Design Control Document-MVAC

THE GATEWAY EKAMAI PROJECT PRELIMINARY CONCEPTUAL DESIGN MEP SYSTEM

Langham Place

COMPLIANCE ON DESIGN

CONTROL DOCUMENT

Prepare By : M&E Engineering 49 Limited 102 4th Flr., Athakravi Building, Sukhumvit 26 Klongton Klongtoey Bangkok 10110 Thailand: www.49group.com Date: 9 March 2010

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Compliance on Design Brief for the Langham Place

Item Design Brief ME49s Proposed 2.3 Heating, Ventilating, and Air Conditioning (HVAC) System

GENERAL REQUIREMENTS 1. Provide a centralized heating, ventilating, and air conditioning (HVAC)

system with central air handling units to serve public and back-of-house areas and four-pipe fan coil units (or two-pipe cooling with electric heat in locations with mild winters) to serve the guestrooms. Through-the-wall incremental units are not permitted.

1. Comply with the exception of using two-pipe system without electric reheat.

2. Locate the air-handling units in mechanical rooms for sound isolation and ease of access.

2. Comply

3. For indoor air quality control purposes, provide double-walled air-handling units so that no sound or thermal insulation is exposed to airflow. The interior chambers of air-handling units and fan coil units should be easily accessible for routine servicing and cleaning. Also provide double-walled ductwork with access for routine cleaning. Specify stainless steel condensate drain pans to positively drain to preclude standing water.

3. Comply for double-walled AHU.Double wall ductworks not comply. GI Sheet with fiberglass insulation is specified. Stainless steel condensate drains: not comply, using Gi sheet as per manufacturer specification.

4. Steam may be used for space heating but should be limited to steam-to-water heat exchangers.

4. N/A

5. Water-source heat pumps with multiple speed fans may be acceptable in some public or back-of-house locations, but require special attention to the control system and sound isolation. Condenser water to heat pumps should be controlled with automatic constant- flow control devices.

5. N/A

6. The chilled water system consists of centrifugal chillers with water-cooled condensers. High-pressure centrifugal or screw-type chillers using non-CFC refrigerant HFC-134a are preferred. Size the chillers to be efficient at part-load conditions.

A minimum of two chillers piped in parallel is required, each designed at

65% of peak load. Where three chillers are required, provide flexibility and some redundancy by sizing the chillers for 20%, 40% and 60% of the calculated block load capacity. In order to achieve redundancy in the primary chilled water pumping circuit, a spare pump sized for the 60% chillers, but with an adjustable head control valve on the pump discharge, can be used. Designing the chillers and associated pumps for flexibility and part-load operation lowers operating costs, reduces repair and maintenance costs, and results in more comfortable spaces.

6. Comply except for HFC134a, we proposed to use R123 due to its overall performance aspect in terms of low OPD and low GWP, and produce higher efficiency. Design consideration to have 3 chillers (40% x 3 units) of the block load capacity.

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Item Design Brief ME49s Proposed 7. In executing block cooling load calculation consider effects of load

variations (occupancies, solar load, etc) to provide a system that has sufficient capacity to meet peak cooling and heating load conditions but does not result in system with recessive amounts of spare capacity.

7. Comply

8. Provide induced, draft-type cooling towers constructed of stainless steel and/or fiberglass to dissipate condenser water heat. Locate the cooling towers to reduce noise impact on adjacent spaces. For indoor air quality control purposes, provide sufficient separation, preferably by distance rather than built feature, so as to preclude cooling tower air discharge from being drawn into ventilation air intakes under certain wind and atmospheric conditions.

8. Comply

9. A primary/secondary system is the preferred chilled water circuit design. 9. Comply, further study shall be conducted in the design of variable primary pump system for consideration.

10. The primary pumping loop of the chilled water system supplies a constant flow through each operating chillier. Control all loads with two-way control valves connected to a variable flow circulation loop. The design engineer must pay particular attention to how the chilled water control valve proportional positioning algorithm is specified and implemented by the controls contractor. The design temperature rise must be achieved across the supply and return waterside connections under all load conditions in order for the benefits of a primary- secondary system to be achieved, along with proper automatic chillier/pump sequencing operations

10.Comply for two-way control valve. Variable primary pump system to be studied for consideration.

11. Provide variable-speed secondary loop pumps. Install a wall-mounted flow meter across the de-coupler section of piping to monitor any flow reversal. Design the system to maintain a minimum differential pressure near the end of any loop and to prevent any control valve from reaching its close-off pressure rating. Provide air handling or fan coil units at the extreme ends of secondary loops with a three-way control valve in order to maintain a minimum circulation level so that chilled water does not stagnate and warm up during low-load periods. The chilled water usage diversity is approximately 70% for full-service hotels.

11.Comply, further study shall be conducted in the design of variable primary pump system for consideration.

12. The combination heating hot water and domestic hot water system consists of gas and/or fuel oil fired hot water boilers with primary/secondary hot water pumping system, expansion tank, air separator and shell-and-tube heat exchangers for the heating hot water, domestic hot water, laundry, and kitchen systems. Boiling capacity sized to meet simultaneous peak load for heating domestic hot water, laundry hot water, and kitchen hot water, with adequate spare capacity.

12.We propose using heat pumps for domestic hot water and as a pre-heat units for supplying water to steam boiler serving kitchens and laundry.

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Item Design Brief ME49s Proposed 13. In extremely cold climates, baseboard heating may be necessary near

large expanses of window. Coordinate their location, appearance, and enclosure with the interior design.

13.N/A

14. High-rise hotels are susceptible during the heating season to building leakage, in which warm interior air, naturally rising through the hotel (stack effect), may leak out of the upper portion of the pressurized hotel. This creates a negative pressure on the lower floors, increasing the undesirable infiltration of cold outside air and causing uncomfortable conditions near doors, loading docks, or other openings and around leaky dampers. To reduce this, elevator rooms should be air-conditioned rather than ventilated. (Consider DX systems as sensible coolers in this application.) Convective heat losses of idle boilers should be also controlled to mitigate the stack effect. Other mitigating measures may include the design of air dampers to minimize leakage and reduce the amounts of air exhaust during cold weather.

14.N/A

15. Equip chilled water, condenser water, steam, and hot water systems with chemical treatment systems that automatically measure and dose treatment chemicals.

15.Comply

16. Specify medium-efficiency, throwaway type air filters. Provide one complete filter change for the initial installation.

16.Comply

17. Design hotel building to maintain positive pressure, maintain environmental requirements (indoor space temperature and humidity conditions in compliance with hotel requirements) and ensure guest comfort.

17.Comply

18. Locate chillers and boiler plant above water table, with appropriate position of protection from flooding.

18.Comply

GUESTROOM AREAS 1. In most locations, provide guestrooms with four-pipe fan coil units

(FCU's), either vertical units located within the closet footprint with the discharge air ducted to the sleeping space (the preferred approach for both accessibility and noise abatement purposes) or horizontal units concealed above the entry/bathroom ceiling. Provide two-pipe cooling with electric heating only for locations with mild winters. In this case, consider both the guestroom warm-up rate and the overall heating load. In hot and humid climates, incorporate heat-pipe technology into the FCU to improve dehumidification performance. "Through the wall" PTAC or VTAC units are not permitted in guestrooms.

1. Guestroom design using 2-pipe chilled water cooling without heating. Fresh air is pre-treated thru a central unit Energy Recovery Ventilators (ERV).

2. 100% filtered and tempered outside fresh air should be ducted directly into the guestroom instead of being drawn from the guestroom corridor. Make-up air quantity should exceed bathroom exhaust air by 5%.

