Bard 8620-343 Owner's manual

Page 1 of 9
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual: 7960-918
Supersedes: NEW
Date: 6-23-21
UV-C exposure can cause burns to skin and
damage eyes.
Ensure proper safety precautions are taken
during installation.
A trained, experienced technician must
install the UV-C eld kit.
!WARNI NG
UV radiation hazard.
Use only with shielding in place.
Protect eyes and skin from
exposure to UV light.
!CAUTI ON
Ultraviolet band C (UV-C) energy may cause
damage to non-metallic components except
for UV-rated and HVAC-style drain pans.
Select mounting locations that prevent
exposure to vulnerable components. If
mounting locations are limited, protect
components with UV-resistant material
such as aluminum foil, aluminum duct tape,
metallic shields, etc.
!CAUTI ON
8620-343 & 8620-344
Wall Mount UV-C LED Field Kits
SUPPLEMENTAL INSTRUCTIONS
Exposed moving parts.
Disconnect all electrical power before
servicing.
Failure to do so can result in severe injury
or amputation.
!WARNI NG
Electrical shock hazard.
Disconnect the remote electric power
supply or supplies before servicing.
Failure to do so can result in serious injury
or death.
!WARNI NG
Sharp metallic edges.
Take care and wear appropriate protective
devices to avoid accidental contact with
sharp edges.
Failure to do so can result in personal injury.
!CAUTI ON

Manual 7960-918
Page 2 of 9
Personal Protective Equipment (PPE)
UV radiation is absorbed by clothing, plastic or glass.
Once absorbed, the UV radiation is no longer active.
Wear UV goggles or face shield. Cover any exposed skin
with coats, gloves, etc.
UV-C band light spectrum is not visible to the eye.
NOTE: The health aspects associated with the use of
this product and its ability to aid in disinfection
of environmental air have not been investigated
by UL.
NOTE: Color shift or chalking may occur without
affecting structural properties.
Product Specifications
Model
Olympia UV-C Light F15T5-15W-UVC-DL
Electrical Specs
Input Voltage 120-277VAC
Power Consumption 15W
Frequency 50/60Hz
Dimensional Specs
Unit Dimensions 15-1/8" L x 3/4" H x 1" D
Weight 1 lb
Performance
Irradiance 170µW/cm2
UL Listing and Certications
Compliance and
Certications
UL 1598
CSA C22.2#250.0
UL 8750
UL 2043
CE
RoHS Directive
“UV-C LED Light Bar Installed” Label 7961-622-0375
is located near unit serial plate
Kit Voltage Wall-Mount Models
8620-343 460V W**A2,W**AA, W**AB
W**L2, W**LA, W**LB
W**H2, W**HA, W**HB
W*SAC, W*RV, W*LV
8620-344 230V
MIS-4309
MAGNETIC CLIPS
8
3/4"
"
1"
151
10"
(REF)
Dimensions
Overview
The UV-C eld-installed light kits utilize UV-C LED
lighting technology to sterilize and improve overall air
quality within an occupied space. UV-C exposure is
proven to damage the DNA of microorganisms and render
them inactive aiding in preventing the spread of diseases.
These instructions are applicable to the following models:

Manual 7960-918
Page 3 of 9
Parts List
WARNING LABEL
SEXP-1059
(ONLY IN KIT
8620-343)
J
L
B
K
A
C
I
F
E
D
G
Reference
Letter Bard P/N Description Qty.
A 910-2181 15" UV-C Assembly 1
B 910-2182 Relay Assembly 1
C 910-2183 Red Indicator Light Assembly 1
D 910-2184 Door Panel Switch Assembly (Interlock Safety Device) 1
E 113-908 Bracket (WH/Q-TEC Q**H/A4 Units) 1
F 113-909 Bracket (I-TEC Units) 1
G 113-913 Bracket (Q-TEC Units) 1
H 7961-963 UV-C Warning Label 1
I Per Model Supplemental Instructions Manuals and Wire Diagrams 4/2
J 400-0467 Parts Bag – Six (6) Screws, Three (3) Zip Ties, Six (6) Pieces of Foil Tape,
Bushing, UV-C Warning Label and “UV-C LED Light Bar Installed” Label 1
K 910-2191 460V Stepdown Transformer Assembly (8620-343 Kit Only) 1
L 113-932 Transformer Enclosure (8620-343 Kit Only) 1

