Indirect-Fired Storage Water Heater - Slant/Fin

1 WARNING TO THE USER: Keep temperature control on Heater at lowestsetting which is satisfactory. Always adjust Water temperature from taps by start-ing with a cool mix of Water and gradually bring towarmer temperature. Never leave children, elderly or disadvantaged per-sons unattended where hot Water taps are - HOT Water CAN SCALD!Read all of the following important warnings to avoidthe possibility of personal injury, death, or TO THE INSTALLER ANDSERVICEPERSONS: Keep temperature control on Heater at lowest settingwhich is satisfactory. Installation of a temperature and pressure relief valveof the proper rating for the Heater tank size isrequired. Install a tempering device, such as a mixing valve, onhot Water piping which feeds areas where hightemperature Water is not demanded. When servicing this installation, make sure drain con-nections are tight and drain hose is directed away fromall persons or areas where injury or damage can Safety.

2 2II Product Selection ..3 III Performance Iinstallation/Piping ..5-8V Wiring ..9-13VI Maintenance ..14 VII Warranty ..15-16 Indirect-Fired Storage Water HeaterModels HWT-40, HWT-60, HWT-80, HWT-120 INSTALLATION AND OPERATING INSTRUCTIONSP ublication revAPart No. 66-4001 Heater Package includes: Fully insulated oven glazed titanium glass lined tankwith temperature control well installed. Temperature control adjustable up to 145 SAFETYThe warranty on this Water Heater is in effect only when thewater Heater is installed and operated in accordance withthese instructions. The manufacturer of this Water Heater willnot be liable for any injury or property damage resultingfrom failure to comply with these !This Water Heater must be installed strictly inaccordance with the instructions enclosed, and local electri-cal, fuel and building codes. It is possible that connections tothe Water Heater , or the Water Heater itself may developleaks.

3 IT IS THEREFORE IMPERATIVE that the waterheater be installed so that any leakage of the tank or relatedwater piping is directed to an adequate drain in such a waythat it cannot damage the building, furniture, carpeting, adja-cent areas, lower floors of the structure or other propertysubject to Water damage. This is particularly important if thewater Heater is installed in a multi-story building, on finishedflooring or carpeted surfaces. Slant/Fin CORP. CANNOTBE HELD LIABLE for damage caused by Water from thewater Heater , pressure relief valve, or related fittings. Closetswithout drains and carpeted areas are examples of unsuit-able locations for any Water Heater . Select a location as cen-tralized within the piping system as possible. The heatershould be located in an area not subject to freezing temper-atures at any time. It is recommended that a suitable drainpan be installed under the Water Heater . This pan shall be aminimum of 50mm (2 in.)

4 Deep and have a diameter that isa minimum of 50mm (2 in.) greater than the diameter of thewater Heater . Suitable piping shall connect the drain pan toa properly operating floor Valve RequirementsCaution:To reduce the risk of excessive pressures andtemperatures in this Water Heater , install temperatureand pressure protective equipment required by localcodes. It should be no less than a combination temperatureand pressure relief valve certified by a nationallyrecognized testing laboratory that maintains periodicinspection of production of listed equipment or materials,as meeting the latest edition of ANSI :Requirements for Relief Valves and Automatic GasShut-off Devices for Hot Water Supply Systems. Thisvalve must be marked with a maximum set pressure notto exceed the marked MAXIMUM working pressure of thewater Heater (150 PSI). Install the valve into an openingprovided and marked for this purpose in the waterheater, and orient it or provide tubing so that anydischarge from the valve will exit only within 6 inchesabove, or any distance below the structural floor andcannot contact any live electrical part.

5 The dischargeopening must not be blocked or reduced in size underany circumstances. The end of the relief pipe openingshould terminate near a floor drain or other suitablelocation not subject to blocking or freezing. DO NOTthread, plug or cap the relief pipe fired Water TANK Water temperatures over 125 F can cause severe burns instantly,or death from scalds. Children, disabled, and elderly are at the highest risk of being scalded. See instruction manual before setting temperature at Water Heater . Feel Water before bathing or showering. Temperature limiting valves are available, see Indirect-Fired Water Heater is deemed to be used in a "commercial setting" if at any time the unit is oper-ated at a temperature over 150 F. Refer to warranty for additional !r!HOTBURN3 indirect fired Water TANKb. Estimate unusual peak draw demand. Whirlpool baths, hot tubs, and mutltiple head showers require largequantities of hot Water in a short period of time.

6 Contact fixture manufacturer for quantity of Water speaking, these circumstances can only be met with larger Storage Domestic Water residential usage will be satisfied with 119 F Water , the temperaturesetting recommended by the Consumer Product Safety Commission. Some applications such as laundry anddishwashers may require a higher can be improved by increasing thermostat setting and using a mixing valve to temper the hot Water tothe proper temperature. When temperatures greater than 119 F are required, use a mixing valve at the outlet ofthe Water Heater or anti-scald fittings at point of PRODUCT SELECTION / PERFORMANCE1. The following guidelines apply to residential systems only. For commercial or institutional installations contact thefactory directly for Determine the quantity of domestic hot Water required. Factors to consider:a. Estimate typical peak hour the general time of day (morning, noon, evening) when the most hot Water is used.

