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AHU connection kit

AHU connection kit. 1. What is AHU connection kit?. Chigo AHU connection kit is an interface to allow 3 rd party manufacturer’s AHU connecting to Chigo VRF outdoor units. Chigo VRF outdoor units can be used with this connection kit, creating an ideal solution when a unique AHU is required.

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AHU connection kit

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  1. AHU connection kit

  2. 1. What is AHU connection kit? • Chigo AHU connection kit is an interface to allow 3rd party manufacturer’s AHU connecting to Chigo VRF outdoor units. • Chigo VRF outdoor units can be used with this connection kit, creating an ideal solution when a unique AHU is required. • One AHU need at least one AHU kit.

  3. 2. Kit configuration • AHU connection kit consist of control part, EXV part, temperature sensors and wired controller. EXV part Controller AHU connection kit Control part Sensors and wires

  4. 3. System schematic Chigo VRF outdoor unit Chigo VRF indoor unit 3rd party AHU

  5. 4. System configuration Supplied by Chigo Purchase in the market

  6. 4. System configuration Power supply Power supply P/Q/E T1/T2/T2B Fan/pump G/L pipe Power supply

  7. 5. Wiring terminals • Reserved fan, pump, water level switch control terminals for AHU. • ON/OFF, alarm signal output. ON/OFF Pump Power Water level switch Fan Alarm Outdoor

  8. 6. Control • Control : Using Chigo wired controller (XCMV-03) • Set point can be fixed via standard wired controller. • The cooling load is determined by the air return temperature and set point on the wired controller. T2b T2 Ts AHU connection Kit T1 Room Wired controller

  9. 7. Two AHU kit connect to one AHU/IDUs Piping System AHU kit IDU/AHU ODU AHU kit Distributor Distributor

  10. Wiring Diagram Use a wire connect the AHU kit together (Customized) Connect CN7/CN8 to another CN7/CN8 Use one wired controller control two AHU kit AHU kit P QE P QE P QE ODU AHU kit IDU/AHU

  11. Sensor Connection AHU kit T1 T2 T2B IDU/AHU T1 T2 T2B AHU kit All the sensors must be attached to the corresponding position

  12. THANK YOU!

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