HAMWORTHY HEATING LTD
34
MILBORNE
500001130/J
Wiring connections
Connect the wires from the boiler Master controller
to terminal 1 & 2 of the programmable room
thermostat.
For high temperature heating circuit, terminal 9 at
the Master control provides the live and should be
wired to terminal 1 at the thermostat. Terminal 10 at
the Master control receives the switch live return
and should be wired to terminal 2 at the thermostat.
For low temperature heating circuit, terminal 11 at
the Master control provides the live and should be
wired to terminal 1 at the thermostat. Terminal 12 at
the Master control receives the switch live return
and should be wired to terminal 2 at the thermostat.
For programming details please refer to the instructions provided with the room thermostat. Alternatively contact
Hamworthy Heating Ltd for a copy of instruction manual.
8.6 Master control panel error codes
The following tables display the Master control errors messages. These messages relate to faults that can occur
within the Master control panel, or from the sensors and circuits connected to the Master control panel.
Errors can be divided into two groups: lock-out errors which can be automatically reset (E errors ) and permanent
errors (A errors ) which must be reset just by pressing the reset button.
8.6.1 “Error” mode
The display starts flashing when a fault occurs.
Follow the procedures detailed in figure 8.6.1, to establish the fault code and its relevance.
8.6.2 Controls in permanent lock-out
In case of permanent lockout of the burners, it is necessary to press RESET (S1)
If you press RESET (S1) while you are in ‘functioning display mode’
all boiler modules will be reset.
If you press RESET (S1) while you are displaying the error which
caused the permanent lock-out, only the boiler module involved will be reset.
Figure 8.5.3 - Thermostat wiring
