City Macclesfield Postcode SK11 8LF RRN Related RRN

Transcription

1 Site Details Site Address (where inspection was carried out) Macclesfield College, Park Lane, Macclesfield, SK11 8LF City Macclesfield Postcode SK11 8LF RRN Related RRN Report Information Inspection Date Issue Date UPRN Assessor Details Assessor Name Gary Littlewood Assessor ID STRO Employer/Trading Name Employer/Trading Address Accreditation Scheme Name EPC Now 19 Albion Street, Manchester M1 5LN stroma RRN: Page 1 of 37

2 Executive Summary This report has been prepared in accordance with Part 4 of the Energy Performance of Buildings (Certificates and Inspections) (England and Wales) Regulations 2007, which implements Article 9 of the Energy Performance of Buildings Directive. The inspection has been carried out by an Accredited Air Conditioning Assessor using the Department for Communities and Local Government approved inspection and reporting methodology Building type/details (building benchmark and occupancy profile) 1. This report should be retained as evidence that the required inspection has been undertaken, and it is recommended that consideration be given to implementing the report s recommendations aimed at reducing energy consumption. 2. EPC NOW Ltd has been commissioned to undertake an inspection of the air conditioning systems and associated controls at :- Macclesfield College Park Lane Macclesfield Cheshire East SK11 8LF 3. The inspection was carried out on: 27/10/2014 at 11:00 am 4. The building is a steel structured/cladded /High level glazed College/Education faciltiy, mainly consisting of Classrooms, Training rooms, Workshops, Breakout areas, IT rooms and Seminar rooms. the building has an estimated footprint of 12000m2, double glazed windows, T5 and compact fluorescent Lighting, controlled by a mixture of manual switches and occupancy sensors, Mechanical/Natural Ventillation and a high occupancy level (exact occupancy level unknown) 5.The occupancy hours are :00 Monday - Sunday 6. The Buildings Air Conditioning sytem is made up of: X 2 Mitsubishi Twin type condensor PUZHRP250HHA Connected to 2 x PCARP125GA Under Ceiling type Fan coil units X 1 Mitsubishi Split type condensor SUZKA35VA Connected to 1 x SLZKA35VA Cassette type Fan coil unit X 3 Mitsubishi Split type condensor PUZHRP100VHA2 Connected to 1 x PKARP100FAL Wall Mounted type Fan coil unit X 1 Mitsubishi Split type condensor PUZHRP100VHA2 Connected to 1 x PLARP100AA Cassette type Fan coil unit X 1 Mitsubishi Split type condensor PUZHRP125VHA2 Connected to 1 x PLARP125BA Cassette type Fan coil unit X 1 Mitsubishi Split type condensor MUZGV60VA Connected to 1 X MSZGA60VA Wall Mounted type Fan Coil X 2 Hitachi Split type condensor RAS5HVRNE Connected to 1 x RC150P5NIE Cassette type Fan coil unit X 1 Toshiba Split type condensor RAVSM1403ATE Connected to RAVSM1404UTE Cassette type Fan coil Sampling statement in accordance with DCLG guidance: RRN: Page 2 of 37

3 Executive Summary For the purpose of the report samples have been taken in accordance with CIBSE TM44, Samples taken from areas demonstrate the age, condition and method of control. The Report is based on a visual inspection only. No equipment or plant was removed or stripped down. Cooling requirements have been calculated in accordance with CIBSE guides and therefore should not be treated as an in depth heat load calculation. 7. The system in this building was assessed to be at NOS Level 3 Comments on controls/maintenance/operation A bi-annual maintenance regime was documented as being in place and is deemed adequate for current operations The Control of the system is single zone controls within each Zone (Room) The system was found to be in good working order and is adequate for current operations. Comments on availability of system documentation (or whether it had to be prepared) system documentation was readily available throughout the inspection process. Additional information of relevance to the building/system/inspection/report Included in this report wil be a description of the air conditioning services, system efficiencies, approximate sizing of the system compared to industry guidelines and suggested improvements, which could be made to increase the system efficicnecy. The inspection report wioll bennefit the owner/manager only if it's findings are acted upon RRN: Page 3 of 37

