Thanks for the reply. >From the IV manual posted last month I see on page 9 and 10 information about adjusting the pump pressure, OPV and brew pressure. When it refers to pump pressure, is that the same as the brew pressure adjustment or something different? It doesn't appear to be different based on the pictures. The incoming water pressure will vary significantly from 40 PSI which is how they set it when it ships (per the top of page 9).
>From the manual at page 9: *Rotary Pump Machines* * * The Brewtus IV-R is designed to be used with a water line connection. The pump will work fine off any standard incoming water pressure. The water line can be dropped into a water container, if you like, but you must be careful not to let it run dry as it could damage the pump. Before we ship the machines, we set the brew pressure to 9 Bars at an incoming pressure of 40 PISG. If the incoming pressure is higher than 40 PSIG, the brew pressure may have to be adjusted down; if it is lower, the pressure may have to be adjusted up. *Rotary Pump* *CAUTION: Adjusting the pump pressure can be time consuming and since it is very close to the electrical connection on the boiler, we recommend that all adjustment are done when the machine is not plugged in.* Note: We recommend that the Rotary pump be set to 9 Bars with the back flush disc in place. The OPV should be set to open at 11 Bars. *Adjusting the Pump Pressure:* Adjust the pump pressure by loosening the lock nut then turning the adjustment screw. Turn the adjustment screw clockwise to raise the pressure and counter clockwise to lower the pressure. *Setting the OPV:* We set this before your machine has shipped. To set the OPV, you will have to run the machine with the backflush disc in place. First, raise the brew pressure to 11 Bars. Then, with the pump running, turn the adjustment screw on the OPV so that it just starts to let water flow out of the overflow tube. It is now set to open at 11 Bars. *Setting the Brew Pressure:* Turn the adjustment screw counter clockwise to lower the pressure and clockwise to raise it. Between adjustments, lower the lever on the brew group to release the pressure. Make your adjustment with the machine unplugged and then plug it in and test your setting. When you have the pressure adjusted, tighten the lock while holding the adjustment screw in place or it may turn and change the setting. On Monday, February 18, 2013 7:48:02 PM UTC-7, bmacpiper wrote: > > I run my steam boiler at 1.45 bar (set that way from WLL when I got it), > and I'd recommend 9 bar against a backflush disc, which will end up being > about 8.5 bar when pulling a shot. > > Enjoy the new machine! > bmc > > Sent from my iPad > > On Feb 18, 2013, at 18:35, brian <par...@gmail.com <javascript:>> wrote: > > > I live in Colorado and new to the group. I have a PID'd Gaggia Classic > that I've been using for a couple months and decided I wanted something > more. The IV-R should be here Thursday and I'm real excited. > > > > I've got the plumbing all ready to go with a 3/8" coming from the > basement with a shutoff at the tap and near the machine. I've also got a > pressure regulator near the machine. I've got a whole house softener and > the water tastes great from the tap so I think I'm good there. I'm going > to double check the hardness and PH just so I know. I have been using a > carbon filter for the Gaggia. > > > > I'm reading through the forum but thought I'd post and see if anyone has > suggestions for things I should pay attention to. Reading through the > manual I see it might be wise to adjust the pressures on the machine once I > dial in the pressure regulator since it was set for an incoming pressure of > 40 psi.. Any suggestions on those settings? > > > > Thanks for any help! > > > > -- > > You received this message because you are subscribed to the Google > Groups "Brewtus" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to brewtus+u...@googlegroups.com <javascript:>. > > To post to this group, send email to bre...@googlegroups.com<javascript:>. > > > Visit this group at http://groups.google.com/group/brewtus?hl=en. > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to brewtus+unsubscr...@googlegroups.com. To post to this group, send email to brewtus@googlegroups.com. Visit this group at http://groups.google.com/group/brewtus?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
