Sustainability in Air Conditioning

COPYRIGHT © 2013 MITSUBISHI ELECTRIC EUROPE B.V. ALL RIGHTS RESERVED.

We Support BIM

3D modelling– Autodesk Revit most popular software– We can provide most models – ask your account manager for

Revit files


We Support EDSL TAS

Energy Analysis– Full implementation in EDSL Tas building energy simulation

software– VRF, Splits, Heat Recovery Ventilation, Ecodan air to water


New City Multi YKM VRF

New Heating Only Split Systems

New M-Net Touch Screen Controller

New Simplified Controller

New MELCloud

Product Updates


City Multi YKM VRF System


City Multi VRFVRF market is always developing and pushing new boundaries

Mitsubishi Electric remain at the forefront

Introducing YKM, the highest efficiency air source VRF system, optimised for seasonal performance

EP (High CoP) Models ONLY

Y Series Size 200 – 900

R2 Size 200 - 700


City Multi VRF

The Complete Integrated Solution

Seasonal Efficiency

FlexibilityComfort & Control


Why Focus on Seasonal Efficiency

COOLING SEASON

HEATING SEASON

For the majority of the heating and cooling season the VRF system runs at part load


Seasonal Efficiency Legislative Drive


Achieving Comfort & ControlEnergy Saving Cooling Mode Refrigerant Temp Control Optimal control between capacity, efficiency & comfort

Outside 30°C

Target Evaporating Temperature 0°C

High Capacity

Comfortable Internal Condition

Outside 20°C

Target Evaporating Temperature 4°C

Required capacity

Mild off coil temperature

Improved efficiency

Comfortable Internal Condition

Decrease ambient temperature


Achieving High Seasonal EfficiencyNew YKM Optimised through VRF control

PURY-EP300 applied to BS-EN14825 standby power consumption methodology

kWh in standby mode per annum (est.)

Seasonal efficiency with standby inc.*

YKM 194kWh 6.45

YJM 243kWh 5.51

Saving 20%

* Average of SEER/SCOP


Heating Only Solutions

There are many reasons to use these energy efficient products to provide only heating to a building via the delivery method of air

- Many buildings do not need cooling, for example schools and student accommodation

- Heat pump air conditioning systems offer a simple, flexible and efficient method of delivering heat to a building

- Help with Part L Compliance by removing all power consumption related to cooling


Heating Only Option

3.5kW to 45kW

CUHZ-ZRP Product Reference

Same Spec/Price as Heating and Cool

Full Indoor Range Available

Must use PAR-31MAA controller to function

Heating Only Solutions


Controls Update


PAR-U01MEDU

- Replacement for the PAR-F27MEA- M-Net Controller- First Small Touch Screen Controller- Back Light- Built in PIR Occupancy Sensor- Screen Brightness Detector- Built in Temperature & Humidity

Sensor- Colour Indicator


PAC-YT52CRA

- Replacement for the PAC-SE51CRA

- Back Lit

- Additional Mode Button

- Additional Louvre Button

- Flush Fitting

- White Design

- In Stock


PAC-YT52CRAS

- Back Lit

- No Louvre Button

- Available Oct 2013

- UK Only

- Silver/Black Design


MELCloud

- Cloud Based Control

- PC, Tablet or Smartphone

- Apple, Android, Windows or Blackberry

- Remote Control

- Multiple Users


MELCloud

- Unit Control

- Reports

- Localised Weather Information

- Frost Protection

- 7 day Multi Programmable Timer and Holiday Mode


MELCloud

- Phase 1 – M Series and Mr Slim

- Phase 2 - Ecodan

- Phase 3 – City Multi VRF


MELCloud - MAC-557IF-E

The Mitsubishi Electric WiFi Interface is designed for communication to the Mitsubishi Electric MELCloud service


Thank you


Guide to

Long Term Building EfficiencyPresented by:

