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CURRENT FAULT

DESCRIPTION/ACTION

DISPLAY

Select Current Fault from the Main Menu and press the Operational 

Button under "SELECT" to enter this menu. This menu contains non 

adjustable operational information. Use the Up & Down Buttons to 

navigate the menu.
This menu contains the current Fault or Alert error message. The 

time  the  Fault  or Alert  message  occurred  appears  directly  below. 

A  brief  description  of  what  causes  the  particular  Fault  or  Alert 

condition  appears  below  that.  Pressing  the  Operational  Button 

under "ADVANCED" will give more detailed service information and 

a list of possible causes for the Fault or Alert condition.
If there is no Fault or Alert condition active this menu will not contain 

any information, "(none)" will be shown next to Current Fault in the 

Main menu.

 

CHANGE

 

BACK 

ADVANCED

Blocked Exhaust

Fault occurred 2 mins ago

Restriction in exhaust pipe.

Check exhaust pipe and

termination for blockage.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

FAULT HISTORY

DESCRIPTION/ACTION

DISPLAY

Select Fault History from the Main Menu and press the Operational 

Button under "SELECT" to enter this menu. This menu contains non 

adjustable operational information. Use the Up & Down Buttons to 

navigate the menu.
This menu contains a list of the last nine (9) Fault and Alert messages 

with a time stamp. The newest event will replace the oldest.
Press the Operational Button under "VIEW" to view 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 ago

4:  

Blower Prover Failure (AC)

 

VIEW 

BACK 

HELP

Fault History

FAULT OCCURRENCE

DESCRIPTION/ACTION

DISPLAY

Select  Fault  Occurrence  from  the  Main  Menu  and  press  the 

Operational Button under "SELECT" to enter this menu. This menu 

contains non adjustable operational information. Use the Up & Down 

Buttons to navigate the menu.
This menu contains a running total of how many times each Fault 

condition has occurred since the water heater was first installed.

NOTE: 

Historical data is stored in the CCB's memory. If this CCB 

is replaced during servicing the historical data on the CCB being 

replaced will be lost. The data stored in the new circuit board will no 

longer reflect the entire history of the water heater.

RESTORE FACTORY DEFAULTS

DESCRIPTION/ACTION

DISPLAY

Select Restore Factory Defaults from the Main Menu and press the 

Operational Button under "SELECT" to enter this menu.
To  restore  the  adjustable  user  settings  to  their  factory  default 

settings  press  the  Operational  Button  underneath  “YES.”  The 

display will show text confirming the factory default settings have 

been restored.
Press the Operational Button underneath “BACK” to exit the Restore 

Factory Defaults menu.

 

YES 

 

NO

Restore Factory Defaults

Are you sure you want to

restore the system to factory

defaults?

Summary of Contents for 650HTPDT

Page 1: ...675 Y H TPDT SERIES 140 141 ALL TECHNICAL AND WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOU ARE UNSUCCESSFUL CALL THE TECHNICAL SUPPORT PHON...

Page 2: ...Installation 23 Installation Instructions 23 High Altitude Installations 23 Filling The Water Heater 23 INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS 24 VENTING INSTALLATION 25 Vent...

Page 3: ...irth 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 birth...

Page 4: ...ogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPE...

Page 5: ...5 GENERAL SAFETY INFORMATION...

Page 6: ...read and understand instruction manual Breathing Hazard Carbon Monoxide Gas Property Damage Hazard All water heaters eventually leak Do not install without adequate drainage CAUTION Fire and Explosion...

Page 7: ...installation of thermometers at the locations indicated in the piping diagrams as these are necessary for checking the operation of the water heater The principal components of the water heater are id...

Page 8: ...IN DIMENSIONS Units A B C D E F G H I 50G Inches 66 75 49 25 22 00 15 75 3 00 8 00 8 00 62 00 65 00 cm 169 5 125 09 55 88 40 00 7 62 20 32 20 32 157 48 165 1 75G Inches 65 25 45 64 27 75 16 00 3 71 8...

Page 9: ...ol Valve open All models Maximum Supply Pressure 14 inches W C 3 48kPa Minimum Supply Pressure for Natural Gas 3 50 87kPa Minimum Supply Pressure for Propane Gas 8 00 1 99kPa Minimum pressure must be...

