Heat Controller EKTC Cooling Only, EKTH Heat Pumps Owner's Manual
OWNER’s MANUAL
Packaged Terminal
Air Conditioners & Heat Pumps
7,000-15,000 BTUH
Cooling with Electric Heat
EKTC07-1G
EKTC09-1G
EKTC12-1G
EKTC15-1G
Heat Pump with Electric Heat
EKTH07-1G
EKTH09-1G
EKTH12-1G
EKTH15-1G
EKTC07-2G
EKTC09-2G
EKTC12-2G
EKTC15-2G
EKTH07-2G
EKTH09-2G
EKTH12-2G
EKTH15-2G
Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com
Packaged Terminal A/C OWNER’S MANUAL Heat Controller
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CONTENTS
SYSTEM CONFIGURATION
HOW TO CONNECT
SAFETY CONSIDERATIONS
GENERAL INFORMATION
UNIT FEATURES
ELECTRICAL DATA
INSTALLATION
OPERATION
CARE AND CLEANING
PREVENTATIVE MAINTENANCE
TROUBLESHOOTING
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TABLE OF CONTENTS
Safety Considerations ........................................................................................................ 2
General Information .......................................................................................................... 2
Unit Features ...................................................................................................................... 3
Electrical Data .................................................................................................................... 5
Installation .......................................................................................................................... 6
How to Connect .................................................................................................................. 9
System Conguration .......................................................................................................10
Operation ..........................................................................................................................13
Care and Cleaning ............................................................................................................ 14
Preventative Maintenance ............................................................................................... 15
Troubleshooting ................................................................................................................16
The figures in this manual may be different with the material objects, please refer
to the material objects for reference.
This symbol stands for the items
should be forbidden
This symbol stands for the items
should be followed
Do not dispose this product as unsorted municipal waste.
Collection of such waste separately for special treatment
is necessary.
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Heat Controller OWNER’S MANUAL Packaged Terminal A/C
Safety Considerations
Recognize safety information. This is the safety-alert symbol .When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION. These
words are used with the safety-alert symbol.
DANGER identies the most serious hazards which will result in severe personal injury or death.
WARNING signies hazards which could result in personal injury or death.
CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
WARNING
!
!
PERSONAL INJURY AND/OR PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in personal injury, death and/or property damage. For your safety, the
information in this manual must be followed to minimize the risk of re or explosion, electric shock, or to prevent
property damage, personal injury, or loss of life.
• This unit must be properly installed in accordance with the Installation Instructions before it is used.
• Immediately repair or replace all electric service cords that have become frayed or otherwise damaged.
• Unplug or disconnect the unit at the fuse box or circuit breaker before making any repairs.
NOTE: We strongly recommend that any servicing be performed by a qualied individual.
GENERAL INFORMATION
Heat Controller package terminal air conditioners and heat pumps provide a high standard of quality in performance, workmanship, durability and appearance as they heat and cool the occupied air space year round.
This manual provides information for ease of installation, operation and maintenance. All models are designed for through-thewall installation. Separate installation instructions are included with all accessory components.
BEFORE YOU BEGIN
Read these instructions completely and carefully.
IMPORTANT: Save these instructions for local inspector’s use.
IMPORTANT: Observe all governing codes and ordinances.
NOTE TO INSTALLER
Be sure to leave these instructions with the owner.
NOTE TO OWNER
Keep these instructions for future reference. Be sure to write down the model and serial number of unit on space provided
on back page. The model and serial number can be located on the serial number plate attached to unit. These numbers are
required for service. See Fig. 1.
Fig. 1 – Sample Data Information Plate
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Packaged Terminal A/C OWNER’S MANUAL Heat Controller
UNIT FEATURES
This unit has many exciting features which are different than those found on
standard PTAC models. The owner must be familiar with these features in order to
fully understand the operation and capability of the unit.
• SELF DIAGNOSITICS—The unit has an onboard computer that utilizes real-
time diagnostics to prolong the life of your unit. There is an LED indicator on
the control board located behind the front panel, that will ash an error code
if the unit has detected some kind of fault condition. In many cases, the unit
will automatically clear the fault condition and continue operating with no
interruption. In some cases, the condition cannot be cleared and the unit will
require service. In those cases, an “Fx” failure mode will be displayed on the
digital display. For a detailed list of all error codes and “Fx” conditions, see
Table 6—Status LED Indicator Denitions for further details.
