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POWERED DIRECT VENT SERIES GAS-FIRED
COMMERCIAL WATER HEATER
INSTALLATION/OPERATION MANUAL
PLACE THESE INSTRUCTIONS ADJACENT TO WATER HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE
(INDEPENDENT PVC VENTING)
WITH TROUBLESHOOTING GUIDE
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.
-
For your family's comfort, safety and
convenience, it is recommended this water
heater be installed and serviced by a
plumbing professional.
238-47707-00E
REV 7/12
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Summary of Contents for Bradford White POWERED DIRECT VENT SERIES GAS-FIRED COMMERCIAL WATER HEATER
- Page 1 POWERED DIRECT VENT SERIES GAS-FIRED COMMERCIAL WATER HEATER (INDEPENDENT PVC VENTING) 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.
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Page 2: Table Of Contents
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 and CAN/CGA 4.3-M (as indicated on the rating plate). These standards are available from CSA Standards Association, 5060 Spectrum Way Mississauga, Ontario L4W 5N6 CANADA. This water heater must be installed in accordance with local codes. - Page 3 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. This water heater is equipped with an adjustable thermostat to control water temperature. Hot water temperatures required for automatic dishwasher and laundry use can cause scald burns resulting in serious personal injury and/or death.
- Page 4 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.
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Page 5: Specifications
SECTION II: SPECIFICATIONS Figure 1. Dimensional layout Model Description Dimensions for Figure 1 Capacity Input (BTU/hr) (Gal) Nat. (In.) (In.) (In.) (In.) (In.) 199,999 199,999 72.13 60.31 77.19 56.81 74.13 150,000 150,000 72.13 60.31 77.19 56.81 74.13 250,000 225,000 72.13 60.31 82.13 56.81... -
Page 6: General Information
SECTION III: GENERAL INFORMATION FEATURES 1. Porcelain enamel lined tank provides corrosion protection with a tough glass lining on the interior of the tank. 2. Magnesium anodes provide an extra measure of protection and extends tank life. 3. Direct Vent design with an induced draft blower. Flue gases are exhausted and combustion air is taken from outside the building through 3”... - Page 7 DISHWASHING MACHINE REQUIREMENTS All dishwashing machines meeting the National Sanitation Foundation requirements are designed to operate with water flow pressures between 15 and 25 pounds per square inch. Flow pressures above 25 pounds per square inch, or below 15 pounds per square inch, will result in improperly sanitized dishes. The National Sanitation Foundation also recommends circulation of 180°F water.
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Page 8: Installation Instructions
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: ... - Page 9 Minimum Clearances CAUTION The National Fuel Gas Code (ANSI Z233.1- latest edition) or in Canada The Natural Gas or Propane Installation Code CAN/CGA (B149.1, B149.2- latest edition), expressly prohibits the following: a. Installation of a water heater in a bathroom, bedroom, or any occupied room normally kept closed. b.
- Page 10 LOCATE WATER HEATER in front of final position before removing crate. LOCATE so that venting connections will be short and direct. THIS WATER HEATER IS SUITABLE FOR INSTALLATION ON COMBUSTIBLE FLOOR. Proper venting practices must be considered when selecting a location for this water heater. For exact venting specifications, please consult the Venting section of these Installation and Operating Instructions.
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Page 11: Venting
SECTION V: VENTING WARNING The direct vent system must be properly installed. Failure to properly install the direct vent system could result in property damage, personal injury, or death. 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. -
Page 12: For Installations In Canada
NOTICE For installations in Canada, field supplied vent piping must comply with CAN/CGA B149.1 (latest edition) and be certified to the Standard For Type BH, Class II, 65°C, Gas Venting Systems, ULC S636. Components of this listed system must not be interchanged with other vent systems or unlisted pipe/fittings. - Page 13 Figure 3. Direct Vent Terminal Clearances Canadian Installations US Installations Clearance above grade, veranda, porch, deck or balcony 12 inches (30 cm) 12 inches (30 cm) Clearance to widow or door that may be opened 36 inches (91 cm) 12 inches (30 cm) Clearance to permanently closed widow Vertical clearance to ventilated soffit located above the terminal within a 12 inches (30 cm) *a...
- Page 14 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.
