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Installation Instruction
GX-850M ver. IV
Ground system
Melting temperature
Changing the melting temperature will affect when the system is activated in case of moisture and
low temperatures.
The factory setting is 39 °F (4 °C).
This means that the heating system will be activated if the temperature falls below 4°C and moisture
is detected.
Standby temperature (maintained ground temperature)
The higher the standby temperature the faster the system will be able to melt ice and snow.
On the other hand the higher the standby temperature the higher the running costs. So, determining
the standby temperature is a trade-off between fast melting or low running costs.
The factory setting is 27 °F (-3 °C).
Moisture level
The "moisture level" decides when the system detects moisture.
The factory setting is 50 (on a scale from 5 to 95).
The lower the setting, the more sensitive the system is to moisture.
Post-heat
Once the sensor has detected that the roof/gutter is dry and free of ice and snow the system will keep
heating for another hour (default). If you wish to increase/decrease this time see capital A: Installer menu.
The factory setting is 1 hour (on a scale from 0 to 9 hours).
Priority
When using the GX-850M ver. IV as a dual or combi system, it is possible to prioritize the systems.
When the priority of 2 systems is equal, both systems can heat at the same time. If the priority of the 2
systems differs, and both systems want to heat, only the system with the highest priority is allowed to
heat.
The factory setting is 1 (highest priority) for all systems.
Clogged drain
It is possible to enable and disable the "Clogged drain warning".
The factory setting is "Warning On".
System and sensor name
It is possible to change the names of the system and connected sensors.
VUAPA422
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