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Qualified Installing Agency
Installation and replacement of gas piping, gas utilization
equipment or accessories and repair and servicing of equip-
ment shall be performed by a qualified agency. The term
“qualified agency” means any individual, firm, corporation
or company which either in person or through a representa-
tive is engaged in and is responsible for (1) the installation
or replacement of gas piping or (2) the connection, instal-
lation, repair or servicing of equipment, who is experienced
in such work, familiar with all precautions required and has
complied with all the requirements of the authority having
jurisdiction.
State of Massachusetts:
The installation must be made
by a licensed plumber or gas fitter in the Commonwealth
of Massachusetts. The state of Massachusetts requires
that a flexible appliance connector cannot exceed 3ft
(914.4mm) in length.
The installation must conform with local codes or, in the
absence of local codes, with the
National Fuel Gas Code
ANSI Z223.1/NFPA 54* Natural Gas and Propane Installa-
tion Code, CSA B149.1.
*Available from the American National Standards Institute, Inc., 11 West
42nd St., New York, N.Y. 10036.
• The vent terminal for HWDV081 models shall be lo-
cated at least 6in (150mm) from any air opening into a
building.
• The vent terminal for HWDV150 models shall be locat-
ed at least 9in (228.6mm) from any air opening into a
building.
• The bottom of the vent terminal on all models shall be
located at least 12in (304.8mm) above grade. See ter-
mination clearance chart on page 14.
WARNING: The nearest point of the vent cap
should be a minimum horizontal distance of 6ft
(1.83m) from any pressure regulator. In case of regu-
lator malfunction, the 6ft (1.83m) distance will reduce
the chance of gas entering the vent cap.
Always consult your local Building Department regarding
regulations, codes or ordinances which apply to the instal-
lation of a direct vent wall furnace.
Instructions to Installer
1. Installer must leave instruction manual with owner after
installation.
2. Installer must have owner fill out and mail warranty card
supplied with furnace.
3. Installer should show owner how to start and operate
furnace and thermostat.
Warning:
Any change to this furnace or its control can be dan-
gerous. This is a heating appliance and any panel,
door or guard removed for servicing an appliance
must be replaced prior to operating the appliance.
General Information
This furnace is design certified in accordance with American
National Standard/CSA Standard Z21.86 and CSA 2.32 by
Underwriters Laboratory as a direct vent wall furnace to be
installed according to these instructions.
Any alteration of the original design, installed other
than as shown in these instructions or use with a type
of gas not shown on the rating plate is the responsibil-
ity of the person and company making the change.
Notice:
During initial firing of this unit, its paint will bake
out and smoke will occur. To prevent triggering of smoke
alarms, ventilate the room in which the unit is installed.
Installation in Residential Garages
Gas utilization equipment in residential garages shall be in-
stalled so that all burners and burner ignition devices are
located not less than 18in (457.2mm) above the floor. Such
equipment shall be located, or protected, so it is not subject
to physical damage by a moving vehicle.
Figure 1
INTRODUCTION
