Hearth and Home Technologies PIER-HVB-CE Gas Supply Line, Gas Pressure Requirements, Natural Gas

Step 6. The Gas Supply Line

NOTE: Have the gas supply line installed in accordance with local building codes by a qualified installer approved and/or licensed as required by the locality.

NOTE: Before the first firing of the fireplace, the gas supply line should be purged of any trapped air.

NOTE: Consult local building regulations to properly size the gas supply line leading to the (Rp 1/2 in.) hook-up at the unit.

This threaded gas inlet connection is ISO 7-Rp 1/2 (BSP Rp 1/2).

To install the gas supply line:

•Locate the gas line access hole in the outer casing of the fireplace.

•The gas line may be run from either side of the fireplace provided the hole in the outer wrap does not exceed 51mm (2 in.) in diameter and it does not penetrate the actual firebox.

•Open the fireplace lower grille, insert the gas supply line through the gas line hole, and connect it to the shut-off valve.

•When attaching the pipe, support the control so that the lines are not bent or torn.

•After the gas line installation is complete, all connec- tions must be tightened and checked for leaks with a commercially-available, non-corrosive leak check solu- tion. Be sure to rinse off all leak check solution following testing.

!WARNING: DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS.

Table 1

•Insert insulation from the outside of the fireplace and pack the insulation tightly to totally seal between the pipe and the outer casing.

•At the gas line access hole the gap between the supply piping and gas access hole can be plugged with non- combustible insulation to prevent cold air infiltration.

USE A WRENCH ON

SHUT-OFF VALVE

WHEN TIGHTENING

GAS LINE.

MANUAL

SHUT-OFF

VALVE

FLEX CONNECTOR

GAS VALVE

GAS LINE	CONTROL VALVE
ACCESS

Figure 29. Gas Supply Line

Step 7. Gas Pressure Requirements

Pressure requirements for Heat & Glo gas fireplaces are shown in Table 1 below.

A tap is provided on the outlet side of the gas control for a test gauge connection to measure the manifold pressure. To measure inlet pressure, provisions must be made to attach a test gauge to the tap immediately upstream of the gas supply connection to the fireplace.

The fireplace and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of 60 mbar.

If the fireplace must be isolated from the gas supply piping system by closing an individual shut-off valve, it must be of the handle-less type.

	Natural Gas	Propane	Butane	Natural Gas
	(G20)	(G31)	(G30)	(G25)
______________________________________________________________
Inlet Pressure	20mbar	37 or 50mbar	30 or 50mbar	25mbar
Manifold Pressure	4-8.7mbar	15.7-25mbar	15.7-25mbar	4-8.7mbar
Gas Rate	.54 m3/h	.24 m3/h	.16 m3/h	.54 m3/
				h
Max.Input(NETCV)	9.6 kW	9.9 kW	7.9kW	7.8 kW
Burner Injector	DMS 33	DMS 51	DMS 53	DMS 33
Pilot Injector	51	30	30	51

Heat & Glo • PIER/ST/L&RCOR-HVB-CE • 2068-900 Rev. H • 6/07 33