Basic Documentation
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoint
- 4.4 Application overview
- 4.5 Additional functions
- 4.6 Control sequences
- 4.7 Control outputs
- 4.8 Fan control
- 4.9 Multifunctional input, digital input
- 4.10 Auto Timer
- 4.11 Handling system faults
- 4.12 Infrared remote control
- 4.13 Control parameters
- 5 Connection
- 6 Technical data
- 7 Dimensions
- Index
Notes
Commissioning
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3.2 Commissioning
Set the thermostat application via the DIP switches before snapping the front panel
onto the mounting base.
After power is applied, the thermostat resets all LCD segments light up indicating
that resetting was correct. After reset, which takes about 3 seconds, the thermostat
is ready for commissioning by qualified HVAC staff.
The control parameters of the thermostat can be set to ensure optimum
performance of the entire system (see basic documentation A6V12166490).
Note
After power failure, the thermostat restarts in the same mode as before, Comfort or
Protection (depends on P27).
The control sequence may need to be set via parameter P01 depending on the
application. The factory setting for the 2-pipe application is “Cooling only”; and
“Heating and cooling” for the 4-pipe application.
Compressor-based application
When the thermostat is used with a compressor, adjust the minimum output On-
time (P48) and Off-time (P49) for Y1/Y2 to avoid damaging the compressor or
shortening its life due to frequent switching.
Recalibrate the temperature sensor if the room temperature displayed on the
thermostat does not match the room temperature measured (after minimum 1 hour
of operation). To do this, change P05.
We recommend reviewing the setpoints and setpoint ranges (P08…P12) and
changing them as needed to achieve maximum comfort and save energy.
Control sequence
Calibrate sensor
Setpoint and range
limitation