Gas Connections - HearthStone 8761 Owner's Manual

Hearthstone Quality Home Heating Products, Inc.
G C
AS ONNECTIONS
The gas supply connection to the Santa Fe's gas
control valve is located under the unit on the left side
and uses a 3/8" NPT fitting.
supply pipe to provide sufficient gas supply to meet
the maximum demand of the unit. The supply line
must include a manual shut-off valve and union for
disconnecting the unit for servicing.
Use of a dedicated sediment trap is required by
code, and by Hearthstone. Damage to components
caused by the lack of a sediment trap is not covered
by warranty.
Once connected to the gas supply, you must test the
gas inlet pressure, and manifold gas pressure. The
gas control valve has built in pressure taps for test
gauge connections. You must test the supply line
pressure to ensure it meets the minimum pressure
for the type of fuel in use (NG or LP).
Pressure Measurements: To measure the gas
pressures, connect a manometer to the gas inlet tap
(6) and manifold pressure tap (7) in Figure 13.
Figure 13
You must size the
SANTA FE 8761 Gas-Fired Direct Vent Heater
Gas Supply
To Equipm ent
Inlet
Nipple
Cap
Figure 14 – Typical Sediment Trap
G P A
AS RESSURE DJUSTMENT
A qualified technician must connect the heater to the
gas supply, and leak test the unit before approval for
use. Consult all applicable codes. The appliance,
and its main gas valve, must be isolated from the
gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of
the gas supply piping system at test pressures equal
to or greater than ½ psig (3.5kPa).
Inlet
Tee Fitting
3" M IN.
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