Heat Controller PTAC07A230A User manual

Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • [phone] • www.heatcontroller.com
OWNER’S MANUAL
Packaged Terminal
Air Conditioners & Heat Pumps
7,000-15,000 BTUH
Cooling with Electric Heat
PTAC07A230A
PTAC09A230A
PTAC12A230A
PTAC12A250A
PTAC15A250A
PTAC15A230A
Heat Pump with Electric Heat
PTHP07A230A
PTHP09A230A
PTHP12A230A
PTHP12A250A
PTHP15A250A
PTHP15A230A

THE FOLLOWING WARNINGS ARE
VERY IMPORTANT FOR SAFETY.
PLEASE READ THEM CAREFULLY
BEFORE INSTALLATION!
1. This air conditioner must be installed by a
certicated installer.
2. Please insure that there is an available ground in
the power supply system before installation.
3. To avoid electric shock or death, the socket
or terminal blocks for power supply to the air
conditioner(include 277V and 115V and 208-230V
series and the units that have LCDI power cord)
must have a Ground Fault Circuit Interrupter.
4. During installation, do not cross connect or reverse
L1 and neutral. Please be sure the ground wire is
rmly connected otherwise it is possible to result in
electrical shock or death.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION
WARNING
THE MANUFACTURER WILL NOT BE RESPONSIBLE
FOR ANY INJURY OR PROPERTY, DAMAGE
ARISING FROM IMPROPER SERVICE OR
SERVICE PROCEDURES. IF YOU INSTALL OR
PERFORM SERVICE ON THIS UNIT, YOU ASSUME
RESPONSIBILITY FOR ANY PERSONAL INJURY OR
PROPERTY DAMAGE WHICH MAY RESULT, MANY
JURISDICTIONS REQUIRE A LICENSE TO INSTALL
OR SERVICE HEATING AND AIR CONDITIONING
EQUIPMENT.
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE
SERVICING OR INSTALLING THIS UNIT.
MULTIPLE POWER SOURCES MAY BE PRESENT,
FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH
PACKAGED TERMINAL A/C OWNER’S MANUAL Heat Controller
1
CONTENTS
UNIT FEATURES ...................................................... 2
INSTALLATION INSTRUCTION................................ 4
WIRING ..................................................................... 8
OPERATING INSTRUCTIONS
(Accessory Optional). ................................................ 9
MAINTENANCE AND CLEANING............................11
NORMAL OPERATING SOUNDS
AND CONDITION.................................................... 13
DIAGNOSTIC CODES ............................................ 13
TROUBLE SHOOTING ........................................... 14
IMPORTANT NOTES:
Before using this manual, check the serial plate for
proper model identication.
The installation and servicing of this equipment must
be performed by qualied, experienced technicians
only.
Due to policy of continual product improvement, the
right is reserved to change specications and design
without notice.
IMPORTANT NOTE TO THE OWNER
The service portion of this manual is to be used by
qualied,professionally trained HVAC technicians
only. The manufacturer does not assume any
responsibility for property damage or personal injury
for proper service procedures or services performed
by an unqualied person.
IMPORTANT NOTE TO THE SERVICER
Read this manual and familiarize yourself with the
specic items which must be adhered to before
attempting to service this unit. The precautions
listed in this Installation Manual are intended as
supplemental to existing practices. However, if there
is a direct conict between existing practices and the
content of this manual, the precautions listed here
take precedence.
!
!

