Pr
o
-
C
Series
2
Model Description
On the front of the PRO-C is an identifi cation label (Figure
2). The specifications on the label correspond to the
actual unit. The model number PROC-1000 refers to the
nominal air volume (in cfm) that the PRO-C unit is capable
of supplying.
Definitions
Outdoor air
– The fresh outside air that is being drawn
in to the energy recovery wheel. Once it passes through
the wheel it becomes the supply air.
Return air
– Air from the indoor space that is pulled
through the energy recovery wheel. Once it passes
through the wheel it is referred to as exhaust air.
Rotor
– The media-filled wheel that rotates. It
transfers heat energy and water vapor from one ducted
airstream to the other. Often, the rotor will be referred
to as a wheel.
Seal
– The soft material that closely surrounds the
rotor to limit the amount of bypass air around the
rotor.
Supply air
– Air provided to the indoor space.
Outside air that passes through the energy recovery
wheel becomes supply air.
Unit
– Used frequently throughout this manual to
mean the TEC
Energy Recovery Wheel and attendant
components such as cabinets, motors, fans and other
parts that work together to make an effective energy
recovery product.
Wheel
– Refers to the rotating wheel containing the
coated media. The stationary framework supporting
the wheel is the wheel cassette.
5
14
6
7
10
1
3
4
2
8
9
11
13
12
Adsorption
– The physical bonding of water vapor
on the surface of the desiccant.
Cassette
– The framework supporting the wheel. (See
also Wheel.)
Desiccant
– A naturally occurring or man-made
material with a high affi nity for water vapor. SEMCO
uses a total energy composite desiccant material which
recovers equal sensible and latent energy.
Enthalpy wheel
– A common term used to describe
all rotating, wheel-shaped heat transfer devices that
exchange sensible (temperature) and latent (water
vapor) energy from one airstream to another. The
word, enthalpy, means heat content or total heat. The
term, enthalpy exchanger, may also be used.
Exhaust air
– The air from indoors that passed
through the energy recovery wheel and is being ducted
outdoors.
Heat wheel
– This generally describes all rotating
devices which transfer only sensible energy.
Media
– The corrugated material inside the wheel.
1
2
3
4
5
6
7
9
10
11
12
13
14
Figure 3. Typical PRO-C unit with components highlighted
per definitions above.
Figure 2. Typical PRO-C nameplate with electrical data.
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