Custom Electronics AOV Single Zone User Manual

AOV SINGLE ZONE CONTROL UNIT

Models AOV-001, AOV-003, AOV-005, AOV-007

http://www.aovcontrols.com

DOC- 140A

Installation Manual Index

1. Introduction

2. Supply

3. General operation

4. Specification

5. Preparation

6. Internal layout

7. Installing

8. Indicators – Lid Display

9. AOV Distribution PCB connections

10. Power Supply PSF-243 (3 Amp) or PSF-245 (5 Amp)

11. Power Supply PSF-249 (10 Amp)

12. Indicators AOV PCB

13. Actuator wiring

14. Detector wiring

15. Manual Call Point wiring

16. Firemans Switch wiring

17. Fire Alarm input wiring

18. Single zone schematic

19. Commissioning

20. Maintenance

1. Introduction

This control unit is for use with most Automatic Opening Vents and can
be used with other equipment that requires reverse voltage for closure. It
can be connected to most Fire Alarm systems operating on 24v dc. The
unit includes a 27.6V DC charger for use with Sealed Lead Acid Batteries
sized accordingly to up to 7Ah. The output load connected to the unit
should not exceed 1 Amp on AOV-001, 3 Amp on AOV-003, 5 Amp on
AOV-005 and 10A on AOV007 (excluding battery charging). .

2. Supply

Supply to the unit should be 240V ac 50Hz (+/-5%) and be fed via an
unswitched 5amp -fused spur outlet, fitted adjacent to the unit. The mains supply
in the enclosure should be wired into the fused terminal block provided. The unit
should be earthed.

3. General operation

With mains 240Vac connected the unit will charge batteries via the PSU
pcb (when fitted correctly) and will give an output of 24v DC +15%/-10%
when activated by Fire Alarm Control Panel or other control system.
When reset is effected at the Fire Panel the unit will reverse the polarity of
the output. Care must be taken that any equipment connected will not be
damaged by this operation.

Note: When reset is effected there will be timed reverse polarity output
irrespective of whether a trigger input from a Fire Panel or other device
is present or not.

SW1 provides a fire override feature to close the actuators, over riding any
trigger input.
This unit also has a fault-monitoring relay on the psu PCB. The relay is
energised when the unit is operating under normal (fault free) conditions
and gives a set of voltage free contacts at the ‘Fault Relay Output’. The
relay will operate in tandem with the main lid fault LED. These contacts
can be used to signal faults to a remote monitoring system or to control a
remote indicator or audible unit if required

4. Specification

Input Voltage 240v AC 50Hz (+5% / -5%)

Output Voltage 24v DC (+20% / -10%)

Output Rating AOV-001 : 1amp AOV-003 : 3amp

AOV-005 : 5amp AOV-007 : 10amp

Battery Charge Current AOV-001 : 0.25amp AOV-003 : 0.50amp

AOV-005 : 0.75amp AOV-007 : 2.0amp

Battery Type Sealed Lead Acid

Enclosure Colour Grey RAL 7035

Enclosure Size 400mmW x 300mmH x 110mmD

Weight 7kgs – 9kgs

Optional

items

Break Glass Call Point
Smoke Detectors
Temperature sensors
Chain and Linear Actuators.

5. Preparation

After unpacking, the unit should be prepared for installation.
The lid is fixed to the body with 4 bolts and after removing these bolts the lid can
be lifted from the unit. There are no interconnecting cables between the lid and
the back-box, however, when the lid is finally refitted the earth cable between the
body and lid should be fitted.
The lid and screws should be carefully stored for refitting on completion of the
installation.

6. Internal layout

7. Installing

The unit should be fitted in an upright position on a solid surface using the
fixing holes provided. The unit mounting location should be selected to allow

space around the unit to aid heat dissipation. It should not be mounted adjacent to
any other source of excessive heat. There are 5 mounting points available in the
enclosure with a top central keyhole to allow the unit to hang whilst marking the
other mounting points as required.
The back-box also has rear “dimples” to allow for imperfect wall levels as well
as to create space for air circulation.
Screws and anchor fixings should be sufficient to support the unit according to
the structure to which it is affixed.
Cabling of suitable rating should be used along with the appropriate termination
glands and securely fixed via the knockouts provided.

8. Indicators – Lid facia

Green = Mains Healthy Green = AOV opening
Amber = Fault Amber = AOV closing

When the Green light only is illuminated, the unit is
operating normally with supply to the load and the
batteries (when fitted) are receiving charge current.
When the Amber light is illuminated at the same time
as the Green light there is a fault on either or both of
the output supply and the charge supply. If the Green
light is NOT illuminated, the mains supply is not
present

.