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PROPER INSTALLATION
POWER CORD REQUIREMENTS
230/208 Volt Units
265 Volt Units
Heater Size
Power Cord Rating
Power Cord Rating
(kW)
(amp)
(amp)
1.5
15
20
2.5
15
20
3.5
20
Not Applicable
3.7
Not Applicable
20
5
30
30
NOTE: Heaterless units are shipped with an auxiliary data label
on the front side of the mid-partition panel. If an electric heater
kit is field installed, the installer must mark the appropriate
box on the label to indicate the electric heater capacity. If no
heater is installed, the box labeled “None” must be marked.
Refer to the unit nameplate for over current protection data.
CAUTION
DO NOT INSTALL A 5kW HEATER KIT IN ANY 7,000
OR 9,000 BTU CHASSIS.
OPERATING CONTROLS
Users Controls
Two rotary knobs controlling temperature and operational mode
are located behind the control door located to the top-right of
the cabinet front.
High
High
Heat
Cool
Fan
Warm
Cool
Only
Mode Switch
Thermostat
Thermostat Setting
Turning the thermostat control clockwise will provide a cooler
room temperature; turning it counterclockwise will provide a
warmer room temperature. Adjusting the thermostat to the mid
setting (vertical) will set the room temperature at approximately
75° F.
Mode Switch
The table below describes the unit function corresponding to
the various mode switch settings.
MODE SWITCH SETTINGS
Switch
Unit Function
Position
Unit is completely off. However, before servicing, open all
OFF
disconnects and/or remove plug.
FAN ONLY Unit operates on low fan speed to circulate room air.
Unit operates on the low fan speed to circulate air
LOW COOL
for cooling.
Unit operates on high fan speed to circulate air
HIGH COOL
for cooling.
Unit operates on the low fan speed to circulate air
LOW HEAT
for heating.
Unit operates on the high fan speed to circulate air
HIGH HEAT
for heating.
Additional Control Inputs (Not used on NTE or NTP Models)
The control inputs shown below provide addition unit control
and features. To access these control inputs, the cabinet front
must be removed (see Front Removal).
ON/OFF
W2 Y\W1
C
B
LED1
ON
A
ON/AUTO
RMT/STD
FAN
EH IN LS FD1 FD2 TF1 TF2 C R GL W2 Y/W1B GH
CONTROL
TF-
LS
Furthermore, to access the 24V accessory input connections,
the terminal strip cover must be removed as shown (A and B
Series units only).
Mode Switch
Terminal Strip
Cover
Master Switch (Not used on NTE or NTP Models)
The master switch disconnects power to all of the system com-
ponents. When this switch is in the off position, the compres-
sor, fan motor, reversing valve, and electric resistance heater
will all be de-energized.
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