Circulation Heaters. Standard Construction. 2 Star Electric to Order Call Terminal Box. Flanged Immersion Heater. Outlet.

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1 Standard Construction INDEECO is known in the electric heating industry as a provider of custom designed, quality equipment. Equipment supplied ranges from skid components, like circulation heaters and remote control panels, to sophisticated, selfcontained heat transfer systems. INDEECO s customers include skid packagers, as well as end users. The standard circulation heater offering is described here. Listings of standard circulation heaters are contained on pages. See pages 1417 for custom features available. The standard circulation heater construction includes an INDEECO Pipe Thread or Pipe Flange Immersion Heater mounted in a thermally insulated pressure vessel with inlet and outlet nozzles. factory installed and prewired thermostat provides automatic process temperature control. Six heater mounting options are available to meet your specific installation requirements. Terminal Box Flanged Immersion Heater Outlet Nozzle Inlet Nozzle Galvanized Insulation Jacket Drain Plug 2 Star Electric to Order Call

2 Immersion Heater Designed and built by INDEECO, all pipe thread and pipe flange immersion heaters include these standard features. Permanent Bus Bars are provided to prevent field failures due to loose electrical connection. Pressure connectors are attached to the bus bars for field wiring of heavy gauge wire. Copper bus bars are standard. Stainless steel bus bars are required for high temperature applications. Industrial Grade tubular elements are manufactured by INDEECO. The.475" diameter design provides extra electrical insulation for better dielectric strength. Element Spacers, made from material similar to the element sheath, maintain a uniform distance between elements. This prevents hot spots that can reduce heater life and burn temperature sensitive materials flowing through the circulation heater. Spacers are perforated to allow for maximum flow and are installed in a manner to allow the heating element to expand and contract freely. Element Bends are repressed 0 at the Ubend area to improve dielectric insulation integrity and to prevent potential hot spots. Thermostat n INDEECO Type D thermostat is factorymounted and prewired to give automatic process temperature control. The standard range is 00 F. Its liquidfilled sensing bulb has an inherent sensitivity of ± 5 F; however, the actual process temperature differential depends on a number of application factors. The Type D thermostat comes complete with integral On/Off switch, pilot light and external adjusting knob. Both two and threepole models are available. Heaters provided with pilot duty thermostats require field wiring to a magnetic contactor. See Table IV on page. MoistureResistant Epoxy Terminal Seals are standard for all circulation heater designs with maximum process temperatures of 0 F. Star Electric to Order Call

3 Typical pplications INDEECO circulation heaters are used to maintain, raise, preheat and boost process temperatures from 50 F to 10 F for a wide variety of liquids and gases found in commercial, industrial and military applications. dhesives ir Heating (Process) mmonia nodizing Equipment utomotive and Engines Chemical Processing Curing Cryogenic Processing Degreasing Tanks Desalinization Equipment Dessicant Drying Drying Food Processing Freeze Protection Fuel Oils Gasoline Refining Heat Transfer Systems High Pressure ir or Gases Hydraulic Oils Laboratory Work Lubrication Oils Metal Cleaning Baths Nitrogen Oil Purifiers Oil Refining Oils Paint Lines Pasteurizing Pipeline Heating Plastic Machinery and Processes Platens Plating Tanks Preheating Presses Process ir and Liquids Purification Systems Rinsing/Cleaning Rolls and Cylinders Steam Heating Superheating Tank Heating (Process, Storage) Textiles Wash Tanks Waste Water/Sewage Treatment Water (Deionized, Potable, Process) System Configurations Closed Loop Systems The circulation heater is installed in a system where the liquid or gas to be heated is recirculated through the heater in a closed loop configuration. pplications of this method fall into the two distinct categories of Indirect and Direct Heating. Indirect Heating: heating medium such as Dowtherm, Therminol, ethylene glycol, water, oil or steam is heated as it flows through the heater. The heating medium is continuously recirculated through coiled tubing, pipes or vessel jackets which are wrapped around or inserted directly into storage tanks, vessels, molds, dies, presses and rolls which are to be heated. Typical pplications Include: Viscous fluids and other temperature sensitive materials such as adhesives, asphalt, chocolate, syrups and varnish found in tanks and process vessels. Corrosive materials like acids and chemicals which would quickly corrode heating elements directly immersed in the material. Platens, molds, presses or rolls found in plastic injection molding/extrusion processes, textile industries and food processing plants. Some systems may involve high temperatures and pressures. 4 Star Electric to Order Call

4 Direct Heating: The process liquid or gas is recirculated directly through the heater in a closed loop system. Selecting the proper element watt density is very important. If the watt density is too high, the process fluid may carbonize or break down chemically. Typical pplications Include: Testing systems such as a test stand where the circulation heater is used to maintain uniform oil temperature during the testing of automobile engines. Laboratories and R & D centers have similar applications for a wide variety of liquids and gases. Open Heating Systems The circulation heater is used in a system where the liquid or gas flows through the heater only once and is discharged directly into the application. Typical pplications Include: Booster heating systems which increase the temperature of the liquid, gas or steam just prior to being discharged directly into applications, such as steam cleaning, commercial dishwashers and high temperature process gas heating. Drying systems where recirculated air or steam is heated or boosted to dry inks, textiles, bottles, pharmaceutical powders, cure parts or remove moisture from pressurized air systems. Winter freeze protection for water tanks, cooling towers and sprinkler systems. Diesel generator sets where cooling water and lubrication oil must be kept warm to assure fast startup in cold weather. Lubrication and hydraulic oil heating for maintaining the correct oil temperature and viscosity which is crucial for efficient operation of the pumps, transmission, engine or other equipment in the closed loop system. Industrial processing tanks or baths which use the circulation heater to provide precise temperature control for oil quenching, cleaning tanks, rinsing tanks, degreasing tanks and water baths. dvantages of circulation heater systems compared to direct immersion heaters for tank heating applications include: Heating elements are located away from areas of heavy sludge buildup or possible physical damage. Tank interior is kept open for process operations. Tank is easier to clean. Heater can be removed for inspection without draining the storage tank. Fuel oil heating where the circulation heater raises the temperature of fuel oil to reduce its viscosity, facilitating its flow into the burner. Spraying systems which use the heater to reduce viscosity or preheat the material before being pumped into a spray nozzle. For example, heavy petroleum is heated before it is sprayed over the top of coal to reduce dust and coal from being blown out of open railroad cars. 5 Star Electric to Order Call

