Heat Controller Air Conditioner SMA SMH 09 User Manual

OWNER’S MANUAL  
SMA/SMH 09/12/18/24  
Version C  
Single Zone Ductless Mini-Split System  
A/C and Heat Pump  
Heat Controller, Inc. • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com  
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Heat Controller, Inc.  
OWNER’S MANUAL  
SMA/SMH  
To prevent injury to the user, other people and/or to property, the following instructions must be followed. Incorrect operation  
due to ignoring these instructions may cause harm or damage. The seriousness is  
by the following indications:  
This symbol indicates the possibility of death or serious injury.  
WARNING!  
CAUTION!  
!
!
This symbol indicates the possibility of injury or damage to property.  
Meanings of symbols used in this manual are as shown below:  
Never do this.  
Always do this.  
!
Do not attempt to install this air conditioner by yourself.  
WARNING!  
!
!
This unit contains no user-serviceable parts. Always consult authorized service personnel for repairs.  
Do not insert or objects into the outlet or intake grilles.  
Do not start and stop air conditioner operation by disconnecting the power supply.  
Take care not to damage the power supply wiring.  
In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the  
power supply, and consult authorized service personnel.  
Provide occasional ventilation during use.  
CAUTION!  
Do not direct air  
at  
or heating apparatus.  
or other heating apparatus.  
Avoid installing the air conditioner near a  
Do not climb on, or place objects on, the air conditioner.  
Do not hang objects from the indoor unit.  
Do not set  
vases or water containers on top of the air conditioner.  
Do not expose the air conditioner directly to water.  
Do not operate the air conditioner with wet hands.  
Turn off power source when not using the unit for extended periods.  
Do not drink the water drained from the air conditioner.  
Connection valves become hot during Heating; handle with care.  
Do not apply any heavy pressure to evaporator  
Operate only with air  
installed.  
Do not block or cover the intake or outlet grille.  
Ensure that any electronic equipment is at least 3 feet (1m) away from either the indoor or outdoor  
units.  
Do not use  
gases near the air conditioner.  
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SMA/SMH  
OWNER’S MANUAL  
Heat Controller, Inc.  
The display panel of the indoor unit will look like one of the following:  
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5
2
1
3
2
NOTE: For cooling only models ≥18000Btu/h indicator light is for FAN ONLY, not defrost.  
AUTO indicator  
This indicator illuminates when the air conditioner is in AUTO operation.  
DEFROST indicator (for cooling & heating models only)  
This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air  
control feature is activated in heating operation.  
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OWNER’S MANUAL  
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3
4
TEMPERATURE indicator  
Displaysthe temperature settings when the air conditioner is operational.  
OPERATION /POWER indicator  
Thisindicator  
dicator lights  
after power is on and illuminates when the unit is in operation. The operation in-  
rapidly times per second) when safety protection features come into operation.  
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TIMER indicator  
Thisindicator illuminates when the TIMER is set ON/OFF.  
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SMA/SMH  
OWNER’S MANUAL  
Heat Controller, Inc.  
Features and Functions:  
Low Ambient Operation and Crank Case Heater Feature:  
When cooling is needed year round, including when outdoor temperatures are apt to fall below freezing, our S  
Series ductless mini-split systems will continue to work, as they come with factory installed low ambient con-  
trols. The low ambient feature works by regulating the head pressure by varying the amount of air flow through  
the condenser, which helps to prevent evaporator freeze ups and low pressure problems due to low ambient  
outdoor temperatures. Low ambient operation is a great feature for temperature/humidity sensitive environ-  
ments or applications such as server/computer rooms, supermarkets, restaurants, or cooling tower fans.  
Additionally, a crank case heater is required and factory installed, as it is needed for use with the low ambient  
controls. The crank case heater minimizes liquid refrigerant migration to the compressor when the compressor  
is not operating and helps to keep the compressor oil warm enough so that it remains fluid to prevent slugging.  
Crank case heaters also assist to greatly reduce heat loss to ambient air. Together, the lower ambient feature  
combined with the factory installed crank case heater, will not only allow the air conditioner to cool year round,  
but will also prevent compressor failure in low ambient conditions.  
