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A.O. Smith Vertex 100 Power Vent DV Series 120, Instruction Manual

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Page: 34 / 60

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34

cautIon

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERvICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND

DANGEROUS OPERATION. vERIFY PROPER OPERATION AFTER SERvICING.

power vent wIrInG scheMatIc - fIGure 34.

THIS WATER HEATER

IS POLARITY SENSITvE.

BEFORE APPLYING

ELECTRICITY TO THIS

HEATER BE CERTAIN

THAT SUPPLY NEUTRAL

WIRE TO GROUND

CHECK INDICATES ZERO

vOLTAGE.

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Summary of Contents for Vertex 100 Power Vent DV Series 120

Page 1: ...D WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOU ARE UNSUCCESSFUL CALL THE TECHNICAL SUPPORT PHONE NUMBER SHOWN ON THE WATER HEATER LABELING...

Page 2: ...ed 25 Vertical Vent Terminal Installation 26 Concentric Vent Installation 27 Kit Components 27 Safety Considerations 27 Installation Procedure 1 Roof Termination see Figure C 27 direct vent diagram 30...

Page 3: ...birth defects or other reproductive harm and requires businesses to warn of potential exposure to such substances This product contains a chemical known to the State of California to cause cancer birt...

Page 4: ...any electrical appliance connected to the hot water system If hydrogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow There should...

Page 5: ...5 general safety information...

Page 6: ...h NFPA 54 Use joint compound or Teflon tape compatible with propane gas Fire and Explosion Hazard Turn off gas lines during installation Contact a qualified installer or service agency for installatio...

Page 7: ...ings and all instructions are essential to the proper operation of the water heater and your safety Detailed installation diagrams are also found in this manual These diagrams will serve to provide th...

Page 8: ...Surface Igniter I Junction Box J Gas Valve Assembly K Display Board L Top Plastic Enclosure Z T P Relief Valve AA Rating Plate BB Labels CC Drain Valve DD Vent Terminal EE Drain Pan FF Anode GG Insula...

Page 9: ...ssure for Natural Gas 3 50 87kPa Minimum Supply Pressure for Propane Gas 8 00 1 99kPa Minimum pressure must be maintained under both load and no load dynamic and static conditions Recovery Capacities...

Page 10: ...ter where an adequate supply of fresh air for combustion and ventilation can be obtained See Combustion Air and Ventilation on page 11 9 Locate the water heater where the vent and intake air piping wh...

Page 11: ...h Do not apply insulation to the top of the water heater as this will interfere with safe operation of the blower assembly Do not cover the outer door thermostat or temperature pressure relief valve D...

Page 12: ...do not take in to account the presence of louvers grilles or screens in the openings The required size of openings for combustion ventilation and dilution air shall be based on the net free area of e...

Page 13: ...nstalled in the enclosure When ducts are used they shall be of the same cross sectional area as the free area of the openings to which they connect The minimum dimension of rectangular air ducts shall...

Page 14: ...tral wires in the 120 VAC power supply are reversed the control system will declare a Fault condition and lock out heating operation will be disabled until the power supply is correctly wired The cont...

Page 15: ...re designed to operate with water flow pressures between 15 and 25 pounds per square inch 103 kPa and 173 kPa Flow pressures above 25 pounds per square inch 173 kPa or below 15 pounds per square inch...

Page 16: ...p This condition is not covered under the limited warranty The temperature pressure relief valve is not intended for the constant relief of thermal expansion A properly sized thermal expansion tank sh...

Page 17: ...be blocked or reduced in size under any circumstances Excessive length over 30 feet 9 14 m or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve No valve...

Page 18: ...zing filter prior to disposal Caution must be used to ensure that the drain is free and clear of debris and will not allow backflow through the condensate hose Consideration must be given to avoid fre...

Page 19: ...ll be installed as close to the gas inlet of the water heater as practical at the time of water heater installation The sediment trap shall be either a tee fitting with a capped nipple in the bottom o...

Page 20: ...pipe listed above are exclusive of the termination That is the termination with an installed screen is assumed to be in the system and the remainder of the system must not exceed the lengths discussed...

Page 21: ...eater to allow drainage of condensation INSTALLATION OF VENT SYSTEM Before beginning installation of piping system thoroughly read the section of this manual VENT PIPE PREPARATION If you are installin...

Page 22: ...terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size gas vent directly below Keep clear of all obstru...

Page 23: ...inlet into building or combustion air inlet to any other appliance 4 feet 1 2 m below or to side of opening 1 foot 30 cm above opening D Vertical clearance to ventilated soffit located above the termi...

Page 24: ...ply inlet into building or combustion air inlet to any other appliance 6 inches 15 cm for appliances up to 10 000 Btu hr 3 kW 9 inches 23 cm for appliances between 10 000 Btu hr 3 kW and 50 000 Btu hr...

Page 25: ...READ THE VENT PIPE MANUFACTURER S INSTALLATION INSTRUCTIONS 1 After the points of termination have been determined use the cover plates as templates to mark the holes for the vent pipes to be inserted...

Page 26: ...must be no closer than 24 61cm The specifications are displayed in Figures 17 and 18 NOTE Exhaust vent terminal is installed using the same procedure Flat Roof Installation On flat roof installations...

Page 27: ...cause intermittent operation INSTALLATION PROCEDURE 1 ROOF TERMINATION see Figure 23 1 Determine best location for termination kit NOTE Roof termination is preferred since it is less susceptible to da...

Page 28: ...nts shrubs or air conditioning equipment Termination kit positioned so it will not be affected by wind eddy that may allow recirculation of combustion products or airborne leaves or light snow Termina...