4 Key Recommendations: Advice and comments on the efficiencies of the AC sub system(s) Regularly check equipment time schedule programmes match the actual occupancy times, Easy gains with regards to energy consumption are available by ensuring that HVAC equipment is time scheduled and only operates when required. staff notices should be placed near timers/controls to prevent unauthorised use. consider wether to lock timers and allow for only senior management to review Insulation was found to be damaged/ripped where visible within the outdoor plant space. uninsulated/damaged refrigeration pipework will cause inefficiences. you should consider regular inspections of the pipework/insultation condition. follow best practice guidelines, CIBSE / HVCA SFG 20. Guide M/ Guide F Consider replacing the split type systems to a VRF system to reduce the number of individual circuits. Heat recovery are avilable and could be an effective and efficient method alternative to single split systems currently installed. heat removed from areas with constant cooling requirements may be recycled to heat other parts of the building Advice and comments on the maintenance of the AC sub system(s) F-Gas regulations, good practice guidelines suggest that regular refrigernat leak checks are essential to ensure that systems are well maintained and operating efficiently. Consider a yearly review of your maintenance regime to ensure that the bi-annual regime in place is sufficient to the systems requirements Consider regular inspections of the pipework insulation, as damaged insulation can lead to inefficiences in the operation of the system Advice and comments on the control of AC sub system(s) Consider installing PIR sensors for limited use rooms such as classrooms. The PIR sensor can trigger the room A/C unit upon occupancy and will automatically switch off the system when the room is empty Advice and comments on the management of AC sub system(s) Consider installing sub metering to the plant to enable the recording of electricity consumtion. The bennefits of completing these works will be more compelling as energy monitoring can create immediate savings when combined with up to date technology Consider seeking advice on the instalation of photovoltaic panels (PV) to provide electricity in order to run the buildings plant Consider installing solar reflective film on any windows without in order to reduce the heat gain within the building. This would allow the system's compressors to run for shorter periods of time which will save energy consumtion RRN: Page 4 of 37

5 Sub System Index Volume Definitions Sub System ID Sub System Description Effective Rated Cooling Output of Sub System (kw) Sub System Area Served vol001/sys001/ Classroom M175 sys001 Inspection Date Cooling Plant Count 2 AHU Count 0 Terminal Units Count 1 Sub System Controls Count 1 Mitsubishi PUHZRP125VHA2 Split type Condensor, 12.5 KW. Connected to a Cassette type indoor unit with hard wire local control 12 vol001/ Classroom M175 RRN: Page 5 of 37

6 Sub System Index Volume Definitions Sub System ID Sub System Description Effective Rated Cooling Output of Sub System (kw) Sub System Area Served vol001/sys002/ server room M108 sys002 Inspection Date Cooling Plant Count 3 AHU Count 0 Terminal Units Count 2 Sub System Controls Count 1 Mitsubishi PUHZRP250GA Twin type Condensor, 25 KW. Connected to 2 Cassette type indoor units with hard wire local control 25 vol001/server room M108 RRN: Page 6 of 37

7 Sub System Index Volume Definitions Sub System ID Sub System Description Effective Rated Cooling Output of Sub System (kw) Sub System Area Served vol001/sys003/ E CAT Coms Room sys003 Inspection Date Cooling Plant Count 2 AHU Count 0 Terminal Units Count 1 Sub System Controls Count 1 Mitsubishi MUZGA60VA Split type Condensor, 6 KW. Connected to 1 Wall mount type indoor unit with hard wire local control 6 vol001/ E CAT Coms Room RRN: Page 7 of 37

8 Note: Request the following information from client and complete the following checklist. The assessor should examine the relevant documentation and systems as far as possible to check that the installed equipment is as described. If the documentation is not available, then an additional part of this procedure is to locate the equipment and assemble a portfolio of relevant documentation which should include all Essential items as a minimum. Record Checklist Pre Inspection Information Level Information Required Reviewed Not Available Essential Desirable Optional Itemised list of installed air conditioning and refrigeration plant including product makes, models and identification numbers. [x] [ ] Cooling capacities, with locations of the indoor and outdoor components 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] Reports from earlier inspections of air conditioning systems, and for the generation of an energy performance certificate. Records of maintenance operations carried out on refrigeration systems, including cleaning indoor and outdoor heat exchangers, refrigerant leakage tests, repairs to refrigeration components replenishing with refrigerant. Records of maintenance operations carried out on air delivery systems, including filter cleaning and changing, and cleaning of heat exchangers. Records of calibration and maintenance operations carried out on control systems and sensors, or BMS systems and sensors. [ ] [x] [x] [ ] [x] [ ] [ ] [x] Records of sub-metered air conditioning plant use or energy consumption. [ ] [x] For relevant air supply and extract systems, commissioning results of measured absorbed power at normal air delivery and extract rates, and commissioning results for normal delivered delivery and extract air flow rates (or independently calculated specific fan power for the systems). An estimate of the design cooling load for each system (if available). Otherwise, a brief description of the occupation of the cooled spaces, and of power consuming equipment normally used in those spaces. Records of any issues or complaints that have been raised concerning the indoor comfort conditions achieved in the treated spaces. Where a BMS is used the manager should arrange for a short statement to be provided describing its capabilities, the plant it is connected to control, the set points for the control of temperature, the frequency with which it is maintained, and the date of the last inspection and maintenance. [ ] [x] [x] [ ] [ ] [x] [ ] [x] RRN: Page 8 of 37

