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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 fi nished grade in the 
area of the venting, including but not limited to decks and porches, the following requirements shall be satisfi ed: 

INSTALLATION OF CARBON MONOXIDE DETECTORS

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

fueled equipment, the installing plumber or gasfi tter shall observe that a hard wired carbon monoxide detector with an alarm 
and battery back-up is installed on the fl oor level where the gas equipment is to be installed. In addition, the installing plumber 
or gasfi tter shall 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 shall 
be the responsibility of the property owner to secure the services of qualifi ed 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 fl oor level.

In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall 
have a period of thirty (30) days to comply with the above requirements provided that during said thirty (30) day period, a bat-
tery operated carbon monoxide detector with an alarm shall be installed.

APPROVED CARBON MONOXIDE DETECTORS

  Each carbon monoxide detector as required in accordance with the above 

provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and CSA certifi ed. 

SIGNAGE 

A metal or plastic identifi cation plate shall 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 appli-
ance 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 OBSTRUCTIONS.”

INSPECTION 

 The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall 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 shall 
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 fl ue gases, 
but identifi es “special venting systems,” the following requirements shall be satisfi ed by the manufacturer:

1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
 instructions; and 

2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall 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 shall remain with the appliance or 
equipment at the completion of the installation. 

INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS

Содержание POWER DIRECT VENTED GAS MODELS

Страница 1: ...PURCHASED IF YOU ARE UNSUCCESSFUL CONTACT RESIDENTIAL TECHNICAL ASSISTANCE AT 1 615 889 8900 OR VIA E MAIL AT 2TECH LOCHINVAR COM RESIDENTIAL GAS WATER HEATERS For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER GAMA certification applies to all residential gas water heaters with capacities of 20 to 100 gallons with input rating of 75 000 BTU Hr or less 300 Maddox Simpson Park...

Страница 2: ...ductive harm This appliance can cause low level exposure to some of the substances included in the act IMPORTANT DEFINITIONS Qualified Installer A qualified installer must have ability equivalent to a licensed tradesman in the fields of plumbing air supply venting and gas supply including a thorough understanding of the requirements of the National Fuel Gas Code as it relates to the installation o...

Страница 3: ...3 ...

Страница 4: ... and fires see Figures 1 and 2 Examine the location to ensure the water heater complies with the Locating the New Water Heater section in this manual 6 For California installation this water heater must be braced anchored or strapped to avoid falling or moving during an earthquake See instructions for correct installation procedures Instructions may be obtained from California Office of the State ...

Страница 5: ...ntally vented gas fueled heating appli ance 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 OBSTRUCTIONS INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless upon inspection the inspector observes carbon monoxide detectors and si...

Страница 6: ...e Relief Valve O Flue P Flue Baffle Assembly Q Insulation R Rating Plate S Gas Supply T Manual Gas Shut off Valve U Ground Joint Union V Drip Leg Sediment Trap W Drain Valve X Gas Control Valve Thermostat Y Metal Drain Pan Z Inner Door AA Outer Door BB HSI Burner Assembly CC FV Sensor Assembly TEMPERATURE INDICATORS TEMPERATURE ADJUSTMENT BUTTONS CAUTION 115 VAC CONTROL HARNESS INSIDE OUTER JACKET...

Страница 7: ...rly children the infirm or physically mentally disabled If anyone using hot water in your home fits into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap then you must take special precautions In addition to using the lowest possible temperature setting that satisfies your hot water needs a means such as a mixing valve should b...

Страница 8: ...that trigger an alarm or turn off the incoming water to the water heater when leakage is detected Sensors mounted in the metal drain pan that turn off the water supply to the entire home when water is detected in the drain pan Watersupplyshut offdevicesthatactivatebasedonthewaterpressure differential between the cold water and hot water pipes connected to the water heater Devices that will turn of...

Страница 9: ... to provide ventilation air can result in a fire or explosion and can cause DEATH SERIOUS BODILY INJURY OR PROPERTY DAMAGE FIGURE 5 If this water heater will be used in beauty shops barber shops cleaning establishments or self service laundries with dry cleaning equipment it is imperative that the water heater or water heaters be installed so that combustion and ventilation air be taken from outsi...

