ULTRA HIGH EFFICIENCY COMMERCIAL GAS WATER HEATER (EF™ Series Models) 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.
SECTION I: IMPORTANT INFORMATION READ CAREFULLY This gas-fired water heater is design certified by CSA International under the American National Standard, Z21.10.3 (as indicated on the rating plate) and CAN/CGA 4.3-M (as indicated on the rating plate) available from CSA Standards Association, 178 Rexdale Blvd., Etobicoke, Ontario, Canada M9W 1R3. This water heater must be installed in accordance with local codes.
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. DO NOT install any damaged venting system components. If damage is evident then please contact the supplier where the water heater was purchased or the manufacturer listed on the rating plate for replacement parts. Use only vent terminals provided or factory authorized terminals for venting this water heater.
WARNING This water heater needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air. Insufficient air supply will cause a recirculation of combustion products resulting in contamination that may be hazardous to life. This will result in carboning or sooting of the combustion chamber, burners, and flue tubes and creates a risk of asphyxiation. This water heater requires its own separate venting system.
SECTION II: SPECIFICATIONS Figure 1. Dimensional Layout Recovery GPH At Degree Rise Model No. EF60T125 EF60T150 EF60T199 EF100T150 EF100T199 EF100T250 EF100T300 EF100T399 Input Rate BTU/h 125,000 150,000 199,999 150,000 199,999 250,000 300,000 399,999 DIMENSIONS ( INCHES ) 1st Hr. Del. Gal. Stg. At Cap. Therm. 100°F U.S. Eff. Rise 40°F 100°F 140°F Gal. % 187 364 145 104 60 96.0 211 423 169 121 60 93.0 265 558 223 159 60 92.0 250 450 180 129 100 99.1 309 597 239 171 100 98.5 364 735 294 210 100 97.
SECTION III: GENERAL INFORMATION FEATURES This water heater contains the following features: MAIN POWER ON/OFF SWITCH – The front panel of this water heater has a lighted ON/OFF switch, which is illuminated when the main power is turned on to indicate power to the water heater. COMBUSTION SYSTEM –This water heater is equipped with a self-compensating negative pressure pre-mix combustion system.
TEMPERATURE AND PRESSURE RELIEF VALVE – WARNING 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.
Figure 2. Condensate Elbow With Trap CLEANOUT – All models are equipped with a cleanout opening to aid in removal of hard water deposits from the tank bottom. If this water heater operates under hard water conditions, the following should be performed at least every 3 months: Turn off water supply and drain the water heater. Remove the cleanout jacket cover and tank cover.
SECTION IV: INSTALLATION INSTRUCTIONS WARNING INSTALLATION OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. PLUMBING, AIR SUPPLY, VENTING, GAS SUPPLY AND ELECTRICAL WORK ARE REQUIRED. DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT CERTAIN OF THE FOLLOWING: Liquefied petroleum gases/propane gas and natural gas have an odorant added by the gas supplier that aids in detection of the gas.
UNPACKING INSPECT SHIPMENT carefully for any signs of damage. 1. All equipment is carefully manufactured, inspected and packed. 2. Any claims for damage or shortage in shipment must be filed immediately with Bradford White Corporation and noted on the Bill of Lading. 3. Remove all venting components from the combustion assembly compartment by removing the latches.
Figure 3b. Recommended Minimum Clearances For Service Access REMOVE CRATE 1. Remove all banding and pry off crate sides carefully so as not to damage the water heater. 2. Carefully roll/lift the water heater from the crate base. CAUTION Do not drop water heater. Do not bump water heater jacket against floor. Do not bump exhaust vent pipe against crate or other objects. This will damage the water heater and cause it to be inoperable or create nuisance problems.
DANGER Temperature setting should not exceed safe temperature at fixtures. See Approximate Time/Temperature Scald Chart in “Section V: Water Connections”. If higher preheat temperatures are necessary to obtain adequate booster output, add an anti-scald valve for hot water supplied to fixtures. LOCATION KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS.
3. If the water heater is installed as a direct vent (outside air piped directly to the water heater), then additional opening, other than the opening for the air intake, are not required. However, adequate ventilation air must be provided in all cases to prevent increased room temperature. CHEMICAL VAPOR CORROSION Corrosion of the flue ways and vent system will occur if air for combustion contains certain chemical vapors.
