Product Information
Description
Coates Heater Company Harwil 1/2" Flow Switch (MPN: 23000105)
Maintain the peak performance and safety of your pool or spa heating system with the authentic Coates Heater Company Harwil 1/2" Flow Switch, MPN 23000105. This critical component is engineered to accurately detect water flow, ensuring your heater operates only when there is sufficient circulation, thereby preventing potential damage from overheating and common error codes.
Key Features & Benefits:
- Essential Safety & Performance: Designed to protect your spa or pool heater by ensuring proper water flow detection, preventing heating without circulation and safeguarding against error codes like FLO, FL, OH, FL1, or FL2.
- Direct Compatibility: Specifically engineered for use with Coates and Harwil heaters, guaranteeing a perfect fit and reliable operation.
- Robust Construction: Features a durable ABS body and a resilient stainless steel spring arm, built for longevity in demanding aquatic environments.
- Optimal Flow Detection: Activates at 10 GPM (gallons per minute) and deactivates at 8 GPM, ensuring precise control over your heating system.
- Standard Connection: Equipped with a 1/2" NPT (Male Pipe Thread) connection for straightforward installation into existing plumbing systems.
- Reliable Electrical Performance: Utilizes a Single Pole Normally Open (SPNO) reed switch with a 0.5A rating, capable of handling up to 300VAC/350VDC and 50 watts of power.
- Wide Operating Range: Functions effectively in temperatures from 32˚F to 200˚F (0˚C to 93˚C) and pressures up to 250 psi (1724 kPa).
- Low Pressure Drop: Engineered for minimal pressure drop, typically less than 1.0 psig at normal flow rates, preserving system efficiency.
- Compact Design: Small size and low profile allow for easy mounting even in crowded installations.
- Proudly Made in the USA: Manufactured with quality and precision in the United States.
Technical Specifications:
- Manufacturer: Coates Heater Company (Manufactured by Harwil Corporation)
- Part Number (MPN): 23000105
- UPC/GTIN: 710882488970
- Connection Size: 1/2 inch
- Connection Type: Male Pipe Thread (MPT)
- Flow Switch Type: Q12DS
- Switch Type: SPNO (Single Pole Normally Open) Reed Switch
- Amperage (Max Switching): 0.5A
- Voltage (Max Switching): 300VAC / 350VDC
- Power (Max): 50 watts
- Working Temperature: 32˚F – 200˚F (0˚C – 93˚C)
- Working Pressure: 250 psi (1724 kPa)
- Body Material: ABS (for Harwil Q12DS)
- Arm Material: Stainless Steel (for Harwil Q12DS)
- Country of Origin: United States
Additional Info
| Category | Parts Pool Parts Pool Heater Parts |
| SKU | PST-23000105 |
| MPN | 23000105 |
| Manufacturer | Coates Heater |
| Weight | 0.81 lb |
Let customers speak for us
Part turned out to not work with the NORVS300 control module. However shipping was quick and company was very responsive when I need the CMS Code. Although the part did not work that was my fault, the PST service was great!
I have been trying to reach you as this circuit board is the wrong one. I would like to return it and get a RA # from your company. Please call me at [****]
Bill Baysura
We used this jet to replace an old Pearl jet that was broken. The hole was cut larger for this to fit and plumbing adapted accordingly.
Theses people are wonderful to deal with there was some confusion on my end regarding the order I placed and they were helpful and understanding thank you again.
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Way better than expected
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Can't say about product bc its not pool season yet
Union Couples are exactly what i needed to replace hose. Thanks for the quick ship and good price!
