air conditioning inspection · pdf fileall air-conditioning systems with an effective rated...

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Equipment Owner’s Organisation Aristan Building

Responsible Site Contact Nick

Equipment Owner’s Address Industrial & Financial Systems I F S UK Ltd, Artisan, HillbottomRoad, Sands Industrial Estate, HIGH WYCOMBE, HP12 4HJ

UPRN 165346680000 RRN

Date of inspection 29/06/2010 Date of lodgement 29/06/2010

Assessor name andassessor ID

Behdad yazdani Address ofAssessor’s employer

Future BY Energy

Name and IDnumber of Scheme

Behdad Yazdani

Related PartyDisclosure

AssessmentSoftware Used

4

Executive SummaryThe building is approximately 100,000 sq ft in gross internal area with a total of approximately 88,000 sq ft ofoffices consisting of four floors on a site of over 7 acres providing in excess of 320 parking spaces.The original part of the building was completed in the late 1960s and the new section in 2001 at which timeall the finishes and the majority of the mechanical and electrical services were replaced. The remaining coreservices such as the boiler room and mains transformers and electrical switchboards were replaced in 2006.

Building owners and managers who operate air-conditioning systems have statutory obligations under theEnergy Performance of Buildings Directive (EPBD) to ensure that air conditioning inspections are conductedby qualified and accredited air-conditioning inspectors.All air-conditioning systems with an effective rated output of more than 12kw must be regularly inspected byan energy assessor. If the system has an effective rated output of 12kW or more, the first inspection must bedone by 4 January 2011.The survey and sampling had been carried out based on TM 44 (Inspection of air conditioning systems)Based on TM44 : The air conditioning system includes large numbers of similar fan coil units and becauseno evidence can be provided that these have been adequately cleaned and maintained, then the inspectorexamine a small . The sample is one in fifty in installations the number examined is sufficient to obtain an indication of the state of maintenance of the units. The building is heated and comfort cooled by a combination of four pipe and two pipe fan coil units togetherwith panel radiators which are individually thermostatically controlled, where appropriate. Tempered fresh airis supplied via a central air handling unit located in the roof Plant Room. Air is extracted mechanically via acentral air handling unit in the Plant Room.

Refrigeration and AC Systems:Design parametersExternal conditions:Winter - -4 C dry bulb/-4C wet bulb Summer — 28 C dry bulb/19 C wet bulbInternal conditions:Winter office area 20 C +/-1 Summer office area 25 C/+/-1 Heat load 120 watts sq m

Air Conditioning System Inspection Report

RRN: Inspection Date: 29/06/2010 of 3

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General system description: The office areas are air conditioned using a condensate wet fan coil unitsystem. The fan coil units arelocated within the ceiling voids of the office areas. Fan unitshave waterside control.

Chilled and Heating Water:Pipework and supply air ductwork distribute horizontally from the common service riser within the ceiling voidto serve the fan coil units. At each floor level condensate is drained to a foul drain. Fan coil units areindividually controlled by a Honeywell Zone Manager system. The ceiling void is utilised as a plenumfor return air to the fan coil units.Building Management System (B.M.S):The boiler pumps chillers and fans are controlled by Trend 1Q241/242, controllers located in 4 control panelslocated as follows:1.Room top Plant Room2.Ground Floor Secondary Plant Room3.Main Plant Room Boiler Panel4.Main Plant Room Chiller PanelAll panels are linked and the boiler panel has a smart display unit. The ceiling mounted fan coil units arecontrolled by Honeywell Controllers on each floor which are linked and monitored from a panel in the Plant Room. Each unit has itsown localised control.No evidence of maintenace is available as they have a new contract and no documents available from oldmaintenance company.

System components inspectedThe following components of the system were inspected:

System DocumentationRefrigeration PlantHeat Rejection EquipmentAirborne Cooling and Air Conditioning SystemsAirborne Systems in Air Handling Units and DuctsOutdoor Air InletsSystem Controls

Key RecommendationsSystem efficiency, capacity and cooling loads

Consider introducing variable speed drives (VSD) for fans, pumps and compressors. Consider with expertsimplementation of an energy efficient equipment procurement regime that will upgrade existing equipmentand renew in a planned cost-effective programme. Ensure building occupants understand when the variouscooling modes of the mixed mode venthation system are in operation to avoid windows being opened whenmechanical cooling is on.



