Define whether or not the controller is to be used with a space temperature sensor connected to its input. Typically, a space temperature sensor is used, but in cases where the space temperature is supplied from another device via the network, the local space temperature sensor input is not used.

• YES

The local space temperature sensor input is used. Ensure that a space temperature sensor is actually connected, otherwise the controller measures incorrect values.

• NO

The local space temperature sensor is not used. This option must be selected when a sensor is not connected.

This configuration defines whether a Wall Module with LED or a Wall Module with LCD Display is connected.

For the LED there is shown either the Override Status or the Effective Occupancy Status. The LCD Display shows both the Effective and the Override Status and an additional Off Condition.

The Override Status results from the Scheduler, the Network Override, the Override Button and the Occupancy Sensor. The Off Condition results from the Fanspeed Switch, the Window Contact and the Medium from nviApplicMode.

• LED_OVERRIDE

The LED shows the Override from the Override Button or from the Network. On means Override Bypass, 1 Flash per Second means Override Unoccupied, 2 Flashes per Second means Override Standby or Occupied. 4 Flashes means the Controller answers of the Network Management Command Wink.

• LED_OCCUPANCY

The LED shows the effective Occupancy Mode. On means effective Occupied or Bypass, 1 Flash per Second means effective Standby, Off means effective Unoccupied. 4 Flashes means the Controller answers of the Network Management Command Wink.

• LCD_DISPLAY

This Mode is used only for a Wall Module with LCD Display. The Display has following Symbols to show the Occupancy Modes: Sun means effective Occupied or Bypass, Half Sun means effective Standby, Moon means effective Unoccupied. No Symbol and OFF in 7-Segment means the Controller is Off. In the Off Mode, a Snow Flag indicates whether Frost Protection is configured. Blinking Symbols are used to show the Override: Blinking Sun means Override Occupied or Bypass, blinking Half Sun means Override Standby, Blinking Moon means override unoccupied. The Controller answers with of the Network Management Command Wink with blinking Sun and Moon. 

Define how the override button on the connected wall module is to be used.

• NO_BUTTON

The wall module button is not used for the bypass function.

• BYPASS_UNOCCUPIED

The Bypass button, when pressed, has two different functions depending on the length of time the button is held down.

1. Two seconds puts the controller in Bypass.
2. Five seconds puts the controller in Unoccupied.

• BYPASS

The Bypass button, when pressed, has the following function:
Two seconds puts the controller in Bypass.

The setpoint knob is available in different types of scale, and with different setpoint meanings, based on the country of usage. The temperature engineering unit used ( Deg.C or Deg.F) is the setting made in the tool (ecxample, LonMaker) when creating the new project. This setting is used for the total project. Note that the setpoint knob only affects the Occupied and Standby Setpoints. The Unoccupied setpoint is not affected by the setpoint knob.

NOTE

Hydronic controller Version B has an on-board setpoint. It cannot be used with an external T7770 setpoint device.

• NO_KNOB

The setpoint knob is ignored. Note, that this must be chosen, if there is no setpoint knob connected to the controller, to prevent the controller from reacting to incorrect setpoint values.

• RELATIVE

The setpoint knob is a relative knob, showing only a setpoint shift as (+) and (-) changes to the configured setpoint.

• ABSOLUTE_MIDDLE

The setpoint knob is an absolute knob, showing the setpoint in absolute degrees. It is used as the space temperature setpoint midway between the heating and cooling zero energy band.

Setpoint Limits

These two fields specify the allowed range of adjustment available from the wall module setpoint knob. It is used by the building manager for energy management purposes, to balance allowed comfort conditions with energy usage.

(SETPOINT KNOB = RELATIVE)

The setpoint limits define the range of adjustment of the setpoint knob from the zero point, in (DDC) for Deg.C installations and (DDF) for Deg.F installations.

(SETPOINT KNOB = ABSOLUTE MIDDLE)
The setpoint limits are limits on the absolute range of the setpoint knob in (Deg.C) for Deg.C installations and (Deg.F) for Deg.F installations.

• DI_WINDOW_CLOSED
  Indicates if a window is opened. An open window disables the controller operation. If the contact is closed, the window is closed.
• DI_WINDOW_OPEN
  Indicates if a window is opened. An open window disables the controller operation. If the contact is closed, the window is open.
• DI_OCCUPIED_SENSOR
  Indicates if the room is occupied. While unoccupied, the controller switches from the occupied operating setpoints to the standby operating setpoints. If the contact is closed, the space is occupied.
• DI_UNOCCUPIED_SENSOR
  Indicates if the room is occupied. While unoccupied, the controller switches from the occupied operating setpoints to the standby operating setpoints. If the contact is closed, the space is unoccupied.
• DI_CHANGEOVER_COOL
  This selection is for local heat/cool changeover operation for two-pipe units using a switch or local thermostat switch. When the contact closes, this input indicates that the system can operate in cooling mode. When the contact opens, this input indicates that the system can operate in heating mode.
• DI_CHANGEOVER_HEAT
  This selection is for local heat/cool changeover operation for two-pipe units using a switch or local thermostat switch. When the contact closes, the input indicates that the system can operate in heating mode. When the contact opens, the input indicates that the system can operate in cooling mode.
• DI_MOVEMENT
  This selection is used for movement detector configuration where a closed contact indicates movement. Movement detector is the same as occupancy sensor, but with an additional Hold Time of 15 minutes. This adds a delay to the occupancy signal such that the space is considered occupied until 15 minutes has elapsed since the last movement is detected.
• DI_NO_MOVEMENT
  This selection is used for movement detector configuration where a closed contact indicates no movement. Movement detector is the same as occupancy sensor, but with an additional Hold Time of 15 minutes. This adds a delay to the occupancy signal such that the space is considered occupied until 15 minutes has elapsed since the last movement is detected.
• DI_NOT_USED
  This setting indicates that the digital input is not used. Use this setting if nothing is connected to the controller to ensure that spurious signals do not cause the controller to operate incorrectly. The status of this digital input is reported to the network for use as a free digital input if required. It has no effect on the control algorithm.