1
.2 General
Information
WARNING
Should overheating occur, or the gas supply fail to shut
off, shut off the manual gas valve to the appliance before
shutting off the electrical supply.
WARNING
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.
WARNING
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.
1.3 Warranty
Refer to the limited warranty information on the Warranty Form shipped
with the heater.
Warranty is void if ...
a. Wiring is not in accordance with the diagram furnished with the
heater.
b. The unit is installed without proper clearance to combustible
materials.
c. A fan model is connected to a duct system or if the air delivery sys-
tem is modified.
Model UEAS high-efficiency unit heaters are design certified by ITS for use
in industrial and commercial installations in the United States and Canada.
Instructions in this manual apply only to Model UEAS heaters.
Model UEAS heaters are available for use with either natural or propane
gas. The type of gas, the input rate, and the electrical supply requirement
are shown on the heater rating plate. Check the rating plate to determine
if the heater is appropriate for the intended installation.
NOTE
: All Model
UEAS heaters are factory equipped for use with natural gas and include a
conversion kit for field conversion for use with propane.
Model UEAS heaters have a titanium stabilized primary heat exchanger
with a MacroChanne
®
secondary heat exchanger (patent pending).
CAUTION
Model UEAS unit heaters should not be used in an
application where the heated space temperature is below
50°F. The combination of low space and combustion air
temperatures may result in condensate freezing in the
secondary heat exchanger and/or condensate drain.
Form I-UEAS, P/N 221232 R6, Page 3
