Need some help
- Thread starter caprou
- Start date
This one!
We now need lots of info about your system.
Make/model of boiler?
Make model of programmer?
Other components - HW cylinder thermostat - motorized valves etc? (See pics)
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Hi
The boiler is a Worcester oil heatslave with a facia mounted programmer fitted to it.
I want to fit an external programmer as the boiler is in a outbuilding I have bought a Drayton LP522 programmer and need to know how to connect it up.
The boiler manual say's it has 4 wires and i bought the programmer because it said it was a 4 wire intallation but the back plate has 6 terminals.
Can you help please
Clive
The boiler is a Worcester oil heatslave with a facia mounted programmer fitted to it.
I want to fit an external programmer as the boiler is in a outbuilding I have bought a Drayton LP522 programmer and need to know how to connect it up.
The boiler manual say's it has 4 wires and i bought the programmer because it said it was a 4 wire intallation but the back plate has 6 terminals.
Can you help please
Clive
Worcester Heatslave 15/19
Fitting an external programmer:
Check that the electrical supply has been turned off and remove
the facia panel as described in Section 19.2 (15).
The external programmer must take its power supply from the
appliance. The leads must be insulated as they
operate at mains voltage.
Pass the leads through the hole provided in the control box
back panel and connect them to terminal block X4 to which
the leads from the facia mounted switch are currently still
connected. Disconnect the grey lead from the terminal block and connect,
in its place, the central heating control lead from the
programmer. (CH ON)
Disconnect the white lead from the terminal block and connect,
in its place, the domestic hot water control lead from the
programmer. (HW ON)
Disconnect the brown lead from the terminal block and connect,
in its place, a brown lead (live supply) to the programmer.
The remaining connection blue on the block is the neutral connection
for the programmer.
Where an earth point is provided on the programmer then this
should be wired to the appliance control box earth point on the
X1 terminal block.
Although inoperative, the facia mounted switch should be left in
place. Remove the spade connectors from the user operating
switch and discard the wires removed.
Refit the facia and set the programmer.
Check the operation of the appliance in response to the
switching of the programmer.
NOTE: Under no circumstances should the timer be connected
to a separate electrical supply. Safety is assured fom a single
fused supply to the boiler.
Fitting an external programmer:
Check that the electrical supply has been turned off and remove
the facia panel as described in Section 19.2 (15).
The external programmer must take its power supply from the
appliance. The leads must be insulated as they
operate at mains voltage.
Pass the leads through the hole provided in the control box
back panel and connect them to terminal block X4 to which
the leads from the facia mounted switch are currently still
connected. Disconnect the grey lead from the terminal block and connect,
in its place, the central heating control lead from the
programmer. (CH ON)
Disconnect the white lead from the terminal block and connect,
in its place, the domestic hot water control lead from the
programmer. (HW ON)
Disconnect the brown lead from the terminal block and connect,
in its place, a brown lead (live supply) to the programmer.
The remaining connection blue on the block is the neutral connection
for the programmer.
Where an earth point is provided on the programmer then this
should be wired to the appliance control box earth point on the
X1 terminal block.
Although inoperative, the facia mounted switch should be left in
place. Remove the spade connectors from the user operating
switch and discard the wires removed.
Refit the facia and set the programmer.
Check the operation of the appliance in response to the
switching of the programmer.
NOTE: Under no circumstances should the timer be connected
to a separate electrical supply. Safety is assured fom a single
fused supply to the boiler.
another fine answer by tony,
fit your programmer like a room stat and leave the original in place and set to constant, easy as abc
fit your programmer like a room stat and leave the original in place and set to constant, easy as abc
What about the orange wire ?
[/net]
The orange wire is inserted so that it bypasses the HW switch, ensuring that the boilere is on for HW whether the HW switch is ON or OFF.
The orange wire is in the timer not the boiler and you can independently operate the h/w and c/h with the timer.
Looking at the diagram the orange wire seems to come from the live supply and goes to nowhere I don't see what it’s for.
[/img]
Looking at the diagram the orange wire seems to come from the live supply and goes to nowhere I don't see what it’s for.
[/img]
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