DR Series
Installation Manual
All persons involved with the installation, operation, and maintenance of the heater system must read and
understand the information in this manual.
Improper installation, adjustment, alteration, service, or maintenance can cause property
damage, injury, or death. Read and understand the installation, operating, and
maintenance instructions thoroughly before installing or servicing this heater.
Only trained, qualified gas installation and service personnel may install or service this
heater. Failure to comply could result in personal injury, asphyxiation, death, fire, and/or
property damage.
In locations used for the storage of combustible materials, signs must be posted to specify
the maximum permissible stacking height to maintain the required clearances from the
heater to the combustibles. Signs must either be posted adjacent to the heater
thermostats or, in the absence of such thermostats, in a conspicuous location.
Not for residential use!
This heater is not approved in any residential application. This includes (but is not limited to) the home,
living quarters, attached garages, etc. Installation in residential indoor spaces may result in property
damage, asphyxiation, serious injury, or death.
For Your Safety
If you smell gas:
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
INSTALLER: Present this manual to the end user.
Keep these instructions in a clean and dry place for future reference.
Model#: ___________________ Serial #: _________________________
!
WARNING
!
• Immediately call your gas supplier from a neighbor's phone.
• Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
(located on rating label)
LIODR-Rev. 23014
Print: 2M-02/24(CDS)
Replaces: LIODR-5M-05/22 (CDS)
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