3
Fig. 3
Verify proper installation of lamps.
CHECKING THE LAMPS
(Fig. 3)
Lamps are factory installed as shown below. Make
sure that the lamps have not become disengaged
during shipping. Use cotton gloves or cloth to
avoid fingerprints on the lamp.
Make sure that the
blackened side of the lamp faces the MERV 16 filter.
Excessive force
may damage
plastic socket.
Unpacking
Sharp edges hazard.
Equipment sharp edges can cause injuries.
Use protective gloves when grasping equipment edges.
CAUTION
PREPARING THE LOCATION
(Fig. 4)
Before installing the PCO-20P:
1. Turn off electrical power to unit.
2. Remove the cover to upper return air opening.
3. Remove filter, blower and electrical access panels
Intended for return air installation only.
Improper installation can damage HVAC system,
PureAir™ system or other equipment and may void
warranty.
NOTICE
Upper Return Cover
Filter Panel
Blower Panel
Electrical Panel
Fig. 4
Remove return cover and filter, blower, and elec-
trical panels.
The PCO-20P is designed for use in Dave Lennox
Signature® Collection package units only. It can
only be used with side return duct connection.
Both upper and lower return duct connections
must be used for proper air flow.
Installation
INSTALLING THE TRANSFORMER/FUSE
ASSEMBLY
1. Mount transformer/fuse assembly (using 2
included self drilling screws) in blower compart-
ment in front of the blower next to the access
door on the wall between the blower compart-
ment and the heating compartment. (Fig. 5)
(Continued on next page.)
Fig. 5
Mount transformer/fuse assembly to blower
compartment wall.
Use included
screws to mount
transformer/fuse
assembly.
Drip
Loop
Installation
Blackened side facing filter.