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Improvement options

Engage experts to review overall ventilation strategy and propose an investment programme for upgradingand/or switching to alternative solutions to [m prove effectiveness and energy efficiency. Engage experts topropose and set up an air conditioning servicing and maintenance regime and implement it, Review the airconditioning energy performance report and seek to implement any outstanding recommendations for action.Engage experts to review the HVAC control systems settings and propose alterations and/or upgrades andadjust to suit current occupancy patterns. Consider with chefs and kitchen managers implementing a trainingprogramme and monitoring systems with incentives. Consider with chefs and kitchen managersimplementing an energy efficiency plan including maintenance and servicing provisions and operationaltargets, monitoring and incentives. Engage experts to propose and set up an air conditioning servicing andmaintenance regime and implement it

Alternative solutions

Consider installing building mounted photovoltaic electricity generating panels. Consider installing buildingmounted wind turbine(s). Consider installing automated controls and monitoring systems to electricalquipment and portable appliances to minimise electricity waste. Consider installing high speed shutter doorsto loading bays. Consider installing heat recovery to catering refrigeration condensers in order to aid withHWS generation or to heat room air. Engage experts to review overall air conditioning strategy and proposean investment programme for upgrading and/or switching to alternative solutions. Consider a programme offitting energy meters to lifts and escalators as part of the service and maintenance regime Enable powersave settings and power down management on computers and associated equipment Consider engagingwith building users to economise equipment energy consumption with targets, guidance on theirachievement and incentives.

Other recommendations

Consider applying reflective coating to windows and/or fit shading devices to reduce unwanted solar gain.Ensure building occupants understand when the various cooling modes of the mixed mode ventilationsystem are in operation to avoid windows being opened when mechanical cooling is on. Consider to installrun around coil between Main Extract system and fresh supply for the restaurant area. Consider installingExternal shading in the existing building to reduce heat gain. Provide a short guidance for thermostats andplace it next to the thermostat. Replace R-22 refrigerant with new refrigerant(the chiller is in a very goodcondition and no need to replace the whole system. Replace traditional spot lights with LED spot lights.Consider installing occupant sensor for main corridors in first and second floor.



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Pre Site visit work items:

Equipment OwnerOrganisation Name Aristan Building

Equipment Owner/Manager Name Nick Telephone

Street Address

Industrial & Financial Systems I F S UK Ltd

Artisan, Hillbottom Road, Sands Industrial Estate

City HIGH WYCOMBE Postcode HP12 4HJ

Equipment Operator (if different from owner)Organisation Name Skillbond

Responsible Site Contact Andy Sherman Telephone 01491413071

Street Address The old Forge, Fawley Green, Henley on Thames

City Oxon Postcode RG9 6JA

Accredited inspector detailsInspector Name Behdad yazdani

Inspector Number Accreditation Scheme Behdad Yazdani

Trading Name Future BY Energy

Trading Address 139 St Elmo Rd, Shepherds Bush, W12 9DY

Insurance DetailsInsurance Company Brit Insurance Policy Number BRT-3

Start Date 15/10/2009 Expiry Date 14/10/2010 PI Limit (£) 100000

Inspection DetailsUPRN 165346680000 RRN

Date of inspection 29/06/2010 Date of lodgement

Effective rated output ofthe all air-conditioning inthe building?

632

Centralised Cooling System Inspection Checklist

RRN: Inspection Date: 29/06/2010 Page 1 of 28

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TNote: Request following information from client and complete the following checklist. The inspector shouldexamine the relevant documentation and systems as far as possible to check that the installed equipment isas described. If the documentation is not available, then an additional part of this procedure is to locate theequipment and assemble a minimum portfolio of relevant documentation.

Record Checklist Pre Inspection InformationLevel Information Required Reviewed Not

Available

Essential Itemised list of installed air conditioning and refrigeration plantincluding product makes, models and identification numbers. X

Cooling capacities, with locations of the indoor and outdoorcomponents of each plant. X

Description of system control zones, with schematic drawings. X

Description of method of control of temperature. X

Description of method of control of periods of operation. X

Floor plans and schematics of air conditioning systems. X

Desirable Reports from earlier inspections of air conditioning systems, andfor the generation of an energy performance certificate

Records of maintenance operations carried out on refrigerationsystems, including cleaning indoor and outdoor heat exchangers,refrigerant leakage tests, repairs to refrigeration components orreplenishing with refrigerant.