2. Comply

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Item Design Brief ME49s Proposed 3. Use a single, digital thermostat to control units where multiple FCU's serve

a common area. 3. Comply

4. Provide the FCU with a digital thermostat with three-speed fan (plus off position). A networked digital control system is preferred. Perceptible vibration or water noise is not acceptable. In guestrooms the Noise Criteria curve for fan coils is not to exceed NC30 at low speed, NC35 at medium speed and NC40 at high speed. The control valve (fan coil and air handling units) must close when the unit is turned off. Provide proportioning control valves to achieve optimum comfort control.

4. Comply

Proportional Control valve is specified for units more than 33,000 btu/hr capacity.

5. Provide the heating water circuit with similar differential pressure controls to those described in the general requirements (2.3-1.10). However, for locations with short or mild winters, provide a constant flow system with three-way valves. The heating water temperature is reset using a schedule based upon outside temperatures.

5. N/A

6. Provide a centralized guest bathroom exhaust system. Central roof mounted fans are preferred over individual exhaust fans mounted over each riser. A heat recovery system should be considered in the design for hotels in cooler climates. Specify sheet metal exhaust ducts; drywall shafts or plumbing chases used as plenums are not allowed. Size the fan to move one CFM per square foot of bathroom floor area, but no less than 50 CFM. Prevent sound transmission through the exhaust system in back-to-back bathroom configurations by providing suitable acoustic lining for the ductwork.

6. Comply

Using ASHRAE Standard 62.1, 2007 or 25cfm/unit (continuous rate) Comply

PUBLIC AREAS 1. Supply public spaces with conditioned air from single zone or variable air

volume (VAV) air handling units. Use multi-zone air handling units (triple-deck design; neutral deck supplied with pre-treated air) for limited applications such as administrative office areas and retail spaces.

1. Comply

2. Provide individual temperature control for each public space (including subdivisions of larger function rooms). When more than one space or room receives air from an air-handling unit, provide a VAV primary air-handling unit with pressure-independent terminal units. The VAV units should fully shut off to prevent over-cooling unoccupied rooms. Zone air-handling units by type of occupancy and time of operation to allow shut-down of the equipment when cooling/heating is not required.

2. Comply

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Item Design Brief ME49s Proposed 3. Provide fan-powered VAV terminals in public areas where constant air

movement is important - such as function spaces and food and beverage outlets. The VAV units should fully shut off during unoccupied periods to prevent over-cooling of rooms.

3. Not Comply : Normal VAV without the fan is used.

4. To meet minimum ventilation requirements in large spaces with variable occupancy (e.g. ballroom or exhibit hall) use carbon dioxide sensing in the return air stream. Where heating loads are moderate the VAV terminal units located near the building's perimeter may provide heat using a reheat coil. These units close the air supply completely upon reduced cooling loads. After the space temperature passes through the thermostat's dead band to the heating side of the range, the air supply opens (approximately 30%) to allow space heating to take place. Temperature control is achieved by modulating the control valve of a hot water reheat coil or cycling an electric reheat coil. Carbon dioxide sensing is preferred to using reheat under these conditions.

4. Comply for dividing external and internal zones. Not comply for using re-heat coils.

5. Indoor swimming pool and spa spaces pose a challenge for humidity control. Provide special dehumidification systems for air-handling equipment. Provide stainless steel ductwork exhaust from the pool equipment room.

5. Comply for stainless steel ductwork for exhaust of pool equipment room.

6. Design air-handling units with an air economizer cycle where practical so that chillers shut off when AHU's are on air economizer and guestroom cooling is not required. This might require the use of a small direct expansion air conditioner for areas with constant cooling loads such as SMART and the Data Centre. Where necessary, provide condenser water "free cooling" system utilizing a plate-and-frame heat exchanger for guestrooms and other spaces served by FCU's to meet cooling loads that cannot be addressed by air-side economizer operations.

6. N/A

7. Utilize 100% outside air factory packaged AHUs for guest corridors; with vertical riser ducts at the egress stairs. From an emission riser, utilize one duct to supply guest corridor and the duct to supply make-up air to guest rooms.

7. Not comply : Guest corridors is supplied with pre-cooled fresh air from the ERVs. same unit supplying the guestroom fresh air.

BACK-OF-HOUSE AREAS 1. Provide exhaust systems for garage, loading dock, maintenance shops,

locker rooms, electric rooms, kitchen hoods, laundries, employee cafeteria and any other areas producing odors, fames or excessive heat and as required by local codes.

1. Comply

2. Kitchen exhaust systems are totally separate and individual and serve only a single kitchen. All ductwork is welded steel, pitched back toward the hood with cleaning access doors every ten feet and at each elbow. No turning vanes or dampers are allowed. Fire insulation, not less than one-hour rated (or the minimum required by code), is applied to ductwork. Provide the cooking exhaust fan housing with a drain connection at the

2. Comply

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Item Design Brief ME49s Proposed bottom to allow the cleaning solution to manually drain. 3. Provide an exhaust hood with an automatic wash-down system over

ranges, grills, ovens, and other grease vapor-producing cooking equipment. This allows the system to supply less conditioned air to occupied areas of the kitchen to meet comfort requirements. Make-up air quantities should be 95% of exhaust air quantities to prevent odor migration to adjacent public spaces. In cold climates the make-up air is tempered and directed inward into the captured air stream to avoid discharging air directly onto food or associates or their workspace. Fan controls are mounted in a control panel near the hood to start and stop the fan as required for cooking operations. Constant water wash and short-circuit make-up air hoods are not acceptable.

3. For consideration in the Kitchen hood design by the kitchen consultant.

4. Exhaust systems for moisture emitting equipment such as steam kettles, steam pressure cookers, brain maries, dishwashers, and pot washers are to be designed with corrosion-proof and watertight ductwork. Where there is no hood or the hood does not adequately extract moisture, provide a moisture separator duct fitting. Pitch the ductwork back toward the hood or equipment for proper drainage of condensation. Mount fan controls in a panel near the hood to allow operation only when needed. Make-up air for these spaces is 95% of the exhaust air quantities to prevent odor migration to adjacent public spaces. The make-up air supply fan will be interlocked with the hood exhaust fan.

4. For consideration in the Kitchen and laundry design by the kitchen and laundry consultant.

5. Comfort conditioning is essential in the hotel laundry. In hot dry climates provide evaporative cooling. A spot-cooling system with controls convenient to laundry employees can minimize cooling requirements. Exhaust air separated from other ductwork should be directly taken from canopies or shrouds over certain such equipment as flatwork ironers or steamers to minimize the cooling load. The make-up air for the tumbler exhaust should be ducted directly to a plenum that encloses the battery of tumblers.

5. Comply.

6. Although not preferred for general use, split DX systems may be allowed in limited applications such as the Data Centre, elevator machine rooms, remote buildings of campus-style resort facilities, or where there are no reasonable alternatives.

6. Noted

7. A ceiling hung fan coil unit may be used in addition to air handling units where small temperature zones are required such as at a remote office or storage area.

7. Comply

8. For water cooled ice machines, provide a separate condenser water system that consists of constant volume pumps and a closed circuit cooling tower. One pump is to be standby.

8. For kitchen consultant design

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Item Design Brief ME49s Proposed 9. Provide 24 hour air-conditioning in:

9.1 PBS/computer room 9.2. Telephone and equipment room 9.3. A/V equipment room 9.4. Security/Dispatcher

9. Comply : design using chilled water FCU and standby unit of DX Split Units

2.4 Building Management and Control System GENERAL REQUIREMENTS 1. Provide a complete Building Management Control System (BMCS) for

monitoring and controlling the functions and performance of all major building mechanical systems and equipment. The full scope of a BMCS proposed for a hotel is determined in conjunction with LHI Project Team early in the design phase based on engineering application, initial cost, and operational cost/benefit considerations.

1. Comply

2. Design the BMCS for reliability and ease of use by hotel maintenance staff. The system is based on direct digital control (DDC) technology with stand-alone, distributed signal processing to increase reliability and speed of local processing.

