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Sinclair SAHK Series Service Manual

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FULL DC INVERTER SYSTEMS
SERVICE MANUAL
SAHK-xx
S I N C L A I R A I R H A N D L I N G K I T

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  • Page 1 FULL DC INVERTER SYSTEMS SERVICE MANUAL SAHK-xx S I N C L A I R A I R H A N D L I N G K I T...

  • Page 2: Important Note

    Original instructions IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

  • Page 3: Table Of Contents

    CONTENTS 1 Introduction ....................3 2 System Layout ....................4 3 VRF-AHU System Schematic ............... 5 4 Product Lineup ................... 5 5 Nomenclature .................... 6 6 Typical Applications ................... 6 7 Main PCB Ports ..................8 8 Dip Switch Definitions ................11 9 Piping Diagrams ..................

  • Page 5: Introduction

    1 Introduction The AHU Kit can be connected to the heat pump/heat recovery/cooling only ODU and the third party AHU. Every third party AHU can be connected to one AHU Kit or to several AHU Kites in a parallel connection (up to four). This manual describes how to install and operate an AHU Kit.

  • Page 6: System Layout

    2 System Layout Name Description Supports heat pump type and heat recovery type VRF ODUs Reserve brazing joint for the refrigerant inlet/outlet pipe Third-party AHU Only air-cooled direct expansion AHU is supported Connecting piping between ODU and AHU For piping diameters, see Pipe Layout in the related ODU Connecting piping between ODU and the kit, Installation Manual connecting piping between AHU and the kit...

  • Page 7: Vrf-Ahu System Schematic

    Figure 1-1.1: System schematic The system is composed by largely indoor and outdoor parts. Outdoor part is Sinclair VRF outdoor unit. Indoor part concludes other brand direct expansion type AHU (Local supply) and Sinclair AHU VRF AHU Kit. AHU Kit forms the connection between Sinclair VRF outdoor unit and other brand or Sinclair brand direct expansion type AHU.

  • Page 8: Nomenclature

    01: 9-20kW 02: 20-36kW 03: 36-56kW Sinclair VRF AHU Kit 6 Typical Applications 6.1 Single VRF AHU Kit connect to one AHU When the type AHU’s capacity is less than 224kW, single VRF-AHU Kit connects to one AHU method is suggested.
  • Page 9 6.2 Multiple VRF AHU Kit connect with one AHU When the type AHU’s capacity is large than 224kW, multiple VRF AHU Kites connect to one AHU method is suggested. Maximum 4 VRF AHU Kites can be combined to connect large capacity AHU. Figure 6-2.1: Multiple VRF-AHU Kit connect to one AHU Notes: The example is just for application illustration.

  • Page 10: Main Pcb Ports

    7 Main PCB Ports Figure 7-1.1: SAHK-(00, 01, 02, 03) F Main PCB Ports...
  • Page 11 Label in Figure 7- Port code Content Port voltage PCB power supply input 220 V~ AC CN47-2 HIGH Fan speed power input-HIGH 220 V~ AC CN48-1 MIDDLE Fan speed power input-MIDDLE 220 V~ AC CN48-2 Fan speed power input-LOW 220 V~ AC CN49 PUMP Pump running signal output...
  • Page 12 CN21 P Q E Connect to the ODU communication interface P/Q/E 2.5-2.7V DC Master-slave independent Kit communication CN24 C1 C2 E 2.5-2.7V DC interface D1(X) D2(Y) Connect in case group wired controll supplied by CN22 2.5-2.7V DC factory CN43-10, CN43-9 0-3.3V DC TA Temperature sensor (power supply)