Heat Controller OWNER’S MANUAL Packaged Terminal A/C
2
UNIT FEATURES
This unit has many features which are different than
those found on conventional PTAC units. The servicer
must be familiar with these features in order to
property handle the unit.
• Automatic 3-minute compressor lockout - After
the compressor cycles off, it will not restart for three
minutes.
• Random restart delay - To help eliminate power
surges after a power outage, the unit Is equipped
with a two to four minute random restart delay
feature. Whenever the unit is plugged In with the
master switch turned on and the mode switch set in
the cool or heat mode, a random restart will occur.
• Indication LEDs - The control panel has LEDs that
correspond to fan operation and to Indicate unit
status. The LEDs next to the selections ON/OFF,
FAN, COOL, and HEAT indicate which operational
mode Is active.
• High Pressure Protection - The unit will shut off
automatically when the pressure in the system
is over 638 psi and within 10 minutes, after the
compressor turns off, the unit will restart when the
pressure turns back below 551 psi. This protection
can effectively avoid the burst and leakage of
pipes, lessen the system failures and prolong the
service life.
• Failure Tolerance - If the unit is in protection mode
less than 4 times in one hour, the accumulation
times will reset to avoid system failure. Only when
the unit enters protection mode more than 4 times in
one hour will the system fail to restart automatically
and need manual restart.
• Standard Physical Dimensions - The series PTAC
uses standard same dimensions, 42” wide x 16”
high x 13-3/4” deep.
Replacement of older units is made easy.
• Weather - Protected Electrical Components
-Vital electrical components are protected from the
weather by locating them on the indoor side of the
weather barrier.
• Highly Featured Microprocessor Controls
- Microprocessor controls are programmed to
interface with the temperature sensors to maximize
comfort conditions for the room occupant.
Thermistors are used to sense small changes in
temperature to give excellent room control and
allow the microprocessor to monitor and react to
changing conditions.
• Automatic Emergency Heat on Heat Pump
Units-Automatically uses electric resistance heat if
the heat pump falls.
• High-Temperature Heat Pump Operation
Protection
-Automatically protects the compressor if heat pump
is operated with high indoor coil temperatures.
Power to the outdoor fan and the compressor
are turned off if the indoor coil gets too hot during
heat pump operation to prevent damage to the
compressor.

PACKAGED TERMINAL A/C OWNER’S MANUAL Heat Controller
3
• Fan Motors Permanently Lubricated - All units
have two fan motors for quiet operation and
maximum operating efciency.
Motors are permanently lubricated to reduce
maintenance and totally enclosed to keep dirt and
water out of the motor windings.
• Indoor Fan Speed Selections LOW /HIGH/AUTO
- Unit may be operated in low, high or auto fan
speeds. Some speeds may not be present based
on unit capacities.
• Rotary Compressor - smoother operation for quiet,
dependable service and high efciency.
• Indoor Coil Frost Control - prevents indoor coil
from freezing. Frost can form on the Indoor coil
when the unit is operated in cooling when the
outdoor temperature is low. The unit automatically
shuts the compressor off until the indoor coil
temperature warms to the point where frosting will
no longer occur, then restarts the compressor.
• LS Control (front-desk control) - The unit can
be turned ON/OFF by a front desk control switch.
The control wire, colored purple, locates in the wall
mounted thermostat interface (refer to Fig. 7 on
page 8).
The control logic as belows:
1. Turn ON unit: short circuit R and LS then release
one time within 5 seconds.
2. Turn OFF unit: short circuit R and LS then release
for twice within 5 seconds.
3. Force unit shut down for one time: connect LS to R
for over 5 seconds and then release.
NOTE: After force shut down, you can turn the unit
ON again by hand-held remote controller or the
control panel.
• Special control functions for DIP switches - The
DIP switches are on main board. No. 5 auto
heating (for units with heat). When unit is connected
to the power supply, and room temperature Is
lower than 10°C/50°F for 3 minutes, unit will start
heating automatically no matter what the setting
mode is. Only when room temperature reaches
13°C/55°F will heating stop.
ON position enables this function.
No. 6 -Electric Power-off Memory. After power on,
the unit will run the same settings as last time.
ON position enables this function.
No. 7-Fan CON/CYC for heating.
ON position enables continuous fan for heating. The
default setting Is fan cycled for heating.
No. 8 -Fan CYC/CON for cooling ON position
enables fan cycle for cooling. The default setting is
fan continuous for cooling.
WARNING: Before service, you must disconnect
the power cord to avoid electric shock! Do not
reprogram DIP switches No. 1 to No. 4, when
powered this could cause damage or re. Power the
unit on again, the new function will be activated.
UNIT ACCESSORIES
This unit is designed for through-the-wall installation
in new or existing buildings. To complete the
installation of this PTAC, an insulated wall sleeve and
an outdoor grille (either the stamped aluminum
grille, or the architectural grille) are required.
Consult with your distributor to acquire any optional
accessories.
The chassis and the cabinet front are shipped in one
carton.
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT. MULTIPLE POWER
SOURCES MAY BE PRESENT,FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE,PERSONAL
INJURY OR DEATH.
!

