Desa CGN10L, CGN6L installation manual Connecting to GAS Supply

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CONNECTING TO GAS SUPPLY

NOTICE

A qualified service person must connect heater to gas supply. Follow all local codes.

WARNING

WARNING ICON

G 001

Never connect heater to private (non-utility) gas wells. This gas is commonly known as well-head gas

IMPORTANT: Check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.

CAUTION

WARNING ICON

G 001

Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe 3/8" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Installation must include a manual shutoff valve, ground joint union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 12, page 14).

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION

WARNING ICON

G 001

Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Install sediment trap in supply line as shown in Figure 12, page 14. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualSafety Information Contents001 Safety Device Local Codes Unpacking Product FeaturesProduct Identification Piezo Ignition SystemCombustion Fresh AIR ForVentilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air from Outdoors Ventilation Air From OutdoorsInstallation Items Installing to WallCheck GAS Type Locating HeaterMarking Screw Locations Installing Heater to WallFolding Anchor Installing Two Mounting ScrewsInstalling to Wall Connecting to GAS Supply Pressure Testing GAS Supply Piping System ConnectingTo GAS Supply Checking GASChecking Pressure Testing Heater GAS ConnectionsOperating Heater For Your Safety Read Before LightingOperating HeaterPilot Flame Pattern Operating Heater Inspecting BurnerShutting Off Heater Shutting Off Burner Only pilot stays litModel CGN6 will be lower due to lower input rating Burner Flame PatternMaintenance CleaningTrouble Shooting ODS/PILOT and Burner OrificeTROUBLE- Shooting See CleaningObserved Possible Remedy Problem Cause Shut off gas supply If you smell gasDo not try to light any appliance Ing statement atTechnical ServiceHints PartsCentrals Service Publications AccessoryValve GA5010 CGN10L CGN6L KEY Part Number for Description QTY CGN6L CGN10L Parts ListKeep this Warranty Warranty Information