5 Custom Designs Our reputation has been built on designing and manufacturing custom heaters for special applications. The experienced INDEECO support staff will evaluate your requirements and propose an efficient electric heating system for your unique application. few examples of INDEECO custom designs, including packaged systems with heater and controls, are described here. Fuel Gas Preheater: This 15 KW fuel gas preheater is used to raise the temperature of fuel gas above the dew point. The design rating is 00 psi at F. The heater has an explosionresistant terminal enclosure and thermocouple sensor junction boxes. Compressed ir Heater System: This skidmounted 0 KW compressed air heater system includes builton SCR controls, Incoloy elements and carbon steel tanks. These heaters are part of a jet engine testing system. Military Lube Oil Heater: These lubrication oil circulation heaters are used on U.S. Naval ships. This design exemplifies INDEECO s ability to manufacture special equipment in compliance with detailed specifications such as MILSPEC requirements which can include performance, shock and vibration tests. Fuel Oil Heater System: KW fuel oil heater which includes a builton Vernier control system. The low watt density requirements resulted in a foot long vessel design with immersion heaters inserted at each end. Star Electric to Order Call

6 Engineering Information Before selecting a standard circulation heater from the catalog listings shown on pages, or customizing a design with any of the options and accessories shown on pages 1417, check the engineering information to assure proper heater design and performance for your application. Calculating KW Requirements When calculating the power required to heat a material flowing through the circulation heater, the KW equation shown below can be applied. This equation is based on the criteria that there is no vaporization occurring in the heater. The KW equation incorporates a % safety factor, allowing for heat losses of the jacket and piping, variation in voltage and wattage tolerance of the elements. KW = M x T x Cp x S.F. 4 Where: KW = power in kilowatts M = flow rate in Lbs/Hr T = temperature rise in F (The difference between the minimum inlet temperature and maximum outlet temperature.) Cp = specific heat in BTU/Lb F S.F. = safety factor, = conversion of BTU to KWH Water Heating Example: pplication data: 8 GPM flow with an inlet temperature of 5 F and an outlet temperature of 5 F. First, convert the flow rate to Lbs/Hr. 8 Gal 1 Ft x x 0 Min = 4.17 Ft /Hr Min 7. Gal 1 Hr Obtain the specific heat (Cp) and density from Table III, page Ft /Hr x 2.4 Lbs/Ft = 4004 Lbs/H Now calculate KW: KW = KW = Lbs/Hr x (55) F x 1 BTU/Lbs F x Oil Heating Example: pplication data: SE 0 lubrication oil with a flow rate of 15 GPM, an inlet temperature of F and an outlet temperature of 55 F. First, convert the flow rate to Lbs/Hr. 15 Gal 1 Ft x x 0 Min = 108 Ft /Hr Min 7. Gal 1 Hr Obtain the specific heat (Cp) and density from Table III. 108 Ft /Hr x 55.4 Lbs/Ft = 0,000 Lbs/Hr Now calculate KW: KW = KW = 5 Gas Heating Example: pplication data: ir is flowing at 7 CFM and 5 PSIG pressure. The inlet temperature of the air is 0 F and the outlet temperature is 0 F. First, convert the flow rate to SCFM. PSI 50 R SCFM = CFM x x 14.7 PSI (T F+40 R) Where: T = Inlet temperature in F CFM = ctual cubic feet per minute (This is the actual volume flow rate value at inlet temperature and operating pressure, PSI.) SCFM = Standard cubic feet per minute (This is the volume flow rate value at F and atmospheric pressure, 14.7 PSI.) PSI = Pounds per square inch, absolute PSIG = Pounds per square inch, gauge PSI = PSIG (Note: If value is given as psi, it is implied to be PSIG.) 1.5 = SCFM 0,000 Lbs/Hr x (55) F x. BTU/Lbs F x CFM x 1.7 PSI 50 R x = SCFM 14.7 PSI (0 F+40 R) Now convert to Lbs/Hr. 1.5 SCFM x 0 Min x.07 Lbs = Lbs/Hr 1 Hr Ft Reference Table I for the density and specific heat (Cp) of air. 7 Star Electric to Order Call

