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Summary of Contents for Samsung Lennox MWMD009S6-1P
- Page 1 Mini-Split Installation manual MWHD/MWLD/MWPD Outoor and MWHD/MWMD Indoor • Thank you for purchasing this Lennox Mini-Split. • Before installing this unit, please read this installation manual carefully and retain it for future reference. DB68-12967A-00 December 2024...
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Page 2: Table Of Contents
Contents Safety Information Safety Information Installation Preparation Step 1-1 Typical installation overview Step 1-2 Verifying model numbers Step 1-3 Choosing the installation location Step 1-4 Unpacking Step 1-5 Preparing materials and tools Indoor Unit Installation Step 2-1 Attaching the mounting bracket to the wall Step 2-2 Drilling the wall penetration Step 2-3 Connecting the refrigerant pipes Step 2-4 Connecting the power and communication cables... -
Page 3: Safety Information
Safety Information WARNING: Read This Manual • Read and follow all safety information and instructions before installation, use, or maintenance of this appliance. Incorrect installation, use, or maintenance of this appliance can result in death, serious injury, or property damage. Keep these instructions with this appliance. -
Page 4: Installation
Safety Information Safety Information Notices and notes FOR GENERAL To make you aware of safety messages and highlighted information, we use the following notices and notes California Proposition 65 Warning (US) throughout this manual: Cancer and Reproductive Harm WARNING: WARNING - www.P65Warnings.ca.gov. -
Page 5: Installation Of The Product
Installation of the product • Because your Mini-Split contains R-32 refrigerant, make sure that it is installed, operated, and stored it in a room • The units must be installed in compliance with the whose floor area is larger than the minimum required floor clearances indicated in the installation manual to area specified in the following table: ensure either accessibility from both sides or ability to... -
Page 6: Preparation
Safety Information drain leakage. For storage, securely seal their openings. • After installation, check for leakage. Toxic gas may be generated if it comes into contact with an ignition source • When mechanical ventilation is required, ventilation such as a fan heater, stove, or propane cylinders. Make sure openings shall be kept clear of obstruction. -
Page 7: Power Supply Line, Fuse, Or Circuit Breaker
Leakage detection methods Recovery • Electronic leak detectors shall be used to detect • When removing refrigerant from the system for servicing flammable refrigerants, but the sensitivity may not or decommissioning, it is recommended to remove the entire refrigerant charge. be adequate or may need re-calibration. -
Page 8: Step 1-1 Typical Installation Overview
Preparation Preparation Step 1-1 Typical installation overview Evaporator/ fancoil (indoor) Maximum pipe height Refrigerant lines, electric, and drain Make at least one round to reduce noise and vibration. Maximum pipe length Compressor/ condenser (outdoor) The actual units may look different from the images depicted here. -
Page 9: Step 1-2 Verifying Model Numbers
Step 1-2 Verifying model numbers Check the model numbers on the boxes to make sure that the indoor and outdoor units are compatible with each other. Nominal capacity (Btu/hour) Indoor unit model number Outdoor unit model number 9,000 MWMD009S6-1P MWLD009S6S-1P 12,000 MWMD012S6-1P MWLD012S6S-1P... -
Page 10: Step 1-3 Choosing The Installation Location
Preparation Step 1-3 Choosing the installation Indoor unit location requirements location WARNING If installing a Multi-Zone Heat Pump, install as • Do not install the unit in a humid, oily, or dusty location or in a location exposed to direct sunlight, water, or described in the installation manual supplied with rain. - Page 11 CAUTION Minimum clearances for the indoor unit • Do not connect the drain hose to existing waste pipes as odors may arise. Ceiling Installation on an exterior wall 4 inch Wall (100 mm) If the outdoor unit must be installed on an exterior wall, you 5 inch 5 inch will need an L-bracket to support the unit.
- Page 12 Preparation Minimum clearances for the outdoor unit Check the condition of the product periodically. ‐ Check the installation site every 3 months If there is an obstacle in front of the air outlet, keep the and perform anti-corrosion treatment such as outdoor unit at a distance of at least 27.5 in.
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Page 13: Step 1-4 Unpacking
Step 1-4 Unpacking Examples for installing multiple outdoor units: Upon receipt, inspect the product to verify that it has not been Unit: inch (mm) damaged during transport. If the product appears damaged, do not install it and immediately report the damage to your local Lennox distributor. -
Page 14: Step 1-5 Preparing Materials And Tools
Preparation Step 1-5 Preparing materials and tools If installing a Multi-Zone Heat Pump, install as described in the installation manual supplied with Materials in the indoor unit package the Multi-Zone Heat Pump outdoor unit. Make sure that the indoor unit package contains the following Optional accessories materials: For information on the accessories that are available for each... - Page 15 final connections. For more on pipe lengths, see Step 1-1 • #2 Phillips-bit driver for cordless drill Typical installation overview on page 8. • Phillips screw driver • If not using a premanufactured line set: • Slotted screw driver ‐ Only use insulated seamless refrigeration-grade •...
