Network interface
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
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3
3.2.2 Heating zones
This section describes only heating zone 1. For heating zones 2 to 5, the details apply accordingly.
Format:
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.
Setting: 36 °F to 84 °F (2 °C to 29 °C) in 1-degree intervals
6
Operating mode (Day/Night/Auto)
SNVT_hvac_mode (108) nviHK1TgNtAt
1
Tab. 13 Value for changing the operating mode of a heating zone
Value
Designation
Description
0
HVAC_AUTO
The heating zone is controlled according to the set heating program
(automatic mode).
1
HVAC_heat
The heating zone is controlled in day mode (manual day mode).
6
HVAC_off
The heating zone is controlled in setback mode (manual night mode –
see note about setback).
Tab. 14
7
Room set point night
temperature
SNVT_temp_p(105)
nviHK1RaumSNt_Tp
2
Tab. 15 Value for changing the set point temperature for the setback heating mode (night mode)