- Page 15 Direct Vent System Installation (199,999 and 150,000 Btu/hr. input models) WARNING The direct vent system must be properly installed. Failure to properly install the direct vent system could result in property damage, personal injury or death. The water heater requires its own separate venting system. Do not connect the exhaust vent into an existing vent pipe or chimney.
- Page 16 CAUTION IMPORTANT - All of the Exhaust Venting connections must be leak checked with a soap solution upon initial start up of the water heater. Any leaks must be repaired before continuing operation of the water heater. Through the Wall Venting: Cut two 3 1/2”...
- Page 17 Figure 6 Figure 7A Figure 7B...
- Page 18 Figure 7C Through the Wall Venting With Low Ground Clearance: When venting cannot exit through the wall at a height greater than or equal to 12” (30.5 cm) (and above expected snow level) from the ground, then the installation must be modified as shown below (see Figure 8). Refer to Tables 3 or 4 for maximum venting lengths using 3”...
- Page 19 Direct Vent System Installation for Models with Input Ratings Over 200,000 Btu/Hr. Models with input ratings over 200,000 Btu/hr. must use 4” (10.2 cm) diameter pipe. Install the blower adaptor exhaust vent assembly and gasket supplied in the vent kit carton on the exhaust blower outlet flange as described in the previous section.
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Page 20: Water Connections
SECTION VI: WATER CONNECTIONS NOTE: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY VALVE. After shutting off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out of the pipes while making the water connections to the water heater. After the pressure has been relieved, close the faucet. - Page 21 WARNING Keep clear of 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. For protection against excessive temperatures and pressure, install temperature and pressure protective equipment required by local codes, but not less than a combination temperature and pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials as meeting the requirements of the Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot...
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Page 22: Gas Connections
SECTION VII: GAS CONNECTIONS The gas supply lines must meet all requirements of the National Fuel Gas Code (ANSI Z223.1-Latest Edition), or in Canada CAN/CGA B149.1 Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest Edition). The minimum permissible gas supply pressure for the purpose of input adjustment is one (1.0) inch (0.25 kPa) water column above the operating manifold pressure. -
Page 23: Electrical Connections
SECTION IX: 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. - Page 24 TYPICAL INSTALLATION Notes: The heat trap shown above is not part of the water heater, only a piping suggestion to reduce the standby heat loss. The drain pan may be purchased from your water heater supplier. 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.
- Page 25 Lighting And Shutdown Instructions Temperature down CAUTION Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system including gas controls, which has been under water.
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Page 26: Operating Instructions
SECTION X: OPERATING INSTRUCTIONS TEMPERATURE ADJUSTMENT 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... - Page 27 Water Heater Display and Control Buttons Shown flashing in display only when Temperature temp is adjusted Up Button Sequence of Temperature Setpoint setpoint °F operation Indicator in Degrees F or Degrees C Reads "Idle” or “Heating" Range 70 - Max °F idle Status Operational...
- Page 28 TO INCREASE SETPOINT TEMPERATURE Step 1: Depress and hold “Temperature Up” button until desired setpoint temperature appears in the display. °F idle Operational Status SELECT Step 1 Step 2: “Setpoint” indicator begins flashing in the display after pressing “Temperature Up” button. "Setpoint"...
- Page 29 To Decrease Setpoint Temperature Step 1: Depress and hold “Temperature Down” button until desired setpoint temperature appears in the display. °F idle Operational Status SELECT Step 1 Step 2: “Setpoint” indicator begins flashing in the display after pressing “Temperature Down” button. "Setpoint"...
- Page 30 To Change Temperature Format in Display from F to C or ˚C to ˚F: Step 1: Press “SELECT” button until F/C is displayed. °F °F/°C idle Operational Status SELECT P ress select Step 1 Step 2: Press “SET” button to change temperature format. Symbol F/C will flash. °F °F/°C idle...
- Page 31 Step 3b: Press “Temperature Down” button to change temperature format to F. Changes to "°F" °F/°C Flashes °F °F/°C idle Operational Status SELECT Step 3b Step 4: Press “SET” button to confirm ˚F or ˚C format. F/C will stop flashing. Setpoint display will appear in the format selected (˚F or ˚C) in 10 seconds.
- Page 32 An automatic gas shut-off device (ECO) is incorporated in the sensor and control board which will shut off all gas supply to the burner and pilot if the water heater temperature exceeds 200°F (93°C). Should the ECO function (open), the water temperature should be reduced to approximately 120°F (49°C) and follow Lighting Instructions to place the water heater in operation.
