6
Figure 3. Minimum Clearances
36"
36"
0"
36"
72"
Air Filter Requirements — Three phase units
“Only” are supplied from the factory with an
internal fi lter rack assembly. Air fi lters are not
supplied; a suitable air fi lter must be installed in
the unit or in the return air system for all units.
See Table 1 for internal fi lter size requirements.
When utilizing an Economizer or Fresh Air
Equipment, the factory installed filter rack
assembly must be removed prior to installation.
Refer to Table 1 for recommended fi lter sizes
when the factory installed fi lter system is not
used. Air fi lter pressure drop must not exceed
0.08 inches WC. Air fi lter(s) must be installed in
the return air ductwork ahead of the evaporator
coil of this unit. All return air to this unit must pass
NFPA publications are available by writing:
National Fire Protection Association
Batterymarch
Park
Quincy, Maine 02269
Unit Location — This air conditioner is
designed only for outdoor installations. Choosing
the location of the unit should be based on
minimizing the length of the supply and return
ducts. Consideration should also be given to
availability of electric power, service access,
noise, and shade. Sufficient clearance for
unobstructed airflow through the outdoor
coil must be maintained in order to achieve
rated performance See Figure 3 for minimum
clearances to obstructions.
Unit Size
Internal Filter Size
R6GD-X36
(2) 16” x 25” x 1”
or
(2) 16” x 25” x 2”
P6SD-X36
P6SD-X48
Q6SD-X36
P6SD-X60
Q6SD-X48/X60, R6GD-X48/X60
(2) 18” x 25” x 1”
or
(2) 18” x 25” x 2”
Figure 3a. Internal Filter Rack Location
Securing
Screw
Table 1. Internal Filter Size Requirements.
