Table of Contents
Advertisement
MODELS BTR(C)120 THRU 500A
COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER
•
INSTALLATION
Thank you for buying this energy efficient water heater from
A.O. Smith Water Products Company. We appreciate your
confidence in our product.
PRINTED IN U.S.A. 2576 0903
•
OPERATION
•
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER
AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
MAINTENANCE
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ
THOROUGHLY BEFORE INSTALLING AND USING THIS
APPLIANCE.
A DIVISION OF A. O. SMITH CORPORATION
McBEE, SOUTH CAROLINA, USA
STRATFORD, ONTARIO, CANADA
www.aosmithwaterheaters.com
1
•
LIMITED WARRANTY
CAUTION
PART NO. 195779-000
SUPERSEDES PART NO. 194421-000
Advertisement
Table of Contents
Troubleshooting
Subscribe to Our Youtube Channel
Related Manuals for A.O. Smith BTR(C)120 THRU 500A
Summary of Contents for A.O. Smith BTR(C)120 THRU 500A
-
Page 1: Limited Warranty
MODELS BTR(C)120 THRU 500A COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER • INSTALLATION • OPERATION • MAINTENANCE • LIMITED WARRANTY Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your confidence in our product. -
Page 2: Rough-In-Dimensions
ROUGH-IN-DIMENSIONS MODELS BTR(C) 120 THROUGH 500 See Models Below BTR MODELS 120 THROUGH 500A - TABLE 1A MODEL INPUT APPROX. VENT CONNECTIONS Approximate RATE TANK INLET INLET OUTLET ship. Weight BTU/Hr. CAP. TOP FRONT BACK TOP FRONT BACK STD. ASME BTR120 120,000 BTU/Hr. - Page 3 TABLE 1C - HEATER PERFORMANCE DATA BTR MODELS INPUT APPROX. RECOVERY RATING CAPACITIES (GPH AND LPH) RATE EFF. 30° F 40° F 50° F 60° F 70° F 80° F 90° F 100° F 110° F 120° F 130° F 140° F MODEL BTUH CAP.
-
Page 4: Table Of Contents
TABLE OF CONTENTS Page Page Grounding Instructions --------------------------------------------- 15 ROUGH-IN-DIMENSIONS ---------------------------------------- 2-3 Heater Wiring --------------------------------------------------------- 15 TABLE OF CONTENTS ---------------------------------------------- 4 INSTALLATION DIAGRAMS ----------------------------------- 15-21 FOREWORD ----------------------------------------------------------- 4 MANIFOLDS ----------------------------------------------------------- 22 GENERAL SAFETY INFORMATION ------------------------------ 5 MECHANICAL VENTING ------------------------------------------- 23 Chemical Vapor Corrosion ----------------------------------------- 5 Single Unit Installation --------------------------------------------- 23 Improper Combustion ----------------------------------------------- 5... -
Page 5: General Safety Information
GENERAL SAFETY LIQUID PETROLEUM MODELS INFORMATION Water heaters for propane or liquefied petroleum gas (LPG) are different from natural gas models. A natural gas heater will not function safely on LP gas and no attempt should be made to convert a heater from natural gas to LP gas. PRECAUTIONS LP gas must be used with great caution. -
Page 6: Insulation Blankets
• Do not cover the instruction manual. Keep it on the side of the The input reduction is primarily achieved by reducing the size of the main burner orifices. To do this, the main burner orifices water heater or nearby for future reference. require replacement with orifices sized for the particular •... -
Page 7: Electronic Ignition Control
Continued manual resetting of high limit control, preceded by Service Division, 5621 W. 115th Street, Alsip, IL 60803, 1-800- higher than usual water temperature is evidence of high limit 433-2545, Canada, contact A.O. Smith Enterprises LTD., P.O. switch operation. The following is a possible reason for high Box, 310 - 768 Erie Street, Stratford, Ontario, Canada N5A 6T3, limit switch operation. -
Page 8: Installation Instructions
The National Sanitation Foundation also recommends NEVER BE PLACED ON OR ADJACENT TO THE HEATER. OPEN circulation of 180 F (82°C) water. Where this is done, the CONTAINERS OR FLAMMABLE MATERIAL SHOULD NOT BE circulation should be very gentle so that it does not cause any STORED OR USED IN THE SAME ROOM WITH THE HEATER. -
Page 9: Clearances
ILLUSTRATION OF MINIMUM COMBUSTIBLE CLEARANCES IN AN ALCOVE FIGURE 6 A service clearance of 24" (61cm) should be maintained from AIR REQUIREMENTS serviceable parts, such as relief valves, flue baffles, flue damper devices, thermostats, cleanout openings or drain valves. REFER TO THE LATEST EDITION OF THE "NATIONAL FUEL GAS CODE"... -
Page 10: Confined Space
CONFINED SPACE This water heater must be vented in compliance with all local codes, the current revision of the National Fuel Gas Code (ANSI- When drawing combustion and dilution air from inside a Z223.1) and with the Category I Venting Tables. conventionally constructed building to a confined space, such a space shall be provided with two permanent openings, ONE IN In Canada, venting shall conform to the requirements of the... - Page 11 TECHNICAL DATA VENTING, TABLE 3 TYPE B GAS VENT Multiple Gas Fired Tank-Type Heaters When venting mutiple tank type heaters using Type B vent pipe, follow the installation diagram (figure 8) and tables below which give sizing and data based upon NFPA 54/ANSI Z223.
