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ULN80 - 125, ULN80 - 165, ULN80 - 180, ULN80 - 199
ULN100 - 199, ULN100T - 199, ULN100 - 250, ULN100 - 270
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 liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS.
•
Do not try to light any appliance.
•
Do not touch any electrical switch, do not use any phone
in your building.
•
Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
•
If you cannot reach your gas supplier, call the
fire department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
NEW STANDARDS IN WATER HEATING
ULN100 - 300, ULN80 - 399, ULN80 - 512
Operation, installation
Commercial Gas Water Heater
and service manual
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Related Manuals for American Standard ULN80-125
Summary of Contents for American Standard ULN80-125
- Page 1 NEW STANDARDS IN WATER HEATING ULN80 - 125, ULN80 - 165, ULN80 - 180, ULN80 - 199 ULN100 - 199, ULN100T - 199, ULN100 - 250, ULN100 - 270 ULN100 - 300, ULN80 - 399, ULN80 - 512 Operation, installation and service manual Commercial Gas Water Heater WARNING: if the information in these instructions is not...
- Page 2 OPERATING, INSTALLATION AND SERVICE MANUAL COMMERCIAL ULNOx GAS WATER HEATER WITH POWER BURNER AND ELECTRIC IGNITION SYSTEM REQUIRES 120V A.C. POWER SUPPLY 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 liquids in the vicinity of this or any other appliance.
- Page 3 DANGER Keep flammable products: 1. far away from heater, 2. in approved containers, 3. tightly closed and 4. out of children´s reach. Water heater has a main burner and pilot flame. The pilot flame: FLAMMABLE VAPORS 1. is on all the time and 2.
- Page 4 WARNING WARNING Fire Hazard Read and understand instruction manual and safety messages before installing, operating or servicing this water heater For continued protection against risk of fire: Failure to follow instructions and safety messages . Do not install water heater on carpeted floor. could result in death or serious injury.
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Page 5: Table Of Contents
TABLE OF CONTENTS WARNINGS WARRANTY LIMITATIONS, CONSUMER RESPONSABILITIES, PRESSURE BUILD-UP, GENERAL INSTALLATION DRAFTHOOD LOCATION & FLUE DAMPER INSTALLATION, VENTING WATER CONNECTIONS, GAS PIPING TYPICAL INSTALLATION SINGLE COMMERCIAL GAS MODEL TOP CONNECTIONS WITH RETURN CIRCULATION AIR SUPPLY, ALL AIR FROM INSIDE THE BUILDING ALL AIR FROM OUTDOORS DISCHARGE OF PURGED GASES, VENTING INSTALLATION SAFETY WARNING L.P. -
Page 6: Warranty Limitations, Consumer Responsabilities, Pressure Build-Up
WARRANTY LIMITATIONS THE MANUFACTURER OF THIS WATER HEATER WILL NOT BE RESPONSIBLE FOR TANK FAILURES OR WATER HEATER FAILURES RESULTING FROM ANY OF THE FOLLOWING CONDITIONS AND MAY AT IT’S DISCRETIONS VOID THE WATER HEATER WARRANTY WHEN THESE CONDITIONS RESULT IN PREMATURE FAILURES OF THE TANK OR COMPONENTS 1. - Page 7 WARNING FAILURE TO PROVIDE A PROPERLY SIZED AND INSTALLED EXPANSION TANK ON THE COLD WATER LINE ON A CLOSED SYSTEM VOID THE WARRANTY ON THE WATER HEATER. MULTIPLE WATER HEATING SYSTEM AND OR A SYSTEM WITH ADDITIONAL STORAGE TANK MUST BE SIZED BY THERMAL EXPANTION TANK MANUFACTURE FOR YOUR SAFETY Do not use or store gasoline or any other flammable vapors, liquids, or materials in vicinity of this or any other appliance.
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Page 8: General Installation
IMPORTANT BEFORE PROCEEDING WITH THE INSTALLATION OF THIS WATER HEATER, READ AND THOROUGHLY UNDERSTAND THESE INSTALLATION AND OPERATION INSTRUCTIONS. IF THERE ARE ANY QUESTIONS, THIS INSTALLATION SHOULD BE PERFORMED BY A QUALIFIED SERVICE PERSON. GENERAL INSPECT SHIPMENT: Inspect water heater for possible damage. If damaged, notify carrier immediately. Check markings on rating plate to make certain it corresponds with your application. - Page 9 REMEMBER: Flammable vapors may be drawn to this water heater from other areas of the structure by air currents. CONSTRUCTION NOTE: HEATER SHALL BE LOCATED OR PROTECTED SO IT IS NOT SUBJECT TO PHYSICAL DAMAGE BY MOVING VEHICLES OR AREA ULN80-125 FLOODING. ULN80-165 18” 2”...
- Page 10 Combustion and Ventilation Air- Provisions must be made for adequate combustion and ventilation air. Details outlining proper air supply for various types of installation are prescribed by the National Fuel Gas Code (ANSI Z-223.1/ NFPA 54) latest edition. If the water heater is installed in unconfined space within the building, infiltration air may be adequate for proper combustion and ventilation.
