Bard 8620-343 Owner's manual

Page 1 of 8
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual: 7960-912
Supersedes: NEW
Date: 6-23-21
8620-343 & 8620-344
W42-72AC/42-60HC 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.
!WARNING
Electrical shock hazard.
Disconnect the remote electric power
supply or supplies before servicing.
Failure to do so can result in serious injury
or death.
!WARNING
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.
!WARNING
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.
!CAUTION
UV radiation hazard.
Use only with shielding in place.
Protect eyes and skin from
exposure to UV light.
!CAUTION
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.
!CAUTION

Manual 7960-912
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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Once absorbed, the UV radiation is no longer active.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
MIS-4309
MAGNETIC CLIPS
8
3/4"
"
1"
151
10"
(REF)
Dimensions
Kit Voltage Wall-Mount Models
8620-343 460V W42AC-72AC
W42HC-60HC
8620-344 230V
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 7960-912
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Parts List
WARNING LABEL
SEXP-1059
(ONLY IN KIT
8620-343)
J
L
B
K
A
C
I
F
E
DG
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 (820-343 Kit Only) 1
L 113-932 Transformer Enclosure (820-343 Kit Only) 1

Manual 7960-912
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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
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 blower partition on the
inside of the front ange as shown in Figure 1. UV
light should be directed over blower outlets, facing
evaporator coil.
FIGURE 1
Install UV Light Assembly and Route Wires
6. Route wires into control panel through upper right
bushing in blower partition, then into control panel
as shown in Figure 1.
7. Kit 8620-343 (460V-3PH Units) Only: Install
460V stepdown transformer on blower partition and
route wires through blower partition as shown in
Figure 1.
8. Connect red wire from UV light assembly to
“NO” contact on the relay assembly (see Field
Installation Diagram on page 8).
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 8.
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 8.
MIS-4311
MIS-4311
UV LIGHT ASSEMBLY
MAGNETICALLY ATTACHED
FEED WIRE
THROUGH UPPER
RIGHT BUSHING.
THEN INTO CONTROL
PANEL
460 VOLT - 3 PHASE
(KIT 8620-343)
INSTALL TRANSFORMER
AND COVER ON BLOWER
PARTITION

Manual 7960-912
Page 5 of 8
11. Connect short orange wire from relay assembly to
indicator light assembly.
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 2).
14. Install door panel switch into panel switch bracket
113-908 (see Figure 3). Door panel switch acts as
interlock safety device to disable UV light source
upon removal of blower access panel preventing UV
exposure.
FIGURE 3
Install Panel Switch Assembly
MIS-4313
DOOR PANEL
SWITCH ASSEMBLY
BUSHING
ROUTE WIRES THROUGH
BLOWER ASSEMBLY
SCREW
MIS-4313
FIGURE 2
Install Relay and Indicator Light Assemblies
RELAY LOCATIONS INTHIS AREA
FIND AVAILABLE MOUNTING
LIGHT ASSEMBLY MIS-4312
MIS-4312

Manual 7960-912
Page 6 of 8
15. Remove right screw from blower assembly (see
Figure 3). Do NOT discard screw as it will be re-
installed.
16.
Install panel switch bracket directly behind blower
mounting angle where screw was removed (see
Figure 3). Align bottom hole in bracket with hole
where screw was removed in Step 13.
17. Re-install screw to secure blower assembly and
panel switch assembly.
18. Remove left lter and lter slide, then route long
orange wire from relay assembly (up to door panel
switch) and connect to “NO”. Route wire from
door panel switch (down to control panel) through
upper right control panel bushing, through lter
partition housing and blower partition as shown in
Figure 4.
19. Seat spade end of orange wire from panel switch
assembly under the “G” terminal on 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).
FIGURE 4
Panel Switch Wire Routing
MIS-4314
ROUTE WIRES THROUGH BLOWER PARTITIONBUSHING
FILTER PARTITION
FILTER SLIDE
BUSHING
UPPER CONTROL
PANEL BUSHING

Manual 7960-912
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FIGURE 5
Low Voltage Terminal Strip Connection Points
20. 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.
21. 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.)
22. 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!
MIS-4315
BLACK/WHITE ORANGE LOW VOLTAGE
TERMINAL STRIP
MIS-4315
23. Disconnect power to unit. Replace all inner and
outer panel covers.
24. Restore power to unit.
UV radiation hazard.
Use only with shielding in place.
Protect eyes and skin from
exposure to UV light.
!CAUTION

Manual 7960-912
Page 8 of 8
FIGURE 6
Field Installation Diagram
COM
NCNO
LowVoltage
W1
Y
R
G
C
3
E
2
1
W2
F
TerminalStrip
COM
NCNO
LowVoltage
W1
Y
R
G
C
3
E
2
1
W2
F
TerminalStrip
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
TerminalStrip
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