You're right Brian. But I'd check the existing settings before I pulled the cover...if it ain't broke... bmc
Sent from my iPad On Feb 20, 2013, at 8:39, brian <[email protected]> wrote: > 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]> 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]> 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 [email protected]. >>>>> > To post to this group, send email to [email protected]. >>>>> > 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]. >>>> To post to this group, send email to [email protected]. >>>> 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]. >>> To post to this group, send email to [email protected]. >>> 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]. > To post to this group, send email to [email protected]. > 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]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/brewtus?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