Manual 7960-918
Page 4 of 9
Installation
Field-supplied tools needed:
• Appropriate personal protection equipment,
including gloves and safety glasses
• Electrical meter to verify power status
• Drill
• Phillips head screwdriver
• 5/16" nut driver
• 7/8" drill bit (optional)
Installation Procedure
1. Disconnect all power to HVACR unit. Use the meter
to verify that power has been disconnected.
2. Remove outer and inner control panel covers.
3. Remove blower housing cover (large upper panel).
4. Attach two (2) magnetic clips to the UV light
assembly (see Dimensions drawing on page 2).
5. Install UV light assembly onto the blower partition
on the inside of the front ange as shown in
Figure 1. UV light should be directed over blower
FIGURE 1
Install UV Light Assembly and Route Wires
outlets, facing evaporator coil. (Models may have air
deector or control box mounted to blower partition;
however, UV light can still be installed as shown.)
6. Route wires into control panel through bushing in
blower partition or copper grommet or wire bushing,
then into control panel as shown in Figure 1.
NOTE: Not all models will have bushing in blower
partition. A 7/8" hole can be drilled and
supplied bushing can be installed.
7. Kit 8620-343 (460V-3PH Units) Only: 460V
stepdown transformer can be installed in any of
these four locations: In control panel assembly, on
side ange of control panel, on blower partition or
under blower partition (see Figure 2).
8. Connect red wire from UV light assembly to
“NO” contact on the relay assembly (see Field
Installation Diagram on page 9).
9. Determine unit supply voltage—located on the
unit serial plate. Connect black wire from UV light
assembly to:
(230V-1PH) − “L2”
(230V-3PH) − “L3”
(460V-3PH) − Black Wire-Transformer
See Field Installation Diagram on page 9.
MIS-4328
CONTROL PANEL
BUSHING
(WITH MAGNETIC CLIPS)
UV LIGHT ASSEMBLY
ROUTE WIRES
THROUGH BUSHING

Manual 7960-918
Page 5 of 9
FIGURE 2
Kit 8620-343 460V Stepdown Transformer Installation Locations
MIS-4336
TRANSFORMER COVER
NOT REQUIRED
IN UNIT CONTROL PANEL
ON BOTTOM BLOWER PARTITION
TRANSFORMER COVER
REQUIRED
ON TOP BLOWER PARTITION ON SIDE FLANGE
CONTROL PANEL

Manual 7960-918
Page 6 of 9
FIGURE 3
Install Relay and Indicator Light Assemblies
MIS-4329
SPACE IS LIMITED IN CONTROL PANELS ON
SOME MODELS. INSTALL RELAY AND INDICATOR
LIGHT WHERE THERE IS SPACE AVAILABLE.
10. Connect red wire from “COM” on relay assembly to:
(230V-1PH) − “L1”
(230V-3PH) − “L1”
(460V-3PH) − White Wire-Transformer
See Field Installation Diagram on page 9.
11. Connect short orange wire from relay assembly to
indicator light.
12. Connect short black/white wire from relay assembly
to indicator light.
13. Control panel assemblies vary due to available
control options. Find unused space on control
panel and install relay and indicator light
assemblies in control panel using self-drilling
screws provided (see Figure 3).
14. Install door panel switch into panel switch bracket
113-908 (see Figure 4). Door panel switch acts as
interlock safety device to disable UV light source
upon removal of blower access panel preventing UV
exposure.
15. Install panel switch assembly on the left side of
blower partition using self -drilling screw as shown
in Figure 4. Some models may have an air deector
installed on the blower partition; mount switch
assembly next to the blower partition as shown.