Страница 10: ...The vent exhaust outlet and air inlet terminals shall terminate at least 18 45 7 cm above the roof surface see Figure 9 FIGURE 9 AIR FOR VENTILATION FOR APPLIANCES LOCATED IN CONFINED SPACES Air for ventilation should be provided if installed in a confined space Refer to the National Fuel Gas Code ANSI Z223 1 INSULATION BLANKETS Insulation blankets are available to the general public for external ...

Страница 11: ...l interfere with safe operation of the water heater Do not cover the outer door gas control valve thermostat temperature pressure relief valve or FV Sensor Do not let insulation around the gas water heater get within 8 inches of the floor access for servicing the burner Do not cover the instruction manual Keep it on the side of the water heater or nearby for future reference Do obtain new warning ...

Страница 12: ...a temperature which will satisfy space heating clothes washing dish washing cleaning and other sanitizing needs can scald and permanently injure you upon contact Some people are more likely to be permanently injured by hot water than others These include the elderly children the infirm or physically mentally disabled If anyone using hot water in your home fits into one of these groups or if there ...

Страница 13: ... the above paragraph The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater 150 psi 1 035 kPa and a discharge capacity not less than the water heater input rate as shown on the model rating plate For safe operation of the water heater the relief valve must not be removed from its designated opening nor plugged The temperature ...

Страница 14: ... to help prevent dirt and foreign materials from entering the gas control valve thermostat A flexible gas connector or a ground joint union between the shut off valve and gas control valve thermostat to permit servicing of the unit Be sure to check all the gas piping for leaks before lighting the water heater Use a soapy water solution not a match or open flame Rinse off soapy solution and wipe dr...

Страница 15: ...with water Water must flow from the hot water faucet before turning ON gas to the water heater To fill the water heater with water 1 Close the water heater drain valve by turning the handle to the right clockwise The drain valve is on the lower front of the water heater 2 Open the cold water supply valve to the water heater NOTE The cold water supply valve must be left open when the water heater i...

Страница 16: ...10 120 Vac therefore a grounded outlet must be within reach of the six 6 foot 1 8 m flexible power cord supplied with the unit see Figure 2 The power cord supplied may be used only where local codes permit If local codes do not permit the use of a flexible power supply cord a Make sure the unit is unplugged from wall outlet Remove screws and remove control box b Cut the flexible power cord leaving...

Страница 17: ... installation location for a power direct vent water heater snow accumulation and drifting should be considered in areas where applicable FIGURE 16 Horizontal runs must be securely supported at 3 1 2 foot 1 m intervals and vertical runs supported at 5 foot 1 5 m intervals FIGURE 17 VENTING THROUGH AN OUTSIDE WALL A All 75 Gallon Models In the carton is supplied 1 Two 3 inlet and outlet PVC Schedul...

Страница 18: ...nd 50 Gallon 40 000 BTU HR Models In the carton is supplied 1 Two 3 inlet and outlet PVC Schedule 40 45 vent caps All other piping must be supplied by the supplier FIGURE 20 If making an immediate horizontal run of vent off the blower one 3 PVC or ABS Schedule 40 street elbow is required for the outlet In addition one 3 PVC or ABS Schedule 40 elbow and one section of 3 PVC pipe a minimum of 3 long...

Страница 19: ...feet 1 5 m of length required in the horizontal run See Figure 25 FIGURE 25 The 3 PVC ABS or CPVC Schedule 40 vent pipe can be run from the water heater through the wall or from the wall to the water heater whichever is most convenient The vent pipe must extend a minimum of 1 1 2 4 cm through the exterior wall Extending the vent cap as far as possible from the surface of the exterior wall will hel...

Страница 20: ...THROUGH A ROOF Two 3 inlet and outlet PVC Schedule 40 45 vent caps are supplied A 5 1 5 m section of 3 CPVC Schedule 40 outlet vent pipe is supplied with 75 gallon models and a 5 1 5 m section of 3 ABS Schedule 40 outlet vent pipe is supplied with 50 gallon 65 000 Btu Hr models More may be required and must be purchased locally 1 The water heater requires its own separate venting system 2 Only 3 A...

Страница 21: ...or CPVC Components and ABS for ABS components Containers Metal or Glass to hold Primer and Cement Select the type of PVC ABS or CPVC materials to be used on the basis of their application with respect to chemical resistance pressure rating temperature characteristics etc Insertion Tool Helpful for larger diameter pipe and fittings 6 inches 15 2 cm and above PRIMER It is recommended that Tetrahydro...

