Air conditioning inspection report
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Executive summary
GT HVAC Sales Ltd have been commissioned to undertake an inspection of the air conditioning systems and associated controls in accordance with Part 4 of the Energy Performance of Buildings Regulations at Gordons Chemist Enniskillen. The building is located in the High Street area of Enniskillen and operates as a Pharmacy. The Air Conditioning associated with the building is located in the following areas: General Shop 4no. split systems. Occupancy. The Chemist part of the Building is occupied during normal working hours which are as follows. Mon - Sat 09.00 - 17.30 Sun Closed The primary aim of the Report is to give the building owner, or operator, information about the performance of the system and plant and to identify opportunities to save energy and cut operating costs. This Report identifies any operating anomalies; no-cost/low-cost savings and capital investment opportunities; the size and appropriateness of refrigeration plant in relation to cooling loads and the effectiveness of current maintenance regimes. The inspection and subsequent report is provided to comply solely with the requirements of the EPBD. The inspection procedure has been conducted following guidance from CIBSE TM44 and is a visual observation inspection only. No detailed measurements have been carried out during the inspection process unless indicated otherwise. Whilst reasonable steps have been taken to ensure that the information contained within this report is correct, you should be aware that it may be incomplete, inaccurate or may have become out of date. Accordingly, no warranties or representations of any kind as to the content of this report or its accuracy and, to the maximum extent permitted by law, the inspection company accept no liability whatsoever for the same including without limit, for direct, indirect or consequential loss, business interruption, loss of profits, production, contracts, good will or anticipated savings. Any person making use of this report does so at their own risk. Included within this report will be a description of the air conditioning services, system efficiencies and approximate sizing of the system compared to industry guidelines and suggested improvements, which could be made to increase the system efficiency. The inspection and report will benefit the owner or manager only if its findings are acted upon. Whilst some items with regard to Health and Safety may have been noted, this should not be taken as a complete Report on Health and Safety. 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. The report may also cover several areas under a landlords’ control. Sampling Statement: This has been based on a sampling approach as detailed below: • A minimum of 10% of the total number of external units (of the same make/type) with a minimum of 3 units. • A minimum of 2% of the internal units when they are of a similar design with a minimum of 3 units. Please note that 3no. Split System on this site has been inspected which is 75% total amount of cooling equipment installed. The brick, block and clad type building is situated in a Shopping area location and was constructed in the last 60 years but has had many refurbishments during this period. The building has solid floors and ceilings with double glazed windows that occupy approximately 20% of the exterior wall area on the Air Conditioned areas. The site operates as a Pharmacy and based upon some basic site measurements, comprises a net internal area of approximately 344m2 in total for the Air Conditioned part of the building. This report is based only on the areas in the building which are cooled by mechanical cooling. There is only one area in the building with Air Conditioning systems. Equipment inspected: 3no. Toshiba Cassette split systems serving Shop area #1 This represents all Manufacturers and types of equipment installed in this building. Essential system documentation including an asset register, cooling capacities, method of control and schematics were made available at the time of the inspection, for the purpose of the report documentation was prepared on site. There was evidence on site that the equipment is regularly maintained. The general maintenance of the systems was of a good standard with clean filters and coils on all inspected units. The total amount of comfort cooling installed at this site is approx 44Kw and the type of refrigerant used within the systems is R410A; The air conditioning systems were installed in 2018. A number of opportunities are outlined within the report that should be implemented to maximise efficiency. While there is no requirement to carry out any recommendations, acting upon the advice within the report will undoubtedly lead to a reduction in energy consumption and operating costs. External Units All of the external condensers on site were visually inspected for coil condition, obstructions to air flow and signs of refrigerant leakage. Model numbers, refrigerant type and weight were recorded. The external condensing units were generally found to be in a good condition