Keele SU – Minimum Efficiency
Procurement Specification List
White Goods Appliances
All white goods appliances purchased within the Students’ Union from 2010 onwards must carry the European Union Energy Label or the European Ecolabel
Any washing machine purchased for use within the Students’ Union’s building should carry the European Ecolabel. Washing machines carrying this label must adhere to the following stringent criteria as denoted by the EU:
The washing machine
1. Must use equal or less than 01.7 kWh of electricity per kg of wash load for a 60C cotton cycle
2. Use equal or less than 12 litres of water per kg of wash load on a 60C cotton cycle
3. Achieve a spin extraction of less than 54% on a 60C cotton cycle
4. During the wash cycle the machine noise must be below 56 dB(A) and in the spinning cycle it must be below 76 dB(A)
5. The machine must bear clear volumetric or weight based markings on the detergent dispenser
6. Clear and full instructions must be included with the washing machine so that the correct setting can be chosen for the applicable wash load
7. A minimum of a 2 year guarantee must be offered with the certainty that parts for the washing machine will be available for a minimum of 12 years from purchase date.
8. Plastic parts that are heavier than 25 grams must contain flame retardant substances and be free from carcinogenic toxic and substances detrimental to aquatic organisms or environment.
9. The manufacturer must take back the machine or recycle at the end of its life cycle at no additional cost.
Printers purchased by Keele Students’ Union should be :
1. Capable of duplex printing
2. Are able to be networked
3. Have the ability to scan to email
4. Must have reasonably priced printer cartridges
5. Cost effective to purchase.
Colour printers are only chosen for specialised areas within departments.
Any refrigeration appliances purchased for use within the Students’ Union should carry an
EU Ecolabel rating.
The appliance must have an energy efficiency class of A, A+ or A++
And preferably have the following criteria:
- The refrigerants in the refrigerating circuit and foaming agents used for the insulation of the appliances shall have an ozone depletion potential equal to zero.
- The refrigerants in the refrigerating circuit and foaming agents used for the insulation of the appliance, shall have a global warming potential equal to, or lower than, 15
- A minimum of a two year guarantee must be offered with the certainty that parts for the refrigerator will be available for a minimum of 12 years from purchase date.
- The manufacturer must take back the refrigerator at or recycle at the end of its lifecycle at no additional cost.
- the type of refrigerant and foaming agent used for the insulation shall be indicated on the appliance, near to or on the rating plat, to facilitate possible future recovery.
- Clear and full instructions must be included with the refrigerator including details on where to site the unit and general best practices.
- Airborne noise from the appliance, counted as sound power, shall not exceed 40 dB(A)
- Packaging should be recyclable and where cardboard is used, at least 80% must have been recycled material.
Commercial refrigeration equipment commissioned by KUSU should adhere to the following specifications:
1. Ozone friendly refrigerant
2. Conform to central European temperature specification of 32 degrees centigrade
3. Does not contain ozone depleting insulation foam or similar.
4. Has an electronic temperature/defrost controller for precise operation and monitoring capability
5. Procured from a recognised British manufacturer
6. Thought to be given to post sale availability of after sales service and emergency breakdown cover
7. Designed to operate at required temperature for produce
8. Would an integral compressor motor increase local room temperature to an unacceptable level?
9. Would a remote compressor unit be needed?
What regular maintenance would be required and what would the cost be. Maintenance agreements should be set up with local bona fide businesses to minimise travel.
Electricity supply to commercial refrigeration equipment should be UK/EU specification 220-230V (415V three phase if required).
All lighting chosen and purchased throughout the Students’ Union from 2010 needs to utilise energy saving lamp technology with effective light fittings, control gear and suitable lighting control systems.
- To be primarily chosen on the basis of what they are going to be used for. And Energy Saving PL Lamps, LED technology T5 HE lamps and 2D lamps to be installed.
- Only High frequency ballast units to be used.
- Are chosen for their aesthetics and type of lamp required.
- Effective lighting ensures the light is directed to where it is required and obstructs it from areas where it is not, by using reflectors, refractors and/or diffusers.
- The optical elements of luminaries can absorb light, ensuring that not all of the light from a lamp will be used. Optical efficiency of luminaries has to be evaluated depending on its use. Advice on this will be sought for each installation from the University’s Estates & Buildings Department.
- Switches or dimmers can be a natural energy efficiency tool as these can be activated manually or automatically by timers, detectors and sensors and will be utilised within the Union wherever possible on refits as a user-friendly control system will enable lighting to react effectively to the use of the building, i.e. go on and off at specific intervals, e.g. occupancy detectors, photocell lighting controls, presence detection, day light linking and constant illumination.
On- Wall Instant Boiling Water Systems
- Twin chamber technology that separates incoming mains water from boiling tank so water temperature is not compromised.
- Steam heat boost feature which preheats mains water in the cistern prior to entry into boiling tank.
- Maintains water within 1 degree centigrade.
- Built in temperature control that automatically cuts off power supply in the event of temperature control failure, boil dry cut out or a blocked vent pipe
- Tontine insulation to minimise heat-loss.
Ventilation designed and installation to be in accordance with the ODPM Non-domestic building compliance guide 2010 Edition, section on “Air Distribution systems”. This gives the requirements for new and existing building in the specification of energy efficient requirements for compliance with the Building Regulations ADL2A:2010 Edition.
Fans Are specified to have a minimum “Specific Fan Power” (SFP)for energy efficiency
For example the standards are:-
System Type (SFP – Maximum Power consumed per litre of air per second)
Central Mechanical Supply & Extract (with Heating) = SFP; 1.6 Watts/litre/sec
Local supply and extract heat recovery system = SFP; 1.8 Watts/Litre/sec
Local supply or extract Fan = SFP; 0.4 Watts/Litre/sec