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 flange 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
deflector 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 flange 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