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HR & Sub MCU Chart

Case

Correct installation*

Incorrect installation

HR Installation

(HR changer required)

HR Changer

Sub MCU

Serial

Installation

Changer

Sub MCU

Sub

MCU

HR Changer

Cooling only

Indoor unit

Installation

Cooling Only

Changer

Sub MCU

Cooling Only

HR Changer

Sub MCU

Parallel

Installation

HR Changer

Sub MCU

HR Changer

Sub MCU

HR Changer

*Refrigerant supply pipes to HR changer can only enter on one dedicated side of the HR Changer. The images above are for simple explanation only. Refer to

the HR changer installation manual for full details.

Summary of Contents for ECO HP

Page 1: ...eference Guide Important Notice This is not a substitute for the installation or service manuals As new products are released this list will be changed Samsung is in no way responsible for inaccuracies This document is intended to be used as a reference ...

Page 2: ...PCB ODU to IDU Communications 5vdc 12 vdc Samsung accessories To Controller 485 12 Vdc Outdoor Unit Terminal Block Wired Remote to Indoor Unit Terminal Block Indoor Unit Terminal Block F1 F2 V1 V2 F3 F4 F1 F2 Set Layer ODU to IDU Communications 5vdc R1 R2 Control Layer Outdoor Unit to DMS Centralized Control ...

Page 3: ...t Minimum 36 straight line between Y joints HR Changer Mandatory device for indoor unit mode changeover HR Changer is installed as the first device in the refrigerant piping network Heat recovery only Cool only indoor unit is connected to the HR Changer low pressure gas and liquid outgoing pipes Sub MCU required for additional indoor unit zones after the HR Changer Standard HR Piping for heat reco...

Page 4: ... MCU HR Changer Cooling only Indoor unit Installation Cooling Only HR Changer Sub MCU Cooling Only HR Changer Sub MCU Parallel Installation HR Changer Sub MCU HR Changer Sub MCU Sub MCU HR Changer Refrigerant supply pipes to HR changer can only enter on one dedicated side of the HR Changer The images above are for simple explanation only Refer to the HR changer installation manual for full details...

Page 5: ...F Port not used 1 Port A used Port A not used 2 Port B used Port B not used 3 Port C used Port C not used 4 Port D used Port D not used Second DIP switch bank 1 Port E used Port E not used 2 Port F used Port F not used Use the rotary dial to give each MCU its own individual address 10 s 1 s MCU Settings HR changer Sub changer 4 F E D C B A Below Port Use Selection Dip Switch Settings Capacity per ...

Page 6: ...tion settings DIP switches Commissioning Service modes K1 K2 K3 K4 Tactile switches Outdoor unit option set Indoor unit quantity set Commissioning Service modes K1 K2 K3 K4 Tactile switches System PCB Identification 5 36 48 53 MBtu h Heat Pump Models 60 MBtu h HP Model All HR Models ...

Page 7: ...ches SW51 SW52 With system powered off Set the connected indoor unit quantity on the ODU PCB When the ODU is powered up The system will automatically address the IDU s Option Manual addressing remote controller or SNET Pro 2 SW51 10 s SW52 1 s 36 48 53 Btu HP Initial System Settings 6 ...

Page 8: ... Function K6 ON Snow prevention Used Default OFF Snow prevention Not used K7 K8 ON ON Target evap temp 7 9 C 44 6 48 2 F Default ON OFF 5 7 C 41 44 6 F OFF ON 9 11 C 48 2 51 8 F OFF OFF 10 12 C 50 53 6 F K9 K10 ON ON Night quiet mode not used Default ON OFF Step 1 OFF ON Step 2 OFF OFF Step 3 ...

Page 9: ...tion heating Default ON OFF Default 28 4 psi OFF ON Default 14 2 psi OFF OFF Default 14 2 psi K13 K14 ON ON 3 ton Default 4 ton Default ON OFF Max current 4 A Max current 2A OFF ON Max current 6 A Max current 4 A OFF OFF Max current 8 A Max current 6 A K15 K16 ON ON MID Default ON OFF MID OFF ON LOW1 Humidity OFF OFF LOW2 Humidity ...

Page 10: ...t temperature difference between the heat exchanger suction gas and ambient For installations with high humidity which creates too many defrost cycles defrost interval can be changed to LOW1 or LOW2 K5 K6 Heating capacity is reduced in this operation Outdoor Unit Option Settings Defrost Interval Adjustment 9 Switch Position Function K15 K16 ON ON Humidity MID1 Default ON OFF Humidity MID2 OFF ON H...

Page 11: ...s hold K2 to save and exit Segment will display Ad 00 then UP Quantity of MCU HR only Step 4 Press K1 NC 00 Ready to set Default Step 5 K2 NC X0 Ten digit setting K4 NC 0X Ones digit setting Hold K4 for 2 seconds for auto detection mode Heat recovery setting Step 6 Press K1 ht 00 System type Step 7 Press K4 ht 00 Heat pump Default ht 01 Heat Recovery Must set Step 8 Hold K2 Exit Save Unit will dis...