- Page 12 TECHNICAL DATA VENTING, TABLE 3 (Continued) MODEL BTR(C)-250, 251 Input: 250,000, 251,000 Total Vent Height (Feet) Draft Hood: 6” Input Btuh Rise Vent Connector Diameter (in inches) 250/251,000 1 Ft. 250/251,000 250/251,000 3 Ft. Number Combined Input of Heaters in Thousands of Btuh Manifold and Common Vent Diameter (In inches) 500/502 750/753...
-
Page 13: Water (Potable) Heating And Space Heating
If a water heater is installed in a closed water system, contact also be installed with a properly sized, rated and approved the water supplier or local plumbing inspector on how to control combination temperature (ANSI) and pressure (ASME) relief this situation. -
Page 14: Gas Piping And Dirt Leg Installation
GAGE- 3.5 kPa) SUPPLY GAS PRESSURE. EXPOSURE TO SUPPLIERS. REFER TO THE LATEST VERSION OF THE HIGHER SUPPLY PRESSURE MAY CAUSE DAMAGE TO THE NATIONAL FUEL GAS CODE. For Canadian installations consult GAS VALVE WHICH COULD RESULT IN FIRE OR EXPLOSION. Canadian Installation Code CAN/CSA B149.1-00. -
Page 15: Gas Pressure Regulator
Do not subject the combination gas valve to inlet gas BEFORE PLACING THE HEATER IN OPERATION, CHECK FOR pressures of more than 14.0" W.C. (3.48 kPa) - natural gas, GAS LEAKAGE. Use soap and water solution or other material 14.0" W.C. (3.48 kPa)- propane gas. A service regulator is acceptable for the purpose in locating the leaks. - Page 16 VERTICAL STORAGE TANK AND FORCED CIRCULATION DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI- SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES. HORIZONTAL STORAGE TANK AND FORCED CIRCULATION...
- Page 17 TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGE WITH RECIRCULATION OF SANITIZING LOOP DANGER NOTE 1: TOGGLE SWITCH CONTROLS 180°F (82°C) WATER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE CIRCULATION. INSTALL ON OR CLOSE TO DISHWASHING TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27.
- Page 18 INSTALLATION DIAGRAMS-SIDE INLET/OUTLET USAGE A listed temperature and pressure relief valve of adequate The discharge opening of the temperature and pressure relief capacity is installed on the heater. The locations shown in the valve must be piped to an open drain and should not be subject installation diagrams on the following pages are typical.
- Page 19 ONE OR TWO TEMPERATURE - ONE HEATERS,HIGH TEMPERATURE STORAGE WITH OR WITHOUT RECIRCULATION HEATER WITH OR WITHOUT MIXING VALVE DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER...
- Page 20 TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTER HEATER WITH OR WITHOUT BUILING RECIRCULATION TWO PRE-HEATERS WITH MIXING VALVE DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER...
