4
tion transmission. Ensure there is ample support for the
unit and all attached ductwork.
NOTE:
Unit must be mounted with access panel facing the
front as shown in following diagrams.
Blower Cabinet
Support
Access
Panel
Figure 4 - Attic Installation
Rods
Support
Access
Panel
Figure 5 - 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
refrigerant 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
Connections
section of this manual.
C
OUNTERFLOW
AND
H
ORIZONTAL
A
PPLICATIONS
Loosen motor mount and rotate motor (See Figure 6). Be
sure motor is oriented with the female connections on the
casing pointing down. If the motor is not oriented with the
connections pointing down, water could 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
insulation is the same as it was before loosening the motor
mount. This will ensure that the blower wheel is properly
spaced inside the blower housing.
FEMALE CONNECTIONS
SIDE VIEW
W
A
RN
IN
G
SO
F
T
W
A
RE
VE
R
.
TO
P
FRONT VIEW
Figure 6- MBVC Motor Orientation
E
LECTRICAL
C
ONNECTIONS
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. Knock-
outs have been provided on side and top of the cabinet for
the installation 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 require-
ments. Use Minimum 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.
HIGH
VOLTAGE!
T
O
PREVENT
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DISCONNECT
THE
ELECTRICAL
POWER
BEFORE
ELECTRICALLY
CONNECTING
THE
UNIT
.
WARNING
T
O
AVOID
THE
RISK
OF
FIRE
OR
EQUIPMENT
DAMAGE
,
USE
COPPER
CONDUCTORS
.
WARNING
T
O
AVOID
THE
RISK
OF
PERSONAL
INJURY
,
WIRING
TO
THE
UNIT
MUST
BE
PROPERLY
POLARIZED
AND
GROUNDED
.
CAUTION
A
LL
WIRING
MUST
COMPLY
WITH
APPLICABLE
LOCAL
AND
NATIONAL
CODES
.
T
YPE
AND
LOCATION
OF
FUSED
DISCONNECT
SWITCH
(
ES
)
MUST
COMPLY
WITH
ALL
APPLICABLE
CODES
AND
PROVIDE
OVERCURRENT
PROTECTION
AS
SHOWN
ON
THE
NAMEPLATE
.
WARNING
208/230 V
OLT
L
INE
C
ONNECTIONS
If heater kits will not be installed, remove the proper size
knockout for the electrical conduit connection. Connect elec-
trical conduit to the unit using two washers to make an ap-
proved connection.
Summary of Contents for MBVC
Page 14: ...14 APPENDIX A ...