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Page 16: Indoor Unit Installation
Indoor Unit Installation Step 2-1 Attaching the mounting Step 2-2 Drilling the wall penetration bracket to the wall Determine the position of the hole through which the piping bundle (consisting of power and communication Hold the mounting bracket against the wall at the cables, refrigerant pipes, and the drain hose) will pass. -
Page 17: Step 2-3 Connecting The Refrigerant Pipes
Use a standard 2.5-inch (65-mm) hole saw to drill one IMPORTANT hole at the selected location, at a 15° downward angle so • When installing the unit, always connect the that the drain hose will drain properly. refrigerant pipes first, followed by the electrical cables. For disassembly, always disassemble the electric cables before the refrigerant pipes. -
Page 18: Step 2-4 Connecting The Power And Communication Cables
Indoor Unit Installation Step 2-4 Connecting the power and NOTE communication cables • If you are using the right rear exit, the pipes should be long enough to extend through the wall without needing to connect the line set first. It may be easier to connect If installing a Multi-Zone Heat Pump, install as the line set outside of the building, after you have described in the installation manual supplied with... -
Page 19: Step 2-5 Connecting The Drain Hose
Tighten the terminal block screw. F1 F2 Control box Before connecting Upside Non- In Step 2-3, step 3 you determined the exit position for the Correct Damaged down circular piping bundle. If using the left, right, or bottom exits, pass the cables through the selected knockout. -
Page 20: Step 2-6 Taping The Pipes, Cables, And Drain Hose
Indoor Unit Installation Do not box in or cover the drain hose connection. It must CAUTION be accessible for testing later in the installation process and for future servicing. • Be careful not to puncture the plug with the screwdriver when installing it. If the drain hose is routed inside the room, insulate the hose so that dripping condensation does not damage the If using the left, right, or bottom exit, pass the drain hose... -
Page 21: Outdoor Unit Installation
Outdoor Unit Installation Level the unit, then use anchor bolts to secure it at the four If installing a Multi-Zone Heat Pump, install as mounting points. described in the installation manual supplied with For installations in locations that require seismic or hurricane the Multi-Zone Heat Pump outdoor unit. -
Page 22: Step 3-2 Connecting The Cables And The Pipes
Outdoor Unit Installation Step 3-2 Connecting the cables and the CAUTION pipes • Keep the piping length at a minimum to minimize the additional refrigerant charge due to piping Route the piping bundle to the outdoor unit. extension. (Maximum allowable piping length: Use piping clamps to fasten the piping bundle to the 65.62ft.(for ****009/012******) and 98.42ft. - Page 23 Torque the flare connections to the values in Step 2-3, step 7 on page 18. 10 Connect the power cables and secure with a cable clamp. Outdoor-to-indoor power cable Power cable Communication cable (three wires) (three wires) (two wires) 11 Connect the outdoor unit power supply cable to the preinstalled disconnect switch.
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Page 24: Installation Inspection And Testing
Installation Inspection and Testing Installation Inspection and Testing Step 4-1 Performing a drain leak test Step 4-2 Performing pressure tests using nitrogen Pour water into the drain pan. Install the red high-side hose of an R-32-gauge manifold set to the larger liquid/vapor line’s service port. Attach a pressure regulator to a tank of dry nitrogen. -
Page 25: Step 4-3 Evacuating The System
Close the gauge manifold valve, shut off the vacuum CAUTION pump, and remove the common hose. • Leak-detection fluids are also suitable for use with most Connect the hose to the nitrogen pressure regulator and refrigerants. The use of detergents containing chlorine bleed the hose by opening the end of the common hose shall be avoided as the chlorine may react with the closest to the manifold. -
Page 26: Step 4-4 Adding Refrigerant (If Needed)
Installation Inspection and Testing Step 4-4 Adding refrigerant (if needed) CAUTION The outdoor unit is charged with sufficient R-32 refrigerant to Please fill in the following with indelible ink on the support up to a 24.6 feet line set. For lengths greater than 24.6 refrigerant charge label supplied with this product and feet, you must add 0.16 oz of refrigerant per foot of additional on this manual. -
Page 27: Step 4-5 Preparing The System For Commissioning
Step 4-6 Commissioning the unit CAUTION The unit is commissioned using the Smart Install feature. • Make sure that the total refrigerant charge does not exceed (A), the maximum refrigerant charge, which Smart Install can be started only with the remote control. is calculated in the following formula: Maximum While Smart Install is running, you cannot operate the remote refrigerant charge (A)= factory refrigerant charge (B) +... -
Page 28: Step 4-7 Performing Final Checks And Trial Operation
Installation Inspection and Testing Error indicator Error Measures for the installer to take Display Communication error between • Check the cables between the indoor and outdoor units. indoor and outdoor units See if the power cable or communication cable is crossed. •... - Page 29 ‐ In Heat mode, use the Temperature button to set the set temperature to 86 ℉ (30 ℃) ‐ Check whether, approximately 3 to 5 minutes later, the outdoor unit starts, and a cool or warm air blows out. ‐ After 12 minutes of stationary condition, check the 1 minute indoor unit air treatment.
