| ??? 06/24/06 13:50 Read: times |
#119010 - Take care... Responding to: ???'s previous message |
Michael said:
I trying to replace a 2k ohm mechanical pot in my tankless water heater with a digital pot but am having difficulties finding one with a 2k end to end resistance. If any one has any suggestions where I may find one like this I would appreciate your help. I have searched the net and found as low as 10k at Dallas/Maxim. The mechanical has 3 leads. I do not know what the circuit is on the control board. If you don't know what the circuit is, then you probably cannot use a digital pot. Take care, input and output voltages of such a digtal pot must fullfill some maximum specifications. You should at least know whether these are violated by the circuit! Kai |
| Topic | Author | Date |
| Looking for 2k ohm digital pot | 01/01/70 00:00 | |
| Take care... | 01/01/70 00:00 | |
| Checking the voltage during operation | 01/01/70 00:00 | |
| Traced circuit to the PIC on the board | 01/01/70 00:00 | |
| hmmm | 01/01/70 00:00 | |
| I would be very careful | 01/01/70 00:00 | |
| ? | 01/01/70 00:00 | |
| This is how the Mechnical Pot works | 01/01/70 00:00 | |
| Am I missing something ? | 01/01/70 00:00 | |
| What would be the fun.. | 01/01/70 00:00 | |
| The fun would be to avoid a barbecue | 01/01/70 00:00 | |
| fun vs safety | 01/01/70 00:00 | |
| Exactly!! | 01/01/70 00:00 | |
| Already installed on the unit | 01/01/70 00:00 | |
| thankless water heaters | 01/01/70 00:00 | |
| Oh yes there is... | 01/01/70 00:00 | |
| no way feasible, not no way in the world | 01/01/70 00:00 | |
| Valve in the outlet | 01/01/70 00:00 | |
| There is always the controled facsets | 01/01/70 00:00 | |
| how fast are they? | 01/01/70 00:00 | |
| Flush fast | 01/01/70 00:00 | |
| The unit has no flow control or sensor | 01/01/70 00:00 | |
that will depend on the plumbing | 01/01/70 00:00 | |
| Showers | 01/01/70 00:00 |