7 Engineering Information (continued) Properties for Gases Table I KW = Gas ir Nitrogen Steam KW = 14. Density (Lbs/Ft ) Specific Heat (BTU/Lb F) Densities and specific heats are at atmospheric pressure (14.7 PSI) and F, except the temperature for steam is 2 F. Now calculate KW: (Specific heat of air at average temperature of 1 F is also..) Lbs/Hr x (00) F x 0. BTU/Lbs F x Pressure Drop Pressure drop through the heater is a function of many variables, including type of liquid or gas, flow rate, temperature and vessel size. Use the information on this page as a guideline for common applications where water, lube oil, fuel oil, or ethylene glycol are heated from 0 F. For other applications, including heating gases, contact INDEECO, and we will determine the pressure drop for you. The curves on Chart indicate the pressure drop for the different diameters of catalog listed heaters. The curves are based on water at 0 F, and the heaters having the standard inlet and outlet sizes as listed on page 10. Table II gives correction factors for Chart when these other liquids are being heated from 0 F. Pressure Drop Correction Factors Table II Example: Flow rate: 100 GPM Liquid: SE 0 lubrication oil Inlet Temperature: 0 F First, select the vessel size by determining the KW rating and watt density and referring to the oil heater listings on pages 222. For this example, we will select a 5" flange heater. From the water pressure drop curves, we get a 2 psi pressure drop, then we multiply that value by the correction factor for SE 0 lubrication oil. This gives a.2 psi pressure drop through the heater for this application. The viscosity of oil can change dramatically with a 0 F change in temperature. If your inlet temperature is different than 0 F, or the graphs indicate a pressure drop is too high for your system, please contact INDEECO. We can evaluate your exact requirements and offer alternatives to meet your needs. Chart Liquid SE 0 Lubrication Oil No. 2 Fuel Oil Ethylene Glycol (50% Solution) Correction Factor Star Electric to Order Call

8 Watt Density and Element Sheath Material Selection Selecting the proper watt density (watts per square inch of element surface area) and the proper sheath material is critical to heater life and fluid integrity. If the watt density is too high, the fluid may carbonize, break down chemically, or the elements may burn out. If the sheath material selection is incorrect, it will corrode, destroying the element. In general, watt density is determined by three factors: 1) maximum outlet temperature 2) type of fluid heated and ) fluid flow rate. Sheath material depends on the type of fluid and maximum temperature. The standard vessel material is carbon steel. stainless steel vessel may be required at higher temperatures or for better corrosion resistance. Table III gives watt densities and sheath material guidelines for a variety of liquids. The watt density and sheath material guidelines shown in this table should not be interpreted as a recommendation for all applications because there are many other factors that can affect the selection of the appropriate watt density or sheath material. Use this information as an initial guide along with knowledge of the actual conditions which exist in the heating application. Maximum Watt Densities, Sheath Materials and Properties for Liquids Table III Liquid Max. Fluid Temp. ( F) Max. Watt Density (W/In 2 ) Density (1) (Lbs/Ft ) Specific (1) Heat, Cp (BTU/ Lbs F) Sheath Materials Copper Steel Stainless Steel Incoloy Liquid Max. Fluid Temp. ( F) Max. Watt Density (W/In 2 ) Density (1) (Lbs/Ft ) Specific (1) Heat, Cp (BTU/ Lbs F) Sheath Materials Copper Steel Stainless Steel Incoloy cetic cid (2) lkaline Solutions sphalt Ethylene Glycol 50% Solution Fuel Oils No. 1* No. 2 No. 5 No. Heat Transfer Oils Caloria HT 4 Chemtherm 0 Dowtherm Dowtherm G Dowtherm HT Dowtherm J Dowtherm LF Hitec Marlotherm L Marlotherm S Mobiltherm 00 Mobiltherm 0 Mobiltherm 05 Mobiltherm Light Multitherm PG1 Multitherm IG2 * Kerosene B C B C Heat Transfer Oils Syltherm XLT Syltherm 0 Thermalane 00 Thermalane 0 Therminol 44 Therminol 55 Therminol 5 Therminol 0 Therminol Therminol 75 Therminol FR1 Therminol LT Therminol VP1 UCON 500 Machine or Lubrication Oils SE 10 SE SE 0 SE 40 SE 50 Vegetable Oil Water Process Deionized (2) (1) Densities and specific heats are at or near room temperature. (2) Stainless steel vessel may be required. B Rating legend: Good B Fair C Conditional, solution concentration and temperature will affect suitability. Star Electric to Order Call

9 Dimensional Drawings See pages for, B, M Dimensions Flange Size (Inches) 5 8 MNPT Standard Inlet/Outlet Nozzle Size (Inches) /2 Dimensions (Inches) C D F 71/ /2 2 1/8 2 7/8 7 NPT Drain Plug (Inches) /4 /4 1 See pages for, B, M Dimensions 10 Flange Size (Inches) lb. Flanged Standard Inlet/Outlet Nozzle Size (Inches) Dimensions (Inches) C D F / NPT Drain Plug (Inches) 1 11/2 11/2 Star Electric to Order Call