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Page 11: Drafthood Location & Flue Damper Installation, Venting
DRAFTHOOD LOCATION & FLUE DAMPER INSTALLATION DRAFTHOOD DAMPAR PLATE IN DAMPER CASTING OPEN POSITION Figure 4 CONNECTORS DRAIN PAN INSTALLATION AND CONSTRUCTION MUST CONFORM TO LOCAL CODES AND ORDINANCES. IF NOT INSTALLED AND OPERATED IN ACCORDANCE WITH THESE INSTRUCTIONS, UNDER NO CIRCUMSTANCES WILL THE MANUFACTURER OF THIS WATER HEATER BE LIABLE FOR ANY WATER DAMAGE OR INJURY IN CONNECTION WITH THIS WATER HEATER. -
Page 12: Water Connections, Gas Piping
CAUTION Do not turn on electrical power to water heater until flue damper is installed and the water heater is filled with water. Better combustion is achieved by avoiding numerous elbows in the vent piping. Horizontal piping must be sloped upward at least 1/4 inch per linear foot of length. -
Page 13: Typical Installation
TYPICAL INSTALLATION TERMINATION CLEARANCES SIDE WALL Note: The following picture and table are intended to illustrate clearance requirements, and do not serve as a substitute for locally adopted installation codes. Power Vent Terminal Clearances (uses room air for combustion) Clearance above grade, Clearance to each side of 3 ft. -
Page 14: Single Commercial Gas Model Top Connections With Return Circulation
Hot Water Service Vent Vent Connector STORAGE TANK Sheet Metal Screw Return Line Min. 1/4 in. rise per linear feet from service (when used) T & P Relief Valve 150 PSI pump To Water Heater Drain Spud Shut-off Check Valve valve Return line from circulating loop... -
Page 15: Air Supply, All Air From Inside The Building
AIR SUPPLY Important air for combustion and ventilation must not come from a corrosive atmosphere. Any failure due to corrosive elements in the atmosphere is excluded from warranty coverage. The following types of installation ( not limited to the following) will require outdoor air for combustion due to chemical exposure and may reduce but not elminate the presence of corrosive chemicals in the air. -
Page 16: All Air From Outdoors
ALL AIR FROM OUTDOORS The confined space shall be provided with two permanent openings, one commencing within 12 inches of the top and one commencing within 12 inches of the bottom of the enclosure. The openings shall communicate directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely communicate with the outdoors. -
Page 17: Discharge Of Purged Gases, Venting
NOTE: If the equipment room is located against an outside wall and the air openings communicate directly with the outdoors, each opening shall have a free area of not less than one square inch per 4,000 BTU per hour of the total input rating of all equipment in the enclosure. -
Page 18: Installation Safety Warning L.p. Units, Anodes, Multiple Heater Installation
After completing all gas connections, check each gas connection and fitting for leaks. Use a soap and water solution or a commercial leak detector fluid. NEVER USE MATCHES OR OPEN FLAMES WHEN CHECKING FOR GAS LEAKS. The water heater and its individual gas shut off valve must be disconnected from the gas supply piping system during any pressure testing or that system at test pressures in excess of 1/2 psi (14"... - Page 19 INSTALLATION (Using Top Connect Only) Typical installation showing two (2) Commercial Heaters in parallel manifold using top connect only. Typical installation showing three (3) Commercial Heaters in parallel manifold using top connect only. Typical installation showing four (4) Commercial Heaters in parallel manifold using top connect only. Figure 10 HYDROGEN GAS WARNING...
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Page 20: Temperature And Pressure Relief Valve
TEMPERATURE AND PRESSURE RELIEF VALVE For protection against excessive pressures and/or temperatures, a temperature and pressure relief valve must be installed in the opening marked "temperature and pressure relief valve". A design certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas Shut-off devices for Hot Water Supply Systems, ANSI Z21 .22 is needed. -
Page 21: Electrical, Juction Box, Filling Heater With Water
ELECTRICAL 120 VAC LESS THAN 5 AMPS When installed, this appliance must be electrically grounded in accordance with local codes or in the abscence of local codes, with the National Electrical Code, ANSI/NFPA NO. 70-Latest Edition and Canadian Electrical Code CSA #22.2. Electrical ON-OFF control must be located near heater in accordance with local code. -
Page 22: Installation Checklist
INSTALLATION CHECK LIST Before putting burner in operation This is presented for ease of reference. It is not comprehensive. All instructions and warnings must be read and adhered to A. HEATER LOCATION Close to area of vent. Indoors and protected from freezing temperatures. Proper clearance from combustible surfaces observed and heater not installed directly on carpeted floor. -
Page 24: Damper Operation Sequence, Operation
DAMPER OPERATION SEQUENCE VOLTAGE 24 AC SERVICE SWITCH LEGEND DM Damper Motor F Fuse EC Electronic Cont. ES Endswitch CM Control Module R Relay Coil R1 N/C Relay Contact R2 N/O Relay Contact SS1 N/C Safety Switch Contact SS2 N/O Safety Switch Contact Figure 14 OPERATION Sequence of operation ULNOx Water Heater... - Page 25 Verify Pilot Ignition by using Flame Sensor. Ignition of pilot gas is verified by a flame sensor.The flame sensing electrode is locat- ed in the pilot flame pattern and through a flame rectification process verifies that a correctly sized pilot flame exist. This causes shut off of the spark circuit and opens the main gas valve.
