Desa NATURAL GAS LOG HEATER Owner's Operation And Installation Manual

Desa NATURAL GAS LOG HEATER Owner's Operation And Installation Manual Manual pdf 16 page image

16101308INSTALLINGContinuedCONNECTING TO GAS SUPPLYNOTICEA qualified service person must connect heater to gas supply.Follow all local codes.Installation Items NeededBefore installing heater, make sure you have the items listed below.• piping (check local codes)• sealant (resistant to LP gas)• manual shutoff valve *• test gauge connection *• sediment trap• tee joint• pipe wrench* An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptablealternative to test gauge connection. Purchase the optional A.G.A. design-certified manualshutoff valve from your dealer. See Accessories, page 33.WARNING ICON G 001CAUTIONUse only new, black iron or steel pipe. Internally-tinned coppertubing may be used in certain areas. Check your local codes. Usepipe of 1/2" diameter or greater to allow proper gas volume toheater. If pipe is too small, undue loss of pressure will occur.Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap.Locate NPT tap within reach for test gauge hook up. NPT tap must be upstreamfrom heater (see Figure 13, page 17).Apply pipe joint sealant lightly to male threads. This will prevent excess sealantfrom going into pipe. Excess sealant in pipe could result in clogged heater valves.WARNING ICON G 001CAUTIONUse pipe joint sealant that is resistant to liquid petroleum (LP) gas.Install sediment trap in supply line as shown in Figure 13, page 17. Locate sedi-ment trap where it is within reach for cleaning. Locate sediment trap where trappedmatter is not likely to freeze. A sediment trap traps moisture and contaminants. Thiskeeps them from going into heater controls. If sediment trap is not installed or isinstalled wrong, heater may not run properly.WARNING ICON G 001WARNINGNever connect heater to private (non-utility) gas wells. This gas iscommonly known as well-head gas.