Desa T installation manual Connecting to GAS Supply, External Regulator With Vent Pointing Down

Page 13

INSTALLATION

Connecting To Gas Supply

13

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pres- sure regulator.

WARNING: A qualified service person must con- nect heater to gas supply. Follow all local codes.

CAUTION: Never connect propane/LP fireplace directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and propane/LP supply.

WARNING: Never connect natural gas fireplace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

external regulator (supplied by installer)

piping (check local codes)

sealant (resistant to propane/LP gas)

equipment shutoff valve *

test gauge connection *

sediment trap

tee joint

pipe wrench

*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 Accessories, page 44.

For propane/LP units, the installer must supply an external regula- tor. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install external regulator with the vent point- ing down as shown in Figure 16. Pointing the vent down protects it from freezing rain or sleet.

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 of 1/2" diam- eter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of volume will occur.

Installation must include an equipment shutoff valve, 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 Figures 17 or 18 page 14, depending on your model).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Check your building codes for any special requirements for locating equipment shutoff valve to fireplaces.

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

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

We recommend that you install a sediment trap in supply line as shown in Figures 17 or 18 page 14, depending on your model. 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.

CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings (Variable Manually-Controlled and Thermostat-Controlled Models Only).

CAUTION: Avoid damage to gas control. Hold gas fitting with wrench when connecting it to gas piping and/or fittings (Remote-Ready Models Only).

External Regulator

Propane/LP

Supply Tank

Vent Pointing Down

Figure 16 - External Regulator With Vent Pointing Down

For morevisit www..com

107070-01F

Image 13
Contents What to do if YOU Smell GAS Unvented VENT-FREE GAS LOG HeaterSafety Information Table of ContentsSafety Information Flame-MaxBirch Logs Product IdentificationProduct Features Optional Remote Control AccessoriesLocal Codes UnpackingConfined and Unconfined Space Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallationLOG Sizing Requirements Minimum Noncombustible Material Clearances If Not Using MantelFloor Clearances Mantel ClearancesDetermining Minimum Mantel Clearance Installing Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Area of Various StandardLogs, pages 15 External Regulator With Vent Pointing Down Connecting to GAS SupplyChecking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Installing LogsInstalling Vintage Oak One-Piece Log Set Lighting Instructions Operating HeaterTo Turn OFF GAS To Appliance Manual Lighting ProcedureThermostat Control Operation Shutting Off HeaterVariable Control Operation REMOTE-READY Models For Your Safety Read Before LightingFlame Adjustment Knob ON/OFF Series Model Ghrcb Optional HAND-HELD Remote OperationThermostat Series Model Ghrctb Inspecting BurnersPilot Flame Pattern Cleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning MaintenanceBurner Primary AIR Holes Main BurnerObserved Problem Possible Cause Remedy TroubleshootingClean burner see Cleaning and Mainte Gas leak. See Warning statement For Masonry and FACTORY-BUILT Metal Fireplace Optional Positioning of Thermostat Sensing BulbThermostat-Controlled Models Only Specifications Service Hints Wiring DiagramReplacement Parts Technical ServiceVYS24NA, H24N, VYS30PA VYS30NA Illustrated Parts BreakdownODS Pilot Natural Gas ODS Pilot Propane/LP Variable MANUALLY-CONTROLLED FLAME-MAXVINTAGE OAK LOG Models Parts ListVYD36PA Parts Available not Shown ODS Pilot Natural Gas Variable MANUALLY-CONTROLLED FLAME-MAXGOLDEN OAK LOG AND1BBurner Retainer Spring VYD24NTA, VYD30PTA and VYD30NTA THERMOSTAT-CONTROLLED FLAME-MAXGOLDEN OAK LOG Models VYD36PRA and HD36PR REMOTE-READY FLAME-MAXGOLDEN OAK LOG Models VYD36NRA and HD36NR Parts List VYBD24NR, VYBD30PR and VYBD30NR REMOTE-READY FLAME-MAXBIRCH LOG Models Accessories Owners Registration Form Postage Required 107070-01F Warranty Information