EWHB Series Industrial / Commercial Electric Unit Heater /Installation Instructions, Page 1 of 4
23-2180-83-5REZ
INSTALLATION INSTRUCTIONS
RISK OF FIRE / EXPLOSION
This heater should not be used in potentially explosive atmospheres. Do not use in areas where gasoline,
paint or flammable liquids are used or stored.
Keep electrical cords, drapery, furnishings, insulation and other combustibles at least 3 feet (0.9m) from the
front of the heater and away from the sides, rear and top.
Installation minimum clearances specified both on the heater nameplate and in the owner’s manual must be
maintained.
Do not use as a residential or household heater.
These air heaters are designed for comfort heating and
should not be used in ambient temperatures exceeding
80ºF (26.7ºC). They are to be permanently mounted to the
wall or ceiling for horizontal discharge. The unit is
designed to give years of safe, trouble-free operation
when properly installed and maintained.
A.
Site Selection:
The heaters are intended for elevated mounting locations
so that they blow warm air down to the floor area. A
mounting height should be selected so that the heater is
out of the way of possible moving equipment or
personnel, yet low enough to deliver warm air to the
selected area. See the mechanical installation section for
recommended installation heights.
Heater airflow should be directed to areas of greatest heat
loss. In general, greater numbers of small heaters will
provide more uniform and even heat distributions than a
few large ones. In order to help move heated air around
the room, multiple heaters should be spaced out and
direct air in a circular pattern around the room perimeter
such that each heater supports the next heater’s
airstreams. See Figures 1 & 2 for some typical airflow
pattern arrangements:
Large room with exposed walls and roof :
FIGURE 1
Small room with one exposed wall:
EXPOSED WALL
FIGURE 2
