8
G
Y
W
R
R
W
Y
G
From
Unit
Figure 6
Typical Thermostat and Unit 24 V Wiring
Hookup
Vl. Circulating Air and Filters
AIRFLOW CONVERSION
Units can easily be converted from horizontal to vertical
airflow delivery.
Units will ship from the factory ready for horizontal airflow. If
conversion to vertical airflow is necessary, proceed as
follows:
NOTE: Refer to Specification Sheet shipped with the unit or
the unit Rating Plate for approved duct orientation, before
using down discharge openings.
•
Cut insulation around bottom openings and remove
panels from the bottom of the unit, saving the screws
holding the panels in place.
•
Use horizontal duct cover kit.
Figure 7
Horizontal Duct Cover Kit
DUCTWORK
Duct systems and register sizes must be properly designed
for the C.F.M. and external static pressure rating of the unit.
Ductwork should be designed in accordance with the rec-
ommended methods of Air Conditioning Contractors of
America Manual D (Residential) or Manual Q (Commercial).
Electrical Power Directly To Junction Box
Electrical Power Routed Through
Bottom of Unit
Figure 5
Typical Electrical Wiring
UNIT VOLTAGE
The unit transformer is factory connected for 230V opera-
tion. If the unit is to operate on 208V, reconnect the trans-
former primary lead and induced draft blower motor leads as
shown on the unit wiring diagram.
HEAT ANTICIPATOR SETTING
The heat anticipator in the room thermostat must be cor-
rectly adjusted to obtain the proper number of heating cycles
per hour and to prevent the room temperature from over-
shooting the room thermostat setting. Heat anticipator must
be set at 0.4 amps.