Specifications

6
INSTALLATION
Precautions
• The installation must conform to the requirements of
the authority having jurisdiction or, in the absence of
such requirements, to the National Fuel Gas Code,
ANSI Z223.1 (latest edition). In Canada, the installation
of this unit must comply with local plumbing or waste
water codes and other applicable codes and with the
current code CAN/CGS-B149.1 "Installation Code for
Natural Gas Burning Appliances and Equipment" or
CAN/CGA-B149.2, "Installation Code for Propane
Burning Applications and Equipment."
• Do not install in potentially explosive or flammable
atmospheres laden with grain dust, sawdust, or similar
airborne materials.
• Installation of humidifier in high humidity or salt water
atmospheres will cause accelerated corrosion, resulting
in a reduction of the normal life-span of the unit.
• To prevent premature heat exchanger failure, do not
locate ANY gas-fired unit in areas where chlorinated,
halogenated or acid vapors are present in the atmo-
sphere.
• Locate the humidifier in an area clear of combustible
materials, gasoline, and other flammable vapors and
liquids.
• Do not locate units in tightly sealed rooms or small
compartments without provision for adequate combustion
air and venting. Combustion air must be supplied to the
room through a minimum of two permanent openings in
the wall, at least one near the bottom. The openings
should provide one square inch of free area per 1000
BTUH input rating of the unit with a minimum of 100
square inches for each opening, whichever is greater.
See table 10-1 and information on pages 10 and 11 for
additional details.
Required Clearance:
For recommended service and maintenance purposes the
following clearances should be maintained:
• Heat exchanger removal - front, 30"
• Burner shroud removal - front, 24"
• Control cabinet - left side, 36"
• Drain valve - right side, 12"
• Clean-out tray - rear, 30"
(not applicable with DI/RO systems)
• Cover removal - top, 18"
• Distance from vent box to combustible
floor - 30"
GTS clearance recommendations
Control cabinet, 36"
Cover, 18"
Cleanout tray, 30"
Drain valve, 12"
Heat exchanger, 30"
30"
Burner
shroud,
24"
Floor
GTS-IOM-1298.pdf 6 11/17/2009 3:57:02 PM