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I-UEZ (04-21) 1034347-0
GENERAL INFORMATION
This unit heater has been tested for capacity and efficiency so as to provide many years of safe and dependable
comfort providing it is properly installed and maintained. With regular maintenance, this unit will operate satisfactorily
year after year. Abuse, improper use, and/or improper maintenance can shorten the life of the appliance and create
unsafe hazards.
To achieve optimum performance and minimize equipment failure, it is recommended that periodic maintenance
be performed on this unit. The ability to properly perform maintenance on this equipment requires certain tools and
mechanical skills.
This manual applies only to the models listed. Accessories referenced may not apply to all models.
Installation should be done by a qualified agency in accordance with these instructions. The qualified service agency
installing this heater is responsible for the installation.
References
NOTE: Both this installation/operation manual and the appropriate venting instructions are shipped
with the heater. Verify that the literature is correct for the heater being installed. If either manual is
missing or incorrect, contact your distributor before beginning installation.
Important Safety Information
Please read all information in this manual thoroughly and become familiar with the capabilities and use of your
appliance before attempting to operate or maintain this unit. Pay attention to all dangers, warnings, cautions, and
notes highlighted in this manual. Safety markings should not be ignored and are used frequently throughout to
designate a degree or level of seriousness.
DANGER: A danger statement describes a potentially hazardous situation that if not avoided, will result in severe
personal injury or death and/or property damage.
WARNING: A warning statement describes a potentially hazardous situation that if not avoided, can result in severe
personal injury and/or property damage.
CAUTION: A caution statement describes a potentially hazardous situation that if not avoided, can result in minor
or moderate personal injury and/or property damage.
NOTE: A note provides important information that should not be ignored.
⚠ WARNING ⚠
• Gas-fired appliances are not designed for use in hazardous atmospheres containing flammable
vapors or combustible dust, in atmospheres containing chlorinated or halogenated hydrocarbons,
or in applications with airborne silicone substances.
• Should overheating occur, or the gas supply control system fail to shut off the flow of gas, shut
off the manual gas valve to the unit before shutting off the electrical supply.
• Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and replace any gas control that has been under water.
• Installation should be done by a qualified agency in accordance with these instructions. The
qualified service agency installing this high efficiency separated-combustion system is responsible
for the installation.
Table 1. Related Technical Manuals Available from Factory Distributor
Type Form
PN*
Replacement parts P-UEZ 1034348
Venting I-OPT-VC 205892
Vertical louver installation CP-UB-UD-UEZ-VL 1036173
*Also available at www.reznorhvac.com.
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