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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
•
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 flange as shown in
Figure 1. UV light should be directed over blower
UV LIGHT ASSEMBLY
(WITH MAGNETIC CLIPS)
Manual 7960-918
Page
4 of 9
6. Route wires into control panel through bushing in
7. Kit 8620-343 (460V-3PH Units) Only: 460V
8. Connect red wire from UV light assembly to
9. Determine unit supply voltage—located on the
FIGURE 1
Install UV Light Assembly and Route Wires
MIS-4328
outlets, facing evaporator coil. (Models may have air
deflector or control box mounted to blower partition;
however, UV light can still be installed as shown.)
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.
stepdown transformer can be installed in any of
these four locations: In control panel assembly, on
side flange of control panel, on blower partition or
under blower partition (see Figure 2).
"NO" contact on the relay assembly (see Field
Installation Diagram on page 9).
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.
ROUTE WIRES
THROUGH BUSHING
CONTROL PANEL
BUSHING
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