Heat Controller OWNER’S MANUAL Packaged Terminal A/C
4
SLEEVE INSTALLATION
Wall sleeve location
When making the wall opening, please observe the following requirements:
A) The air inlet and outlet should be unblocked so the air can be delivered to every corner of the room.
B) Install the unit in places that are away from heat or sources of ammable gases.
C) Do not install the unit in places that are subject to heavy dust.
D) Do not install the unit in places where the operational noise and exhausted air might trouble your neighbor.
E) There should be sufcient space around the unit to facilitate maintenance and repairs
(refer to Figs. 1 and 2).
INSTALLATION INSTRUCTIONS
To ensure that the unit operates safely and efciently, it must be installed, operated and maintained according
to these installation and operating instructions and all local codes and ordinances or,in their absence, with the
latest edition of the National Electric Code (or CEC for Canadian Installations). The proper installation of this
unit is described in the following sections. Following the steps in the order presented should ensure proper
installation.
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT. MULTIPLE POWER
SOURCES MAY BE PRESENT, FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH.
!
Dimension Recommended installation clearance
D1 Projection of case into room - 1/2” minimum up to 1-3/4”
maximum without use of electrical sub-base.
Note: 2-3/8” minimum when sub-base is used.
D2 Height above nished oor or top of carpet - 1/2” minimum
2” recommended without sub-base - 3” minimum with sub-base.
Fig. 1 Fig. 2
WARNING
REMOVE FRONT PANEL, DO NOT DIRECTLY
TOUCH THE FIN.
!

OUTDOOR GRILLE
(OPTIONAL ACCESSORY)
An outside grille must be Installed to direct air ow for
proper unit operation and also protect the outdoor
coil. The grille must be installed before installing
the chassis. When replacing an old chassis with an
existing grille or using a specialized grille In a new
Installation, please check with after-sales engineer
of supplier to determine if the new chassis should
be used with the nonstandard specialized grille.
An improper outdoor grille can decrease cooling or
heating capacity,increase energy usage and shorten
compressor life and possibly void the warranty.
5
Preparation of the Wall
The sleeve should be installed during construction
and lintels should be used to support the block above
the wall sleeve. The sleeve can not support the load
of bricks/ blocks.
For existing construction, wall opening must be
created,the proper dimensions are necessary to
avoid use of llers or additional framing .The sleeve is
modular in height and width (refer to Fig. 3 & Chart 2).
Height:
Fits 2 courses concrete block
Fits 6 courses standard brick
Fits 5 courses jumbo brick
Width: Fit approximately 3 stud spaces.
In order for condensate water to drain properly inside
the unit, the sleeve must be installed properly:
• Level from right to left.
• A slight downward pitch from the indoor side to the
outdoor side as shown below Fig. 4).
• Fasten the wall sleeve (Fig. 5).
STAMPED ALUMINUM GRILLE
ARCHITECTURAL GRILLE
Fig. 5
Fig. 3
Fig. 4 Proper Sleeve Tilt
Minimum Finished
Opening Dimensions Approximate Sleeve Dimensions
Height Width Height Width Depth
16-1/4” 42-1/2” 16” 42” 13-3/4”
Note: Sleeves may vary slightly by manufacturer.
Ensure that the unit ts the sleeve before installation.
Chart 2
PACKAGED TERMINAL OWNER’S MANUAL Heat Controller

