Bard CRVP-5L User manual

Manual 2100-458F
Page 1 of 18
COMMERCIAL ROOM VENTILATORS
WITH EXHAUST
MODEL
CRVS-5
CRVP-5
CRVP-5L
For Use with Bard 3-1/2 through 6 Ton
Wall Mount Air Conditioners
and Heat Pumps
© Copyright 2004
Manual : 2100-458F
Supersedes: 2100-458E
File: Volume III Tab 19
Date: 02-05-08
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
INSTALLATION INSTRUCTIONS

Manual 2100-458F
Page 2 of 18
CONTENTS
General
General Information ................................................. 3
Unpacking ................................................................ 3
Description ............................................................... 3
Installation
Basic Installation ................................................... 4-8
Blade Adjustment for Desired Ventilation Air .......... 11
Commercial Room Ventilator –
WA, WH & WL Series............................................ 17
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 & 9
Figure 5A .............................................................. 10
Figure 5B .............................................................. 10
Figure 6 CRV Position Adjustment ....................... 11
Figure 7 Call for Blower Operation ...................... 17
Figure 8 Call for Cooling Operation..................... 18
Tables
Table 1 ................................................................ 4
Graphs
SH381 High Speed ................................................ 12
SH381 Medium Speed ........................................... 12
SH381 Low Speed ................................................. 13
SH431/SH491/SH611 High Speed ........................ 13
SH431/SH491/SH611 Medium Speed ................... 14
WA/WH42 & WA/WH48 High Speed..................... 14
WA/WH42 & WA/WH48 Low Speed ..................... 15
WA/WH60 & WA70/72 High Speed ....................... 15
WA/WH60 & WA70/72 Low Speed ....................... 16
Manufactured under U.S. Patent number 5,301,744
Other patents pending
COPYRIGHT DECEMBER 2004
BARD MANUFACTURING COMPANY, INC.
BRYAN, OHIO USA 43506

Manual 2100-458F
Page 3 of 18
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, CRVP-5 and CRVP-5L 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 2100-458F
Page 4 of 18
INSTALLATION
BASIC INSTALLATION
1. Unpack the ventilator assembly which includes the
integral ventilator with attached electrical harness
and miscellaneous hardware.
2. Remove and save the existing exterior blower
access and service access panels on the Bard wall
mount unit. (See Figure 1.)
LEDOM HTIWESUROF STINUGNIWOLLOF
5-SVRC
24AW 84AW 06AW 07AW 27AW
24HW 84HW 06HW 83HS 34HS 94HS 16HS
24LW 84LW 06LW
5-PVRC
24AW 84AW 06AW 07AW 27AW
24HW 84HW 06HW 83HS 34HS 94HS 16HS
L5-PVRC 24LW 84LW 06LW
TABLE 1
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.
FIGURE 1
REMOVAL OF EXTERIOR PANELS

Manual 2100-458F
Page 5 of 18
FIGURE 2
REMOVAL OF AIR FILTER AND EXHAUST COVER PLATE
3. Remove and save existing unit air filter and screws
from front center grille. (See Figure 2.)
4. Remove and discard the exhaust cover plate.

Manual 2100-458F
Page 6 of 18
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.)
5. For Installation of Left Hand Units Only – Remove
strain relief in right side of CRVS. Unclip the (2)
wire ties holding the wire harness. Reroute wires to
left side of CRVS. Reinstall wire ties in left side
holes. Route wires through left side and reinstall
strain relief. (See Figure 3.)
FIGURE 3
REROUTE WIRES FOR LEFT HAND CRVS-5 UNITS ONLY (CRVS SHOWN)

Manual 2100-458F
Page 7 of 18
7. Open control panel to gain access to unit low
voltage terminal block.
8. Route electrical harness leads through the 7/8"
bushing in control panel (Figure 4) into low voltage
box.
FIGURE 4
INSTALL VENTILATOR
IMPORTANT: Position front lip of ventilator on
top of front grille and condenser partition. (See
Figure 4 inset.) This is important to ensure proper
drainage of any water entering damper assembly.
FIGURE 4 INSET
SIDE SECTION

