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7

Thank You for purchasing this water heater. Properly installed and 

maintained, it should give you years of trouble free service.

ABBREVIATIONS USED

Abbreviations found in this Instruction Manual include :
•  ANSI - American National Standards Institute

•  ASME - American Society of Mechanical Engineers

•  AHRI - Air-Conditioning, Heating and Refrigeration Institute

•  NEC - National Electrical Code

•  NFPA - National Fire Protection Association

•  CSA - Canadian Standards Association

QUALIFICATIONS

QUALIFIED INSTALLER OR SERVICE AGENCY

Installation  and  service  of  this  water  heater  requires  ability 

equivalent to that of a Qualified Agency (as defined by ANSI below) 

in the field involved. Installation skills such as plumbing, air supply, 

venting, gas supply and electrical supply are required in addition to 

electrical testing skills when performing service.

ANSI Z223.1 2006 Sec. 3.3.83:

  “Qualified  Agency”  -  “Any 

individual,  firm,  corporation  or  company  that  either  in  person  or 

through a representative is engaged in and is responsible for (a) 

the  installation,  testing  or  replacement  of  gas  piping  or  (b)  the 

connection,  installation,  testing,  repair  or  servicing  of  appliances 

and equipment; that is experienced in such work; that is familiar 

with  all  precautions  required;  and  that  has  complied  with  all  the 

requirements of the authority having jurisdiction.”

If you are not qualified (as defined by ANSI above) and licensed or 

certified as required by the authority having jurisdiction to perform 

a  given  task  do  not  attempt  to  perform  any  of  the  procedures 

described in this manual. If you do not understand the instructions 

given  in  this  manual  do  not  attempt  to  perform  any  procedures 

outlined in this manual.

PREPARING FOR THE INSTALLATION

1.  Read the entire manual before attempting to install or operate 

the  water  heater.  Pay  close  attention  to  the  General  Safety 

Information on Page 4 through Page 6. If you don’t follow the 

safety rules, the water heater may not operate safely. It could 

cause property damage, injury and/or death.

This manual contains instructions for the installation, operation, 

and maintenance of the water heater. It also contains warnings 

throughout  the  manual  that  you  must  read  and  be  aware  of. 

All  warnings  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  the  installer  with  a 

reference. It is essential that all venting, water piping, gas piping 

and wiring be installed as shown.

Particular  attention  should  be  given  to  the  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 identified in 

Features And Components on Page10 & Page 11 in this manual. 

Use this reference to locate and identify various components on 

the water heater.

See  the  Installation  Checklist  and  Troubleshooting  on  page 

52.  By  using  this  checklist  the  user  may  be  able  to  make 

minor operational adjustments and avoid unnecessary service 

calls. However, service and diagnostic procedures should only 

be performed by a Qualified Service Agency.

NOTE:

  Costs  to  correct  installation  errors  are  not  covered 

under the limited warranty.

2.  Be sure to turn off power when working on or near the electrical 

system of the water heater. Never touch electrical components 

with wet hands or when standing in water.

3.  The  installation  must  conform  to  all  instructions  contained  in 

this  manual  and  the  local  code  authority  having  jurisdiction. 

These shall be carefully followed in all cases. Authorities having 

jurisdiction  should  be  consulted  before  installation  begins  if 

there are any questions regarding compliance with local, state 

or national codes.

In the absence of local codes, the installation must comply 

with the current editions of the National Fuel Gas Code, ANSI 

Z223.1/NFPA 54 and the National Electrical Code, NFPA 70. 

All  documents  are  available  from  the  Canadian  Standards 

Association, 8501 East Pleasant Valley Road, Cleveland, OH 

44131. NFPA documents are also available from the National 

Fire  Protection  Association,  1  Batterymarch  Park,  Quincy, 

MA 02269.

4.  If  after  reading  this  manual  you  have  any  questions  or 

do  not  understand  any  portion  of  the  instructions,  call 

the toll free number on the back cover of this manual for 

technical assistance. In order to expedite your request, 

please  have  the  full  Model,  Serial  and  Series  number 

of  the  water  heater  you  are  working  with  available  for 

the technician. This information is located on the water 

heater’s rating plate.

5.  Carefully  plan  the  placement  of  the  water  heater.  Examine 

the  location  to  ensure  that  it  complies  with  the  requirements 

in Locating The Water Heater on Page 14 and the Rough In 

Dimensions on Page 8.

.

6.  For installation in California this water heater must be braced 

or anchored to avoid falling or moving during an earthquake. 

See  instructions  for  correct  installation  procedures. 

Instructions  may  be  obtained  from  California  Office  of  the 

State Architect, 1102 Q Street, Suite 5100, Sacramento, CA 

95811.

7.  Massachusetts Code requires this water heater to be installed in 

accordance with Massachusetts 248-CMR 2.00: State Plumbing 

Code and 248-CMR 5. See Commonwealth of Massachusetts 

on Page 24.

INTRODUCTION

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...

Page 60: ...60...

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