12
INSTALLATION
Connecting to Gas Supply (Cont.) Checking Gas Connections
INSTALLATION
Continued
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.
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.
Propane/LP Supply Tank
External
Regulator
Vent Pointing
Down
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
Figure 15 - External Regulator With Vent Pointing Down
joints. Bubbles forming show a leak. Correct all leaks at once.
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
Equipment Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible Gas Hose (if allowed by local codes)
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)
Tee Joint 
Pipe Nipple | 3" Minimum | |
Gas | ||
Cap | ||
Regulator | ||
| ||
Sediment Trap |
|
Figure 16 - Gas Connection
*Purchase the optional CSA
**Minimum inlet pressure for purpose of input adjustment.
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 by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.
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.
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