10 Mounting Options Star Electric to Order Call

11 Mechanical and Electrical Guidelines Temperature/Pressure Gauge Relief Valve Outlet Inlet When the piping system includes a fastacting valve or check valve, a customer supplied expansion chamber is recommended. dequate provision should be made for expansion and contraction of piping connected to the circulation heater. The standard circulation heater construction is not designed for wet or hazardous locations. For these applications, a moisture and/or explosionresistant construction, and a weatherproof insulation jacket, as described on page 15, are required. Electrical The standard circulation heater construction includes a factorymounted, single stage, Type D thermostat. This device is available in both two and threepole models which have the following load carrying capacities: Drain Valve Expansion Chamber Where Required Review the following mechanical and electrical guidelines to specify the best heater design to meet your installation and performance requirements. Mechanical and Plumbing INDEECO offers six mounting options as described on page 11. Be sure to specify the appropriate mounting configuration for your application. Consider how you will install the heater and make the plumbing and electrical connections. Leave room for the pull space required to remove the immersion heater from the vessel for inspection, cleaning or replacement. Verify that the standard circulation heater inlet/outlet location, size and type are appropriate for your installation. Special inlet/outlet variations are described on page 1. Circulation heaters are designed to heat a fluid or gas as it flows through the vessel. These units are not intended to be used as storage tanks. When a circulation heater is installed in a pressurized system, a relief valve must be installed in the outlet line. INDEECO can supply a pressure relief valve either builton or as a loose accessory for field installation, as described on page 17. Do not place a shutoff of any type between the pressure relief valve and the circulation heater or on the discharge pipes between the relief valve and the atmosphere. drain plug is furnished in each vessel for periodic sludge removal and maintenance. gate valve as described on page 17 should be specified if frequent draining is required. Table IV Voltage SinglePhase (KW) ThreePhase (KW) Heaters rated above these capacities require a magnetic contactor, with the pilot duty D thermostat controlling the contactor holding coil. INDEECO offers a convenient builton contactor option. See page 14. Figures 10 and 11 show typical wiring diagrams for both a load carrying thermostat and pilot duty thermostat with contactor either supplied by the customer in a remote panel, or builton to the heater by INDEECO. Note that one contactor is required for each heater stage when optional twostage thermostat is specified, page 14. Type D thermostat must always be mounted in a vertical plane, never "on its back", so be sure to specify the correct heater mounting configuration to assure the thermostat will be correctly oriented and factorymounted. INDEECO recommends some type of process overtemperature protection for all circulation heater systems. Options include: Builton Type EC thermostat, page 14. Builtin thermocouple for remote process overtemperature controller, page 15. Pump interlock, if a chance exists the heater could be energized with no flow, such as builtin or customer fieldinstalled flow switch or fieldinstalled pump interlock relay, page 17. Star Electric to Order Call

12 High limit protection can be provided to prevent element overheating and burnout due to low liquid level, inadequate flow, sludge buildup, etc. You should specify a builtin thermocouple for a remote high limit controller, page 15, or a low liquid level cutoff builtin or field installed, page 17. The size and type of incoming field wiring will depend on maximum outlet temperature, heater current draw, and number of heater stages. Contact INDEECO for help in selecting the appropriate wire size per current NEC guidelines. INDEECO heaters are designed and tested to provide +5%/10% KW at rated voltage. KW at other than rated voltage is calculated as follows: Figure 10 New KW = (New Voltage)2 x Rated KW (Rated Voltage) 2 Figure shows a circulation heater system wiring diagram with heater, pump and control panel which includes controlling thermostat, high limit protection, controlling contactor, pump motor starter interlock, flow switch with time delay relay, circuit fusing, transformer and power disconnect switch. INDEECO can provide a builton, skidmounted or remote control panel (See pages 22), or a complete packaged system including heater, controls and pump. Figure 11 Figure Star Electric to Order Call

13 Special Features Optional BuiltOn Thermostats and Contactors lternate Temperature Ranges for Standard Type D Thermostat 0100 F 0550 F 000 F Optional Type P Indicating and TwoStage Thermostats Stages 1 or 2 1 or 2 1 or 2 1 or 2 Process Temperature Ranges 1 F 50 0 F F F Tamperproof Thermostat Enclosure Type D thermostat is completely enclosed in a box with solid cover. Type EC Thermostat for Process Overtemperature Protection This fieldadjustable thermostat acts as an automatic reset cutout to protect against process overtemperature. The sensing bulb is factorymounted in the outlet area. Overtemperature Ranges: 00 F F No BuiltOn Thermostat builton thermostat is not required because process temperature is controlled by remote thermostat or control panels. BuiltOn Contactors Magnetic contactors, required for use with builton pilot duty thermostats, can be factorymounted on the circulation heater, eliminating the need for a remote contactor enclosure and the associated field wiring costs. 14 Star Electric to Order Call

14 BuiltIn Thermocouple/RTD builtin Type J or K sheathed thermocouple can be provided for three specific purposes: Process Temperature Control The thermocouple is factorymounted in the outlet area to sense temperature for the process controller. Process Overtemperature Protection The thermocouple is factorymounted in the outlet area to sense temperature for the process overtemperature controller, which prevents process liquid or gas overheating. Heater High Limit Protection The thermocouple is attached to the heating element to sense sheath temperature for the heater high limit controller. This prevents element overheating and burnout due to low liquid level, inadequate flow, sludge buildup, etc. Special Sensors INDEECO provides a wide range of special thermocouple, RTD and thermistor sensors to meet your temperature control requirements. Temperature Control Panels Control panels, designed and manufactured by INDEECO, offer a convenient, reliable means of completing the heater control package. Control panels containing all necessary components, such as contactors, fuses, transformer, disconnect switch, pilot lights and electronic controls are described in more detail on pages 22. INDEECO offers builton, skidmounted or remote temperature control panels with control components built into NEM 4, NEM 4X, NEM 7 and NEM enclosures. SME Code Stamp INDEECO has inhouse SME code welding capabilities. ll INDEECO circulation heaters are designed in accordance with SME standards. n SME code stamp is optional. SME Code IV VIII Stamp H U Description Low pressure water heater with working temperature at or below 0 F and working pressure at or below 10 psi. Unfired pressure vessel for all other liquids and gases. SME code places no restrictions on maximum working temperature or pressure. Moisture and/or ExplosionResistant Construction Recommended for applications where there is danger of moisture entering the terminal and thermostat enclosures (NEM 4 construction) or for hazardous locations classified by the National Electrical Code as Class I, Divisions 1 & 2, Groups B, C & D (NEM 7 construction). For all moisture and/or explosionresistant constructions, the externally mounted, builton Type D thermostat is replaced by a pilot duty, 00 F thermostat built into the terminal enclosure. Remote temperature control is required for temperatures above 0 F. Weatherproof Insulation Jacket sealed, galvanized steel construction is recommended for most outdoor installations. Stainless steel construction is also available for high temperature, very wet or corrosive applications. 15 Star Electric to Order Call