9 Record Checklist Pre Inspection Information Level Information Required Reviewed Not Available Where a monitoring station, or remote monitoring facility, is used to continually observe the performance of equipment such as chillers, the manager should arrange for a statement to be provided describing the parameters monitored, and a statement reviewing the operating efficiency of the equipment. [ ] [x] RRN: Page 9 of 37

10 Cooling Plant Equipment Inspected Unit Identifier Component Identifier Manufacturer Description (type/details) Model/Reference Serial Number sys001 Mitsubishi Split type Condensor, 12.5 KW. Connected to a Cassette type indoor unit Mitsubishi Year Plant Installed 2007 Rated Cooling Capacity (kw) 12 Refrigerant Type Refrigerant Charge (kg) 5 Location of Cooling Plant Areas/Systems Served Mitsubishi Split type system PUHZRP125VHA2 78U00982 R410A Roof vol001/ M175 Classroom Note below any discrepancy between information provided by client and on site information collected, or any information of additional relevance to the cooling plant/system: N/A RRN: Page 10 of 37

11 This section applies to the following unit: Mitsubishi Split type Condensor, 12.5 KW. Connected to a Cassette type indoor unit Cooling Plant Equipment Visual Inspection Item Ref Inspection Item Finding Notes and Recommendations CS2.1 Is the refrigeration plant operational? Yes [x] No [ ] Fully operational CS2.2/a Is the area around the refrigeration plant clear of obstructions & debris? Yes [x] No [ ] Area is clear Consider regular inspections of the area around the Refrigeration plant to ensure it is clear of obstruction or debris. Regularly carrying out these insepctions could prolong the life of the system and ensure optimum perfomance CS2.2/b Is the general condition of refrigeration and any associated central plant in good order? Yes [x] No [ ] The system is in as good as new condition CS2.2/c CS2.3/a Is the condenser placed clear from warm air discharge louvres? Are compressors operational or can they be brought into operation? Yes [x] No [ ] Condensor is clear of warm air Louvers Yes [x] No [ ] Fully operational CS3.1/a Is the heat rejection plant operational? Yes [x] No [ ] Full Working Order Follow the Manufacturers Recommended Maintenance regime to prolong the life of the system and ensure optimum performance CS3.1/b CS3.2/a Are condenser heat exchangers undamaged/ un-corroded and clean? Is the area around the heat rejection plant clear of obstructions & debris? Yes [x] No [ ] Good Condition Yes [x] No [ ] Area is clear Consider regular inspections of the area around the heat rejection plant to ensure it is clear of obstruction or debris. Regularly carrying out these insepctions could prolong the life of the system and ensure optimum perfomance CS3.2/b Is the condenser free of any possibility of air recirculation? Yes [x] No [ ] Good clean condition RRN: Page 11 of 37

12 Cooling Plant Equipment Visual Inspection Item Ref Inspection Item Finding Notes and Recommendations Consider Regular inspections of the condensor condition. A blocked or damaged condensor coil will result in higher energy bills and possible damage to the main system components CS4.1 Is the insulation on circulation pipe work well fitted and in good order? Yes [x] No [ ] Insulation is in good condition Consider regular inspections of the insulation. Worn or damaged insulation can lead to inneficicences in the systems performance RRN: Page 12 of 37

13 Cooling Plant Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS1.1 CS1.3 Refrigerant Used Regular Maintenance Refrigerant Type Montreal/ODS/F-Gas controlled? R410A Yes [x] No [ ] F-Gas Controlled Is there evidence of regular maintenance? Yes [x] No [ ] There is an up to date F-Gas Log Book on site Is the maintenance undertaken by suitably competent people and in accordance to industry guidelines? Yes [x] No [ ] Yes The Maintenance Company in place is: Conditioned Air Technology Ltd Conditioned Air House Edward St Hyde Cheshire SK14 2BQ CS1.4 CL1.1 Appropriately Sized Cooling Plant Following Information Required: Total Occupants served by this plant 24 Total Floor Area served by this plant(m²) Occupant Density (m²/person) 3 Maximum Instantaneous Heat Gain (W/m²) Building Regulations Approved Document Part L 2nd tier documentation provides guidance suggesting that the plant should not be more than 20% oversized. This should be adopted as means of comparison to stay in line with current standards. The room has high levels of IT/Computer equipment therefore i have calculated the heat gains to be 150 W/m2 Installed Cooling Capacity (kw) 12.5 The Installed Size is Deemed: More than Expected Less than Expected As Expected [x] [ ] [ ] CS1.6 Metering Comparison to appropriate energy benchmarks Is metering installed to enable monitoring of energy consumption of refrigeration plant? Is the refrigeration plant connected to a BEMS that can provide out of range alarms? Yes [ ] Recorded meter reading No [x] N/a on this system Yes [ ] No [x] N/a on this system Are there any records of air conditioning plant usage or sub-metered energy consumption Yes [ ] No [x] N/a RRN: Page 13 of 37