with clean coils on inspected units giving no cause for concern. The air conditioning condensing units are positioned to allow good air circulation across the coils. There were no blockages to air paths and no significant risk of warm discharge air circulating from adjacent units or other sources A sweep of the vicinity of the units was carried out using an electronic refrigerant leak detector, the systems were also observed for other signs of refrigerant leakage and no leaks were detected. The fans on the units that were operating during the inspection were observed to be rotating freely and appeared mechanically sound with the air flow across the coils in the correct direction. Internal Units All of the internal units at this site were accessible were visually observed for condition and air flow obstructions. Filters, coils and temperature samples were inspected from the internal units linked to the inspected external units. The inspected filters and coils on the internal units were observed to be in a clean condition. As efficiency and effectiveness of air conditioning relies heavily on heat transfer between coil and air, blocked filters do result in a poor performance. Filters should be regularly checked and any dust should be removed. If filters are regularly found to be dusty then it may be necessary to increase the regularity of the PPM visits. The fans on the units that were operating during the inspection were observed to be rotating freely and appeared mechanically sound with the air flow across the coils in the correct direction. Temperature samples were taken with a digital thermometer on the inspected units and these were all found to be operating correctly. More details regarding the operating characteristics of the internal units can be found in this report. Controls The controllers and temperature sensors throughout the building were checked for set points and for heat source obstructions. The inspected internal air conditioning units linked to a single split system have their own wall mounted controllers to allow adjustment of temperature and time settings. The controllers allow the operating mode, temperature set-point, fan speeds and time schedules to be set by the staff. There is no Building Management System (BMS) at this site. There are no Guidance notes provided to show staff how to operate the air conditioning systems. It should be noted that all equipment was running when I arrived to carry out the inspection. The temperature set-points on individual unit controllers were varied and were generally found to be in both cooling and heating mode and set between 19°C and 24°C. It is recommended that seasonal set-points are introduced at this site to minimise energy waste. The winter set-points should be between 19°C and 20°C with the unit set to heating only mode and summer set-points of 23°C to 24°C operating in cooling only mode. Due to the fluctuating external conditioning during spring/autumn the option of utilising auto mode would ensure that set-points (21°C - 22°C) are satisfied with minimal adjustments required to the controllers. From previous Carbon Trust studies it is recommended that when heat pumps are in cooling mode that they are set to maintain 24°C, with an estimated saving of 4% on annual system running costs for every 1K increase in cooling set-point temperature.
Key recommendations
Efficiency
1. Consider improving the control of the systems. See advice and comments on the control of AC sub system(s).
2. Consider examining heat loads from solar gain to reduce the dependency on air conditioning equipment by investigating treatments to glazing or fitting blinds where appropriate or not already fitted. Solar shading devices are often useful, as are high tech solar films on south facing windows
As expected
Maintenance
As expected
1.Consider heat recovery systems where fresh air is introduced to the building.
2.Temperature Set Points (Dead-Band); regularly check that system temperature schedule programmes match current occupancy requirements. In non-critical areas try to lower heating set points to as low as possible (19 oC) and raise cooling set points to 25oC and ensure controls strategy has a “dead band” of at least 3 oC between the need for cooling and the need for heating. Consider allowing temperatures in non-critical areas to fluctuate more widely than is traditionally expected but in a controlled manner.
3.Controls; review the control of cooling equipment within the building ensuring; - Controls are set to the correct time and day - Set points are appropriately selected - Equipment cannot operate when building is not occupied.
Controls
As expected
1. Consider improving the control of the systems. See advice and comments on the control of AC sub system(s).
Management
As expected
1.Sub-metering; consider installing sub metering to the Chiller / HVAC plant to enable the recording of electricity consumption. The benefits of completing these works will be more compelling as energy monitoring will form an essential part of new Carbon reducing legislation. Introduce policy that all new electrical installations should be fitted with Sub-meters as standard.
