FAQs

Systems can be registered:

1.  Using the Samsung HVAC Mobile App
2.  Under the Training & Support menu tab on samsunghvac.com
3.  In Samsung HVAC Dealer Link*
4.  In Samsung HVAC B2B B-Link*

*Limited access

Email registrations@samsunghvac.com with the registration confirmation number.

Registering the product within 60 days of installation will secure the enhanced warranty on eligible systems.

Systems can be registered:

1.  Using the Samsung HVAC Mobile App
2.  Under the Training & Support menu tab on samsunghvac.com
3.  In Samsung HVAC Dealer Link*
4.  In Samsung HVAC B2B B-Link*

*Limited access

Warranty claims must be submitted by a dealer in Samsung HVAC Dealer Link or by a distributor or spec rep in Samsung HVAC B2B B-Link.

Email warranty@samsunghvac.com with the warranty claim confirmation number.

Warranty parts are generally processed and shipped in 1 business day.

Installation and service manuals are located in the Tech Documents section under the Training & Support tab.

No, because of the inverter compressor ramping up and down, pressure and temps will fluctuate. If a charge issue is suspected, weigh out the charge and verify the factory charge on the side of the unit. If low, find and repair the leak. After the leak is repaired, perform a pressure test, vacuum down under 500 microns and weigh in factory charge.

You will need a computer with the SNET Pro software and a service tool. The process will require a 60-minute recording in test mode and a 60-minute recording of normal operation.

Yes, you will need to download the certificate or you will continue to receive the error when connecting to the gateway. The DMS 2.5 instruction manual shows a step-by-step procedure for downloading the certificate.

You will need a 410A adapter. It converts ¼ (standard) to 5/16 (410A specific).

New indoor boards do not come programmed and will need to be programmed with a wireless controller once installed. The option code procedure is in the service manual. Service manuals are located in the Tech Documents section under the Training & Support tab.

Samsung requires 16/2 stranded shielded cable for all communication wiring grounded at the outdoor unit only.

Option 1

Check voltage at the sensor terminal. If the board does not read between .5 - 4.5 vdc, the board is defective.

Option 2

Check the DC link voltage on pins 1 and 3 (red and black wires) on the BLDC fan connection on the PCB.

The reactor improves the power factor of the inverter power supply, reduces harmonics, and suppresses external surges.

Wireless Controllers

Enter the product code by following the steps found in the service manual. Service manuals are located in the Tech Documents section under the Training & Support tab.

Ducted IDUs Without a Factory Wireless Receiver

Using a direct coupled wireless receiver kit, plug the display connector in the main PCB and manually input the product code located in the service manual. This process should be performed multiple times to ensure successful operation.

1. Confirm that 12 vdc are present at the controller
2. Verify the number of terminals on the controller

• MWR-WE10N (2 terminals) 2 wire connection (F3,F4) 
• MWR-WE10 (4 terminals) 4 wire connection (RAC, FJM - V1, V2)

Product code information is located in the installation and service manuals. Installation and service manuals are located in the Tech Documents section under the Training & Support tab. 

Dip Switches

The dip switches should remain in the default position (ON) for auto addressing. The first dip switch should remain down (OFF) for manual addressing.

Rotary Dial

The rotary dial must be set to the total number of indoor units connected. (Ex. 3 indoor units, set the outdoor dial to 3).

E201 indicates the number of indoor units connected do not match the rotary dial setting at the outdoor unit.  Make sure the dial is set to the number of indoor units connected. 

Check all communication wiring and power wiring.  If any single indoor unit is not powered properly or the communication wire is broken or spliced, the outdoor unit may lose communication to that indoor unit.

Note: Communication wiring will not function properly if wire nuts or splices are present.

E199 is indicating the system is communicating and ready for the start-up procedure (pipe check). Simply press the K1 button once to initiate the pipe check. The outdoor display will show “K5” on the screen. The pipe check typically takes 15-20 minutes in cooling mode and can take up to 60 minutes in heating mode.

Compressor winding

U, V, and W reading should be equal

Compressor to ground

Should have an infinity reading (OL)

The model number is located on the back of the wired controller. It will start with the letters “MWR."

Because the foil surrounding the wires acts as a shield to protect the wiring from harmful external interference that could disrupt the signal. Also, it is very important to connect only one end to a ground connection in the unit. If both ends are grounded it creates a continuous path for the interference and will cause communication problems.

Triple evacuation is a three step process to remove moisture from the system. This process will help prevent compressor failure.

Step 1

• Evacuate down to 5,000 microns
• Pressurize with dry nitrogen to 3 PSI
• Hold pressure for 10 minutes
• Release nitrogen

Step 2

• Evacuate down to 2,000 microns
• Pressurize with dry nitrogen to 3 PSI
• Hold pressure for 15 minutes
• Release nitrogen

Step 3

• Evacuate to below 200 microns
• Hold pressure for 60 minutes

Always refer to the detailed menus found in the installation manual for each wired controller. Installation manuals are located in the Tech Documents section under the Training & Support tab. 

Refrigerant calculator factors can be found in the installation manual. Installation manuals are located in the Tech Documents section under the Training & Support tab. 

Installation and service manuals are located in the Tech Documents section under the Training & Support tab.

No, because of the inverter compressor ramping up and down, pressure and temps will fluctuate. If a charge issue is suspected, weigh out the charge and verify the factory charge on the side of the unit. If low, find and repair the leak. After the leak is repaired, perform a pressure test, vacuum down under 500 microns and weigh in factory charge.