2. Comply

3. Provide networked field processing panels at each BMCS equipment location using "peer-to-peer technology. All hardware and software shall be compliant with the latest BACnet open protocol standard or the LonWork standard (or both) or, preferably, standard Internet protocols as such BMCS hardware/software becomes available. Provide a terminal with a color monitor and printer in the Maintenance Office and portable plug-in interface capability at each field panel location. Include software to display a status screen of major systems and equipment.

3. Comply

4. Provide proportioning valves, damper operation, or bi-directional electric motors for equipment controlled by the BMCS. Valve operators on large equipment shall feature an integral manual positioning device. This equipment provides a positive status indication to the system though an airflow or pump-flow sensor. On larger variable-load equipment, control modules employ devices such as a current transformer with analogue input to measure horsepower. In some instances, these control devices will also serve as the status-proving signal. Lighting control for designated hotel spaces shall be based on occupancy sensors with a manual override capability.

4. Comply

5. BMCS-controlled equipment shall provide space temperature control within 1C. Function rooms and offices must incorporate an occupant-adjustable electronic thermostat instead of space sensors alone.

5. Comply

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Item Design Brief ME49s Proposed .6 Coordinate the design of the fire and life safety system with the BMCS

design to determine the level of control and integration necessary between the two systems. Likewise, coordinate the requirements of equipment featuring factory-installed controls (e.g. centrifugal chillers) with BMCS requirements.

6. Comply

7. Where economically feasible, integrate guestroom fan coil DDC controls with a BMCS system providing the necessary interface between the two systems. For optimum guestroom comfort, a fan coil unit with a variable speed fan motor and proportioning valve is preferred. [Where the hotel application and cost/benefit prove feasible provide a guestroom "occupancy-sensing" feature with a front desk interface to signal whether the room is rented or available. Where a guestroom with sliding glass patio doors is part of a BMCS occupancy-sensing system, equip the doors with a fan cut-off switch.

7. Comply except for the items listed below: - specify for 3 speed FCU

8. BMCS ability to perform the energy management functions should include (but not limited to) followings: 8.1. Time of day scheduling 8.2. Calendar based scheduling 8.3. Holiday scheduling 8.4. Temporary schedule override 8.5. Optimum Start/Stay 8.6. Night setback control 8.7. Night setback control 8.8. Peak Demand Limiting

8.9. Temperature Compensated Duty Cycling 8.10. Air Volume Flow Tracking 8.11. Heating / Cooling Interlock 8.12. Hot/ Cold Deck Reset 8.13. Free Cooling 8.14. Hot Water Reset 8.15. Chilled Water Reset 8.16. Condenser Water Reset 8.17. Chiller Sequencing 8.18. Enthalpy Switchover (Economizer)

8. Comply

9. BMCS should provide features like point focus, historical data management, trend logging with graphics visualization, time scheduling, event scheduling, load shedding, totalization, BMS-aided preventative and condition based maintenance, alarm and event management, self-diagnosis, self-auditing, system security and used authorization, graphical programming language and animated human machine interface.

9. Comply

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Item Design Brief ME49s Proposed 10. Critical alarm selectively enabled in a desirable order or priority, or

disabled, should be able to be directed to pagers, remote printers, etc. as desirable.

10. Comply

2.5 Water Supply and Distribution GENERAL REQUIREMENTS 1. The reliability and quality of the local water supply largely influences

potable water system design features. Provide on-site water storage to sustain periods of unavailability or where required for fire protection.

1. Comply, 1.5 to 2-days storage plus one hour for fire protection.

2. Laundry water and ware-washing equipment shall be softened to maintain 1 to 3 grains hardness.

If the water supply source exceeds 7 grains hardness, the entire potable

water system supply shall be softened. If an on-site purification and filtration system is required, confirm the design requirements with LHI Project Team.

In locations where the municipal water supply source is acceptable, the

hotel may require a small reverse osmosis purification system for limited applications (e.g. food service areas and ice machines).

2. Comply. To be cooperated with laundry and kitchen designers.

N/A. Note that the hardness for water

supply in Bangkok is 4.6 to 6.7 grains per gallon.

Comply. To be cooperated with

kitchen designers.

3. Supply pressure shall be between 30 and 80 PSI. High-rise hotels may require pressure zones and booster systems with variable speed drives to keep within this range. If a rooftop storage tank and gravity feed design is used, level controls for operating transfer pumps will be required. Pressure reducing valve installations (PRV) should feature two valves in parallel selected for 1/3 and 2/3 of the total capacity, respectively. All PRV stations should be designed with a bypass line with a globe valve connected upstream of the upstream isolation valve of the PRV and downstream of the downstream isolation valve of the PRV. For replacement or repair purposes, all PRV stations shall be specified with pressure gauges (and gauge cocks) which should be installed upstream of the upstream isolation valve of the PRV and downstream of the downstream isolation valve of the PRV.

3. Comply.

4. The location and quantity of water pressure zones shall be carefully evaluated by the plumbing design engineer for optimum system performance, lowered maintenance, and first cost advantage. Each water pressure zone shall be designed with redundant hot water heaters. Where hot water circulation systems serve multiple pressure zones each zone shall feature its own circulation pump and booster heater to isolate it from the others. Small circulation pumps are not able to reliably overcome the pressure drop of pressure reducing valves serving multiple pressure zones.

4. Comply with 2 options: 1) Using self regulating heating

cables instead of recirculation system.

2) Re-circulate by gravity to ground level hot water tank and pump back to roof hot water tank (open system)

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Item Design Brief ME49s Proposed 5. Langham Places brand standards include the Bathworks typical for every

guest bathroom shower installation. All aspects of the domestic water system should be reviewed by the plumbing design engineer to facilitate the pressure and flow criteria for this proprietary shower head installation. The Bathworks assembly features a rainshower showerheads connected to a common manifold. To facilitate optimum performance of this showerhead assembly, a minimum 50 PSI (60 PSI preferred) entering water pressure is required.

In order to accommodate the Bathworks Shower, the mixing valve in guest

bathrooms should be specified as high-flow pressure-balancing models, ported for 6 GPM.

5. As normal practice in Thailand, they usually use main and branch piping system, not the manifold. Note that 50-60 PSI pressure requirement causes the system having PRV in every floor. We recommend installing 50 PSI system to reduce the damage done to other sanitary fixtures.

Comply.

6. Hot water heaters may be either instantaneous, direct gas- or steam-fired, or a heat exchanger and storage tank design. LHI requires system redundancy with all hot water heaters.

The temperature at the points of use shall be (as a minimum): 160F (71C) for laundry 140F (60C) for food service equipment and kitchens 120F for all other areas or as required by local codes

6. For energy saving, we recommend using heat pump with storage tank.

Comply. However, due to the

maximum water temperature which heat pump can reach is 60C, instantaneous boost up water temperature will be used for the equipment which need in laundry. This will be cooperated with laundry designer.

7. Separate the laundry water supply system from the main building system in order to prevent pressure fluctuations during washer filling cycles; consider an open storage tank fill system for the laundry.

Also, incorporate a laundry water treatment and recycling system in the

design or, at a minimum, a rinse water re-use and heat reclamation system.

7. Comply. Comply. To be cooperated with

laundry designers.

8. All shower locations such as guestrooms, employee change areas, and fitness centers require pressure or temperature-compensating mixing valves.

8. Comply.

9. All water supplies to equipment and systems shall be controlled through approved back-flow prevention devices to prevent potable system contamination. Hose bibs, hose connections, service sinks, etc. shall be equipped with non-removable vacuum breaker devices.

9. Comply. Back-flow prevention device will be installed at main CW and HW supply pipes to laundry and also at supply pipes for all kitchen equipment.

10. Water distribution piping throughout guestroom floors must be isolated from the building structure with resilient mounts to limit vibration and noise transmission. All shower supply pipes should be secured with resilient

10.To be discussed.