  • Page 13: Dip Switch Definitions

    8 Dip Switch Definitions Definitions of each bit of SW1: ● SW1-1 is 0: shutdown compensation temperature (cooling) is 0⁰C (factory default) ● SW1-1 is 1: shutdown compensation temperature (cooling) is 2⁰C (outlet air temperature control is invalid) Valid for the master unit only ●...
  • Page 14 Definitions of each bit of SW2: ● SW2-1 is reserved ● SW2-2 is 0 and SW4-3, SW4-4 is 00: Energy demand/fan speed/mode all adopt Sinclair controller mode. SW2-2 is 0 and SW4-3, SW4-4 is 01: ● Energy demand: input energy demand gear value 0-10V through third-party controller.
  • Page 15 ● SW3-3 and SW3-4 are 01: temperature ● SW3-3 and SW3-4 are 01: Outlet air compensation in heating mode is 2⁰C. (By temperature control is invalid. (By Sinclair Sinclair Controller) Controller) Valid for the master unit only ●...
  • Page 16 Definitions of each bit of SW4: ● SW4-1 is 0: return air temperature control (factory default) ● SW4-1 is 1: outlet air temperature control Valid for the master unit only ● SW4-2 indicates high bit (ON indicates + 16) ● SW4-3 and SW4-4 are 00: factory controller mode (factory default) Valid for the master unit only...
  • Page 17 Definitions of each bit of SW9: ● SW9-2 is 0: mode 1 of AHU Kit connecting to valve body in parallel (one coil is connected to multiple Kites; shielding faults from the slave unit's temperature sensors T1, T2, T2A, T2B and TA) (factory default) ●...
  • Page 18 Definitions of each bit of SW10: ● 00: SAHK-00 model ● 01: SAHK-01 model ● 10: SAHK-02 model ● 11: SAHK-03 model Note: The DIP switches of AHUKZ-04D and AHUKZ-05D are the same with that of AHUKZ-03D: 11. Therefore, they need to be differentiated with the capability code.

  • Page 19: Piping Diagrams

    9 Piping Diagrams SAHK-00 / SAHK-01/ SAHK-02 / SAHK-03 Key components: 1. Electronic Expansion Valve (EXV): Controls refrigerant flow and reduces refrigerant pressure. 2. Filter: Protects the EXV. Prevents the rust and dust going into the EXV.

  • Page 20: Wiring Diagram

    10 Wiring Diagram SAHK-00 / SAHK-01 / SAHK-02/SAHK-03 Figure 12-10.1 SAHK-(00, 01, 02, 03)F wiring diagram...

  • Page 21: Troubleshooting

    11 Troubleshooting 11.1 Error Code Priority Definition Displayed Content Emergency stop R32 refrigerant leaks, requiring shutdown immediately Outdoor unit fault The AHU Kit slave unit fault Self-check fault MS (refrigerant flow direction switching device) fault Mode conflict 1# EEV coil fault 2# EEV coil fault Water level switch alarm Duplicate IDU address code...

