Bradford White EF100T150(E)*(N manuale d’uso

Save this manual for future reference Manual 238-45817-00F SERVICE MANUAL Troubleshooting Guide and Instructions for Service (To be performed ONLY by qua lified servi ce providers) Models Covered by This Manual: For The Bradford White eF Series ® Ultra High Effeciency Models: EFR160T120*(EN,SX) EF60T125(E)*(N,X)(A)(2) EF60T150(E)*(N,X)(A)(2) EF60T[...]

The Bradford White 2 Page eF Service Procedure Introduction 3 - - - How to use this manual 4 - - - Tool required for service 4 - - - Features 5 - - - Specifications 6 - - - Sequence of Operation 10 - - - Troubleshooting 16 - - - Thermostat Circuit, Testing & Replacement 35 I Combustion System Testing and Replacement 43 II Burner Tube Inspection[...]

The Bradford White eF Series ® Ultra High Efficiency Water Heater uses a low Nox premix power burner located at the top of the water heater to direct a turbulent flame down into a submerged combustion chamber. This turbulence causes a thorough mixing of gas and air for optimum combustion. The combustion gases then travel through a three pass flue [...]

It is intended for this manual to be used by qualified service personal for the primary purpose of troubleshooting analysis and repair of the Bradford White eF Series ® Ul tra High Efficiency Water Heater. Understanding the sequence of operation section of this manual will contribute greatly to troubleshooting this product. An “Installation Chec[...]

Attractive digital water heater display on control panel for setting and displaying the temperature setpoint. Pressing temperature UP and DOWN buttons changes the temperature setpoint. Same water heater display used on all models. Temperature format may be displayed in °F or °C. Single control board with plug in wiring controls temperature, ignit[...]

EFR-1-60T-120 EF60T1 25 EF60T1 50 EF60T1 99 EF100T150 EF100T199 EF100T250 EF100T300 EF100T399 120,000 125,000 150,000 199,999 150,000 199,999 250,000 300,000 399,999 180 187 211 265 250 309 364 405 521 345 363.6 422.7 557.6 450.5 597 734.8 836.4 1,127 138 145.5 169.1 223 180.2 238.8 293.9 334.5 451 99 103.9 120.8 158 129 171 210 239 322 60 60 60 60[...]

7 Thermostat Sensor 11,900 Ohms @ 70°F, ECO opens @ 201°F Max., ECO close @ 100°F Min. Thermostat Board Max temp 180°F, Min temp 91°F, 24VAC, 60Hz max. Hot Surface Igniter 120VAC, 30-120 ohms @ room temperature. Flame Sensor Output Minimum 1 micro amp, Typical range 4 to 7 micro amps. Temperature Dial Min. set point 5400-6600 ohms, Max set poi[...]

8 Power supply Dedicated 120 VAC, 60 Hz, 15 A Thermostat Sensor 11,900 Ohms @ 70°F, ECO opens @ 207°F Max., ECO close @ 120°F Min. Redundant sensor for ECO. Sensor inside well for easy replacement of sensor. Spark Rod Igniter 0.22" nominal gap to the burner surface. Flame Sensor Output Minimum 1 micro amp, Typical range 5 to 30 micro amps. [...]

Notes: 1) Multiply the total number of 90° elbows (intake and exhaust) by 5 feet. Do not include the termination fittings or 3" condensate elbow. 2) Multiply the total number of 45° elbows (intake and exhaust) by 2 ½ feet. 3) Add this to the total length of straight pipe - intake and exhaust. 4) The sum total of all elbows and straight pipe[...]

1 Thermostat calls for heat. -Prior to energizing blower, ignition module checks safety circuits for normal switch positions: a) Vent temp switch normally c losed. b) Intake pressure switch normally closed. c) Exhaust pressure switch normally open. If the vent temp switch is open, the control waits indefinitely for temp switch to close (green light[...]

If normally closed pressure switch conta cts open during burner operation, gas valve clo ses, burner shuts off. Blower restarts after 30 seconds and runs 5 minutes to wait for pressure switch to close. If not, locks out. The system will go into lock out mode for the following reasons: - Pressure switches stuck open or closed. a) Check for exhaust o[...]