Subsystems inspected
VOL001/SYS001 Split Air Conditioning system#1
- Volume definitions
- VOL001 VOL001 Shop area#1
- Description
- Cassette Air Conditioning System
- Effective rated cooling output
- 10 kW
- Area served
- Shop area#1
- Inspection date
- 5 August 2021
- Cooling plant count
- 1
- AHU count
- 0
- Terminal units count
- 1
- Sub system controls count
- 1
VOL001/SYS002 Split Air Conditioning system#2
- Volume definitions
- VOL001 VOL001 Shop area#1
- Description
- Cassette Air Conditioning System
- Effective rated cooling output
- 10 kW
- Area served
- Shop area#1
- Inspection date
- 5 August 2021
- Cooling plant count
- 1
- AHU count
- 0
- Terminal units count
- 1
- Sub system controls count
- 1
VOL001/SYS003 Split Air Conditioning system#3
- Volume definitions
- VOL001 VOL001 Shop area#1
- Description
- Cassette Air Conditioning System
- Effective rated cooling output
- 10 kW
- Area served
- Shop area#1
- Inspection date
- 5 August 2021
- Cooling plant count
- 1
- AHU count
- 0
- Terminal units count
- 1
- Sub system controls count
- 1
Pre-inspection records requested
Essential records
These records were reviewed:
- Itemised list of installed air conditioning and refrigeration plant including product makes, models and identification numbers
- Cooling capacities, with locations of the indoor and outdoor components of each plant
- Description of method of control of temperature
- Description of method of control of periods of operation.
- Floor plans and schematics of air conditioning systems.
These records were not available:
- Description of system control zones, with schematic drawings
Desirable records
These records were reviewed:
- 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
These records were not available:
- 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
- Records of sub-metered air conditioning plant use or energy consumption
- 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)
Optional records
These records were reviewed:
- 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
These records were not available:
- 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
- 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
Cooling plants
Cooling plant 1
- Unit Identifier
- VOL001/SYS001 Split Air Conditioning system#1
- Component Identifier
- VOL001/SYS001/CP1 Outdoor Unit#1
Equipment Inspected
- Rated Cooling Capacity (kW)
- 10
- Description (type/details)
- Single Split
- Location of Cooling Plant
- Rear of Shop
- Manufacturer
- Toshiba
- Model/Reference
- RAS-SM1103AT-E
- Refrigerant Charge (kg)
- 3
- Refrigerant Type
- R410A
- Serial Number
- 82600568
- Year Plant Installed
- 2018
- Areas/Systems Served
- Shop area#1
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:
No discrepancies
Approved sections
CS2.1 Is the refrigeration plant operational?
Yes
As expected
CS2.2/a Is the area around the refrigeration plant clear of obstructions & debris?
Yes
As expected
CS2.2/b Is the general condition of refrigeration and any associated central plant in good order?
Yes
As expected
CS2.2/c Is the condenser placed clear from warm air discharge louvres?
Yes
As expected
CS2.3/a Are compressors operational or can they be brought into operation?
Yes
As expected
CS3.1/a Is the heat rejection plant operational?
Yes
As expected
CS3.1/b Are condenser heat exchangers undamaged/ un-corroded and clean?
No
Corrosion is visible on outdoor unit, but system is operating OK
CS3.2/a Is the area around the heat rejection plant clear of obstructions & debris?
Yes
As expected
CS3.2/b Is the condenser free of any possibility of air recirculation?
Yes
As expected
CS4.1 Is the insulation on circulation pipe work well fitted and in good order?
Yes
As expected
Appropriately Sized Cooling Plant
- Installed Cooling Capacity (kW)
- 10
- Occupant Density (m2/person)
- 10
- Total Floor Area served by this plant(m2)
- 70
- Total Occupants served by this plant
- 7
- Maximum Instantaneous Heat Gain (W/m2)
- 160
- The Installed Size is Deemed
- As expected
Notes and Recommendations
The current version of the Building Regulations Approved Document Part L 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.
