Bradford White RG1PV40S Service Manual Download Page 48

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Summary of Contents for RG1PV40S

Page 1: ...ervice To be performed ONLY by qualified service providers Models Covered by This Manual Through The Wall Models RG1PV40S N X RG1PV50S N X RG1PV55H N X RG2PV40T N X RG2PV50H N X RG2PV50T N X RG2PV75H...

Page 2: ...lacement 19 II Pressure Switch Testing Replacement 20 III Blower Testing Replacement 22 IV Blower Temperature Switch Testing Replacement 24 V Gas Control Testing Replacement 26 VI Flammable Vapor Devi...

Page 3: ...as detectors are available Contact your gas supplier or plumbing professional for more information WARNING FAILURE TO INSTALL AND MAINTAIN A NEW LISTED X TEMPERATURE AND PRESSURE RELIEF VALVE WILL REL...

Page 4: ...ol maintains water temperature ignition sequence and regulates gas flow A safety circuit consisting of a pressure switch and blower temperature switch verifies proper conditions exist for safe and rel...

Page 5: ...ols Required for Service Manometer Multi Meter Electronic Probes Thermometer Water Pressure Gage Various Hand Tools A liquid U tube type or a digital magnahelic type can be used This device is used to...

Page 6: ...Gas Control ECO Limit Residential 188 F 87 C Commercial 199 F 93 C Residential Temperature Set Point Range 60 F 16 C to 160 F 71 C approximate temperatures Commercial Temperature Set Point Range 80 F...

Page 7: ...e Roof 1 45 16 8 7 2 1 Through the Roof 2 40 15 2 7 2 1 Through the Roof 3 35 10 7 7 2 1 Through the Roof 4 30 9 2 7 2 1 3 Diameter 10 2 cm Vent Connector Lengths Terminating of Elbows Maximum Straigh...

Page 8: ...gh the Roof 1 55 16 8 7 2 1 Through the Roof 2 50 15 2 7 2 1 Through the Roof 3 45 13 7 7 2 1 4 Diameter 10 2 cm Vent Connector Lengths Terminating of Elbows Maximum Straight Length ft m Minimum Strai...

Page 9: ...2 1 Through the Roof 1 45 13 7 7 2 1 Through the Roof 2 40 12 2 7 2 1 Through the Roof 3 35 10 7 7 2 1 4 Diameter 7 6 cm Vent Connector Lengths Terminating of Elbows Maximum Straight Length ft m Minim...

Page 10: ...ond maximum 1 second minimum Post purge 15 Seconds PS Fault Delay failed open close Retry after 2 minutes Soft Lockout Retry after 5 minutes ECO Limit Lockout Indefinite see page 27 Verify Resistive D...

Page 11: ...ty circuit is closed the control waits 4 seconds gas control LED flashes 2 times with 3 second pause Gas control waits 2 minutes then blower runs for 30 seconds This cycle repeats until safety circuit...

Page 12: ...conds Abnormal Operation 1 Flammable Vapor Sensor or Simulated Resistive Device Fault a If the resistance is greater than 70 000 Ohms the gas control immediately turns off all outputs Control waits an...

Page 13: ...minutes before turning on the blower for another 30 seconds to see the circuit close This cycle repeats as long as there is a call for heat or until the circuit closes c Pressure switch or blower temp...

Page 14: ...s off the blower and flashes 6 times then 3 times with 3 second pause The gas control waits 5 minutes before repeating the ignition sequence b Flame sensed out of sequence the gas control only looks f...

Page 15: ...pause Undesired false pilot flame present 1 Pilot valve stuck in open position Replace gas control page 31 PV Series 15 Observe green LED indicator on electronic gas control Error flash codes are disp...

Page 16: ...ctrode 4 Wire damage to pilot assembly or bad connection at gas valve 5 Insufficient combustion air 6 Gas pressure is out of specification 1 4 Page 19 5 Refer to installation manual 6 Page 26 Six four...

Page 17: ...ating Pilot flame should be stable some causes for an unstable pilot flame are a Water heater vent is less than the allowable vent length b Gas pressure is out of specification c Pilot flame not fully...

Page 18: ...ove burner assembly from combustion chamber Step 7 Thoroughly inspect burner surface area and burner port area and remove any loose debris Step 8 Unscrew burner from main burner orifice Step 9 Remove...

Page 19: ...hms setting check continuity through igniter flame sense wire Replace pilot if no continuity Step 10 Visually inspect igniter flame sense electrode for deterioration Replace pilot as necessary Electro...

Page 20: ...e Switch Testing Step 1 Position power switch on gas control to the OFF position Step 2 Remove the three screws Phillips screw driver from control access cover on blower assembly and remove cover see...