1 Thermostat calls for heat. 2 Blower energizes, pressure switch contacts are normally closed. If the pressure switch co ntacts are open, blower operates for up to 5 minutes waiting for contacts to close, then blower stops and flashes red PURGE LED indicating lock- out condition. 3 6 Steady state operation. Ignition module m onitors: - Thermostat c[...]

Lockout conditions: The system will go into lock out mode for the following reasons: Blocked vent pressure switch contacts open: Check for obstruction in exha ust pipe and vent terminal. Check for blocked condensate trap or drain line. In cold climates, make sure drain is not frozen. No ignition after 3 attempts: a) Check inlet and outlet gas press[...]

For models with Honeywell Integrated Control System w/ Direct Spark Ignition T hermostat calls for heat. Combustion blower starts. Blower pre-purge period of 30 seconds. Trial for Ignition. (5 seconds, 3 trials). Flame establishing period (3 seconds), gas valve opens, sparks from spark rod to burner surface to ignite the gas. Burner on, flame provi[...]

For models with Honeywell Integrated Control System w/ Direct Spark Ignition The system will go into lock out mode for the following reasons: 1. ERROR CODE 62 or 63 Control board will go into “Soft Lockout” if the main burner cannot be lit or fails to prove flame after 3 ignition trials. The water heater displa y indicates a lockout condition b[...]

Refer to ignition module illustration, is there 120VAC between P1(1) and P1(3) ? Is front panel power switch light on, indicating power? Y N Position front panel power switch to “ON” position. Is there 120VAC across switch? (see photo at right) Light burned out, replace switch. Y Is there 120VAC a cross terminal block? (see photo at right) N De[...]

Determine failure mode by observing flashing LED status on ignition module. LED status and probable cause shown below. * Denotes conditions that may require the water heater to be isolated from the vent system to determine root cause. LED status & probable cause For models with Hot Surface Ignition LED STATUS Power & flame light flashing. P[...]

System Observation For models with Direct Spark Ignition Water Heater Fault: Water heater does not operate Display Error Code: Water heate r display does not operate - blank display Check main power supply to water heater - fuse, circuit breaker, plug receptacle, line cord or wiring to water heater. C heck to make sure switch on front of control pa[...]

System Observation For models with Direct Spark Ignition Does combustion blower operate? Error code #29 on display. Refer to C ontrol Board illustration. Measure voltage between terminals P7(3) & P7(5) on the “inducer” output (make sure the control display shows “heating” in the status mode, if not increase the setpoint). Is there 110-1[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control T he display has a “service mode” for changing the maximum setpoint and accessing info rmation in aiding servicing of the water heater. This procedure is for service and installation personnel only. To en ter the Service Mode, follow the steps illustrated bel[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control 1. Max Setpoint (Display/Change) 2. Tank Sensor Temperature Displayed Wa ter Temperature Average. SELECT SET Status °F idle Wat er Temp O perational 21 S ELECT SET S tatus °F i dle O perational Max S etp oint val ue i n W ater He ater Display Max S etpoin t &am[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control 4. Setpoint (Display/Change) S ELECT SET Status ° F i dle setpoi nt O perat ion al 5. °F/°C (Display/Change) S ELECT SET S tatu s °F/C° idle O peratio nal °F s etpoi nt 6. Differential (Display only - shows the diff erential of the thermostat) SELECT SET St[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control 7. Software Version (Display only) 8. Error Code History (Displays if there are present error codes o r up to 10 previous error codes). Water Heater Display will show a “--“ if there are no error codes. S ELECT SET S tatu s i dle O pe ratio nal To change the [...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control S tep 2: Press “Set” button to enter setting mode. “Max Setpoint” will flash to indicate setting mode. Step 3: Press the “UP” or “DOWN” buttons to change the maximum setp oint value. This will limit the maximum setpoint the user can select. Note: [...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control Step 5: 30 Seconds after the last button press, the Water Heater Display will go back to “User Mode”. It will read “Max S etpoint” without showing a te mperature value if the temperature setpoint is at th e maximum setting. The Water Heater Display can be[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control To Display Flame Sense Current of the Pilot Flame Sensor: The pilot flame sense current is available only when the burn ers are in operation. Step 1: Make sure the status displays “Heating” or draw enough hot water to start the burners. Step 2: Enter the “S[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control Step 2: Press the “Set” button to enter the setting mode. “Setpoint” will flash in the water heater display. SELECT SET Status °F idle setpoint Operat ional Step 3: To raise the temperature setpoint, press the “Te mperature Up” button until the de si[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control Step 5: When the desired setpoint is reached on the water heater display, press the “Set” button to confirm the new setpoint. “Setpoint” stops flashing in the water heater display. SELECT SET Status °F idle setpoi nt Operational To Display and Cha nge Te[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control Step 3a: Press “Temperature Up” bu tton to change temperature format to °C SELECT SET Status idle Operati onal °C % °F/C° Step 3b: Press “Temperature Down” butt on to change temperature format to °F S ELECT SET Status i dle Operati onal ° F ° F/C°[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control Step 5: Pressing “Select” button will return display to setpoint in format selected (°F or °C) immediately SELECT SET Status °F idle Operati onal Lower S ens or Error Codes and Erro r History Display: If there is an operating problem with the water heater,[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control To view previo us error codes: Step 1: In “Service Mode press the “Select” button until the next display after the “Software Version”. If there are no current error codes, the display will show -- . SELECT SET Status °F i dle Ope r atio nal Step 2: Pre[...]