Manual 2100-458F
Page 8 of 18
9. Connect leads with fork terminal to corresponding
points on unit terminal strip. (See wiring diagram,
Figure 5A or 5B, or on ventilator.)
10. Close control panel cover.
11. Replace left filter support, filter and four (4) screws
in condenser grille.
12. Reinstall the blower access panel at top of unit and
secure with sheet metal screws.
13. Ventilator Checkout
A. Remove mist eliminator to allow access to
minimum position thumbwheel or blade stops.
B. Resupply power to unit.
C. Energize the evaporator blower by switching
thermostat to the manual fan position with
heat/cool in OFF position.
D. Ventilator should open to the position set by
position adjustment thumbwheel on the CRVS,
or to the blade stops on the CRVP. On the
CRVS, cycle position adjustment thumbwheel
to full open through full close. Observe damper
blade operation throughout travel to assure free,
unobstructed movement. (See Figure 5.)
E. De-energize evaporator blower. Damper blade
should close.
G. This completes ventilator checkout.
14. Adjust damper blade for required ventilation
airflow. (See next section.)
15. Replace mist eliminator. Be sure it is installed with
the drain holes to the bottom.
16. Remove blank off plate or barometric fresh air
damper installed on service access door. Plug four
(4) mounting holes with the plastic plugs provided
with the ventilator.
17. Replace service access panel.
18. Ventilator is now ready for operation.
FIGURE 5
CRVS LEAD CONNECTIONS CRVP LEAD CONNECTIONS
COMPONENT CODE
BLACK
BK
4056-189 A
CRVS
CR
BK
13
4
7
AB
DM
CR
RED
BROWN
6
CONTROL RELAY
TBL DAMPER MOTOR TERMINAL STRIP
ORANGE
YELLOW
GREEN
BLUE
WHITE
COLOR CODE
BK
BR
R
O
Y
G
BL
W
BR/W
9
R
T
X
D
DM
C
O
01
BR/W
GRF
BL
R
O
BR/W
R
BK
4056-180 B
CRVP
CR
BL Y
BK
CW
CCW COM
DM
13
4
7
AB
6
9
CONTROL RELAY
DAMPER MOTOR
TERMINAL STRIP
CR
DM
TBL
COMPONENT CODE
BLACK
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
WHITE
COLOR CODE
BK
BR
R
O
Y
G
W
RG 01 C
F

Manual 2100-458F
Page 9 of 18
FIGURE 5 - CONTINUED
CRVP-*L LEAD CONNECTIONS
C RG 01
F
W
3
6
BROWN
O
BR/W
R
BK
4056-196
CRVP
CR
Y
BK
CW
CCW COM
DM
1
CONTROL RELAY
4
7
AB
BLACK
COMPONENT CODE
DM
RED
R
9
TBL DAMPER MOTOR TERMINAL STRIP
CR
ORANGE
YELLOW
GREEN
BLUE
COLOR CODE
WHITE
BK
BR
R
O
Y
G
BL
BL

Manual 2100-458F
Page 10 of 18
FIGURE 5A
FIGURE 5B
WHEN THE CRV IS RUNNING IN OCCUPIED CONDITIONS.
8403-057
WIRE OPTIONAL IF BATTERIES ARE USED IN THE THERMOSTAT.
LOW VOLTAGE WIRING AC
1
TH3110D1040
3
REMOVE JUMPER IF THERMOSTAT HAS A1TERMINAL (OCCUPIED) THIS WILL ALLOW THE BLOWER TO RUN
2FACTORY INSTALLED JUMPER
8403-058
TH5220D1151
MIS-2174 B
BK CRVP
C R G Y1 W2 Y2
3
2
A
2
C RC R G Y W W2 Y2
C R G Y W1 W2 E F 1 2 3
3
R
O
C RC R G Y W
BR/W
1
CRVS
W1/E 8403-060
UNIT 24V
TERMINAL BLOCK
3
2
1WHEN THE CRV IS RUNNING IN OCCUPIED CONDITIONS.
WIRE OPTIONAL IF BATTERIES ARE USED IN THE THERMOSTAT. (9403-058 ONLY)
REMOVE JUMPER IF THERMOSTAT HAS A1TERMINAL (OCCUPIED) THIS WILL ALLOW THE BLOWER TO RUN
FACTORY INSTALLED JUMPER
C
BR/W
W3 E
MIS-2186 B
LOW VOLTAGE WIRING HP
Y1RC G O/B W2
W1/E
L
AUX
O/B
G
CR Y
BK
O
Y1
A
RG
RED CRVS
1
TH5220D1151
RC
E
L
9403-058
Block
8403-060
2
2
CRVP
Y01DHW2
BW1
Unit 24V
Terminal
L
3