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Item Design Brief ME49s Proposed material-isolated strapping and blocking near the point where the

horizontal pipe penetrates the finished wall system.

11. Provide hose bib locations in kitchen areas, mechanical rooms, swimming pool, and at the building exterior for cleaning walkways, driveways, patios, decks, receiving dock, and trash compactor areas. Such installations must be freeze-proof in colder climates. All hose bibs shall feature integral vacuum breakers or be equipped with an approved backflow preventer.

11.Comply.

12. Consider rainwater storage for uses such as flushing toilets, fire protection system supply, cooling tower make-up, or landscape irrigation.

12.To be considered.

13. Grey water usage for flushing or irrigation may be considered if the quality of water meets nationally recommended standards for purity, odor, taste, and clarity. In some cases only limited treatment may be necessary, e.g. primary bioremediation, filtration, and disinfection.

13.Comply but only irrigation usage.

2.6 Drainage System GENERAL REQUIREMENTS 1. Confirm the design requirements of an on-site sewage treatment system

where public sanitary sewers are not available or a grey water system with the LHI Project Team.

1. Comply. Currently, public sewer system still not available. Package on-site sewage treatment plant shall be provided. However, this plant will serve as primary treatment when public sewage is available in near future

2. Cast iron piping is to be used for sanitary and storm water drainage piping located within the building envelope in order to limit noise transmission.

2. Comply.

3. All pumping systems for sanitary and storm water must have redundant capacity and feature alternating controls and low- and high-level alarm limits that serve as input signals to the Building Management Control System.

3. Comply.

4. Provide a hard-piped roof rainwater overflow system. Roof scuppers are not to be used for overflow.

4. Comply.

5. Provide clean-out access ports for all sanitary horizontal piping runs for servicing with drain-cleaning equipment.

5. Comply.

6. Provide grease traps where required by local authorities or in properties with sewage treatment facilities. Locate grease traps outside buildings where they can be serviced out of guest view.

6. Comply.

2.7 Electrical Supply and Distribution System GENERAL REQUIREMENTS 1. The electrical engineer should contact the local utility for information on

local conditions, including the: Frequency and duration of any power outages, brownouts, or phase

losses

1. Noted

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Item Design Brief ME49s Proposed Need for power conditioning to compensate for voltage fluctuations

Available fault current Rate schedule

2. Design the electrical supply and distribution system for reliability. Provide two incoming lines, each capable of meeting the full load requirements of the hotel. Where possible, the incoming feeds should come from different grid areas or zones. Provide an automatic tiebreaker switch to automatically switch all distribution to the active line upon loss of the other line.

2. The underground single/double loops incoming line will be provided depended on the local utility code.

3. Ensure that the tripping of fault protection for a branch circuit or a load affects only that circuit or load. Loads or circuits in or near wet areas must be equipped with ground fault protection at the circuit level.

3. Comply

4. The hotel will have many inductive loads (e.g. electric motors, fluorescent lighting, etc.) including many fractional horsepower motors and motors operating at part-load. Therefore, power factor correction capacitors may be required to maintain the power factor consistently above 0.9 of unity.

4. Comply

5. Liquid-cooled transformers are not to use dielectric fluids containing polychlorinated biphenyl (PCB) compounds.

5. Comply

6. Aluminium conductors are not permitted. 6. All cables are copper while busways are aluminium.

7. Function rooms, primarily ballrooms and exhibition space, require a mix of power receptacle configurations in terms of voltage and amperage to allow flexibility in room usage, and may require the distribution of temporary power for major events. Specific function room requirements are elaborated in the individual room descriptions located in Section 3 of this manual. In general, these larger function room spaces should be equipped with power feeders to hook up temporary service to loads such as large lighting trusses/dimmer boards, rear- screen projection set-ups, multi-media productions, large sound amplification systems, arrays of computer set-ups for large scale training programs, exhibit set-ups, etc. These feeders can terminate in the service corridor with fused disconnects and welding-type connectors. Portable load Centers should also be specified for connection to the feeders. Provisions must be made to route temporary power cabling from the service corridor into the banquet space without going through doors.

7. Noted and will coordinate with interior designer and specialist designer such as AV specialist.

8. Each guestroom requires multiple outlets for lighting, small appliances such as the coffee maker, hair dryer, iron, mini bar, television, iHome and clock radio, in addition to the guest's laptop computer and other equipment which may be used concurrently. Coordinate power receptacle locations with the interior designer to eliminate visible cords and the need for multiple-gang adapters and extension cords. Provide an easily accessible outlet for guest ironing and housekeeping. These guestroom requirements are further elaborated in the individual room descriptions located in Section

8. Noted and will coordinate with interior designer.

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Item Design Brief ME49s Proposed 3 of this manual. 9. Design of lighting and lighting control systems for all public areas of a

hotel, including the hotel exterior, shall be done by a professional lighting designer (i.e., not a vendor or contractor). Preferred lighting fixture types and their applications are described in the individual room descriptions located in Section 3 of this manual. No quartz type lighting fixtures should be used for general lighting purposes. Exterior lighting and sign equipment should be activated by automatic systems. All decorative lighting fixture selections are to be made by the interior designer or the lighting designer, as appropriate, subject to LHI review and approval. LHI encourages the use of energy efficient lighting in all areas of a hotel property except where accent lighting is required. In hotel guestroom and public areas, where the use of compact fluorescent luminaries is determined to be appropriate to the interior design concept, bulbs must have a minimum color rendering index of 84 and, in switch applications, an instant-on type ballast. A warm color temperature of 2700K is required for all compact fluorescent lamps to emulate the color temperature of standard incandescent lighting. Task lighting shall be capable of producing a minimum of 30 foot-candles on the task being performed.

9. Noted and will coordinate with lighting designer for the provision of power circuiting.

10. Administrative offices and common areas accommodate multiple personal computers, fax machines, photocopy machines, etc. Neutral conductors feeding distribution panels and connected circuits to such distribution panels are to be over-sized.

10.Comply

11. Special provisions are required for certain computer equipment locations and other sensitive equipment such as the PBX switch in the Data Centre, file servers, point-of-sale system, and others. Step-down transformers feeding distribution panels serving the Data Centre and all other areas housing a substantial amount of electronic equipment are K-rated. Neutral conductors serving multiple electronic equipment loads are to be over-sized. The Property Management System file server and workstations, point-of-sale systems and workstations, and Building Management Control System processing panels require dedicated, "clean" power. Under no circumstances is metallic conduit be used for grounding or neutral conductors.

11.Comply

12. Size the distribution system and distribution panels with the following spare level capacities: Branch circuit panel boards: 25% Power distribution panels: 15% Main power panels: 15% Transformers and feeder circuits: 10%

12.Comply

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Item Design Brief ME49s Proposed EMERGENCY GENERATOR 1. A diesel engine-driven emergency generator must be provided that

automatically starts upon loss of normal power and connects to emergency loads through automatic transfer switches. The fuel should be stored in an aboveground storage tank with a fuel fill pipe terminating in a location convenient to fuel truck access. Fuel storage capacity is determined in large part by the utility's outage history, code requirements, and critical loadsnormally a minimum of 48 hours running at full load. Considerations for the location of the generator should include noise, vibration, exhaust emissions, and heat removal.

1. A minimum of 8 hours running at full load will be provided.

2. Size the generator to provide for safe evacuation of the building under emergency conditions. In addition, consider that some hotel functions must be sustained for extended periods during local or regional power outages when the building is not evacuated.

