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For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed 

in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by 

the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the 

area of the venting, including but not limited to decks and porches, the following requirements should be satisfied:

 

INSTALLATION OF CARBON MONOXIDE DETECTORS

 At the time of installation of the side wall horizontal vented gas fueled 

equipment, the installing plumber or gasfitter should observe that a hard wired carbon monoxide detector with an alarm and battery 

back-up is installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter should 

observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, 

building or structure served by the sidewall horizontal vented gas fueled equipment. It should be the responsibility of the property owner 

to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired 

carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.

In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner should 

have a period of thirty (30) days to comply with the above requirements provided that during said thirty (30) day period, a battery 

operated carbon monoxide detector with an alarm should be installed.

APPROVED CARBON MONOXIDE DETECTORS

 Each carbon monoxide detector as required in accordance with the above 

provisions should comply with NFPA 720 and be ANSI/UL 2034 listed and CSA certified. 

SIGNAGE 

A metal or plastic identification plate should be permanently mounted to the exterior of the building at a minimum 

height of eight (8) feet above grade directly in line with the exhaust vent terminal for the 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.

INSPECTION 

The state or local gas inspector of the side wall horizontally vented gas fueled equipment should not approve the 

installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance 

with the provisions of 248 CMR 5.08(2)(a) 1 through 4. 

EXEMPTIONS

: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4: 

1. The equipment listed in Chapter 10 entitled Equipment Not Required To Be Vented in the most current edition of NFPA 54 

as adopted by the Board; and 

2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the 

dwelling, building, or structure used in whole or in part for residential purposes. 

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED

 When the manufacturer of Product 

Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, 

the instructions provided by the manufacturer for installation of the equipment and the venting system should include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and

2. A complete parts list for the venting system design or venting system. 

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED

 When the manufacturer 

of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue 

gases, but identifies special venting systems, the following requirements should be satisfied by the manufacturer:
1. The referenced special venting system instructions should be included with the appliance or equipment installation instructions; and 

2. The special venting systems should be Product Approved by the Board, and the instructions for that system should include 

a parts list and detailed installation instructions. 
A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting 

instructions, all parts lists for venting instructions, and/or all venting design instructions should remain with the appliance or 

 

equipment at the completion of the installation. 

INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS

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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