Manual 2100-458F
Page 11 of 18
BLADE ADJUSTMENT FOR DESIRED
VENTILATOR AIR
The amount of ventilation air supplied by the
commercial room ventilator is dependent on five (5)
factors.
1. Return air duct static pressure drop.
2. Supply air duct static pressure drop.
3. Indoor blower motor speed.
4. Damper blade open position setting.
5. Tightness or looseness of building envelope.
Determine on what speed the evaporator motor is
running.
Refer to the graphs on the following pages to determine
the blade setting necessary to achieve the ventilation air
required. With the blower energized, use the
thumbwheel on the CRVS-5, adjust blade to desired
blade position. On the CRVP-5 and CRVP-5L, move
the blade stops on the sides of the CRVP to the desired
blade position - making sure the stops are parallel side
to side.
FIGURE 6
CRV POSITION ADJUSTMENT
CLASSROOOM VENTILATOR MOTOR
MIS-2188
NOTE: POSITION ADJUSTMENT
THUMBWHEEL IS LOCATED
ON BACK OF MOTOR ABOVE
THE WIRING TERMINALS
ACTUATOR
MOTOR
BACK OF
ADJUSTMENT
THUMBWHEEL
ROTATE UP TO OPEN
DOWN TO CLOSE
POSITION WITH THUMBWHEEL
ADJUST FULL OPEN
POSITION
ADJUSTMENT
THUMBWHEEL

Manual 2100-458F
Page 12 of 18
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Vent Air 0 ESP
Vent Air .2 ESP
SH381 MEDIUM SPEED TOTAL AND VENTILATION AIRFLOW
SH381 HIGH SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Vent Air 0 ESP
Vent Air .2 ESP

Manual 2100-458F
Page 13 of 18
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Vent Air 0 ESP
Vent Air .2 ESP
SH381 LOW SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Vent Air 0 ESP
Vent Air .2 ESP
SH431/SH491/SH611 HIGH SPEED TOTAL AND VENTILATION AIRFLOW

Manual 2100-458F
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WA/WH42 & WA/WH48 HIGH SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Total Air .4 ESP
Vent Air 0 ESP
Vent Air .2 ESP
Vent Air .4 ESP
SH431/SH491/SH611 MEDIUM SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Vent Air 0 ESP
Vent Air .2 ESP

Manual 2100-458F
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WA/WH42 & WA/WH48 LOW SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Total Air .4 ESP
Vent Air 0 ESP
Vent Air .2 ESP
Vent Air .4 ESP
WA/WH60 & WA70/72 HIGH SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
ABCDEF
Vent Position
Airflow (cfm)
Total Air 0 ESP
Total Air .2 ESP
Total Air .4 ESP
Vent Air 0 ESP
Vent Air .2 ESP
Vent Air .4 ESP

Manual 2100-458F
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WA/WH60 & WA70/72 LOW SPEED TOTAL AND VENTILATION AIRFLOW
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
ABCDEF
Vent Position
Airflow (cfm)
Tota l A ir 0 ESP
Total A ir .2 ESP
Total A ir .4 ESP
Vent Air 0 ESP
Vent Air .2 ESP
Vent Air .4 ESP

Manual 2100-458F
Page 17 of 18
FIGURE 7
CALL FOR BLOWER OPERATION
COMMERCIAL ROOM VENTILATOR –
WA, WH AND WL SERIES
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.
• Provides up to 75 percent of outside air.
COMMERCIAL ROOM VENTILATOR
SEQUENCE OF OPERATION
On a call for blower operation, CRV opens to a
position as set by minimum position potentiometer. See
Figure 7.

Manual 2100-458F
Page 18 of 18
A call for cooling cycles the compressor, and dampers
remain in the ventilation mode. On loss of blower
operation, CRV closes fully. See Figure 8.
FIGURE 8
CALL FOR COOLING OPERATION