HearthStone Quality Home Heating Products Inc
Tucson Model #8701
NOTE: If an optional blower is to be installed now or in the future, make sure the gas line is
installed as close to the floor as possible.
Figure 20: Gas Control Valve
G
AS
S
UPPLY
&
C
ONNECTIONS
•
NOTICE: A qualified technician must
connect the heater to the gas supply
and leak test the unit before it is
approved for use. Consult all codes.
•
WARNING:
The unit must be installed
and connected in accordance with local
codes, or in the absence of local codes,
with the most
current edition of the
National Fuel Gas Code ANSI Z223.1
(NFPA 54) or CAN/CGA B149
Installation Code.
•
NFPA Code, and Hearthstone require the
use of a dedicated sediment trap just
upstream of the unit. Damage to the
valve, or other components due to the
lack of a sediment trap are not covered
by warranty.
3" MIN.
Cap
Nipple
To Equipment
Inlet
Tee Fitting
Gas Supply
Inlet
Sediment Trap
(Typical)
G
AS
C
ONNECTIONS
The gas supply connection is made to the
Tucson’s gas control valve just inside the
left front leg of the unit using a 3/8” male
NPT fitting. The supply line should be ½”
diameter, or appropriately sized to provide a
sufficient gas supply to meet the maximum
demand of the unit without undue loss of
23037-1
24