Figure 6. Typical Two Water Heater Connection Figure 7. Typical Three Water Heater Connection Figure 8.
SECTION V: WATER CONNECTIONS WARNING 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. 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 (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE.
Approximate Time/Temperature Scald Chart APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS 120°F (49°C) More than 5 minutes 125°F (52°C) 1½ to 2 minutes 130°F (54°C) About 30 seconds 135°F (57°C) About 10 seconds 140°F (60°C) Less than 5 seconds 145°F (63°C) Less than 3 seconds 150°F (66°C) About 1½ seconds 155°F (68°C) About 1 second Table 2.
Figure 11. Typical Plumbing Schematic for Zoned Heating SECTION VI: VENTING WARNING The vent system must be properly installed. Failure to properly install the vent system could result in property damage, personal injury, or death. DO NOT install damaged venting system components. If damage is evident then please contact the supplier where the water heater was purchased or the manufacturer listed on the rating plate for replacement parts.
NOTICE Single Wall Polypropylene venting systems that are listed on the Bradford White website are approved for use in the water heaters covered in this instruction manual. The venting system components are ULC S636 approved and listed by a recognized agency and may be installed in the U.S. and Canada. Complete instructions for the approved venting systems can be found on the Bradford White website, bradfordwhite.com or by calling the Technical Service Department at:800-334-3393.
CAUTION The vent shall terminate a minimum of 12 inches (30.5 cm) above expected snowfall level to prevent blockage of vent termination. The horizontal centerline of the exhaust vent terminal (if applicable) must not be located lower than the horizontal centerline of the air intake terminal if vented through the same wall. A service drain loop must be installed in the drain tubing to serve as a condensate trap to prevent flue gases from escaping into the room.
Figure 12a. Vent Terminal Clearances (Other than Direct Vent or “Power Vented” Installations) Canadian 1 Installations US 2 Installations US Installations 3 feet (91 cm) within a height 15 feet (4.6 m) above the meter/regulator assembly 36 inches (91 cm) *b 4 feet (1.2 m) below or to side of opening; 12 inches (30 cm) above opening. 3 feet (.
Figure 12b.
The vent system must terminate so that proper clearances are maintained as cited in local codes or the latest edition of the National Fuel Gas Code, ANSI Z223.1.73.4e and 7.8a, b as follows: 1. Do not terminate near soffit vents or crawl space or other area where condensate or vapor could create a nuisance or hazard or cause property damage. 2.
2. Use the proper PVC cement to secure the exhaust vent and air intake terminals provided with the water heater to the plastic pipes. The distance between the back edge of the exhaust vent terminal and the exterior wall (see Figure 13) must be 6 inches (15.2 cm) more for the exhaust vent terminal than the air intake terminal. Use the proper cement or sealant and assembly procedures to secure the vent connector joints between the terminal and the blower outlet. Provide support brackets for every 3 feet (.
Figure 14. Typical Vertical Direct Vent System Installation (Note: Intake and exhaust terminals may be on different outside walls.) Through The Wall Venting With Low Ground Clearance: When venting cannot exit through the wall at a height greater than or equal to 12 inches (30.5 cm) (and above expected snow level) from the ground, then the installation must be modified as shown below (see Figure 15). Figure 15.
Maximum Vent Length: Direct Vent Maximum Vent Length (Combined Maximum Length for Intake and Exhaust) Max Vent Length feet Max Vent Length feet Model (meters) 3 inch (7.6 cm) (meters) 4 inch (10.2 cm) Number PVC, CPVC, or ABS PVC, CPVC, or ABS EF60T125, EF100T150 120 (36.6) 170 (51.9) EF60T150, EF100T199 100 (30.5) 150 (45.7) EF60T199, EF100T250 80 (24.4) 130 (39.6) EF100T300 60 (18.3) 110 (33.5) EF100T399 50 (15.2) 100 (30.
NOTICE This unit can be vented using only PVC (Class 160, ASTM D-2241 Schedule 40, ASTM D-1785; or Cellular Core Schedule 40 DWV, ASTM F-891), Schedule 40 CPVC (ASTM F-411), or ABS (ASTM D-2661) pipe. The fittings, other than the TERMINATIONS should be equivalent to PVCDWV fittings meeting ASTM F-2665. (Use CPVC fittings, ASTM F-438 for CPVC pipe and ABS fittings, ASTM D-266/3311 for ABS pipe.
