Page 1
Mini-Split User manual M1WD***S6-1P, M33D***S6-1P • Thank you for purchasing this Lennox Product. • Before operating this unit, please read this manual carefully and retain it for future reference.
Contents Safety Information Safety Information At a Glance Indoor Unit Overview Operation Features Operating temperature and humidity Cleaning and Maintenance Cleaning and Maintaining Cleaning the indoor unit exterior • Cleaning the outdoor unit heat exchanger Cleaning the air filter Resetting the filter-cleaning reminder Periodic maintenance Troubleshooting 2 English...
Safety Information California Proposition 65 Warning (US) WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. Before using your new mini-split, please read this manual thoroughly to ensure that you know how to operate the extensive features and functions of your new appliance safely and efficiently. Because the following operating instructions cover various models, the characteristics of your mini-split may differ slightly from those described in this manual.
Page 4
Safety Information Follow directions. Do NOT attempt. Make sure the machine is grounded to prevent electric shock. Cut off the power supply. Do NOT disassemble. Symbol Meaning Flammable gas Flammable materials Refrigerant Refrigerant safety group Safety Group Read operating manual Refer to operating manual Read service manual 4 English...
FOR INSTALLATION WARNING Use the power line with the power specifications of the product or higher and use the power line for this appliance only. In addition, do not use an extension line. • Extending the power line may result in electric shock or fire. •...
Page 6
Safety Information This appliance must be properly grounded. Do not ground the appliance to a gas pipe, plastic water pipe, or telephone line. • Failure to do so may result in electric shock, fire, an explosion, or other problems with the product. CAUTION Install your appliance on a level and hard floor that can support its weight.
Page 7
Do not pull or excessively bend the power line. Do not twist or tie the power line. Do not hook the power line over a metal object, place a heavy object on the power line, insert the power line between objects, or push the power line into the space behind the appliance.
Page 8
Safety Information To reinstall the mini-split, please contact your nearest service center. • Failing to do so may result in problems with the product, water leakage, electric shock, or fire. • A delivery service for the product is not provided. If you reinstall the product in another location, additional construction expenses and an installation fee will be charged.
Page 9
Do not insert your fingers or foreign substances into the air inlet/ outlet of the mini-split. • Take special care that children do not injure themselves by inserting their fingers into the product. Do not strike or pull the mini-split with excessive force. •...
Page 10
Safety Information CAUTION Do not place objects or devices under the indoor unit. • Water dripping from the indoor unit may result in fire or property damage. Check that the installation frame of the outdoor unit is not broken at least once a year. •...
Page 11
Do not spray volatile material such as insecticide onto the surface of the appliance. • As well as being harmful to humans, it may also result in electric shock, fire or problems with the product. Do not drink the water from the mini-split. •...
Safety Information FOR CLEANING WARNING Do not clean the appliance by spraying water directly onto it. Do not use benzene, thinner, alcohol or acetone to clean the appliance. • This may result in discoloration, deformation, damage, electric shock or fire. Before cleaning or performing maintenance, cut off the power supply and wait until the fan stops.
Indoor Unit Overview The indoor unit and its display may look slightly different from the illustration shown below, depending on the model and the panel type. 1-Way Cassette 01 Display Indication Function Operation indicator • Heating and cooling model: Operation(Blue) / Defrost(Yellow) •...
Page 14
Indoor Unit Overview 4-Way Cassette 01 Display Indication Function On/Off operation indicator Removing frost indicator Timer indicator Filter cleaning indicator 02 Air flow blade/Air outlet (inside) / Remote control sensor 4-Way Cassette Panel (You can use the WindFree Cooling function when the Cool, Dry, or Fan mode is running.) (Refer to the remote control manual for product operation)
Operation Features Operating temperature and humidity Indoor unit / Outdoor unit: M**D0**S6-1P / MMLD***S6S-1P OPERATIONAL TEMPERATURE MODEL MODE INDOOR HUMIDITY INDOOR OUTDOOR 64℉ to 90℉ 0℉ to 122℉ Cool 80% or less (18℃ to 32℃) (-18℃ to 50℃) M1WD009S6-1P 86℉ or less -13℉...