15 Special Features (continued) High Temperature Construction Features Extended Terminal Enclosure This terminal enclosure allows the use of 0 C rated incoming field wiring and epoxy element seals when the outlet temperature exceeds 400 F for gases or 0 F for liquids. Ceramic Fiber Vessel Insulation Ceramic fiber vessel insulation should be used when the outlet temperature exceeds 0 F. SpiralWound Gasket Spiralwound, Type 04 stainless steel gaskets are recommended for extremes in joint relaxation, temperature or pressure cycling, shock or vibration. Spiralwound gaskets are required when the outlet temperature exceeds 50 F for gases or 750 F for liquids. They are also recommended for fluids with low surface tension. Special Mounting Brackets and Jacket Support This option is required when the outlet temperature exceeds 400 F for gases or 0 F for liquids. One of the angle iron mounting brackets will have slotted holes and the vessel jacket will be supported in one location on a band. This allows for vessel expansion and contraction without heater damage. Inlet/Outlet Variations Special Inlet/Outlet Locations The following configurations are available: Inlet/Outlet positioned 0 apart. Inlet/Outlet both rotated 0 from standard position. Inlet/Outlet located on heater bottom. Special Ratings Three types of special ratings are available: Wattage Custom designed heaters with nonstandard kilowatt (KW) ratings and watt densities are available to meet your specific heating requirements. Special watt densities are often required for certain fluids and gases. See pages 7. Voltage ny voltage is available up to 00 volts including 1, 8, 277,, 400, 415, 440, 0 and 00 volt ratings for custom designed heaters. Pressure Custom designs are available for pressures above the standard 10 psi rating at 0 F. Special Materials Vessel and Flanges Special vessel and flange materials, including stainless steel, Incoloy and coppernickel alloys can be specified for custom designs. Heating Elements Copper, Incoloy, Inconel, Monel, steel, 04 and 1 stainless steel sheath materials are readily available for both catalog and custom designs. Consult factory for availability of other special sheath materials. Hermetic Terminal End Seals For applications where an absolute moisture seal is required. Each element is fitted with ceramictometal hermetic seals which are airtight. Vessel Sizes Custom vessel designs are available from 1" to over " to accommodate larger KW requirements. 1 Star Electric to Order Call

16 ccessories Specify BuiltIn or Loose for Field Installation Drain Valve gate valve is installed in the tank bottom. drain plug is furnished as standard when a valve is not specified. Pressure Relief Nozzle threaded nozzle can be built into the heater vessel for a customersupplied, fieldinstalled pressure relief valve. Pressure Relief Valve Sized for thermal relief, this valve is used to relieve excess pressure should unsafe conditions develop. Flow Switch This safety device prevents the heater from coming on unless the fluid is flowing. It requires field wiring to the control circuit. Pressure Gauge The standard range is 00 psi. Other pressure ranges are available. Thermometer This glass tube, liquidfilled thermometer is used to sense process outlet temperature. Pump Interlock Relay safety device which prevents the heater from coming on unless the pump starter is closed. This doublepole, singlethrow, normally open relay is field wired in parallel with the pump starter. Low Liquid Cutoff safety device used to disconnect the heater if the liquid drops below a safe level. The cutoff consists of two components: 1 stainless steel probe to sense liquid level and a pilot relay which deenergizes contactor holding coils. The heater automatically comes back on when the liquid level rises. Low liquid cutoffs are available for: Water and other conducting liquids Oil and other nonconducting liquids 17 Star Electric to Order Call

17 MultiPurpose Heater Listings The Series 52 ( W/In 2 ), 54 ( W/In 2 ) and 5 (50 W/In 2 ) INDEECO circulation heaters are designed for heating gases, water and oil. These high quality MultiPurpose Heaters include the following standard features: Incoloy sheathed.475" diameter heating elements Insulated steel vessel with a galvanized jacket NEM Type 1 terminal enclosure Builton thermostat, 00 F range Choice of mounting brackets or mounting pads Flange heaters have 150 lb. steel flanges which meet NSI B1.5 standards Rated 10 psi at 0 F Reference Dimensional Drawings on page 10. Specify Mounting Configuration per page 11. KW Number Of Elements 2 2 Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M 2 1/2" PIPE THRED CONSTRUCTION, INCOLOY ELEMENTS, W/IN J01* 40/8 2/2 221/2 55/8 75/8 520J01* 520K01* 520U01 40/8 2/2 221/2 55/8 75/8 5204J01* 77/ /8 51/8 520J01* 520K01* 520U01 77/ /8 51/8 " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 50J01* 50J01* 50K01* 50K01* 50U01 50U01 41/4 8/4 41/2 57 5" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 500J01* 50J0 500K01* 50K01 500U01 50U01 41/2 0 51/2 8" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 50J04 50K02 50U01 5/8 41/2 50K02 50U01 755/8 57/8 50K04 50U02 755/8 57/8 5054K0 5054U02 10/8 841/2 50K04 50U02 10/8 841/2 5402J01* 540J01* 5405J01* 540J01* " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 527N0K05 527N0U N100U N1U N15U " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 528N150U04 528N175U0 528N15U0 /2 1/2 1011/ /2" PIPE THRED CONSTRUCTION, INCOLOY ELEMENTS, W/IN K01* 540K01* 5405K01* 540K01* 540U U01 540U01 7/8 4/8 40/8 571/ /2 2/2 1/4 21/ /1 55/1 11/2 221/2 1/4 41/8 41/8 4/4 1/4 8/4 8/4 8/4 8/4 8/4 55/8 55/8 55/8 421/4 4/4 87/8 5/8 471/2 /4 /4 71/2 71/2 78/1 88/1 88/1 8/1 777/8 877/8 57/8 221/8 15/8 75/8 54/8 * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. Weight (Lbs.) Star Electric to Order Call

