Desa CRL2718P, CRL3124P Checking GAS Connections, Pressure Testing Gas Supply Piping system

Page 12

12

INSTALLATION

Connecting to Gas Supply (Cont.) Checking Gas Connections

INSTALLATION

Continued

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 Figure 16).

IMPORTANT: Install equipment 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.

 

CSA Design-Certified

From External

Equipment Shutoff Valve

With 1/8" NPT Tap*

Regulator

 

(11" W.C.** to

Approved Flexible Gas

14" W.C.

Hose (if allowed by

Pressure)

local codes)

Tee Joint

3" Minimum

Pipe Nipple

Gas

Cap

Regulator

 

Sediment Trap

 

Figure 16 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 28.

**Minimum inlet pressure for purpose of input adjustment.

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 Figure 16. 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.

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.

CAUTION: Make sure external regulator has been installed between propane/LP supply and heater. See guidelines under Connecting to Gas Supply, page 11.

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 was connected.

3.Pressurize supply piping system by either using compressed air or opening propane/LP supply tank valve.

4.Check all joints of gas supply piping system. Apply a noncor- rosive 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.

For..com

107124-01E

Page 11 Page 13
Image 12
Page 11 Page 13
Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASTable of Contents Safety InformationProduct Identification Product Features AIR for Combustion and Ventilation Local CodesUnpacking Determining FRESH-AIR Flow for Heater Location Confined and Unconfined SpaceDetermining if You Have a Confined or Uncon- fined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Installation Check GAS TypeIf Using Mantel Minimum Noncombustible Material ClearancesDetermining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Connecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorPressure Testing Gas Supply Piping system Checking GAS ConnectionsInstalling Logs Pressure Testing Heater Gas ConnectionsDual Burner Smoky Mountain Oak Models Installing Middle Log #2 Dual Burner Premium Aged Split Oak ModelsInstalling Front Log #4 Installing Middle Log #2 CCL3930PTA Shown Dual Burner Biltmore Split Oak ModelsInstalling Crossover Log #5 CCL3930PTA Shown Installing Front Log Single Burner Seasonal Oak ModelsFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Manual Lighting Procedure Variable Control OperationTo Turn OFF GAS to Appliance Shutting Off HeaterElectrode Thermocouple Inspecting Burners Thermostat Control OperationPilot Flame Pattern Burner Primary AIR HolesCleaning Maintenance Cleaning Burner Injector Holder and Pilot AIR Inlet HoleLogs Troubleshooting Observed Problem Possible Cause RemedyFor more Visit www Com Gas leak. See Warning statement Optional Positioning of Thermostat Sensing Bulb For Masonry and Factory-built Metal FireplaceReplacement Parts AccessoriesService Hints Technical ServiceSpecifications Dual Burner Biltmore Split OAK ModelsSingle Burner Seasonal OAK Models Illustrated Parts Breakdown Variable Manually-ControlledParts List CGD3930P, CCL3018P CCL3924PCGD3018PT CGD3924PT CGD3930PT Thermostatically-Controlled Smoky Mountain Oak ModelsCGD3924PT and CGD3930PT CCL3018PT Thermostatically-Controlled Biltmore Split Oak ModelKEY Part Number CCL3018PT Description QTY CCL3924PT CCL3930PTA Thermostatically-Controlled Biltmore Split Oak ModelVariable Manually-Controlled Seasonal Oak Models Seasonal Oak Models Description QTYParts Central Owners Registration Form Postage Required 107124-01E Warranty Information Keep this Warranty
Top Page Image Contents