7 Use chart below to determine potential maximum of Peak Domestic Hot Water UsageShower20x_____=x_____Bath20x _____=x_____Shaving2x _____=x_____Hands and Face Washing4x_____=x_____Hair Shampoo4x _____=x_____Hand Dish Washing4x _____=x_____Automatic Dish Washing14x _____=x_____Food Preparation5x_____=x_____Wringer Clothes Washer26x _____=x_____Automatic Clothes Washer32x _____=x_____Total Peak Hour Demand=_____Average Gallons ofUse Hot Water per UsageUseTimes Used DuringOne HourTimes Used DuringOne HourHWT-40 HWT-60 HWT-80 HWT-120 CAPACITY (Gallons)405579119 HEAT EXCHANGER SURFACE AREA FLOW RATE GPM (Boiler Water )10101414 PRESSURE DROP FT. HD. (Heat Exchanger) HR. RATINGS GPH 90 DEGREE RISE188225295376 CONTINUOUS FLOW GPH 90 DEGREE RISE160187240293 FIRST HR. RATINGS GPH 70 DEGREE RISE233277363460 CONTINUOUS FLOW GPH 70 DEGREE RISE205239308377 BOILER SIZE BTU'S REQUIRED120,000140,000180,000220,000 PERFORMANCE RATINGSNOTE: ABOVE RATINGS BASED ON BOILER MAINTAINING TEMPERATURE OF 180 DEGREES fired Water TANKIII TANK SPECIFICATIONSABCDEGFA-TANK TOP B-DOMESTIC HOT Water OUTLET C-RECIRCULATION(HWT-80) D-BOILER Water INLET(SUPPLY) E-CONTROLF-DOMESTIC COLD Water INLET G-BOILER Water OUTLET(RETURN) KEYTANK JACKET INSULATIONTEMP.

8 & PRESS. RELIEF VALVEMODELS: HWT-40, HWT-60, TANKVOLUME(Gallons)HEIGHT TO CONNECTION (Inches)COILSURFACE(Sq. Ft.)WEIGHT (Lbs.)ABCDEFGNETSHIPPINGFILLEDHWT-40 HWT-60 HWT-80 HWT-12020"20"22"28"40557911945587168N/A* N/A*61-1/468N/AN/A47-7/848-7/16353554-5/ 842202040-1/433-7/810-7/1610-7/1610-7/81 38-7/88-7/810-1/48-7/8141426261161182323 331241432433554495767371324 PHYSICAL SPECIFICATIONSCONNECTIONSNOTES:1. All fittings are female NPT thread connections, except for domestic hot and cold on the HWT-120 supplied with adapter to increase from 1" male to 1-1/4" female, for domestic hot and HWT-120 has inspection port (with access near bottom of tank for removal of any sediment buildup).DESCRIPTIONMODELHWT-40 HWT-60 HWT-80 HWT-120 TEMP. & PRESS. RELIEF VALVEDOMESTIC HOT Water OUTLETDOMESTIC COLD Water INLETBOILER Water OUTLET (RETURN)CONTROLBOILER Water INLET (SUPPLY)RECIRCULATON (HWT-803/4"3/4"3/4"1"1/2"1" 3/4"3/4"3/4"1"1/2"1" 1"1"1"1"1/2"1"3/4"1"1" MPT1" MPT1"1/2"1"3/4"* On HWT-40 and HWT-60, domestic hot Water outlet is on center top of fired Water TANKIV INSTALLATION/PIPINGThe Location of the the Heater so that there is easy access to the control,piping, valves, drain and Heater for future servicing and main-tenance.)

9 The Heater is to be kept in an area where it is notexposed to freezing , the Heater must be located in an area where a leak(eg. from the piping or fittings, from any temperature andrelief valve discharge, or from the tank itself), will not causepersonal harm or damage the surrounding area. The tankshould be installed in an area with a floor drain or in a pansuitable for Water will not be held liable for any damages caused bywater floor or area where the tank is installed must becapable of supporting the tank when filled with Water .(Refer to Table at right.)Read the Installation and Operating Instructions manualthoroughly. Follow recommended piping and wiring completing installation, fill the tank with Water . Whilefilling it leave a hot Water faucet open until a steady stream ofwater is flowing. Then, shut the faucet and check for any leaksthoughout the entire (lbs.)

10 HWT-40 HWT-60 HWT-80 HWT-1204495767371324 TANK WEIGHT WHEN FILLEDFOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other on this appliance could ignite vapors causing an explosionPIPING1. Generala. All plumbing must be in accordance withthe requirements of the authority Use both thread tape and pipe dope on allmechanical Zone valve (if used) and circulator must besized to provide minimum flow rate specifiedin the table to the right, Flow 1 inch nominal copper tubing betweenboiler and heat exchanger. See the tables onFriction Loss. Point of emphasis: using azone valve without a full bore may causehigh pressure drop which will adverselyaffect performance. Use extreme care whenselecting zone All piping must be adequately Allow for thermal Dielectric Unions (recommended)-used toelectrically isolate the tank from the connect-ed domestic Water piping.