Records of maintenance operations carried out on air deliverysystems, including filter cleaning and changing, and cleaning ofheat exchangers.

Records of calibration and maintenance operations carried out oncontrol systems and sensors, or BMS systems and sensors.

Records of sub-metered air conditioning plant use or energyconsumption.

For relevant air supply and extract systems, commissioning resultsof measured absorbed power at normal air delivery and extractrates, and commissioning results for normal delivered delivery andextract air flow rates (or independently calculated specific fanpower for the systems).

Optional An estimate of the design cooling load for each system (ifavailable). Otherwise, a brief description of the occupation of thecooled spaces, and of power consuming equipment normally usedin those spaces.

X

Records of any issues or complaints that have been raisedconcerning the indoor comfort conditions achieved in the treatedspaces.

Where a BMS is used the manager should arrange for a short



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statement to be provided describing its capabilities, the plant it isconnected to control, the set points for the control of temperature,the frequency with which it is maintained, and the date of the lastinspection and maintenance

X

Where a monitoring station, or remote monitoring facility, is used tocontinually observe the performance of equipment such as chillers,the manager should arrange for a statement to be provideddescribing the parameters monitored, and a statement reviewingthe operating efficiency of the equipment.

X

Site visit work items:Cooling Plant

Number of Units 2

Cooling Plant Equipment inspected Note: Verify information provided by client is correct by way ofinspection and insert actual verified information in fields below.

Unit Identifier CHILLER 1 - CGA600

Manufacturer TRANE

Description 88190 GLOBEY

Model / Reference ECGLA600A7

Serial Number J1155856

Year plant installed 2001

Rated Cooling Capacity(kW)

150

Refrigerant Type R-407C

Location Outside plantroom

Areas / Systems Served New extension

Note below any discrepancy between information provided by client and on site information collected:

Cooling Plant Equipment Visual inspectionItem / Guidance notes Inspection Notes Guidance

Recommendation

Is heat rejection plantoperational?

Yes No Not Appropriate

If no then provide details :



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Is area around the heatrejection plant clear ofobstructions anddebris?


If no provide information and description of obstructions:

Is chiller plantoperational?


If no then provide details:

Is area around thechiller plant clear ofobstructions anddebris?



Is there any possibilityof air recirculationthrough thecondenser?


If yes provide information and description of obstructions:

Is general condition ofchiller and associatedcentral plant in goodorder?


If no provide description of dilapidations:

Are condenser heatexchangersundamaged/ un-corroded and clean?


If no provide description:

Is insulation on primarycirculation pipe workwell fitted and in goodorder?


If no provide detail :

Is the chiller unitplaced clear fromwarm air dischargelouvers?



Locate compressorsand ensure they areoperational or can bebrought into operation


If no explain problem:



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Cooling Plant Detailed Inspection NotesItem Guidance notes Inspection Notes Guidance

Recommendation

AppropriatelySized CoolingPlant

Compare systemsizes with likelyloads. Section 4TM44 containssimple proceduresfor assessingwhether refrigerationsystems and airsupply systems arelikely to be oversized.

Following Information Required: Occupant 83Floor area: 1425m2 Occupantdensity:1425/83=17.2Lower heat gain:TM44=100W/m2 Upperlevel heat gain =100(TM44) noneed foradditional loadExpectedCapacity = 100W/m2 x 1425 =142.5 kW As theload is in +_ 15%of the installedload it is in aExpected range

Total Occupants 83

Total Floor Area 1425

Occupant density /m2 17 person/m2

Lower level heat gain 100 W/m2

Upper level heat gain 100 W/m2

Installed CoolingCapacity

150 kW

The installed size is deemed:

More than Expected

Less than Expected

As Expected

Refrigerant used Identify therefrigerant used.

Refrigerant name R-407C

Indicate where andF-Gas Regulationsinspections may berequired.

F-Gas refrigerant requiring regular leakageinspection?

Yes No

RefrigerationCharge

In operation observethe temperaturedifference across therefrigerationcompressor.