As expected
Total area covered by this equipment
Total area divided by occupants
Shop areas have a rule of thumb between 140 and 160W/m2
Total Cooling capacity of this equipment is 7Kw.
The scope of the report does not permit an in depth cooling load calculation. Shop areas have a rule of thumb between 140 and 160W/m2 therefore the expected cooling duty for this area would be as follows. m2 X W/m2= W (70 x 160= 11,200) Installed equipment = 10Kw Estimated load = 11.2Kw
Refrigeration
- Pre Compressor(°C)
- 5
- Post Compressor(°C)
- 55
- Ambient(°C)
- 12
- The Temperature is Deemed
- As expected
- Refrigerant Type
- R410A
- Assess the refrigeration compressor(s) and the method of refrigeration capacity control
- No access to the compressor; the scope of the report does not permit internal examination. However ran system on cooling and checked temperature difference between suction pipe on inlet to unit and discharge temperature at top of Condenser.
Are there any signs of a refrigerant leak?
No
No leaks visible
Montreal/ODS/F-Gas controlled?
Yes
For equipment that contains between 5-50 tonnes of CO2 equivelent the equipment should be tested for leakage every 12 months, or if a leakage detection system is installed, every 24 months. With R410A this is 2.2Kg to 22Kg. GWP R410A 2880 x 3 = 8,640 CO2e
Notes and Recommendations
Suction Temperature
Discharge temperature
Ambient temperature
As expected
Regular Maintenance
Is there evidence of regular maintenance?
Yes
Equipment is clean and has been maintained.
Is the maintenance undertaken by suitably competent people and in accordance to industry guidelines?
Yes
Equipment is well maintained
Metering Comparison to appropriate energy benchmarks
Is metering installed to enable monitoring of energy consumption of refrigeration plant?
No
Is the refrigeration plant connected to a BEMS that can provide out of range alarms?
No
No BMS installed at this site
Are there any records of air conditioning plant usage or sub-metered energy consumption with expected hours of use per year for the plant?
No
No sub metering installed here.
Is the energy consumption or hours of use excessive?
No
Equipment not used out of hours
Water Cooled Chillers (Cooling Towers & Evaporative Condensers)
Is the water flow through cooling towers or evaporative coolers even and efficient, and there is no loss of water?
No
No water cooling plant associated with this plant.
Is there a management regime in place to ensure that water is regularly checked and treated to ensure that there is no Legionella risk?
No
No water cooling plant associated with this plant.
Humidity Control
Is there separate equipment installed for humidity control?
No
No humidity settings installed
Cooling plant 2
- Unit Identifier
- VOL001/SYS002 Split Air Conditioning system#2
- Component Identifier
- VOL001/SYS002/CP1 Outdoor Unit#2
Equipment Inspected
- Rated Cooling Capacity (kW)
- 10
- Description (type/details)
- Single Split
- Location of Cooling Plant
- Rear of Shop
- Manufacturer
- Toshiba
- Model/Reference
- RAS-SM1103AT-E
- Refrigerant Charge (kg)
- 3
- Refrigerant Type
- R410A
- Serial Number
- 8260055
- Year Plant Installed
- 2018
- Areas/Systems Served
- Shop area#1
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:
No discrepancies
Approved sections
CS2.1 Is the refrigeration plant operational?
Yes
As expected
CS2.2/a Is the area around the refrigeration plant clear of obstructions & debris?
Yes
As expected
CS2.2/b Is the general condition of refrigeration and any associated central plant in good order?
Yes
As expected
CS2.2/c Is the condenser placed clear from warm air discharge louvres?
Yes
As expected
CS2.3/a Are compressors operational or can they be brought into operation?
Yes
As expected
CS3.1/a Is the heat rejection plant operational?
Yes
As expected
CS3.1/b Are condenser heat exchangers undamaged/ un-corroded and clean?
No
Corrosion is visible on outdoor unit, but system is operating OK
CS3.2/a Is the area around the heat rejection plant clear of obstructions & debris?