Page 10: ...EATURES AND COMPONENTS 24 18 35 31 9 4 2 3 19 29 20 22 23 21 1 12 16 25 11 17 33 13 26 27 34 SEE ACCESS PANEL CAUTION 28 30 32 21 18 5 14 15 Caution Thisaccesspanelcovers a 2 NPT plug that was require...

Page 11: ...tion and Condensate Piping for more information VACUUM RELIEF VALVE INSTALL PER LOCAL CODES 75 GALLON UNIT FEATURES AND COMPONENTS CONT 24 18 35 31 9 4 2 3 19 22 23 21 1 12 17 25 11 29 5 18 21 20 16 2...

Page 12: ...2 Top Plastic Enclosure 13 Display Enclosure 14 Exhaust Elbow Assembly 15 Condensate Drain Outlet 16 Enable Disable Switch 17 Display Overlay 18 Hot Water Outlet 19 Gas Supply 20 Main Manual Gas Shuto...

Page 13: ...manual BLOCKED INTAKE SWITCH The Blocked Intake Switch is set up to shut the unit off when a build up of negative pressure in the intake air pipe occurs This switch is a negative pressure switch that...

Page 14: ...quate supply of fresh air for combustion and ventilation can be obtained See Combustion Air and Ventilation on Page 15 9 Locate the water heater where the vent and intake air piping when installed wil...

Page 15: ...per combustion potentially resultinginfire asphyxiation serious personalinjury ordeath Do not apply insulation to the top of the water heater as this will interfere with safe operation of the blower a...

Page 16: ...ngs to provide fresh air must be provided that accommodate the requirements for all appliances in the room and the exhaust fan Undersized openings will cause air to be drawn into the room through the...

Page 17: ...the bottom of the enclosure The horizontal ducts shall communicate directly with the outdoors See Figure 7 Each duct opening shall have a minimum free area of 1 square inch per 2 000 Btu hr 1100 mm2...

Page 18: ...re changing the factory setting on the thermostat read the Temperature Regulation section in this manual This water heater shall not be connected to any heating systems or component s used with a non...

Page 19: ...econds 149 65 1 second 2 seconds 154 67 8 instantaneous 1 second U S Government Memorandum C P S C Peter L Armstrong Sept 15 1978 GAS PIPING Make sure gas supplied is same type listed on model rating...

Page 20: ...essure is measured while gas is not flowing static pressure AND while gas is flowing dynamic pressure SUPPLY GAS REGULATOR The maximum allowable gas supply pressure for this water heater is 14 inches...

Page 21: ...check valves and back flow preventers Devices such as these cause the water system to be a closed system THERMAL EXPANSION As water is heated it expands thermal expansion In a closed system the volum...

Page 22: ...ap must be on and tight when unit is in operation NOTE If the Blocked Exhaust Fault message is ever displayed on the control system LCD check the condensate drain first and ensure it is not blocked TE...

Page 23: ...install an additional trap in the condensate drain piping See Figure 12 3 Terminate the condensate drain piping with an elbow above the drain Ensure that any discharge will exit the condensate drain l...

Page 24: ...he horizontally vented gas fueled heating appliance or equipment The sign should read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS INSPEC...

Page 25: ...chedule 40 80 ASTM F441 or CSA B137 6 SDR Series ASTM F442 Polypropylene See page 26 M G Duravent PolyPro vent system Centrotherm InnoFlue vent system NOTE The use of cellular core PVC ASTM F891 cellu...

Page 26: ...lations Table 5 M G Duravent PolyPro Nominal Pipe Diameter Flue Outlet Adapter Adapter Connector Ring Connector 90 Degree Elbow Vent Material Terminal s 2 2PPS AD PPS PAC 2PPS LB 2PPS E90 2PPS 2PPS 2P...

Page 27: ...igure 12 Figure 12 VENT TERMINATION VENT PIPE TERMINATION The first step is to determine where the vent pipe will terminate See Figures 12 through 20 The vent may terminate through a sidewall as shown...

Page 28: ...side The template can now be positioned on the outside wall using the drilled holes as a centering point for the template A MASONRY SIDE WALLS Chisel an opening approximately 1 2 1 3 cm larger than th...

Page 29: ...anical air supply 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 locat...

Page 30: ...mechanical air supply 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...

Page 31: ...ing 3 The air intake termination and the exhaust vent termination must penetrate the same side of roof 4 The center line of the air intake termination and the center line of the exhaust vent terminati...