Refrigeration Temperature:

Pre compressor 11

Post Compressor 5

Ambient 25

Compared with theambient temperaturein the plant room /outside air.

The temperature deemed:

More than Expected

Less than Expected

As Expected

Refrigerationleaks

Note whetherrefrigeration heatexchangers showsigns of oily stainingthat could indicaterefrigerant leakage. If

Are there any signs of a refrigerant leak? This units ischarged with 15kg of R-407.How ever thereis no sign ofleakage, but



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present, checkwhether any attentionto this is noted in themaintenancerecords.

leakage test isstill required.Based on F gasRegulation (TheF GasRegulation1.This is ECRegulation842/2006) theoperator of thesystem mustensure that airconditioningsystemscontaining 3 kgor more of F gas(including R-407C) ischecked forleakage bycertifiedpersonnel on aregular basis(every year).Noevidence of leaktest was found inthe site.

Yes No

If yes provide comment regarding the incident andhow it has been rectified:

Water cooledchillers (coolingtowers andevaporativecondensers)

If the refrigerationequipment includeswater cooled chillerscheck that adequatewater flows areavailable through thecooling towers orevaporativecondensers toachieve efficient heattransfer. Also checkthat the waterpressure dropsacross them are inaccordance withdesign orcommissioning dataif gauges or testpoints are availableand accessible.

Is the chiller water cooled Not AppropriateYes No

If yes insert detail as follows:

Flow Reading Condenser 0 l/s

Commissioning flow rate 0 l/s

Check to ensure that Yes No



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TTTthe water is treatedand regularlychecked to ensurethat there is noLegionella risk. SeeHSE L8

RegularMaintenance

Record whetherthere is evidence of aregular inspectionand maintenanceregime carried out bysuitably competentpeople. Record andcomment on thefrequencies andscope ofmaintenance to theair conditioningequipment andsystems in relation toindustry guidelines.This, and the datesof most recentmaintenance mayalso need to bereferred to during the‘physical’ inspection.

Are there records of regular maintenance As the buildingdoesnt have anylogbookpreparing aLOGBOOKbased on TM31is very important.Based on ThePressureSystems SafetyRegulacons2000, vapourcompressionrefrigerationsystem wherethe installedpower exceeds25 kW requires awritten schemeof examination.Users andowners ofpressuresystems arerequired todemonstrate thatthey know : 1-The safeoperating limits,principallypressure andtemperature, oftheir pressuresystems, 2- Theyneed to ensurethat a suitablewritten schemeof examination isin place beforethe system isoperated. 3-They also needto ensure thatthe pressuresystem isactuallyexamined in



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accordance withthe writtenscheme ofexamination.Noevidence of thiswritten schemetest was found inthe site.

Yes No

Is the maintenance undertaken by suitably competentpeople

Yes No

Provide comment regarding maintenance frequenciesin relation to industry guidelines:

There is no evidence of regular maintenace in thesite.



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Metering Is metering installedto enable monitoringof energyconsumption ofrefrigeration plant.


If yes, record meter reading 63.52

Is a BEMs installed inthe building whichcan warn about outof range alarms?

Yes No

If No then provide details

Humidity Control Is there separateequipment installedfor humidity control?


Cooling Plant Equipment inspected Note: Verify information provided by client is correct by way ofinspection and insert actual verified information in fields below.

Unit Identifier CHILLER 2 - RTAA-214

Manufacturer TRANE

Description Air cooled chiller

Model / Reference ERTAA-214

Serial Number EKI-1878

Year plant installed 1998

Rated Cooling Capacity(kW)

490

Refrigerant Type R-22

Location ouside plantroom

Areas / Systems Served Existing building


Cooling Plant Equipment Visual inspectionItem / Guidance notes Inspection Notes Guidance

Recommendation

Is heat rejection plantoperational?


If no then provide details :

Is area around the heatrejection plant clear of




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obstructions anddebris?


Is chiller plantoperational?


If no then provide details:

Is area around thechiller plant clear ofobstructions anddebris?



Is there any possibilityof air recirculationthrough thecondenser?


If yes provide information and description of obstructions:

Is general condition ofchiller and associatedcentral plant in goodorder?


If no provide description of dilapidations:

Are condenser heatexchangersundamaged/ un-corroded and clean?


If no provide description:

Is insulation on primarycirculation pipe workwell fitted and in goodorder?



