System information

Hydraulic Components	SDC / DHC

ATTENTION

No global controller function for data bus system with several central devices.

Control modes and switching time settings are not effective when the demand contact is activated. The respective heating circuit only responds to requests from the demand contact.

The control modes manual, emission measurement with safety temperature limiter check and screed function are of higher priority.

An open demand contact is signaled by the string "disable" in the status display; a closed contact is identified by the string "demand".

Contact function A variable input that has been defined as a demand contact acts on the heating circuit in the following way:

•Variable input open: No demand

The heating circuit is switched of unconditionally (no frost protection, no standby function).

•Variable input short-circuited: Demand

The heating circuit is in control mode HEATING (continuous heating) and works according to its parameter settings.

ATTENTION

Customers must take appropriate frost protection measures for the respective control circuit.

This function can be activated up to three times (once for each available variable input).

220	EN2H-0221GE51 R0808

EN2H-0221GE51 R0808 specifications

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Honeywell EN2H-0221GE51 R0808 service manual System information

Models: EN2H-0221GE51 R0808

SDC / DHC

System information

EN2H-0221GE51 R0808

EN2H-0221GE51 R0808 specifications