• Space Temp Sensor

Specify whether or not the controller is to be used with a space temperature sensor connected to its input. A space temperature sensor is typically 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.

• LED/LCD Display

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 show the 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 indicates Override Bypass, 1 Flash per Second indicates Override Unoccupied, 2 Flashes per Second indicates Override Standby or Occupied. 4 Flashes indicates the Controller answers of the Network Management Command Wink.

LED Occupancy

The LED shows the effective Occupancy Mode. On indicates effective Occupied or Bypass, 1 Flash per Second indicates effective Standby, Off indicates effective Unoccupied. 4 Flashes indicates 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 indicates effective Occupied or Bypass, Half Sun indicates effective Standby, Moon indicates effective Unoccupied. No Symbol and OFF in 7-Segment indicates 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 indicates Override Occupied or Bypass, blinking Half Sun indicates Override Standby, Blinking Moon indicates override unoccupied. The Controller answers with the Network Management Command Wink with blinking Sun and Moon.

• Override Button

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

None

The wall module button is not used for 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 Only

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

Fan Speed Switch

Define the type of switch used on the Wall module. Note that this setting also controls the maximum speed setting of the fan. For example, if a three-speed fan is used, but the fan speed switch is set to two-speed, the fan only operates with two speeds.

Normal

Settings based Switch Function

    Setting                      Fanspeed switch function

• No Fan Switch        The fanspeed switch is ignored
• Three Position         Off/Auto/On
• Four Position            Off/Auto/Low/High
• Five Position             Off/Auto/Low/Medium/High

• Setpoint Knob

The setpoint knob is available in different types of scales, 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 (example, 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.

No Knob

The setpoint knob is ignored. Note that this must be chosen if there is no setpoint knob connected to the controller. Selecting "no" prevents 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)

When the setpoint knob as been chosen as 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)

When the setpoint knob has been chosen as absolute, 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.

Digital Input 1

Window Closed

Indicates if a window is opened. An open window disables the controller operation. If the contact is closed, the window is closed.

Window Open

Indicates if a window is opened. An open window disables the controller operation. If the contact is closed, the window is open.

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.

UnOccupied Sensor

Indicates if the room is unoccupied. While unoccupied, the controller switches from the occupied operating setpoints to the standby operating setpoints. If the contact is closed, the space is unoccupied.

Air Flow

For monitoring correct fan operation using an air flow switch. When the fan is commanded on, the controller monitors this input for the fan run-up time. If the fan does not run within 30 seconds, the input indicates that the fan has failed. Similarly, the input indicates if the fan fails during normal operation. If the contact is closed, the fan runs.

No Air Flow

For monitoring correct fan operation using an air flow switch. When the fan is commanded on, the controller monitors this input for the fan run-up time. If the fan does not run within 30 seconds, the input indicates that the fan has failed. Similarly, the input indicates if the fan fails during normal operation. If the contact is closed, the fan is not running.

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.

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.

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.

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.

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.