20
230/208 Volt Units
265 Volt Units
Power Cord Rating
(amp)
Power Cord Rating
(amp)
1.5
15
20
2.5
15
20
3.5
20
Not Applicable
3.7
Not Applicable
20
5
30
30
POWER CORD REQUIREMENTS
Heater Size
(kW)
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.
Warm
Cool
Fan
Only
High
Heat
High
Cool
Thermostat
Mode Switch
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.
Switch
Position
Unit Function
OFF
Unit is completely off. However, before servicing, open all
disconnects and/or remove plug.
FAN ONLY Unit operates on low fan speed to circulate room air.
LOW COOL
Unit operates on the low fan speed to circulate air
for cooling.
HIGH COOL
Unit operates on high fan speed to circulate air
for cooling.
LOW HEAT
Unit operates on the low fan speed to circulate air
for heating.
HIGH HEAT
Unit operates on the high fan speed to circulate air
for heating.
MODE SWITCH SETTINGS
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).
W2 Y\W1
ON/OFF
ON
LED1
EH IN LS FD1 FD2 TF1 TF2 C R GL W2 Y/W1B GH
RMT/STD
CONTROL
FAN
C
B
A
ON/AUTO
LS
TF-
Furthermore, to access the 24V accessory input connections,
the terminal strip cover must be removed as shown
(A and B
Series units only).
Terminal Strip
Cover
Mode Switch
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.
PROPER INSTALLATION
