Service Clearances
The units require minimum clearances for access on
all sides for routine maintenance. Filter replacement,
drain pan inspection and cleaning, fan bearing
lubrication and belt adjustment are examples of
routine maintenance that must be performed. Blower
and motor assemblies, coil and filter sections are
always provided with a service door or panel for
proper component access. Clearances for component
removal may be greater than the service clearances,
refer to drawings for these dimensions.
Additional clearances for units with
Packaged DX
Clearances must be maintained on all sides of
this model. This especially is true with the top of
this unit. Hot air is being discharged through the
condensing fans during operation, and the more
clearance available, the better the chance of avoiding
recirculation or coil starvation. This unit should never
be placed under an overhang or inside a building. A
minimum of 48 inches over the condensing fans is
recommended.
Handling Concerns for Units with
Packaged DX
While this unit was constructed with quality and
dependability in mind, damage still may occur during
handling of the unit for installation. Exercise extreme
caution to prevent any damage from occurring to the
refrigerant system. This unit contains a system that
is pressurized with refrigerant and if it is damaged,
the refrigerant could leak into the atmosphere or
cause bodily harm due to the extreme cold nature of
expanding refrigerant. Use protective equipment such
as gloves and safety glasses to minimize or prevent
injury in case of a system leak during installation.
IG FURNACE
CONDENSER
FANS
CONDENSING COIL
36 inches
42 inches
42 inches
66 inches
Lifting
1. Before lifting, be sure that all shipping material
has been removed from unit.
2. To assist in determining rigging requirements,
weights are provided in the Unit Weights &
Dimensions section on page 5.
3. Unit must be lifted by all lifting lugs provided at
the top of the unit.
4. Rigger to use suitable mating hardware to attach
to unit lifting lugs.
5. Spreader bar(s) must span the unit to prevent
damage to the cabinet by the lift cables.
6. Always test-lift the unit to check for proper
balance and rigging before hoisting to desired
location.
7. Never lift units by weatherhoods.
8. Never lift units in windy conditions.
9. Preparation of curb and roof openings should be
completed prior to lifting unit to the roof.
10. Check to be sure that gasketing has been
applied to the curb prior to lifting the unit and
setting on curb.
11. Do not use fork lifts for handling unit.
6
Model MPX Make-Up Air Unit
Model XMPX Make-Up Air Unit