You will need a computer with the SNET Pro software and a service tool. The process will require a 60-minute recording in test mode and a 60-minute recording of normal operation.

Yes, you will need to download the certificate or you will continue to receive the error when connecting to the gateway. The DMS 2.5 instruction manual shows a step-by-step procedure for downloading the certificate.

You will need a 410A adapter. It converts ¼ (standard) to 5/16 (410A specific).

New indoor boards do not come programmed and will need to be programmed with a wireless controller once installed. The option code procedure is in the service manual. Service manuals are located in the Tech Documents section under the Training & Support tab.

Samsung requires 16/2 stranded shielded cable for all communication wiring grounded at the outdoor unit only.

Wireless Controllers

Enter the product code by following the steps found in the service manual. Service manuals are located in the Tech Documents section under the Training & Support tab.

Ducted IDUs Without a Factory Wireless Receiver

Using a direct coupled wireless receiver kit, plug the display connector in the main PCB and manually input the product code located in the service manual. This process should be performed multiple times to ensure successful operation.

1. Confirm that 12 vdc are present at the controller 
2. Verify the number of terminals on the controller

• MWR-WE10N (2 terminals) 2 wire connection (F3, F4)

"UP" indicates that the system has not performed the auto trial operation portion of the start-up. 

To initiate the auto trial operation, press the K1 button for a few seconds. The left-hand screen will display digital “KK” and the right-hand screen will be blank. This process will last for 20 - 60 minutes.

Triple evacuation is a three step process to remove moisture from the system. This process will help prevent compressor failure.

Step 1

• Evacuate down to 5,000 microns
• Pressurize with dry nitrogen to 3 PSI
• Hold pressure for 10 minutes
• Release nitrogen

Step 2

• Evacuate down to 2,000 microns
• Pressurize with dry nitrogen to 3 PSI
• Hold pressure for 15 minutes
• Release nitrogen

Step 3

• Evacuate to below 200 microns
• Hold pressure for 60 minutes

The model number is located on the back of the wired controller. It will start with the letters “MWR."

Always refer to the detailed menus found in the installation manual for each wired controller. Installation manuals are located in the Tech Documents section under the Training & Support tab.  

U200 E201

The outdoor (ODU) unit cannot find either the exact number of indoor units (IDU) or MCU’s that it has been told to find.  The MCU’s have to be manually addressed before the ODU is told to communicate with them.   

C10x E216 

The MCU (addressed as “x”), wasn’t addressed to attach a specific port. You have to determine which IDU (based on the address it was manually assigned or by the outdoor unit auto assigning) does not have an indoor unit(s) on one or more of its ports.  

Field correction is needed to address the IDU’s to match what the MCU is expecting at each port.

Refrigerant calculator factors can be found in the installation manual. Installation manuals are located in the Tech Documents section under the Training & Support tab.  

Od Nd

The installation manuals for the new version “2AA” VRF condensing units describe how the outdoor unit has not been defined (Od Nd) as either a MAIN or a SUB (SUB1 or SUB2*) unit.  

Id Nd

Is stating that the indoor unit quantity is not defined (Id Nd). The manuals will explain the use of the K1, K2 and K4 buttons at the main PCB to determine and save the quantity of indoor units it has to manage.

Installation and service manuals are located in the Tech Documents section under the Training & Support tab.

*DVM S Eco utilizes MAIN only.

VRF stands for Variable Refrigerant Flow. VRF HVAC systems consist of outdoor units connected to multiple indoor units via refrigerant piping to provide cooling and heating to individual zones. The outdoor units can modulate capacity based on the requirements of the individual zones, thus saving energy by not always running at 100% capacity and improving occupant comfort by maintaining temperature as needed in each individual zone.

Service manuals are located in the Tech Documents section under the Training & Support tab.

Yes, you will need to download the certificate or you will continue to receive the error when connecting to the gateway. The DMS 2.5 instruction manual shows a step-by-step procedure for downloading the certificate.

Samsung requires 16/2 stranded shielded cable for all communication wiring grounded at the outdoor unit only.

1. Confirm that 12 vdc are present at the controller
2. Verify the number of terminals on the controller

• MWR-WE10N (2 terminals) 2 wire connection (F3,F4) 
• MWR-WE10 (4 terminals) 4 wire connection (RAC, FJM - V1, V2)

Always refer to the detailed menus found in the installation manual for each wired controller. Installation manuals are located in the Tech Documents section under the Training & Support tab.

The model number is located on the back of the wired controller. It will start with the letters “MWR."

Yes, the new platform is compatible with up to two indoor units.

Using the direct connection into the gateway through its CAT 5 port to a laptop, use the built in interface software (Microsoft Silverlight Software) to complete the following steps: 

1. Select system settings
2. Locate BACnet gateway information
3. Select Recipient List Initialize

Once complete, the BMS system can share the Samsung system data.

If there is a communication error between the indoor unit and the wired controller (E604) be sure the correct wired controller is being used. Always refer to submittals if there is any uncertainty. Submittals are located in the Tech Documents section under the Training & Support tab.

The 2 wire controllers (F3, F4) are used for NASA communication systems including Light Commercial (CAC) and Commercial (DVM S).  

The 4 wire controllers (F3, F4, V1, V2) are used for NON-NASA systems. NON-NASA includes Residential (RAC), Free Joint Multi (FJM), and DVM Plus Series units.