Objective
Replacing the current spa controller with a custom wifi controlled controller.
Control Board
Schematic
Board Layout
Pump
Specifications
Waterway Executive 48 2.0 HP pump | |
|---|---|
Description | 2.0HP Waterway Executive 48 Spa Pump, 2 Speed Waterway OEM part # 3420820-1A 2.0" intake and 2.0" discharge, (Measures 3" outside to outside) |
| Voltage | 220-240volt |
| High Speed Details | 10.5 Amps high speed (3450 RPM) 2.5KW |
| Low Speed Details | 2.8 Amps low speed (1725 RPM) 0.67KW |
Cost Calculations
Assuming PEAK RATE = $0.21/kwh, OFF-PEAK = $0.13
| SPEED | Power Consumption | Rate | Cost/hour |
|---|---|---|---|
| Low Speed | 0.67kw | PEAK | $0.14 |
| OFF-PEAK | $0.09 | ||
| High Speed | 2.5kw | PEAK | $0.52 |
| OFF-PEAK | $0.33 |
Heater
Specifications
| Name | Universal Heater Assembly - 4 kW |
|---|---|
| Description | 15" heater manifold (measured from stainless steel flange to flange). 5 options for location of pressure switch (includes threaded plugs). Moveable bands allow movement of thermal well (for sensors) and studs to connect to pack box. Includes black split nut unions and white PVC unions (as pictured). - 2" white PVC slip connections accept 2" pipe (2-3/8" O.D.). - 2" threaded connections measure 3" O.D. on threads. |
| Supplier | Hot Tub Essentials |
| Voltage | 240v |
| Power Consumption | 4 kw |
Cost Calculations
Assuming PEAK RATE = $0.21/kwh, OFF-PEAK = $0.13
| Power Consumption | Rate | Cost/hour |
|---|---|---|
| 4kw | PEAK | $0.84 |
| OFF-PEAK | $0.52 |