2. Comply

3. Critical loads connected to the emergency generator required for code compliance, security, life safety, loss prevention, and to maintain essential hotel operations include the following: Exit corridor emergency lighting Exit signs Exit stairwell lighting Emergency generator and main switchgear room lighting Front-of-house and back-of-house emergency lights Data Centre room lighting, receptacles and air conditioning; power

to UPS; UPS battery room lighting and ventilation Lighting and power in Fire Command Centre and SMART Aircraft warning lights Smoke exhaust systems where provided Exit stairwell pressurization systems where provided One elevator, with automatic switching, and manual override

for all elevators (must comply with applicable elevator codes) Complete fire detection and fire alarm system including security

alarms Complete emergency voice/tone communication system Power for electromagnetic door hold open devices where provided Electric fire and jockey pumps Flood pumps, sump pumps, sewer ejector pumps, and other

essential pumps to be defined by hotel operations One electric outlet in accessible guestrooms One Property Management System terminal at the front desk

and at each food and beverage outlet. Air compressor for dry pipe sprinkler system where provided

3. Comply

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Item Design Brief ME49s Proposed Heat trace for sprinkler piping where provided

All powered components of the fire suppression system

4. Where excess capacity exists, equipment desirable to sustaining building and hotel operations may also be supplied with emergency power including: Heating systems in colder climates Walk-in coolers and freezers Kitchen exhaust systems

4. Comply

5. Where non-essential loads are to be powered by the emergency generator, a full load calculation of such equipment shall be made. At no time should non-essential loads be permitted to impact generator performance while powering critical loads. Switching to non-essential loads should be automatic and based on selective prioritization. Where the cost/benefit can be justified, consider additional emergency power capacity to support basic hotel operations at remote properties that are subject to hurricanes and may be without power for several days, or where there is a history of power outages. Key operational functions include cooking facilities, the domestic water system, and limited lighting and power to guestrooms.

5. Not applicable

6. Conductors from the emergency generator and associated automatic transfer switches shall not be routed through the main electrical switchgear room or adjacent to normal service bus ducts so as to prevent consequent failure of the emergency distribution system caused by a major failure of any proximate normal distribution system component.

6. Not comply, emergency main distribution board including ATS is located at same room.

2.8 Fire Suppression System GENERAL REQUIREMENTS 1. All interior areas and covered exterior areas are to be fully sprinklered

unless specifically noted below. 1. Comply.

2. The sprinkler system is to be fed by two independent water connections equipped with suitable back-flow prevention devices. Where the municipal water supply is not reliable, a second on-site water supply shall be provided and, in areas prone to seismic activity, a second private on-site water supply is required.

2. Regulation in Thailand requires only one fire pump with hr water reserved, plus 50 cu.m of water reserved specifically for fire protection in roof tank. Other non reliable source such as water in swimming pool will also be connected to the system. However, we recommended 1 hr water reserved instead of hr as in regulation.

3. In high-rise hotels, the fire pump may be electric motor driven, depending upon local fire regulations. A jockey pump (not domestic water booster pumps) is used to maintain system pressure.

3. Comply, but we recommended using diesel engine driven fire pump instead of motor driven.

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Item Design Brief ME49s Proposed 4. Sprinkler system zones are limited to a single floor or a partial floor,

depending upon the number of sprinkler heads on the floor. 4. Comply.

5. LHI standards include the following unless specifically prohibited by the local authority: Provide quick-response residential sprinklers in guestrooms. Locate sprinkler heads in the linen chute and at the top and bottom

of elevator shafts. Equip the Data Centre room with pre-action systems to reduce the

risk of incidental activation. Provide parking garage areas and areas exposed to sub-freezing

conditions with an air-pressurized dry design system with proper piping pitches to ensure complete drainage.

Mount K-type hand held extinguishers near any deep fat fryer locations.

5. Comply.

6. Unless required by the local authority, LHI does not require the following areas to be sprinklered: Elevator machine rooms, main switchgear rooms, and transformer

rooms Manufactured walk-in refrigerators and freezers

6. Comply. Required by local authority. However,

pre-action sprinkler system will be used.

Required by local authority. Dry type

sprinkler heads will be used. 7. The following types of systems are not permitted:

Halon systems in new construction. Existing halon systems should be scheduled for replacement.

Total flooding CO2 systems unless mandated in writing by the local authority.

7. Comply.

8. Locate hand held portable fire extinguishers throughout the hotel as required by local codes. Coordinate the cabinet location and finish with the architect and interior designer.

8. Comply.

9. Consult with the local fire department for the location of standpipe and other system components: Standpipe hose cabinets in all exit stairways, on the roof, and at

other locations. Exterior standpipe connection at grade.

9. Comply.

10. Provide system capability to routinely test the fire pump at the most remote end of the standpipe system at 125% of full flow capacity.

10.Comply.

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Item Design Brief ME49s Proposed 2.9 Fire and Life-Safety System

GENERAL REQUIREMENTS 1. Provide state-of-the-art "point addressable" fire detection, alarm, and

control system connected to an integrated fire control panel in the Fire Command Room. The location of this room, usually at the hotel's front entrance or receiving area, should be confirmed with the local fire department. In addition, mimic the control panel in the SMART Centre.

1. Comply

2. The central fire control panel provides necessary communications and control functions to permit firefighters to monitor and control relevant building systems and direct building evacuation. Features of the control panel include: An alarm amplification and speaker system to provide live voice

instructions or pre-recorded instruction to any combination of zones (or all zones).

Elevator status indicators to monitor and control the elevators. Indicators to show the operating status of the emergency generator

and the fire pumps. Alarm to signal operation of the kitchen exhaust hood fire suppression

system.

2. Comply

3. Consult with the local fire department to determine whether a separate firefighters telephone communication system is required in exit stairways, elevators, or other locations.

3. Fire telephone jack will be required in fire stairs, fire elevator and exit routes as per local standard.

4. The guestroom alarm system includes the following elements: Hard-wired, two-station smoke detectors with integral audible and

visual strobe alerts in each guestroom. Activating a guestroom smoke detector results in a "pre-alert

condition for a definable time period, after which a zone alarm sounds. This pre-alert status activates only the individual guestroom's audible and visual alarms and sends the pre-alert signal to the central fire control panel in the Fire Command Room and the mimic panel in SMART. No other functions are initiated until the time delay period is over.

After the time delay, evacuation alarming is zoned by floors, generally including the alarm floor plus the floor above and the floor below. Unless otherwise required, authorized persons initiate building-wide evacuation only by key-operated switches at the central fire control panel and the mimic panel in SMART. Provide key-operated alarm abort switches in the same locations.

4. Visual strobe alert will be provided

only in disable guestroom. Comply Comply

5. Locate smoke detectors in all elevator lobbies, electrical and mechanical spaces, office areas, storage rooms, and in air-handling unit return air ducts.

5. Comply

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Item Design Brief ME49s Proposed 6. Provide manual pull-stations only at the front desk area, unless required in

other locations by the local authority. The pull-station alarm shall continue to activate until shut-off and reset with a key.

6. Comply and refer to local code

7. Install sprinkler zone flow switches at each control valve location to signal the central fire control panel (and mimic panel) of the activated zone. All suppression system isolation valves and sprinkler zone control valves are monitored with switches that transmit a "trouble" alert to the fire control panels when a valve is closed.

7. Comply

8. Provide fire alarm and voice communication systems in accordance with local code requirements and alarm speakers with integral visual strobe alerts in compliance with Disabled requirements.

8. Comply

9. The fire alarm and control system is required to "capture" elevators and return them to the designated "home" floor location or an alternative floor location if the home floor zone has an activated device.

9. Comply

10. Refer to local regulations for special smoke control and shaft pressurization requirements.

10.Comply

2.11 Vertical Transportation GENERAL REQUIREMENTS 1. A professional elevator consultant is required to design the vertical

transportation for hotel guestroom towers, multiple public area levels, or other special areas.

1. Noted

2. In general, provide at least two public elevators for each 100 guestrooms with a minimum of two regardless of the room count. Operating criteria include: Passenger elevator service waiting time and handling capacity.