Page 16
Operation Features Indoor unit / Outdoor unit : M**D0**S6-1P / MM*D0**S6M-1P OPERATIONAL TEMPERATURE MODE INDOOR HUMIDITY INDOOR OUTDOOR 64℉ to 90℉ Cool 80% or less (18℃ to 32℃) 86℉ or less Depending on the outdoor Heat (30℃ or less) unit specifications 64℉...
Cleaning and Maintaining Before cleaning the indoor unit, be sure to turn off the auxiliary power switch. Cleaning the indoor unit exterior 1-Way Cassette Wipe the surface of the unit with a slightly wet or dry cloth when needed. Wipe off dirt of odd- shaped areas by using a soft brush.
Cleaning and Maintaining Cleaning the air filter CAUTION • Before cleaning the indoor unit, be sure to turn off the auxiliary power switch. • Be sure to hold the grille with a hand to prevent dropping from the opening of the front grille. 1-Way Cassette 1 Detaching the air filter Press the Push signs on the front panel, then open...
Page 19
2 Cleaning the air filter Clean the air filter with a vacuum cleaner or soft brush. If dust is too heavy, then rinse it with running water and dry it in a ventilated area. CAUTION • Do not scrub the air filter with a brush or other cleaning utensil.
Page 20
Cleaning and Maintaining 4-Way Cassette 1 Detaching the air filter Push down the hooks at each side of the front grille to open the grille. Pull out the air filter from the indoor unit. 2 Cleaning the air filter Clean the air filter with a vacuum cleaner or soft brush.
Page 21
3 Reassembling the air filter CAUTION • If the indoor unit is used without an air filter, the indoor unit may be damaged due to dust. English...
Cleaning and Maintaining Resetting the filter-cleaning reminder Programmable Wired Controller After cleaning and reassembling the air filter, be sure to reset the filter-cleaning reminder as follows : • Indoor unit with the wired remote control: Option a. Press the button to display the Option Filter Reset menu.
Page 23
Wireless Remote Control • Indoor unit with the wireless remote control: In operation ▶ ▶ Select ▶ ▶ Settings. Select ▶ ▶ Filter reset. ▶ CAUTION • The filter reset indicator blinks when the air filter should be cleaned. • Although the filter cleaning indicator ( ) does not light, be sure to set the "Filter Reset"...
Cleaning and Maintaining Periodic maintenance Requires qualified Unit Maintenance item Interval technicians Clean the air filter. At least once a month Clean the condensate drain pan. Once a year Required Clean the heat exchanger. Once a year Required Indoor unit Clean the condensate drainpipe.
The product does not work. • Ventilate the room for which the alarm was activated. Error E697 • Contact the Samsung Electronics service center for assistance. • This error occurs when the R-32 refrigerant sensor has a malfunction or the sensor’s life has expired.
Page 26
Cleaning and Maintaining Problem Solution • Check whether the power is turned on, and then operate the mini-split again. • Check whether the auxiliary power switch (MCCB, ELB) is turned on. • If the auxiliary power switch (MCCB, ELB) is turned off, the mini-split does not work although you press the (Power) button.
Page 27
Problem Solution The Timed on/off function • Check whether you pressed the (SET) button on the remote does not operate. control after setting the on/off time. Set the on/off time. • Turn on the mini-split again by pressing the (Power) button. The indoor unit display •...
Page 28
Cleaning and Maintaining Problem Solution • In certain conditions [especially, when the outdoor temperature is lower than 68°F (20°C)], a hissing, rumbling, or splashing sound may be heard while the refrigerant is circulating through the mini-split. This is a normal The mini-split makes operation.
Page 30
Visit us at www.lennox.com For the latest technical information, www.lennoxcommercial.com Contact us at 1-800-4-LENNOX COUNTRY CALL OR VISIT US ONLINE AT www.lennox.com for homeowners, AMERICA 800-953-6669 www.lennoxpros.com for dealer/contractor...
Need help?
Do you have a question about the M33D S6-1P Series and is the answer not in the manual?
Questions and answers