See chart below for operating conditions:  
Ambient Operating Conditions  
Mode  
Temp  
Fahrenheit  
5 to 109.4  
=62.6  
Celsius  
-15 to 43  
=17  
Outdoor  
Indoor  
Cooling  
Outdoor  
Indoor  
5 to 75.2  
=86  
-15 to 24  
=30  
Heating  
Outdoor  
Indoor  
23 to 109.4  
>17  
-5 to 43  
>62.6  
Dehumidification  
Manual Operation  
Manual operation can be used temporarily to run the air conditioner without using the remote controller. This fea-  
ture can also be used to test the unit during installation and troubleshooting by an authorized service technician.  
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2
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Open and lift the front panel up until it stops and  
makes a clicking sound.  
By pressing the manual control button, the unit  
will be placed into forced AUTO operation mode.  
Close the panel firmly to its original position.  
CAUTION  
• Once you push the manual button, the operation mode  
will change in the following order:  
AUTO  
COOL  
OFF  
• By pushing the button twice, the unit will be placed  
into forced COOL mode, which can be used for testing  
purposes.  
• By pushing the button a third time, the air conditioner  
will stop operating and turn off.  
To restore use of the remote controller to control the  
unit, simply begin to operate the unit with the remote  
controller.  
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OWNER’S MANUAL  
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AUTO operation  
• When you set the air conditioner to AUTO mode, it will auto-  
matically select cooling, heating (heat pump models only), or  
fan only operation depending on what temperature you have  
selected and the actual room temperature.  
• The air conditioner will control room temperature automatically  
around the temperature set point you select.  
• If the AUTO mode is uncomfortable, you can change desired  
temperature settings manually.  
ECONOMY/SLEEP operation  
When you push ECONOMY button on remote controller it  
activates SLEEP mode. During cooling, heating (heat pump  
only), or AUTO operation, the air conditioner will automatically  
increase (cooling) or decrease (heating) 2°F (1°C) per hour. The  
set temperature will become steady 2 hours later. The SLEEP  
mode will turn off after 7 hours and resort back to the previous  
settings. The fan speed will be automatically controlled. This  
feature can maintain the most comfortable temperature while  
you sleep and save more energy during use.  
DRY MODE/DEHUMIDIFYING operation  
• The temperature is regulated while dehumidifying by repeat-  
edly turning on and off of the cooling operation or fan only. The  
fan speed indicator will display AUTO and low speed will be  
used.  
Optimal Usage Tips:  
To achieve optimal performance, please note the following:  
• Adjust the air flow direction correctly so that it is not directed  
directly blowing on people/animals.  
• Adjust the temperature to achieve the highest comfort level.  
Do not adjust the unit to excessive temperature levels.  
• When in COOL or HEAT modes close any open doors and  
windows within the room that the unit is operating in to in-  
crease performance.  
• Use TIMER ON button on the remote controller to select a  
time you want to start your air conditioner.  
• Do not put any objects near air inlet or air outlet, as the effi-  
ciency of the air conditioner may be reduced and the air condi-  
tioner may stop running due to air flow blockages.  
• Clean the air filter periodically, otherwise cooling or heating  
performance may be reduced.  
• Do not operate unit with louvers in a closed position  
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OWNER’S MANUAL  
Heat Controller, Inc.  
Airflow Direction Control  
NOTES:  
• Use the remote controller to adjust the horizontal louver  
• Manually adjust the vertical louver.  
To set the vertical air flow(Up–Down) direction  
Perform this function while the unit is in operation. Use  
the SWING button on the remote controller to adjust the  
air flow direction. The vertical louver can be moved at  
a range of 6° for each press of the swing button, and if  
pressing more than 2 seconds, the automatic swing func-  
tion will be activated and the louvers will move up and  
down automatically to create a breeze-like effect.  
Vertical louver  
Please refer to the REMOTE CONTROLLER  
OPERATION MANUAL for details.  