6
CHASSIS INSTALLATION
1. Remove the cabinet front from the chassis as
described In Front Removal.
2. Insert the chassis into the wall sleeve.
IMPORTANT NOTES:
1. The unit is equipped with a rubber grommet
mounted compressor. These grommets are factory
set and require no adjustment.
2. Check the indoor and outdoor grilles for
obstructions to air ow. The unit must be located
where curtains, furniture, trees, or other objects do
not block the air ow to and from the unit. If air is
obstructed and/or deected back into the unit,the
air conditioner compressor may cycle on and off
rapidly. This could damage the compressor or
possibly void the warranty.
FRONT REMOVAL
1. Grasp the cabinet front.
3. Slide the chassis into the wall sleeve until the
chassis anges contact the front edge of the wall
sleeve.
4. Secure the chassis to the wall sleeve using two
screws on each side of the chassis to ensure a
proper seal between the chassis and the wall
sleeve. The screws are supplied in a plastic bag.
Chassis Installation View 2
Chassis Installation View 1
3. Lift the cabinet front off the chassis. Reverse this
procedure to reinstall the cabinet front.
Fig. 7 Cabinet Front Removal View 2
2. Pull the bottom of the cabinet front away from
the chassis until the retaining clips disengage.
Fig. 6 Cabinet Front Removal View 1
Heat Controller OWNER’S MANUAL Packaged Terminal
Screws
(2 on each
side of unit)

1. Remove Front Panel. See Fig. 6 and Fig. 7.
2. Remove Junction box cover by removing three screws from side. Remove Junction box cover by taking out
top and side screws. See Fig. 8.
3. Use wire clamp to attach hard wire kit to Junction box. See Fig. 9.
4. Reinstall junction box cover. Secure with screws. See Fig. 10. Replace Junction box cover with screws
removed from Step 2. Tighten securely. Unit must be installed using the appropriate power kit. See Chart 3 -
POWER CONNECTION CHART. These connections must be followed.
5. Replace front panel.
6. Connect power to unit.
HOW TO CONNECT
IMPORTANT: Please read following electrical safety data carefully.
WARNING
ELECTRICAL SHOCK AND/OR UNIT OPERATION AND DAMAGE HAZARD
Failure to follow this warning could result in personal injury or death and/or unit damage.
• Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel only.
• For personal safety, this unit MUST BE properly grounded.
• Protective devices (fuse or circuit breakers) acceptable for unit installations are specied on the nameplate of each unit.
• Do not use an extension cord with this unit.
• Aluminum building wiring may present special problems-consult a qualied electrician.
• When unit is in STOP position,there Is still voltage to electrical controls.
• Disconnect power to unit before servicing by:
1. Removing power cord (if it has one) from wall receptacle.
2. Removing branch circuit fuses or turning circuit breakers off at panel.
!
Fig. 10
Fig. 8 Fig. 9
PACKAGED TERMINAL OWNER’S MANUAL Heat Controller
7

WIRING
Cord connection to a wall socket is not permitted for
265V units. All 265V units must be hard wired using
the hard wire kit or make use of the plug in receptacle
in the standard subbase.
NOTE: See the “Remote Thermostat Change”
Instructions before using the thermostat.
Fig. 11 wall mounted thermostat wiring
Operating Voltage
Unit Voltage Voltage Utilization Range
Rating Minimum Minimum
230/208 187 253
265 238 292
Chart 3 - Operating Voltage
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT MULTIPLE POWER SOURCES BE
PRESENT, FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
DO NOT SERVICE THIS UNIT WITHOUT FIRST SHUTTING
OFF THE POWER TO THE UNIT FROM THE CIRCUIT
BREAKER AND/OR REMOVING THE UNIT CORD SET PLUG
FROM THE WALL OUTLET.
!
WARNING
TO AVOID THE RISK OF PROPERTY DAMAGE, PERSONAL
INJURY OR FIRE, USE ONLY COPPER CONDUCTORS.
!
WARNING
TO AVOID THE RISK OF PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH DUE TO ELECTRICAL SHOCK, DO NOT
USE AN EXTENSION CORD WITH THIS UNIT.
!
WARNING
TO AVOID THE RISK OF PROPERTY DAMAGE, PERSONAL
INJURY OR FIRE. DO NOT INSTALL WITH POWER CORD
STRETCHED OR UNDER A STRAIN AS THIS MAY CREATE
LOOSE PLUG/RECEPTACLE CONNECTION.
!
WARNING
TO AVOID THE RISK OF PERSONAL INJURY, WIRING TO THE
UNIT MUST BE PROPERLY POLARIZED AND GROUNDED.
!
WARNING
THIS AIR CONDITIONER IS NOT MEANT TO PROVIDE
UNATTENDED COOLING OR LIFE SUPPORT FOR PERSONS
OR ANIMALS WHO ARE UNABLE REACT TO THE FAILURE
OF THIS PRODUCT.
THE FAILURE OF AN UNATTENDED AIR CONDITIONER MAY
RESULT IN EXTREME HEAT IN THE CONDITIONED SPACE
CAUSING OVERHEATING OR DEATH TO PERSONS OR
ANIMALS.
!
Thermostat
Heat Controller OWNER’S MANUAL Packaged Terminal
8

