Air Handling Unit Application Kit Installation manual MXD-K100XN • Thank you for purchasing this Samsung air conditioner. • Before operating this unit, please read this user manual carefully and retain it for future reference.
Safety Information The following safety precautions must be taken when installing the unit. Be aware that AHU-KIT has to be combined with “AC026MXADKH/EU, AC035MXADKH/EU, AC052MXADKH/EU, AC071MXADKH/EU, AC100MXADKH/EU, AC100MXADNH/EU, AC120MXADKH/EU, AC120MXADNH/EU, AC140MXADKH/EU, AC140MXADNH/EU, AC180JXAPNH/EU, AC200KXAPNH /EU, AC250KXAPNH/EU” outdoor unit only. Use R410A refrigerant. When using R410A, moisture or foreign substances may affect the capacity and reliability of the product.
Safety Information CAUTION Arrange the cables between the AHU-KIT and Install designated ELB for AHU when installing the outdoor unit after connecting. power cable. Attach the cover securely so that the electrical If you do not install designated ELB for AHU, ●...
The manufacturer is not responsible for the damage occurred by not keeping standard of the installation. Samsung does not accept any responsibility or liability for the performance and regulatory compliance of the local system HVAC solution provider must ensure that the local system design and AHU design comply with all applicable regulations.
Accessories Accessories Room/EVA IN EVA OUT sensor EVA OUT sensor EVA IN sensor holder ITEM sensor holder Sensor clip (10 m) (OD Ø 6.8 mm) (10 m) (OD Ø 7.8 mm) QUANTITY IMAGE ITEM Aluminum tape Rubber tape Insulator QUANTITY 85㎜...
Before Installation AHU-KIT Structure Diagram Outdoor Unit External Controller ON/OFF SWITCH (field supply) Communication F1, F2 OPERATION LAMP ERROR LAMP Simple BMS (field supply) Liquid pipe Supply Air EVA IN Return Air Exhaust Air Fresh Air Sensor Room Sensor EVA OUT Sensor Remote Controller (optional)
Installation Control-KIT Installation CAUTION • Supplied sensor in the Accessory box is 10m. • Close the box with the cover and cable-nut securely so that Control-KIT is fireproofed. • Avoid installing the unit in a location exposed to direct sunlight or rain. 1) Drill 4 holes on the correct position of the wall and fix the Control-KIT securely.
Installation Control-KIT Function • Control-KIT controls the system through outdoor unit and wired remote controller. • Control-KIT outputs the contact signal for AHU fan operation. AHU when operating in Cool/Heat/Fan mode. This contact signal output can not be used as power supply for the motor.
Control-KIT Circuit Diagram Only DVM Model OPTION RESISTANCE VALUE OF TEMPERATURE SENSOR English...
Installation External Controller Diagram (MIM-B14) output AHU-KIT PBA Install option set up WIRE Signal Install option AC LAMP 1, 2 Error check output 3, 4 Operation check output SEG 15 5, 6 ON/OFF input SEG 14 CAUTION • In order for AHU-KIT to be controlled by External control, change a digit of indoor unit installation option, set the SEG14 as “1”.
Shielding [Voltage] decreasing 4.95V temperature 4.8V 4.65V 4.6V 4.55V 4.25V 4.4V increasing temperature CAUTION • Hysteresis is applied to the end of voltage range in order to stabilize the analog input. The amount of Hysteresis Room temperature setting: 0.15 V English...
Installation Operational Voltage range against Setting temperature Room temperature setting Set Temperature Simple BMS Voltage Range Heating Cooling 10.0 V ~ 9.6 V 9.6 V ~ 9.2 V 9.2 V ~ 8.8 V 8.8 V ~ 8.4 V 8.4 V ~ 8.0 V 8.0 V ~ 7.6 V 7.6 V ~ 7.2 V 7.2 V ~ 6.8 V...
Setting the temperature • Keep the power supply of Simple BMS in 10 V ± 0.2 V. • If the Simple BMS uses variable resistor(VR), make the electric resistance of VR under 1㏀. • Simple BMS which uses variable resistor(VR) need to be connected to the AHU-KIT with 1:1 link. •...
Installation Connecting the Power Terminal Connecting Power/Communication cable • Turn off the power before connecting the power terminal. • Maximum cable length and the amount of voltage drop for AHU power/communication cables should be under • Consider power usage of the AHU when installing the ELB. •...
Control-KIT Connections POWER[AC] FAN ON[AC] FAN CHECK[DC] 1(L) 1(N) 1(L) 1(N) Fan status feedback (Non-voltage contact signal) 220 - 240 V(208 - 230 V for US), AHU fan ON contact signal 220 - 240 V(208 - 230 V for US), Power supply Outdoor unit Wired remote controller...
