Pool Systems Dashboard: Difference between revisions
Matt Parnell (talk | contribs) |
Matt Parnell (talk | contribs) No edit summary |
||
| Line 62: | Line 62: | ||
!Description | !Description | ||
|- | |- | ||
| | |< 16 | ||
| | |Red | ||
| | |Critical Depth | ||
|- | |||
|16-46 | |||
|Yellow | |||
|Low Depth (Auto-Fill Threshold) | |||
|- | |||
|46-60 | |||
|Green | |||
|Nominal Depth (See Note) | |||
|- | |||
|60-76 | |||
|Blue | |||
|Excess Depth | |||
|- | |||
|> 76 | |||
|Red | |||
|Overflow Depth | |||
|} | |} | ||
Note: The "nominal" depth of the surge tank is subject to future revision. At this time, lacking a proper drain modulating valve, it is not possible to provide "surge" capacity (keep the tank depth lowered during periods of high gutter flow). As a result, some portion of the "nominal" and "excess" depth is expected when the pool level is high and/or there is a large amount of activity in the pool. Ideally, the surge tank should usually remain below the gutter inlet level. | |||
When the critical depth is met, this may result in pump shutdown (per the PLC) to prevent taking on air. The surge tank water level is insufficient to maintain operation. When enabled, auto-fill begins at the upper end of the "low" depth threshold and ends when the upper end of the "nominal" depth is met. A large amount of surge tank depth hysteresis is needed when an actual pool depth measurement is lacking. | |||
The tank nears overflow at the "overflow" depth threshold. No specific action is taken by the PLC at this point. | |||
=== Out Flow === | === Out Flow === | ||
| Line 72: | Line 94: | ||
Shows the out flow rate in gallons per minute (GPM). | Shows the out flow rate in gallons per minute (GPM). | ||
The color bands are determined as follows: | |||
{| class="wikitable" | |||
!Range<br>(°F) | |||
!Color | |||
!Description | |||
|- | |||
|< 490 | |||
|Red | |||
|Very Low Flow | |||
|- | |||
|490-570 | |||
|Yellow | |||
|Low Flow (See Note) | |||
|- | |||
|570-670 | |||
|Green | |||
|Optimal Flow | |||
|- | |||
|> 670 | |||
|Yellow | |||
|High Flow | |||
|} | |||
A target flow rate of 600 GPM has been established for manual adjustment. This flow rate: | |||
* Meets the minimum pool turnover rate of 4 times per day (every 6 hours) for a 203,500 gallon pool. | |||
* Is within some margin of the maximum flow rate set by the sand filters (140 GPM x 4 = 580 GPM). | |||
To prevent [[Sand Filters#Channeling|channeling]] in the sand filters, an upper bound of 670 GPM has been set (somewhat arbitrarily). The operator should try to keep as close to 600 GPM operation as possible (without dipping below 570 GPM). | |||
=== Inlet Temperature === | === Inlet Temperature === | ||
| Line 86: | Line 139: | ||
!Description | !Description | ||
|- | |- | ||
| | |< 79 | ||
|Blue | |Blue | ||
|Low Temperature (Temperature Controller Alarm) | |Low Temperature (Temperature Controller Alarm) | ||
| Line 146: | Line 199: | ||
=== ORP === | === ORP === | ||
[[File:ORP Graph Example.png|frame|An example of an ORP graph.]] | |||