18 KW Number Of Elements Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN J01* 54004K01* 54004U01 41/4 221/2 11/2 41/8 01/4 5400J01* 5400K01* 5400U01 41/4 41/2 21/2 41/8 421/ J01* 54008K01* 54008U01 5/4 41/8 52/4 540J0 540K01* 540U01 7/ /8 75/ J0 5440J0 5440J0 50J01* 505J01* 50J01* 508J01* 50J01* 5" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN K K K K U U U U01 41/2 501/2 1/2 1/ " K01* LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 50K0 5054K0 50K0 50K08 50U U02 50U02 50U04 1/8 /8 8/8 8/8 47/8 501/2 71/2 71/2 10" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 54N0K05 54N00K05 54N100K10 54N1K10 54N140K10 54N0U05 54N00U05 54N100U05 54N1U05 54N140U " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 547N1U05 547N150U05 547N175U05 547N0U " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 21/2" PIPE THRED CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN 2 50K01* 505K01* 50K01* 508K01* 50K01* 505U01 50U01 508U01 50U01 211/4 211/4 4/8 4/8 4/8 /8 /8 221/2 221/2 221/2 " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN 2 500J01* 500J01* 50J0 5015J0 50J0 500K01* 500K01* 50K01* 5015K01 50K01 500U01 500U01 50U U01 50U01 41/4 41/4 41/4 5/4 5/4 221/2 221/2 41/2 5" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN 2 540J0 540K K02 540K0 5N0U08 5N00U08 5NU 540U U01 540U0 540U0 8" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN 2 550K0 550K08 550U02 550U04 55U U0 550U0 550U08 /2 1/2 1011/2 41/2 501/2 501/2 2 5/8 5/8 1/8 755/8 8/8 8/ /2 41/2 41/2 47/8 57/8 71/2 71/2 41/ /2 521/2 5/2 /2 71/2 11/2 11/2 11/2 11/2 11/2 21/ /1 55/ /4 8/4 8/4 8/4 8/4 10/4 10/4 10/4 10/4 10/4 55/8 55/8 55/8 41/8 41/8 41/8 41/8 41/8 4/4 14 8/4 8/4 8/4 8/4 8/4 8/4 87/8 7/8 77/8 77/8 01/4 1/2 1/2 1/2 715/8 755/8 5/8 15/8 5/8 8/1 78/1 88/1 8/1 777/8 877/8 57/8 1/2 1/2 15/8 15/8 15/8 01/4 01/4 421/4 52/4 52/4 87/8 7/8 7/8 57/8 471/2 471/2 01/4 /4 1/2 1/2 * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. Star Electric to Order Call Weight (Lbs.)

19 Stainless Steel Heater Listings The Series 50 ( W/In 2 ), 57 ( W/In 2 ) and 58 (50 W/In 2 ) INDEECO circulation heaters are designed for heating mildly corrosive liquids or pure water solutions. This design may also be used for heating gases or liquids to high temperatures with optional thermostat and high temperature construction described in the Special Features section. These high quality Stainless Steel Heaters include the following standard features: Incoloy sheathed.475" diameter heating elements Insulated 04 stainless steel vessel with a galvanized jacket NEM Type 1 terminal enclosure Builton thermostat, 00 F range Choice of mounting brackets or mounting pads Flange heaters have 150 lb. stainless steel flanges which meet NSI B1.5 standards Rated 10 psi at 0 F Optional 1 stainless steel construction Optional passivation Reference Dimensional Drawings on page 10. Specify Mounting Configuration per page 11. KW Number Of Elements Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN J01* 5000K01* 5000U01 41/4 41/2 21/2 41/8 421/4 5000J01* 5000K01* 5000U01 8/ /8 4/4 5" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN J01* 50400K01* 50400U01 41/2 0 4/4 87/8 5040J0 5040K U01 51/2 1/4 5/8 8" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN J K U01 5/8 41/2 1 8/4 471/2 5050K U01 755/8 57/8 55/1 8/4 /4 5050K U02 755/8 57/8 55/1 8/4 / K U02 10/8 841/2 8/4 71/2 5050K U02 10/8 841/2 8/4 71/2 " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 507N0K05 507N0U0 507N100U0 507N1U04 507N15U " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 508N150U04 508N175U0 508N15U0 /2 1/2 1011/ " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 504J01* 50J01* 508J01* 5J0 504K01* 50K01* 508K01* 5K01* 504U01 50U01 508U01 5U01 41/4 41/4 5/4 7/4 221/2 41/2 8 11/2 21/2 2 41/8 41/8 41/8 41/8 78/1 88/1 88/1 8/1 777/8 877/8 57/8 01/4 421/4 52/4 75/4 Weight (Lbs.) * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. Star Electric to Order Call