- Page 26 NATURAL GAS MODELS IF YOU SMELL GAS: 1.- Open windows. 2.- Get all people out of the building. 3.- DO NOT light matches. 4.- DO NOT touch electrical switches (on or off). 5.- Extinguish any open flames. 6.- Use an outside phone and immediately call the gas company and the fire department. Ask for instructions.
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Page 27: Instructions For Cleaning Tank, To Return Water Heater To Operation
DANGER DO NOT STORE OR USE ANY COMBUSTIBLE MATERIALS OR LIQUIDS, SUCH AS GASOLINE, PAINT THINNERS OR OTHER FLAMMABLE VAPORS NEAR ANY GAS BURNING APPLIANCES. VAPORS MAY BE IGNITED BY THE PILOT OR MAIN BURNER FLAMES. NO OBSTRUCTION SHOULD BE IN THE FLOW OF COMBUSTION AND VENTILATION AIR. INSTRUCTIONS FOR CLEANING TANK A clean-out procedure is provided for periodic cleaning of the tank. -
Page 28: Combination Space Heating /Potable Water Heating System, Venting System Inspection
COMBINATION SPACE HEATING /POTABLE WATER HEATING SYSTEM When using this heater as a source of heat for a combination space heating/potable water heating system, be sure to follow manual(s) shipped with air handler system. Refer to figure 18 page 32. Note the following warnings: Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system. -
Page 29: Operating Instructions
FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand. B. -
Page 30: To Turn Off Gas To Appliance, Hi-Temperature Limit,Water Temperature Regulation
TO TURN OFF GAS TO APPLIANCE 1.Set the thermostat to lowest setting. 2.Turn off all electrical power to the appliance if service is to be performed. 3.Turn the gas valve knob clockwise to “OFF” position. HI-TEMPERATURE LIMIT The temperature sensor is equipped with a high temperature limit switch (ECO). The ECO will shut off the gas supply to the burner and pilot in the event the water temperature exceeds 190º... -
Page 31: Gas Pressure, Emergency Shutdown Instructions, Tampering, Maintenance
GAS PRESSURE With the water heater in operation (main burner on), the maximum supply pressure must not exceed the specified value below, and the minimum supply and normal manifold gas pressures are as follows: Supply Pressure Manifold Pressure MAX. MIN. NORMAL ULN80-512 11”... -
Page 32: Pilot And Main Burner, Water Heater Sounds, Draining
PILOT AND MAIN BURNER 1” MAIN 1/4” BURNER PILOT BURNER PILOT MAIN BURNER BURNER Figure 16 WATER HEATER SOUNDS I. Possible noises due to expansion and contraction of some metal parts during periods of heat-up and cool-down do not represent harmful or dangerous conditions. -
Page 33: Common Complaints
COMMON COMPLAINTS FOLLOWING IS A LIST OF THE MOST COMMON COMPLAINTS RELATED TO THE USE OF WATER HEATERS. MANY COMPLAINTS ARE DUE TO ITEMS NOT DIRECTLY RELATED TO THE WATER HEATER. DO NOT ATTEMPT TO SERVICE THE WATER HEATER OR PERFORM OTHER RECOMMENDATIONS ON THIS LIST UNLESS YOU ARE TRAINED AND QUALIFIED TO DO SO. - Page 34 CONDITION CAUSE REMEDY Improper calibration Replace control valve Temperature set too high Turn temperature knob to desired temperature Sediment or lime in tank Clean out sediment; Refer to page 22 High operating Heater too small for job Install adequate heater costs Leaking faucets Repair faucets...
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Page 35: Replacement Parts List
REPLACEMENT PARTS LIST (SEE FIGURE 17) PARTS REPLACEMENT MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY OR GAS SUPPLIER The following parts may be ordered through your plumber, a local plumbing supply company, or direct from the factory. Parts will be shipped at prevailing prices and will be billed accordingly. -
Page 36: Replacement Parts Illustration
REPLACEMENT PARTS ILLUSTRATION 25 26 27 28 29 35 34 Figure 17... -
Page 37: Combination Space Heating / Potable Water Heating System
COMBINATION SPACE HEATING / POTABLE WATER HEATING SYSTEM (POTABLE) WATER HEATING AND SPACE HEATING NON-SCALD TEMPERING VALVE COLD WATER INLET SUGGESTED PIPING ARRANGEMENT FOR TOP CONNECTIONS TEMPERED POTABLE WATER RETURN FROM HEAT EXCHANGER Figure 18... - Page 38 Notes:...
- Page 39 Notes:...
- Page 40 561 New York Drive Pomona, CA 91768 USA 1(800) 900-9063 • (909) 392-0230 • Fax (909) 392-7302...
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