Page 32: ...MUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL 24 MINIMUM SEPARATION EXHAUST MUST BE AT SAME LEVEL OR ABOVE INTAKE TERMINAL SNORKELINGISALLOWEDTOACHIEVE PROPERCLEARANCE THESNORKEL MUSTBESECURELYSU...

Page 33: ...less susceptible to damage has reduced chances to intake contaminants and less visible vent vapors 2 Cut 1 hole 5 in diameter 3 Partially assemble concentric vent termination kit a Cement Y concentric...

Page 34: ...t 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 Termination kit positioned where it will not g...

Page 35: ...gs to extend pipes Airflow restriction will occur and the heater pressure switch may cause intermittent operation 8 Cement heater combustion air and vent pipes to concentric vent termination assembly...

Page 36: ...late 4 Screw the Cap to the Base using the supplied screws 5 Once the vent termination and pipes are secured the wall penetrations will need to be sealed from the interior using a PVC compatible seala...

Page 37: ...don t smell gas go to the next step Set the ENABLE DISABLE switch on the control panel to the ENABLE position Set the ENABLE DISABLE switch on the control panel to the DISABLE position GAS OFF O N Sta...

Page 38: ...the power supply to the water heater must be turned off and on again to reset the control system Contact your dealer or servicer if continued high limit switch operation occurs It is recommended that...

Page 39: ...ulates water temperature inside 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...

Page 40: ...d The Blower Prover pressure switch contacts have closed The check mark icon is visual confirmation of contact closure The Igniter is being energized GAS OFF O N The 24 Volt Gas Control Valve is being...

Page 41: ...front of the unit CONTROL SYSTEM MENUS From the Desktop screen pressing the Operational button directly below Menu on the LCD will display the Main Menu This is where all control system menus are loc...

Page 42: ...on 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 press the Operat...

Page 43: ...ries greatly from the Operating Set Point setting These settings are adjusted in the same way described for the Operating Set Point and Differential Adjustment Operating Set Point 140 F Differential 8...

Page 44: ...mulated time the control system has been in the heating operating state burner run time Total Cycle Count Total accumulated count of heating cycles Config CRC A number associated with the configuratio...

Page 45: ...t event will replace the oldest Press the Operational Button under VIEW to view details for each Fault or Alert message stored NOTE fault history memory is cleared after 30 days 1 Blocked Air Intake A...

Page 46: ...m Show 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 hig...

Page 47: ...etween 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 all be present for...

Page 48: ...conditions will cause a reaction between the anode rod and the water The most common complaint associated with the anode rod is a rotten egg smell produced from the presence of hydrogen sulfide gas d...

Page 49: ...n the water heater see Draining and Flushing on page 49 Replace the Temperature Pressure Relief Valve with a properly rated sized new one see Temperature Pressure Relief Valve on Page 22 for instructi...

Page 50: ...nd terminate it to an adequate drain 5 Ensure the drain hose is secured before and during the entire flushing procedure Flushing is performed with system water pressure applied to the water heater 6 O...

Page 51: ...tting G Leakage from recirculation plug or pipe connection H Leakage from the plug under the cleanout cover I Leakage from the temperature probe connection Not shown in figure J Condensate from the ex...

Page 52: ...blower is de energized and will coast to a stop 12 The control system now enters the standby mode while continuing to monitor the internal storage tank water temperature and the state of other system...

Page 53: ...le is activated Blower Prover switch contacts confirmed closed by control system Igniter is energized 24 V Gas Valve is energized gas flows to Main Burner Is flame sensed at the Main Burner control sy...

Page 54: ...l Number and Series Number available This information can be found on the rating plate affixed to the water heater For more information or technical support call the phone number s listed on the back...

Page 55: ...eater before performing any service Electrical Shock Hazard Label all wires prior to disconnecting when performing service Wiring errors can cause improper and dangerous operation Verify proper operat...

Page 56: ...nce Switch should be closed continuity 0 ohms Replace switch if open no continuity If Blocked Intake error occurs when blower is running check for restrictions in intake pipe including intake air conn...

Page 57: ...TION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION VERIFY PROPER OPERATION AFTER SERVICING Figure 42 WIRING SCHEMATIC WIRING D...

Page 58: ...58 NOTES...

Page 59: ...59 NOTES...

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