20 KW Number Of Elements Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M 5" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN J K U01 41/ J0 5740K U01 501/ J0 5740K U01 1/2 8 5J01* 55J01* 5J01* 58J01* 5J01* 5740K0 5740U01 1/2 8 8" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN K K0 5750K0 5750K U U U U04 1/8 /8 8/8 8/8 47/8 501/2 71/2 71/2 10" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 57N0K05 57N00K05 57N100K10 57N1K10 57N140K10 57N0U05 57N00U05 57N100U05 57N1U05 57N140U " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 577N1U05 577N150U05 577N175U05 577N0U " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, W/IN 2 578N0U08 578N00U08 578NU /2 1/2 1011/ /2" PIPE THRED CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN 2 5K01* 55K01* 5K01* 58K01* 5K01* 55U01 5U01 58U01 5U01 211/4 211/4 4/8 4/8 4/8 /8 /8 221/2 221/2 221/2 " 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN 2 50J01* 50J01* 5J0 515J0 5J0 50K01* 50K01* 5K01* 515K01 5K01 50U01 50U01 5U01 515U01 5U01 41/4 41/4 41/4 5/4 5/4 221/2 221/2 41/2 5" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN J0 5840K K K0 5840U U U0 5840U0 8" 150 LB. FLNGE CONSTRUCTION, INCOLOY ELEMENTS, 50 W/IN K0 5850K U U04 585U U0 5850U0 5850U08 41/2 501/2 501/2 2 5/8 5/8 1/8 755/8 8/8 8/ /2 41/2 41/2 47/8 57/8 71/2 71/2 41/ /2 521/2 5/2 /2 71/2 11/2 11/2 11/2 11/2 11/2 11/2 21/ /1 55/ /4 8/4 8/4 8/4 8/4 10/4 10/4 10/4 10/4 10/4 55/8 55/8 55/8 41/8 41/8 41/8 41/8 41/8 4/4 14 8/4 8/4 8/4 8/4 8/4 8/4 87/8 7/8 77/8 77/8 01/4 1/2 1/2 1/2 715/8 755/8 5/8 15/8 5/8 8/1 78/1 88/1 8/1 777/8 877/8 57/8 1/2 1/2 15/8 15/8 15/8 01/4 01/4 421/4 52/4 52/4 87/8 7/8 7/8 57/8 471/2 471/2 01/4 /4 1/2 1/2 Weight (Lbs.) * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. Star Electric to Order Call

21 Oil Heater Listings The Series 51 ( W/In 2 ) and 5 ( W/In 2 ) INDEECO circulation heaters are designed for heating oil. These high quality Oil Heaters include the following standard features: Steel sheathed.475" diameter heating elements Insulated steel vessel with a galvanized jacket NEM Type 1 terminal enclosure Builton thermostat, 00 F range Choice of mounting brackets or mounting pads Flange heaters have 150 lb. steel flanges which meet NSI B1.5 standards Rated 10 psi at 0 F Reference Dimensional Drawings on page 10. Specify Mounting Configuration per page 11. KW Number Of Elements Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M 21/2" PIPE THRED CONSTRUCTION, STEEL ELEMENTS, W/IN 2 5N002J01* 5N002K01* 4/8 221/2 11/2 55/8 15/8 5N00J01* 5N00K01* 5N00U01 40/8 2/2 221/2 55/8 75/8 5N004J01* 5N004K01* 5N004U01 571/8 1/4 1/4 55/8 54/8 5N00J01* 5N00K01* 5N00U01 77/ /8 51/8 " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 51N00J01* 51N00J01* 51N00K01* 51N00K01* 51N00U01 51N00U01 41/4 8/4 41/2 57 5" 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 514N00J01* 514N0J0 514N00K01* 514N0K01 514N00U01 514N0U01 41/2 0 51/2 500J01* 8" K01* LB. FLNGE CONSTRUCTION, 500U01 STEEL ELEMENTS, /2 0 W/IN 2 515N0J04 515N0K02 515N0K02 515N0K04 515N054K0 515N0K04 515N0U01 515N0U01 515N0U02 515N054U02 515N0U02 5/8 755/8 755/8 10/8 10/8 41/2 57/8 57/8 841/2 841/2 " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 517N0K05 517N0U0 517N100U0 517N1U04 517N15U " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 5N150U04 5N175U0 5N15U0 /2 1/2 1011/ / /1 55/1 41/8 41/8 4/4 1/4 4/4 8/4 8/4 8/4 8/4 8/4 421/4 4/4 87/8 5/8 87/8 471/2 /4 /4 71/2 71/2 78/1 88/1 88/1 8/1 777/8 877/8 57/8 Weight (Lbs.) * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. 22 Star Electric to Order Call

22 KW Number Of Elements Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M 2 1/2" PIPE THRED CONSTRUCTION, STEEL ELEMENTS, W/IN 2 52N002J01* 52N002K01* 7/ /8 52N00J01* 52N00K01* 52N00U01 4/8 221/2 11/2 55/8 15/8 52N005J01* 52N005K01* 52N005U01 40/8 2/2 221/2 55/8 75/8 52N00J01* 52N00K01* 52N00U01 571/8 1/4 1/4 55/8 54/8 " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 5N004J01* 5N00J01* 5N008J01* 5N0J0 5N004K01* 5N00K01* 5N008K01* 5N0K01* 5N004U01 5N00U01 5N008U01 5N0U01 41/4 41/4 5/4 7/4 221/2 41/2 8 54N014J0 54N0J0 54N0J0 5" 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 54N014K01 54N0K01 54N0K02 54N0K0 54N014U01 54N0U01 54N0U01 54N0U01 41/2 501/2 1/2 1/ " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 55N0K0 55N054K0 55N0K0 55N0K08 55N0U02 55N054U02 55N0U02 55N0U04 1/8 /8 8/8 8/8 47/8 501/2 71/2 71/2 10" 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 5N0K05 5N00K05 5N100K10 5N1K10 5N140K10 5N0U05 5N00U05 5N100U05 5N1U05 5N140U " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 57N1U05 57N150U05 57N175U05 57N0U " 150 LB. FLNGE CONSTRUCTION, STEEL ELEMENTS, W/IN 2 58N0U08 58N00U08 58NU /2 1/2 1011/ /2 21/2 2 41/ /2 521/2 5/2 /2 71/2 41/8 41/8 41/8 41/8 4/4 8/4 8/4 8/4 8/4 10/4 10/4 10/4 10/4 10/4 01/4 421/4 5/4 75/4 87/8 7/8 77/8 77/8 01/4 1/2 1/2 1/2 715/8 755/8 5/8 15/8 5/8 /1 78/1 88/1 8/1 777/8 877/8 57/8 * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. Weight (Lbs.) Star Electric to Order Call