-
Page 21: Vertical Storage Tank
MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION VERTICAL STORAGE TANK * PIPE RELIEF VALVE TO OPEN DRAIN. **WHEN USING AN A.O. SMITH T-140, - 200, -350 OR -400 STORAGE TANK, USE LOWER 3/4”... -
Page 22: Manifolds
MANIFOLD KITS TWO UNIT MANIFOLD KIT (PART NO. 195686) DIMENSIONS “A” INCHES (CM) MODEL LOW PROFILE VERTICAL HOOD “A” BTR MODELS BTRC MODELS 69.75” (177cm) 69.75” (177cm) 73.00” (185cm) 73.00” (185cm) 67.50” (171cm) 70.50” (179cm) 75.00 (192cm) 81.50” (207cm) 75.00” (192cm) 67.50”... -
Page 23: Mechanical Venting
MECHANICAL VENTING See side wall vent kit installation manual for complete instructions. SINGLE UNIT INSTALLATION MULTIPLE UNIT INSTALLATIONS When mechanical venting of these heaters is desired, the For multiple unit installations, contact A.O. Smith Water Products following kits are available. Company, Technical Support Center at 1-800-527-1953. -
Page 24: Operation
OPERATION PURGING Gas line purging is required with new piping or systems in which air has entered. IMPORTANT A qualified person must perform the initial firing of the heater. At CAUTION this time the user should not hesitate to ask the individual any PURGING SHOULD BE PERFORMED BY PERSONS questions which they may have in regard to the operation and EXPERIENCED IN THIS TYPE GAS SERVICE. -
Page 25: Lighting And Operating Labels
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. THIS APPLIANCE IS EQUIPPED WITH AN IGNITION CALL THE FIRE DEPARTMENT. DEVICE WHICH AUTOMATICALLY LIGHTS THE USE ONLY YOUR HAND TO PUSH IN OR TURN THE PILOT. - Page 26 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. THIS APPLIANCE IS EQUIPPED WITH AN IGNITION CALL THE FIRE DEPARTMENT. DEVICE WHICH AUTOMATICALLY LIGHTS THE USE ONLY YOUR HAND TO PUSH IN OR TURN THE PILOT.
-
Page 27: Water Temperature Control
ADJUSTMENTS that attach to faucets to limit hot water temperatures. Contact a licensed plumber or the local plumbing authority. ON INITIAL STARTUP SOME ADJUSTMENTS ARE NECESSARY. The water temperature is controlled by a thermostat, Fig. 3, which 1. CHECK MANIFOLD AND INLET GAS PRESSURES. has two sensing elements. -
Page 28: Preventive Maintenance
• The pilot flame should envelop sensing device with 5/8" 2. Inspect the venting system for proper size and horizontal (1.6cm) flame, fig. 17. Remove pilot adjustment cover screw, pitch, as required in the National Fuel Gas Code, ANSI Z223.1 fig. -
Page 29: Gas Valves
TYPICAL PILOT AND MAIN BURNER FLAMES If the gas valve becomes defective, repairs should not be attempted. A new valve should be installed in place of the defective one. CHECKING THE INPUT For appliance installation locations with elevations above 2000 feet (610 m), refer to HIGH ALTITUDE INSTALLATIONS section of this manual for input reduction procedure. -
Page 30: Venting System
VENTING SYSTEM the factory installed magnesium anodes with aluminum anodes may correct the condition. Examine the venting system every six months for obstructions Occasionally water softener companies recommend removal of and/or deterioration of the vent piping. heater anodes for odor reasons. Remove all soot or other obstructions from chimney which will retard free draft. -
Page 31: Deliming Solvents
cleanout. UN•LIME and the booklet may be obtained through ® 3. Remove six (6) hex head screws securing tank cleanout plate your A. O. Smith dealer or distributor. and remove plate. 4. Remove lime, scale, or sediment using care not to damage the glass lining. -
Page 32: Troubleshooting Ignition Module System
1. With the 5 gallon Up-N-Down container in the vertical position, — Check that after following the appliance OPERATING unscrew the plastic vent cap in the handle and pierce the INSTRUCTIONS, the “Top Knob” of the appliance gas valve is plastic membrane over the vent boss under the cap to allow in “ON”... -
Page 33: Effikal Flue Damper Troubleshooting Guide
EFFIKAL RVGP-KSF-SERIES FLUE DAMPER TROUBLE SHOOTING GUIDE Do not turn damper open manually or motor damage will result, use the service switch. All readings are taken from harness receptacle. Do not push meter leads into harness receptacle. This opens the pins and will create connection problems. Effikal Pinouts Adapter wire &... -
Page 34: Operational Checklist
OPERATIONAL CHECKLIST This checklist in conjunction with “TROUBLESHOOTING” and the “SEQUENCE OF OPERATION” should be used as an on-the-job troubleshooting guide to identify the cause of incorrect system operation and suggest a remedy for its correction. Because improper piping and wiring can result in unsatisfactory system performance, it is suggested that the installation by examined before using the checklist. -
Page 35: Limited Warranty
Model BTR(C) Limited Warranty A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. 1. THE TANK If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first THREE years after initial installation, the warrantor will supply a complete new A. - Page 36 REPLACEMENT PARTS 5621 W. 115TH STREET, ALSIP, IL 60803 Phone: 800-433-2545 Fax: 800-433-2515 www.aosmithwaterheaters.com...
Need help?
Do you have a question about the BTR(C)120 THRU 500A and is the answer not in the manual?
Questions and answers