• AUTO RESTART—If power is lost, all of the control settings (setpoint, mode,
fan speed, on/off and conguration) are stored. So when power is restored, the unit will start back up in the mode (and conguration) it was in when power was lost.
• QUIET OPERATION—The unit has 2 fan motors and a tangential blower wheel to reduce noise. The indoor fan will always run
a minimum of 10 seconds before the compressor, to help reduce any compressor starting noise.
• RANDOM COMPRESSOR RESTART—To help prevent power surges after a power outage (from many of your PTAC/HPs starting
at the same time), the compressor is equipped with a 2:45 to 3:15 minute random restart delay feature.Whenever the unit is
plugged in, or power has been restarted, a random compressor restart will occur between the random restart time frame.
• COMPRESSOR PROTECTION—To prevent short cycling of the compressor and maximize it’s life, there is a random start--up
delay of 3 minutes on the compressor and a minimum compressor run time of 3 minutes.
•AUTOMATIC ROOM FREEZE PROTECTION—The unit will automatically will keep the temperature in the room from getting
too cold, where water pipes might freeze. If the unit is congured for the freeze protection feature to be active (which is the
default condition), and while power is supplied to the unit, if the unit senses temperature below 40°F, the fan motor and
electric heater are turned on and will warm the room to 50°F. If Freeze protection is not required, change the conguration
switch to turn the feature off (see section on unit conguration).
• AUTOMATIC DEFROST PROTECTION (FOR HEAT PUMP MODELS ONLY)—When the outdoor temperature gets too cold (ap-
prox. 35°F) and the unit can no longer effectively heat with the compressor, the unit will automatically switch to electric heating. The unit will then heat with electric heat until the outside temperature rises enough (approx. 40°F), so the compressor
can be used to effectively heat again.
• AUTOMATIC QUICK WARM-UP (FOR HEAT PUMP MODELS ONLY)—If the room temperature falls to 5°F below the set point
temperature, the reverse cycle heat is shut off and the electric strip heat is turned on for one cycle, until heating is satised.
•LED INDICATOR’S AND BUTTONS—The touch pad has buttons for MODE, FAN SPEED, ON/OFF, SETPOINT UP and SETPOINT
DOWN. It also has LEDs that correspond to the mode, fan speed and setpoint operation, to indicate the unit’s status. The
LEDs below the mode button, FAN, COOL, and HEAT, indicate which operating mode is active. The LEDs below the Fan button,
Low, Med and Hi, indicate the fan speed that is selected. The LED located in the lower right corner is the unit On/Off status
LED. If the unit is in ON mode, the LED will be green. If the unit is OFF, the LED will be red.
• CONFIGURE FAN TO OPTIMIZE SELECTED APPLICATION—This unit can be optimized to specic applications by conguring
the fan to run in a continuous mode or to cycle on and off with the compressor and electric heater (can be different for both
heating and cooling modes). In cycle mode, fan will continue to run after compressor or electric heater stops in order blow off
any residual heat or cool left on coil. In continues mode, the fan remains on at all times even when the compressor is off.
Table 6—STATUS LED Indicator Denitions
1 Indoor air temp sensor open/short 7 Segment display ‘F1’, with STATUS light ash 1 time,off 2 seconds
2 Indoor coil sensor open/short 7 Segment display ‘F2’, with STATUS light ash 2 times and off 2 seconds
3 Outdoor coil sensor open/short 7 Segment display ‘F4’, with STATUS light ash 4 times and off 2 seconds
4 Freeze Guard protection 7 Segment display ‘FP’
5 Thermostat wiring error STATUS light ash 9 times and off 3 sec, repeat
6 Indoor coil high temp protection STATUS light ash 8 times and off 3 sec, repeat
7 Defrost (heat pump type) STATUS light ash 7 times and off 3 sec, repeat
8 Outdoor coil high temp protection STATUS light ash 6 times and off 3 sec, repeat
9 Indoor coil freeze protection STATUS light ash 5 times and off 3 sec, repeat
NOTE: When status light is ashing, it will be ON for 0.5 seconds and OFF for another 0.5 seconds.
