SINGLE-WALL INDIRECT N LY WATER HEATER EF ER EN C E O A Spanish language version of these instructions is available by contacting the manufacturer listed on the rating plate. La version espanola de estas instruccions se puede obtener al escribirle a la fábrica cuyo nombre aparece in la placa de especificaciones. WARNING q Do not store or use gasoline or other flammable liquids in the vicinity of this water heater or any other appliance.
IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY For your family’s comfort, safety, and convenience, we recommend this water heater be installed and serviced by a plumbing professional.
N LY CONGRATULATIONS! O You have just purchased one of the finest water heaters on the market today! EF ER EN C E This installation, operation, and instruction manual will explain in detail the installation and maintenance of your new indirect water heater. We strongly recommend that you contact a plumbing professional for the installation of this water heater.
SECTION I IMPORTANT INFORMATION -READ CAREFULLY- N LY The equipment must be installed in accordance with those installation regulations required in the area where the installation is to be made. These regulations must be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made.
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DANGER DO NOT store or use gasoline or other flammable, combustible, or corrosive vapors and/or liquids in the vicinity of this or any other appliance. R EF ER EN C E O N LY IF YOU SMELL GAS: q DO NOT try to light any appliance. q DO NOT touch any electric switch; do not use any telephone in your building. q Immediately call your gas supplier from a telephone in another building. Follow the gas supplier’s instructions.
WARNING N LY Installation is not complete unless a pressure and temperature relief valve is installed into the side of the water heater. See the Water Connections section of this manual for details. FO R R EF ER EN C E O This water heater contains very hot water under high pressure. Do not unscrew any pipe fittings or attempt to disconnect any components of this water heater without positively assuring the water is cool and has no pressure.
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WARNING It is the responsibility of the installing contractor to see that all controls are correctly installed and are operating properly when the installation is complete. ER EN C E O DO NOT tamper with or alter the water heater and/or controls. N LY DO NOT operate the water heater with jumpered or absent controls or safety devices. R EF DO NOT operate the water heater if any external part has been under water.
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CAUTION ER EN C E NOTICE O N LY The maximum boiler water supply temperature to the indirect heat exchanger must not exceed 240°F (116°C). EF Insulation blankets are not required for this water heater. This water heater meets or exceeds the ASHRAE/IES 90.1b standards with re spect to insulation and standby loss requirements. R R TABLE OF CONTENTS IN TE R N ET VE R SI O N FO I- IMPORTANT INFORMATION…………….….. II- SPECIFICATIONS……………………………… . III- GENERAL INFORMATION…………………….
SECTION II Figure 1 – Tank Layout ET VE R SI O N FO R R EF ER EN C E O N LY SPECIFICATIONS N Table 1: Water Heater Dimension (Inches) A B C D E F SW-2-30-L 22 33-5/8 24 36 SW-2-50-L 26 36 SW-2-65-L 22 59-1/4 343/8 363/4 363/4 60 5-3/8 SW-2-40-L SW-65C-5 22 59-1/4 281/4 293/4 293/4 531/8 53- 60 5-3/8 271/2 271/2 271/2 271/2 47- IN TE R MODEL 13 5-3/8 5-3/8 5-3/8
24 59 SW-80C-5 24 59 SW-2-120-L 281/4 281/4 62-1/2 62-1/2 593/4 593/4 631/4 631/4 3/4 271/2 473/4 281/2 483/4 5-3/8 5-3/8 6-3/8 6-3/8 IN TE R N ET VE R SI O N FO R R EF ER EN C E O SW-120C-5 1/8 527/8 527/8 553/4 553/4 N LY SW-2-80-L 14
Table 2: Water Heater Capacities Dry Weight (Lbs) Wet Weight (Lbs) 30 40 50 60 58 75 73 116 114 2.6 2.6 2.6 2.6 5.0 2.6 5.0 2.6 5.
Table 4: Water Heater Performance (continued) Pressure Drop at 12 GPM (Feet of Head) 5.5 7.5 9.0 11.0 10.5 13.5 13.2 20.8 20.6 14.2 14.2 14.2 14.2 27.2 14.2 27.2 14.2 27.2 1.3 1.3 1.3 1.3 2.6 1.3 2.6 1.3 2.
IN TE R ET N VE R N SI O R FO ER EN C E EF R N LY O compliance with the code.
SECTION III GENERAL INFORMATION FEATURES This water heater contains the following features: N LY HEAT EXCHANGER -- The heat exchanger (coil) has 1” NPT female fittings. EF R R ET • FO • N • SI O • The boiler water (including additives) is practically non-toxic, having toxicity rating of class of 1 as listed in Clinical Toxicology of Commercial Products. The boiler water pressure is limited to maximum 30 psig by approved relief valve.
IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY Setting the water heater temperature at 120°F will reduce the risk of scalds. Some states require settings to specific lower temperatures.
TEMPERATURE AND PRESSURE RELIEF VALVE— WARNING IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY Keep clear of the combination temperature and pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash.
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WARNING EF ER EN C E O N LY Install a discharge line so that water discharged from the temperature and pressure relie f valve will exit within six (6) inches above, or any distance below, the structural floor and cannot contact any live electrical part. The discharge line is to be installed to allow for complete drainage of both the temperature and pressure relief valve and the discharge line. The discharge opening must not be subjected to blockage or freezing.
SECTION IV PRE-INSTALLATION UNPACKING ER EN C E O N LY INSPECT SHIPMENT carefully for any signs of damage. If damage is noted, do not install the product. Contact the shipper or manufacturer listed on rating plate. All equipment is carefully manufactured, inspected, and packed. Our responsibility ceases upon delivery of the packaged heater to the carrier in good condition. NOTE: Any claims for damage or shortage in shipment must be filed immediately against the carrier by the consignee.
NOTICE ER EN C E O Increasing the boiler DOE heating capacity above the values listed in Table 3 will not increase the rating of the water heater. N LY Answer: New Rating = 297 gal/hr x (180,000 BTU/h)/(220,000 BTU/h) = 297 gal/hr x 0.818 = 243 gal/hr R EF Ratings are based on 200°F boiler water. If 180°F boiler water is supplied, First Hour and Continuous Draw ratings will be reduced by approximately 27%. Select a circulator that will provide an appropriate flow rate at the combined pressure drop.
IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY heater in use. For this reason, the preferred method of zone control is with circulators.
2. O 3. Circulators – With space heating zones using circulators, the Single-wall Indirect should be added as an additional zone with a circulator. Zone Valves – Select a valve with a low-pressure drop to assure adequate flow through the water heater. Hybrid – The space heating zone can be zoned using zone valves and the Single-wall Indirect zoned with a circulator. N LY 1.
Component Location CAUTION R EF ER EN C E O N LY This water heater must be located in an area where leakage of the tank, water line connections, or the temperature and pressure relief valve will not result in damage to the area adjacent to the water heater or to lower floors of the structure. When such locations cannot be avoided, a suitable drain pan must be installed under the water heater.
Appliance Location N LY 1. Boiler Location – Locate the Single-wall Indirect as close to the boiler as practical. 2. Fixture Locations – For fastest delivery of hot water, place the Single-wall Indirect close to points of use. Additional Recommended Components SI O N FO R R EF ER EN C E O 1. Shut-off Valves – Allows isolation of water heater from domestic water system and/or boiler system during service. 2.
SECTION V WATER CONNECTIONS WARNING ER EN C E O N LY FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED TEMPERATURE AND PRESSURE RELIEF VALVE WILL RELEASE THE MANUFACTURER FROM ANY CLAIM WHICH MIGHT RESULT FROM EXCESSIVE TEMPERATURE AND PRESSURES. SI O N FO R R EF Hydrogen gas can be produced in an operating water heater that has not had water drawn from the tank for a long period of time. HYDROGEN GAS IS EXTREMELY FLAMMABLE.
INSTALL TEMPERATURE AND PRESSURE RELIEF VALVE (if not factory installed) WARNING N LY Temperature and pressure relief valve discharge piping must be piped near the floor to eliminate potential of severe burns. Do not pipe in any area where freezing could occur. Do not install any shut-off valves, plugs or caps to the temperature and pressure relief valve or piping. O INSTRUCTIONS FOR POTABLE CONNECTIONS IN TE R N ET VE R SI O N FO R R EF ER EN C E 1.
streams of water flow through the faucets, close them and check all water connections for possible leaks. 4. NEVER OPERATE THE WATER HEATER WITHOUT FIRST BEING CERTAIN THAT IT IS FILLED WITH WATER. N LY INSTRUCTIONS FOR BOILER CONNECTIONS FO R R EF ER EN C E O The Single-wall Indirect connection labeled “To Boiler Return” should be piped to the boiler return piping as close to the boiler as possible and especially after any flow control or check valves in the space heating return piping.
N LY O ER EN C E Figure 2 - Water Boiler Piping with Zone Valves IN TE R N ET VE R SI O N FO R R EF 2. For a space heating system that utilizes CIRCULATORS, refer to Figure 3. The Single-wall Indirect connection labeled “FROM BOILER SUPPLY” should be piped to the boiler supply piping. Mount the circulator making sure the flow arrow points toward the water heater. The use of shut-off valves and unions are recommended for future service convenience.
FO R R EF ER EN C E O N LY CONNECT STEAM BOILER SUPPLY PIPING Figure 4 represents a typical steam boiler connection diagram. Refer to the boiler installation manual or contact the boiler manufacturer for an appropriate piping diagram. The use of a union, shut-off valves, and a drain valve is recommended for future service convenience. The use of an in-line “Y”-style strainer is required to prevent accumulation of sludge in the water heater’s coil.
