Specification

Air

Office

• Fresh air to the building will be provided by air handling unit systems located in the plant space with heat recovery. Air will be filtered, heated, or cooled and delivered into the raised floor plenum void by a ductwork system as necessary and air being discharged up into the building through floor swirl grilles mounted in the raised floor
• The system will be designed to provide 10l/s per person of fresh air to the net lettable areas

Toilets

• 10 air changes per hour with twin exhaust fans

Car Park

• Carpark ventilation is Natural with jet fan assistance

Load Densities for Cooling

Office

• Lighting: 5 Watts/sq.m. – LED
• Small Power: 25 Watts/sq.m.
• People: 1 person per 10 sq.m.
• Occupancy and lighting loads may vary to match the final fit-out layout

Thermal Transmittance – U-Values

• (W/M2/K)
• Floors: 0.15
• Roof: 0.15
• External Walls: 0.18
• Office Space Windows: Glazing 1.4
• Shading Coefficient: 25% to 32% or as required.

Noise and Vibration Control

• Office: NR35 typical
• Toilet Core Area NR 40.
• External plant NR 45 @ 30m or site boundary
• Back of precast concrete Panel.

Primary Heating System

• The heating requirement of the office block will be served by 2 no. high efficiency Multi Function (MF) Heat pumps, with back up modular packaged Natural Gas Fired Fully Modulating Boilers located at roof level
• Low pressure hot water will be pumped by variable speed pumps to terminal units (fan coil units / radiators) via a conventional pressurised insulated mild steel piping network distributed through vertical riser shafts at either end of the office block

Primary Cooling System

• The cooling plant consists of two no. high efficiency air cooled chillers, and 2 no. MF heat pumps. The chillers have high efficiency cooling features and operate during the day to meet the cooling load
• Chilled water will be delivered to the terminal units via insulated mild steel pipework and variable speed pumps and will be routed through vertical riser shafts within the office building. The system will also have a condensate drain piping system with piping routed in false ceilings

Air Conditioning Systems

• Air conditioning will be provided by means of a four pipe fan coil unit system with water side control. Units are arranged on a modular basis for flexibility. This permits a flexible partition arrangement and good temperature control. Fan Coil units will be located on a density is 1 per 38m2 throughout

Building Control Systems (BCS)

• The building will be controlled by a Building Management System. The system will be fully automatic and linked to a modem for external monitoring. The system will have energy monitoring and targeting facilities. The BMS system will automatically control the Air Conditioning System

Plumbing and Fire Protection

Design Criteria

• Domestic Cold Water Supply System in accordance with Dublin Corporation’s requirements water will be stored within the building on the basis of 40 litres per person based on 1 person / 10sq. m and a catering allowance
• Cold water will be stored in format 30 sectional storage tanks in the plantroom. Rainwater will be stored in tanks and will be delivered to WC’s and urinal’s etc. via service risers within the core areas toilet suites
• The Cold Water Storage requirement will be a combination of Rain Water Harvesting and Potable Cold Water
• Hot water will be generated by means of central high efficiency DHW heat pumps.
• A boosted mains water supply will distribute throughout the building via vertical service shafts. Three DWS supply points complete with valve connection will be provided at each main Landlord core

Sanitary Waste and Vent Systems

• The system will be double stack system fully ventilated. The system shall comply with BS5572, BS8301 and the requirements of the Building Regulations Part H. Rodding access will be provided at each floor level and at ends of horizontal floats. Fire stopping shall be provided using intumescent collars at each floor level. Carpark basement piping will be SMV / cast iron or equal

Fire Protection

• Dry risers to Fire Cert requirements
• Gas detection CO detection
• A central sprinkler system will be installed to cover all levels and areas within Four and Five Park Place development to meet the Fire Cert requirements

Vertical Transportation

• Lifts are Kone automatically programmed gearless traction machine room less passenger lifts. The lift systems have indicator lights in the lift lobbies. Lift cars are equipped with an emergency telephone system which will be monitored 24 hours per day, 7 days per week
• Four Number in Four Park Place and Three Number in Five Park Place 17 person passenger lifts and one number central shared 17 passenger and goods lift will be provided
• Three number Fire-fighting fireman’s lifts will be provided across the development to comply with statutory requirements and are incorporated as part of the above passenger lift numbers

Electrical Services

Design Criteria

Load Densities

• Office Lighting: 5 W/sq. m
• Office General Services sockets and small power: 25W/sq.m. Load density of 1 workstation / 9sq.m
• Occupancy and lighting loads may vary to match the final fit-out layout

Lighting Levels

• Office areas: 350 Lux
• Circulation: 200 Lux
• Car Parks: 200 Lux
• Service Areas: 150-200 Lux

Electrical Main Power Service

• An ESB MV supply will be brought to the LV sub- station by the ESB from Adelaide Road
• The building will be fed from the ESB supply transformers located at the below ground basement Substation. ESB supplies at 400V, complete with LV metering, will be provided subject to normal ESB arrangements
• The switchroom will house the LV meter for each half floor. The power distribution board will be adjacent to the Substation. The Switch Room will house the building landlord supply and all tenant supplies
• The development is set up for multi tenancy with LV supply to each distribution board, one per floor in each of Four and Five Park Place