  • Page 22: Spot Check

    11.2 Spot Check Display panel is checked with wired controller No. Parameter displayed on the wired controller during Kit check IDU address (If there are multiple addresses, they are displayed one by one every 0.5s) Capacity HP of IDU (When multiple units are connected in parallel, the total HP of master and slave units is displayed) Set temperature value or set voltage value Set temperature value or input capacity gear value executed by the program T0 temperature (supply air temperature control) or T1 temperature (return air temperature)
  • Page 23 11.3 General ➢ Sections 11.2 and 11.3 describe some initial troubleshooting steps that can be taken when an error occurs. If these steps do not resolve the issue, arrange for a professional technician to investigate the problem. Do not attempt further investigations or troubleshooting yourself.
  • Page 24 11.4 A01 – Emergency shutdown Error display b x, " " ( " " Error impact " " ( " " Error trigger Error recovery ◼ Possible cause ◼ Find out the cause of the emergency shutdown and solve it before clearing the emergency shutdown signal Check whether the Replace the main control...
  • Page 25 11.5 A11 - R32 refrigerant leaks, requiring shutdown immediately Error display b x, ◼ Error impact ◼ " " " " I Error trigger Error recovery ◼ ◼ ◼ Possible cause ◼ Follow the instructions of there any R32 refrigerant Note (1) leaks in the pipes? Replace...
  • Page 26 " " ), " " Note 2: Step 1: Refrigerant leakage inspection method and refrigerant leakage treatment ◼ v v b Part2：RSD－ Part1： ODU－ ◼ ◼ ’ ◼ ◼ ( ) I...
  • Page 27 Step 2: Reset the R32 refrigerant detection device. b EERP Step 3: Wired controller reset operation. " " " "...
  • Page 28 11.6 A51 - ODU fault Error display b x, " " "E ") Error impact ◼ ◼ Error trigger ≥ Error recovery ◼ Possible cause ◼ Troubleshoot ODU according to ODU Maintenance Guide Troubleshooting Check Replace the main control whether the fault is board of the IDU cleared Fault cleared...
  • Page 29 11.7 A74 - The error of the AHU Kit slave unit is sent to the master unit ‘ ’ ( Error display Error impact Error trigger Error recovery ◼ Possible cause ◼ Check the running status of the slave unit, confirm and resolve the error (1) Error in slave unit...
  • Page 30 11.8 A81 - Self-check fault Error display b x, ◼ ◼ " " ( " ") ); I Error impact ◼ " ", " " ◼ Error trigger Error recovery ◼ ◼ Possible cause ◼ A81/A82 Open the MS electric control box connected to the IDU and check the error code displayed on...
  • Page 31 11.9 A82 - MS (refrigerant flow direction switching device) fault Faulty IDU b x, ◼ " ", ◼ " " Error impact ◼ ◼ " " ( " " Error trigger Error recovery Possible cause A81/A82 Open the MS electric control box connected to the IDU and check the error code displayed on...
  • Page 32 11.10 A91 - Mode conflict (SDV5 communication protocol adopted) b x, Error display Error impact ◼ ◼ Error trigger ◼ Error recovery ◼ Possible cause ◼ Reset IDU After operating mode Replace the main control (1), is the error board of the IDU cleared? Troubleshooting Fault cleared...
  • Page 33 11.12 b11, b13 - Error in 1# electronic expansion valve coil, error in 2# electronic expansion valve coil Error display b x, Error impact Error trigger Error recovery ◼ ◼ Possible cause ◼ ◼ b11/b13 (1) Is the electronic expansion valve coil plugged into the Reconnect the plug tightly EXV port in the IDU main...
  • Page 34 EEV , EEV , EEV , Ω Ω Ω Ω B direction A direction A-direction plug pin B-direction plug pin...
  • Page 35 11.13 b36 - Water level switch alarm error Error display b x, Error impact Error trigger Error recovery ◼ ◼ ◼ Possible cause ◼ ◼ Cause 1: The water pump Remove dirt and clean suction or discharge is the drainage pan and blocked by dirt drain pipe Cause 2: The water level...
  • Page 36 Ω I b v v : ) I ≥ %)
  • Page 37 11.14 C11 - Duplicate IDU address code Error display " " "E ") Error impact ◼ ◼ " " " ") Error trigger Error recovery ◼ (▲) Possible cause ◼ Locate the IDU that reports repeated addresses. Reset the address (1) Is the address repeated? Replace the main control...
