Bard WGSCRVS-3C, Руководство по установке, Страница: 3 / 17

Manual 2100-757
Page 3 of 17
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 electrical harness, miscellaneous hardware
and 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. 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.
Description
The ventilators are designed to be used with Bard 2 − 5
ton single stage wall mount gas electric units. They are
electromechanical vent systems designed to provide
fresh air to meet indoor air quality standards with built
in exhaust provisions.
Features
• One piece construction: Easy to install with no
mechanical linkage adjustment required.
• Exhaust air damper: Built in with positive closed
position. Provides exhaust air capability to prevent
pressurization of tight buildings.
• Actuator motor – 24 volt, power open, spring return
with built-in torque limiting switch.
• Solid state control board – can be used for ON/OFF
or 2-10VDC operation. Timed pre-purge feature to
provide increased ventilation before occupancy.
Potentiometers used to set blade position for ON/
OFF ventilation amount.
• Provides up to 75% of outside air.
Sequence of Operation
When no ventilation call is present, ventilation damper
remains closed and conditioned air is 100% return air
(see Figure 1 on page 4).
On a call for ventilation, commercial room ventilator
(CRV) opens to position set by minimum position
potentiometer and energizes comfort air blower (see
Figure 2 on page 5).
GENERAL INFORMATION
Commercial Room Ventilator Model Nomenclature
WGCRVS – 3 C
Revision
Commercial Room Ventilator
Chassis Size
3 – W24-36G Models
5 – W42-60G Models