Thanks Todd. So, if my incoming pressure is say 25 PSI I will need to adjust the OPV and pump pressure. First, I set the pump pressure for 11 bar and then set the OPV and set the pump pressure back to 9 PSI, correct?
Brian On Tuesday, February 19, 2013 7:31:43 PM UTC-7, Todd Salzman wrote: > > When you switch out the vibe for a rotary pump you still keep the OPV and > it is located on the outlet of the rotary pump. When with the rotary pump > the OPV is just a safty relief that will open up if the boiler overheats. > We set them to open at 11 bar. The pump/brew pressure is set at the > internal bypass on the pump and we se that at 9 bar. > > Hope this help. > > Todd Salman > Whole Latte Love > > On Tue, Feb 19, 2013 at 9:28 PM, Benjamin McCafferty > <[email protected]<javascript:> > > wrote: > >> Hmmm...it has been a while since I switched my vibe pump out for rotary, >> but for whatever reason I was thinking the OPV is eliminated when you go >> rotary. I'm sure someone else will chime in here...but my original OPV is >> no longer behind the adjustment hole behind the drip tray. Perhaps in >> another location internally. On the vibe models, the OPV is how the brew >> pressure is set. I could see it being a safety thing on the rotary pump >> models? >> >> Yes, brew pressure and pump pressure are the same thing. >> >> bmc >> >> Sent from my iPad >> >> On Feb 19, 2013, at 14:10, brian <[email protected] <javascript:>> wrote: >> >> 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 <[email protected]> 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. >>> > To post to this group, send email to [email protected]. >>> > Visit this group at >>> > http://groups.google.com/**group/brewtus?hl=en<http://groups.google.com/group/brewtus?hl=en>. >>> > >>> >>> > For more options, visit >>> > https://groups.google.com/**groups/opt_out<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 [email protected] <javascript:>. >> To post to this group, send email to [email protected]<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 [email protected] <javascript:>. >> To post to this group, send email to [email protected]<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. 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