9
Receiver of IR remote controller signal
Fig. 12 Use of unit mounted control panel
Operation mode buttons
Press these buttons to select
the unit mode heat, cool or
fan.
Operation mode
indicator lamps
When the unit operates on
heat or cool or fan mode
the indicator lamps will be
activated.
Digital Displayer
On normal operation indicates room temperature;
When pressing + or - button, indicates setting temperature;
On time operation, indicates timer time;
On failure operation, indicates fault code.
COOL button
Press this button to set room
temperature cooler.
Warm button
Press this button to set room
temperature warmer.
ON/OFF button
Press this button to turn
the unit ON or OFF.
Operation indicator
lamp.
Fan speed indicator lamp.
Fan Speed button
Press this button to
select the fan speed on
high, low or auto.
OPERATING INSTRUCTIONS
PACKAGED TERMINAL OWNER’S MANUAL Heat Controller

10
COOL / FAN / HEAT MODE
OPERATION PROCEDURE
Control panel:
• Press the ON/OFF button.
• Press the HEAT/COOL/FAN button, select the
operation mode: heat/cool/fan.
• Press + or - button, to set your desired temperature.
The setting temperature range is 60-90°F (16-32°C).
• Press the FAN SPEED button to set your desired air
ow rate: high/low/auto.
TIMER PROCEDURE (Remote controller)
When batteries are inserted, the present time Is
automatically set to AM 0:00.E.X.:set to AM10:30.
• Open the back cover,push the CLK button .The time
Indicator is ickering and can set the present time.
• Press the HOUR button.(set to AM 10:00)
• Press the MIN button. (set to 30)
• Press the CLK button again, and then close the back cover.
SET UP OPERATION
1) Temperature shift key: Press + and - button at the
same time for 3 seconds, the temperature is shifted
between Fahrenheit and centigrade.
2) Temperature setting limiting: Press + and
SPEED button at the same time to enter the
maximum and minimum temperature setting.
R1~R8 will be displayed every 3 seconds. Release
the two keys to ensure the setting is effective and
the gures will last for 5 seconds. The temperature
setting range is between so 60°F~90°F as factory
default.
VENTILATION CONTROL
The ventilation control lever is located at left side of
unit, behind front panel.
NOTE: The vent door shipping tape must be removed
before using vent control lever. See Fig. 13 and Fig. 14.
When set to closed, only the air Inside the room is
circulated and ltered;
When set to open, some outdoor air will be drawn into
room, this will reduce heating or cooling efciency.
3) Remote thermostat change: In standby off
mode, press HEAT and + button, for 3 seconds,
the buzzer will chime and LED display will read “P”
or “r”.
P: unit control panel has control of unit.
r: wall thermostat has control of unit.
R1 R2 R3 R4 R5 R6 R7 R8
Heating Temperature Limits (°F)
86 86 90 74 92 90 72 90
Cooling Temperature Limits (°F)
63 65 72 72 67 69 68 60
Chart 4 Temperature setting limiting
Fig. 14 Shipping Screw Location
Fig. 13 Shipping Tape Location
The vent control allows outside air to be drawn into the
conditioned area. This outside air can provide ventilation
when the blower Is operating, but it will increase the
heating or cooling load and operating costs.
To obtain access to the vent control
1. Remove the cabinet front (see Front Removal).
2. Remove the shipping screw (if installed) from the
vent door.
3.Remove the label (if present) from over the vent
control lever on the left side of the chassis. Remove
the vent door shipping screw.
4. Rotate the vent control lever to either open or close
the damper.
Shipping tape
Remove shipping
screw if present
Heat Controller OWNER’S MANUAL Packaged Terminal

