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instruction manual
commercial gas water heaters
models suf-130- 300/400/500
series 100, 101 & 104
installation - operation - ser Vice
- maintenance - limited warranty
500 Tennessee Waltz Parkway
Ashland City, TN 37015
ASME CRN
ANSI/NSF-5 OPTIONAL
Low Lead Content
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
Do not store or use gasoline or other
flammable vapors and
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t able of contents SAFE iNSTALLATiON, USE AND SEr ViCE.......................................... 3 Supply Gas Line Installation ............................................................ 37 GENErAL SAFETy iNFOrmATiON ...................................................... 4 Supply Gas Regulator Installation ................................................... 38 Precautions ........................................................................................ 4 Electrical Wiring ..............
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safe installation, use and ser Vice The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. read and obey all safety messages and instructions throughout this manual. it is very important that the meaning of each safety message is understood by you and others wh
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general safety information precautions hydrogen gas flammable DO NOT USE THiS APPLiANCE iF ANy PAr T HAS BEEN UNDEr WATEr. immediately call a qualified service agency to inspect the appliance and to make a determination on what steps should be taken next. Explosion Hazard if the unit is exposed to the following, do not operate heater until all corrective steps have been made by a qualified Flammable hydrogen gases service agency. may be present. 1. External fire. Keep all ignition sources a
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general safety information Fire or Explosion Hazard Fire Hazard Do not store or use gasoline or other flammable vapors and For continued protection against liquids in the vicinity of this or any other appliance. risk of fire: Avoid all ignition sources if you smell gas. Do not install water heater on Do not expose water heater controls to excessive gas carpeted floor. pressure. Do not operate water heater if Use only the gas shown on the water heater rating label. flood damaged. Maintain require
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introduction Thank you for purchasing this water heater. Properly installed Detailed installation diagrams are also found in this manual. and maintained, it should give you years of trouble free service. These diagrams will serve to provide the installer with a reference. it is essential that all venting, water piping, gas abbreViations used piping and wiring be installed as shown. Abbreviations found in this instruction manual include : Particular attention should be given to the installatio
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features and components blower/burner assembly detail basic operation The water heaters covered in this manual have a helical coil INTAKE AIR COMBUSTION shaped heat exchanger that is submerged in the storage tank. (combustion air) BLOWER The water heater’s main Burner is a radial design burner, it CONNECTION is mounted on the top and fires downward through the heat 4 INCH PVC exchanger. This is a forced draft burner; hot burning gases are forced through the heat exchanger under pressure and
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t op View 7 8 9 10 6 11 12 5 13 4 2 3 14 2 15 FRONT 16 1 17 18 figure 3 t op View components rise in pressure. This switch is used to insure the Combustion Blower is operating properly. The control system monitors 1. Water Heater’s 120 VAC on/off switch. this switch and will disable heating operation if its contacts 2. Powered anode rods. The water heater’s covered in this are closed before the Combustion Blower is energized or manual are equipped with two powered (non sacrificial) open an
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6 5 11 12 17 15 14 18 13 side Views 1. Cleanout access panel, covers water heater cleanout operational buttons. Used to adjust various user settings and opening. view operational information. See Control System Operation on page 9. 2. CCB enclosure - see Figure 3 on page 9 for description. 11. Temperature-Pressure relief Valve. See Temperature- 3. 120 VAC junction box. incoming power supply and ground Pressure relief Valve on page 9. connections are made here - see requirements for Power
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T & P VALVE INTAKE AIR 4 INCH PVC installation considerations rough in dimensions 4” PVC 35° 1 1/4” SUPPLY GAS INTAKE AIR CONNECTION CONNECTION 20° 70° 69” BACK FRONT (175.3 cm) T & P WATER OUTLET 69” HEIGHT 33.12” (84.1 cm) (175.3 cm) 63 INCHES OUTSIDE (160 cm) 75.50” DIAMETER (191.8 cm) TOP *1 1/2” NPT 50.77” WATER CLEANOUT (129 cm) OUTLET 3/4” NPT 4” PVC DRAIN VENT CONNECTION (exhaust elbow) 1 1/2” NPT FRONT WATER INLET CONDENSATE 4.86” DRAIN CONNECTION (12.34 cm) 1/2 INCH PVC 12” 18° 45° (30