23 Water Heater Listings The Series 55 (50 W/In 2 ) INDEECO circulation heaters are designed for heating water. These high quality Water Heaters include the following standard features: Copper sheathed.475" diameter heating elements Insulated steel vessel with a galvanized jacket NEM Type 1 terminal enclosure Builton thermostat, 00 F range Choice of mounting brackets or mounting pads Flange heaters have 150 lb. steel flanges which meet NSI B1.5 standards Rated 10 psi at 0 F Reference Dimensional Drawings on page 10. Specify Mounting Configuration per page 11. KW Number Of Elements 42 Catalog Number** Dimensions (Inches) 0V/1 Phase 0V/ Phase 0V/ Phase B MC FC M 21/2" PIPE THRED CONSTRUCTION, COPPER ELEMENTS, 50 W/IN 2 552N00J01* 552N00K01* 211/4 /8 1/2 552N005J01* 552N005K01* 552N005U01 211/4 /8 1/2 552N00J01* 552N00K01* 552N00U01 4/8 221/2 11/2 55/8 15/8 552N008J01* 552N008K01* 552N008U01 4/8 221/2 11/2 55/8 15/8 552N00J01* 552N00K01* 552N00U01 4/8 221/2 11/2 55/8 15/8 " 150 LB. FLNGE CONSTRUCTION, COPPER ELEMENTS, 50 W/IN 2 55N00J01* 55N00J01* 55N0J0 55N015J0 55N0J0 55N00K01* 55N00K01* 55N0K01* 55N015K01 55N0K01 55N00U01 55N00U01 55N0U01 55N015U01 55N0U01 41/4 41/4 41/4 5/4 5/4 221/2 221/2 41/2 5" 150 LB. FLNGE CONSTRUCTION, COPPER ELEMENTS, 50 W/IN 2 554N0J0 554N0K02 554N00K02 554N0K0 554N0U01 554N00U01 554N0U0 554N0U0 8" 150 LB. FLNGE CONSTRUCTION, COPPER ELEMENTS, 50 W/IN 2 555N0K0 555N0K08 555N0U02 555N0U04 555NU0 555N144U0 555N0U0 555N0U08 " 150 LB. FLNGE CONSTRUCTION, COPPER ELEMENTS, 50 W/IN 2 557N0U07 557N00U08 557N50U1 557N400U1 557N0U1 557N500U " 150 LB. FLNGE CONSTRUCTION, COPPER ELEMENTS, 50 W/IN 2 558N500U 558N00U 558N0U 558N0U 41/2 501/2 501/2 2 5/8 5/8 1/8 755/8 8/8 8/8 71/2 /2 1/2 1011/ /2 41/2 41/2 47/8 57/8 71/2 71/ /2 11/2 21/ /1 55/ /8 41/8 41/8 41/8 41/8 4/4 14 8/4 8/4 8/4 8/4 8/4 8/4 01/4 01/4 421/4 52/4 52/4 87/8 7/8 7/8 57/8 471/2 471/2 01/4 /4 1/2 1/2 58/1 8/1 78/1 78/1 78/1 88/1 77/8 777/8 877/8 57/8 * Indicates factory wired, builton load carrying thermostat. ll other builton thermostats are pilot duty only. Last two digits of catalog number indicate number of heater circuits. ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. Star Electric to Order Call Weight (Lbs.)

24 MiniBooster Compact Water Heaters These compact, lightweight, easy to install heaters can be used for many commercial or light industrial water heating applications. The high quality MiniBooster Water Heater includes the following standard features: 11/4" pipe thread immersion heater with integral load carrying 0 to 0 F thermostat Insulated galvanized steel pipe vessel with painted steel jacket Two." diameter copper elements rated at W/In 2 NEM Type 1 terminal enclosure No mounting brackets required Dual voltage design allows for operation with 1V or 0V power supply KW Catalog Number** 1V/1 Phase or 0V/1 Phase 51S01.5X01 51S02.0X01 51S02.5X01 51S0.0X01 Dimensions (Inches) B 17/8 17/8 27/8 27/8 /8 /8 1/8 1/8 Weight (Lbs.) ** If any special features are added to a standard heater, the part number will change to a 50Series number. This part number is assigned after an order is placed. How to Order Standard Heater Construction Specify: Catalog number pages Mounting configuration page 11 Custom Designs Required pplication Information: Fluid or gas to be heated Required temperature rise ( T) F through the heater Maximum outlet temperature Flow rates (minimum and maximum) Maximum design pressure Maximum allowable pressure drop through the heater Heater environment (hazardous, corrosive, weatherproof, etc.) Temperature control requirements Specify:* KW Voltage and phase Nominal heater/vessel configuration (21/2" pipe thread; ", 5", 8", 10" or larger flange size) Maximum vessel design pressure (standard design based on 10 psi rating at 0 F, with 150 lb. flange standard) SME code stamp required (none, IV or VIII) Vessel material (steel, stainless, other) Element sheath material (Incoloy, steel, copper, stainless, other) Element watt density (W/In 2 ) Inlet/outlet connection (NPT or flanged) Mounting configuration page 11 Method of temperature/power control Special features pages 1417 *INDEECO can help determine custom design specifications or may advise a better choice to reduce cost and delivery time. Star Electric to Order Call