Hearthstone Quality Home Heating Products, Inc.
Tucson DX/ST Model 8702
27
Gas Supply & Connections
NOTE:
Ensure the gas line is installed as close to the floor as possible to avoid interference or conflict with
a blower assembly installation.
Figure 14: Gas Control Valve
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
(see figure 15)
.
Figure 15: Sediment Trap (Typical)
