Specifications

Pro-Series
1
Pro-Series
ERV Systems’ Pro-Series of outdoor air ventilators have
been specifically designed to reduce the energy required to
heat and cool outdoor air by as much as 80 percent. This
unique capability allows both new and existing buildings
to benefit from a healthy indoor environment by supply-
ing high amounts of outside air in a very cost-effective
manner.
The Pro-Series unit allows HVAC systems to effectively
and economically accommodate the increased outdoor air
quantities recommended by the American Society of Heat-
ing, Refrigerating and Air Conditioning Engineers
(ASHRAE) Standard 62. This standard guides the amount
of ventilation air that should be introduced to a building
to achieve acceptable indoor air quality.
The Pro-Series system is a packaged system which in-
cludes supply and exhaust air fans, outdoor and return air
filtration, and ERV’s total energy recovery wheel. The wheel
recovers both sensible (temperature) and latent (moisture)
energy. Therefore, it cools and dehumidifies the outdoor
air during the cooling season, while heating and humidify-
ing the air in the heating season.
The wheel utilizes a fluted aluminum sheet that is coated
with a fast-acting, adsorbent desiccant. As the transfer
media slowly rotates between the outdoor and exhaust air
streams, the higher temperature air gives up its sensible
energy to the aluminum. This energy is then given up to
the cooler air stream during the second half of the revolu-
tion. (See Figure 1.)
Just as the temperature is captured and released, so is the
moisture. The molecular sieve desiccant coating has a strong
attraction to water vapor. Since the opposing air streams
have different temperature and moisture contents, they
also have different vapor pressures. This difference pro-
vides the driving force that causes the transfer of latent
energy.
Through the use of a desiccant coating, moisture is re-
covered from an exhaust air stream without transferring
the airborne pollutants contained within the exhaust air-
stream to the supply air stream.
On the front of the Pro-Series unit is an identification
label. The specifications on the label correspond to the
actual unit. The model number (Pro-6, Pro-10, Pro-20,
etc.) refers to the nominal air volume (cfm) that the Pro-
Series ventilator supplies to the space.
Model Description
Figure 1.Figure 1.
Figure 1.Figure 1.
Figure 1. An inside view of the Pro-Series Preconditioner
with typical operating temperatures during the cooling (C)
and heating (H) season respectively.
Outdoor Air
95°F, 110gr/lb (C)
5°F, 4gr/lb(H)
Supply Air
80°F, 76gr/lb (C)
54°F, 25gr/lb (H)
Return Air
75°F, 65gr/lb (C)
70°F, 32gr/lb (H)
Exhaust Air
90°F, 99gr/lb(C)
21°F, 9gr/lb (H)
PO Box 1797 Columbia, MO 65205-1797
[phone] FAX[phone]
Model :
PRO20H-5RN2AA
Serial No. :
1002/15250-000
Tag :
ERU-1
9700598
CONFORMS TO
UL STD 1812
Volts :
240
Exhaust Blower Motor :
0.75
HP
2.8
Amps
Freg. :
60
Supply Blower Motor :
1.50
HP
5.6
Amps
Phase :
3
Preheater :
N/A
kW
Amps
Amps :
10.00 Min. Supply Circuit Ampacity :
13.5
MFG Date :
May, 2001
Max. Overcurrent Protection :
25
Amps
Suitable For Outdoor Use Use Time-Delay Fuses or HACR-Type Circuit Breakers
Manufactured under U.S Patents 4,769,053 & 6,016,710
Figure 2. Figure 2.
Figure 2. Figure 2.
Figure 2. Typical Pro-Series nameplate with electrical
data.