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WEBVISION™
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Wall
Module
(cont.)
Override Button
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:
Two seconds puts the controller in Bypass.
Five seconds puts the controller in Unoccupied.
BYPASS
The Bypass button, when pressed, has the following function:
Two seconds puts the controller in Bypass.
Setpoint Knob
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 (°C or °F) is the setting made in WebVision 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 TR21 or TR23
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 °C
installations and (DDF) for °F installations.
(SETPOINT KNOB = ABSOLUTE MIDDLE)
The setpoint limits are limits on the absolute range of the setpoint knob in (Deg.C) for °C installations and (Deg.F) for
°F installations.
Table 44. Wall Module and Hydronic Controller Inputs. (Continued)
Name Definition