SECTION VI ELECTRICAL CONNECTIONS N LY Install electric wiring in accordance with National Electric Code or the Canadian Electrical Code and local regulations. See the boiler’s installation manual for wiring diagrams. DANGER EF ER EN C E O Positively assure all electrical connections are unpowered before attempting installation or service of electrical components or connections of the water heater or building. Lock out all electrical boxes with padlock once power is turned off.
IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY made to not rotate this dial while wiring the control.
FO R R EF ER EN C E O N LY complete, secure the aquastat cover back in place. AT NO TIME SHOULD WATER HEATER OPERATION TAKE PLACE WITHOUT THE COVER ON THE CONTROL.
SECTION VII OPERATING INSTRUCTIONS WARNING EF ER EN C E O N LY Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against the water heater, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater. UNDER NO CIRCUMSTANCES SHALL FLAMMABLE MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THE WATER HEATER OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER.
WATER TEMPERATURE ADJUSTMENT 1. The aquastat controls the maximum water temperature in the tank. The differential is a fixed 5°F with a 160°F maximum setting, set at the factory to 120°F. WARNING N LY SCALDING N FO R R EF ER EN C E O This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury.
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SI O N FO R R EF ER EN C E O N LY 2. For the most energy efficient operation, adjust the aquastat for the minimum water temperature necessary to meet domestic hot water needs. Refer to Figure 7. Use a small flat screwdriver to rotate the temperature dial through the hole directly below the temperature indication window. The temperature setting is aligned with the notch in this window. IT IS NOT NECESSARY TO REMOVE THE COVER TO ADJUST THE TEMPERATURE SETTING.
IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY sufficient water or allow the water heater to sit until a heat-up cycle is initiated. Repeat step 3.
SECTION VIII MAINTENANCE IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY The Single-wall Indirect is intended to provide a service life of many years. Components that require service, however, may be subject to failure. Failure to use the correct procedures or parts in these circumstances may make the water heater unsafe. The owner should arrange to have the following inspections and simple maintenance procedure performed by qualified service personnel at the frequencies suggested. 1.
IN TE R N ET VE R SI O N FO R R EF ER EN C E O N LY If the temperature–pressure relief valve on the heater discharges periodically or continuously, it may be due to thermal expansion of water in a closed water supply system, or it may be due to a faulty relief valve. Thermal expansion is the normal response of water when it is heated. In a closed system, thermal expansion will cause the system pressure to build until the relief valve actuation pressure is equaled.
ET VE R SI O N FO 4. R R EF ER EN C E O N LY discharge in an area where any remaining hot water will not cause any damage or injury. b. Open the drain valve to flush any sediment out of the bottom to the heater. c. Shut off the cold water supply. Make sure all hot water fixtures and circulating pumps are turned off. d. Wait for water flow from the hose to stop. Remove the anode using a socket of the appropriate size. Do not use an impact wrench. e. Inspect and replace the anode as required.
SECTION IX TROUBLE SHOOTING GUIDE PROBLEM CAUSE No hot water at faucet Boiler does not operate SOLUTION TE R N ET VE R SI O N FO R R EF ER EN C E O N LY Refer to boiler installation instructions Check main service switch Check fused disconnect Circulator does not Check power supply operate Replace as necessary Improper aquastat Turn tank aquastat to setting or calibration appropriate setting Zone valve does not Check power supply open (if used) Replace as necessary Electrical problem Chec
TROUBLE SHOOTING GUIDE (CONT.) CAUSE Determine peak usage and compare to tank capacity Replace aquastat Reduce demand or consider larger tank Replace aquastat Increase boiler high limit setting R EF Boiler cycles more than 5 times per day in summer Adjust aquastat to higher setting.
SECTION X PART NAME & DESCRIPTION Aquastat Control 7. Drain Valve Aquastat Well 8. Jacket Head Pan Anode 9. Hole Closure Diptube 10. Heat Exchanger Escutcheon Outlet Nipple 11. Escutcheon T & P Relief Valve 12. Finish Flange IN TE R N 1. 2. 3. 4. 5. 6.
Contact your supplier or plumbing professional for replacement parts or contact the company at the address given on the rating plate of the water heater. N LY Provide the part name, model, and serial numbers of the water heater when ordering parts. ER EN C E O READ THE WARRANTY FOR A FULL EXPLANATION OF THE LENGTH OF TIME THAT PARTS AND THE WATER HEATER ARE WARRANTED. R EF Manufactured under one or more of the following U.S.
IN TE R ET N VE R N SI O R FO ER EN C E EF R N LY O Notes 49