Desa LCF24, LCF18 Checking GAS Connections, Test Pressures In Excess Of 1/2 Psig 3.5 kPa

INSTALLATION

Continued

CAUTION: Use only new, black iron or steel pipe. Inter- nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to log set. If pipe is too small, undue loss of volume will occur.

Installation must include a 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 log set (see Figure 4).

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.

Approved Flexible Gas Hose (if allowed by local codes)

CSA Design-Certified Equipment Shutoff Valve With 1/8" NPT Tap*

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 a clogged burner injector.

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 4. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and appliance. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into log set controls. If sediment trap is not installed or is installed wrong, log set may not run properly.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.

WARNING:Neveruseanopen flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak. Correct all leaks

3" Minimum

From Gas Meter (5" W.C.** to 10.5" W.C. Pressure)

at once.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

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

Cap Pipe Nipple Tee Joint

Sediment Trap

Figure 4 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 18.

** Minimum inlet pressure for purpose of input adjustment.

1.Disconnect log set and its individual equipment shutoff valve from gas supply piping system.

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

3.Pressurize supply piping system by either us- ing compressed air or opening main gas valve located on or near gas meter.

4.Check all joints of gas supply piping system. Apply noncorrosive leak detection fluid to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect log set and equipment shutoff valve to gas supply. Check reconnected fit- tings for leaks.

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