Reznor UEAS Unit Installation Manual - Manual (Page 5)

Locate the heater so that it is a minimum of five feet (1.5M) above the floor and in
compliance with the clearances in Paragraph 4.2.
WARNING
Internal heater surfaces that are accessible from outside
the heater will cause burns if touched. Suspend the heater a
minimum of 5 feet (1.5M) above the floor.
For best results, the heater should be placed with certain rules in mind. In general,
a unit should be located from 8 to 12 feet (2.4-3.7M) above the floor. Units should
always be arranged to blow toward or along exposed wall surfaces, if possible.
Where two or more units are installed in the same room, a general scheme of air
circulation should be maintained for best results.
Suspended heaters are most effective when located as close to the working zone
as possible, and this fact should be kept in mind when determining the mounting
heights to be used. However, care should be exercised to avoid directing the dis-
charged air directly on the room occupants.
Partitions, columns, counters, or other obstructions should be taken into consid-
eration when locating the unit heater so that a minimum quantity of airflow will be
deflected by such obstacles.
When units are located in the center of the space to be heated, the air should be
discharged toward the exposed walls. In large areas, units should be located to
discharge air along exposed walls with extra units provided to discharge air in
toward the center of the area.
At those points where infiltration of cold air is excessive, such as at entrance doors
and shipping doors, it is desirable to locate the unit so that it will discharge directly
toward the source of cold air from a distance of 15 to 20 feet (4.6-6.1M).
CAUTION: Do not locate the heater where it may be
exposed to water spray, rain, or dripping water.
The presence of chlorine vapors in the combustion air of gas-fired heating equip-
ment presents a potential corrosion hazard. Chlorine found usually in the form
of freon or degreaser vapors, when exposed to flame will precipitate from the
compound, and go into solution with any condensation that is present in the heat
exchanger or associated parts. The result is hydrochloric acid which readily attacks
all metals including 300 grade stainless steel. Care should be taken to separate
these vapors from the combustion process. This may be done by wise location of
the unit vent and combustion air terminals with regard to exhausters or prevailing
wind directions. Chlorine is heavier than air. Keep these facts in mind when deter-
mining installation location of the heater in relation to building exhaust systems.
Location
Recommendations
Hazards of Chlorine
- applies to location of
Model UEAS heater with
regard to combustion air
inlet
3.0 Receiving,
Uncrating, and
Preparing for
Installation
This unit was test operated and inspected at the factory prior to crating and was
in operating condition. If the heater has incurred any damage in shipment, docu-
ment the damage with the transporting agency and contact an authorized Reznor ®
Distributor. If you are an authorized Distributor, follow the FOB freight policy proce-
dures as published by Reznor for Reznor ® products.
Check the rating plate for the gas specifications and electrical characteristics of the
heater to be sure that they are compatible with the gas and electric supplies at the
installation site. A conversion kit is included with the heater for converting for use
with propane; see instructions in Paragraph 7.1.4.
Read this booklet and become familiar with the installation requirements of your
particular heater. If you do not have knowledge of local requirements, check with
the local gas company or any other local agencies who might have requirements
concerning this installation.
Before beginning, make preparations for necessary supplies, tools, and manpower.
Be sure that the vent/combustion air kit (either vertical Option CC2 or horizontal
Option CC6) is at the job site.
Form I-UEAS, P/N 221232 R13, Page 5