Adjustment. CHECKING GAS CONNECTIONS, Pointing Down

INSTALLATION

Continued

For propane/LP units, the installer must supply an external regulator. 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 pres- sure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 14. Pointing the vent down protects it from freezing rain or sleet.

CAUTION: Use only new, black iron or steel pipe. Inter-

We recommend that you install a sediment trap in supply line as shown in Figure 15. 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.

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 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

PROPANE/LP From External Regulator (11" W.C.** to 14" W.C. Pressure) NATURAL From Gas Meter (5" W.C.** to 10.5" W.C. Pressure)

CSA Design-

Certiﬁed Equipment

Shutoff Valve With

1/8" NPT Tap*

Gas

Regulator

must be upstream from heater (see Figure 15).

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

Check your building codes for any special re- quirements 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.

	Propane/LP	External
	Supply Tank	External
	Supply Tank	Regulator
		Regulator
	Vent
	Pointing
	Down
	Figure 14 - External Regulator With Vent
		Pointing Down

		3" Minimum
Tee	Pipe Cap		Approved Flexible
			Gas Hose (if allowed
Joint	Nipple
			by local codes)

Sediment Trap

Figure 15 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 38.

** Minimum inlet pressure for purpose of input

adjustment. CHECKING GAS CONNECTIONS

WARNING: Test all gas pip- ing and connections, internal and external to unit, for leaks after installing or servicing. Cor- rect all leaks at once.

WARNING:Neveruseanopen ﬂame to check for a leak. Apply a noncorrosive leak detection ﬂuid toalljoints.Bubblesformingshow a leak. Correct all leaks at once.