Is the chiller unitplaced clear fromwarm air dischargelouvers?



Locate compressorsand ensure they areoperational or can bebrought into operation





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Cooling Plant Detailed Inspection NotesItem Guidance notes Inspection Notes Guidance

Recommendation

AppropriatelySized CoolingPlant

Compare systemsizes with likelyloads. Section 4TM44 containssimple proceduresfor assessingwhether refrigerationsystems and airsupply systems arelikely to be oversized.

Following Information Required: Occupant 328Floor area: 5575m2 Occupantdensity:5575/328=17Lower heat gain:TM44=100W/m2 Upperlevel heat gain =100 (TM44) noadditional loadrequire Coolingcapacity = 100W/m2 x 5575 =557.5 kW 490 x0.15 (Acceptablerange) + 490 =563 kW As theload is in +_ 15%of the installedload it is in aExpected range

Total Occupants 328

Total Floor Area 5575

Occupant density /m2 17 person/m2

Lower level heat gain 100 W/m2

Upper level heat gain 107 W/m2

Installed CoolingCapacity

490 kW

The installed size is deemed:

More than Expected

Less than Expected

As Expected

Refrigerant used Identify therefrigerant used.

Refrigerant name R-22

Indicate where andF-Gas Regulationsinspections may berequired.

F-Gas refrigerant requiring regular leakageinspection?

Yes No

RefrigerationCharge

In operation observethe temperaturedifference across therefrigerationcompressor.

Refrigeration Temperature:

Pre compressor 11

Post Compressor 5

Ambient 25

Compared with theambient temperaturein the plant room /outside air.

The temperature deemed:

More than Expected

Less than Expected

As Expected

Refrigerationleaks

Note whetherrefrigeration heatexchangers showsigns of oily stainingthat could indicate

Are there any signs of a refrigerant leak? This units ischarged with 56kg of R-22. However there is nosign of leakage,



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refrigerant leakage. Ifpresent, checkwhether any attentionto this is noted in themaintenancerecords.

but leakage testis still required.Based on ECRegulation No2037/2000 (Thisis EC Regulationon HCFCrefrigerant. ThisRegulation aimsto reduceemissions ofHCFC) theoperator of thesystem mustensure that airconditioningsystemscontaining 30 kgor more of HCFCrefrigerant(including R22)is checked forleakage bycertifiedpersonnel on aregular basis(every 6motns).Noevidence of leaktest was found inthe site.Legislation bansthe supply ofnew R22refrigerant usedto serviceequipment from31st December2009. Onlyreclaimed orrecycled R22refrigerant maybe used fromJanuary 2010and then onlyuntil 31stDecember 2014.Systemsoperating on R22refrigerant will beclassed as “notserviceable” fromDecember 2014A complete ban



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of R22refrigerant,includingreclaimed orrecycled willbecome effectiveon 31stDecember 2014.I recommend toconsiderreplacing the R-22 with R-407cor otherrefrigerant by theend of 2013.Engage anexpert to checkthe possibility ofintroducing newrefrigerant andchanging allsettings andtemperature/pressure settingpoints

Yes No




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DDDRDRRRRRWater cooledchillers (coolingtowers andevaporativecondensers)

If the refrigerationequipment includeswater cooled chillerscheck that adequatewater flows areavailable through thecooling towers orevaporativecondensers toachieve efficient heattransfer. Also checkthat the waterpressure dropsacross them are inaccordance withdesign orcommissioning dataif gauges or testpoints are availableand accessible.

Is the chiller water cooled Not AppropriateYes No

If yes insert detail as follows:

Flow Reading Condenser 0 l/s

Commissioning flow rate 0 l/s

Check to ensure thatthe water is treatedand regularlychecked to ensure

Yes No



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that there is noLegionella risk. SeeHSE L8

RegularMaintenance

Record whetherthere is evidence of aregular inspectionand maintenanceregime carried out bysuitably competentpeople. Record andcomment on thefrequencies andscope ofmaintenance to theair conditioningequipment andsystems in relation toindustry guidelines.This, and the datesof most recentmaintenance mayalso need to bereferred to during the‘physical’ inspection.