Distribution

• The LV Switchboards will be located in the switch room. The Landlord switchboard will be equipped with an essential services bus-bar section for Landlords’ essential services. All remaining outgoing supplies will be designated non-essential
• Power factor correction, harmonic filtering and surge protection will be provided in the Main distribution board which will be type-tested and constructed in accordance with Form 4 Type 2. Sub-distribution boards will be type-tested and constructed in accordance with Form 3 Type 2
• Switchboards will be constructed to allow flexible metering arrangements to coincide with particular Tenants’ occupancy arrangements. Each Building has its own riser duct for Tenants’ and Core’ services. Each floor will be provided with a tenant distribution board. Each distribution board will be served with a separate sub-main from the appropriate section of the relevant switch board. Sub mains cables will be routed via the duct risers and will be run on galvanised cable tray and the LV supply metered separately
• Tenants’ distribution boards will serve their local general lighting, local general services via under floor power tracks, and local mechanical services such as fan coil units

Lighting And Small Power

• Throughout the office areas, recessed modular luminaires suitable for use with VDUs for a uniform lighting level 350 lux. These luminaires will be low energy LED type. Provision to provide flexible switching arrangements for any future cellular layout of offices
• A lighting control system will be provided allowing full automatic control of all luminaires. Core area lighting on each office floor will consist of recessed compact LED down lighters and recessed LED strip lights. Entrance area lighting on the ground floor will comprise of low energy lighting with recessed LED strip lights. External access and security lighting. Staircase lighting will comprise surface mounted circular wall lights. Corrosion proof lighting will be provided to car park and plant areas
• Facilities for general services power within open plan office areas will be provided by means of under floor power busbar each capable of serving workstations. RCBOs will be provided within the Busbar system
• Hand dryers will be provided within toilets

Generator Power

• A standby generator for essential emergency services will be provided within the basement. This will provide power for essential services in the event of ESB unpredicted power failure. These services include: Fire-fighting lifts, Core lighting, Fire Alarm, Smoke Ventilation systems
• A fuel tank will be housed within the generator’s frame base, no bulk fuel storage will be provided. The engine exhaust pipe will be routed to atmosphere. Automatic changeover will be provided between the ESB supply, the standby supply and the essential services

Emergency Lighting

• Emergency lighting complying with IS3217 will be provided to circulation areas and open plan office areas. Three hour duration battery inverter packs will be provided to selected general luminaires in these areas
• Self-contained external emergency luminaires at all exits.
• Self-contained, maintained, 3 hour duration, emergency exit signs will be provided on exit routes from the building. These will include circulation areas, notional corridors and staircases. Emergency lighting central test units will be provided

Telephone/Data Communications

• Dedicated containment for vertical distribution voice / data cabling will be provided within risers. These will be routed to the basement rooms provided for entry points for telecommunications services. Two entry points will be provided for communication cabling allowing supply resilience

Earthing

• Earthing system in accordance with the ETCI Rules

Fire Alarm, Life Safety And Fireman’s Remote Control Fan Systems

• An addressable fire alarm system, type L1 complying with IS3218 and EN54 will be provided to all core area of the building based on an open plan offices layout. Tenants will be expected to modify / add to the detectors and sounders in their areas in the case of cellularisation of offices
• The main fire alarm panel will be located in the reception area with a separate fire alarm panel and loop to each of the office floors
• Fire alarm interface units will be provided to lifts, gas valves, mechanical services control panels, door access systems, colt vent systems, etc. so that these systems can respond appropriately to a fire situation. Facilities for remote monitoring will be provided

Lightning Protection / Surge Protection

• A lightning protection system complying with ISEN 62305 will be provided. The system will comprise air terminal, roof network, earth electrodes, inspection pits and test links. Down conductors will comprise the reinforced concrete structure being bonded together during construction or equivalent

Security System

• Intruder alarm system complying with IS199 will be provided. This will include magnetic read door contacts on all external doors at ground floor level, basement car park and roof access areas
• Glass break detectors will be provided to all areas on the ground floor
• Facilities for remote monitoring will be provided. Digital IP based CCTV cameras are being provided to the building, entrance lobbies and reception area to provide general view of traffic movement to the basement car park
• An access control system will be provided to control entry to the building from the basement car park
• Access control will be provided to the main building entrance. Egress will be by push button to open switches with emergency green break glass units. The access control equipment will be located in the reception with monitoring facilities
• Conduit drops with draw wires will be provided on doors to open plan office areas from the main core circulation space on each floor. These will be provided to facilitate the installation of tenant access control systems. Conduits will terminate in walls in flush single gang boxes equipped with cover plates
• The access control system CCTV system and intruder alarm system will all be linked together to provide a comprehensive security system

Rainwater Harvesting System

• The system will comprise of a rain water collection tank, submersible pump, piping and controls unit with two stage filtration, leaf filter, and separate rain water piping to W.C.’s in the core areas in the system
• The rain water will be collected off the building roof areas and pass through the leaf filter and will be accumulated in the collection tank. The rain water will be pumped through the two stage filtration to the sanitary fittings outlets
• The tanks will have level controls, overflows and will be connected to a rainwater booster unit to serve the outlets. The piping system will be a separate system from the domestic hot and cold water system
• The rain water storage tank will also have a mains water top up connection to augment when rain water supply is low

LEED

• The building will be designed to a standard that will target LEED Platinum. This will include the services Energy aspects metering and controls, Water Conservation requirements with the dual flush, controls, metering etc. and will include the relevant aspects on Management that will also require a user input

PV Solar Panels

• An array of photovoltaic solar panels will be located on the roof level feeding into the landlord LV distribution system. The system will be provided with inverters and local means of isolation by the fire brigade

Sustainability

• A BER rating of A3 or better will be achieved

Standards

The mechanical and electrical services installations will be designed to the following standards:

• Current Irish Building Regulations
• CIBSE Design Guide
• ETCI National Rules for Electrical Installation
• Safety, Health and Welfare Act
• Irish Building Regulation Current Technical Guidance documents
• All relevant Irish Standards and Codes of Practice