Manual 7960-918
Page 7 of 9
16. Route long orange wire from relay assembly (up to
door panel switch) and connect to “NO”. Route
orange wire from door panel switch (down to
control panel) through the blower partition and
control panel bushing as shown in Figure 1 on
page 4.
NOTE: Not all models will have bushing in blower
partition. A 7/8" hole can be drilled and
supplied bushing can be installed.
MIS-4330
DOOR SWITCH ASSEMBLY
LOCATION WHEN NO DEFLECTOR
IS USED.
DOOR SWITCH ASSEMBLY
USE BRACKET 113-908
ROUTE WIRES BEHIND
DEFLECTOR AND THROUGH
BUSHINGS TO CONTROL PANEL
SHOWN WITH
DEFLECTOR INSTALLED
1- 3/4"
INSTALL SWITCH ASSEMBLY
TO DEFLECTOR USING
SELF DRILLING SCREWS
PROVIDED
FIGURE 4
Install Panel Switch Assembly
17. Locate low voltage strip in control panel. Seat
spade end of orange wire from panel switch
assembly under the “G” terminal on the low
voltage strip assembly, then seat spade end of
black/white wire from coil on relay assembly under
the “C” terminal on low voltage strip (see Figure 5
on page 8).

Manual 7960-918
Page 8 of 9
18. Wires can be dressed with provided zip ties or
by tucking into wire channels. Ensure wires are
secured away from sharp edges and moving parts
to prevent damage.
Cover wires and plastic components within a
distance of 6" of the UV light with foil tape to
create a protective barrier from the UV light.
19. UV light will not function without blower panel
installed because of panel switch (interlock safety
switch). Do NOT press door panel switch with
blower panel removed as the UV source could
become active and create UV exposure.
Replace blower access cover (large upper panel).
Adhere UV-C Warning Label 7961-963 to blower
access panel.
Adhere “UV-C LED Light Bar Installed” Label
7961-622-0375 to unit serial plate. (Serial plate
is silver and located on the exterior of the unit
cabinet or on a service panel with “5253-039-
XXXX” printed in the lower right corner.)
20. Now that blower panel is installed, UV light
operation can be safely veried. Restore power
to unit and provide a “G” call signal from the
thermostat. Operation can be conrmed if indicator
light installed in Step 8 is ON in control panel.
Do NOT attempt to look at UV source to conrm
operation!
21. Disconnect power to unit. Replace all inner and
outer panel covers.
22. Restore power to unit.
FIGURE 5
Low Voltage Terminal Strip Connection Points
WITH SPADE IS CONNECTED
TO "C" ON LOW VOLTAGE STRIP
BLACK/WHITE WIRE
ORANGE WIRE
WITH SPADE IS CONNECTED
TO "G" ON LOW VOLTAGE STRIP
MIS-4331
UV radiation hazard.
Use only with shielding in place.
Protect eyes and skin from
exposure to UV light.
!CAUTI ON

Manual 7960-918
Page 9 of 9
FIGURE 6
Field Installation Diagram
COM
NCNO
LowVoltage
W1
Y
R
G
C
3
E
2
1
W2
F
Terminal Strip
COM
NCNO
LowVoltage
W1
Y
R
G
C
3
E
2
1
W2
F
Terminal Strip
L3
T2
T1
L2L1
T3
L3
T2
T1
L2L1
T3
480V
COM
230v
C
Transformer
NC
COM
NO
W1
Y
R
G
C
3
E
2
1
W2
F
LowVoltage
Terminal Strip
L1 Compressor
Contactor
ORANGE
UV-LIGHT
RELAY
INDICATOR
LIGHT
BLACK/WHITE
BLACK/WHITE
ORANGE
RED
BLACK
RED
ORANGE
BLACK WHITE
NO
COM
T2
T1
L2
DOOR PANELSWITCH
UNIT SUPPLY VOLTAGE
460 VOLT - 3 PHASE
230 VOLT - 3 PHASE
UNIT SUPPLY VOLTAGE
UNIT SUPPLY VOLTAGE
230 VOLT - 1 PHASE
CONTACTOR
ORANGE
WHITE
Contactor
COM
NO
WHITE BLACK
ORANGE
RED
BLACK
RED
ORANGE
BLACK/WHITE
BLACK/WHITE
Compressor
LIGHT
RELAY
DOOR PANELSWITCH
UV-LIGHT
ORANGE
ORANGE
COM
NO
WHITE
BLACK
ORANGE
RED
WHITE
BLACK
ORANGE
BLACK/WHITE
BLACK/WHITE
INDICATOR
LIGHT
RELAY
DOOR PANELSWITCH
UV-LIGHT
ORANGE
4214-102
BLACK/RED
BLACK
BLACK
BLK/RED
BLACK
INDICATOR COMPRESSOR
RED