Accessing Service Mode on Control Display For models with Honeywell Integrated Control Step 4: Press the “Temperature Down” button to change to the previous code index, code #9. SELECT SET Status idle Operati onal % Step 5: Press the “Select” button for code ind ex #9 to view if there are any code numbers. S ELECT SET Status idle Opera tion[...]

Error Code Definitions For models with Honeywell Integrated Control ERROR CODE DEFINITIONS I f the water heater has an operating problem, there will be a numbe r in the water heater display with “Service Needed” shown below the error code number. Note the error code an d the definition in the chart below. This label appears on the control box u[...]

Resetting Error Codes For models with Honeywell Integrated Control 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 [...]

IMPORTANT NOTE: This procedure assumes a cool tank WARNING 120 volt potential exposure. Use caution making voltage checks to avoid personal injury. CAUTION Use caution not to damage connectors when making voltage measurements or jumping terminals WARNING Do not reset the display from the hard lockout state without correcting the caus e of the overh[...]

Condition: Water Heater Not Operating Display shows error code “65” High Water Temperature (over 200 °F) (Continued from previous page) Once cause of overheating con dition has been diagnosed and corrected, the control ma y be reset Reconnect and switch on power to the water heater. Enter service mode on the water heater display (see illustrat[...]

Refer to ignition module i llustration, Is there 24VAC between P3(7) and P3(8) ? Y OK, thermostat is calling for heat. Turn off power to heater. Disconnect YELLOW and RED wires from the thermostat board at location N .O. and COM shown in photo at right. Use a jumper to connect these two wires together as shown in photo at right. Restore power to he[...]

° F 012345678 9 40 26109 25400 2471 2 24045 23399 22771 22163 21 573 21000 20445 50 19906 19383 1887 6 18383 17905 17440 16990 16 553 16128 15715 60 15314 14925 1454 8 14180 13823 13477 13140 12 812 12494 12185 70 11884 11592 1130 8 11032 10763 10502 10248 10 000 9760 9526 80 9299 9078 8862 8653 8449 8250 80 57 7869 7685 7507 90 7333 7165 7000 683[...]

Refer to ignition mo dule illustration, Is there 120VAC between P1(1) and P1(3) ? Refer to ignition mo dule illustration, Is there 22 - 27VAC between P2(1) and P2(2) ? Refer to ignition mo dule illustration, Is there 120VAC between P7(3) and P7(1) ? Replace transformer. (see Transformer Replacement) Refer to ignition mo dule illustration, Is there [...]

WIRING DIAGRAM For models prior to CF serial number Step 5. Carefully d isconnect all wires from the rmostat board. Note: it may be necessary to identify wires for proper re-connection. Step 6. Remove the two screws (Ph illips head screw driver) that secure thermostat board to control panel. Step 7. Install new thermostat bo ard to control panel us[...]

Thermostat Potentiometer Replacement Procedure Step 4. Loosen set scre w of adjusting knob (small blade screw driver) and remove adju sting knob from potentiometer. (see photos at right) Step 5. Remove retain ing nut (½" wrench) and washer from potentiometer. (see photos at right) Step 6. From inside of surrou nd area, remove potentiometer wi[...]