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locating the w ater heater Carefully choose a location for the new water heater. The placement is a very important consideration for the safety of the Fire or Explosion Hazard occupants in the building and for the most economical use of the appliance. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. CAUTION Avoid all ignition sources if you smell gas. Do not expose water heater controls to excessive gas Property Damage Hazard
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All-bronze circulators are recommended for used with commercial extended Vent terminations water heaters. The water heaters covered by this manual can be installed using Some circulating pumps are manufactured with sealed bearings 4 inch pipe for the intake air and/or vent piping up to a maximum and do not require further lubrication. Some circulating pumps of 70 equivalent feet (21.3 m). The intake air and/or vent piping must be periodically oiled. refer to the pump manufacturer’s can b
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installation reQuirements gas pressure reQuirements t able 4 *mANIFOLD PRESSuRE †miNimUm SUPPLy PrESSUrE ‡mAximUm SUPPL y PrESSUrE mODEL NATuRAL GAS PROPANE GAS NATuRAL GAS PROPANE GAS NATuRAL GAS PROPANE GAS SuF 130 300 4” W. C. (1.0 kPa) 10” W. C. (2.49 kPa) 5.2” W. C. (1.29 kPa) 11” W. C. (2.74 kPa) 10” W. C. (2.49 kPa) 12” W. C. (2.99 kPa) 4” W. C. (1.0 kPa) 10” W. C. (2.49 kPa) 5.2” W. C. (1.29 kPa) 11” W. C. (2.74 kPa) 10” W. C. (2.49 kPa) 12” W. C. (2.99 kPa) SuF 130 400 N/A 10” W. C. (2.
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mixing Val Ves HOT WATER OUTLET Water temperature over 125°F (52°C) can cause severe burns instantly 12” TO 15” resulting in severe injury or death. (30-38 cm) Children, the elderly and the TEMPERED WATER physically or mentally disabled are at OUTLET highest risk for scald injury. Feel water before bathing or CHECK COLD showering. VALVE WATER Temperature limiting devices such as INLET MIXING mixing valves must be installed CHECK VALVE when required by codes and to VALVE ensure safe temperatures
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temperature-pressure relief Val Ve CAUTION Water Damage Hazard Explosion Hazard Temperature-Pressure Relief Valve discharge • pipe must terminate at adequate drain. Temperature-Pressure Relief Valve must comply with ANSI Z21.22- CSA 4.4 and ASME code. t&p Valve discharge pipe requirements: Properly sized temperature- pressure relief valve must be • Shall not be smaller in size than the outlet pipe size of the installed in opening provided. valve, or have any reducing couplings or other restrict
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condensate drain combustible material storage The water heaters covered in this manual are condensing appliances and require a building drain to be located in close proximity to allow the condensate to drain safely. Fire or Explosion Hazard Condensate drains from the water heater at the exhaust elbow located at the bottom. The field installed condensate drain line Do not store or use gasoline or other flammable vapors and must not be elevated above the condensate drain connection liquids in
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to provide air for combustion, ventilation and dilution of flue air reQuirements gases. However, in buildings of unusually tight construction (for example, weather stripping, heavily insulated, caulked, vapor barrier, etc.) additional air must be provided using the methods described in the Confined Space section that follows. Breathing Hazard - Carbon Monoxide Gas confined space Install water heater in accordance with A Confined Space is one whose volume IS LESS THAN 50 cubic the Instructio
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Alternatively a single permanent opening, commencing within 12 fresh air openings for confined spaces inches (300 mm) of the top of the enclosure, shall be provided. The following instructions shall be used to calculate the size, See Figure 11. The water heater shall have clearances of at number and placement of openings providing fresh air for least 1 inch (25 mm) from the sides and back and 6 inches (l50 combustion, ventilation and dilution in confined spaces. The mm) from the front of
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outdoor air through two Vertical ducts air from other indoor spaces The illustrations shown in this section of the manual are a reference for the openings that provide fresh air into confined spaces only. do not refer to these illustrations for the purpose of vent installation. See Venting installation on page 19 for complete venting installation instructions. figure 14 The confined space shall be provided with two permanent openings, one commencing within 12 inches (300 mm) of the top and
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installation reQuirements - commonwealth of massachusetts commonwealth of massachusetts inspection The state or local gas inspector of the side wall horizontally For all side wall terminated, horizontally vented power vent, direct vented gas fueled equipment shall not approve the installation vent, and power direct vent gas fueled water heaters installed in unless, upon inspection, the inspector observes carbon monoxide every dwelling, building or structure used in whole or in part for det
