LONDINIUM R arrived

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This just in. I heard the heavy sliding door of the truck, looked out and indeed there was the delivery, 9 minutes ahead of the noon sharp delivery time estimated by DHL yesterday 4pm.




I will now unpack and install. For anyone curious to know the difference between what was until the end of 2016 called the L1 and this machine in the same outer body but with a different and upgraded internal architecture, the following.

In short, it has variable pre-infusion and it makes espresso with water out of the fresh water tank rather than water that comes indirectly from the boiler.

More specifically, in the words of Reiss Gunson quoted from his forum:
the L1/2/3 all share the same architecture with approximately 7 litres of boiler per group and inclined HX tubes that run transverse across the length of the boiler. they are intended for commercial applications, and in my view a bit over the top for domestic use
the LR seeks to mimic the above design, but in a smaller footprint
so for the LR we took the L1(2012-2016) that you know and love, and removed the trombone pipe that feeds the open thermosiphon from the boiler. we capped off the boiler fitting where we removed the pipe.
then we pushed the water box as far to the right as we could to make room for the rotary pump
then we filled in the left hand side frame partially to create a surface upon which to mount the rotary pump
then we removed the piston pump and put the rotary in its place
then we removed all of the plumbing from the end of the small braided pressure hose where it meets the inlet solenoid on the L1(2012-2016), all the way to the boiler
in its place we connected the pressure hose to a manifold, just as you find on the L1/2/3
the manifold allows the cold water being delivered by the rotary pump to be split into two streams; one fills the boiler and the other fills the heat exchanger that runs longitudinally along the boiler
one of the legs of the manifold has a secondary pressure switch supplied by Ceme which allows you to alter the pre-infusion pressure if your coffee needs demand it. the machine is supplied with this pressure switch set to 3 bar
in all other respects the machine is unchanged

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