Desa VP10A, VP1000BTA VN10A Checking GAS Connections, Pressure Testing Gas Supply Piping System

Page 9

INSTALLATION

Connecting To Gas Supply (Cont.) Checking Gas Connections

9

INSTALLATION

Continued

We recommend that you install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. 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.

IMPORTANT: Hold pressure regulator with wrench when con- necting it to gas piping and/or fittings. Do not over tighten pipe connection to regulator. The regulator body could be damaged.

CAUTION: For propane/LP gas, make sure exter- nal regulator has been installed between propane/LP supply and heater. See guidelines under Connecting to Gas Supply, page 8.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1.

Disconnect appliance with its appliance main gas valve (control

 

valve) and equipment shutoff valve from gas supply piping sys-

 

tem. Pressures in excess of 1/2 psig will damage heater regulator.

2.

Cap off open end of gas pipe where equipment shutoff valve

3/8" NPT Pipe Nipple

Ground

Joint Union

Equipment

Shutoff Valve*

Natural Gas From Gas Meter (4" W.C. to 10.5" W.C. Pressure)

Propane/LP

From External

Regulator3" (11" W.C. to 14" Minimum

W.C. Pressure)

Figure 13 - Gas Connection

Pressure Regulator

Heater

Cabinet

Tee Joint

 

 

 

Reducer

 

Test

Bushing to

 

 

Gauge

1/8" NPT

 

 

Connection*

1/8" NPT

 

 

 

Plug Tap

 

 

Tee

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Joint

 

 

Sediment

Pipe

 

 

 

 

 

 

Trap

Nipple

 

 

 

 

 

 

 

Cap

 

 

 

 

 

 

 

 

 

 

 

 

was connected.

3.

Pressurize supply piping system by either opening propane/LP

 

supply tank valve for propane/LP gas or opening main gas valve

 

located on or near gas meter for natural gas, or using com-

 

pressed air.

4.

Check all joints of gas supply piping system. Apply a non-

 

corrosive leak detection fluid to all joints. Bubbles forming

 

show a leak.

5.

Correct all leaks at once.

6.

Reconnect heater and equipment shutoff valve to gas supply.

 

Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Figure 14).

2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.

Equipment

 

Open

 

Shutoff Valve

 

 

*A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessory, page 28.

Closed

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

Figure 14 - Equipment Shutoff Valve

For more information, visit www.desatech.com

110720-01A

Image 9
Contents What to do if YOU Smell GAS VENT-FREE GAS HeaterSafety Information Table of ContentsUnpacking Product FeaturesProduct Identification Local CodesProviding Adequate Ventilation AIR for Combustion and VentilationDetermining FRESH-AIR Flow for Heater Location Confined and Unconfined SpaceVentilation AIR for CombustionVentilation AIR Ventilation Air From Inside BuildingInstallation Items InstallationCheck GAS Type Locating HeaterInstalling Two Mounting Screws Installing Heater to WallMarking Screw Locations Placing Heater On Mounting ScrewsInstalling Bottom Mounting Screw Connecting to GAS SupplyChecking GAS Connections Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections Operating HeaterLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureShutting Off Heater Shutting Off Burner Only pilot stays litBurner Patterns To Select Heating LevelOFF Position Shown Thermostat Control Operation Inspecting BurnerPilot Flame Pattern Burner Flame Pattern Blue Flame ModelsCleaning Burner Pilot AIR Inlet Hole Cleaning MaintenanceBurner Flame Pattern Infrared Models ODS/PILOT and Burner OrificeObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at VP600BA VP5D VP10A VP1000BTA SpecificationsVN600BA VP600BA Pilot Illustrated Parts BreakdownKEY Part Number for VP600BA VN600BA Description QTY Parts ListVP10A VN10A KEY Part Number VP10A VN10A Description QTY VP5D VN6D ODS/PILOT KEY Part Number VP5D VN6D Description QTY VP1000BTA VN1000BTA Pilot KEY Part Number VP1000BTA VN1000BTA Description QTY Technical Service Replacement PartsService Publications AccessoryOwners Registration Form Postage Required Baltimore Electric Parts CentralsWarranty Information

VP600BA, VN600BA, VN1000BTA, VP1000BTA, VN10A, VP10A, VN6D, VP5D, VP1000BTA VN10A, VP10A specifications

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