Yes
As expected
CS3.2/b Is the condenser free of any possibility of air recirculation?
Yes
As expected
CS4.1 Is the insulation on circulation pipe work well fitted and in good order?
Yes
As expected
Appropriately Sized Cooling Plant
- Installed Cooling Capacity (kW)
- 10
- Occupant Density (m2/person)
- 10
- Total Floor Area served by this plant(m2)
- 70
- Total Occupants served by this plant
- 7
- Maximum Instantaneous Heat Gain (W/m2)
- 160
- The Installed Size is Deemed
- As expected
Notes and Recommendations
The current version of the Building Regulations Approved Document Part L 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.
As expected
Total area covered by this equipment
Total area divided by occupants
Shop areas have a rule of thumb between 140 and 160W/m2
Total Cooling capacity of this equipment is 7Kw.
The scope of the report does not permit an in depth cooling load calculation. Shop areas have a rule of thumb between 140 and 160W/m2 therefore the expected cooling duty for this area would be as follows. m2 X W/m2= W (70 x 160= 11,200) Installed equipment = 10Kw Estimated load = 11.2Kw
Refrigeration
- Pre Compressor(°C)
- 5
- Post Compressor(°C)
- 55
- Ambient(°C)
- 12
- The Temperature is Deemed
- As expected
- Refrigerant Type
- R410A
- Assess the refrigeration compressor(s) and the method of refrigeration capacity control
- No access to the compressor; the scope of the report does not permit internal examination. However ran system on cooling and checked temperature difference between suction pipe on inlet to unit and discharge temperature at top of Condenser.
Are there any signs of a refrigerant leak?
No
No leaks visible
Montreal/ODS/F-Gas controlled?
Yes
For equipment that contains between 5-50 tonnes of CO2 equivelent the equipment should be tested for leakage every 12 months, or if a leakage detection system is installed, every 24 months. With R410A this is 2.2Kg to 22Kg. GWP R410A 2880 x 3 = 8,640 CO2e
Notes and Recommendations
Suction Temperature
Discharge temperature
Ambient temperature
As expected
Regular Maintenance
Is there evidence of regular maintenance?
Yes
Equipment is clean and has been maintained.
Is the maintenance undertaken by suitably competent people and in accordance to industry guidelines?
Yes
Equipment is well maintained
Metering Comparison to appropriate energy benchmarks
Is metering installed to enable monitoring of energy consumption of refrigeration plant?
No
Is the refrigeration plant connected to a BEMS that can provide out of range alarms?
No
No BMS installed at this site
Are there any records of air conditioning plant usage or sub-metered energy consumption with expected hours of use per year for the plant?
No
No sub metering installed here.
Is the energy consumption or hours of use excessive?
No
Equipment not used out of hours
Water Cooled Chillers (Cooling Towers & Evaporative Condensers)
Is the water flow through cooling towers or evaporative coolers even and efficient, and there is no loss of water?
No
No water cooling plant associated with this plant.
Is there a management regime in place to ensure that water is regularly checked and treated to ensure that there is no Legionella risk?
No
No water cooling plant associated with this plant.
Humidity Control
Is there separate equipment installed for humidity control?
No
No humidity settings installed
Cooling plant 3
- Unit Identifier
- VOL001/SYS003 Split Air Conditioning system#3
- Component Identifier
- VOL001/SYS003/CP1 Outdoor unit#3
Equipment Inspected
- Rated Cooling Capacity (kW)
- 8
- Description (type/details)
- Single Split
- Location of Cooling Plant
- Rear of Shop
- Manufacturer
- Toshiba
- Model/Reference
- RAS-SM808AT-E
- Refrigerant Charge (kg)
- 2
- Refrigerant Type
- R410A
- Serial Number
- 82600444
- Year Plant Installed
- 2018
- Areas/Systems Served
- Shop area#1
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:
No discrepancies
Approved sections
CS2.1 Is the refrigeration plant operational?