Are there records of regular maintenance Based on ThePressureSystems SafetyRegulacons2000, vapourcompressionrefrigerationsystem wherethe installedpower exceeds25 kW requires awritten schemeof examination.Users andowners ofpressuresystems arerequired todemonstrate thatthey know : 1-The safeoperating limits,principallypressure andtemperature, oftheir pressuresystems, 2- Theyneed to ensurethat a suitablewritten schemeof examination isin place beforethe system isoperated. 3-They also needto ensure thatthe pressuresystem isactuallyexamined inaccordance withthe writtenscheme ofexamination.Noevidence of thiswritten schemetest was found inthe site.

Yes No

Is the maintenance undertaken by suitably competentpeople

Yes No

Provide comment regarding maintenance frequenciesin relation to industry guidelines:

As there is no evidence of regular maintenance,preparing a logbook based on TM 31 is highlyrecommended.

Metering Is metering installedto enable monitoring




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If yes, record meter reading 104.6

Is a BEMs installed inthe building whichcan warn about outof range alarms?

Yes No

If No then provide details

Humidity Control Is there separateequipment installedfor humidity control?




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Air Handling Systems:

Number of Units 1

Note: For safety reasons, it will be necessary for air handling fans in air distribution systems to be turned offin order to gain access inside air handlers or ductwork to examine components such as fans, drives, filters,heat exchangers and control dampers. The building manager should arrange safe access for the inspector.

Air Handling Systems Equipment InspectionUnit Identifier CCGA

Systems Served fromcooling plant

Connected to the two main air cooled chillers

Manufacturer(s) TRANE

Year systems installed 2001

Location Roof Plant room

Areas / Systems Served Whole Building


CCGA-07-07 2.960 m3/s

Air Handling System Detailed Inspection NotesItem Guidance notes Inspection Notes Guidance

Recommendation

Filters Check condition ofintake air filters andcheck air inlets andoutlets forobstruction.

Inlet and filter conditions acceptable Filter was almostblocked however thepressure dropwas 100 pawhich is not highhowever I wouldsuggest tochange the filtermore regulary asit will improve theefficiency ofwhole system

Yes No

Note the usual filterchanging or cleaningfrequency, and theelapsed time since

Filter changes according to measured pressure drop? Not Appropriate



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the last change orclean, in relation toindustry guidance.

Yes No

If no provide description below:

Specific FanPower

Estimate the specificfan power (SFP) ofair movementsystems, providedthat this can be donesimply from existingrecords of theinstalled fancapacities and theflow rates andpressure drops notedin commissioningrecords, forcomparison with theguidance

Use the guidance in TM44 section 4.4 tables 4.1Indicative ventilation rates for various types ofbuildings (Source BSRIA BG14/2003(20) and 4.2yardstick installed fan capacities (source BSRIAAG1/2000(21))

Not Appropriate

1.85

Are air flow rates and system pressures availablefrom commissioning data?

Yes No

[Undertake SFP calculation is it reasonable i.e. lessthan 3]

3 m3/s = 300 lit/s. this unit consume 5500 watt SFP=5500/3000 = 1.85 < 2 ( Compliance guide-BuldingRegulation 2006) Accepted

Fan Rotation Check for correctrotation of fans. Ifpossible, observe themodulation ofmultiple fans inresponse to loadchanges.

Does the fan rotate in the correct sense? Not AppropriateYes No

Is speed control or modulation operationYes No

Condition ofHeat Exchangers

Assess condition ofheat exchangers.Note whether anyheat exchangersurfaces aresignificantlydamaged, or blockedby debris or dust.Where reasonablypractical, and wheresuitable informationis available forcomparison, the airpath resistanceacross the coilshould be measuredand compared withthe designresistance.

Are heat exchangers in good condition No guidancegiven.Yes No

If no provide description below:

Refrigerationleaks (if DX coilinstalled)

Note whetherrefrigeration heatexchangers show

Are there any signs of a refrigerant leak No guidancegiven.



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signs of oily stainingthat could indicaterefrigerant leakage. Ifpresent, checkwhether any attentionto this is noted in themaintenancerecords.

Yes No


Fan and Control Note the fan type,and method of airspeed control.Check the settingand operation of anyfresh air/recirculationdampers

Centrifugal fan, As this unit is 100% fresh air there isno inter control between extract and fresh air however the amount of fresh air will get control by usingmanual damper.

