10/04/2007 8
NI802
Horizontal, Air Conditioning
Similar to upflow above, the air conditioning coil is positioned at the blower outlet. Depending upon the
coil type and drip pan it is positioned in a field constructed plenum as required.
As horizontal, the return air would enter the blower end of the cabinet with a typical packaged 20” x 20”
filter cabinet.
Horizontal, Heat Pump
As emphasized above, the heat pump coil must be at the blower inlet. Depending upon the coil physical
arrangements and drip pan, it is installed in a field constructed plenum at the blower inlet.
Typically a package filter cabinet is installed at the entrance (or ahead of) of the HP coil.
The blower outlet goes directly into the distribution duct system.
Blower Motor Orientation
If the installation is not upflow, the blower motor shall be positioned so the power and control connectors
are down. This will prevent water from entering the blower motor through the connector housing
opening.
Loosen motor mount clamp and rotate motor accordingly.
Before tightening motor mount clamp be sure the blower wheel is properly centered inside the blower
housing.
Electrical Installation
WARNING
TO AVOID THE RISK OF ELECTRIC SHOCK OR DEATH, WIRING TO THE UNIT MUST BE
PROPERLY GROUNDED. FAILURE TO PROPERLY GROUND THE UNIT CAN RESULT IN A
HAZARD LEADING TO PERSONAL INJURY OR DEATH.
Line Voltage
The nameplate and/or Installation and Operating Manual specification page provides kW rating and
operating current requirements for each specific model. Select the proper wire size to comply with your
type of wire routing and NEC field wiring requirements.
Field connection is at this product’s furnished circuit breaker. This integrated circuit breaker is a proper
local disconnect.
WARNING
USE ONLY COPPER WIRE FOR CONNECTION TO THE CIRCUIT BREAKER TERMINALS AND
INSIDE THIS PRODUCT’S CABINET.
If the 240 power service is to be wired as single feed, order option circuit breaker single feed bus bar, part
number 5701.
WARNING
DISCONNECT ALL ELECTRICAL POWER BEFORE ELECTRICALLY CONNECTING OR
SERVICING THE UNIT. FAILURE TO DISCONNECT THE ELECTRICAL POWER BEFORE
WORKING ON THIS PRODUCT CAN CREATE A HAZARD LEADING TO PERSONAL INJURY
OR DEATH.
