• 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

2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x RDS 11 Helios Transformer Controller With Motor Protection2 x DEF-140T Inlet Guard for the CBT-100N2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x TTC-2000 Three phase electric heater controller2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Vent Axia T-Series Controller1 x Transformer (silent) speed controller - RE 3.0 Amp1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x CONTROL ECOWATT - Basic1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB51 x ACO 149-ACO1/EDV1 x Transformer Speed Control - RTRE- 5.0Amp1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Transformer Speed Control - RTRE- 7.0Amp1 x EC-Vent Room Unit1 x CBM 9-9 550w 4P VR (Open Motor)1 x Transformer Speed Control - RTRE- 1.5Amp1 x Elta ACO Panel 149-ACO18B1 x Speed Controller - REB1-N1 x MTS10- extractor fan 3 step switch3 x Systemair Save Connect 2.0 Internet Module1 x EM30-24 Control Panel Commissioning Service1 x REE-2 Electronic Speed Controller1 x REB-CVF 0-10v Controller1 x QPTW 250C Acoustic Twin Fan with Controller1 x CBT-100N Centrifugal1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x RDH FLEX-SQUARE - ADH/RDH 04501 x Speed Controller - REB2.5-N1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x UB47- Universal Insulated Terminal3 x Remote controller FLEX - for VEKO INT2 x Transformer 5 Speed Controller - ATC1-10TK2 x Transformer 5 Speed Controller - ATC1-8TK1 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan2 x CS2 Current Switch2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x 7 Day Programmable TIMECLOCK2 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 22 25 Frequency Inverter1 x FU 15 40 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 0.75KW1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x NKS-D swirl diffuser v-300 x 300mm1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Frequency converter RUCK - FU 075 381 x FRQ5-10A Inverter Speed controller1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 10amps1 x Circular Ceiling Diffuser - TST 1251 x FU 22 04 Frequency Inverter1 x PCA Diffuser - PCA-3151 x FU 075 04 Frequency Inverter (IP20)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x Balance S Diffuser - NO RING - 125mm1 x Round ceiling diffuser 400mm1 x Curved Blade Grille 600x600 (2way blow)1 x JSR 200 Painted RAL50181 x Versio Square Ceiling Diffusers - RS142 x Electronic extractor fan speed controller - FSC 1.51 x Circular Ceiling Diffuser - TST 1601 x Balance S Diffuser - NO RING - 100mm1 x EC6H - Reversible Group Fan Electronic Controller1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 16amps1 x Elta 3 Amp Electronic single phase speed controller with TK2 x Elta 6 Amp Electronic single phase speed controller with TK1 x Elta 2 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 350mm1 x ELTA - Single Phase Transformer 8amps1 x Round ceiling diffuser 250mm1 x Elta 3 Amp Electronic single phase speed controller.1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 12amps1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)4 x COM-31 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x EFSC-6N- Single Phase Speed Control1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)2 x Remote Timer Control - 13512 x Vent Axia ACM 125 inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 10amps1 x Helios ZNE Electronic Fan Overrun Timer2 x Push Timer Switch - ZA41 x Time Delay Unit - DT20B2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW 1.5 Amp Transformer speed controller2 x Vent Axia ACM 200 inline mixed flow duct fan2 x MWS 3 – Transformer Controller With Motor Protection1 x ERR 20/1 Centrifugal inline fan1 x CBS-60 Outlet Flange for CSB/CBT-601 x Speed Controller - REB101 x EM30-24 Electro-Mechanical Control Panel2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Speed controller with Reverse - REB-1R2 x Temperature Fan Speed Controller - ATCP4-WMS1 x Transformer 5 Speed Controller - ATC1-2TK2 x Helios TSW 7.5 Amp Transformer speed controller1 x Transformer speed controller - ATC1 - 1.5 Amps1 x TEM 075 - 5 Speed Transformer Speed Control2 x TG-K Duct temperature sensor1 x Envirovent G4 Filter - SL-G4/F71 x ELM 18 EX Flexible Cuff for ERM 181 x Helios HQW-630/4 - IP551 x TG-K3/NTC10-01 - Duct temperature sensor1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-12TK3 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Helios TSW MCB Amp Transformer speed controller2 x Helios TSW 3 Amp Transformer speed controller1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT2 x Isolator Switch - ISOSW1 x WS - Reversing Switch from Helios Fans1 x BEAS-control module1 x Two Speed Switch - REGUL-21 x REE-1 Electronic Speed Controller1 x Helios HQW-200/2 - IP551 x RRB- transformer controller
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