Thermostat Sensor (Thermister) Replacement Procedure Step 5. Fold back insu lation just in front of burner to expose temperature se nsor (see photo below). Step 6. Disconne ct temperature sensor from harness (see photos at right). Step 7. Hot Surface Ig nition Models: Remove temperature sensor (1-1/16" hex, deep well socket) from heater. Direc[...]

Does inlet gas pressure drop more than 2" W.C. during burner ignition? Adjust gas supply regulator Inadequately sized regulator. Y N N Y N Y N IGNITION MODULE Verify Minimum Gas Supply Piping Requirements of: Minimum 1" NPT for EF100T399, all others use ¾" NPT. (Schedule 40 black Iro n Pipe recommended). Reconfigure gas supply pipin[...]

Refer to ignition module illustration below, is there 24VAC between P3(2) and P3(5) (blue and brown wires) during the flame establishing period? (Note: Valve LED must be lit during this check) Y Replace ignition module. (see “Ignition Module Replacement Procedure”) N Replace Rectifier harness and /or gas valve. (see “Gas Valve Replacement P r[...]

Does inlet gas pressure drop more than 2" W.C. during burner ignition? Adjust gas supply regulator Inadequately sized regulator. Y N N Y N Y N Verify Minimum Gas Supply Piping Requirements of: Minimum ¾" NPT. (Schedule 40 black Iron Pipe recommended). Reconfigure gas supply piping Y Observe burner opera tion through the sight glass locat[...]

Refer to control board illustration, is there 24VAC between P5(5) and P5(8) (blue and brown wires) during the flame establishing period? (Note: Control Display m ust show “Heating” for operating status) Y Replace Control Board N Replace Rectifier harness and/or gas valve. (see “Gas Valve R eplacement Procedure”) N Y Does burner stay lit? Ca[...]

Step 1. Position main power switch to “OFF”. Step 2. Disconne ct (unplug) water heater from 120 volt power source. Step 3. Turn o ff gas supply to water heater. Step 4. Un-latch and remove surrou nd cover from top of heater. Step 5. F rom the gas valve, disconnect the gas connection, PVC venting, Silicone tubing and wire harness. Step 6. Discon[...]

Combustion System Replacement Procedure Step 1. Fully inspe ct burner mounting insert gasket for the fo llowing: a ) Tears d) Dirt or debr is b) Missing material e) Other imperfections that would inhibit proper seal c ) Cracks If gasket is NOT affected by any of the above, gasket replacement is not required. Step 2. Install combustion assembly usin[...]

Step 1. Position main power switch to “OFF”. Step 2. Disconne ct (unplug) water heater from 120 volt power source. Step 3. Turn o ff gas supply to water heater. Step 4. Un-latch & remove surroun d cover from top of heater. Step 5. From the g as valve, disconnect the gas connection, PVC venting, wire harness and silicone tubing. Step 6. Disc[...]

Burner Tube Inspection S tep 1. Inspect burne r tube as follows (BSI ceramic fiber mesh burner, water hea ters prior to serial number “CK”) : a) Visually inspect ceramic fiber mesh, mesh should be u niform in appearance without large gaps, tears or fraying. Mesh should have uniform pattern allowing for unrestricted gas flow. b) Gently squeeze b[...]

Gas Valve Replacement Procedure Step 6. Remo ve the 2 gas valve mou nting screws (Torx bit) located at the 11:00 O-clock & 5:00 O-clock position on the venturi mounting flange and remove gas valve from wate r heater. Step 7. Remove any residual gasket ma terial from blower and venturi mounting flange. Step 8. Install new gas valve with n ew gas[...]

Hot Surface Ignition Models: Are safety circuits in normal position? Direct Spark Ignition Models: Is collector high limit switch and pressure switch in normally closed position? D oes blower energize? (For Direct Spark Ignition models, ensure control display shows “Heating”, raise temperature setpoint if necessary) Is there 120VAC across the w[...]

Blower Replacement Procedure Step 5. Disconnect wire harness from blower. Step 6. Disconne ct intake vent and gas supply from gas valve assembly. Step 7. Remo ve the 2 gas valve mou nting screws (Torx bit) located at the 11:00 O-clock & 5:00 O-clock position on the venturi mounting flange. Step 8. Remove The 4 blower flange mounting screws (5/3[...]

