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LP-179 REV. 11.26.14
PART 2 – BEFORE YOU START
A. WHAT’S IN THE BOX
Also included with the heater:
Intake PVC Tee with Screens
Exhaust PVC Coupling with Screens
Temperature and Pressure Relief Valve
Two Threaded Brass Caps (PHM Models Only)
Installation Manual
Warranty
Solar Addendum (Solar Models Only)
LP Conversion Kit (Natural Gas Models Only)
B. HOW THE HEATER OPERATES
Modulation Condensing Technology is an intelligent system that delivers highly efficient water heating, while maximizing efficiency
by measuring the data parameters of your water heating system. Some of its features are:
Stainless Steel Water Storage Tank
The stainless steel water storage tank has a combustion chamber submerged into the tank water. When the water heater is fired,
combustion gases heat the combustion chamber walls, transferring heat directly into the surrounding water. These hot gases are blown
into secondary heat exchanger coils, where more heat is transferred into the water, removing even more heat from the gases.
Modulating Combustion System
Modulation during water heating operation is based on tank temperature. The control monitors the system to regulate burner output
during operation to match system demand. This increase in efficiency allows for substantial fuel savings.
Gas Valve
The gas valve senses suction from the blower, allowing gas to flow only if the gas valve is energized and combustion air is flowing.
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