14 Cooling Plant Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS2.2/d Refrigeration Leaks with expected hours of use per year for the plant? Is the energy consumption or hours of use excessive? Yes [ ] No [x] No evidence submitted Are there any signs of a refrigerant leak? Yes [ ] No [x] No visual Signs at the time of assessment Consider regular visual inspection of the the system's pipework/ Heat Rejection plant and Terminal units to look for signs of leaks eg: oily stains on the pipework or pipework insulation Immediately report any signs of leakage to the Maintenance company in place to ensure it is dealt with correctly according to F-Gas industry guidelines CL1.3 CS3.5 Refrigeration Water Cooled Chillers (Cooling Towers & Evaporative Condensers) Humidity Control Assess the refrigeration compressor(s) and the method of refrigeration capacity control Is the water flow through cooling towers or evaporative coolers even and efficient, and there is no loss of water? Is there a management regime in place to ensure that water is regularly checked and treated to ensure that there is no Legionella risk? Is there separate equipment installed for humidity control? Refrigeration Temperature: Pre Compressor( C) 22 Post Compressor( C) 34 Ambient( C) 14 The Temperature is Deemed: More than Expected Less than Expected As Expected Dc Inverter Driven [ ] [ ] [x] Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a on this sytem RRN: Page 14 of 37

15 Cooling Plant Equipment Inspected Unit Identifier Component Identifier Manufacturer Description (type/details) Model/Reference Serial Number sys002 Mitsubishi Twin Split type Condensor, 25 KW. Connected to 2 X Under ceiling type indoor unit Mitsubishi Mitsubishi Twin split type system PUHZRP250HGA 74V0004 Year Plant Installed 2007 Rated Cooling Capacity (kw) 25 Refrigerant Type Refrigerant Charge (kg) 10 Location of Cooling Plant Areas/Systems Served R410A Roof vol001/ M108 Comms Room Note below any discrepancy between information provided by client and on site information collected, or any information of additional relevance to the cooling plant/system: N/A RRN: Page 15 of 37

16 This section applies to the following unit: Mitsubishi Twin Split type Condensor, 25 KW. Connected to 2 X Under ceiling type indoor unit Cooling Plant Equipment Visual Inspection Item Ref Inspection Item Finding Notes and Recommendations CS2.1 Is the refrigeration plant operational? Yes [x] No [ ] Fully operational CS2.2/a Is the area around the refrigeration plant clear of obstructions & debris? Yes [x] No [ ] Area is clear Consider regular inspections of the area around the Refrigeration plant to ensure it is clear of obstruction or debris. Regularly carrying out these insepctions could prolong the life of the system and ensure optimum perfomance CS2.2/b Is the general condition of refrigeration and any associated central plant in good order? Yes [x] No [ ] The system is in as good as new condition CS2.2/c CS2.3/a Is the condenser placed clear from warm air discharge louvres? Are compressors operational or can they be brought into operation? Yes [ ] No [x] Condensor is clear of warm air Louvers Yes [x] No [ ] Fully operational CS3.1/a Is the heat rejection plant operational? Yes [x] No [ ] Full Working Order Follow the Manufacturers Recommended Maintenance regime to prolong the life of the system and ensure optimum performance CS3.1/b Are condenser heat exchangers undamaged/ un-corroded and clean? Yes [x] No [ ] Good Condition CS3.2/a Is the area around the heat rejection plant clear of obstructions & debris? Yes [x] No [ ] Area is clear Consider regular inspections of the area around the heat rejection plant to ensure it is clear of obstruction or debris. Regularly carrying out these insepctions could prolong the life of the system and ensure optimum perfomance RRN: Page 16 of 37

17 Cooling Plant Equipment Visual Inspection Item Ref Inspection Item Finding Notes and Recommendations CS3.2/b Is the condenser free of any possibility of air recirculation? Yes [x] No [ ] Good clean condition Consider Regular inspections of the condensor condition. A blocked or damaged condensor coil will result in higher energy bills and possible damage to the main system components CS4.1 Is the insulation on circulation pipe work well fitted and in good order? Yes [x] No [ ] Insulation is in good condition Consider regular inspections of the insulation. Worn or damaged insulation can lead to inneficicences in the systems performance RRN: Page 17 of 37

