SDC / DHC

Hydraulic Components

 

 

In case of simultaneous access to a heating circuit, the following rules apply:

•If multiple variable inputs are configured to the same heating circuit, the priority is as follows: variable input 1, variable input 2, variable input 3.

•If a variable input is assigned to ALL, it has a higher priority than a heating circuit assignment

•If multiple variable inputs are configured to ALL, the priority is again as follows: variable input 1, variable input 2, variable input 3.

ATTENTION

Short-circuit or terminating resistor may be connected to

GND (ground) only.

7.3.10.5External information

Function A temperature value sensed by a standard sensor is displayed as an information value in the information display. This function is controller-independent and is for information only

7.3.10.6Demand contact

NOTE This function is active for a demand contact if "demand contact" was selected for a variable contact and a heating circuit function was assigned to the associated output. The heating circuit functions are: mixed heating circuit, direct heating circuit, constant controller and fixed-value controller.

Function If a variable input (see note) was defined as a demand contact, the corresponding parameter for assigning the contact to the respective heating circuit (i.e. the heating circuit to be addressed by the demand contact) is displayed in the "System" menu.

The setting range includes all control circuits within a controller (DC, MC1, MC2, HW or ALL) so that the demand contact can be assigned either to each individual heating and hot-water circuit or, if required, to all circuits.

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Honeywell EN2H-0221GE51 R0808 service manual Demand contact
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EN2H-0221GE51 R0808 specifications

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