Page 21: ...s not have 2 screws carefully remove it from the housing see photo 4b Step 4 Disconnect tubing from pressure switch see photo 5 Step 5 Disconnect yellow wires from pressure switch see photo 6 Step 6 R...

Page 22: ...Position gas control power switch to ON position and adjust control to call for heat Step 2 Remove the three screws Phillip s screw driver from control access cover on blower assembly and remove cove...

Page 23: ...screws 1 4 nut driver Step 7 Remove blower with gasket from water heater Blower Installation Step 8 Clean any debris from jacket head of water heater Step 9 Set new blower with gasket in place using...

Page 24: ...esting Position power switch on gas control to the OFF position Step 1 Remove the three screws Phillip s screw driver from control access cover on blower and remove cover see photo 14 Step 2 Locate bl...

Page 25: ...yellow wire leads from switch Step 5 With an appropriate tool such as side cutters snip the retaining lug from the blower housing to allow removal of temperature switch see photo 18 Step 6 Remove swit...

Page 26: ...ep 4 Follow instructions located on the lighting instructions label and proceed to light the main burner and observe manometer reading Step 5 Proper operating range for Natural Gas is 4 0 0 5 W C Prop...

Page 27: ...ing the instructions located on the lighting instruction label or the lighting instructions located in the installation and operation manual Gas Control Disassembly Reassembly Step 1 Set the gas contr...

Page 28: ...control is reassembled burner assembly is reinstalled and the gas supply line is reconnected resume water supply to water heater Be sure tank is full of water before relighting Step 10 To resume oper...

Page 29: ...of temperature sensor connector insert the second probe see caution into either of the outside wire positions see photo 19 Alternate the probe on the outside position to the opposite outside wire pos...

Page 30: ...737 725 713 In Degrees F Determine Water Temperature Inside Tank Step 1 Position gas control power switch to OFF position Step 2 Draw approximately 4 gallons of water from the drain valve into a conta...

Page 31: ...x drive screws from FLANGE SECTION of inner door c Remove right side inner door and set aside Be careful not to damage gasket material in inner door Step 7 Removal of Gas Control a Disconnect main bur...

Page 32: ...jacket burner access door when reinstalled f Firmly place right side inner door flange against the left side inner door flange and secure with 2 hex drive screws from step 6b DO NOT OVER TIGHTEN SCREW...

Page 33: ...ensor from gas control Step 3 Using a multi meter set to the ohms setting check resistance of flammable vapor sensor Resistance must be between 3 000 ohms and 48 000 ohms If outside of this range repl...

Page 34: ...ries 34 Safety Circuit Voltage Trace NOTE This procedure assumes a cool tank Remove three screws Phillips Screw driver from control access cover on blower and remove cover see photo 19 WARNING 115 vol...

Page 35: ...35 115 VAC Circuit Trace Step 1 Verify 115 VAC and proper polarity at wall outlet Step 2 With unit plugged in and control power switch in the ON position verify LED status WARNING 115 volt potential e...

Page 36: ...5 Visually inspect inlet nipple dip tube Inlet nipple dip tube should be free of cracks and any blockage Hydrojet slots should be open and free of any blockage Any damage such as cracks restriction du...

Page 37: ...o damage pipe threads Step 5 Visually inspect outlet nipple anode Outlet nipple anode should show signs of depletion this is normal If depletion is of the original anode diameter approximately diamete...

Page 38: ...and 27b Step 7 Inspect baffle or core for deterioration missing restrictors Clean any scale or debris build up Replace with new baffle or core as necessary Step 8 Reinstall baffle or core into flue tu...

Page 39: ...und opening Dirt or debris If the gasket is not affected by any of the above gasket replacement is not required If replacement is required proceed to Inner Door Gasket Replacement Procedure Inner Door...

Page 40: ...n the radiused channel of the inner door around the feedline Using the hex drive screws from step 3c secure left side inner door in place DO NOT OVER TIGHTEN SCREWS Step 9 Position pilot tube and igni...

Page 41: ...astener holes of the combustion chamber are aligned with right side inner door slotted opening Verify seal integrity around combustion opening Secure right side inner door using hex drive screws from...

Page 42: ...vacuum to remove any scale or other debris accumulation Using a soft brush clear jacket openings from any dirt dust restrictions or other obstructions Step 6 Remove any debris from burner assembly per...

Page 43: ...the vent terminals in relation to each other and terminals from other appliances can have an effect on the potential for blockage due to ice or snow See the installation instructions for recommended p...

Page 44: ...15 Wire Harness 16 T P Valve 17 NPT Plug H Models only 18 Burner Assy 19 Main Burner 20 Main Burner Orifice 21 Pilot Assy 22 Pilot Orifice 23 Feedline 24 Outer Door 25 Right side Inner Door 26 Screw...

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