Installation Sensor Installation CAUTION • Please check sensor usage in label. 1) EVA IN sensor should be attached after the distributor, on the coldest part of the heat exchanger pipe. 2) EVA Out sensor should be attached on the middle of inlet and outlet ports. 3) EVA IN/OUT sensor should be insulated for optimized system performance.
Sensor installation example 1 1) Check the sensor and the sensor holder. NOTE Sensor clip Sensor holder Type Sensor OD(mm) Sensor holder ID (mm) EVA IN sensor Ø 6 Ø 6.8 EVA OUT sensor Ø 7 Ø 7.8 Insulator Sensor 2) Braze the sensor holder on the selected location of the pipe.
Installation Sensor installation example 2 1) Check the sensor and the sensor holder. NOTE Sensor Sensor holder ID Insulator Cable-tie Type Sensor OD (mm) (mm) EVA IN sensor Ø 6 Ø 6.8 Rubber tape Aluminum tape EVA OUT sensor Ø 7 Ø...
Function Setting Setting an indoor unit address and installation option Set the indoor unit address and installation option with remote controller option. Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time.You need to set twice when setting indoor unit address and installation option.
Function Setting Option setting Status 1. Setting SEG2, SEG3 option Press Low Fan button( ) to enter SEG2 value. Press High Fan button( ) to enter SEG3 value. SEG2 SEG3 Each time you press the button, will be selected in rotation. 2.
Option setting Status 1. Setting SEG16, SEG17 option Press Low Fan button( ) to enter SEG16 value. Press High Fan button( ) to enter SEG17 value. SEG16 SEG17 Each time you press the button, will be selected in rotation. 2. Setting Dry mode Press Mode button to be change to Dry mode in the OFF status.
Function Setting 1. Check whether power is supplied or not. When the indoor unit is not plugged in, there should be additional power supply in the indoor unit. 2. The reception part of a remote controller is built in the AHU KIT PBA. 3.
1. Check whether power is supplied or not. When the indoor unit is not plugged in, there should be additional power supply in the indoor unit. 2. The reception part of a remote controller is built in the AHU KIT PBA. 3.
Function Setting Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 (*1) Use of hot Explanation PAGE Use of Heater Controller variables for auxiliary heater Master / Slave water heater Details Time delay Indication Details Indication Details Indication Details Indication Indication Details temperature for for auxiliary auxiliary heat on...
(*1) Heater operation when the SEG10 of 02 series installation option is set to using external heater. e.g. 1) Setting 02 series SEG10=“2” / Setting 02 series SEG11 =“0” : External heater is turned on at the same time as the heating thermostat is on, and turned off when the heating thermostat is off.
Function Setting Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Heating setting Cooling thermo Heating thermo off Explanation temp. Offset off Hysteresis Hysteresis Indication Details Indication Details Indication Details Indication Details Option SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Skip the prevention Explanation PAGE Fan Feedback...
Changing a particular option You can change each digit of set option. Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 The tens’ digit of an The unit digit of an The option mode you Explanation PAGE MODE option SEG you will option SEG you will Changed value want to change...
After Installation AHU-KIT Installation Check 1) Ensure that Control-KIT is correctly installed. • You can choose the built-in type or auxiliary type depending on installation environment. • Ensure that the Control-KIT cables are correctly connected. • Control-KIT should be fireproofed and avoid direct sunlight upon installation. (Especially for individual type) •...
Troubleshooting Initial Check-up 1) Check the connection status between Indoor unit and the AHU-KIT. • Make sure you have followed instructions and wiring diagram shown in the installation manual. • Make sure AHU-KIT PBA is installed in a place where there are no influence from outdoor humidity, dust and temperature.
Troubleshooting Sensor Error (ROOM sensor OPEN/SHORT) Outdoor unit display (EVA IN sensor OPEN/SHORT) (EVA OUT sensor OPEN/SHORT) Explanation When OPEN/SHORT signal is received for temperature sensor of AHU-KIT Reason Poor connection between sensor and the PBA, or poor conditioned sensor. 1) Self check Is indoor room temperature sensor connector properly connected to...
Fan Error Outdoor unit display When Control-KIT outputs fan operation status signal and the fan feedback Explanation signal stays OPEN for more than 10 seconds.( AHU-KIT only) • Poor AHU fan operation Reason • Missing or Incorrect circuit system for fan feedback check. 1) Self check Set the Install option 05 series SEG21 “0”.
Troubleshooting In-tracking Error Outdoor unit display Communication error between AHU- Explanation 1) Self check KIT and the outdoor unit Reason Refer to following self check Check the number of AHU-KIT set up on outdoor unit PBA is equal to actual number of AHU-KIT installed.
Outdoor unit display Communication is off for 2 minutes between AHU-KIT and the outdoor unit during operation. Explanation (Ensure room) Reason Communication error between AHU-KIT and the outdoor or incorrect AHU-KIT number setting 1) Self check Press the reset KEY(K3) on the outdoor unit PBA and check the display.