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Introduction

Thank you for purchasing a KOER product. KOER is a brand dedicated to the development and production of the next generation of hardware and software solutions for HVAC management and building automation systems. Our vision is to continuously develop and produce quality products for the building automation industry which will have a positive impact on user environments, quality of life and, health and safety. With this in mind, we value any insights or feedback you may have regarding our products. (Email: info@koer.com)

Before use or installation:

It is strongly recommended that installation is performed by a qualified professional and that this user manual is read carefully prior to installation. Incorrect installation may result in malfunction, damaging the device or incorrect configuration.

  1. QCBA is an electronic device which dramatically reduces wiring and installation time of VAVs and the C35 room controller.
    • QCBA is an electronic device which dramatically reduces wiring and installation time of VAVs and the C35 room controller.

    • It supplies 24 V AC power for up to 2 VAV actuators, 1 C35 room controller and 1 PIR sensor.

    • It enables the installer to connect the VAV actuators, C35 and PIR sensor together using standard straight CAT5 Ethernet cables instead of screw type terminal blocks.

    • C35 controls VAV actuators using the analog 0-10 V signal.

    • The AO1 and AI1 markings on the device casing identify the connectors over which this analog communication is taking place.

  2. There are two posibilities for mounting the QCBA: DIN rail mounting: While holding the DIN rail clip open with a screw driver, attach it to the rail. When the QCBA is in place, release the clip.
    • There are two posibilities for mounting the QCBA:

    • DIN rail mounting: While holding the DIN rail clip open with a screw driver, attach it to the rail. When the QCBA is in place, release the clip.

    • Mounting to a surface: Please use four included screws to mount the QCBA directly to the surface. The diameter of the holes is 4 mm.

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  4. Please follow the next couple of steps to ensure correct functionality of QCBA (Figure 6.1.)
    • Please follow the next couple of steps to ensure correct functionality of QCBA (Figure 6.1.)

    • WARNING! Disconnect the power supply prior commencing installation or any wiring!

    • Use a standard ethernet (CAT5 straight) cable to connect C35 VAV room controller.

    • Be sure to order C35 wall mount with the RJ45 connector instead of the terminal block connector version.

    • Use a standard ethernet (CAT5 straight) cable to connect the supply VAV actuator with the feedback signal.

    • Currently supported analog VAV actuator is Belimo LMV-D3-MP.

    • One QCBA (QCBA-P23D0) can power a maximum of 2 VAV actuators (Figure 6.2).

    • Be sure to order the VAV with the RJ45 connector, or use the terminal block to RJ45 adapter – QCAA (sold separately).

    • Use a standard ethernet (CAT5 straight) cable to connect the exhaust VAV actuator.

    • Be sure to order the VAV with the RJ45 connector, or use the terminal block to RJ45 adapter - QCAA (sold separately).

    • Use a standard ethernet (CAT5 straight) cable to connect the presence sensor.

    • The QCBA (QCBA-P23D0) provides 24V AC supply for the PIR sensor.

    • Only the contactless PIR sensor is supported.

    • Be sure to use the terminal block to RJ45 adapter - QCAA (sold separately).

  5. Use a QCBA power cable or screw type terminal blocks to forward the power to the next QCBA.
    • Use a QCBA power cable or screw type terminal blocks to forward the power to the next QCBA.

    • Do not connect more than 32 QCBA devices in series on the same power supply rail (Figure 6.2).

  6. Use a QCBA power cable or screw type terminal blocks to power the QCBA.
    • Use a QCBA power cable or screw type terminal blocks to power the QCBA.

    • WARNING! Use only 230 V AC power and a 2.5 A fuse!

  7. Instead of C35 VAV you can alternately connect C-SENS device. Use the same procedure as in Step 5:
    • Instead of C35 VAV you can alternately connect C-SENS device. Use the same procedure as in Step 5:

    • WARNING! Disconnect the power supply prior commencing installation or any wiring!

    • Use a standard ethernet (CAT5 straight) cable to connect C-SENS sensor.

    • Be sure to order C-SENS wall mount with the RJ45 connector instead of the terminal block connector version.

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  10. QCAA Quick-Connect Adapter Analog is used to connect wires from VAV actuator with RJ45 connector QCAA Quick-Connect Adapter Analog is used to connect wires from VAV actuator with RJ45 connector
    • QCAA Quick-Connect Adapter Analog is used to connect wires from VAV actuator with RJ45 connector

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Member since: 01/17/2017

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