Mars COMFORT-AIRE PS-121D Repair manual

www.marsdelivers.com
Owner’s Manual &
Installation Manual
Portable Air Conditioner
PS-121D
PSH-141D

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Safety Precautions . ...........................................................................................................................................................
Safety Precautions
Installation Instructions
Operating Instructions
Maintenance
Table of Contents
Control Panel Features......................................................................................................................................................
Operation Instructions......................................................................................................................................................
Other features......................................................................................................................................................................
Safety Precautions..............................................................................................................................................................
Air Filter Cleaning ..............................................................................................................................................................
Troubleshooting Tips .......................................................................................................................................................
Unit Cleaning ......................................................................................................................................................................
Store the unit when not in use .....................................................................................................................................
Preparation............................................................................................................................................................................
Design Notice.......................................................................................................................................................................
Energy Rating Information .............................................................................................................................................
Ambient Temperature Range For Unit Operating..................................................................................................
Exhaust Hose Installation.................................................................................................................................................
Choosing The Right Location..........................................................................................................................................
Tools Needed........................................................................................................................................................................
Accessories.............................................................................................................................................................................
Window Installation Kit.....................................................................................................................................................
Installation..............................................................................................................................................................................
Troubleshooting Tips
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Safety Precautions
Safety
Read Safety Precautions Before Operation and Installation
To prevent death or injury to the user or other people and property damage, the
following instructions must be followed. Incorrect operation due to ignoring of
instructions may cause death, harm or damage.
WARNING
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Safety Precautions
 Page 3
WARNING CAUTION
This symbol indicates the possibility of
property damage or serious consequences.
Installation must be performed according to the installation instructions. Improper installation
can cause water leakage, electrical shock, or fire.
Use only the included accessories and parts, and specified tools for the installation. Using non-
standard parts can cause water leakage, electrical shock, fire, and injury or property damage.
Make sure that the outlet you are using is grounded and has the appropriate voltage.
The power cord is equipped with a three-prong grounding plug to protect against shock.
Voltage information can be found on the nameplate of the unit.
Your unit must be used in a properly grounded wall receptacle. If the wall receptacle you
intend to use is not adequately grounded or protected by a time delay fuse or circuit breaker
(the fuse or circuit breaker needed is determined by the maximum current of the unit. The
maximum current is indicated on the nameplate located on unit), have a qualified electrician
install the proper receptacle.
Install the unit on a flat, sturdy surface. Failure to do so could result in damage or excessive
noise and vibration.
The unit must be kept free from obstruction to ensure proper function and to mitigate safety
hazards.
Do not modify the length of the power cord or use an extension cord to power the unit.
Do not share a single outlet with other electrical appliances. Improper power supply can
cause fire or electrical shock.
Do not install your air conditioner in a wet room such as a bathroom or laundry room. Too
much exposure to water can cause electrical components to short circuit.
Do not install the unit in a location that may be exposed to combustible gas, as this could
cause fire.
The unit has wheels to facilitate moving. Make sure not to use the wheels on thick carpet or to
roll over objects, as these could cause tipping.
Do not operate a unit that has been dropped or damaged.
The appliance with electric heater shall have at least 3 feet space to the combustible
materials.
Do not touch the unit with wet or damp hands or when barefoot.
If the air conditioner is knocked over during use, turn off the unit and unplug it from the main
power supply immediately. Visually inspect the unit to ensure there is no damage. If you
suspect the unit has been damaged, contact a technician or customer service for assistance.
This symbol indicates the possibility of
personnel injury or loss of life.

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Safety Precautions
 Page 4
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In a thunderstorm, the power must be cut off to avoid damage to the machine due to lightning.
Your air conditioner should be used in such a way that it is protected from moisture.
e.g. condensation, splashed water, etc. Do not place or store your air conditioner where it can
fall or be pulled into water or any other liquid. Unplug immediately if it occurs.
All wiring must be performed strictly in accordance with the wiring diagram located inside of
the unit.
The unit's circuit board(PCB) is designed with a fuse to provide overcurrent protection. The
specifications of the fuse are printed on the circuit board, such as: T 3.15A/250V, etc.
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CAUTION
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This appliance can be used by children aged from 8 years and above and person with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance
shall not be made by children without supervision. (be applicable for the European Countries)
This appliance is not intended for use by persons (including childern) with reduced physical,
sensory or mental capabilities or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not play with the appliance.
Children must be supervised around the unit at all times.(be applicable for other countries
except the European Countries )
If the supply power
cord is damaged, it must be replaced by the manufacturer,its service agent
or similarly qualified persons in order to avoid a hazard.
Prior to cleaning or other maintenance, the appliance must be disconnected from the supply mains.
Do not remove any fixed covers. Never use this appliance if it is not working properly, or if it has
been dropped or damaged.
Do not run power
cord under carpeting. Do not cover power cord with throw rugs, runners, or
similar coverings. Do not route power
cord under furniture or appliances. Arrange power cord
away from traffic area and where it will not be tripped over.
Do not operate unit with a damaged power
cord, plug, power fuse or circuit breaker. Discard
unit or return to an authorized service facility for examination and/or repair.
To reduce the risk of fire or electric shock, do not use this fan with any solid-state speed control device.
The appliance shall be installed in accordance with national wiring regulations.
Contact the authorized service technician for repair or maintenance of this unit.
Contact the authorized installer for installation of this unit.
Do not cover or obstruct the inlet or outlet grilles.
Do not use this product for functions other than those described in this instruction manual.
Before cleaning, turn off the power and unplug the unit.
Disconnect the power if strange sounds, smell, or smoke comes from it.
Do not press the buttons on the control panel with anything other than your fingers.
Do not operate or stop the unit by inserting or pulling out the power cord plug.

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Safety Precautions
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Note about Fluorinated Gasses(Not applicable to the unit using R290 Refrigerant)
1.
Fluorinated greenhouse gases are contained in hermetically sealed equipment. For specific
information on the type, the amount and the CO2 equivalent in tons of the fluorinated
greenhouse gas(on some models), please refer to the relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be performed by a certified
technician.
3. Product un-installation and recycling must be performed by a certified technician.
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Do not use hazardous chemicals to clean or come into contact with the unit. Do not use the unit
in the presence of flammable substances or vapor such as alcohol, insecticides, petrol,etc.
Always transport your air conditioner in a vertical position and stand on a stable, level surface
during use.
Always contact a qualified person to carry out repairs. If the damaged power supply cord must
be replaced with a new power supply cord obtained from the product manufacturer and not
repaired.
Hold the plug by the head of the power plug when taking it out.
Turn off the product when not in use.
WARNING for Using R32/R290 Refrigerant
Do not use means to accelerate the defrosting process or to clean, other than those recommended by
the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources (for example:
open flames, an operating gas appliance or an operating electric heater).
Do not pierce or burn.
Be aware that the refrigerants may not contain an odor.
Appliance should be installed, operated and stored in a room with a floor area according to the amount
of refrigerant to be charged. For specific information on the type of gas and the amount, please refer to
the relevant label on the unit itself. When there are differences between the label and the manual on
the Min. room area description, the description on label shall prevail.