Jacuzzi Gatsby Mechanical Operation And Repair

Chapter TWO HEATERFunction:The heater is a simple device. Electricity is applied to the heater element.Because the element is made to resist the current but not completely, theheater’s resistance causes the element to glow. The result is heat.Overview:The heater does just what’s name says, heats the water. Generally on modelswith horizontal heaters you will not notice noticeably warm water coming out ofthe jets because of the design of the water flow. On spas with a canister heaterand circulation pump, you will because the heater water only comes out of one ortwo heater ports.The two basic flow methods start the same way; the water is pulled from thelower part of the spa (called suction fittings) and one or two assemblies withfilters designed to pull water from the top of the spa. The theory is this will drawwater from upper and lower and therefore keep a thorough water movement.On spa models without a small circulation pump the water is pulled through the#1 pump and into the spa. This pump/motor is typically 2 speeds.On spa models with a small circulation pump the water flows from the filter,through the pump, through the heater and back into the spa.The heater itself is simply an element that heats. Electrical current enters it andslows down. This slowing down causes the element to heat. As water flows bythe heated element the temperature is transferred from the element to the water.It’s typical to heat 1-6 degrees per hour. The spas that operate on 110-130vactypically heat 1-2 degrees per hour. Spas that operate on 220-240vac heat 5-6degrees per hour.14