11
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT. MULTIPLE POWER SOURCES BE
PRESENT, FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
!
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT. MULTIPLE POWER SOURCES BE
PRESENT, FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
!
Discharge Air Flow
3. Remove the seven (7) screws which secure the
discharge air grille to the cabinet front.
Discharge Air Flow Grille Removal
4. Rotate the grille 180° clockwise
5. Reinstall the screws securing the discharge air grille
to the cabinet front. Reinstall the cabinet front on
the unit.
AIR DISCHARGE GRILLE
The discharge grille can be adjusted to expel air at
either a 15° or 55° angle.
Vent door lever positions
Location of 7 Screws
15°
Discharge
Air
55°
Discharge
Air
Use the following procedure to change the angle of the
discharge air ow:
1. Remove the front cabinet (see Front Removal).
2. Position the front so that the backside is accessible.
MONTHLY MAINTENANCE AND CLEANING
Intake Air Filters
To properly maintain the operational performance of
your PTAC unit, it is extremely important that the inlet
air lters be cleaned once per month or more often
if operated in dusty or dirty locations or conditions.
The intake air lters are constructed of durable
polypropylene. The “air intake” air lters can be easily
inserted into the cabinet front, using the lter guides.
Before cleaning the intake lter, turn the unit off by
setting the mode switch to the OFF position. Filter
should be cleaned as required.
The following procedure is used to remove the
intake lter:
1. Grasp each lter by its molded handle, located on the
front edge of the front, below the discharge grill.
Discharge Grille Orientation Options
MAINTENANCE AND CLEANING
PACKAGED TERMINAL OWNER’S MANUAL Heat Controller