18 Cooling Plant Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS1.1 CS1.3 CS1.4 CL1.1 CS1.6 Refrigerant Used Regular Maintenance Appropriately Sized Cooling Plant Metering Comparison to appropriate energy benchmarks Refrigerant Type Montreal/ODS/F-Gas controlled? R410A Yes [x] No [ ] F-Gas Controlled Is there evidence of regular maintenance? Yes [x] No [ ] There is an up to date F-Gas Log Book on site Is the maintenance undertaken by suitably competent people and in accordance to industry guidelines? Is metering installed to enable monitoring of energy consumption of refrigeration plant? Is the refrigeration plant connected to a BEMS that can provide out of range alarms? Are there any records of air conditioning plant usage or sub-metered energy consumption with expected hours of use per year for the plant? Yes [x] No [ ] Yes Following Information Required: Total Occupants served by this plant 0 Total Floor Area served by this plant(m²) Occupant Density (m²/person) 0 Maximum Instantaneous Heat Gain (W/m²) Installed Cooling Capacity (kw) 12.5 The Installed Size is Deemed: More than Expected Less than Expected As Expected Yes [ ] Recorded meter reading No [x] N/a on this system [ ] [ ] [x] Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a Building Regulations Approved Document Part L 2nd tier documentation provides guidance suggesting that the plant should not be more than 20% oversized. This should be adopted as means of comparison to stay in line with current standards. I have based my calculation on 350 W/m2 due to the levels of IT/Comms equipment within this room There are 2 x 25kw Twin type split systems installed in M108 Comms room that share the load. one system works for 12 hours then is stopped allowing the secondary system to take over for 12 hours RRN: Page 18 of 37

19 Cooling Plant Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS2.2/d CL1.3 CS3.5 Refrigeration Leaks Refrigeration Water Cooled Chillers (Cooling Towers & Evaporative Condensers) Humidity Control Is the energy consumption or hours of use excessive? Yes [ ] No [x] No evidence submitted Are there any signs of a refrigerant leak? Yes [ ] No [x] No visual Signs at the time of assessment Assess the refrigeration compressor(s) and the method of refrigeration capacity control Is the water flow through cooling towers or evaporative coolers even and efficient, and there is no loss of water? Is there a management regime in place to ensure that water is regularly checked and treated to ensure that there is no Legionella risk? Is there separate equipment installed for humidity control? Refrigeration Temperature: Pre Compressor( C) 20 Post Compressor( C) 34 Ambient( C) 14 The Temperature is Deemed: More than Expected Less than Expected As Expected Dc Inverter Driven [ ] [ ] [x] Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a on this sytem RRN: Page 19 of 37

20 Cooling Plant Equipment Inspected Unit Identifier Component Identifier Manufacturer Description (type/details) Model/Reference sys003 Mitsubishi Split type Condensor, 6 KW. Connected to a Wall mount type indoor unit Mitsubishi Mitsubishi split type system MUZGA60VA Serial Number Year Plant Installed 2006 Rated Cooling Capacity (kw) 6 Refrigerant Type Refrigerant Charge (kg) 2 Location of Cooling Plant Areas/Systems Served R410A Roof vol001/ E CAT Comms Room Note below any discrepancy between information provided by client and on site information collected, or any information of additional relevance to the cooling plant/system: N/A RRN: Page 20 of 37

21 This section applies to the following unit: Mitsubishi Split type Condensor, 6 KW. Connected to a Wall mount type indoor unit Cooling Plant Equipment Visual Inspection Item Ref Inspection Item Finding Notes and Recommendations CS2.1 Is the refrigeration plant operational? Yes [x] No [ ] Fully operational CS2.2/a Is the area around the refrigeration plant clear of obstructions & debris? Yes [x] No [ ] Area is clear Consider regular inspections of the area around the Refrigeration plant to ensure it is clear of obstruction or debris. Regularly carrying out these insepctions could prolong the life of the system and ensure optimum perfomance CS2.2/b Is the general condition of refrigeration and any associated central plant in good order? Yes [x] No [ ] The system is in as good as new condition CS2.2/c CS2.3/a Is the condenser placed clear from warm air discharge louvres? Are compressors operational or can they be brought into operation? Yes [x] No [ ] Condensor is clear of warm air Louvers Yes [x] No [ ] Fully operational CS3.1/a Is the heat rejection plant operational? Yes [x] No [ ] Full Working Order Follow the Manufacturers Recommended Maintenance regime to prolong the life of the system and ensure optimum performance CS3.1/b CS3.2/a Are condenser heat exchangers undamaged/ un-corroded and clean? Is the area around the heat rejection plant clear of obstructions & debris? Yes [x] No [ ] Good Condition Yes [x] No [ ] Area is clear Consider regular inspections of the area around the heat rejection plant to ensure it is clear of obstruction or debris. Regularly carrying out these insepctions could prolong the life of the system and ensure optimum perfomance RRN: Page 21 of 37

22 Cooling Plant Equipment Visual Inspection Item Ref Inspection Item Finding Notes and Recommendations CS3.2/b Is the condenser free of any possibility of air recirculation? Yes [x] No [ ] Good clean condition Consider Regular inspections of the condensor condition. A blocked or damaged condensor coil will result in higher energy bills and possible damage to the main system components CS4.1 Is the insulation on circulation pipe work well fitted and in good order? Yes [x] No [ ] Insulation is in good condition Consider regular inspections of the insulation. Worn or damaged insulation can lead to inneficicences in the systems performance RRN: Page 22 of 37

