• Two multifunctional inputs, freely selectable for:
– Operating mode switchover contact (key card)
– Automatic heating/cooling changeover sensor
– External room temperature or return air temperature
– Dewpoint sensor
– Electrical heater enable
– Fault input
• Floor heating temperature limit
• Reload factory settings for commissioning and control parameters
2.2 Types and features
Product no. Operating voltage Number of control outputs LCD backlight
ON/OFF PWM 3-pos DC 0 … 10 V
RDG400 AC 24 V 1 1) 1 1) 1 1) 1
1) Either ON/OFF, 3-position or PWM (triac outputs)
Applications
Features