Langham Place requires an elevator design that accommodates 1.5 people per room in a business hotel and 2 people per room in a resort at 100% occupancy in a 5-minute peak period.

The average interval between elevator departures from a floor during a heavy-traffic period average waiting time should not exceed 40 seconds.

2. Refer to specific design control document dated 12-11-2009 for Phayathai Project.

3. Service and freight elevator-operating criteria: Provide one service elevator for every 200 guestrooms with a

minimum of two regardless of the room count. Provide one or more additional freight elevators to serve the kitchen,

receiving dock, and function space. Capacity and speed is based on special criteria such as the requirement to move exhibition materials or serve large banquets.

3. Refer to specific design control document dated 12-11-2009 for Phayathai Project.

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Item Design Brief ME49s Proposed 4. Escalators are required where high traffic areas such as a large ballroom

or other function spaces are located on floors other than the ground level or where the movement of people between floors might have a negative impact on passenger elevator service.

4. Will coordinate with Architect designer.

GUEST ELEVATOR DESIGN 1. The public elevator core should be centrally located to the guestrooms

and indirectly visible from the registration area. All guestroom elevators require electronic card readers for controlled key card access to reach guestroom floors.

1. Comply

2. The elevator control system shall be a microprocessor-based, non- proprietary system.

2. Comply

3. The maximum size is a 1,600 kg passenger car with clear optimum interior dimensions of 1,800 wide x 1,500 deep x 2,500 high (architect/interior designer to dictate).

3. Comply, the selection will be based on performance traffic calculation.

4. Provide variable voltage, variable frequency drive traction elevators. Guestroom elevators cannot be hydraulic design unless noted in low-rise structures up to five (5) stories and provided they meet waiting time/interval criteria as noted elsewhere in these standards.

4. Comply

5. The speed of the guestroom elevators should not be less than 2.5m/s for low rise buildings and up to 4m/s for high rise buildings. For skyscrapers (buildings exceeding 40 storeys) higher speed shall be considered.

5. Comply, the selection will be based on performance traffic calculation.

6. Provide a minimum 1m wide centre opening door with a 2.25m door

opening. Provide a heavy-duty high-speed door operator. 6. Comply

7. Lift car and door interior finishes, lightings, etc, shall be recommended and determined by the interior designer. Indicative finishes of various demands are: Floors: Hard surface flooring such as natural stone, wood and

normally as an extension of the lobby finishes. Wall Base: Wood or natural stone compatible with the floor finish. Walls: Wood paneling, mirrors, metal panels and similar durable

finishes. Wall vinyl is not acceptable. Provide a hand rail on at least the back wall of the cab.

Ceiling: Wood, mirror or metal panels with recessed low voltage down lights as designed by the interior designer / lighting consultant.

7. Noted

8. Provide the following elevator lobby fixtures: Call Buttons: Stainless steel or bronze finish as determined by the

interior designer. The faceplate should incorporate emergency signage, the Phase I fire service key switch, and fireman's phone jacks when required.

Hall Lanterns: Manufacturer's standard with approved chimes for persons with a disability.

8. Comply

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Item Design Brief ME49s Proposed Hall Position Indicators: Required at the main lobby terminal visible

from all car locations. Fire Service/Security Panel: As required by local code.

9. Car Operating Panels: Langham Place prefers two complete control panels (one on each side of door) in stainless steel or bronze finish to match cab front and car doors and as determined by interior design concept. Layout and nomenclature of the car operating panels shall be reviewed and approved by LHI Project Team.

9. Noted

10. Additional features to be determined for each hotel include: Related emergency features (e.g. fire service, emergency lighting and

power, etc.). Wiring for card readers for restricting access to specific floors. "Hands free" emergency telecom unit. Car position indicator, convenience outlet, and certificate frame. Fire control and/or security panels. Automatic self-leveling to bring the car level with the floor landing plus

or minus 60mm (1/4") regardless of load or direction of travel. An emergency stop switch located in the pit. Anti-nuisance device that correlates passenger loading with the

number of car calls registered. Light ray and retractable safety shoe (or any other appropriate safety

devices) which, when interrupted, will cause closing doors to stop and re-open.

An air-conditioning unit (cooling & heating) appropriate for installation in lift car. The design temperature in the lift car shall not exceed that of the lift lobby by more than 1C.

A speaker for background music and the emergency annunciation system.

CCTV connected to security system.

10. Comply

SERVICE, FREIGHT AND OVERSIZE ELEVATOR DESIGN 1. The service elevators are separated from the main back-of-house service

corridor by a vestibule. 1. Note and will coordinated with

Architectural designer. 2. Provide microprocessor-based elevator control. 2. Comply 3. Size: minimum 2,000 kg hospital configuration (or as required by special

usage). Capacity and size for freight elevators are determined by specific project requirements for exhibits or oversize equipment.

3. Comply

4. Clear cab interior dimensions: 1.7m wide x 2.2m deep x 2.7m high minimum.

4. Comply

5. Speed: Minimum 2.0m/s for low to medium rise Minimum 2.5m/s for high rise

5. Comply

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Item Design Brief ME49s Proposed 6. Door Size: 1.2m, two speed, side opening, 2.25m to 2.4m high unless

special conditions exist. 6. Comply

7. Provide the following hoist way door finishes: Doors and Frames: Brushed stainless steel Threshold: Aluminum

7. Comply

8. Provide the following hall fixtures: Call Buttons: Vandal resistant design with stainless steel finish. Hall Lantern: Manufacturer's standard. Hall Position Indicator: None required. Fire Service/Security Panel: As required

8. Comply

9. Provide the following service elevator cab finishes: Car Operating Panel: Vandal resistant fixture, one in each car with all

necessary operating buttons, service cabinet, phone cabinet, position indicator and necessary verbiage engraved. Finish is brushed stainless steel. Cab front and cab doors finish to match car-operating panels.

Cab Design: Side and rear walls are manufactured with 14 gauge 5WL rigid stainless steel. Top is 12-gauge furniture steel with white reflective finish. Cab also includes two rows of solid oak bumper rails on side and rear walls, resilient rubber tile or stainless steel or aluminum checker plate floor, and recessed vandal resistant fluorescent lighting.

9. Comply

10. Provide these additional features: A central status monitoring system with CRT terminals in the

Engineering office and SMART space. Related emergency features such as fire service, emergency lighting

and power. Hands free emergency phone. If hydraulic elevators are used, the cylinders are protected with a

sealed PVC outer casing. Special usage equipment may require additional features or

modifications to the above.

10. Comply

ESCALATOR DESIGN 1. General criteria for escalators include:

Tread width: Minimum 90cm; prefer 100cm. Speed: 0.5m/s. Finishes: As selected by interior designer. Provide glass balustrades

for freestanding units. Vertical Rise: Not to exceed 6m.

Maximum Angle: 30

1. Comply

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Item Design Brief ME49s Proposed 2.12 Linen Chute

MECHANICAL/PLUMBING 1. Provide fire sprinklers for the linen chute where required. 1. Comply POWER/DATA/TELEPHONE 1. Provide an electric interlock so that when one intake is in use, the

electronic interlock prevents doors on other levels from being opened 1. By linen specialist

2.14 Low Voltage System GENERAL REQUIREMENTS 1. Provide a low voltage building infrastructure that will facilitate fully

operational hotel property management systems and function area connectivity. The current Langham Place standard is a 25-year AMP Net Connect System. The low voltage infrastructure system generally comprises the following subsystems: Voice, Data, MATV, and CCTV (CCTV subsystem requirements are described in the Security Systems section of these standards). The low voltage infrastructure contractor is responsible for the low voltage cabling, patch panels, voice/data racks, voice/data jack components, TV jack components, and termination. Portable equipment such as workstations, servers, printers, and room enclosures are provided by others.