Rob Bowden


Energy efficient design

• Think beyond design and handover

• Part L 2010 – and beyond

• Tighter targets on carbon performance

• But there is a longer term challenge


Existing buildings, new targets

• Government aims to reduce UK carbon emissions by

80%

• Built environment a key part of this target

• Impossible to achieve with new-build alone

• 60% of 2050 commercial floor space was already

built in 2010


Long term energy performance

• Refurbishment and long-term efficient

operation are crucial

• Building owners and operators need to pay

close attention

• Benefits are reduced carbon emissions and

lower energy costs


Long term energy performance

How the figures add up:

• About 40% of a building’s operational costs are related to energy

• Around 80% of the total costs of a building occur during its operation

• Half of those are energy-related

• Only around 20% of costs during the design and construction phase


The good news

• The advantage is that users and owners have control over operational costs

• Energy is one of the most controllable overheads

• Several important areas of energy usage:

• Heating

• Hot water production

• Lighting

• Cooling and ventilation

• Auxiliary energy (eg for PCs and other

office equipment)


Step-by-step efficiency

Achieving long-term efficiency means examining all these areas:

1. First step – find out where energy is being used

2. Metering and sub-metering

3. Measure, monitor and then manage


Quick wins are possible

Three main opportunities to save energy:

1. Better control (turn down or switch off when necessary)

2. Good maintenance

3. Refurbishment or replacement


Quick wins are possible

Quick wins for early payback:

• Get control of your controls – avoid energy drift

• Meter and measure

• A walk-around check pays dividends in energy saving

• Sensors – working and correct positioning?

• Manual overrides – are they off?

• Check timers – are they set to match office hours?


Make the most of your control system

Understand the capabilities of your control system:

• More equipment supplied with advanced

built-in controls

• Air conditioning can be linked to lighting

• Seven-day time clocks included

• Make sure the FM team knows what can

be achieved


Maintaining savings

• Good maintenance will save money in the long-term

• Energy consumption of an air conditioning system can increase 60% without regular maintenance

• Cutting maintenance is a false economy

• Start with simple checks

• Comply with legal requirements on air conditioning system checks

• Reduce heating by a few degrees – but talk to

occupants first


Quick wins – low and no-cost ideas

• Set time clocks to match building use

• Limit set-points on air conditioning (21oC and 23

oC)

• Lock controllers

• Ensure lighting is off at night

• Get staff buy-in for energy saving measures –

this can greatly increase your success in reducing energy waste


Long-term energy management is a virtuous circle


New technologies

• Refurbishment and replacement –

next steps

• Once savings with existing equipment have

been optimised

• Replacing older technology may be a useful option to

consider


Energy-savings options

Heat recovery technology:

• Substantial savings

• Recovers ‘waste’ heating or cooling energy

• Applies it to incoming air

• Reduces the need for mechanical heating and cooling


Automatic waste reduction

Consider technologies that prevent waste automatically:

• Window controls that shut down air conditioning automatically

• Prevents running of heating/cooling with open windows

• Particularly useful in the hotel sector


New system, new energy savings

Replacing older air conditioning systems:

• Modern equipment is substantially more energy efficient

• Can see 45–50% energy savings against ten-year-old equipment

• Existing pipework and wiring may be used in some cases


Replacement

Other reasons for new air conditioning systems:

• New rules on use of R22 – phase out of

virgin refrigerant

• Complete ban on all HCFC by January 2015

• Price of R22 already rising as supplies of recycled R22 diminish


Replacement

Substantial savings can be made by replacement of old air conditioning:

• HSBC bank invested £16 million on new equipment at 800 branches

• Other technologies such as heat recovery and new controls

• Halved energy bills at branches

• Saved over £2 million a year on energy costs


Thinking of renewables?

• Heat pumps offer a useful solution for

commercial buildings

• Low carbon solutions

• Lower energy use on heating which accounts for

half of energy used

• 1kW of electrical energy input = 3.2kW heat produced

• Commercial solutions now available


Thank you

We now invite you to ask any questions.

Sustainability in Air Conditioning

Business

Transcript of Sustainability in Air Conditioning