Manual 2100-635A
Page
3 of 18
WALL MOUNT ENERGY RECOVERY VENTILATOR MODEL NOMENCLATURE
GENERAL DESCRIPTION
The Wall Mount Energy Recovery Ventilator was
designed to provide energy efficient, cost effective
ventilation to meet IAQ (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 the new Bard W series wall-mounted units. The
package consists of a unique rotary Energy Recovery
Cassette that can be easily removed for cleaning or
maintenance. The WERVP*5 has two 15" diameter
heat transfer wheels for efficient heat transfer. The
heat transfer wheels use a permanently bonded dry
desiccant coating for total heat recovery. An outdoor
air shutoff damper is an integral feature of the WERVP
and prevents infiltration when the ERV is turned off.
Ventilation is accomplished with two blower/motor
assemblies each consisting of a drive motor and dual
blowers for maximum ventilation at low sound levels.
The intake and exhaust blowers can be operated at the
same speed (airflow rate) or different speeds to allow
flexibility in maintaining desired building pressurization
conditions. Factory shipped on medium intake and low
exhaust. See Figure 8 on page 13 to change speeds.
The rotating energy wheels provide the heat transfer
ELECTRICAL SPECIFICATIONS
effectively during both summer and winter conditions.
Provides required ventilation to meet the requirements
of ASHRAE 62.1 standard.
NOTE:
During operation below 5
°
F outdoor
temperature, freezing of moisture in the heat
transfer wheel can occur. Consult the factory if
this possibility exists.
GENERAL INFORMATION
NOTE:
This manual covers both factory- and field-
installed WERVP assemblies. For factory-
installed WERVP, skip information pertaining to
installation of the WERVP system.
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:
• Energy recovery ventilator
• Service door
• Rain hood and mist eliminator
• 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.
W ERV P A 5 – X
W – Wall Mount
Color
X – Beige
1 – White
4 – Gray
5 – Desert Brown
Energy Recovery Ventilator
Wall Mount – Cabinet Size
5 – W42A* thru W72A*
W42H* thru W60H*
(* revision
letter
)
Electrical
A – 230/208 volt
C – 460 volt
Plug-In Vent Connection
8 – Dark Bronze
A – Aluminum
S – Stainless
Model
Voltage
Amps
Control
Voltage
WERVPA5
230/208
2.2
24V
WERVPC5
460
1.2
24V
