Clearances And Accessibility; Insulation; Installation Instructions; Blower With Cased Evaporator Coil Installation - Goodman MBE Series Installation Instructions Manual

Systems should be properly sized by heat gain and loss cal-
culations made according to methods of the Air Conditioning
Contractors Association (ACCA) or equivalent. It is the
contractor's responsibility to ensure the system has adequate
capacity to heat or cool the conditioned space.

CLEARANCES AND ACCESSIBILITY

The unit can be positioned for upflow, counterflow, horizontal
right or horizontal left operation. Zero clearance is allowed on
all sides for combustible materials. Thirty-six inches should be
allotted on the door side for maintenance and service.
To reduce risk of rusting, do not install the unit blower directly
on the ground or on a floor that is likely to be wet. In such
environments, the unit must be elevated by use of a sturdy,
nonporous material.

INSULATION

To ensure efficient operation, review the following precautions.
• If the unit is located in an area with high ambient tem-
perature and/or high humidity, the air handler may be
subject to nuisance sweating of the casing. On these
installations, a wrap of 2" fiberglass insulation with a
vapor barrier is recommended.
• The factory recommends insulating the duct running
through any unconditioned spaces.
To reduce operating sound and vibration transmission use flex-
ible canvas duct connections at the cabinet.

INSTALLATION INSTRUCTIONS

BLOWER WITH CASED
INSTALLATION
TOP CABINET
BOTTOM CABINET
Secure the coil and blower together with the two connector
plates and screws supplied in the blower bag assembly. Use
one connector plate and six screws on each side of the unit.
If accessory electric heat is to be added, install now per the
instructions shipped with the heater kit.

UPFLOW INSTALLATION

For upflow installations, the blower cabinet must sit on top of
the coil cabinet (Figure 2). NOTE: All panels should be in
place before installing the cabinet.
1. Place the blower and coil cabinet assembly upright on
the return duct or duct opening. Ensure that there is
ample support for the cabinet assembly and all attached
ductwork.
2. Connect refrigerant and condensate drain connections per
the evaporator coil installation instructions. Ensure re-
frigerant and drain lines do not interfere with service ac-
cess to the unit.
EVAPORATOR
Figure 1
3. Attach supply ductwork. Seal connections between unit
and ductwork as required to reduce/eliminate air leak-
age.
4. Make electrical connections as specified in "Electrical"
section of this manual.

COUNTERFLOW INSTALLATION

For counterflow installations, the evaporator coil cabinet must
sit on top of the blower cabinet (Figure 3). NOTE: All panels
should be in place when installing the unit.
COIL
figure 3 - Counterflow Application
NOTE: Supply ductwork for counterflow applications, must be
Class I. However, if combustible ductwork is used, sheet metal
protection is required.
1. Place the blower and coil cabinet assembly supply outlet
on the supply duct or duct opening. Ensure there is ample
support for the unit and all attached ductwork.
2. Connect refrigerant and condensate drain connections per
the evaporator coil installation instructions. Ensure re-
frigerant and drain lines do not interfere with service ac-
cess to the unit.
3. Attach return ductwork. Seal connections between unit
and ductwork as required to reduce/eliminate air leak-
age.
4. Make electrical connections as specified in "Electrical"
section of this manual.
3
Figure 2 - Upflow Application