1. Comply

2. LHIs IT Department provides design standards and technical design input to the infrastructure designer and assistance in the selection of the low voltage contractor. It is recommended that the low voltage contractors work be part of the general contract for a new build or major renovation project.

2. Note

3. The cabling standard for low voltage system infrastructure is an Enhanced Category 5e. A single 6-strand Multi-mode fibre connects all Intermediate Distribution Frames (IDFs) to the Main Distribution Frame (MDF). LHI IT recommends vertical distribution of fiber cable to IDF locations within the hotel structure and horizontal distribution of Enhanced Category 5e cabling (or better) to cable connection locations.

3. Comply

4. All vital hotel infrastructure systems originate in the hotel Data Centre Room. This room houses the data and telephone infrastructure, the PBX telephone switch, and hotel technology servers. Intermediate Distribution Frames (IDFs) located in the Data Centre Room contain a rack for the hubs, switches, and UPS.

4. Comply

COMPUTER TECHNOLOGY 1. LHI requires all properties to install an integrated property system (IPS)

enabled property management system (PMS). The IPS is the platform for connecting the property-level computer systems, the PMS, with the worldwide portfolio of systems. The PMS combines industry standard

1. Note

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Item Design Brief ME49s Proposed hardware with proprietary software to manage components for the hotel

operations.

2. Langham Place Hotels utilize identified computer systems that include modules for the reservation/front office (PMS), food and beverage point of sales (POS), sales and catering, revenue management (RMS), guest response and defect tracking, facility maintenance, electronic keys, and back-of-house accounting. Each module covers specific operational functions. For example, the reservation/front office module handles check-in, folios, guest history, and accounts receivable. The PMS also provides interface with other property-level systems such as the PBX switch.

2. Note

3. Latest version of Windows is the primary network operating system. Provide all servers in a single domain.

3. Note

4. Provide equipment and cable connection locations for IPS and PMS according to the Information Technology (IT) Matrix provided by LHI IT. This IT Matrix describes projected system users by group and identifies the type of equipment and its location and power requirements.

4. Comply

5. LHI has a strategic relationship for the installation, management, and repair of the wide area network (WAN) equipment in all hotels. Contact the service provider identified by LHI IT to coordinate WAN requirements.

5. Note

6. Provide a CAT5e data drop for each employee time clock throughout the hotel.

6. Comply

TELECOMMUNICATION TECHNOLOGY 1. Hotel telecommunication requirements include the hotel telephone, voice

mail, and call accounting systems. 1. Comply

2. Telephone consoles that display the name of the guest who is calling are required at such guest contact areas as SMART, the front desk, and restaurants.

2. Comply

3. Telecommunication cabling is required throughout the hotel including guestrooms, administrative, and function areas.

3. Comply

4. Internet protocol telephone for all areas is recommended. 4. Comply GUESTROOM TECHNOLOGY 1. Information regarding the electronic guestroom door locking system is

covered in Section 2.17. 1. Comply

2. Guestroom entertainment service includes cable television service and additional, in most locations, Movie on Demand selections.

2. Comply

3. A master antenna signal distribution system (MATV) is required to receive, process, convert, amplify, and distribute broadband VHF, UHF and cable TV signals to all guestrooms and other locations (e.g. suite parlours, fitness centre, hotel bar, Club L, training room, engineering control room, SMART control room and all function rooms) determined by LHI IT. The MATV system installation shall conform to the specifications of the

3. Comply

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Item Design Brief ME49s Proposed guestroom entertainment system provider-of-choice of Langham Place. 4. Locate the television video rack equipment in the Video Rack Room

located adjacent to the Data Centre. This room is best located away from any sound equipment to avoid potential signal interference. The door to this room is equipped with an electronic card key lock for use by the in-room entertainment system provider.

4. Comply

5. The wireless internet infrastructure requires a certified site survey will. Consult with LHI IT to determine property requirements for broadband high-speed internet access for all guestrooms, meeting and public space locations.

5. Comply

SPECIAL CONSTRUCTION 1. No data copper runs are to exceed 90m. 1. Comply 2. Termination points, customized to the propertys physical layout, must be

clearly labeled by destination, source, and patch panel. 2. Comply

3. The riser system shall be configured with at least 30% spare capacity for voice.

3. Comply

4. The riser system includes one 12-strand multi-mode fiber from each of the Intermediate Distribution Frame (IDF) locations to the Data Centre.

4. Comply

5. Provide trunk cables of RG-11 coaxial cable with at least 89dB of shielding to the roof for satellite dish access.

5. Comply

6. Provide a 120V AC outlet at each designated amplifier location. 6. 220V AC will be provided. 7. Provide dedicated patch cables from the telephone company demarcation

point to the Video Rack (MATV) room. These lines are un-terminated and labeled with 7.6m of excess cable on each end.

7. Comply

2.15 Security System GENERAL REQUIREMENTS 1. Hotel location and physical layout are critical to determining hotel security

system requirements. 1. Comply

2. Security alarm, paging, and camera systems (CCTV) shall be monitored in the SMART and/or Security Office room.

2. Comply

SECURITY ALARM SYSTEM 1. Provide a hotel security alarm system with the capability to be monitored

24-hours a day by trained hotel associates. 1. Comply

2. Locate a silent duress alarm switch at the following minimum locations: General Cashier office Director of Human Resource office Concierge stations that are remote from the main lobby

2. Comply

3. Silent duress alarm switches shall activate an audible alert and a visual alert on a main control panel in the SMART Room and the Security Office

3. Comply

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Item Design Brief ME49s Proposed 4. Perimeter fire exit doors and other exterior doors that are not normally

used shall be equipped with door contact alarms that release following 30 seconds of applied pressure or on activation of the fire alarm system. Alarms will be transmitted to the SMART Room. Locate supplemental duress alarms, motion detectors, and door contacts as may be required by the hotel location and layout.

4. Comply

RADIO & PAGING SYSTEM 1. Provide a communication and pager system, without dead spots, for

routine communication among hotel associates. A base station and repeater antenna system is needed to support two-way FM radio communication and a pager system.

1. Comply

2. Provide radio base stations in the: Security office SMART Room Maintenance office

2. Comply

3. Provide a charger rack for the communication and pager system in the SMART Room.

3. Comply

CCTV SYSTEM 1. Provide a closed-circuit security camera system (CCTV) for continuous 24-

hour monitoring of the property. LHI IT will provide a list of acceptable camera system manufacturers.

1. Comply

2. Locate the camera control system and video capture and digital recording system with time lapse recording capability in the SMART Rooms.

2. Comply

3. Provide color cameras and monitors for the CCTV system. Where appropriate, cameras feature pan, tilt, and zoom capabilities. Certain cameras, such as those at the receiving dock and parking facilities, require lenses suitable for low light levels. Motion sensors control the transmission from certain cameras such as at the hotel parking entry vestibule.

3. Comply

4. Coordinate dome enclosures at fixed camera locations with the interior design.

4. Comply

5. Provide a video capture and digital recording system (preferable internet protocol type with WAN capability) with time lapse recording capability.

5. Comply

6. Provide CCTV security cameras at the following locations as a minimum: Perimeter fire exit doors and low-use perimeter doors Loading dock Associate entrance Registration pods Public elevator lobby Count room (cash drop deposit boxes) Parking facility entry vestibules

6. Comply

26 of 47

Item Design Brief ME49s Proposed Guest safe deposit boxes (boxes only)

Data Room Escalators Receiving dock and parking facilities

7. Provide a CCTV camera at each door equipped with an electromagnetic hold-open device and display the image in the SMART room when the door switch is activated.

7. Comply

3.2 Standard Guestroom MECHANICAL/PLUMBING 1. Provide a remote thermostat for the heating, ventilating, and air

conditioning (HVAC) system in the bedroom area, preferably on the bathroom-demising wall, easily accessible and visible to hotel guest.

