Desa CGN10R 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

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

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

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 ManualContents Safety Information Safety Information Safety Device Local Codes Unpacking Product FeaturesProduct Identification Piezo Ignition SystemProviding Adequate Ventilation Fresh AIR for Combustion and VentilationUnusually Tight Construction Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air from Outdoors Ventilation Air From OutdoorsCheck GAS Type Installation ItemsLocating Heater Marking Screw Locations Installing Heater to WallFolding Anchor Installing Two Mounting ScrewsPlacing Heater On Mounting Screws Connecting to GAS Supply Pressure Testing GAS Supply Piping System ConnectingTo GAS Supply Checking GAS ConnectionsManual Shutoff Valve Pressure Testing Heater GAS ConnectionsOperating Heater For Your Safety Read Before LightingPilot To Select Heating Level Operating Heater Inspecting Burner Manual Lighting ProcedureTo Turn OFF GAS to Appliance Pilot Flame PatternCorrect Burner Flame Pattern Burner Flame PatternODS/PILOT and Burner Orifice Cleaning and Maintenance Trouble ShootingCabinet Air PassagewaysTROUBLE- Shooting See CleaningMaintenance , Ing statement at TROUBLE- Shooting Technical ServiceTop Parts Under Warranty Service Hints Replacement PartsParts Not Under Warranty Parts Centrals Service Publications AccessoryValve GA5010 Illustrated Parts Breakdown Parts List CGN10RKeep this Warranty Warranty Information