Страница 22: ... if necessary Depth of entry Marking the depth of entry is a way to check if the pipe has reached the bottom of the fitting socket in Step F Measure the fitting depth and mark this distance on the pipe O D You may want to add several inches to the 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 soc...

Страница 23: ...23 ...

Страница 24: ...ble area is not available a cover should be installed over the thermostat to prevent tampering The water temperature setting was factory set at the lowest temperature Pressing the COOLER button decreases temperature and pressing the HOTTER button increases the temperature Setting the water heater temperature at 120 F 49 C Approx mark on temperature setting of gas control valve thermostat will redu...

Страница 25: ...of water grows there will be a corresponding increase in water pressure due to thermal expansion Thermal expansion can cause premature tank failure leakage This type of failure is not covered under the limited warranty Thermal expansion can also cause intermittent temperature pressure relief valve operation water discharged from the valve due to excessive pressure build up The temperature pressure...

Страница 26: ...ontact a qualified installer or service agency to replace a flooded water heater Do not attempt to repair the unit It must be replaced At least once a year a visual inspection should be made of the main burner and the hot surface igniter assembly for proper flame PERIODIC MAINTENANCE characteristics and ignition sequences This can be done by viewing the main burner operation through the Viewport o...

Страница 27: ...ON FIGURE 32B If the anode rod shows signs of either or both it should be replaced NOTE Whether re installing or replacing the anode rod check for any leaks and immediately correct if found In situations where clearance above the water heater is limited it may be necessary to bend the anode rod for removal Flexible anode rods are available for replacement In replacing the anode 1 Turn off gas supp...

Страница 28: ...restart the heater as directed in this manual If the water heater is going to be shut down for an extended period the drain valve should be left open IMPORTANT Condensation may occur when refilling the tank and should not be confused with a tank leak DRAIN VALVE WASHER REPLACEMENT See Figure 34 1 Turn OFF gas supply to water heater 2 Follow Draining instructions 3 Turning counterclockwise remove t...

Страница 29: ...lief valve may be leaking at the tank fitting F Water from a drain valve may be due to the valve being slightly opened G The drain valve may be leaking at the tank fitting H Combustion products contain water vapor which can condense on the cooler surfaces of the tank Droplets form and drip onto the burner or run on the floor This is common at the time of start up after installation and when incomi...

Страница 30: ...ntrol Valve Thermostat 28 Pressure Switch Air 29 Flue Baffle Assembly 30 Baffle Adaptor Collar Assembly 31 Optional Deluxe Horizontal Vent Kit 32 Optional 3 PVCHorizontalVentKit 75GallonOnly rating plate located above the gas control valve thermostat WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOLLOWING INFORMATION MODEL NUMBER TYPE GAS NATURAL OR PROPANE L P SERIAL NUMBER PART DESCRIPTION THIS IS ...

Страница 31: ...maximum number of elbows or maximum equivalent feet of vent or intake air pipe has not been exceeded per the installation instructions in the manual that came with the water heater 4 Ensure there are no obstructions in the vent or intake air pipe 5 The gas control valve thermostat has detected an open igniter circuit 1 Check wiring to the hot surface igniter assembly replace igniter assembly if wi...

Страница 32: ...ic check has detected the FV flammable vapor sensor is either open or shorted 1 Turn off power to the water heater Ensure all FV sensor wiring the ignitor assembly plug and the ignitor assembly socket on the bottom of the Intellivent control are making good contact Repair or replace any worn damaged components that are not making good connection 2 Replace the FV sensor 15 Self diagnostic check has...

Страница 33: ...nd gas clean burner head Combustion air path restricted Check intake venting arrangement for obstructions Not enough dilution air for proper combustion Check intake venting arrangement for obstructions CONDENSATION Water on the floor under heater See CONDENSATION section Water dripping from blower assembly Provide drip TEE to catch condensation from horizontal section of exhaust vent close to blow...

Страница 34: ...34 NOTES ...

Страница 35: ...35 NOTES ...

Страница 36: ...300 Maddox Simpson Parkway Lebanon TN 37090 Phone 615 889 8900 Fax 615 547 1000 Technical Services email 2tech lochinvar com www lochinvar com Copyright 2011 Lochinvar LLC All rights reserved ...

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