V6 Saftee Series Control System

V 5 "SAFE-TEE" CONTROL SYSTEM

The Conditionaire "Safe-Tee" V5 control system is a basic system which complies fully with AS/NZ 2243.8, AS/NZS 2430.3.6 and AS/NZS 3000. The V5 performs and exceeds all the functions specified in these standards.

The V5 is used where a constant volume system is required and does not have the "IVAC" capability.

Over and above the requirements of the Standards the V5 has the following features:

LCD display indicating all functions and alarms.
Can support dual displays for double sided units.
Can support multiple emergency isolators.
Lighting can be automatic or independently operated.
Compatible with basic BMS.

Auto restart to operational mode after resumption of interrupted power supply. GPOs and flammable gases still have to be reset manually.
Boost function for increased exhaust rate.
Post purge timer adjustable for schools applications.
Fire alarm status, when required.

V6 Saftee Series Control System

V 6 "SAFE-TEE" CONTROL SYSTEM

The Conditionaire "Safe-Tee" V6 control system is a superior state of the art system which complies fully with AS/NZ 2243.8, AS/NZS 2430.3.6 and AS/NZS 3000. The V6 performs and exceeds all the functions specified in these standards.

The V6 must be used where the "IVAC" infinitely variable airflow control system is required.

Over and above the requirements of the Standards the V6 has the following features and options:

Touch screen display indicating all functions and alarms.
Date and time displayed on screen.
Stop watch and count down timer function.
Supports dual displays and multiple emergency stops.
Graphs airflow V’s sash position.
"IVAC" infinitely variable airflow function.
Communication between fume cupboards.
High temperature/fire alarm.

Scrubber pump and low water alarm, if fitted.
Automatic operation of baffle wash system, if fitted.
Spare relays for special monitoring.
BMS and RS485 – BAC net compatible.
Auto restart to operational made after resumption of interrupted power supply. GPO’s and flammable gases still have to be reset manually.
Boost function increases fan to maximum speed.
Lighting can be automatically or manually operated.

“IVAC” INFINITELY VARIABLE AIR CONTROL SYSTEM

The fume cupboard(s) shall be fitted with the energy saving, infinitely variable air control, “IVAC” system as supplied by Conditionaire International Pty Limited.

The system must infinitely vary the speed of the fan to maintain a constant velocity through the face opening of the fume cupboard, irrespective of sash position. The system must be capable of comparing velocity with fan speed and therefore indicate an airflow fault at any sash position if the face velocity falls below that required by AS2243.8. The minimum sash opening shall be 100mm.

A boost facility shall be incorporated on the control touch panel which, when activated, will override the “IVAC” system and increase the fan to maximum extraction rate. A flashing signal will show that the boost facility has been activated and the boost will automatically revert to “IVAC” control after a period of ten minutes or it may be manually reset at any time.

The energy and cost saving Conditionaire “IVAC” system complies with AS2243.8-2006 and AS2430.3-1991. The system was developed to dramatically reduce the quantity of conditioned air exhausted through fume cupboards.

The savings are achieved by infinitely varying the exhaust fan speed in relation to the sash position. An electronic circuit compares the face opening of the fume cupboard to the velocity in the duct, therefore reducing the air quantity, whilst maintaining a constant face velocity.

The table below shows the quantities or air exhausted and achievable savings using “IVAC.” The air quantities are in litres and based on a Conditionaire 2015 operating for an eight (8) hour day.

SASH POSITION	WITHOUT “IVAC”	“IVAC” FITTED	DAILY SAVINGS
650mm (MAX) 325mm 100mm (MIN)	13,384,800 L 13,384,800 L 13,384,800 L	13,384,800 L 6,692,400 L 2,574,720 L	6,692,400 L 10,810,080 L

USER BENEFITS

Can reduce, by up to 81%, the quantity of conditioned air exhausted depending on the sash position.
Reduces load on air conditioning system and thus the cost of running and maintenance
Eliminates the use of belt drive fans and associated maintenance
“IVAC” is fully integrated with the Conditionaire “SAFE-TEE” controller.
Fitted with a “boost” facility to override the “IVAC” at any time
Lower air quantities result in lower noise levels at fume cupboard
Can be fitted to existing fume cupboard installations.

AIR QUANTITY EXHAUSTED VS SASH POSITION

IVAC Graph

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