23 Cooling Plant Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS1.1 CS1.3 CS1.4 CL1.1 CS1.6 Refrigerant Used Regular Maintenance Appropriately Sized Cooling Plant Metering Comparison to appropriate energy benchmarks Refrigerant Type Montreal/ODS/F-Gas controlled? R410A Yes [x] No [ ] F-Gas Controlled Is there evidence of regular maintenance? Yes [x] No [ ] There is an up to date F-Gas Log Book on site Is the maintenance undertaken by suitably competent people and in accordance to industry guidelines? Is metering installed to enable monitoring of energy consumption of refrigeration plant? Is the refrigeration plant connected to a BEMS that can provide out of range alarms? Are there any records of air conditioning plant usage or sub-metered energy consumption with expected hours of use per year for the plant? Yes [x] No [ ] Yes Following Information Required: Total Occupants served by this plant 0 Total Floor Area served by this plant(m²) Occupant Density (m²/person) 0 Maximum Instantaneous Heat Gain (W/m²) Installed Cooling Capacity (kw) 6 The Installed Size is Deemed: More than Expected Less than Expected As Expected Yes [ ] Recorded meter reading No [x] N/a on this system [ ] [ ] [x] Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a Building Regulations Approved Document Part L 2nd tier documentation provides guidance suggesting that the plant should not be more than 20% oversized. This should be adopted as means of comparison to stay in line with current standards. I have based my calculation on 250 W/m2 as there is high levels of IT/Comms equipment within this room RRN: Page 23 of 37

24 Cooling Plant Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS2.2/d CL1.3 CS3.5 Refrigeration Leaks Refrigeration Water Cooled Chillers (Cooling Towers & Evaporative Condensers) Humidity Control Is the energy consumption or hours of use excessive? Yes [ ] No [x] No evidence submitted Are there any signs of a refrigerant leak? Yes [ ] No [x] No visual Signs at the time of assessment Assess the refrigeration compressor(s) and the method of refrigeration capacity control Is the water flow through cooling towers or evaporative coolers even and efficient, and there is no loss of water? Is there a management regime in place to ensure that water is regularly checked and treated to ensure that there is no Legionella risk? Is there separate equipment installed for humidity control? Refrigeration Temperature: Pre Compressor( C) 24 Post Compressor( C) 34 Ambient( C) 14 The Temperature is Deemed: More than Expected Less than Expected As Expected Dc Inverter Driven [ ] [ ] [x] Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a on this system Yes [ ] No [x] N/a on this sytem RRN: Page 24 of 37

25 Air Handling Systems: Note: For safety reasons, it will be necessary for air handling fans in air distribution systems to be turned off in 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. RRN: Page 25 of 37

26 Terminal Units: Terminal Unit Equipment Inspection Unit Identifier sys001/vol001/fcu001 / Classroom M175 Component Identifier Fcu 001/ PLARP125BA Cassette type fan coil unit Description of Unit sys001/ Mitsubishi/ Classroom M175 Identify Cooling Plant Serving Terminal Unit sys001 Manufacturer Mitsubishi Year Terminal Unit Installed 2007 Terminal Unit Location Classroom M175 Area Served vol001/ Classroom M175 Note below any discrepancy between information provided by client and on site information collected, or any information of additional relevance to the terminal unit/system: None RRN: Page 26 of 37

27 This section applies to the following unit:fcu 001/ PLARP125BA Cassette type fan coil unit Terminal Unit Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS4.1 Insulation Is the pipework adequately insulated? Yes [x] No [ ] Insulation (where visible) is in good condition Is the ductwork adequately insulated? Yes [ ] No [x] No ductwork on this system Consider regular inspections of the pipeworks insulation and report any worn/damaged insulation to you maintenance provider in order to ensure optimum performance CS4.2 Unit Condition Are the terminal units in good working order? Yes [x] No [ ] As good as new condition CS5.1 Grilles & Air Flow Do air delivery openings provide good distribution? Yes [x] No [ ] Is there evidence of tampering with diffusers? Yes [ ] No [x] No CS5.2 Are chilled and hot water being supplied to terminals simultaneously? Are there are any records of occupant complaints regarding air distribution Yes [ ] No [x] N/a on this system Yes [ ] No [x] No complaint recorded CS5.3 CS5.4 CS5.5 Diffuser Positions Is there potential for air to short-circuit from supply to extract? Is the position of partitioning or furniture adversely affecting performance? Yes [ ] No [x] system is free from short-circuit potential Yes [ ] No [x] There are no obstructions to system performance Is the control and operation adequate? Yes [ ] No [x] system provides adequate control RRN: Page 27 of 37

28 Terminal Unit Equipment Inspection Unit Identifier sys002/vol001/ M108 Server room Component Identifier Fcu002 Under ceiling type fan coil unit Description of Unit sys002/mitsubishi PCARP125GA / M108 Server room Identify Cooling Plant Serving Terminal Unit sys002 Manufacturer Mitsubishi Year Terminal Unit Installed 2007 Terminal Unit Location M108 Server room Area Served vol001/ M108 Server room Note below any discrepancy between information provided by client and on site information collected, or any information of additional relevance to the terminal unit/system: None RRN: Page 28 of 37