Figure 16. Typical Horizontal Power Vent System Vertical Installation: Vertical venting must be supported every 5 feet (1.5 m) of vertical run and every 3 feet (.9 m) of horizontal run of vent pipe length. Stress levels in the pipe and fittings can be significantly increased by improper installation.
Follow the following procedure to vent through the roof: 1. Cut the necessary holes through the roof and ceiling 2. Install the exhaust vent and air intake plastic pipes as shown in Figure 17. Make sure that the installation meets the local codes and/or The National Fuel Gas Code ANSI Z223.1 (Latest Edition) or CGA/CAN B149 Installation Code. Figure 17.
Figure 18. Vent Terminal (Low Ground Clearance) Maximum Vent Length Determination Power Vent Maximum Vent Length Max Vent Length feet Max Vent Length feet (meters) 4 inch (10.2 (meters) 3 inch (7.6 cm) cm) PVC, CPVC, or Model PVC, CPVC, or ABS ABS Number EF60T125, EF100T150 120 (36.6) 170 (51.9) EF60T150, EF100T199 100 (30.5) 150 (45.7) EF60T199, EF100T250 80 (24.4) 130 (39.6) EF100T300 60 (18.3) 110 (33.5) EF100T399 50 (15.2) 100 (30.5) Table 4 Determining required vent length: 1.
MULTIPLE INTAKE/EXHAUST TERMINAL SEPARATION DISTANCES Note: When installing multiple intake/exhaust terminals on the same wall of a building, the nearest intake terminal must be at least 5 feet (1.5 m) from the nearest exhaust terminal.
CONCENTRIC VENT TERMINAL INSTALLATION PROCEDURE WARNING Improper installation, adjustment, service, or maintenance can cause property damage, personal injury, or death. Consult a qualified installer, service agency, or the gas supplier for information or assistance. This kit must be used only for terminating this water heater. Do not use this termination kit for any other appliance. Using this kit on other appliances and/or water heaters can result in property damage, personal injury, or death.
Figure 21. Rain Cap to Small Vent Pipe Ass’y 5. 6. Install concentric Y fitting and pipe assembly through the structure’s hole and field-supplied roof boot/flashing. Do not allow insulation or other materials to accumulate inside pipe assembly when installing through the hole. Secure assembly to roof structure as shown in Figure 22 using field-supplied metal strapping or equivalent support material. NOTICE Ensure termination height is above the roof surface or anticipated snow level. Figure 22.
NOTICE Position termination where vent vapors will not damage plants/shrubs or air conditioning equipment. Position termination where vent vapors will not be adversely affected by wind condition. Position termination where it will not be damaged or be subjected to foreign objects. Position termination where vapors will not be objectionable. 3. 4. Cut the recommended 5 inch (12.7 cm) diameter hole. Partially assemble vent kit. a. Cement Y concentric fitting to larger diameter kit pipe. (See Figure 20). b.
It is acceptable to install a 90 degree elbow on IPEX concentric vent terminations use with this power direct vent water heater (see Figure 23B). A short length of appropriate diameter vent pipe should be used to transition from the vent terminal to the 90 degree elbow. Approved venting materials along with primers and cements are listed at the beginning of this venting section.
INITIAL PREPARATION 1. Make sure the solvent cement you are planning to use is designed for the specific application you are attempting. 2. Know the physical and chemical characteristics and limitations of the PVC, PVC cellular core, ABS or CPVC piping materials that you are about to use. 3. Know the reputation of your pipe and cement manufacturer and their products. 4. Know your own qualifications or those of your contractor.
CAUTION The water heater and individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of ½ psi (3.5 kPa). The water heater must be isolated from the gas supply piping system by closing its manual shutoff valve during any pressure testing of the gas supply system at test pressures equal to or less than ½ psi (3.5 kPa). The supply line must be capped when not connected to the water heater.
SECTION VIII: ELECTRICAL CONNECTIONS WARNING Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. All electrical wiring must be installed and grounded in accordance with local codes, or in the absence of local codes, the National Electrical Code, ANSI/NFPA 70 and/or CSA C22.2 Electrical Code.
