COPELAND 026-1739 Programmable Touchscreen Thermostat User Manual
3.5.5 Active Stage(s) Indicator
The thermostat will show the mode is active with the number of activated output stages (see Figure 3-25), as well as the target
temperature setpoint under the given active mode.
Figure 3-25 - Active Stage(s) Indicator
According to the number of output stages configured and available into the thermostat (1 to 2 stages for Cooling and Heating),
the display will show output activation status according to the following table:
Table 3-7 - Active Stage Output Activation Status
Stages Configuration
Output Activation
Output Display (on GUI)
0% OFF
50% (1-stage ON)
2-stage Configuration (Cooling, Heating)
100% (2-stages ON)
0% OFF
1-stage Configuration (Cooling, Heating)
100% (1-stage ON)
A) BMS schedule
3.5.6 Schedule Mode
If a Modbus communication to the thermostat occurs, then it
is assumed that the Building Management System (BMS)
controls the thermostat with its own schedule.
The thermostat can operate on either a schedule or
unscheduled operation.
Schedule Mode Inactive (Unscheduled Operation)
The Schedule Mode set to Inactive is the most basic mode of
the thermostat. The user can change the temperature
setpoints on the display, see Section 3.1, Graphical User
Interface (GUI). The setpoints will remain unchanged until
the next manual update on the display or by Modbus.
B) Back-up schedule
If the thermostat detects a Modbus communication loss (no
communication addressed to the thermostat during 10
minutes or more), the internal schedule takes over to control
the thermostat. When the internal schedule is running, the
icon “Follow schedule” will be visible on the display
(Figure 3-26). The text “Follow schedule” is not displayed in
case the BMS schedule is active.
Schedule Mode Active (Scheduled Operation)
The Schedule Mode set to Active describes the thermostat
behavior against a programmed schedule. To set the
Schedule Mode to Active, send a request from the BMS to
enable or disable the schedule. The scheduled operation
(Active) can only be activated by the Modbus network.
Scheduled operation can be done via the BMS schedule or
the back-up schedule.
Figure 3-26 - Follow Mode Activated
13
©2024 Copeland LP.
026-1739 R4 Programmable Touchscreen Thermostat
| General | Details |
|---|---|
| Name | COPELAND 026-1739 Programmable Touchscreen Thermostat User Manual |
| Make | Copeland |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.72 MB |
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