Does blower energize? N Y Sequence of operation: With the thermostat calling for heat, prior to energizing blower, the ignition module checks the exhaust pressure switch for norma l switch position of normally open. If the exhaust pressure switch contacts are closed (not in normal position), the ignition modu le waits 45 seconds for the pressure sw[...]

Inspect the area housing the combustion system and control panel located at the top of the heater. Does the area show sign s of corrosion and/or exssesive heat? Y N Call for technical support Remove combustion assembly (see “Combustion System Removal Procedure”) Inspect combustion chamber for blockage or debris accumulation N Replace exhaust pr[...]

Exhaust Pressure Switch Replacement Procedure Step 1. Position main power switch to “OFF” position. Step 2. Loosen a dhesive backed rubber escutcheon from service pane l access cover and slide escutcheon back along exhau st pipe to allow for removal of cover. Step 3. Remove scre ws from service panel access cover (¼" nut driver) and remov[...]

Reset button Does blower energize? N Sequence of operation: The blocked vent pressure switch monitors the pressure in the exhaust tube. The switch contacts are normally closed and will not open unless there is a blockage in the exhaust venting or terminal (snow, ice, debris). If the blocked vent pressure switch contacts open after the thermostat in[...]

Check Exhaust Tube Pressure Blocked Vent Pressure Switch Testing and Replacement for serial number “CF” and later Exhaust Tube pressure tap location Exhaust tube at bottom of heater N Replace blocked vent switch. (see “Blocked Vent Switch Testing and Replacement”) Is exhaust venting system blocked or obstructed? Also check condensate elbow [...]

Exhaust Pressure Switch Replacement Procedure S tep 1. Position main power switch to “OFF” positio n. S tep 2. Loosen adhesive backed rubber escutcheon from service pan el access cover and slide escutcheon back along exha ust pipe to allow for remova l of cover. Step 3. Remove screws from service panel access cover (¼" nut driver) and rem[...]

Is igniter resistance less than 150 Ohms (cold)? (see “check igniter resistance” below) Refer to ignition module illustration below, is there 120VAC across terminals P6(1) and P6(2) ? (Check during igniter warm up period, indicated by the igniter LED glowing on the ignition module). Y N Replace hot surface igniter (see “Hot Surface Igniter Re[...]

Hot surface Igniter Replacement Procedure Step 1. Position main power switch to “OFF” Step 2. Disconnect (unplug) water he ater from 120 volt power source. Step 3. Un-latch & remove surround cover from top of heater. Step 4. Fold back insulation in front of combustion assembly to expose hot surface ign iter. (see photo at right) Step 5. Dis[...]

With flame sensor Disconnected from ignition module, check continuity to ground. Is there continuity to ground? N Y Flame Sensor Testing Procedure Refer to illustration below, is there a minimum of 1 micro amp during 1.5 second flame proving perio d? Y N Is flame sensor free of oxidation? Clean or replace flame sensor. (see “Flame Sensor Replacem[...]

Flame Sensor Replacement Procedure Step 4. Fold back insulation in front of combustion assembly to expose flame sensor. (see photo at right) Step 5. Disconnect wire lead from flame sensor. Step 6. Remove the 2 sensor mounting screws (magnetic tip, long reach Phillips screw driver) and remove flame sensor & gasket from transition base flange. St[...]

64 Spark Rod Gap Inspection and Adjustment Step 1. Remove combustion system as described in “ Combustion System Removal Procedure”. Step 2. Measure spark gap between the spark rod and burner tube. Accepta ble spark gap is between 3/16" - 1/4" (see photo below). Step 3. If spark gap is not between 3/16" - 1/4“, the spark rod may[...]

65 Spark Rod Replacement Procedure Step 4. Fold back insulation in front of combustion assembly to expose spark rod. (see photo at right) Step 5. Disconnect wire lead from spark rod. Step 6. Remove the 2 mounting screw s (magnetic tip, long reach Phillips screw driver) and remove spark rod & gasket from transition base flange. Step 7. Remove an[...]

Ignition Module Replacement Procedure Step 1. Position main power switch to “OFF”. Step 2. Disconnect (Unplug) water heater from 120 Volt power source. Step 3. Un-latch & remove surround cover from top of water heater. Step 4. Locate Ignition module on control panel inside surround area. (see photo below) Step 7. Install new ignition module[...]