12
CAUTION
DO NOT USE COMMERCIAL GRADE COIL CLEANERS.
SOME OF THESE CLEANERS MAY CONTAIN ETHYLENE
DIAMINE TETRACTEIC ACID (EDTA) WHICH CAN SHORTEN
THE LIFE OF THE CONDENSER COIL.
!
Base pan and Condenser coil
Before cleaning the base pan and condenser coil, turn
OFF unit mode switch and disconnect power to the unit.
To disconnect power, either unplug the power cord at
the wall outlet or subbase, or disconnect power at the
fuse box or circuit breaker
1. Create a water tight seal by tightly covering the entire
control panel area and fan motor with plastic. Creating
this seal prevents water from entering the control area
or the fan motor and damaging the unit.
2. Spray condenser coil and base pan down with water.
3. Rinse condenser coil and base pan with water again.
NOTE: Ensure water pressure is no higher than that
of an ordinary garden hose and the water temperature
no higher than 120°F.
Routine Scheduled Maintenance
To achieve continuing top performance and high
efciency, establish a “once a year” cleaning/inspection
schedule for the unit. Take the unit out of the sleeve and
thoroughly clean and rinse. Be sure to include in the
yearly cleaning the evaporator coil, and condenser coil,
basepan, and drain passages.
Scheduled maintenance can be accomplished by either
qualied local maintenance staff or by an authorized
servicer. They must follow the instructions described in
this manual.
Adverse Operating Conditions Maintenance
Units operating in dusty or corrosive locations; i.e.
dusty construction site or sea coast, must be cleaned
more often. A minimum of four (4) times a year will
maintain proper operational conditions and protect unit
components.
Wall sleeve
Clean the wall sleeve while cleaning the unit. The
caulking around the sleeve should be checked to make
sure that any potential air and water openings around
the sleeve are properly sealed. The wall sleeve’s level
should also be rechecked. Proper leveling for most
installations are a 1/4 bubble tilt to the outside and
level from right to left. Contact your sales person for
detailed maintenance or cleaning instructions.
Vent Screen
Before cleaning the vent screen, disconnect power
to the unit by unplugging the power cord at the wall
outlet or subbase, or disconnect power at the fuse
box or circuit breaker. If unit is operated with vent door
closed,the vent screen does not need to be cleaned.
1. Remove the cabinet front as described in Front
Removal.
2. Remove the four screws securing the chassis to the
wall sleeve.
3. Slide the chassis out of the wall sleeve far enough so
that the vent screen is accessible.
4. Clean the vent screen, slide the chassis back into the
wall sleeve, secure it in place with four screws and
reinstall the front cabinet.
Cabinet Front
The cabinet front and discharge air grille can be cleaned
with a water dampened cloth. Under no circumstances
should hydrocarbon-based cleaners (e.g. acetone,
benzene, naphtha gasoline,etc.) or ammonia based
cleaners be used to clean the front or air grilles. Use
care when cleaning the control area.
YEARLY MAINTENANCE AND CLEANING
NOTE: Use a mild biodegradable detergent when
cleaning the unit. Special care must be taken to protect
the unit’s control board and other electrical components
from getting any water on them while cleaning. The use
of harsh or caustic cleaning agents or materials such as
bleach or coil cleaners that are not designed for PTAC
products will cause damage or deterioration of the
aluminum n or coil material and is not recommended.
Care must be taken not to bend the aluminum n stock.
Front removal is not
necessary to remove
the lter
Filter is removed by
grasping the lter’s top
and gently pulling up
2. Pull the lter straight up and remove.
3. Clean lter with vacuum or with running water.
Reverse this procedure to reinstall the lter.
Heat Controller OWNER’S MANUAL Packaged Terminal

13
4. Tilt the non-compressor side of the unit up no higher
than 45 degrees and allow water to drain out the other
side of the unit.
5. Remove excess water left in the base pan by wiping
the base pan with a dry cloth.
6. Remove the water-tight seal from the motor and
control panel area.
7. Reinstall unit back into wall sleeve.
8. Allow unit to dry for 24 hours before reapplying
power. When power is reapplied test unit for proper
operation.
9. Place a non-acidic algaecide in the base pan to inhibit
bacteria growth. Ensure the algaecide is compatible
with wet coil operation and is not corrosive to the coil.
Air sounds
The fan cycle switch sets the operational mode of the
fan. In the ON position the fan will run continuously
whenever power is applied in this mode. In the
AUTO position, the fan will cycle on and off with the
compressor or electric heater.
Starting delay
You may notice a few minutes delay in the starting if
you try to restart the unit too soon after turning it off or if
you adjust the thermostat right after the compressor has
shut off. This is due to a built-in delay to protect the
compressor.
Buzzer Response
The buzzer will chime (0.1 sec) as response when
receiving an order from key pad control and remote
control.
DIAGNOSTIC CODES
The Diagnostic Maintenance provides detailed
information on PTAC control operation and operational
status including present modes, failures, airow
restriction warnings, operating temperatures, and past
failures.
To enter Diagnostic Status Report mode, press and
hold the down arrows and, while holding press the FAN
SPEED key for a period of ve (5) seconds.
The meaning of gure on display pad is as below:
X.X---(0~4: time of protection)
L---is protection mode(1: anti-frost; 2: overheat; 3: high
pressure; 4: anti-freezing)
Failure
code Content or detect
E2 Indoor temperature sensor failure
E3 Indoor coil temperature sensor failure
E5 Outdoor coil temperature sensor failure
E8 Overheating protectlon/defrostlng
E9 High pressure protection
CAUTION
HIGH PRESSURE AND HIGH TEMPERATURE CLEANING IS
NOT RECOMMENDED.
DOING SO COULD DAMAGE THE ALUMINUM FIN STOCK
AND ELECTRICAL COMPONENT.
!
Clearance Check
Clearances around the unit should also be checked to
make sure that the intake air and discharge air paths
have not become blocked or restricted. A minimum of
eight inches clearance is needed from unit to furniture,
beds, or other objects for proper operation. Restricted
discharge or intake air will reduce the unit’s operational
performance. In severe airow restrictions, damage
can occur to unit components such as the compressor,
electric heater or fan motor.
NORMAL OPERATING SOUNDS
AND CONDITIONS
Water trickling sounds
Water is picked up and distributed over the coil. This
improves the efciency and helps with water removal.
Water dripping
Water will collect in the base pan during high humidity
days. This can cause overow and drip from the outside
of the unit.
PACKAGED TERMINAL OWNER’S MANUAL Heat Controller

