
INSTALLATION INSTRUCTIONS
COMMERCIAL ROOM VENTILATORS
WITH EXHAUST
MODEL
CRVS-5
CRVP-5
© Copyright 2004
For Use with Bard 3-1/2 through 5 Ton
Wall Mount Air Conditioners
and Heat Pumps
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Manual : 2100-458C
Supersedes: 2100-458B
File: Volume III Tab 19
Date: 08-18-06
Manual 2100-458C
Page 1 of 17

CONTENTS
General
General Information ................................................. 3
Unpacking................................................................ 3
Description ............................................................... 3
Installation
Basic Installation................................................... 4-8
Blade Adjustment for Desired Ventilation Air ......... 10
Commercial Room Ventilator –
WA, WH & WL Series............................................ 16
Figures
Figure 1 Removal of Exterior Panels .................... 4
Figure 2 Removal of Air Filter and Exhaust
Cover Plate ............................................. 5
Figure 3 Re-route Wires For Left Hand Units........ 6
Figure 4 Install Ventilator ...................................... 7
Figure 5 Top View of Control Panel ....................... 8
Figure 5A ................................................................ 9
Figure 5B ................................................................ 9
Figure 6 CRVS Position Adjustment ................... 10
Figure 7 Call for Blower Operation ...................... 16
Figure 8 Call for Cooling Operation ..................... 17
Tables
Table 1 ................................................................ 4
Graphs
SH381 High Speed .................................................11
SH381 Medium Speed............................................ 11
SH381 Low Speed ................................................. 12
SH431/SH491/SH611 High Speed ........................ 12
SH431/SH491/SH611 Medium Speed ................... 13
WA/WH42 & WA/WH48 High Speed..................... 13
WA/WH42 & WA/WH48 Low Speed ..................... 14
WA/WH60 High Speed .......................................... 14
WA/WH60 Low Speed ........................................... 15
Manufactured under U.S. Patent number 5,301,744
BARD MANUFACTURING COMPANY, INC.
Manual 2100-458C
Page 2 of 17
Other patents pending
COPYRIGHT DECEMBER 2004
BRYAN, OHIO USA 43506

GENERAL
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, 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.
DESCRIPTION
The CRVS-5 and CRVP-5 ventilators are designed to be
used with Bard 3½ through 5 ton wall mount series air
conditioners and heat pumps. They are
electromechanical vent systems designed to provide
fresh air to meet indoor air quality standards.
MODELS:
When installed in the above-listed models, the CRV
provides built in exhaust provisions. When the damper
blade opens to bring fresh air in, the damper also opens
an exhaust relief. The exhaust air will flow into the
condenser section of the unit. The condenser fan will
help draw exhaust air out.
Manual 2100-458C
Page 3 of 17

INSTALLATION
BASIC INSTALLATION
1. Unpack the ventilator assembly which includes the
integral ventilator with attached electrical harness
and miscellaneous hardware.
WARNING
Open and lock unit disconnect switch before
installing this accessory to prevent injury or
death due to electrical shock or contact with
moving parts. Turn thermostat to off.
REMOVAL OF EXTERIOR PANELS
FIGURE 1
TABLE 1
HTIWESUROF
LEDOM
24AW
84AW
5-SVRC
5-PVRC
2. Remove and save the existing exterior blower
access and service access panels on the Bard wall
mount unit. (See Figure 1.)
06AW
83HS
34HS
94HS
16HS
STINUGNIWOLLOF
24HW
84HW
06HW
24LW
84LW
06LW
Manual 2100-458C
Page 4 of 17

3. Remove and save existing unit air filter and screws
from front center grille. (See Figure 2.)
REMOVAL OF AIR FILTER AND EXHAUST COVER PLATE
4. Remove and discard the exhaust cover plate.
FIGURE 2
Manual 2100-458C
Page 5 of 17

5. For Installation of Left Hand Units Only – Remove
strain relief in right side of CRV. Unclip the (2)
wire ties holding the wire harness. Reroute wires to
left side of CRV. Reinstall wire ties in left side
holes. Route wires through left side and reinstall
strain relief. (See Figure 3.)
REROUTE WIRES FOR LEFT HAND UNITS ONLY
6. Install ventilator by inserting the ventilator into the
unit to the far left side clearing the right filter
bracket. Once the ventilator is fully inserted, slide
the ventilator to the right until it is tight against the
back of the control panel. (See Figure 4.)
FIGURE 3
Manual 2100-458C
Page 6 of 17