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Page 33: Maintenance
SECTION X: MAINTENANCE Burner Flame Check At the time of installation and at periodic intervals (about every 3 months), a visual check of the pilot and burner flames should be made to determine if they are burning properly. No adjustment to the air shutter should be required for this heater. - Page 34 A qualified service technician should perform the following maintenance at the minimum periodic intervals suggested below. In some installations, the maintenance interval may be more frequent depending on the amount of use and the operating conditions of the water heater. Regular inspection and maintenance of the water heater will help to insure safe and reliable operation.
- Page 35 To reinstall the burner rack, reverse the above procedure. Alternate method for removing the burner rack, when there is at least 20” (50.8 cm) clearance on the left front side: a) Shut off the gas and electrical supply to the water heater. b) Disconnect both pilot tube fittings at the combustion box bulkhead fitting.
- Page 36 13. The induced draft blower motor used in this model series has sealed bearings and does not have provisions for oiling the bearings. 14. The vent system must be inspected at least once a year to ensure against leakage of exhaust products. CAUTION FOR YOUR SAFETY, DO NOT ATTEMPT REPAIR OF COMBINATION GAS CONTROL, BURNERS OR GAS PIPING.
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Page 37: Diagnostic And Troubleshooting Guide
SECTION XI: DIAGNOSTIC AND TROUBLESHOOTING GUIDE DIAGNOSTIC GUIDE FOR HONEYWELL INTEGRATED CONTROL SYSTEM SEQUENCE OF OPERATION FOR PDV AND INDUCED DRAFT MODELS 1. When the tank temperature drops below the temperature setpoint on the display, the control sends power to the induced draft blower to start the ignition sequence. - Page 38 ACCESSING SERVICE MODE ON THE WATER HEATER DISPLAY (FOR SERVICE PERSONNEL ONLY) The display has a “service mode” for changing the maximum setpoint and accessing information in aiding servicing of the water heater. This procedure is for service and installation personnel only. To enter the Service Mode, follow the steps illustrated below: WARNING The following procedure is for service and installation personnel only.
- Page 39 The following is the sequence of modes available in “Service Mode” by pressing the “Select” button: Error Code Number (Display/Reset). This is only shown if there is an operating error in the “User Mode”. Error Code Shown in Water Heater Display Status Service Needed SELECT Lockout RESET...
- Page 40 2b. Water Temperature - Upper Sensor (Displays if there is an upper sensor – some models) °F idle Operational Status Upper Sensor SELECT 2c. Water Temperature - Lower Sensor (Displays if there are two sensors) °F idle Operational Status ...
- Page 41 4. Setpoint (Display/Change) setpoint °F idle Operational Status SELECT 5. ˚F/˚C (Display/Change) °F °F/C° idle Operational Status SELECT 6. Differential (Display only – shows the differential of the thermostat) Differential °F idle Operational Status SELECT...
- Page 42 7. Software Version (Display only) Soft idle Operational Status SELECT 8. Error Code History (Displays if there are present error codes or up to 10 previous error codes). Water Heater Display will show -- if there are no error codes. No current error codes idle Operational...
- Page 43 Step 2: Press “Set” button to enter setting mode. “Max Setpoint” will flash to indicate setting mode. "Max Setpoint" Flashes °F Setpoint idle Operational Status SELECT Step 3: Press the “UP” or “DOWN” buttons to change the maximum setpoint value. This will limit the maximum setpoint the user can select.
- Page 44 Step 5: 30 Seconds after the last button press, the Water Heater Display will go back to “User Mode”. It will read “Max Setpoint” without showing a temperature value if the temperature setpoint is at the maximum setting. The Water Heater Display can be set back to the “User Mode”...
- Page 45 Step 2: For water heaters using two temperature sensors, pressing the “Select” button again displays the Upper Sensor temperature reading. “Upper Sensor” will be displayed in the lower right side of the status window of the water heater display. °F idle Operational Status...
- Page 46 To Display and Change Temperature Setpoint: Step 1: In “Service Mode” press the “Select” button until “Setpoint” is shown in the water heater display. setpoint °F idle Operational Status SELECT Step 2: Press the “Set” button to enter the setting mode. “Setpoint” will flash in the water heater display. "Setpoint"...
