siemens RDD810K Touch Screen Flush-mount Room Thermostats User Manual

siemens RDD810K Touch Screen Flush-mount Room Thermostats

Touch Screen Flush-mount Room Thermostats with KNX Communications

For heating applications

• KNX bus communications (S-Mode and LTE-Mode)
• Large display with backlight
• 2-position (ON/OFF) control with potential-free output for heating
• 2 multifunctional inputs for the keycard, window contact, external temperature sensor, presence detection, etc.
• Operating modes: Comfort, Economy, and Protection
• Minimum and maximum limitation of room temperature setpoint
• Control depending on the room or external temperature sensor
• Adjustable commissioning and control parameters
• Commissioning with Synco ACS, ETS5 or via local HMI
• Interoperation into Synco 700
• Integration into Design via a group (ETS5) or via individual addressing
• Integration into the third-party system via group addressing (ETS5)
• AC 230 V operating voltage
• RDD810KN: Mounting on the round box, with min 60 mm diameter or recessed square 86 mm box with 60.3 mm fixing centers and min 40 mm depth
• RDD810KN/NF: Mounting on recessed square 86 mm box with 60.3 mm fixing centers and min 40 mm depth, requires additional mounting frame

Use

Room temperature control in a heating system:

Typical applications:

• Apartments
• Commercial buildings
• Schools

For the control of the following pieces of equipment:

• Thermal valves or zone valves
• Gas or oil boilers
• Fans
• Pumps
• Floor Heating

The heating unit can be configured using one of the following tools via remote configuration:

• Local HMI
• Synco ACS
• ETS5

Functions

• Room temperature control via built-in temperature sensor or external room temperature sensor.
• Selection of operating mode via touch screen.
• Temporary Comfort mode extension.
• Display of current room temperature or setpoint in °C and/or °F.
• Minimum and maximum limitation of room temperature setpoint.
• Key lock function: unlock, total lock, and setpoint
• 2 multifunctional inputs, freely selectable for:
  • Window contact
  • Presence detector
  • External room temperature or return air temperature sensor
  • Fault input
  • Monitor input for temperature sensor or switch state
• Floor heating temperature limitation.
• Reload factory settings for commissioning and control parameters.
• Wizard function for easy commissioning via HMI
• KNX bus (terminals CE+ and CE-) for communication with Synco 700 or KNX compatible devices
• Display of time of day via KNX bus
• Display of outdoor temperature via KNX bus on INFO page
• Time scheduling and central control of setpoints via KNX bus
• With a Synco RMx7xx controller, the energy demand signal of the thermostat is used to optimize the energy supply.

Applications

The thermostat supports the heating applications:

• Hydronic floor heating controls
• Radiators
• Wall-hung boilers

Application Examples

• Room thermostat to control the valve of the radiator application
• Room thermostat to control the valve for the floor heating application
• Room thermostat with direct control of a gas-fired wall-hung boiler
• Room thermostat with direct control of a gas-fired floor-standing boiler
• Room thermostat with direct control of a heat pump (pre-controlled by manual mixing valve)
• Room thermostat with direct control of hydronic floor heating system

Type summary

1. ON/OFF output with potential free input from AC 24…230 V
2. The mounting frame (ARG800.1) is not included and must be ordered separately. See “Accessories”
3. The additional mounting frame is not required.

Ordering

• When ordering, indicate product number, SSN, and name.
  For example RDD810KN/NF (S55770-T336) room thermostat

• A mounting frame must be ordered for RDD810KN… installation (See “Accessories”)

• Order valve actuators separately.

Equipment combinations

• a) only available in AP, UAE, SA and IN
• b) for radiator valve
• c) for small valves 2.5 mm
• d) both QAH11.1 and QAP1030/UFH are for floor heating applications, such as temperature limitation controls. QAP1030/UFH has a special head and is 4 m long which is more suitable for such application

Note: Refer to data sheets of the actuators for the maximum number of parallel operations.