Yes
As expected
CS2.2/a Is the area around the refrigeration plant clear of obstructions & debris?
Yes
As expected
CS2.2/b Is the general condition of refrigeration and any associated central plant in good order?
Yes
As expected
CS2.2/c Is the condenser placed clear from warm air discharge louvres?
Yes
As expected
CS2.3/a Are compressors operational or can they be brought into operation?
Yes
As expected
CS3.1/a Is the heat rejection plant operational?
Yes
As expected
CS3.1/b Are condenser heat exchangers undamaged/ un-corroded and clean?
No
Corrosion is visible on outdoor unit, but system is operating OK
CS3.2/a Is the area around the heat rejection plant clear of obstructions & debris?
Yes
As expected
CS3.2/b Is the condenser free of any possibility of air recirculation?
Yes
As expected
CS4.1 Is the insulation on circulation pipe work well fitted and in good order?
Yes
As expected
Appropriately Sized Cooling Plant
- Installed Cooling Capacity (kW)
- 8
- Occupant Density (m2/person)
- 5
- Total Floor Area served by this plant(m2)
- 25
- Total Occupants served by this plant
- 5
- Maximum Instantaneous Heat Gain (W/m2)
- 160
- The Installed Size is Deemed
- More than expected
Notes and Recommendations
The current version of the Building Regulations Approved Document Part L 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.
As expected
Total area covered by this equipment
Total area divided by occupants
Shop areas have a rule of thumb between 140 and 160W/m2
Total Cooling capacity of this equipment is 7Kw.
The scope of the report does not permit an in depth cooling load calculation. Shop areas have a rule of thumb between 140 and 160W/m2 therefore the expected cooling duty for this area would be as follows. m2 X W/m2= W (25 x 160= 4000) Installed equipment = 8Kw Estimated load = 4Kw
Refrigeration
- Pre Compressor(°C)
- 5
- Post Compressor(°C)
- 55
- Ambient(°C)
- 12
- The Temperature is Deemed
- As expected
- Refrigerant Type
- R410A
- Assess the refrigeration compressor(s) and the method of refrigeration capacity control
- No access to the compressor; the scope of the report does not permit internal examination. However ran system on cooling and checked temperature difference between suction pipe on inlet to unit and discharge temperature at top of Condenser.
Are there any signs of a refrigerant leak?
No
No leaks visible
Montreal/ODS/F-Gas controlled?
Yes
For equipment that contains between 5-50 tonnes of CO2 equivelent the equipment should be tested for leakage every 12 months, or if a leakage detection system is installed, every 24 months. With R410A this is 2.2Kg to 22Kg. GWP R410A 2880 x 3 = 8,640 CO2e
Notes and Recommendations
Suction Temperature
Discharge temperature
Ambient temperature
As expected
Regular Maintenance
Is there evidence of regular maintenance?
Yes
Equipment is clean and has been maintained.
Is the maintenance undertaken by suitably competent people and in accordance to industry guidelines?
Yes
Equipment is well maintained
Metering Comparison to appropriate energy benchmarks
Is metering installed to enable monitoring of energy consumption of refrigeration plant?
No
Is the refrigeration plant connected to a BEMS that can provide out of range alarms?
No
No BMS installed at this site
Are there any records of air conditioning plant usage or sub-metered energy consumption with expected hours of use per year for the plant?
No
No sub metering installed here.
Is the energy consumption or hours of use excessive?
No
Equipment not used out of hours
Water Cooled Chillers (Cooling Towers & Evaporative Condensers)
Is the water flow through cooling towers or evaporative coolers even and efficient, and there is no loss of water?
No
No water cooling plant associated with this plant.
Is there a management regime in place to ensure that water is regularly checked and treated to ensure that there is no Legionella risk?
No
No water cooling plant associated with this plant.
Humidity Control
Is there separate equipment installed for humidity control?
