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HRT4-B Thermostat – Internal Wiring Diagram
The HRT4-B is double insulated and does not require
an earth connection, an earth connection block is
provided on the wall plate 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 wall plate.
The HRT4-B has voltage free contacts.
Ÿ
The HRT4-B is battery powered, therefore no mains
Ÿ
connection is required to power it.
Please ensure that all
wiring complies with
t h e c u r r e n t I E E
regulations.
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