To set the horizontal air flow direction (left–right)  
• Move the left to right louver manually to adjust the air  
flow in the direction you prefer.  
IMPORTANT: Before adjusting the left to right louvers,  
the supply power must be disconnected.  
CAUTION!  
!
Do not operate the air conditioner for long periods  
with the air flow direction set downward in cooling or  
dehumidifying mode. Otherwise, condensation may  
occur on the surface of the vertical louver causing  
moisture to drop on to the floor or on furnishings.  
Do not move the vertical louver manually unless it is  
necessary. Always use the remote controller.  
When the air conditioner is started immediately after  
it was stopped, the vertical louver might not move for  
approximately 10 seconds.  
Open angle of the vertical louver should not be set too  
small, as COOLING or HEATING performance may be  
impaired due to too much restriction of air flow area.  
Do not operate unit with louvers in closed position.  
When the air conditioner is connected to power (initial  
power), the vertical louver may generate a sound for 10  
seconds, this is a normal operation function.  
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Typical Operational Occurrences  
The following events may occur during normal operation.  
1. Protection of the air conditioner.  
Compressor protection  
• If the unit is stopped and then immediately restarted again, the compressor will not operate for about  
3 minutes in order to protect the compressor.  
Anti-cold air (heat pump models only)  
• The unit is designed not to blow cold air in HEAT mode, when the indoor heat exchanger is in one of  
the following three situations and the set temperature has not been reached.  
A) When heating has just starting.  
B) Defrosting is occurring  
C) Low temperature heating is occurring  
Defrosting (Cooling and heating models only)  
• The indoor or outdoor fan stop running when defrosting (heat pump models only).  
• Frost may accumulate on the outdoor unit during heat cycle when outdoor temperature is low and hu-  
midity is high, resulting in lower heating efficiency of the air conditioner.  
• During this condition, air conditioner will stop the heating operation and start defrosting automatically.  
• Defrost time may vary from 4 to 10 minutes according to the outdoor temperature and the amount of  
frost buildup on the outdoor unit.  
2. Mist or steam are being emitted  
• A white mist may emit from the indoor unit due to a large temperature difference between air inlet and  
air outlet in COOL mode in an indoor environment that has a high relative humidity.  
• A white mist may emit due to moisture generated from the defrosting process when the air conditioner  
restarts in HEAT mode operation after defrosting.  
3. Typical sounds  
You may hear a low hissing sound when the compressor is running or has just stopped running. This  
sound is the sound of the refrigerant flowing or coming to a stop.  
You can also hear a low “squeak” sound when the compressor is running or has just stopped running.  
This is caused by heat expansion and cold contraction of the plastic parts in the unit when the tempera-  
ture is changing.  
• A noise may be heard due to louver restoring its original position when power is first turned on.  
• A sizzling sound may be heard occasionally when the unit is defrosting.  
4. Dust is blown out from the indoor unit  
• This is a normal condition when the air conditioner has not been used for a long time or during first use  
of the unit and an accumulation of dust has formed on the unit’s outlet. Cleaning dust off of the unit  
before operation will prevent this.  
5. A peculiar smell comes out from the indoor unit  
• This is caused by the indoor unit giving off smells permeated from building material, from furniture, or  
smoke. A burning smell could mean there is something wrong with the unit. Power off the unit and call  
an authorized servicer.  
6. Operating mode changes to FAN ONLY mode  
• When the indoor temperature reaches the temperature set point on air conditioner, the compressor will  
stop automatically, and the air conditioner mode changes to FAN only mode. The compressor will start  
again when the indoor temperature rises above the set point in the COOL mode or falls below the set  
point in the HEAT mode (heat pump only models).  
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7. Condensation  
• Dripping water may generate on the surface of the indoor unit when cooling in relatively high humidity.  
Adjust the vertical louver to the maximum air outlet position and select HIGH fan speed. NOTE: Water  
could drop onto the floor or objects below the indoor unit.  
