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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 flange as shown in Figure 1. UV
light should be directed over blower outlets, facing
evaporator coil.
Manual 7960-912
Page
4 of 8
6. Route wires into control panel through upper right
7. Kit 8620-343 (460V-3PH Units) Only: Install
8. Connect red wire from UV light assembly to
9. Determine unit supply voltage—located on the
10. Connect red wire from "COM" on relay assembly to:
FIGURE 1
Install UV Light Assembly and Route Wires
bushing in blower partition, then into control panel
as shown in Figure 1.
460V stepdown transformer on blower partition and
route wires through blower partition as shown in
Figure 1.
"NO" contact on the relay assembly (see Field
Installation Diagram on page 8).
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.
(230V-1PH) − "L1"
(230V-3PH) − "L1"
(460V-3PH) − White Wire-Transformer
See Field Installation Diagram on page 8.
UV LIGHT ASSEMBLY
MAGNETICALLY ATTACHED
460 VOLT - 3 PHASE
(KIT 8620-343)
INSTALL TRANSFORMER
AND COVER ON BLOWER
PARTITION
FEED WIRE
THROUGH UPPER
RIGHT BUSHING.
THEN INTO CONTROL
PANEL
MIS-4311
MIS-4311
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