FIREPLACE MANUFACTURERS INCORPORATED
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes.
Installation Items Needed
Before installing heater, make sure you have the items listed below.
Installation must include a manual 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 13).
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 heater valves.
CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.
Install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. Locate sedi- ment 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.
•piping (check local codes)
•sealant (resistant to propane/LP gas)
•manual shutoff valve *
A.G.A.
Manual Shutoff Valve With
1/8" NPT Tap
•test gauge connection *
•sediment trap
•tee joint
•pipe wrench
*An A.G.A.
WARNING: Never connect heater to private
CAUTION: Use only new, black iron or steel pipe. Inter-
From Gas Meter (5" W.C.** to 10.5" W.C. Pressure)
Tee Joint |
|
Pipe | 3" Minimum |
Nipple |
|
Cap |
|
Sediment
Trap
Approved Flexible Gas Hose (if allowed by local codes)
Gas
Regulator
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 pressure will occur.
Figure 13 - Gas Connection
* Minimum inlet pressure for purpose of input adjustment.
12 | 105191 |