No
No humidity settings installed
Terminal units
Terminal unit 1
- Unit
- VOL001/SYS001 Split Air Conditioning system#1
- Component
- VOL001/SYS001/TU1
- Description of unit
- Cassette Indoor Unit #1
- Cooling plant serving terminal unit
- VOL001/SYS001/CP1 Outdoor Unit#1
- Manufacturer
- Toshiba
- Year installed
- 2018
- Area served
- Shop area#1
- Discrepancies noted
CS4.1 Insulation
Is the pipework adequately insulated?
Yes
As expected
Is the ductwork adequately insulated?
Yes
No ductwork associated with this plant
CS4.2 Unit condition
Are the terminal units in good working order?
Yes
As expected
CS5.1, CS5.2 Grilles and air flow
Do air delivery openings provide good distribution?
Yes
As expected
Is there evidence of tampering with diffusers?
No
No tampering evident
Are chilled and hot water being supplied to terminals simultaneously?
No
No chilled water associated with this plant
Are there are any records of occupant complaints regarding air distribution?
No
No records available
CS5.3, CS5.4, CS5.5 Diffuser positions
Is there potential for air to short-circuit from supply to extract?
No
As expected
Is the position of partitioning or furniture adversely affecting performance?
No
No partitioning evident
Is the control and operation adequate?
Yes
As expected
Terminal unit 2
- Unit
- VOL001/SYS002 Split Air Conditioning system#2
- Component
- VOL001/SYS002/TU1
- Description of unit
- Cassette Indoor Unit #1
- Cooling plant serving terminal unit
- VOL001/SYS002/CP1 Outdoor Unit#2
- Manufacturer
- Toshiba
- Year installed
- 2018
- Area served
- Shop area#1
- Discrepancies noted
CS4.1 Insulation
Is the pipework adequately insulated?
Yes
As expected
Is the ductwork adequately insulated?
Yes
No ductwork associated with this plant
CS4.2 Unit condition
Are the terminal units in good working order?
Yes
As expected
CS5.1, CS5.2 Grilles and air flow
Do air delivery openings provide good distribution?
Yes
As expected
Is there evidence of tampering with diffusers?
No
No tampering evident
Are chilled and hot water being supplied to terminals simultaneously?
No
No chilled water associated with this plant
Are there are any records of occupant complaints regarding air distribution?
No
No records available
CS5.3, CS5.4, CS5.5 Diffuser positions
Is there potential for air to short-circuit from supply to extract?
No
As expected
Is the position of partitioning or furniture adversely affecting performance?
No
No partitioning evident
Is the control and operation adequate?
Yes
As expected
Terminal unit 3
- Unit
- VOL001/SYS003 Split Air Conditioning system#3
- Component
- VOL001/SYS003/TU1
- Description of unit
- Cassette Indoor Unit #1
- Cooling plant serving terminal unit
- VOL001/SYS003/CP1 Outdoor unit#3
- Manufacturer
- Toshiba
- Year installed
- 2018
- Area served
- Shop area#1
- Discrepancies noted
CS4.1 Insulation
Is the pipework adequately insulated?
Yes
As expected
Is the ductwork adequately insulated?
Yes
No ductwork associated with this plant
CS4.2 Unit condition
Are the terminal units in good working order?
Yes
As expected
CS5.1, CS5.2 Grilles and air flow
Do air delivery openings provide good distribution?
Yes
As expected
Is there evidence of tampering with diffusers?
No
No tampering evident
Are chilled and hot water being supplied to terminals simultaneously?
No
No chilled water associated with this plant
Are there are any records of occupant complaints regarding air distribution?
No
No records available
CS5.3, CS5.4, CS5.5 Diffuser positions
Is there potential for air to short-circuit from supply to extract?
No
As expected
Is the position of partitioning or furniture adversely affecting performance?
No
No partitioning evident
Is the control and operation adequate?
Yes
As expected
System controls
Control for VOL001/SYS001 Split Air Conditioning system#1
CS8.1 Is the zoning appropriate in relation to anticipated cooling demand?