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Heat Controller OWNER’S MANUAL Packaged Terminal A/C
Unit Features CONTINUED
• Unit Conguration —There are many different conguration possibilities, through both dipswitches and the digital keypad,
that allow you to congure the unit for your exact application. See section on unit conguration for more details. Following
are the conguration selections that have not previously been mentioned:
• °F or °C—The unit can display in either °F or °C
• Indoor Temperature Sensor Biasing —Optimize the room temperature sensor reading to your exact
application (one for cooling and another for heating).
• Emergency Heat (forHeat Pump Only)—Disable the compressor during heating mode operation (heat
only with Electric Heat).
• Display Setpoint OR Room Temperature—The unit can be congured to display the room temperature
OR setpoint only, during heating and cooling modes. See section on unit conguration for more details.
• Limit the Setpoint Range—The unit can be congured to limit the controlling setpoint range.The display
will always show the complete setpoint range, but the controlling setpoint will be limited to the congured
minimum and maximum setpoint selected. See section on unit conguration for more details.
• Energy Management—Sometimes known as Front Desk Control, an input is provided so that the unit can
be manually disabled from a different location. If the unit detects 24 vac on this input, it will automatically
turn itself off. If no voltage is detected on the input, the unit will run normally.
• Wall Thermostat Control—A wired wall thermostat can be connected to the unit. If it is, the unit must be
congured to disable the keypad. See section on wired inputs and unit conguration for more details.
UNIT NOMENCLATURE
EKTC—Cooling only with Electric Heat
EKTH—Heat Pump with Electric Heat
EKTC 07 - 1 G
BTU/H
07K
09K
12K
15K
Fig. 3 – Unit Nomenclature
VOLTAGE CODE
1=208/230V-60Hz
2=265V-60Hz (consult factory)
MODEL REVISION
G=Green R-410A
Refrigerant Gas
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Packaged Terminal A/C OWNER’S MANUAL Heat Controller
ELETRICAL DATA
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death and/or property damage. DO NOT alter cord or plug or use an extension cord.
POWER CONNECTION OPTIONS
Appropriate power cord accessory kit is determined by the voltage, and amperage of the branch circuit. The unit does not come
with a power cord (or hard wire kit). An accessory power cord kit must be ordered to connect the unit to the outlet. If the unit is
to be hard wired, an accessory hard wire kit must be ordered.
IMPORTANT: For 265V units, if a power cord is selected, it must plug into the 265V subbase accessory.
Be sure that your outlet matches the appropriate blade conguration of the plug and that it is within reach of the service cord.All
wiring, including installation of the receptacle, must be in accordance with the NEC and local codes, ordinances and regulations.
National codes require the use of an arc fault or leakage current detection device on all 208/230V power cords. Be sure to select
the correct cord for your installation.
ALL UNITS
Wire Size
Use recommended wire size given in Table 1 and install a single branch circuit.All wiring must comply with local and national
codes. All units are designed to operate off ONE single branch circuit only.
NOTE: Use copper conductors only.
Table 1—SUGGESTED BRANCH CIRCUITWIRE SIZES*
NAMEPLATE AMPS
7.0 to 12 14
12.1 to 16 12
16.1 to 24 10
AWG WIRE SIZE
LEGEND
AWG --- American Wire Gauge
* Single circuit from main box.
Based on copper wire at 60°C temperature rating.
Grounding
For safety and protection, the unit is grounded through the service cord plug or through separate ground wire provided on
hard wired units. Be sure that the branch circuit or general purpose outlet is grounded.
VOLTAGE SUPPLY
Check voltage supply at outlet. For satisfactory results, the voltage range must always be within the ranges found on the
data information plate.
Cord-connected Units
The 250V eld supplied outlet must match the plug for the standard 208/230V units and be within reach of the service
cord. The standard cord-connected 265V units require an accessory electrical subbase for operation. Refer to Table 2 for
proper receptacle and fuse type.
Power Cord Protection
The power cord for 230/208v units provide power cord re protection.Unit power automatically disconnects when unsafe conditions are detected. Power to the unit can be restored by pressing the reset button on plug head. Upon completion of unit instal-
lation for 230/208V models, an operational check should be performed using the TEST/RESET buttons on the plug head.
NOTE: The 265V models do not incorporate this feature as they require use of the electrical subbase accessory.
Table 2—RECEPTACLES AND FUSE TYPES: 250, 265 VOLTS
LEGEND
HACR—Heating, Air Conditioning, Refrigeration * May be used for 15 amp applications
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