8. Heating mode (heat pump models only)  
• The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heat-  
ing operation. When the outdoor temperature falls, heat drawn in by the air conditioner decreases  
accordingly. At the same time, the heat load of the air conditioner increases due to larger difference  
between indoor and outdoor temperature. If a comfortable temperature can’t be achieved by the air  
conditioner, we suggest you use a supplementary heating device.  
9. Auto-restart function  
• Power failure during operation will stop the unit completely.  
• For units with the Auto-restart feature, when the power restores, the unit restarts automatically using  
the previous settings preserved by the memory function of the unit. Timer settings may need to be  
adjusted after a power failure.  
10. Electrical interference  
• Electronic equipment which uses wireless radio transmitters within 3 ft (1m) of the air conditioning unit  
may cause the unit to malfunction. Disconnect the unit with power and then re-connect the unit with  
power again. Push the ON/OFF button on the remote controller to restart operation. Ensure that the air  
conditioner unit is as far away from any electronic interference sources as possible, otherwise wireless  
interference can occur.  
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OWNER’S MANUAL  
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Care and Maintenance  
Cleaning the Grille, Case and Remote Controller  
• Turn the system off before cleaning. To clean, wipe  
with a soft, dry cloth. Do not use bleach or abrasives.  
NOTE: Supply power must be disconnected before  
cleaning the indoor unit.  
CAUTION!  
• Do not use an overly wet cloth to clean the unit as  
it may damage the electronic components. A damp  
cloth can be used if needed.  
!
• Do not use a chemically treated cloth or duster to  
clean the unit.  
• Do not use benzine, paint thinner, polishing  
powder, or similar solvents for cleaning. These  
may cause the plastic surface to crack or deform.  
• Never use water hotter than 104°F (40°C) to clean  
the front panel, it could cause deformation or  
discoloration.  
Cleaning the Air Filter  
A clogged air filter reduces the cooling efficiency of  
this unit. Please clean the filter once every 2 weeks.  
1. Lift the indoor unit panel up to an angle until it stops  
with a clicking sound.  
2. Hold the handle of the air filter and lift it up slightly  
to take it out from the filter holder, then pull it down-  
wards.  
3. Remove the AIR FILTER from the indoor unit.  
• Clean the AIR FILTER once two weeks.  
• Clean the AIR FILTER with a vacuum cleaner or  
water, then dry it in a cool place.  
Continued on next page  
10  
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Heat Controller, Inc.  
OWNER’S MANUAL  
SMA/SMH  
Troubleshooting Tips  
Stop the air conditioner immediately if one of the following errors occurs. Disconnect the power and contact  
an authorized servicer.  
OPERATION indicator light flashes rapidly (5 times every second) and this can’t be fixed by dis-  
connecting the power and then reconnecting it.  
Call for  
Fuse blows or circuit breaker trips frequently  
service if  
Other abnormal situations (such as burning smells) that can’t be resolved using the steps outlined  
below.  
Symptoms Possible Cause/Things to Check  
What should be done?  
Wait for the power to be restored or call an  
electrician to address any power supply problem.  
Is there power supplied to the unit?  
Fuse may have blown out or a circuit  
Unit does  
no start or  
Replace the fuse or flip the circuit breaker.  
breaker has been tripped.  
operate at  
all  
Batteries in remote controller may be dead Replace the batteries and ensure the polarities  
or installed incorrectly.  
are correct.  
Is the unit’s timer set?  
Wait or cancel timer setting.  
Inappropriate temperature setting.  
Set temperature correctly.  
Air filter may be blocked  
Clean the air filter to prevent air flow blockages.  
Poor cooling  
or heating  
Close the doors or windows within the area  
being cooled/heated to increase efficiency and  
performance.  
(heat pump Doors or windows are open.  
models only)  
performance  
Air inlet or outlet of indoor or outdoor unit  
are blocked.  
Clear obstructions away, then restart the unit.  
Wait approximately 3 minutes for the compressor  
to turn on and the unit to begin cooling/heating.  
Compressor time delay has been activated  
If the problem persists after performing these checks, or if you notice burning smells, or the operation  
indicator light flashes repeatedly, immediately stop operation, disconnect the power, and call an authorized  
service center.  
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