Water Connections & System Piping, Relief Valve

The gas valve is provided with pressure taps to measure gas pressure upstream of the gas valve and downstream which is the same as the manifold pressure.

WATER CONNECTIONS & SYSTEM PIPING

The pipe size and fittings between the heater and the tank should be at least 1" for model 90, and 1-1/4" for models 135 and 195. This is based on the tank being located as close to the heater as possible, as shown in the drawing below:

Hot Water Supply	T & P Relief Valve

Thermometer

Cold Water

Recirculation Water

Check Valve

Thermostat

Pump

Pressure Relief Valve

If this water heater is installed in a closed water supply system, such as one having a back-flow preventer in the cold water supply line, means shall be provided to control thermal expansion. Contact the water supplier or local plumbing inspector on how to control this situation.

When this water heater system is supplying general purpose hot water requirements for use by individuals, a thermostatically controlled mixing valve is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.

Thermometer(s) should be installed so that they indicate the water temperature at or near the outlet of the storage tank.

RELIEF VALVE

A new combination temperature and pressure (T & P) relief valve, complying with the Standard for Relief Valves and Automatic Gas Shut Off Devices for Hot Water Supply Systems, ANSI Z21.22, must be installed in the opening provided on top of the storage tank, at the time of installation. No valve is to be placed between the relief valve and the storage tank.

The pressure rating of the relief valve must not exceed the 160 maximum working pressure indicated on the water heater rating plate. The BTUH rating of the relief valve must not be less than the BTUH input of the heater.

Connect the outlet of the relief valve to a suitable open drain. The discharge line must pitch downward from the valve to allow complete draining (by gravity) of the relief valve and discharge line. The discharge line should be no smaller than the outlet of the valve. The end of the discharge line should not be threaded or concealed, and should be protected from freezing. No valve of any type, restriction or reducer coupling, should be installed in the discharge line. Local codes shall govern installation of relief valve.

090A, 135A, 195A specifications

Raypak, a leading manufacturer in the pool and spa heating industry, presents its advanced line of heaters, specifically the Raypak 195A, 090A, and 135A models. These heaters are renowned for their high performance, durability, and energy efficiency, making them ideal for a variety of applications, including residential and commercial pools and spas.

The Raypak 195A heater stands out with its powerful heating capacity, which is designed to quickly raise water temperatures, ensuring comfortable swimming conditions even in cooler climates. Its compact design allows for easy installation in tight spaces, and it operates quietly, enhancing the user experience. The 090A, meanwhile, is exceptional for smaller pools or spas, delivering reliable heating performance with energy-saving features. This model is particularly popular among homeowners looking to maintain a comfortable temperature without inflating their energy bills.

In contrast, the 135A model offers an impressive balance of power and efficiency, making it suitable for medium-sized pools. It incorporates advanced technologies to minimize energy consumption while maximizing output, allowing users to enjoy their pools while being environmentally conscious.

All three models boast Raypak's innovative digital control system, which provides precise temperature management and easy programming. Users can easily set desired temperatures and schedules, minimizing manual adjustments and enhancing convenience. The built-in diagnostic capabilities alert users to any potential maintenance needs, assuring long-term reliability and performance.

Furthermore, the heaters utilize a copper heat exchanger, known for its exceptional thermal conductivity, which ensures rapid heating and corrosion resistance. The specially designed rust-resistant cabinet protects the internal components from the elements, prolonging the lifespan of the heaters.

In addition to their robust features, these Raypak models are designed for easy maintenance. The streamlined layouts make it simple for service technicians to access vital components, reducing downtime and ensuring efficiency when repairs are necessary.

With their combination of advanced technology, energy efficiency, and user-friendly features, the Raypak 195A, 090A, and 135A models stand as top choices for pool and spa heating solutions. Their reliability and performance make them a valuable addition to any backyard oasis, allowing users to enjoy warm water year-round, regardless of the climate.