Model "D" Fre-Heater®
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FRE-HEATER® HEAT RECOVERY REFRIGERATION PRODUCTS

UP TO 60% of the normally wasted energy discarded from refrigeration and air-conditioning systems can be recovered with a Mueller® Fre-Heater. By transferring the recovered heat energy to water, vast amounts of free hot water can be stored for use when and where the need arises. Mueller Temp-Plate® is the heart of the Fre-Heater system. This highly efficient heat transfer surface is constructed of 100% stainless steel. Thoroughly tested and listed by CSA US, it meets all codes required for double-wall heat exchanger construction. Mueller Fre-Heater’s industrial-grade, glass-lined...

Model “DHS” Features Mueller Model “DHS” Fre-Heaters channel recovered energy into a single Fre-Heater unit, producing more than enough hot water to satisfy your needs. • Designed for 150 psi maximum water working pressure and 500 psi maximum refrigerant working pressure. • Available in 119-gallon capacity. • Model “DHSE” Fre-Heaters offer all of the features of standard Model “DHS” Fre-Heaters with the addition of a 4,500- or 6,000-watt, 240-or 460-volt electric element. Model “D” Features Mueller Model “D” Fre-Heaters channel recovered energy from up to six refrigeration sources into a...

* Refrigeration tonnage capacities are 30°F evaporator ton loads, not total heat of rejection tons. Pressure drop through a Fre-Heater refrigeration circuit will be approximately 15 psi at the maximum tonnage application. Pressure drop at the mid-range of tonnage application will be approximately 5 to 7 psi. The best overall refrigeration/heat recovery system efficiency is usually obtained at or below the mid-range tonnage application. ** Aquastat included. *** Ammonia only. Electrically Assisted Units Fre-Heater Element Electrical

Fre-Heater Dimensions .75" FPT HOT WATER OUTLET CONNECTION 1.5" FPT HOT WATER OUTLET CONNECTION .75" FPT HOT WATER OUTLET CONNECTION .75" PRESSURE/ TEMPERATURE RELIEF VALVE .75" PRESSURE/ TEMPERATURE RELIEF VALVE .75" PRESSURE/ TEMPERATURE RELIEF VALVE ANODES ANODE .75" FPT COLD WATER INLET AND DRAIN CONNECTION 1.5" FPT COLD WATER INLET AND DRAIN CONNECTION .75" FPT COLD WATER INLET AND DRAIN CONNECTION .75" FPT WATER CONNECTIONS .625" ODM REFRIGERATION CONNECTIONS 1.5" FPT HOT WATER OUTLET CONNECTION 80-GALLON MODEL “D” FRE-HEATER .75" FPT WATER CONNECTIONS .75" ODM REFRIGERATION...

Mueller Fre-Heater Fre-Heater Top Head Layout R1-IN R1-IN R1-OUT ANODE PLUG ANODE PLUG ANODE PLUG .75" FPT WATER CONNECTIONS .625" ODM REFRIGERATION CONNECTIONS .75" FPT WATER CONNECTIONS .625" ODM REFRIGERATION CONNECTIONS .75" FPT WATER CONNECTIONS .75" ODM REFRIGERATION CONNECTIONS .75" FPT W/ PLUG ANODE PLUG ANODE PLUG ANODE PLUG .75" FPT W/ PLUG ANODE PLUG ANODE PLUG ELECTRICAL COMPONENTS “DE” MODEL ONLY 1.5" FPT WATER CONNECTIONS .75" ODM REFRIGERATION CONNECTIONS 1.5" FPT WATER CONNECTIONS 1.125" ODM REFRIGERATION CONNECTIONS 1.5" FPT WATER CONNECTIONS 1.625" ODM REFRIGERATION...

About Paul Mueller Company Paul Mueller Company is headquartered in Springfield, Missouri, and was incorporated in 1946. For over half a century, we have been building a reputation as an outstanding manufacturer of stainless steel tanks and industrial processing equipment that make the customer’s process smoother, faster, and more reliable. Mueller has evolved into a global process solution provider offering manufactured equipment and components, integrated process systems, and expanded-scope construction. Our philosophy is simple: We are committed to meeting and exceeding our customers’...

1600 West Phelps Street • Springfield, Missouri 65802, U.S.A. Phone: 417-575-9000 • 1-800-MUELLER • Fax: 1-800-436-2466 www.paulmueller.com • Email: refrigeration@paulmueller.com ©2001-2013 Paul Mueller Company