Floor Installation; Ceiling Installation - Lennox MPA024S4S-*P Installation Instructions Manual

• Areas exposed to salt or other corrosive materials or
caustic gases
• Areas exposed to extreme voltage variations (such as
factories
• Tightly enclosed areas that may impede service of the
unit
• Areas exposed to fossil fuels (such as oil or gas in
kitchens)
• Areas exposed to strong electromagnetic forces
• Areas exposed to acids or alkaline detergents
DO
• Place the unit so that it is not exposed to direct sunlight
• Ensure the structural ceiling can support the weight of
the unit
• Select a location where condensate line will have the
shortest run to a suitable drain per local codes.
• Allow sufficient space around unit for proper operation
and maintenance
• Install unit a minimum of 3 feet (1m) away from any
antenna, power cord (line) radio, telephone, security
system, or intercom. Electrical interference and radio
frequencies from any of these sources may affect op-
eration
• Be sure to instruct customers how to properly operate
the unit (especially maintenance of air filter, and oper-
ation procedure) by having them carry out operations
themselves while looking at the manual provided with
the controller

Floor Installation

• Locate a suitable position within the space where
maintenance access and supply air will not be restrict-
ed or affected by obstacles. See "Figure 5. Indoor Unit
Clearances - Inches (mm)" on page 7 for minimum
clearances
• Place the MCFA or MCFB on a wall which is both ca-
pable of supporting the unit's weight and which is con-
structed to enable the unit to fit flush on the wall. An
uneven wall may lead to vibration and subsequent unit
damage
Figure 6. Floor / Wall Applications
Units are wall mounted using factory-installed hanging
brackets.
1. Remove the side panels and grille to expose factory-
installed hanging brackets on the sides of the unit.

Ceiling Installation

•
Electrical
•
Connections
Units are suspended from the ceiling using factory-
installed hanging brackets.
Refrigerant / Drain
Pipe Connections
8
Side Panel
Factory Installed
Hanging Brackets
Figure 7. Remove Side Panel and Grille
2. Install four mounting bolts (appropriate for your
application) to the wall. See "Figure 3. MCFA and
MCFB Indoor Unit Dimensions - Inches (mm)" on
page 6 to ensure proper positioning of the bolts.
3. Upon confirming the four bolts are level, correctly
spaced and secured to the wall; lift the unit onto the
brackets. Confirm the unit is level before continuing.
Field-Installed
Mounting Bolts
Factory Installed
Hanging Brackets
Figure 8. Hang Unit on Mounting Bolts
Locate a suitable position within the space where
maintenance access and supply air will not be restrict-
ed or affected by obstacles
Suspend the unit from a ceiling which is capable of
supporting the unit's weight
1. Remove the side panels and grille to expose factory-
installed hanging brackets on the sides of the unit
Grille
Side Panel