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Page 30: Setting The Installation Options
Setting the installation options Setting the installation options Setting the installation options 1 Enter the mode for setting the options: a Connect the remote control by using the USB port This product has installation options depending on the user's (C-Type) at the bottom of the remote control. installation environment. - Page 31 Example Option code : 013FC5-10B22A-271E00-371020 → 13-FC-50-B2-2A-71-E0-07-10-20 Take the steps presented in the following table: Steps Remote control display Setting SEG 2 Press the button to set the display panel to 1. Temp Every time you press the button, the display panel reads 0 → 1 → 2 → 3 → Temp ···...
- Page 32 Setting the installation options Steps Remote control display Press the button to set next options. 10 Setting SEG 9 Press the button to set the display panel to B. Temp Every time you press the button, the display panel reads 0 → 1 → 2 → 3 → Temp ···...
- Page 33 Steps Remote control display 17 Setting SEG 15 Press the button to set the display panel to 1. Temp Every time you press the button, the display panel reads 0 → 1 → 2 → 3 → Temp ··· 9 → A → B → C → D → E → F repeatedly. 18 Press the button to set next options.
- Page 34 Setting the installation options Steps Remote control display 24 Press the button to set next options. 25 Setting SEG 21 Press the button to set the display panel to 1. Temp Every time you press the button, the display panel reads 0 → 1 → 2 → 3 → Temp ···...
- Page 35 Upon completion of the selection, check you made right selections. Press the button to set the display part and check the display part. → The display part shows like below when each time you press the button. [SEG2,SEG3] [SEG4,SEG5] [SEG6,SEG8] [SEG9,SEG10] [SEG11,SEG12] [SEG14,SEG15]...
- Page 36 Setting the installation options STEP 2. Setting the installation options in a batch Installation option no. for an indoor unit : 02XXXX-1XXXXX-2XXXXX-3XXXXX The installation option can be set at the factory differently depending on the function of each model. Various option items of each address assigned within the installation option are shown in the following table. •...
- Page 37 Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Use of external room temperature Function Page Mode sensor / Use of central control Fan Thermo Off control Factory Factory Indication Details Indication Details Indication Details Indication Details Reserved Reserved Indication Disuse Disuse Use/Disuse details Installation...
- Page 38 Setting the installation options Installation option no. for an indoor unit : 05XXXX-100000-200000-300000 Option SEG1 SEG2 SEG3 (*1) SEG4 (*2) SEG5 (*3) SEG6 Maximum outdoor temperature for External heat compressor lockout Auto mode manual fan speed control / Motion Function Page Mode Auxiliary heater offset temp.
- Page 39 WARNING • Ensure that the external heater connected to a Lennox indoor unit is equipped with an overheating prevention system and meets the UL 1996 standard. • The external heater must be set so that it does not operate if the indoor unit malfunctions and appropriate airflow is impossible.
- Page 40 Setting the installation options STEP 3. Changing the options individually When you want to change the value of a specific option, refer to the following table and follow the steps in STEP 1. Common steps for setting the options on page 29. (Enter the set address of the installation option to change in SEG4 and SEG5 in the table below, enter the change option value in SEG6.
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Page 41: Maintenance Procedures
Maintenance Procedures Repair Decommissioning The following requirements must be fulfilled before and while taking the decommissioning procedure: Performing the gas leak tests • Only qualified, licensed professionals shall perform refrigerant recovery and decommissioning. Before In case of repair of the refrigerant circuit, the following procedure decommissioning, the worker shall become familiar with must be kept to consider flammability. -
Page 42: Sub Pcb Installation (Optional Accessory)
Sub PCB installation (optional accessory) (Wired remote controller, central remote controller etc.) Find the PCB wire, and connect the wire to the Sub PCB as seen in the picture. Turn the power off and take off the cover panel of the indoor unit.
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