GSW 72090 manual Confined Space Air Requirements for Installations

Page 10

Confined Space Air Requirements for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(a)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Installations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to Figure 6 (a), (b), (c) or (d) for proper sizing and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

location of combustion air ducts and openings. CHECK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOCAL CODES.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(a) Equipment located in confined spaces; all air from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PERMANENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPENINGS

 

 

 

inside the building.

 

 

 

CONFINED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Two permanent openings shall be provided connecting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNCONFINED

 

 

 

 

 

 

SPACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the confined space (e.g., closet, small room) with the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPACE

 

 

 

unconfined space. Each opening shall have a free area

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of one square inch per 1,000 BTU/hour input (22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cm²/kW) of all appliances in the confined space, but not

 

 

 

 

 

 

 

EQUIPMENT LOCATED IN CONFINED SPACES;

 

 

 

 

 

 

 

less than 100 square inches (645 cm²). The top open-

 

 

 

 

 

 

 

ALL AIR FROM INSIDE THE BUILDING.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ing shall commence within 300mm (12 in.) of the top of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(b)

 

 

 

 

 

COMBUSTION

 

 

 

 

 

 

 

 

PERMANENT

 

 

space and the bottom opening shall commence within

 

 

 

 

 

 

 

 

 

300mm

 

VENTILATION

 

 

300mm (12 in.) of the bottom of the enclosure.

 

 

 

 

 

 

 

 

 

AIR DUCT

 

(12 in.)

 

 

 

 

 

 

 

AIR.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(b) Basement installation, equipment located in con-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(12 in.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ABOVE

 

 

 

fined spaces; all air from outdoors.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRADE

 

 

 

 

 

CONFINED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR

 

 

 

When supplying air directly from the outdoors, each

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SNOW

 

 

 

 

 

 

SPACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

opening shall have a minimum free area of one square

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

inch per 4,000 BTU/hour input (5.5 cm²/kW) of total

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRADE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

input rating of all appliances in the confined space. The

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

inlets shall be a minimum of 300mm (12 in.) above the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grade (snow) line. The top opening shall commence

 

 

 

 

 

BASEMENT INSTALLATION, EQUIPMENT LOCATED

 

 

 

 

 

 

 

within 300mm (12 in.) of the top of the confined space.

 

 

 

 

 

300mm

 

 

 

 

 

 

 

 

 

 

 

IN CONFINED SPACES; ALL AIR FROM OUTDOORS

(12 in.)

 

 

 

(c) Equipment located in confined spaces; all air from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(c)

 

 

 

 

 

 

 

 

 

 

 

OUTDOORS

 

 

 

 

 

outdoors.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIR DUCT

 

 

 

When supplying air directly from the outdoors using hor-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

izontal ducting, each opening shall have a free mini-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300mm (12 in.)

 

 

mum area of one square inch per 2,000 BTU/hour (11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cm²/kW) of total input rating of all appliances in the con-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fined space.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(d) Equipment located in confined spaces; all air from

 

 

CONFINED

 

 

 

 

 

 

 

 

 

 

 

 

 

VENTILATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMBUSTION

 

 

 

 

 

 

SPACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

outdoors through ventilated attic.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When supplying air directly through vertical ducting,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

each opening shall have a free minimum area of one

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

square inch per 4,000 BTU/hour (5.5 cm²/kW) of total

 

 

 

 

 

 

 

EQUIPMENT LOCATED IN CONFINED

 

 

 

300mm (12 in.)

 

 

 

input rating of all appliances in the confined space.

 

 

 

 

 

 

 

SPACES; ALL AIR FROM OUTDOORS.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(d)

 

 

 

 

 

ATTIC LOUVERS TO OUTDOORS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INLET AIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DUCT

 

 

 

 

 

 

 

 

 

 

CONFINED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Burn Hazard

 

 

 

 

 

 

 

 

 

 

300mm (12 in.)

 

 

 

 

 

 

 

 

Do not touch vent.

 

 

 

 

EQUIPMENT LOCATED IN CONFINED SPACES; ALL AIR

 

 

 

 

 

 

 

 

Doing so can result in

 

 

 

 

 

 

 

FROM OUTDOORS THROUGH VENTILATED ATTIC.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 6

Combustion Air Supply Openings And Ducts

 

burns.

 

 

 

 

 

 

 

 

 

 

(U.S.A.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 10

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Page 9 Page 11
Image 10
Page 9 Page 11
Contents For Your Safety What to do if YOU Smell GASPage IX Repair Parts Illustration Viii Troubleshooting GuideLimited Warranty For Installations in the United States Introduction II SafetyFor Installations in Canada User ResponsibilitiesSafety Warning Carbon Monoxide Safety Warning Flammable VapoursSafety Warning Scalding Backflow PreventionLocation Requirements Clearances and AccessibilityEarthquake Zones Gas Supply Failure to Properly Install this Heater MAYResult in a Fire Hazard Gas Pressure Gas Leak TestingGas line purging Air Requirements Confined Space Air Requirements for Canadian InstallationsLocal Codes Confined Space Air Requirements for Installations Exhaust Venting Water SupplyDo not plug valve Valve is dripping or leaking, have aLicensed plumber repair it Do not remove valveTemperature And Pressure Relief Valve Installations CheckDischarge Line IV Operating Instructions Water Temperature Regulation Temperature AdjustmentLighting Instructions Robertshaw 110R What to do if YOU Smell GASLighting Instructions Robertshaw 220R Lighting Instructions White-Rodgers 37C AvantChecking the Draft Operation Burner FlamesEmergency Shut Down Operating ConditionsDraining and Flushing VI MaintenancePeriodic Inspection Resetting and Replacing the Safety TCO Switch External Cleaning Flame-arresterTemperature and Pressure Relief Valve VII Combo Heating System RequirementsViii Troubleshooting Guide Problem Possible Causes CorrectionThermostat Fails to Shut IX Repair Parts Illustration Repair PartsLimited Warranty WHO is CoveredHOW the Original Owner can Make a Warranty Claim

72090 specifications

The GSW 72090 is a remarkable addition to the world of modern heating solutions, designed to provide efficient and effective space heating. It epitomizes advanced technology, reliability, and user-centric design, making it an ideal choice for homes and commercial spaces alike.

One of the main features of the GSW 72090 is its impressive heating capacity. Engineered to deliver optimal warmth, it can efficiently heat larger areas, ensuring that spaces remain comfortable even during the coldest months. The unit’s high-grade alloy construction enhances durability and helps maintain consistent performance over time.

A vital technology integrated into the GSW 72090 is its modulating control system. This system intelligently adjusts the temperature output based on the current heating demand, optimizing energy usage and contributing to lower utility bills. This efficiency not only benefits the consumer but also has a positive impact on the environment by reducing greenhouse gas emissions.

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Incorporating safety features is another key characteristic of the GSW 72090. It includes overheat protection, which automatically turns the unit off if it detects excessive temperatures, ensuring a safe environment for occupants. Additionally, the product is constructed with materials that are resistant to corrosion and wear, enhancing longevity.

As an environmentally conscious option, the GSW 72090 is designed to comply with stringent energy efficiency regulations. Its performance not only meets but often exceeds the required standards, making it a smart choice for those looking to reduce their carbon footprint.

Overall, the GSW 72090 stands out due to its combination of advanced technologies, user-friendly features, aesthetic appeal, and commitment to safety and efficiency. Its multi-faceted capabilities make it a prime option for anyone seeking reliable and effective heating solutions in their home or business.
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