No guidancegiven.

Heat recovery Identify whether thesystems have anyenergy conservationfacilities, e.g. heatrecovery, free coolingsequence, and checkfor evidence thatsuch facilitiesare/have beenfunctioning.

Energy Conservation features installed: No guidancegiven.

Air leakage Observe the airhandling plant andvisible aircontainmentincluding ductwork,floor or ceilingplenums andbuilders’ work shaftsfor signs of excessiveleakage and energyloss.

Not Appropriate

Outdoor air inlets (a) Locate the inletsfor outdoor air.(b) Note anysignificantobstructions orblockages to inletgrilles, screens andpre-filters.(c) Note where inletsmay be affected byproximity to localsources of heat, or toair exhausts.

The inlet is located on the roof in the side of buildingnot facing car park There is no blockage orobstruction There is no source of heat or exhaust air.

No guidancegiven.



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Terminal Units:

Number of Units 3

Terminal Unit Equipment InspectionUnit Identifier FAN COIL- G07/E


Feed Two supply grills, Cooled water from Chiller one



Location In the middle of the room, in the false ceiling close to the board

Areas / Systems Served Meeting Room 2358


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Terminal Unit Detailed Inspection NotesItem Guidance notes Inspection Notes Guidance

Recommendation

Insulation Visually inspect theroute and conditionof the cooling systempipe work servinglocal areas.Check that pipe workor ductwork (or both)is appropriatelyinsulated.

Is pipe work adequately insulated? Ask a member ofyourmaintenanceteam to replacethe ductcompletely andfix the insulation.

Yes No

Is ductwork adequately insulated?Yes No

If no provide detail:

The duct has broken and there is a big hole in theduct which simply cause no air coming out of thegrilleThe insulation is not properly installed as there aresome loose parts in the duct work

Unit Condition Visually check thecondition andoperation of indoorunits.

Are the terminal units in good working order? Filter nedds tobechanges/cleaned

Yes No

If no provide comment regarding condition:

Grilles & Air Flow Review air deliveryopenings, grilles ordiffusers, and route

Are diffusers /grilles clean and in good order? Not Appropriate



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by which air isextracted from thespaces.

Yes No


Note whether theseappear to providegood distribution.

Yes they provide good distribution, however usinggrilles with adjustable vanes would give moreflexibility to the occupier of the room.

Check that chilledand hot water are notbeing supplied toterminalssimultaneously

Are chilled and hot water being supplied to terminalssimultaneously

Yes No

Review evidence thatoccupants find the airdeliveryarrangementsunacceptable – forexample check thecomplaints log (if it isavailable)

Issues arising from facilities manager’s records

DiffuserPositions

Assess thepositioning andgeometry of airsupply openings inrelation to extractopenings.

Are air supply grilles positioned well in relation toextract openings?

Not Appropriate

Yes No

If no provide comment:

Observe ifpartitioning orfurniture is affectingperformance.

No effect on performmance

Terminal Unit Equipment InspectionUnit Identifier FANCOIL-FCU2-108


one supply grille-Feed from chiller two



Location False ceiling-Middle of the room

Areas / Systems Served Meeting Romm 2340



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TTTNote below any discrepancy between information provided by client and on site information collected:

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Recommendation

Insulation Visually inspect theroute and conditionof the cooling systempipe work servinglocal areas.Check that pipe workor ductwork (or both)is appropriatelyinsulated.

Is pipe work adequately insulated? Not AppropriateYes No




Are the terminal units in good working order? Filter wasblocked, replaceor clean the filter

Yes No


Grilles & Air Flow Review air deliveryopenings, grilles ordiffusers, and routeby which air isextracted from thespaces.

Are diffusers /grilles clean and in good order? Not AppropriateYes No



Yes it does provide good distribution, but I wouldprovide for flexibility to change the grille to adjustablevane grilles.



Yes No

Review evidence thatoccupants find the airdeliveryarrangementsunacceptable – forexample check the




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complaints log (if it isavailable)

DiffuserPositions



Not Appropriate

Yes No


Observe ifpartitioning orfurniture is affectingperformance.

