Flow Switch

Flow Switch

This standard, dual-purpose control, mounted and wired in series with the main gas valve, shuts off the boiler in case of pump failure or low water flow.

Fig. 27: Flow Switch

Low Water Cut-Off (Optional)

The optional low water cut-off automatically shuts down the burner whenever water level drops below the level of the sensing probe. A 5-second time delay pre- vents premature lockout due to temporary conditions such as power fluctuations or air pockets.

Fig. 28: Low Water Cut-Off

High & Low Gas Pressure Switches (Optional)

The optional low gas pressure switch connection mounts upstream of the gas valve (on the inlet flange to the gas valve) and is accessible through the remov- able access panels on the rear of the boiler to reset the gas pressure switch, as necessary. It is used to ensure that sufficient gas pressure is present for prop- er valve/regulator performance. The low gas pressure switch automatically shuts down the boiler if the gas supply drops below the factory setting of 3.0 in. WC for natural gas or propane gas.

The optional high gas pressure switch connection mounts down-stream of the gas valve. Special ports are located on the backside of the gas valve and accessible from the front of the boiler (to reset the gas pressure switch), as necessary. If the gas pressure regulator in the valve fails, the high gas pressure switch automatically shuts down the burner.

Operation of either the High or Low Gas Pressure Switch will turn on an LED inside the switch housing. Push the top of the plastic switch housing as shown in Fig. 29 to reset a tripped pressure switch. The LED will go out when the switch is reset.

Fig. 29: High/Low Gas Pressure Switch

Blocked Vent Switch

This heater is equipped with a blocked vent pressure switch to prevent the operation of the boiler when too much of the vent is blocked. This switch is located on the left side of the heater near the left rear corner.

Fig. 30: Blocked Vent Switch

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Raypak 300, 850 Flow Switch, Low Water Cut-OffOptional, High & Low Gas Pressure Switches Optional, Blocked Vent Switch
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300, 850 specifications

Raypak is a renowned name in the heating industry, particularly known for its high-quality pool and spa heaters. Among their extensive product line, the Raypak 850, 500, 300, 400, and 700 models stand out for their reliability, efficiency, and cutting-edge technologies. Each model is designed to cater to different needs and applications while maintaining Raypak’s commitment to performance.

The Raypak 850 is designed for larger commercial pools or residential setups requiring high output. With a powerful heat exchanger made from copper and bronze, it ensures superior heat transfer and longevity. Its digital control system provides precise temperature regulation, enhancing user experience. Moreover, it features a durable construction with weather-resistant materials, ensuring lasting performance in various environments.

The Raypak 500 model offers a balance between efficiency and compactness. It features eco-friendly technology that reduces energy consumption without sacrificing performance. The integrated thermostat allows users to maintain consistent water temperatures, making it ideal for residential pools. This model is well-regarded for its user-friendly digital display, simplifying operation and monitoring.

For those needing a more moderate capacity, the Raypak 300 is an efficient choice. It combines robust engineering with an easy-to-use interface. Its advanced ignition system improves reliability while minimizing energy waste. The Raypak 300’s compact design allows for easy installation in various spaces, making it an excellent option for smaller pools.

The Raypak 400 heats water quickly and efficiently, making it suitable for both residential pools and spas. It features a high-capacity heating system that ensures optimal performance. With a clear LED display, users can easily monitor their settings, while the integrated diagnostics provide real-time feedback for maintenance and troubleshooting.

Lastly, the Raypak 700 model is known for its versatility and robust performance. It is equipped with advanced safety features, including a high limit switch and water flow detection mechanism, to ensure safe operation. The model's energy-efficient design enhances its eco-friendliness, making it a popular choice among environmentally conscious users.

Collectively, these Raypak models exemplify superior engineering, performance, and user-friendliness. Their innovative features ensure that they meet the varied demands of pool owners while providing reliable heating solutions for leisure and relaxation. Whether for commercial or residential use, the Raypak 850, 500, 300, 400, and 700 offer unmatched quality and efficiency.
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