Page 29: ...on more than 60 in See Figure 20 Do not use field supplied couplings to extend pipes Airflow restriction will occur and the heater pressure switch may cause intermittent operation 7 Cement heater comb...

Page 30: ...distance is maintained The air intake screen can be removed for space heating at cold climate installation to prevent potential air intake freeze up If air intake screen is removed during winter to p...

Page 31: ...s 6 inches 15 2cm and above PRIMER It is recommended that Tetrahydrofuran THF be used to prepare the surfaces of pipe and fittings for solvent welding Do not use water rags gasoline or any other subst...

Page 32: ...distance and make a second mark as the primer and cement will most likely destroy your first one Apply primer to the surface of the pipe and fitting socket with a natural bristle brush This process so...

Page 33: ...exhaust elbow and for obstructions in the exhaust venting and exhaust vent terminal Also verify that the vent length does not exceed the maximum allowed as shown in the Vent Section of this manual BLO...

Page 34: ...RORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION VERIFY PROPER OPERATION AFTER SERVICING POWER VENT WIRING SCHEMATIC Figure 34 THIS WATER HEATER IS POLARITY SENSITVE BEFORE APPLYING ELECTRICITY TO THIS...

Page 35: ...ed OPERATING INSTRUCTIONS 1 Set the thermostat to the lowest setting 2 Set the ON OFF switch on the control panel to the OFF position 3 Turn off all electrical power to the appliance if service is to...

Page 36: ...and on again to reset the control system Contact your dealer or servicer if continued high limit switch operation occurs It is recommended that lower water temperatures be used to avoid the risk of sc...

Page 37: ...side the storage tank Heating cycles and ignition are managed by the control system The ECO energy cut out Flame Sensor pressure switches and Temperature Probe is monitored by the control system The C...

Page 38: ...gniter is being energized The Igniter has been energized and the control system has sensed the required minimum igniter current The check mark icon is visual confirmation of minimum igniter current GA...

Page 39: ...the control system Note Cycling power will not reset the control system if the condition that caused the Fault has not been corrected Control System Menus From the Desktop screen pressing the Operatio...

Page 40: ...and description of control system menus Use the Up and Down Buttons to view all control system menus from the Main Menu With Temperatures menu selected highlighted in black in the Main Menu screen pr...

Page 41: ...rrent Operating State see Table 4 for a description of the various operational states ECO Contact Blocked Inlet PS Blocked Outlet PS Blower Prover PS displays the current state of the switch contacts...

Page 42: ...he control system water heater has been energized Burner On Time Total accumulated time the control system has been in the heating operating state burner run time Cycle Count Total accumulated count o...

Page 43: ...ew details for each Fault or Alert message stored Note fault history memory is cleared after 30 days 1 Blocked Air Intake A7 51 mins ago 2 Blocked Exhaust A8 54 mins ago 3 Low Gas Pressure A6 57 mins...

Page 44: ...Contact Information Yes Change Contact Name Change Contact Phone Current Contact Info 000 000 0000 Access Code UPDATE CANCEL Service Contact Information Using the UP and DOWN buttons select highlighte...

Page 45: ...l cause a reaction between this rod and the water The most common complaint associated with the anode rod is one of a rotten egg smell in the hot water The smell is a result of four factors which must...

Page 46: ...on water conductivity not necessarily water condition A corroded or pitted anode rod indicates high water conductivity and should be checked and or replaced more often than an anode rod that appears t...

Page 47: ...14 Connect a hose to the drain valve and terminate it to an adequate drain 15 Ensure the drain hose is secured before and during the entire flushing procedure Flushing is performed with system water...

Page 48: ...ure Pressure Relief Valve on page 17 for instructions on replacement DISCHARGE PIPE TEMPERATURE PRESSURE RELIEF VALVE Figure 37 If the Temperature Pressure Relief Valve on the water heater weeps or di...

Page 49: ...drain valve may be due to the valve being slightly opened F The drain valve may be leaking at the tank fitting G Leakage from recirculation plug or pipe connection H Leakage from the plug under the cl...

Page 50: ...de energized and will coast to a stop 13 Thecontrolsystemnowentersthestandbymodewhilecontinuing to monitor the internal storage tank water temperature and the state of other system devices If the tan...

Page 51: ...y control system Igniter is energized for warm up period 24 V Gas Valve is energized gas flows to Main Burner Is flame sensed at the Main Burner control system monitors the flame sensor Control System...

Page 52: ...s a Fault condition it will display a Fault message on the control system s LCD with an exclamation mark The control system will lock out and disable heating operation until the condition is corrected...

Page 53: ...urface igniter is at ignition temperature causing delayed ignition which can cause a fire or explosion mark The water heater will continue to operate during an Alert condition but the water heater mus...

Page 54: ...CHANGE BACK ADVANCED Ignition Failure Fault occurred 2 mins ago The water heater has failed to ignite the burner Call a service professional Your Company Name Here press DOWN for more The control syst...

Page 55: ...e tube Combustion Blower is not running when energized Loose or open wiring to Combustion Blower CHANGE BACK ADVANCED Blower Prover Open Fault occurred 2 mins ago The blower prover switch remains open...

Page 56: ...56 notes...

Page 57: ...57 notes...

Page 58: ...58 notes...

Page 59: ...stalled at the heater s and operational at all times The temperature and pressure relief valve installed on the heater is not an acceptable method SERVICE AND REPAIR EXPENSES 4 Under the limited warra...

Page 60: ...60 500 Tennessee Waltz Parkway Ashland City TN 37015 Phone 800 527 1953 Fax 800 433 2515 www hotwater com...

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