Horstmann HRT4-ZW Betriebsanweisung PDF herunterladen (Seite 6)

Electrical Connections

WARNING: ISOLATE THE MAINS SUPPLY BEFORE COMMENCING INSTALLATION

As the HRT4-ZW is a wireless product with no electrical connections all electrical wiring will be

made to the ASR-ZW receiver.

All necessary electrical connections should now be made. Flush wiring can enter from the rear

through the aperture in the backplate.

The mains supply terminals are intended to be connected to the supply by means of fixed wiring.

The receiver is mains powered and requires a 3 Amp fused spur.

The recommended cable size is 1.Omm

The receiver is double insulated and does not require an earth connection, an earth connection

block is provided on the backplate for terminating any cable earth conductors. Earth continuity must

be maintained and all bare earth conductors must be sleeved. Ensure that no conductors are left

protruding outside the central space enclosed by the backplate.

Two example circuit diagrams for typical boiler installations are shown opposite. These diagrams are

schematic and should be used for guidance only.

Please ensure that all installations comply with the current IEE regulations and the boiler

manufacturer’s installation instructions.

For reasons of space and clarity not every connection has been included and the diagrams have

been simplified, for instance some earth connections have been omitted.

N L 1 2 3 4

230V 50V COMM OFF ON

Internal

Electronics

ASR-ZW Receiver internal wiring diagram

The receiver has Voltage Free contacts. A link between

Live and terminal 2 is required for mains Voltage

applications.

1 2 3 4 5 6 7 8 9 10 11 12

Keine Kommentare

Horstmann HRT4-ZW Betriebsanweisung Seite 6