Specifications

CAREL gaSteam
7
2. Installation
1. The installation must conform with local building codes or, in the absence of local codes, to the ANSI
Z223.1, National Fuel Gas Code, and/or CAN/CGA B149 Installation Codes.
2. The humidifier shall not be connected to a chimney flue serving any other appliances.
3. Provide for adequate combustion and ventilation air in accordance with Sections 7.2, 7.3 or 7.4, Air for
Combustion and Ventilation, of the National Fuel Gas Code, ANSI Z223.1, or Section 5.3 of CAN/CGA
B149 Installation Codes, or applicable provisions of the local building codes. For proper and safe operation,
the appliance needs air for combustion and ventilation. Do not block or obstruct air openings on the
appliance, air openings communicating with the area in which the appliance is installed, or the space
around the appliance.
4. The required free area of supply air opening is:
11 in
2
(7,000mm
2
), for UG045
20 in
2
(13,000mm
2
), for UG090
NOTE FOR DIRECT VENT OPTION:
The combustion supply air opening is not required in the room where the appliance is installed, since the
combustion air requirements will be provided through the inlet air duct. To keep electronic components
cooled, it is required to keep the environment around the unit at room temperature.
5. Excessive exposure to contaminated combustion air will result in safety and performance related problems.
6. The appliance area must be clear and free of combustible materials, gasoline, and other flammable vapors
and liquids.
7. The appliance shall be installed so the electrical components are protected from water.
8. All surfaces are zero clearance to combustible construction.
9. Appliance shall be installed on non combustible flooring only.
Note: Some insulating materials may be combustible. Prior to installing this appliance examine the area for
insulating material. If this appliance is installed in an insulated space, it must be kept free and clear of insulating
materials. If insulation is added after the appliance is installed, it will be necessary to examine the area again.
Note: Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control which has
been under water.