Heating Zones - Buderus Logamatic LON-Gateway Technical Information

Network interface
3

3.2.2 Heating zones

This section describes only heating zone 1. For heating zones 2 to 5, the details apply accordingly.
6 Operating mode (Day/Night/Auto)
Tab. 13 Value for changing the operating mode of a heating zone
Format:
Value Designation
0 HVAC_AUTO
1 HVAC_heat
6 HVAC_off
Tab. 14
Changing the operating mode
With the HVAC_heat / HVAC_off setting, the operating mode for the consumer is changed
externally via the LON data bus.
Type of setback:
The type of setback set in the control panel has a direct influence on the behavior of the consumer
in setback mode or night mode. The following functions are available for selection:
• Switch off: the heating mode with activation of the pump is turned off entirely with this operating
mode, however the frost protection is active.
• Reduced: the controls are set to a lower room temperature set point (night temperature) and they
constantly activate the heating pump. The controls work with a parallel heating curve moved
downwards depending on the outdoor temperature.
• Outside stop: this operating mode combines the setback mode and the reduced heating mode.
Below a set outdoor temperature, the boiler operates in reduced mode and above that
temperature, in off mode.
7 Room set point night
temperature
Tab. 15 Value for changing the set point temperature for the setback heating mode (night mode)
Setting: 36 °F to 84 °F (2 °C to 29 °C) in 1-degree intervals
16
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
SNVT_hvac_mode (108) nviHK1TgNtAt
Description
The heating zone is controlled according to the set heating program
(automatic mode).
The heating zone is controlled in day mode (manual day mode).
The heating zone is controlled in setback mode (manual night mode –
see note about setback).
SNVT_temp_p(105) nviHK1RaumSNt_Tp
1
2