SECTION IX: OPERATING INSTRUCTIONS WARNING Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against the water heater or direct vent system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater and direct vent system.
LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE LIGHTING 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 does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B. BEFORE OPERATING smell all around the appliance for gas.
Condensation does not mean your tank is leaking. Most of reported tank leaks on installation are proven to be condensation. To avoid unnecessary inconvenience and expense, make sure the tank is leaking before calling an independent servicing contractor or qualified service professional. DANGER Hotter water increases the risk of scald injury. Scalding may occur within 5 seconds at a temperature setting of 140°F (60°C).
SECTION X: MAINTENANCE DANGER DO NOT ATTEMPT TO REPAIR GAS VALVE. DO NOT ATTEMPT TO REPAIR IGNITION MODULE. DO NOT ATTEMPT TO REPAIR VENTURI. DO NOT ATTEMPT TO REPAIR THERMOSTAT BOARD. DO NOT ATTEMPT TO REPAIR TRANSFORMER. DO NOT ATTEMPT TO REPAIR PRESSURE SWITCH. GENERAL KEEP APPLIANCE AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS. Water heater maintenance includes periodic tank flushing and cleaning, and removal of lime scale.
DRAINING WATER HEATER The water heater must be drained if it is to be shut down and exposed to freezing temperatures. Maintenance and service procedures may also require draining the water heater. 1. Turn off the water heater electrical disconnect switch. 2. Connect a hose to the drain valve. 3. Locate hose’s discharge in an area where hot water will not cause any damage or injury. 4. Close the cold water inlet valve to water heater. 5. Open a nearby hot water faucet to vent the system. 6.
ANODE INSPECTION AND REPLACEMENT This water heater is equipped with multiple sacrificial anodes. Anodes protect the glass-lined tank from corrosion by sacrificing themselves through electrolysis. When the anode material is consumed, there is no more protection and corrosion of the tank accelerates. Inspection of the anode every 6 months allows you to identify the rate of anode degradation. The anode should be replaced when its diameter is ⅜ inch (1 cm), or annually which ever is first.
Figure 28. Powered Anode locations DRAIN VALVE AND TANK ACCESS PANEL The water heaters are equipped with a ¾ inch (1.9 cm) inch drain valve. An access panel covers the cleanout opening in the tank, which is sealed by a gasket and cover. RELIEF VALVE At least twice a year, the temperature and pressure relief valve should be checked to ensure that it is in operating condition. To check the relief valve, lift the lever at the end of the valve several times. The valve should seat properly and operate freely.
COMBUSTION SYSTEM INSPECTION Inspect the operation of the combustion system monthly. Use the following procedure to inspect the combustion system. 1. Turn off the main power switch of the water heater. 2. Adjust the thermostat to the Min. setting. 3. Remove the top of the combustion surround by unlatching it. 4. While observing the ignition module, turn on the main power switch. 5. Adjust thermostat to the Max. setting. 6.
SECTION XII: PARTS LIST EF™ – Series Water Heater 1 2 3 4 5 6 7 8a 8b 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Combustion Surround Ass'y Burner Ass'y (Specify model) 2nd Pass Top Collector Cover Screw 10-16 x ¾” Vent Termination Elbow Thermostat Sensor Probe Baffle 4” Flue (Specify Model) Mag.
1 Combustion Surround Ass'y AA BB CC DD EE FF GG JJ Keeper Latch & Catch Screw 8-32 x ½ RHCR Ignition Control Ass'y Jacket Head 28 ¼" Grey Switch Main Power Potentiometer Combustion Surround Surround Bas/Jacket Head Customer must specify complete model number and serial number when ordering service parts.
2 Combustion Ass'y (pictured previous page) 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A 12A 13A 14A Combustion Ass’y (Specify model) Blower/Gas Valve Ass’y (Specify model) Burner Ass’y (Specify model) Blower – EBM (Specify model) Silicone Hose Burner Mounting Insert Gasket Screw 10-32 x ¾ SHCS Gasket & Screw Gas Valve (Specify model) Nipple 1/2 NPT x 3" Reducer ¾ x 1/2 NPT (or ¾” x 1” for 399) Nipple ¾ NPT x 6" (or 1” NPT for 399) 2" dia.