• 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

3 x Elta 3 Amp Electronic single phase speed controller with TK1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF450/4-1AC - Single Phase2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x WS - Reversing Switch from Helios Fans1 x EM30-24 Electro-Mechanical Control Panel1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Speed Controller - REB31 x Elta ACO Panel 149-ACO18B1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6302 x Electronic extractor fan speed controller - FSC 1.51 x EC-Vent Room Unit1 x EM30-24 Control Panel Commissioning Service1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x GRA-100 External Grill by S&P1 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC35/402 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 075 52 Frequency Inverter (IP20)1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x FU 15 16 Frequency Inverter1 x FRQ5-10A Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 1.5KW2 x Remote controller FLEX - for VEKO INT1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x ELTA - Three Phase Transformer 10amps1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x FU 22 04 Frequency Inverter1 x Elta 10 Amp Electronic single phase speed controller.1 x Frequency converter RUCK - FU 075 212 x FU 075 04 Frequency Inverter (IP20)1 x ELTA - Single Phase Transformer 2amps1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1251 x EC6H - Reversible Group Fan Electronic Controller2 x Helios TSW 7.5 Amp Transformer speed controller1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1001 x Elta 2 Amp Electronic single phase speed controller.1 x Curved Blade Grille 600x600 (2way blow)1 x Airvent ceiling fan controller1 x Circular Ceiling Diffuser - TST 2001 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller with TK1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x ELTA - Single Phase Transformer 12amps1 x Versio Square Ceiling Diffusers - RS141 x Circular Ceiling Diffuser - TST 1602 x COM-31 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Round ceiling diffuser 200mm1 x Balance S Diffuser - NO RING - 100mm1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x EFSC-6N- Single Phase Speed Control1 x Round ceiling diffuser 300mm1 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 250mm1 x ELTA - Single Phase Transformer 10amps1 x Round ceiling diffuser 350mm3 x Vent Axia ACM 100 inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x Vent Axia ACM 125 inline mixed flow duct fan1 x Run On Timer - 5s - 4hrs - RT5A2 x Push Timer Switch - ZA41 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Transformer 5 Speed Controller - ATC1-2TK1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Systemair Save Connect 2.0 Internet Module2 x TG-K Duct temperature sensor1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x ACO 149-ACO1/EDV1 x CBS-60 Outlet Flange for CSB/CBT-601 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB51 x RDH FLEX-SQUARE - ADH/RDH 04501 x DEF-140T Inlet Guard for the CBT-100N1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Speed Controller - REB101 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x REB-CVF 0-10v Controller1 x Transformer Speed Control - RTRE- 7.0Amp1 x PIR Sensor - PIR21 x Frequency converter RUCK - FU 075 382 x Transformer 5 Speed Controller - ATC1-4TK1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x MWS 3 – Transformer Controller With Motor Protection1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Three Phase 3 step - 10amp Transformer controller for use with the HV Wall Mounted fans.1 x Helios TSW 3 Amp Transformer speed controller1 x RDS 11 Helios Transformer Controller With Motor Protection1 x Helios TSW 1.5 Amp Transformer speed controller1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Transformer 5 Speed Controller - ATC1-12TK1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x CS2 Current Switch1 x Isolator Switch - ISOSW1 x Vent Axia ACM 200 inline mixed flow duct fan1 x MV-B Dual Switch for use with Helios HQW plate fans,2 x Transformer speed controller - ATC1 - 1.5 Amps
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40

I have a loft mount extractor fan which was very noisy. I ...