• Model:ACOAS-ADS-VFC

ACOAS-ADS-VFC - Automatic Duty Share Changeover panel

£ 143.00 (excl. VAT)

£ 171.60 (inc. VAT)

The ACOAS changeover panels are designed to suit single phase twin fan units with airflow switches. Please note that an airflow switch must be fitted to monitor each fan and the airflow switches must not “see” the airflow from the other fan I.E. the 2 airflow switches cannot be in the same airstream.
The control panel fascia has a power lamp, fan fail lamp and a rocker switch. The VFC models have fail contacts that can be used in conjunction with a remote indicator or to interface with a building management system.

Installation:
Check that the auto changeover panel supplied is compatible with the fan motors. Install in a dry sheltered position. Do not install in close proximity to a heat source. Remove the front cover of the controller by unscrewing the fascia fixing screws. This provides access to mounting holes and electrical terminals. All wiring must be carried out by a suitably qualified and competent person and comply with current applicable regulations.

Auto Changeover:
The control panel will automatically changeover from the duty fan to the standby fan if the fuse (within the auto changeover panel) for the duty fan ruptures.
Manual duty share models:
Manual duty share models are fitted with a 2-position (Fan A/Fan B) rocker switch enabling the user to manually select the duty fan. The control panel will auto changeover from the duty fan to the standby fan as described in Auto Changeover above.
Auto duty Share models:
Auto duty share models are fitted with an electronic timer to provide a 12 hour cycle time for each fan.The timer has a jumper link to allow testing of the auto changeover on a 1 minute test cycle for each fan. After testing the jumper link should be fitted back in the 12hr cycle time position. The position of the jumper link for the test cycle and 12 hour cycle are shown below.
Volt free contacts (VFC models)

These models are suffixed with VFC and feature 2 sets of volt free contacts, 1 set for a common fan run status and 1 set for a common fan fail status. The contacts are normally open and close when either fan is running or has failed.
PDF Files


Data Sheet

1 x UB47- Universal Insulated Terminal1 x SPI-150 C Iris damper1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 40 Frequency Inverter1 x FRQ-10A V2 Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 075 52 Frequency Inverter (IP20)1 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FRQ5-10A Inverter Speed controller1 x Elta 10 Amp Electronic single phase speed controller.1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x FU 22 04 Frequency Inverter1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 3amps1 x ELTA - Three Phase Transformer 10amps1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x NKS-D swirl diffuser v-300 x 300mm1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x ELTA - Single Phase Transformer 2amps1 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1001 x Electronic extractor fan speed controller - FSC 1.51 x Curved Blade Grille 600x600 (2way blow)1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x EC6H - Reversible Group Fan Electronic Controller1 x Circular Ceiling Diffuser - TST 1601 x Balance S Diffuser - NO RING - 100mm1 x Elta 2 Amp Electronic single phase speed controller.1 x 5-Speed Controller for use with Elta SAX Classic Fans3 x Elta 6 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Round ceiling diffuser 200mm1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps1 x Round ceiling diffuser 300mm1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 4amps1 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 250mm1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 350mm1 x Elta 6 Amp Electronic single phase speed controller.1 x EFSC-6N- Single Phase Speed Control1 x PCA Diffuser - PCA-2501 x ELTA - Single Phase Transformer 10amps1 x Remote Timer Control - 13512 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp2 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan4 x Vent Axia ACM 125 inline mixed flow duct fan2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW 7.5 Amp Transformer speed controller2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Remote controller FLEX - for VEKO INT3 x Three Phase Transformer controllers - RMT 1.5 Amp4 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Transformer 5 Speed Controller - ATC1-10TK1 x Transformer 5 Speed Controller - ATC1-4TK2 x Helios TSW 3 Amp Transformer speed controller2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Vent Axia ACM 100 inline mixed flow duct fan2 x CS2 Current Switch1 x MWS 3 – Transformer Controller With Motor Protection2 x COM-31 x Isolator Switch - ISOSW1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x CONTROL ECOWATT - Basic2 x Temperature Fan Speed Controller - ATCP4-WMS2 x Systemair Save Connect 2.0 Internet Module2 x TG-K Duct temperature sensor1 x EM30-24 Electro-Mechanical Control Panel3 x Transformer 5 Speed Controller - ATC1-12TK1 x DEF-140T Inlet Guard for the CBT-100N3 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x ACO 149-ACO1/EDV1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x MWS 1.5 – Transformer Controller With Motor Protection1 x BEAS-control module1 x WS - Reversing Switch from Helios Fans1 x EC-Vent Room Unit
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