CAST IRON STOVE AND BURNER SYSTEM
STOVE AND B-VENT BURNER SYSTEM INSTALLATION
Continued
CAUTION: Use only new, black iron or steel pipe. Inter-
Approved Flexible
Gas Line
3" Minimum
CSA/AGA Design- Certified Equipment Shutoff Valve with 1/8" NPT Tap*
Natural - From Gas
Meter (5" W.C. to 10.5"
W.C. Pressure )
Propane/LP - From
External Regulator (11"
W.C. to 14" W.C.
Pressure)
diameter or greater to allow proper gas volume to fireplace. If pipe is too small, undue loss of pressure will occur.
Installation must include an equipment shutoff valve, union, and plugged 1/8" NPT
Cap Pipe Nipple Tee Joint
Sediment Trap/Drip Leg
Figure 31 - Gas Connection
*The CSA/AGA
tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from burner system (see Figure 31).
Check your building codes for any special requirements for locating equipment shutoff valve to stove.
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 burner system valves.
CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.
We recommend that you install a sediment trap/drip leg in supply line as shown in Figure 31. Locate sediment trap/drip leg where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap/drip leg where trapped matter is not likely to freeze. A sediment trap traps moisture and contami- nants. This keeps them from going into burner system gas controls. If sediment trap/ drip leg is not installed or is installed wrong, burner system may not run properly.
CONNECTING STOVE AND BURNER SYSTEM TO GAS SUPPLY
Installation Items Needed
•5/16" hex socket wrench or
•sealant (resistant to propane/LP gas, not provided)
1.Open lower door panel.
2.Route flexible gas line (provided by installer) from equipment shutoff valve to burner system. Route flexible gas supply line through slot in stove bot- tom and attach to valve.
3.Attach a 45° flare union gas connector to flexible gas line from gas supply (see Figure 32). Connect flare union to flex- ible gas line attached to gas regulator of fireplace (see Figure 32).
4.Check all gas connections for leaks. See Checking Gas Connections.
Equipment
Shutoff Valve
| To Gas | |
| Supply | |
| (Natural) | |
Flexible Gas Line from | To External | |
Equipment Shutoff Valve | ||
Regulator | ||
Provided by Installer | ||
(Propane/LP) | ||
|
Figure 32 - Attaching Flexible Gas Lines Together
CHECKING GAS
CONNECTIONS
WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once.
WARNING: Never use an open flame to check for a leak. Apply commercial leak test solution to all gas joints. Bubbles forming show a leak. Correct all leaks at once.
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 systems. Pressures in excess of 1/2 psig (3.5 kPa) will damage burner system gas regulator.
2.Cap off open end of gas pipe where equipment shutoff valve was con- nected.
3.Pressurize supply piping system by ei- ther opening propane/LP supply tank valve for propane/LP gas burner sys- tem or opening main gas valve located on or near gas meter for natural gas burner system, or using compressed air.
For more information, visit www.desatech.com | 14 | 107600 |