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GTS HUMIDIFIER LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Warnings and cautions
WARNING
Carbon monoxide, fire, explosion, and electrical shock hazards (continued)
• With the exception of sealed combustion units, do not locate units in tightly sealed rooms or small compartments
without provision for adequate combustion air and venting. Room air combustion must be supplied through a
minimum of two permanent openings in the wall, with at least one near the bottom. See "Combustion and ventilation
air" for additional information.
• Do not install the humidifier indoor directly on carpeting, tile, or other combustible material other than wood
flooring. Outdoor units may be installed directly on combustible flooring or, in the U.S., on wood flooring or Class
A, Class B or Class C roof covering materials.
• Remove all shipping brackets and materials before operating the humidifier.
• Do not locate humidifier in a negative pressure space. Combustion products could be suctioned from the venting.
• Humidifier flue gases must be vented to the outside atmosphere.
• Do not interfere, disable, or tamper with the devices monitoring the combustion gas discharge, including the flue
temperature and flue pressure sensors. Only authorized and trained technicians should perform any service on these
items.
• Do not interfere or tamper with any sealed components. Only authorized and trained technicians should perform
any service on these items.
• This humidifier is not intended for use by persons (including children) with reduced physical, sensory, or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the humidifier.
• The GTS humidifier LX series must be vented and supplied with combustion and ventilation air as described in this
IOM. Ensure the vent and air piping and the combustion air supply comply with these instructions regarding vent,
system, air system, and combustion air quality. Inspect finished vent and air piping thoroughly to ensure all are
airtight and comply with the instructions provided and with all requirements of applicable codes. Failure to provide
a properly installed vent and air system will cause severe personal injury or death.
• This humidifier requires a special venting system. Use only approved stainless steel, PVC, CPVC, or polypropylene
pipe and fittings listed in this IOM. Failure to comply could result in severe personal injury, death, or substantial
property damage.
• Do not connect any other appliance to the vent pipe or multiple humidifiers to a common vent pipe. Failure to
comply could result in sever personal injury, death, or substantial property damage.
• The flue gas vent shall not pass through any air duct or plenum. Do not insulate plastic flue gas vent pipe.
• Do NOT mix components from different systems. The vent system could fail, causing leakage of flue products. Mixing
of venting materials will void the warranty.
• Power supply disconnect switch must be in the off position while making wiring connections to prevent electrical
shock and equipment damage. All units must be wired in strict accordance with the wiring diagrams furnished with
this unit.
• Turn off all gas while installing the gas piping and manual shutoff valve for the humidifier.
• The appliance and its individual shut-off valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures exceeding 0.5 psig (3.5 kPa).
Continued