Yes
As expected
CS8.2 Note the current indicated weekday and time of day on controllers or BMS against the actual time.
No times set on remote controller
CS8.3/a Note the set on and off periods (for weekday and weekend if this facility is available with the timer).
No on or off times set as equipment is only used as required.
CS 8.3/b Is there a shortfall in timer capabilities?
No
As expected
CS8.4 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?
Yes
As expected
CS8.5 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.
As expected
CS8.6 Note whether a ‘dead band’ is, or can be, set between heating and cooling.
dead band is set between cooling and heating
CS8.7 Do the sub system controls integrate effectively with the overall system control strategy?
Yes
The assessor made the following notes and recommendations:
- As expected
CS8.8 Assess the means of modulating or controlling air flow rate through the air supply and exhaust ducts.
This is done by setting on remote controller
PS3.6 Are guidance notices visible or controls available to inhibit use of cooling equipment whilst windows are open or cooling/heating is on?
No
No guidance note available
Control for VOL001/SYS002 Split Air Conditioning system#2
CS8.1 Is the zoning appropriate in relation to anticipated cooling demand?
Yes
As expected
CS8.2 Note the current indicated weekday and time of day on controllers or BMS against the actual time.
No times set on remote controller
CS8.3/a Note the set on and off periods (for weekday and weekend if this facility is available with the timer).
No on or off times set as equipment is only used as required.
CS 8.3/b Is there a shortfall in timer capabilities?
No
As expected
CS8.4 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?
Yes
As expected
CS8.5 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.
As expected
CS8.6 Note whether a ‘dead band’ is, or can be, set between heating and cooling.
dead band is set between cooling and heating
CS8.7 Do the sub system controls integrate effectively with the overall system control strategy?
Yes
CS8.8 Assess the means of modulating or controlling air flow rate through the air supply and exhaust ducts.
This is done by setting on remote controller
PS3.6 Are guidance notices visible or controls available to inhibit use of cooling equipment whilst windows are open or cooling/heating is on?
No
No guidance note available
Control for VOL001/SYS003 Split Air Conditioning system#3
CS8.1 Is the zoning appropriate in relation to anticipated cooling demand?
Yes
As expected
CS8.2 Note the current indicated weekday and time of day on controllers or BMS against the actual time.
No times set on remote controller
CS8.3/a Note the set on and off periods (for weekday and weekend if this facility is available with the timer).
No on or off times set as equipment is only used as required.
CS 8.3/b Is there a shortfall in timer capabilities?
No
As expected
CS8.4 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?
Yes
As expected
CS8.5 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.
As expected
CS8.6 Note whether a ‘dead band’ is, or can be, set between heating and cooling.
dead band is set between cooling and heating
CS8.7 Do the sub system controls integrate effectively with the overall system control strategy?
Yes
CS8.8 Assess the means of modulating or controlling air flow rate through the air supply and exhaust ducts.
This is done by setting on remote controller
PS3.6 Are guidance notices visible or controls available to inhibit use of cooling equipment whilst windows are open or cooling/heating is on?
No
No guidance note available
Assessor’s details
- Assessor’s name
- George Tinsley
- Assessor ID
- STER000187
- Employer/Trading name
- GT HVAC Sales Ltd
- Employer/Trading address
- 28 Orpinsmill Road, Ballyclare, BT39 0SX
- Accreditation scheme
- Sterling Accreditation Ltd
- Accreditation scheme telephone
- 0161 727 4303
- Accreditation scheme email
- info@sterlingaccreditation.com
Inspection certificate
See the air conditioning inspection certificate for this property.
Other reports for this property
If you are aware of previous reports for this property and they are not listed here, please contact us at dluhc.digital-services@levellingup.gov.uk or call our helpdesk on 020 3829 0748 (Monday to Friday, 9am to 5pm).
There are no related reports for this property.