14
TROUBLESHOOTING
POSSIBLE CAUSES SOLUTIONS
UNIT DOES NOT START
• Unit may be unplugged.
• Fuse may have blown.
• Circuit breaker may have tripped.
• Unit may be off or in wall thermostat mode.
Check section on dipswitch settings to verify dipswitches
are set properly.
• Unit may be in a protection or diagnostic failure mode. See
section on diagnostic codes.
• Check that plug is plugged securely in wall receptacle.
Note: Plug has a test/reset button on it. Make sure that the
plug has not tripped.
• Replace the fuse.
• Reset circuit breaker.
• Turn unit on (bottom right button on keypad).
DISPLAY HAS STRANGE NUMBERS/CHARACTERS ON IT • The unit may be in a diagnostic condition. Check diagnostic
codes --- checking Control section to determine if unit has had
a failure.
• The unit may be set for °C (instead of °F), see the SET UP
OPERATION.
UNIT MAKING NOISES • Clicking, gurgling and whooshing noises are normal during
operation of unit.
UNIT NOT COOLING / HEATING ROOM
• Unit air discharge section is blocked
• Temperature setting is not high or low enough
Note: Setpoint limits may not allow the unit to heat or cool the
room to the temperature desired. Check section on SET UP
OPERATION settings.
• Unit air lters are dirty.
• Room is excessively hot or cold when unit is started
• Vent door left open
• Unit may be in a protection or diagnostic failure mode. Check
section on Intelligent Self --- checking Control.
• Compressor is in time delay. There is a protective time delay
(approx. 3 minutes) on starting the compressor after a power
outage (or restarting after it has been turned off), to prevent
tripping of the compressor overload.
• Make sure that curtains, blinds or furniture are not restricting
or blocking unit airow.
• Reset to a lower or higher temperature setting.
• Remove and clean lters.
• Allow sufcient amount of lime for unit to heat or cool
the room. Start heating or cooling early before outdoor
temperature, cooking heat or gatherings of people make room
uncomfortable.
• Close vent door.
• Check dipswitch settings for desired comfort.
• Wait approximately 3 minutes for compressor to start.
WATER DRIPPING INSIDE
WATER DRIPPING INSIDE
• Wall sleeve is not installed level
ICE OR FROST FORMS ON INDOOR COIL
• Low outdoor temperature
• Dirty lters
COMPRESSOR PROTECTION
• Power may have cycled, so compressor is in a restart
protection.
• Random Compressor restart-Whenever the unit is plugged in,
or power has been restarted, a random compressor restart will
occur. After a power outage, the compressor will restart after
approximately 3 minutes.
• Compressor Protection-To prevent short cycling of the
compressor, there is a startup delay of 3 minutes and a
minimum compressor run time of 3 minutes.
• When outdoor temperature is approximately 55°F (12.8 °C) or
below, frost may form on the indoor coil when unit is in Cooling
mode. Switch unit to FAN operation until ice or frost meIts.
• Remove and clean lters.
• Wall sleeve must be installed level for proper drainage of
condensation. Check that installation is level and make any
necessary adjustments.
• If a drain kit has not been installed, condensation run off during
very hot and humid weather is normal. See Note 2. If a drain
kit has been installed and is connected to a drain system,
check gaskets and ttings around drain for leaks and plugs.
Heat Controller OWNER’S MANUAL Packaged Terminal

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