No effect

Terminal Unit Equipment InspectionUnit Identifier FANCOIL E/102


two supply grilles/feed from chiller one



Location in the false ceiling close to area 2349

Areas / Systems Served Reception-second floor


HF0B04DWH5L2


Recommendation

Insulation Visually inspect theroute and conditionof the cooling systempipe work servinglocal areas.Check that pipe workor ductwork (or both)is appropriately

Is pipe work adequately insulated? Engage amember of yourmaintenanceteam to fix theinsulation



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insulated. Yes No



The insulation around duct was loose


Are the terminal units in good working order? The filter wasblocked-Engagea memebr ofyourmaintenanceteam to replaceor clean the filter

Yes No


Grilles & Air Flow Review air deliveryopenings, grilles ordiffusers, and routeby which air isextracted from thespaces.

Are diffusers /grilles clean and in good order? Not AppropriateYes No



Good distribution



Yes No

Review evidence thatoccupants find the airdeliveryarrangementsunacceptable – forexample check thecomplaints log (if it isavailable)


DiffuserPositions



Not Appropriate

Yes No


Observe ifpartitioning or



DRAFTfurniture is affectingperformance.

No effect



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System Controls

Number of Units 0

System ControlsUnit Identifier 1Q241/242

Item / Guidancenotes

Inspection Notes GuidanceRecommendation

Assess zoning inrelation to factors suchas local levels ofinternal gain,orientation andexposure to solarradiation.Is the zoningappropriate?

Yes No At the moment wehave ability to controlfloors by floors as anone big zone, andindividual fan coil (s)by room thermostat, Itwould be energyefficient if we candivide each floor to twoparts and control themseparately.


Note the currentindicated weekday andtime of day oncontrollers or BMSagainst the actual time.

The time and the date are correct. Not Appropriate

Note the set on and offperiods (for weekdayand weekend if thisfacility is available withthe timer).

At the moment Fancoils start and stop is 7am-7pm andchiller start stop is 8am-6pm

At the momentFancoils start and stopis 7am-7pm and chillerstart stop is 8am-6pm Irecommend to tochange chiller time to6:30 am- 6:30 pm as atthe moment fancoilsmight work for 1 hourwithout having anycooling capacity ineach part of the day,which will not have anyeffect except aircirculation which canbe achive by usingtrickle vents or evenopenable windows.

Is there a shortfall intimer capabilities?

Yes No At the momentFancoils start and stopis 7am-7pm and chillerstart stop is 8am-6pm Irecommend to tochange chiller time to6:30 am- 6:30 pm as at



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the moment fancoilswork for 1 hour withouthaving any coolingcapacity in each part ofthe day, which will nothave any effect exceptair circulation whichcan be achive by usingtrickle vents.

If yes explain problem:

Identify and assesszone heating andcooling temperaturecontrol sensors. Arethe sensor types andlocations appropriate inrelation to heating andcooling emitters, heatflows or likelytemperaturedistributions in thezone or space?

Yes No Each room/fancoil hasits individualthermostat connectedto it so an operator isable to control thetemperature +_ 2.5 tothe level ofconvenience, the onlyrecommendation Iwould make is put aguidance nest to theeach thermostat whichinform peopleregarding to themethod of control andsetting the thermostat.


Note the settemperature in eachzone for heating andcooling in relation tothe activities andoccupancy of zonesand spaces in relationto the manager’sintent.

Cooling temperature is set to 21 C for all fancoils andindividual thermostat able the adjust this figure by +_ 2.5 C.

I recommend changingthe set temperature to23 C, because if theywant they can alwayschange it to the figurethey want but bychanging this setting,further energy savingsis possible.

Note whether a ‘deadband’ is or can be setbetween heating andcooling.

A member of maintenance team control the dead bandbetween heating and cooling so simultaneousheating/cooling will never happen

Installation of weathercompensation devicefor cooling/heatingappliance will improveefficiency of systemsand will able you tocontrol indoortemperature moreefficient

Assess therefrigerationcompressor(s) and the

Not Appropriate



DRAFTFTTTFTmethod of refrigerationcapacity control.Assess means ofmodulating orcontrolling air flow ratethrough air supply andexhaust ducts.

It is been achive by using VCD (volume controldamper)installed in all ventilation ducts and branches.

I recommend usingsupply grills withadjustable vanes, as itgive flexibility tooccupier of thebuilding/maintenanceguy to adjust air flowtowards rightdirections.



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