Bard WFERV-A-4, Руководство по установке

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Manual 2100-495A
Page
3 of 21
MODEL NOMENCLATURE LEGEND
NOTE: Never set intake blower at a lower speed than
the exhaust blower, as it will create a
negative pressure in the room.
During operation below 5 degrees F outdoor
temperature, freezing of moisture in the heat
transfer wheel can occur. Consult the factory
if this possibility exists.
GENERAL INFORMATION
The ventilator should only be installed by a trained
heating and air conditioning technician. These
instructions serve as a guide to the technician installing
the ventilator package. They are not intended as a step-
by-step procedure with which the mechanically-inclined
owner can install the package.
The ventilator housing is shipped in one carton, which
contains the following:
1. Energy Recovery Ventilator
2. Service Door
3. Rain Hood and Mist Eliminator
4. Installation Instructions
UNPACKING
Upon receipt of the equipment, be sure to compare the
model number found on the shipping label with the
accessory identification information on the ordering and
shipping document to verify that the correct accessory
has been shipped.
Inspect the carton housing of each ventilator as it is
received, and before signing the freight bill, verify that
all items have been received and that there is no visible
damage. Note any shortages or damage on all copies of
the freight bill. The receiving party must contact the last
carrier immediately, preferably in writing, requesting
inspection by the carrier’s agent. Concealed damage not
discovered until after loading must be reported to the
carrier within 15 days of its receipt.
GENERAL DESCRIPTION
The Energy Recovery Ventilator was designed to
provide energy efficient, cost effective ventilation to
meet I.A.Q. (Indoor Air Quality) requirements while still
maintaining good indoor comfort and humidity control
for a variety of applications such as schools, classrooms,
lounges, conference rooms, beauty salons and others. It
provides a constant supply of fresh air for control of
airborne pollutants including CO
2
, smoke, radon,
formaldehyde, excess moisture, virus and bacteria.
The ventilator incorporates patented rotary heat
exchanger technology to remove both heat and moisture.
It is designed as a single package, which can be easily
factory or field installed for new installations or retrofit to
Bard WF wall mounted units. The package consists of a
unique rotary Energy Recovery Cassette that can be easily
removed for cleaning or maintenance. The cassette has a
21-inch diameter heat transfer wheel for efficient heat
transfer. The heat transfer wheel uses a permanently
bonded dry desiccant coating for total heat recovery.
Ventilation is accomplished with two (2) blower/motor
assemblies each consisting of a drive motor and dual
blowers for maximum ventilation at low sound levels.
On non-independent motor control models, the air is
exhausted at the same rate that fresh air is brought into
the structure, thus not impacting building pressure. On
independent motor control models, the air can be
exhausted at a different rate than the intake or fresh air.
Never operate the fresh air at a lower speed than the
exhaust air. Operating the fresh air at a higher speed
than the exhaust air will help maintain a slight positive
pressure in the building. The rotating energy wheel
provides the heat transfer effectively during both
summer and winter conditions. Provides required
ventilation to meet the requirements of ASHRAE 62.1-
2007 standard.
WF = Wall Mount Gas Furnace
Energy Recovery Ventilator
Color
-X = Beige
-4 = Buckeye Gray
WF ERV – X
ELECTRICAL SPECIFICATIONS
l e d o M e g a t l o V s p m A
l o r t n o C
e g a t l o V
V R E F W 8 0 2 / 0 3 2 1 . 2 V 4 2