General Safety

To meet commercial hot water requirements, the tank- stat is adjustable up to 190°F. However, water temperatures over 125°F can cause severe burns instantly or death from scalds. This is the preferred starting point for setting the control for supplying gen- eral purpose hot water.

Safety and energy conservation are factors to be con- sidered when setting the water temperature on the tankstat. The most energy efficient operation will result when the temperature setting is the lowest that satis- fies the needs consistent with the application.

Water temperature over 125°F can cause instant severe burns or death from scalds.

Children, disabled, and elderly are at highest risk of being scalded.

See instruction manual before set- ting temperature at water heater.

Feel water before bathing or show- ering.

Temperature limiting valves are available, see manual.

Table A details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications.

Temperature	Time to Produce Serious Burn

120°F	More than 5 minutes

125°F	1-1/2 to 2 minutes

130°F	About 30 seconds

135°F	About 10 seconds

140°F	Less than 5 seconds

145°F	Less than 3 seconds

150°F	About 1-1/2 seconds

155°F	About 1 second

Table courtesy of Shriners Burn Institute.

Table A: Time to Produce Serious Burn

Time/Temperature

Relationships in Scalds

The temperature of the water in the storage tank can be regulated by setting the temperature dial on front of the tankstat. To comply with safety regulations, the tankstat was set at its lowest setting before shipment from the factory.

Fig. 1 illustrates the tankstat. To adjust the water tem- perature, insert a small straight screwdriver into slotted screw in hole in front of tankstat and turn wheel to desired setting. Thermostat is adjustable up to 190°F.

Maximum water temperatures occur just after burner has shut off. To find hot water temperature being deliv- ered, turn on a hot water faucet and place a thermometer in the hot water stream and read the thermometer.

Fig. 1: Tankstat Adjustment

0090A, 0135A, 0195A specifications

Raypak is a leading manufacturer in the pool and spa industry, known for its reliable and innovative heating solutions. Among its product line, the Raypak 0090A, 0135A, and 0195A are notable models that stand out for their efficiency, durability, and advanced technology.

The Raypak 0090A is ideal for residential pools, offering a heat output of 90,000 BTU per hour. It utilizes a copper heat exchanger, which provides efficient heat transfer and is resistant to corrosion, making it perfect for chlorinated pools. This model features a digital thermostat that enhances user control, allowing for precise temperature settings. Additionally, the 0090A is compatible with both natural gas and propane, providing flexibility depending on user preference.

The Raypak 0135A, with its 135,000 BTU output, is designed for larger residential pools or smaller commercial applications. This model employs advanced energy-efficient technology, helping to reduce operational costs while maintaining optimal heating performance. One of the key features of the 0135A is its built-in electronic ignition system, which improves reliability and eliminates the need for a standing pilot, enhancing safety and efficiency. The unit's compact design allows it to fit in tight spaces while still providing robust heating capabilities.

The Raypak 0195A is the most powerful of the trio, delivering 195,000 BTU, making it suitable for larger pool setups and high-demand environments. It also uses a copper heat exchanger, ensuring excellent heat retention and durability against corrosion. The 0195A is equipped with an easy-to-use digital display, offering intuitive controls for temperature adjustments and operational monitoring. This model also incorporates a high-tech air intake design, which maximizes airflow and reduces energy consumption.

All three models are designed for outdoor installation and possess weather-resistant features, ensuring longevity and reliability through various environmental conditions. Additionally, they are equipped with easy access service panels for maintenance, ensuring that servicing is efficient and straightforward.

In summary, Raypak's 0090A, 0135A, and 0195A models are designed to meet diverse heating needs with advanced technology, energy efficiency, and robust construction, making them excellent choices for anyone looking to enhance their pool experience.