Accessories

Mechanical design

The thermostats consist of the following parts:

• Front panel with electronics, operating elements, and built-in room temperature sensor.
• Mounting base with power electronics.
• The mounting frame is an additional part to complete the installation for RDD810KN…

The rear of the mounting base contains the screw terminals. Slide the front panel in the mounting base and snap-on

Operation and settings.

Display 

Engineering notes

See the “Reference documentation”, page 12, for information on how to engineer the KNX bus (topology, bus repeaters, etc.) and how to select and dimension connecting cables for supply voltage and field devices.

Mounting and installation

Mount the room thermostat on a conduit box. Do not mount on a wall in niches or between bookshelves, behind curtains, above or near heat sources, or exposed to direct solar radiation. Mount about 1.5 m above the floor.

Mounting / Dismounting

• Do not apply excessive force on screws! The deformation of the mounting frame may lead to improper connections and operation of the unit.
• Mount the room thermostat on a clean, dry indoor place without direct airflow from a heating/cooling device, and not exposed to drips or water.
• Before removing the front cover, disconnect the power supply.

Wiring

See the User Manual for the installation instructions enclosed with the thermostat.

• Comply with local regulations to wire, protection and earth the thermostat.

• The device has no internal fuse for supply lines to fan and actuators. To avoid risk of fire and injury due to short-circuits, the AC 230 V mains supply line must have a circuit breaker with a rated current of no more than 10 A.

• The wiring cross section used for power supply (L, N) and 230 V outputs
  (Qxx – N) must be adapted to the preceding overload protection elements (max 10 A) under all circumstances. Comply under all circumstances with local regulations.

• Properly size the cables to the thermostat and valve actuators for
  AC 230 V mains voltage.

• Cables of SELV inputs X1-M / X2-M: Use cables with min 230 V insulation, as the conduit box carries AC 230 V mains voltage.

• Inputs X1-M or X2-M of different units (e.g. window contact) may be connected in parallel with an external switch. Consider overall maximum contact sensing current for switch rating.

• KNX communication cables (input CE+ / CE-): Use cables with min 230 V insulation, as the conduit box carries AC 230 V mains voltage.

• When a KNX bus power supply is connected on the line with communicating thermostats and Synco controllers, the internal KNX power supply of the Synco controllers must be switched off.

• No cables are provided with a metal shield.

• Disconnect from the supply before opening the cover.

Commissioning notes

Before power-up: No DIP switch setting is required for RDD810KN… thermostats.

Wizard function: After power-up, the wizard function guides users to configure the basic parameters for normal operation according to the table below.

• Touch < / >to advance / return to any parameter;
• Touch + / – to change value.

Reset

If more details are required about parameters, refer to basic documentation P3174.
To reload the factory setting for all parameters, set parameter P71 to ON. Restart the thermostat manually after reset, and then the thermostat is ready for commissioning by qualified HVAC staff.

Applications

RDD810KN… thermostats are for heating applications. Configure or change parameter settings during commissioning using one of the following tools:

• Local HMI
• Synco ACS
• ETS5

Connect tool

Connect the Synco ACS or ETS5 tools to the KNX bus cable at any point for commissioning:

ACS and ETS5 require an interface:

• Ethernet/LAN KNX interface (such as Siemens N148 / N146 / N152)
• OCI702 USB-KNX interface

Note:
An external KNX bus power supply is required if an RDD810KN… is connected directly to a tool (ACS or ETS5) via KNX interface.

Disposal

The device is considered electrical and electronic equipment for disposal in terms of the applicable European Directive and may not be disposed of as domestic garbage.

• Dispose of the device through channels provided for this purpose.
• Comply with all local and currently applicable laws and regulations.

Technical data

Connection terminals

Dimensions (mm)

RDD810KN for round conduit boxes

ARG800.1 single mounting frame for RDD810KN/NF

References

• Smart Information Delivery
• Building technology - Siemens Global
• KNX - MyKNX

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