May 08 News
July 06 News
The summers here and the increasing temperatures cause us all to get a little hot under the collar. So its more important than ever that the air conditioning systems we all rely on, keep us cool, operate correctly and operate safely at all times.
The introduction of the chlorine free R410A refrigerant, with its higher operating pressures, has increased the need for an improved standard of installation and servicing of refrigerant and air conditioning plant.
As with the phase out of CFCs, this will involve new practices and regulations which enforce refrigerant recovery, reclaim and recycling, to encourage a better attitude towards minimising refrigerant leakage. The industry is being forced to sit up and take notice of safe working practices and the tools required to do the job correctly.
When the refrigerant was introduced it was acknowledged that the new manifold gauges would be needed to provide readings for higher pressures.
In addition to this, the industry has been advised to check existing tools for suitability-including flaring equipment, reclaim units and charging hoses.
What was not expected was that all flare nuts used in R410A applications have to be tightened to a specific Torque, in order to further prevent leakage from the system. Research into this subject has shown that most leaks are actually caused by over-tightening of flared joints.
Manufacturers now emphasise the need for torque settings owing to higher working pressures, and state the correct torque settings in their installation manuals and training courses.
In response to the above, MHH Engineering have produced the complete Torque Kit, for Air conditioning Engineers and Installation engineers to meet the requirements of BS:EN378. The kit includes spanner sizes between 17mm to 36mm at torque values between 16Nm up to 100Nm.
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Further details of this product can be obtained from MHH Engineering sales on: 01483 892772 or email: sales@torqueleader.co.uk. Additional Torqueleader products can be found on this website.