- Page 47 Step 4: To lower the temperature setpoint, press the “Temperature Down” button until the desired temperature is shown on the water heater display. "Setpoint" Flashes setpoint °F idle Operational Status SELECT Step 5: When the desired setpoint is reached on the water heater display, press the “Set” button to confirm the new setpoint.
- Page 48 Step 2: Press “Set” button to change temperature format. “˚F/˚C” symbol will flash in the water heater display. "°F/°C" Flashes °F °F/C° idle Operational Status SELECT Step 3a: Press “Temperature Up” button to change temperature format to ˚C. Changes to "°C" "°F/°C"...
- Page 49 Step 4: Press “Set” button to confirm ˚F or ˚C format. ˚F/˚C will stop flashing. "°F/°C" Symbol Stops Flashing °F °F °F/C° idle Operational Status SELECT Step 5: Pressing “Select” button will return display to setpoint in format selected (˚F or ˚C) immediately. Setpoint shown in °F °F idle...
- Page 50 How to reset the control from Lockout Conditions: WARNING The following procedure is for service and installation personnel only. Resetting lockout conditions without correcting the malfunction can result in a hazardous condition. If an error code is displayed (except for #4, low flame sense current), the water heater will be in a “lockout condition” with the water heater display showing the error code number and “Service Needed”...
- Page 51 Error Codes and Error History Display: If there is an operating problem with the water heater, an error code number will appear on the water heater display with “Service Needed” to the right of the “Status” indicator. The error code label is located below the water heater display and the following section in this Installation and Operating Instruction Manual explains the error codes with corrective actions to repair the water heater.
- Page 52 Step 2: Press the “Temperature Down” button to select the error code index, starting with the most recent error code “10”. Error Code Index idle Operational Status SELECT Step 3: Press the “Select” button to view the error code for “code 10”. If there is a number displayed, note what the number is. The label next to the water heater display will identify the code number.
- Page 53 Step 4: Press the “Temperature Down” button to change to the previous code index, code #9. Error Code Index idle Operational Status SELECT Step 5: Press the “Select” button for code index #9 to view if there are any code numbers. Stored Error Code For Code Index #9 idle...
- Page 54 Step 6: Continue pressing the “Temperature Down” button to change to the next error code index and press “Select” to view the error code number, if any, for that index number. Continue on to index #1, the oldest error code index. The water heater display will store up to 10 error codes with the oldest code starting in code index #1 with the most recent code in code index #10.
- Page 55 Error Definition of Code Cause of Problem and Actions Taken to Correct Code Check to make sure gas valve has closed. No voltage should be present at the Flame Detected gas valve before the ignition cycle. Make sure wire positions on the wire harness Before Ignition are correct.
- Page 56 Procedure for Checking Thermostat Sensors Set the thermostat above water temperature (See temperature adjustment section) and observe system through one (1) complete cycle. Make sure system operates as desired. To check the upper sensor or lower sensor assembly, compare the resistance of the sensor terminals (blue leads for upper sensor, yellow and black lead for lower sensor) as measured by an ohmmeter to the water temperature as measured by an accurate thermometer.
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Page 57: Parts List
SECTION XII: PARTS LIST PART NAME AND DESCRIPTION REPLACEMENT PARTS LIST FOR POWERED DIRECT VENT MODELS 1. Induced Draft Blower Assembly 2. Diptube Contact your supplier, plumbing professional or the company listed on the rating 3. Pressure Switch plate of the water heater for replacement parts. 4. - Page 58 VENT KIT COMPONENTS AND OPTIONAL CONDENSATE TEE 150,00 AND 199,999 BTU/HR. MODELS: 3” VENT KIT MODELS OVER 200,000 BTU/HR.: 4” VENT KIT COMMON: 3” AND 4” VENT KIT 3” OR 4” EXHAUST TERMINAL 3” OR 4” INTAKE TERMINAL...
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Page 59: Installation For Potable Water And Space Heating
SECTION XIII: INSTALLATION FOR POTABLE WATER AND SPACE HEATING THE FOLLOWING INSTRUCTIONS ARE FOR INSTALLATION OF: GAS WATER HEATERS SUITABLE FOR WATER (POTABLE) HEATING AND SPACE HEATING 1. All piping components connected to this water heater for space-heating applications must be suitable for use with potable water. -
Page 60: Notes
SECTION XIV: NOTES...