• Model:ACOAS-ADS-VFC

ACOAS-ADS-VFC - Automatic Duty Share Changeover panel

£ 143.00 (excl. VAT)

£ 171.60 (inc. VAT)

ACOAS-ADS-VFC - Automatic Duty Share Changeover panel 1
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

Shop by price
Shopping Cart
2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Circular Ceiling Diffuser - TST 1251 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x Round ceiling diffuser 400mm1 x Balance S Diffuser - NO RING - 125mm1 x Curved Blade Grille 600x600 (2way blow)1 x JSR 200 Painted RAL50181 x Circular Ceiling Diffuser - TST 1601 x Versio Square Ceiling Diffusers - RS141 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 350mm1 x PCA Diffuser - PCA-2501 x FU 075 52 Frequency Inverter (IP20)1 x Helios VDS-7 Three Phase Transformer 5-Step1 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 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 10 Amp Electronic single phase speed controller.1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 3amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FRQ5-10A Inverter Speed controller1 x ELTA - Three Phase Transformer 10amps1 x Frequency converter RUCK - FU 075 211 x FU 075 04 Frequency Inverter (IP20)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x PCA Diffuser - PCA-3151 x ELTA - Single Phase Transformer 2amps3 x Electronic extractor fan speed controller - FSC 1.51 x EC6H - Reversible Group Fan Electronic Controller2 x Elta 6 Amp Electronic single phase speed controller with TK1 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.1 x Airvent ceiling fan controller1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)2 x Three Phase Transformer controllers - RMT 1.5 Amp3 x COM-31 x EFSC-6N- Single Phase Speed Control1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 10amps2 x Vent Axia ACM 100 inline mixed flow duct fan2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x MWS 1.5 – Transformer Controller With Motor Protection1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 16amps1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 6 Amp Electronic single phase speed controller.1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Helios TSD 5.5 Transformer Speed Control (400v)2 x Transformer 5 Speed Controller - ATC1-8TK1 x Transformer 5 Speed Controller - ATC1-4TK1 x Multi Input Run On Timer - 0 - 20min - CFCU2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 40 Frequency Inverter1 x FU 22 04 Frequency Inverter2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Push Timer Switch - ZA41 x Vent Axia ACM 150 inline mixed flow duct fan2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp3 x Vent Axia ACM 125 inline mixed flow duct fan2 x Vent Axia T-Series Controller1 x Remote Timer Control - 13511 x Temperature Fan Speed Controller - ATCP4-WMS2 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-10TK1 x Helios TSW MCB Amp Transformer speed controller1 x MWS 3 – Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x WS - Reversing Switch from Helios Fans1 x Transformer Speed Control - RTRE- 12.0Amp1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Helios HQW-200/2 - IP551 x CBS-60 Outlet Flange for CSB/CBT-601 x Transformer 5 Speed Controller - ATC1-2TK1 x Transformer 5 Speed Controller - ATC1-12TK1 x Helios TSW 3 Amp Transformer speed controller1 x DEF-140T Inlet Guard for the CBT-100N2 x CS2 Current Switch1 x Envirovent G4 Filter - SL-G4/F71 x BEAS-control module
£ 35,548.70
Best sellers
MTS10- extractor fan 3 step switch Two Speed Switch - REGUL-2 Commercial Single or 3 phase Fan Reversing Switch - RS1 DOL Starter - Three phase OZEO E ECOWATT Wireless Switch - OZEO-ECO-W Control with reverse - CR300 MEV Spider Wireless boost Switch - MEV-SWH-W DOL Starter - Single phase
Specials
HRB/6-451/20-BMVPN - Special Offer
HRB/6-451/20-BMVPN - Special Offer
£ 290.85 now £ 119.99
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 ...