Table of Contents
Advertisement
Installation Instruction
Post-heating
If the reason for ending a heating period is a decrease of moisture to below the chosen level, the post-
heating period will start. Post-heating ensures that no ice and snow is left on the ground.
If system priority is low, heating might be paused at any time!
The ground system uses heated sensors which under normal circumstances will hold a temperature
of 35°F (1.5°C). In connection with measuring the area temperature heating of the sensor is turned off for
90 minutes at a time. This is done in order to obtain a correct measurement of area temperature which is
not influenced by sensor temperature. If a system only has one sensor this sensor is constantly heated for
90 minutes and then turned off for 90 minutes. This entails that measurement of temperature can be up
to 3 hours delayed. With more than one sensor this performance is significantly improved.
Security and energy consumption
High security – higher energy consumption
If a high degree of security against ice and snow is wanted, make the following adjustments of the
operation parameters:
•
Increase the standby temperature
•
Increase the melting temperature
•
Decrease the moisture level (close to setting 5)
•
Prolong the post-heat period
This will give a high degree of security in even dry areas.
Low security – lower energy consumption
Conversely, low energy consumption and a moderate level of security against ice and snow could be
prioritized. In this case make the following adjustments of the operation parameters:
•
Decrease the standby temperature
•
Decrease the melting temperature
•
Increase the moisture level
•
Shorten the post-heat period
This will give relatively low energy consumption, but the area may remain wet and icy in short periods.
The factory settings are average values providing a relatively high degree of security and moder-
ate energy consumption.
34 | © Danfoss | 2018.10
GX-850M ver. IV
VUAPA422
Advertisement
Table of Contents
