Control Functions

SDC / DHC

 

 

6.8.4Outside temperature disable

Function The purpose of outside temperature disable is to prevent the heat generator from starting up above a defined outside temperature.

If several heat generators are controlled though one device (automatic stoker, 2-stage), all stages of the device will be disabled with outside temperature disable.

In the case of cascaded systems with multiple devices, the entry of an outside temperature disable is possible for each central device so that individual levels can be blocked by the outside temperature disable.

6.8.5Climate zone

Function The climate zone is the coldest outside temperature value to be expected.

For the heat demand coverage, this value is taken as the basis for the design of the heating system.

This parameter defines the corresponding slope value of the heating curve of the heating circuit with regard to the climate zone.

See also 5.2.3 "System Parameters" menu, Pg. 72

6.8.6Design temperature

Until now, configuration of the heating curve calculation occurred via the values

•Climate zone (TANorm)

•Slope (S)

•Heating system (m value)

Supplemental to the slope, the setting of the design temperature

TVLNorm is also possible directly at the controller.

Setting range DESIGN TEMP: Setting range HCmin to HCmax (°C)

There is a direct relation between the HEATING CURVE and

DESIGN TEMP parameters in the following connection:

TVLNorm = (20°C − TANorm ) * S + 20°C

This means that the value of the respective other parameter changes accordingly.

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EN2H-0221GE51 R0808

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Honeywell EN2H-0221GE51 R0808 service manual Outside temperature disable, Climate zone, Design temperature
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EN2H-0221GE51 R0808 specifications

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