• 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 Variable Speed Drive IP66 - 7.5KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FU 15 40 Frequency Inverter1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 075 52 Frequency Inverter (IP20)1 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter RUCK - FU 075 201 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 1.5KW1 x NKS-D swirl diffuser v-300 x 300mm1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 10amps1 x FRQ5-10A Inverter Speed controller1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Circular Ceiling Diffuser - TST 1251 x FU 075 04 Frequency Inverter (IP20)1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 2001 x ELTA - Single Phase Transformer 2amps1 x Balance S Diffuser - NO RING - 125mm1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50183 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 12amps1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x COM-31 x PCA Diffuser - PCA-2501 x Elta 6 Amp Electronic single phase speed controller.1 x EFSC-6N- Single Phase Speed Control3 x Remote Timer Control - 13511 x ELTA - Single Phase Transformer 10amps1 x Run On Timer - 5s - 4hrs - RT5A1 x Helios ZNE Electronic Fan Overrun Timer3 x Push Timer Switch - ZA43 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 x Curved Blade Grille 600x600 (2way blow)2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Circular Ceiling Diffuser - TST 1602 x EC6H - Reversible Group Fan Electronic Controller1 x Round ceiling diffuser 200mm1 x EFSC-3N- Single Phase Speed Control1 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 16amps2 x Elta 6 Amp Electronic single phase speed controller with TK1 x Round ceiling diffuser 300mm1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps2 x Vent Axia ACM 150 inline mixed flow duct fan1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Round ceiling diffuser 350mm2 x CS2 Current Switch2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Electronic extractor fan speed controller - FSC 1.52 x Vent Axia T-Series Controller2 x Transformer (silent) speed controller - RE 3.0 Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Elta Wall Cowl SWC56/634 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan4 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Remote controller FLEX - for VEKO INT2 x Transformer 5 Speed Controller - ATC1-10TK1 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-8TK2 x Transformer 5 Speed Controller - ATC1-12TK1 x Round ceiling diffuser 250mm2 x Vent Axia ACM 100 inline mixed flow duct fan2 x Vent Axia ACM 125 inline mixed flow duct fan3 x Isolator Switch - ISOSW2 x MWS 3 – Transformer Controller With Motor Protection1 x TTC-2000 Three phase electric heater controller2 x TG-K Duct temperature sensor2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x WS - Reversing Switch from Helios Fans2 x MWS 1.5 – Transformer Controller With Motor Protection3 x Transformer Speed Control - RTRE- 12.0Amp1 x BEAS-control module2 x Helios HQW-200/2 - IP551 x EM30-24 Electro-Mechanical Control Panel1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EC-Vent Room Unit1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Helios HQW-630/4 - IP552 x Helios TSW 7.5 Amp Transformer speed controller2 x Helios TSW 0.3Amp Compact Transformer speed controller3 x Helios TSW 3 Amp Transformer speed controller2 x Helios TSW MCB Amp Transformer speed controller2 x Helios TSW 1.5 Amp Transformer speed controller3 x Transformer speed controller - ATC1 - 1.5 Amps4 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Two Speed Switch - REGUL-21 x Envirovent G4 Filter - SL-G4/F71 x TG-K3/NTC10-01 - Duct temperature sensor1 x Helios HQW-200/4 - IP551 x Easy-fix termination kit - High Rise Ventilator - EFT2 x Speed Controller - REB52 x TG-R room temperature sensor1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Transformer (silent) speed controller - RE 5.0 Amp1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Helios HQW-315/4 - IP551 x CBM 9-9 550w 4P VR (Open Motor)1 x Transformer Speed Control - RTRE- 1.5Amp1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x MTS10- extractor fan 3 step switch1 x Speed Controller - REB1-N1 x DEF-CBM-RE-7 - Protection Guard1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-2TK1 x Temperature Fan Speed Controller - ATCP4-WMS1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Systemair Save Connect 2.0 Internet Module
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