29 This section applies to the following unit:fcu002 Under ceiling type fan coil unit Terminal Unit Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS4.1 Insulation Is the pipework adequately insulated? Yes [x] No [ ] Insulation (where visible) is in good condition Is the ductwork adequately insulated? Yes [ ] No [x] No ductwork on this system Consider regular inspections of the pipeworks insulation and report any worn/damaged insulation to you maintenance provider in order to ensure optimum performance CS4.2 Unit Condition Are the terminal units in good working order? Yes [x] No [ ] As good as new condition CS5.1 Grilles & Air Flow Do air delivery openings provide good distribution? Yes [x] No [ ] Is there evidence of tampering with diffusers? Yes [ ] No [x] No CS5.2 Are chilled and hot water being supplied to terminals simultaneously? Are there are any records of occupant complaints regarding air distribution Yes [ ] No [x] N/a on this system Yes [ ] No [x] No complaint recorded CS5.3 CS5.4 CS5.5 Diffuser Positions Is there potential for air to short-circuit from supply to extract? Is the position of partitioning or furniture adversely affecting performance? Yes [ ] No [x] system is free from short-circuit potential Yes [ ] No [x] There are no obstructions to system performance Is the control and operation adequate? Yes [ ] No [x] system provides adequate control RRN: Page 29 of 37

30 Terminal Unit Equipment Inspection Unit Identifier sys003/vol001/ E101 Server room Component Identifier fcu003 Mitsubishi MSZ-GA60VA Wall mounted Fan coil Description of Unit sys003 Identify Cooling Plant Serving Terminal Unit sys003 Manufacturer Mitsubishi Year Terminal Unit Installed 2006 Terminal Unit Location M108 Server room Area Served vol001/ M108 Server room Note below any discrepancy between information provided by client and on site information collected, or any information of additional relevance to the terminal unit/system: None RRN: Page 30 of 37

31 This section applies to the following unit:fcu003 Mitsubishi MSZ-GA60VA Wall mounted Fan coil Terminal Unit Detailed Inspection Notes Item Ref Item Inspection Item Finding Notes and Recommendations CS4.1 Insulation Is the pipework adequately insulated? Yes [x] No [ ] Insulation (where visible) is in good condition Is the ductwork adequately insulated? Yes [ ] No [x] No ductwork on this system Consider regular inspections of the pipeworks insulation and report any worn/damaged insulation to you maintenance provider in order to ensure optimum performance CS4.2 Unit Condition Are the terminal units in good working order? Yes [x] No [ ] As good as new condition CS5.1 Grilles & Air Flow Do air delivery openings provide good distribution? Yes [x] No [ ] Is there evidence of tampering with diffusers? Yes [ ] No [x] No CS5.2 Are chilled and hot water being supplied to terminals simultaneously? Are there are any records of occupant complaints regarding air distribution Yes [ ] No [x] N/a on this system Yes [ ] No [x] No complaint recorded CS5.3 CS5.4 CS5.5 Diffuser Positions Is there potential for air to short-circuit from supply to extract? Is the position of partitioning or furniture adversely affecting performance? Yes [ ] No [x] system is free from short-circuit potential Yes [ ] No [x] There are no obstructions to system performance Is the control and operation adequate? Yes [ ] No [x] system provides adequate control RRN: Page 31 of 37

32 System Controls: System Controls Item Ref Inspection Item Finding Notes and Recommendations n/a Sub System Identifier (if applicable) sys001 CS8.1 CS8.2 CS8.3/a Is the zoning appropriate in relation to anticipated cooling demand? Note the current indicated weekday and time of day on controllers or BMS against the actual time. Note the set on and off periods (for weekday and weekend if this facility is available with the timer). Yes [x] No [ ] Single zone control Set time Sunday 9:05 - Actual time Monday 11:34 Timer not used CS8.3/b Is there a shortfall in timer capabilities? Yes [ ] No [x] No Shortfall Consider setting timers to run the system during office days/hours This will avoid wasted energy if the system is left running during unoccupied times CS8.4 CS8.5 CS8.6 CS8.7 Identify and assess zone heating and cooling temperature control sensors. Are the sensor types and locations appropriate in relation to heating and cooling emitters, heat flows or likely temperature distributions in the zone or space? Note the set temperature in each zone for heating and cooling in relation to the activities and occupancy of zones and spaces in relation to the manager's intent. Note whether a 'dead band' is, or can be, set between heating and cooling. Do the sub system controls integrate effectively with the overall system control strategy? Yes [x] No [ ] Factory fitted within return grille of fan coil unit 19c Factory set Yes [x] No [ ] Consider turning the temperature settings up to 23c This should maintain a comfortable enviroment for occupants and save energy on the running of the system RRN: Page 32 of 37

