Operating instructions

zontal pitch and determine there is no blockage or restriction,

leakage, corrosion and other deficiencies which could cause an

unsafe condition.

Insofar as ispractical, close allbuilding doors and windows and

alldoors between the space in which the appliancesremaining

connected to the common venting systemare located and other

spacesof the building. Turn on clothes dryers and any appli-

ance not connected to the common venting system.Turn on

any exhaust fans, such as range hoods and bathroom exhausts,

so they willoperate at maximum speed. Closefireplacedamp-

ers.

4. Place in operation the appliance being inspected. Follow the

lighting instructions. Adjust thermostat so appliance will operate

continuously.

5. Test for spillage at the hood relief opening after 5 minutes of

main burner operation.

G. After it has been determined that each appliance remaining con-

nected tothe commonventingsystemproperlyventswhen tested

asoutlinedabove,returndoors,windows,exhaustfans,fireplace

dampers and any other gas-burningapplianceto their previous

conditionsof use.

Any improper operation of the common venting systemshould

be corrected so the installation conforms with the National

FuelGasCode, ANSIZ223.l-latest revision.When resizing any

portion of the common venting system, the common venting

systemshould be resized to approach the minimum size as

determined usingthe appropriate tables in the National Fuel

GasCode,ANSI Z223.l-latest revision.In Canada, followCSA

B149.1or.2 Installation Codes.

NOTE: It is recommended that existing gasvents be

checkedto be sure they meet local codes.