Page 12: ... PBA of the outdoor unit to start the Auto pipe pairing operation Display The operation takes about 25 to 55 minutes normally depending on the number of indoor units connected Max 2hours Step 1 Start Steps 2 8 Setup Step 9 Check Step 10 Confirmation Temperature Outdoor temp 75 Outdoor temp 75 85 Outdoor temp 86 Avg Indoor temp 75 Main heating operation Main heating operation Main cooling operation...

Page 13: ... SEG 1 2 Quickly pressing K2 button One time 3 Shortly press the K2 button to adjust the value of SEG 3 4 to match the desired option number Example 4 After setting the number values in SEG 1 2 3 4 for the function option you want to change Press and hold the K2 button for 2 seconds or more to save 5 All Segments will BLINK and begin tracking NOTE Press and hold the K1 button to reset values to pr...

Page 14: ...mp of the indoor unit will decrease 0 1 41 44 F Default B type PBA 0 2 48 51 F 0 3 50 53 F 0 4 51 55 F 0 5 53 57 F 0 6 55 57 F Outdoor Setting 13 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then press and hold the K...

Page 15: ...nit will decrease 0 1 362 PSI 0 2 377 PSI 0 3 391 PSI 0 4 406 PSI 0 5 420 PSI 0 6 449 PSI 0 7 464 PSI 0 8 478 PSI Outdoor Setting 14 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then press and hold the K2 button to s...

Page 16: ... 0 1 95 0 2 90 0 3 85 0 4 80 0 5 75 0 6 70 0 7 65 0 8 60 0 9 55 1 0 50 1 1 No restriction Outdoor Setting 15 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then press and hold the K2 button to save the setting Press K3...

Page 17: ... lakes rivers etc 0 1 High humidity Outdoor Fan Speed Main Sub PCB 0 6 0 0 Disabled Default Changing this setting will increase fan speed to maximum value 0 1 Increase fan speed Outdoor Setting 16 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and st...

Page 18: ...rnal contact Main PCB 0 7 0 4 Level 1 Manual Heat Recovery When using MIM B14 installed in the outdoor unit 0 5 Level 2 Manual 0 6 Level 3 Manual Outdoor Setting 17 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then p...

Page 19: ...its 0 2 Unused Unused 0 3 Type 2 Outdoor unit lower than indoor unit When indoor units are over 98ft above the outdoor unit Outdoor Setting 18 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then press and hold the K2 b...

Page 20: ...0 0 Disable Default 0 1 Energy saving mode Energy saving triggers when the room temperature reaches desired set point Heating mode only 0 2 Rapid Cooling Heat Recovery Increase cooling speed Outdoor Setting 19 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system ...

Page 21: ...ven if system is not operating 0 1 Disabled Silent mode external contact Main PCB 1 5 0 0 Unused Heat pump only When using MIM B14 installed in the outdoor unit 0 1 Level 1 0 2 Level 2 0 3 Level 3 Outdoor Setting 20 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the s...

Page 22: ...ump down Main PCB 1 9 0 0 Disabled Default Heat Recovery When gas leak is detected enter the pump down operation 0 1 Enable Outdoor Setting 21 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then press and hold the K2 b...

Page 23: ...high humidity condition 0 2 Indoor unit low humidity Base heater Main PCB 2 3 0 0 Disabled Default Heat Recovery 0 1 Enabled Outdoor Setting 22 NOTE Press and hold the K1 button to reset values to previous settings Press and hold K4 to restore to factory default settings Once you release K4 for factory default wait until the system resets and starts the tracking process Then press and hold the K2 ...

Page 24: ...ettings should be made through the outdoor PCB and S Net Verify that the proper charge has been added and the service valves are fully open To enter Auto Trial Operation Press and hold K1 for 5 seconds The display will change to K K Once successfully completing Auto Trial the system will stop operation and the display will begin to scroll connected equipment addressing UP Un Prepared 23 K1 K2 K3 K...

Page 25: ...trial operation K K BLANK BLANK K1 No of presses Key Operation Display on segment 1 time Refrigerant charging in Heating K 1 BLANK BLANK 2 times Trial operation in Heating K 2 BLANK BLANK 3 times Pump out in Heating K 3 BLANK 1 4 times Vacuuming K 4 BLANK 1 5 times End Key View Mode Key operation 24 ...

Page 26: ...ng Heating for trial operation K 8 BLANK BLANK 5 times Refrigerant check mode K 9 X X 6 times Discharge made DC line voltage K A BLANK BLANK 7 times Forced defrost K B BLANK BLANK 8 time Forced oil return K C BLANK BLANK 9 times Inverter compressor check K D BLANK BLANK 10 times H R Piping check operation H P not used K E BLANK BLANK 11 times End Key operation K3 No of presses Key operation Displa...

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