33 System Controls Item Ref Inspection Item Finding Notes and Recommendations CS8.8 PS3.6 Assess the means of modulating or controlling air flow rate through the air supply and exhaust ducts. Are guidance notices visible or controls available to inhibit use of cooling equipment whilst windows are open or cooling/heating is on? Aorflow is controlled by a selectable fan speed controller and modulated Yes [ ] No [x] No visible signage Consider installing signage, local to controllers to inhibit the use of the air conditioning whilst windows are open. Consider installing signage that limits the use of controllers to a suitably compotent person/manager Consider installing limit switches to windows to turn off the air conditioning plant when a window is opened. RRN: Page 33 of 37

34 System Controls Item Ref Inspection Item Finding Notes and Recommendations n/a Sub System Identifier (if applicable) sys002 CS8.1 CS8.2 CS8.3/a Is the zoning appropriate in relation to anticipated cooling demand? Note the current indicated weekday and time of day on controllers or BMS against the actual time. Note the set on and off periods (for weekday and weekend if this facility is available with the timer). Yes [x] No [ ] Single zone control Time not set Timer not used CS8.3/b Is there a shortfall in timer capabilities? Yes [ ] No [x] No Shortfall Consider setting timers to run the system during office days/hours This will avoid wasted energy if the system is left running during unoccupied times CS8.4 CS8.5 CS8.6 CS8.7 CS8.8 Identify and assess zone heating and cooling temperature control sensors. Are the sensor types and locations appropriate in relation to heating and cooling emitters, heat flows or likely temperature distributions in the zone or space? Note the set temperature in each zone for heating and cooling in relation to the activities and occupancy of zones and spaces in relation to the manager's intent. Note whether a 'dead band' is, or can be, set between heating and cooling. Do the sub system controls integrate effectively with the overall system control strategy? Assess the means of modulating or controlling air flow rate through the air supply and exhaust ducts. Yes [x] No [ ] Factory fitted within return grille of fan coil unit 19c Factory set Yes [x] No [ ] Airflow is controlled by a selectable fan Consider turning the temperature settings up to 23c This should maintain a comfortable enviroment for occupants and save energy on the running of the system RRN: Page 34 of 37

35 System Controls Item Ref Inspection Item Finding Notes and Recommendations PS3.6 Are guidance notices visible or controls available to inhibit use of cooling equipment whilst windows are open or cooling/heating is on? speed controller and modulated Yes [ ] No [x] No visible signage Consider installing signage, local to controllers to inhibit the use of the air conditioning whilst windows are open. Consider installing signage that limits the use of controllers to a suitably compotent person/manager Consider installing limit switches to windows to turn off the air conditioning plant when a window is opened. RRN: Page 35 of 37

36 System Controls Item Ref Inspection Item Finding Notes and Recommendations n/a Sub System Identifier (if applicable) sys003 CS8.1 CS8.2 CS8.3/a Is the zoning appropriate in relation to anticipated cooling demand? Note the current indicated weekday and time of day on controllers or BMS against the actual time. Note the set on and off periods (for weekday and weekend if this facility is available with the timer). Yes [x] No [ ] Single zone control Time not set Timer not used CS8.3/b Is there a shortfall in timer capabilities? Yes [ ] No [x] No Shortfall Consider setting timers to run the system during office days/hours This will avoid wasted energy if the system is left running during unoccupied times CS8.4 CS8.5 CS8.6 CS8.7 CS8.8 Identify and assess zone heating and cooling temperature control sensors. Are the sensor types and locations appropriate in relation to heating and cooling emitters, heat flows or likely temperature distributions in the zone or space? Note the set temperature in each zone for heating and cooling in relation to the activities and occupancy of zones and spaces in relation to the manager's intent. Note whether a 'dead band' is, or can be, set between heating and cooling. Do the sub system controls integrate effectively with the overall system control strategy? Assess the means of modulating or controlling air flow rate through the air supply and exhaust ducts. Yes [x] No [ ] Factory fitted within return grille of fan coil unit 19c Factory set Yes [x] No [ ] Airflow is controlled by a selectable fan Consider turning the temperature settings up to 23c This should maintain a comfortable enviroment for occupants and save energy on the running of the system RRN: Page 36 of 37

37 System Controls Item Ref Inspection Item Finding Notes and Recommendations PS3.6 Are guidance notices visible or controls available to inhibit use of cooling equipment whilst windows are open or cooling/heating is on? speed controller and modulated Yes [ ] No [x] No visible signage Consider installing signage, local to controllers to inhibit the use of the air conditioning whilst windows are open. Consider installing signage that limits the use of controllers to a suitably compotent person/manager Consider installing limit switches to windows to turn off the air conditioning plant when a window is opened. RRN: Page 37 of 37