INSTALLATION
INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
Connecting to Gas Supply
Checking Gas Connections
Approved Flexible Gas Hose (if allowed by local codes)
5
WARNING: A qualified service person must con- nect log set to gas supply. Follow all local codes.
Installation Items Needed
Before installing log set, make sure you have the items listed below.
•piping (check local codes)
•sealant (resistant to Propane/LP gas)
•equipment shutoff valve
•test gauge connection
•adjustable (crescent) wrench or pliers
•sediment trap
•tee joint
•pipe wrench
CAUTION: Use only new, black iron or steel pipe.
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.
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 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 log set controls. If sediment trap is not installed or is installed wrong, log set may not run properly.
CSA
Equipment Shutoff Valve
With 1/8" NPT Tap*
3" Minimum | From Gas Meter | |||
(5" W.C.** to 10.5" | ||||
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| W.C. Pressure) | ||
Cap Pipe Nipple Tee Joint | ||||
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Sediment Trap
Figure 4 - Gas Connection
*Purchase the optional CSA
** Minimum inlet pressure for purpose of input adjustment.
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: 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.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
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 using 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 fittings for leaks.
For more information, visit www.desatech.com