  • Page 38 ( P) ( P) ( W) (★) W< P< ≤ W< ≤ P< b X, ≤ W< ≤ P< b X, : X+ , X+ , X+ ≤ W ≤ P< b X, < : X+ , X+ , X+ , ≤...
  • Page 39 " " " " (★ ) " " " " > , " " > ) ; (★ ) ★ Ex : I I ★Ex : I I , , , ), I...
  • Page 40 11.15 C21 - Abnormal communication between IDU and ODU Error display b x, " " "E ") Error impact ◼ ◼ " " " ") Error trigger Error recovery Possible cause ◼ (PQE PQ): Cause 1: P/Q/E co mmun ica tion Pro perly conn ect the cable short-circuits or cuts off (1) cable...
  • Page 41 ◼ Cause 1: M1/M2 cable short- Properly connect the circuits or cuts off (1) cable Cause 2: The repeater UP and DOWN ports are not Properly connect the connected to the cable corresponding indoor unit (2) Check the power supply Cause 3: The power supply of of the repeater and repeater is cut off...
  • Page 42 Upstream IDU and ODU of repeater 1# (including master ODU) Master ODU IDU 10# IDU 1# Repeater 1# Repeater 2# IDU 11# IDU 20# IDU 21# IDU 30# Downstream IDUs of repeater 1# Upstream IDUs Downstream IDUs of repeater 2# of repeater 2# PQ (...
  • Page 43 11.16 C51 - Abnormal communication between the IDU and wired controller : " " ; ) P b x: Fault Display : " " ; ) P b x: " " ◼ Fault Impact ◼ ◼ Fault Trigger ◼ Fault Recovery Possible Cause ◼...
  • Page 44 Cause 1: The communication Replace the communication wire does not meet anti- wire that meets the anti- interference requirements interference requirements Cause 2: The communication is bonded and connected or Reconnect the signal cable the wire end metal oxidation according to the wiring exists, leading to the requirements connection failure...
  • Page 45 11.17 C61 - Abnormal communication between the IDU main control board and display control board Error display " " " "; " " Error impact ◼ Error trigger ◼ Error recovery ◼ ◼ ◼ Possible cause ◼ ◼ ◼ ◼...
  • Page 46 Cause 1:Unplug the Reconnect the display box or panel communication cable or communication wire from re-power the IDU the main control board of powered indoor unit. Use correct port by Cause 2:Use a wrong referring to the port w7iring diagram Cause 3:The communication wire between the display...
  • Page 47 11.18 C71 - Abnormal communication between AHU Kit slave unit and master unit Error display Error impact Error trigger Error recovery ◼ ◼ Possible cause ◼ ◼ Properly connect the cables Are communication cables loose or communication ports and ensure they are connected wrong? to the right ports Is the communication...
  • Page 48 Error display Error impact ◼ ◼ " " " ") Error trigger Error recovery ◼ Possible cause ◼ ◼ ◼ Cause 1: The actual number of Set the number of AHU AHU Kits is different from the Kits based on the actual set number situation Cause 2: The address setting...
  • Page 49 11.20 C76 - Abnormal communication between the main wired controller and secondary wired controller Error display " " Error impact Error trigger Error recovery ◼ ◼ Possible cause ◼ Cause 1: The co mmuni cation Replace th e cable between th e seconda ry commu nicatio n cable an d wired controller and the ma in prop erly conn ect the...
  • Page 50 11.21 C77, C78 - Abnormal communication between IDU main control board and 1# Expansion Board, abnormal communication between IDU main control board and 2# Expansion Board Error display b x, Error impact # Ex Error trigger Error recovery Possible cause Cause 1: The communication Replace the cable between the Expansion...
  • Page 51 11.22 C79 - Abnormal communication between the IDU main control board and Switch module Error display b x, Error impact Error trigger Error recovery Possible cause Cause 1: The communication Replace the cable between the main control communication cable board of the IDU and the Switch and properly connect module has become disconnected the cable...
  • Page 52 Error display b x, Error impact Error trigger Error recovery Possible cause Cause 1: Spo t ch eck th e in let air temperature and measure the It is a normal pro tection inle t air tempe rature. If th e p oint measure fo r the IDU.
