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Heat & Glo • PIER/ST/L&RCOR-HVB-CE • 2068-900 Rev. H • 6/07
33
• 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.
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.
!
Figure 29. Gas Supply Line
USE A WRENCH ON
SHUT-OFF VALVE
WHEN TIGHTENING
GAS LINE.
MANUAL
SHUT-OFF
VA LVE
FLEX CONNECTOR
GAS VALVE
GAS LINE
ACCESS
CONTROL VALVE
WARNING: DO NOT USE AN OPEN FLAME
TO CHECK FOR GAS LEAKS.
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
m
3
/
h
.24
m
3
/
h
.16
m
3
/
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
Table 1