Control Board Replacement (Honeywell Integrated Control w/ Direct Spark Ignition) Step 1. Position main power switch to “OFF” Step 2. Disconnect (unplug) water heater from 120 volt power source. Step 3. Un-latch and remove top surround cover from top of water heater. Step 4. Locate control board. WARNING 120 volt potential exposure. Isolate the[...]

Transformer Replacement Procedure Step 4. For Hot Surface Ignition models , refer to ignition module illustration below, Disconnect wire harness P1 labeled “PRIMARY” and P2 labeled “SECONDARY” from ignition module. Step 5. For Hot Surface Ignition models , Disconnect secondary leads (blue & yellow wire) from thermostat board. Note the b[...]

Is there continuity through the normally closed intake pressure switch? (see photo at right) Y Replace intake pressure switch. (see “Intake Pressure Switch Replacement Procedure”) Switch OK. Does Blower Energize? Does purge LED illuminate on the ignition module? Remove hose from intake pressure switch and Restart heater. Does purge LED illumina[...]

Intake Pressure Switch Replacement Procedure Step 1. Position main power switch to “OFF”. Step 2. Disconnect (Unplug) water heater from 120 Volt power source. Step 3. Un-latch & remove surround cover from top of water heater. Step 4. Locate intake pressure switch on control panel inside surround a rea (see photos below). Step 6. Disconnect [...]

Reset heater, observe heating cycle. Does switch open? Y Does switch open prior to 350°F? DO NOT OPERATE HEATER System over heating, immediately contact technical support. N Locate harness connection. (see photo at right) Y Is there continuity Through GREY Lead wires of heater side harness? (see photo at right) N Replace vent safety switch (see ?[...]

Vent Safety Switch Replacement Procedure Step 1. Position main power switch to “OFF”. Step 2. Loosen adhesive backed rubber escutcheon from service p anel access cover and slide escutcheon back along exhau st pipe to allow for removal of cover (see photos at right). Step 3. Remove screws from service panel access cover (¼" nut driver) and[...]

Disassembly Procedure for Access to Anodes & Flue Baffles Step 1. Position main power switch to “OFF”. Step 2. Disconnect (Unplug) water heater from 120 Volt power source. Step 3. Un-latch & remove surround cover from top of heater. Step 4. Disconnect wire harnesses to allow for removal of control panel. Note: Where ever possible, rath [...]

Anode inspection and replacement Step 1. Turn off water supply and d rain water heater. Step 2. Disassemble water heater per “Disassembly Procedure for Access to Andoes & Flue Baffles”. Step 3. Locate and remove anode rods from heater (1-1/16 hex socket). Step 4. Visually inspect anode rod. Anode rod should show signs of depletion, this is [...]

Flue baffle inspection and replacement Step 1. Disassemble heater per “Disassembly Procedure for Access to Anodes & Flue Baffles”. Step 2. Remove flue baffles from heater (pliers) (8 two inch baffles & 2 four inch baffles). Step 3. Visually inspect flue baffles. Flue baffles should show signs of oxidation, this is norma l. If the oxidat[...]

Powered Anode Replacement EF100T399 models only Powered Anode Replacement for EF100T399 only The powered anode control module is loca ted on the right vertical side of the contro l panel inside the surround panel. The control has a LED indicator light to show the status of operation. When the tank is filled with water and the power supply is on to [...]

Collector Cover Installation Procedure Step 1. Remove old silicone from top surface of collecto r flange and collector cover. Step 2. Apply ¼" bead of Ultra Copper Silicone around entire collecto r flange surface. Allow caulk to “cure” for 10 minutes. Step 3. Carefully reinstall collector cover, tighten screws evenly. Step 4. Allow a mini[...]

Product Handling - Carefully uncrate the heater. Move in place with a hand truck (Do not use the venting pipes for handles). Electrical Requirements - Make sure there is 120 volts line voltage. Line voltage must be properly polarized. Adequate ground supplied to the heater. Venting Requirements - All venting must stay within the required lengths an[...]