  • Page 53 11.24 d17 - Air inlet temperature of IDU is too high in cooling mode Error display b x, Error impact Error trigger Error recovery Possible cause Cause 1: Spot check the inlet air It is a normal temperature and measure the inlet air protection measure for temperature.
  • Page 54 11.25 E21, E24, E81 - T0 (fresh inlet air temperature sensor) short-circuits or cuts off, T1 (IDU return air temperature sensor) short-circuits or cuts off, and TA (outlet air temperature sensor) short-circuits or cuts Error display b x, Error impact Error trigger Error recovery ◼...
  • Page 56 11.26 EC1 - R32 refrigerant leakage sensor fault Error display b x, Error impact Error trigger Error recovery Possible cause Troubleshooting b EERP...
  • Page 58 11.27 F01, F11 - T2A (heat exchanger liquid pipe temperature sensor) short-circuits or cuts off, T2 (heat exchanger middle temperature sensor) short-circuits or cuts off Error display b x, Error impact Error trigger Error recovery ◼ ◼ Possible cause ◼ F01/F11/F21 (1) Is the temperature sensor...
  • Page 59 11.28 P71 - Main control board EEPROM fault Error display b x, Error impact EEPR (EEPR Error trigger Error recovery ◼ Possible cause ◼ Power off and then power on the IDU Troubleshooting Replace the main control Is the fault cleared? board of the IDU The main control board of IDU is normal and...
  • Page 60 11.29 P72 - IDU display control board EEPROM fault Error display Error impact EEPR (EEPR Error trigger Error recovery ◼ Possible cause ◼ Power off and then power on the IDU Troubleshooting Replace the display Is the fault cleared? control board The display control board is normal and subject to external interference...
  • Page 61 11.30 U11 - Unit model code not set Error display b x, ◼ ◼ " " "E " Error impact ◼ ◼ " " " " Error trigger Error recovery ◼ Possible cause ◼ Use the dedicated tooling (1) to set the model code for the main control board of IDU, and power on the unit again...
  • Page 62 11.31 U12 - Capacity(HP) code not set Error display b x, ◼ ◼ " " Error impact ◼ ◼ " " Error trigger ( P) Error recovery ◼ ( P) Possible cause ◼ Use the dedicated tooling (1) to set the capacity(HP) code for the main control board of IDU, and power on the...
  • Page 63 11.32 U14 - The capacity value of the AHU Kit DIP switch does not match the model Error display b x, Error impact Error trigger Error recovery ◼ Possible cause ◼ According to the capacity DIP switch rules, set the correct DIP switch value and power on again Troubleshooting...
  • Page 64 11.33 U15 - The DIP value of AHU Kit's fan speed output voltage is incorrect Error display b x, Error impact ： Error trigger > > Error recovery ◼ < E < E Possible cause ◼ Reset the DIP switch values according to the requirement of ENC2 <...
  • Page 65 11.34 U38 - Address code not detected Error display b x, " " Error impact "E ") " " ( " ") Error trigger Error recovery ◼ Possible cause ◼ Use the remote controller or wired controller (1) to set the address code for the main control board of IDU, and power on the unit again...

  • Page 66: Accessories

    12 Accessories Name Shape Quantity Function Installation & Owner’s Manual Wired controller Wired controller Electronic Expansion valve extension cable Fixed clamp of temperature sensor Sleeve Temperature sensors Temperature sensors extension cables Screw ST 3.9x25 Secure the installation board Plastic expanded tube Cable Tie...

  • Page 67: Appendix

    13 Appendix 13.1 Temperature Sensor Resistance Characteristics Table 13.1: Indoor ambient temperature sensor, indoor heat exchanger mid-point temperature sensor and indoor heat exchanger outlet temperature sensor resistance characteristics Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance (°C) (kΩ) (°C) (kΩ) (°C) (kΩ) (°C)
  • Page 68 United Kingdom www.sinclair-world.com This product was manufactured in China (Made in China). R E P R E S E N T A T I V E SINCLAIR Global Group s.r.o. Purkynova 45 612 00 Brno Czech Republic T E C H N I C A L S U P P O R T SINCLAIR Global Group s.r.o.

This manual is also suitable for:

Sahk-00Sahk-01Sahk-02Sahk-03

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