• 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 Elta SCP450/4-1AC - IP551 x Elta Standard Ambient Flexible Connector - 315mm2 x Elta 10 Amp Electronic single phase speed controller.1 x NKS-D swirl diffuser v-300 x 300mm1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x Balance S Diffuser - NO RING - 125mm1 x ELTA - Single Phase Transformer 2amps1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 1604 x Electronic extractor fan speed controller - FSC 1.51 x Balance S Diffuser - NO RING - 100mm1 x EC6H - Reversible Group Fan Electronic Controller1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Elta 2 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control1 x Round ceiling diffuser 200mm1 x Elta 3 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 300mm2 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x Round ceiling diffuser 250mm1 x ELTA - Single Phase Transformer 8amps1 x Round ceiling diffuser 350mm2 x Airvent ceiling fan controller1 x AIRVENT speed control - AIR4019611 x Elta 6 Amp Electronic single phase speed controller.3 x COM-31 x PCA Diffuser - PCA-2501 x EFSC-6N- Single Phase Speed Control2 x Remote Timer Control - 13511 x ELTA - Single Phase Transformer 10amps1 x Run On Timer - 5s - 4hrs - RT5A1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Helios ZNE Electronic Fan Overrun Timer3 x Push Timer Switch - ZA42 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B2 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x MWS 101 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller3 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan2 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan3 x Transformer 5 Speed Controller - ATC1-12TK3 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 1.5 Amp Transformer speed controller1 x RDS 11 Helios Transformer Controller With Motor Protection1 x DEF-140T Inlet Guard for the CBT-100N2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp4 x Systemair Save Connect 2.0 Internet Module1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x Isolator Switch - ISOSW1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-43 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-10TK3 x Helios TSW 3 Amp Transformer speed controller2 x CS2 Current Switch2 x MWS 3 – Transformer Controller With Motor Protection3 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Elta 6 Amp Electronic single phase speed controller with TK4 x MWS 1.5 – Transformer Controller With Motor Protection1 x ERR 31/1 Centrifugal inline fan1 x Transformer Speed Control - RTRE- 12.0Amp2 x Transformer 5 Speed Controller - ATC1-8TK1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans3 x Vent Axia ACM 125 inline mixed flow duct fan2 x TG-K Duct temperature sensor2 x Vent Axia T-Series Controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp2 x BEAS-control module2 x Transformer (silent) speed controller - RE 3.0 Amp2 x Envirovent G4 Filter - SL-G4/F71 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x REE-1 Electronic Speed Controller1 x Transformer 5 Speed Controller - ATC1-2TK2 x Helios TSW 0.3Amp Compact Transformer speed controller1 x CBS-60 Outlet Flange for CSB/CBT-601 x ACO 149-ACO1/EDV1 x TG-K3/NTC10-01 - Duct temperature sensor1 x EM30-24 Electro-Mechanical Control Panel1 x CONTROL ECOWATT - Basic1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x FAST-TRACK RANGE 90mm - Click Ring (1 bag of 10)1 x Speed Controller - REB31 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer (silent) speed controller - RE 1.5 Amp1 x CBA-60 Inlet Flange for CBT-601 x EC-Vent Room Unit1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted3 x WS - Reversing Switch from Helios Fans1 x Transformer Speed Control - RTRE- 7.0Amp1 x Skyflow SSR Horizontal Roof Cowl SSR80B1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Transformer Speed Control - RTRE- 1.5Amp1 x Helios HQW-315/4 - IP551 x Elta ACO Panel 149-ACO18B1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x TG-R room temperature sensor1 x Transformer speed controller - ATC1 - 1.5 Amps1 x Vent Axia SC5001 - Speed controller1 x CBM 9-9 550w 4P VR (Open Motor)1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x ELM 25 EX Flexible Cuff for ERM 251 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Speed Controller - REB101 x Speed Controller - REB51 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x DEF-CBM-RE-7 - Protection Guard1 x RDS 7 Helios Transformer Controller With Motor Protection1 x EM30-24 Control Panel Commissioning Service1 x Two Speed Switch - REGUL-22 x Helios TSW 10 Amp Transformer speed controller1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Helios HQW-200/4 - IP551 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Helios HQW-200/2 - IP551 x Easy-fix termination kit - High Rise Ventilator - EFT1 x DDMP 09-09 3F 2130W M6A4 DG01 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
£ 11.49

Look good, works well, except the shaft of the lanellae cuts...