R 79 Date Model Number Serial Number Venting (PVC, CPVC): Intake 90's (qty) Vent size 3" or 4" Exhaust 90's (qty) Length of straight pipe (intak e) Intake 45's (qty) Exhaust 45's (qty) Line Voltage Polarity Low Voltage Electrical: Size & material Distance from meter to water heater Gas Line: Static Manifold Running[...]

Models prior to “CF” serial number 80 C Customer must specify complete model number and serial number when ordering service parts. 1 Combustion Surround Assy. 2 Burner Assy 3 2 nd Pass Top Collector Cover 4 Screw 10-16 x 3/4 5 Vent Termination Elbow 6 Thermostat Sensor Probe 7 Baffle 4" Flue 8 Anode 9 Baffle 2" Flue 10 Wire Harness Se[...]

Customer must specify complete model number and serial number when ordering service parts. 81 Models prior to “CF” serial number AA Latch Assy BB Screw 8-32 x ½ RHCR CC Ignition Control Assy DD Jacket Head EE Main Power Switch FF Potentiometer GG Combustion Surround JJ Surround Base 1A Combustion Surround Assy. 2A Blower Gas Valve Assy 3A Burn[...]

Customer must specify complete model number and serial number when ordering service parts. 82 Models prior to “CF” serial number 1C Electronic Control Module 2C Screw 8-32 x 1/2 3C Intake Pressure Switch 4C Control Mounting Panel 5C Thermostat PC Board 6C Transformer 120VAC x 24VAC x 40VA 7C Terminal 8C Terminal Strip 9C Power Cord 10C Control [...]

For models with “CF” serial or later. Customer must specify complete model number and serial number when ordering service parts. 83 1 Combustion Surround Assy. 2 Burner Assy (specify model) 3 2 nd Pass Top Collector Cover 4 Screw 10-16 x 3/4 5 Vent Termination Elbow 6 Thermostat Sensor Probe 7 Baffle 4" Flue (specify model) 8a Anode Rod As[...]

For models with “CF” serial or later. Customer must specify complete model number and serial number when ordering service parts. 84 AA Latch Assy BB Screw 8-32 x ½ RHCR CC Ignition Control Assy DD Jacket Head EE Main Power Switch FF Potentiometer GG Combustion Surround JJ Surround Base 1A Combustion Surround Assy. (specify model) 2A Blower Gas[...]

For models with “CF” serial or later. Customer must specify complete model number and serial number when ordering service parts. 85 Electronic Control Module Screw 8-32 x 1/2 Control Mounti ng Panel Thermostat PC Board Transformer 120VAC x 24VAC x 40VA Terminal Terminal Strip Power Cord Control Wire Harness Thermostat Wire Harness Powered Anode[...]

For models with Direct Spark Ignition Customer must specify complete model number and serial number when ordering service parts. 1 Combustion Surround Assembly 2 Burner Assembly (specify model) 3 2 nd Pass Top Collector Cover 4 Screw 10-16 x 3/4 5 Vent Termination Elbow 6 Thermostat Sensor Probe 7 Baffle 4" Flue (specify model) 8 Anode Rod Ass[...]

For models with Direct Spark Ignition Customer must specify complete model number and serial number when ordering service parts. 1A Combustion Surround Assembly (specify model) 2A Blower Gas Valve Assy. (specify model) 3A Burner Assy. (specify model) 4A Blower EBM (specify model) 5A Silicone Hose 6A Burner Mounting Insert Gasket 7A Screw 10-32 x3/4[...]

For models with Direct Spark Ignition Customer must specify complete model number and serial number when ordering service parts. 88 1C Control Panel 2C Control Board 3C 4C Transformer 120VAC x 24VAC x 40VA 5C Terminal 6C Terminal Strip 7C Power Cord 8C Controller Wire Harness 9C Transformer Primary Wire Harness 10C Transformer Secondary Wire Harnes[...]

NOTES AC Alternating Current BTU/H British Thermal Units CO Carbon Monoxide CO2 Carbon Dioxide DC Direct Current DSI Direct Spark Ignition ECO Energy Cut Off GFI Ground fault interrupt GPM Gallons per Minute HSI Hot Surface Igniter Hz Hertz LED Light Emitting Diode NOx Oxides of Nitrogen NPT National Pipe Thread PSI Pounds per Square Inch RPM Revol[...]

NOTES 90 90[...]

NOTES 91 91[...]

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