Vanguard Heating VN12, VN6A installation manual Connecting to GAS Supply

Page 9

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. 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 10, page 10).

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 10. 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.

Continued

9

Image 9
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 SystemInstallation Items Check GAS TypeLocating Heater Ceiling Installing Heater to WallFloor Marking Screw LocationsFolding Anchor Installing Two Mounting ScrewsPlacing Heater On Mounting Screws Connecting to GAS Supply Checking GAS Connections Pressure Testing GAS Supply Piping SystemManual Shutoff Valve Pressure Testing Heater GAS ConnectionsFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Pilot Burner Patterns To Select Heating LevelInspecting Burner Manual Lighting ProcedureTo Turn OFF GAS to Appliance Pilot Flame PatternBurner Flame Pattern Cleaning and MaintenanceODS/PILOT and Burner Orifice CabinetObserved Possible Problem Cause Remedy Trouble ShootingCleaning Observed Possible Problem Cause Remedy Ing statement at Technical ServiceTop VN12Parts Not Under Warranty Parts Under WarrantyManual Shutoff Valve GA5010VN6A Parts ListVN12 Illustrated Parts BreakdownLimited Warranty Vanguard VENT-FREE Residential GAS Heaters Warranty Information