Horizontal Installation; Electrical Connections; High Voltage Wiring - Goodman MBE Series Installation Instructions Manual

HORIZONTAL INSTALLATION

For horizontal installations, the coil cabinet must be upstream
of the blower cabinet (Figures 5 and 6). NOTE: All panels
should be in place when installing the unit.
1. Set the unit near its final installation place. The unit must
be supported along the entire length of the unit. Rubber
isolation pads may be used to reduce sound and vibration
transmission. Ensure there is ample support for the unit
and all attached ductwork.
Blower Cabinet
FIGURE 5 - Attic Installation
Rods
FIGURE 6 - Hanging Installation
2. If installed above a finished ceiling or living space, be sure
to put a secondary drain pan under the entire unit, and
pipe the drain separately from the main condensate drain.
3. Connect refrigerant and condensate drain connections per
the coil section installation instructions. Ensure refriger-
ant and drain lines do not interfere with service access to
the unit.
4. Attach return and supply ductwork. Seal connections.
5. Make electrical connections as specified in "Electrical"
section of this manual.
MBE Only: Counterflow and Horizontal Applications
Loosen motor mount and rotate motor (See Figure 4). Be sure
motor is oriented with the female connections on the casing
pointing down. If the motor is not oriented with the connec-
tions pointing down, water will collect in the motor and cause
premature failure.
NOTE: After rotating motor, tighten motor mount to secure
motor. Be sure that the gap between the motor and the insu-
lation is the same as it was before loosening the motor mount.
This will ensure that the blower wheel is properly spaced in-
side the blower housing.
Air Flow
Support
Air Flow
Support
FRONT VIEW
FOR OPTIONAL
SAFETY GND USE
MOUNTING BOLTS
FIGURE 4 - MBE Motor Orientation

Electrical Connections

Consult the local power company and local codes before in-
stalling this unit. All wiring must be in accordance with the
National Electrical Code as well as all local codes. Knockouts
have been provided on side and top of the cabinet for the instal-
lation of the electrical conduit. If the knockouts on the cabinet
sides are used for electrical conduit, an adapter ring must be
used in order to meet UL1995 safety requirements. Use Mini-
mum Circuit Ampacity and type of wire to determine proper
wire size. The unit MUST be properly grounded. A ground lug
is provided in the unit.
Check all factory connections before connecting electrical power
to unit to ensure none were loosened or disconnected during
shipping and handling.
TO PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK,
DISCONNECT THE ELECTRICAL POWER BEFORE ELECTRICALLY CONNECTING
THE UNIT.
TO AVOID THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY OR FIRE
USE ONLY COPPER CONDUCTORS.
TO AVOID THE RISK OF PERSONAL INJURY, WIRING TO THE UNIT MUST BE
PROPERLY POLARIZED AND GROUNDED.
ALL WIRING MUST COMPLY WITH APPLICABLE LOCAL AND NATIONAL CODES.
TYPE AND LOCATION OF FUSED DISCONNECT SWITCH(ES) MUST COMPLY
WITH ALL APPLICABLE CODES AND PROVIDE OVERCURRENT PROTECTION AS
SHOWN ON THE NAMEPLATE.

HIGH VOLTAGE WIRING

If heater kits will not be installed, remove the proper size knock-
out for the electrical conduit connection. Connect electrical
conduit to the unit using two washers to make an approved
connection.
The power supply wires must be connected to the red and
black power wiring. Two wire nuts are provided in the bag
assembly for this connection. Wrap the wire nuts with electri-
4
SIDE VIEW
FEMALE CONNECTIONS
CAUTION
WARNING