1. Comply, Cooling only

2. Position the vertical fan coil supply grille so that it neither interferes with the window treatment nor blows across the head of the bed.

2. Comply

3. Where fan coil units are used, the Noise Coefficient (NC) is not to exceed 30NC at low speed, 35NC at medium speed, and 45NC at high speed.

3. Comply

4. The finish of any HVAC grilles and access panels must be color coordinated with the guestroom interior design.

4. Comply

5. No exposed piping is permitted within a guestroom. 5. Comply. POWER/DATA/TELEPHONE 1. Provide a sufficient number of power/data/telephone receptacles and wall

switches coordinated with the guestroom-furnishing plan so that electrical cords are concealed from guest view. Provide a duplex CAT5e electrical outlet for the refreshment centre that is typically located within the guestroom console unit. Alternatively provide a frequency-coordinated splitter from an existing cable TV location for this purpose.

1. Comply and according to Interior design

2. Provide at least one easily accessible convenience outlet for cleaning by room attendants and for ironing by guests, generally in the bedroom area.


3. Provide two telephone jacks, one at the bedside and the other at the desk work area, with two lines to allow the guest to talk on the telephone while simultaneously checking e-mail. Provide high-speed internet access broadband solution in 100% of guestroom, either wired or wireless. Preferred data outlet at desk is a quad outlet with 2 - line internet protocol phone, CAT5e 1 line analogue fax and a CAT5e data port. Locate the quad above the desk surface level. Locate power for laptops in built-in "pop-up" receptacle in desk or return


4. Provide television jack and outlet for (minimum) 37 Plasma or LCD flat-screen television. Confirm latest television brand standard with LHI Operations.


5. Provide outlet for DVD player. 5. Comply and according to Interior

design

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Item Design Brief ME49s Proposed 6. Provide outlet for iHome (located on the nightstand). 6. Comply and according to Interior

design 7. Provide one smoke detector per guestroom, two-station hard-wired that

sounds a local alarm in the guestroom and is annunciated at the Fire Command Centre and at the SMART Command Centre. This unit is to provide a trouble indication if the detector is removed or is not reporting.


8. Offset outlet boxes a minimum of 150mm and separate with a stud to avoid back-to-back power, data, or telephone outlets.


9. Each light fixture is UL-rated and labeled and certified for the wattage that will be carried. Verify that the light fixture, lampshade, saddle, harp, socket, and power rating are compatible.

9. Light fixture spec will be according to Interior design.

10. Provide a variety of guestroom lighting sources: foyer wall sconce or downlight, bedside sconces or nightstand lamps, desk lamp, and floor lamp. Provide the following minimum light levels (measured at the task being performed): Foyer illumination: 10 FC from downlight with halogen or wall sconce

with CFL (32W+) Bedside task lighting: 30 FC from nightstand lamp with CFL (32W+) Desk work surface task lighting: 50 FC from desk lamp with CFL

(32W+) Lounge chair task lighting: 30 FC from floor lamp with CFL (32W+) Closet: 10 FC. Provide a separate light fixture in the closet if the entry

lighting does not provide the required illumination in the closet.


11. When compact fluorescent light fixtures are used, bulbs must have a minimum 30W rating, a high color rendering index, and an instant-on type ballast. A warm color temperature of 2700K is required for all compact fluorescent lamps.


12. All 3-way incandescent rated lamps shall have 3-way light bulb installed in them.


13. All ceiling mounted lights / light fixtures to be dimmable. 13. Comply and according to Interior design

3.3 Standard Guest Bathroom MECHANICAL/PLUMBING 1. The bath is a minimum 1,500mm long x 800mm wide, enameled cast iron

with a non-slip bottom. Plastic, acrylic and fiberglass tubs or showers are not acceptable.

1. By architect/interior designer.

2. Tub and vanity fixtures have overflow outlets and pop-up type waste stoppers.


3. The sink is vitreous china or enameled cast iron. The faucets are 200mm on Centre, style selected by the interior designer.


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Item Design Brief ME49s Proposed 4. The toilet is a floor mounted vitreous china tank type with an elongated

bowl. The seat is to have a closed front and a lid. The seat and lid must remain in an upright position without being held. A fully compartmentalized toilet is desirable.


5. The Bathworks Shower uses rainshower type shower head connected to a common manifold and requires water pressure of between 50 and 60 PSI. The shower control is a single-handle, pressure-balanced mixing valve rated for high flow.

5. In Thailand, they usually use main and branch piping system, not the manifold. Note that 50-60 PSI pressure requirement causes the system having PRV in every floor. We recommend installing 50 PSI system to reduce the damage done to other sanitary fixtures.

6. The Bathworks Bath specifications require the faucet to be positioned in the middle of (one of the long sides of) the bath and not at one end.


7. The bathroom exhaust fan is to have noise rating not to exceed 45NC. 7. Comply POWER/DATA/TELEPHONE 1. Provide at least one ground fault interceptor (GFI) duplex outlet above the

lavatory counter in the bathroom. This receptacle shall have a dedicated circuit to accommodate an 1800+ watt hair dryer without tripping the circuit breaker. Provide a separate hardwired illuminated make-up mirror on the wall adjacent to the vanity.


2. Each light fixture is UL-rated and certified for the wattage that will be carried

2. Light fixture spec will be according to Interior design

3. Illuminate the guest bathroom using a combination of downlights and two pendant fixtures or wall sconces at each side of the mirror. Provide the following minimum light levels (measured at the task): General illumination: 30 FC from downlight with CFL (32W+) Bathtub: 10 FC from downlight with CFL (32W+) Vanity mirror: 50 FC from pendants or sconces with CFL (32W+)


4. One telephone jack for an analogue telephone 4. Comply and according to Interior design

3.4 Guest Suites MECHANICAL/PLUMBING (same as standard guestroom and bathroom or

better)

1. Provide an underhung stainless steel bar sink with decorative gooseneck faucet at the pantry.


2. Provide typical HVAC module fan-coil systems in suites; install a single control where more than one unit is used in a multi-bay space.

2. Comply

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Item Design Brief ME49s Proposed POWER/DATA/TELEPHONE (same as standard guestroom and bathroom

or better)

1. The interior designer is responsible to select all general lighting (recessed downlights, wall washers) and decorative lighting (chandeliers, sconces).


2. Provide a secondary light source in the ceiling away from the vanity in all suite bathrooms over 5 SQM in area.


3. Provide throughout the Meeting Suite a minimum illumination level of 10 FC, measured at the floor.


4. Provide decorative lamps and light fixtures throughout each suite to give a minimum 30 FC at the desk, dining table, and soft seating areas.


5. Provide a wall sconce, surface mounted ceiling fixture, or recessed downlight in each suite entry, controlled by a switch at the entry door.


6. Provide an easily accessible convenience outlet in the parlour or meeting area for use by housekeeping.


7. Provide a GFI outlet at each wet bar or pantry location. 7. Comply 8. In each luxury suite parlour, provide a television jack and electrical

receptacle for a wall-mounted 42 Plasma or LCD screen television. Coordinate placement and height with the interior designer. (The suite bedroom has the standard 37 Plasma or LCD television.)


9. Provide television jack and electrical receptacle for in mirror television in bathroom.


10. Provide two IP Phones with message warning lights in each suite parlour. One telephone must have a built-in data port; one should be cordless.

10. Comply

11. Provide a wall-mounted telephone in the pantry. 11. Comply and according to Interior design

12. Provide stereophonic Bose stereos (or equivalent standard), premium guest suites according to market requirements. The stereo system speakers should be connected to all bays with independent volume controls in each bay.


3.5 Accessible Guestrooms and Suites MECHANICAL/PLUMBING (SAME AS STANDARD GUESTROOM OR

BETTER)

1. Locate controls, such as the thermostat, on an accessible route, within the required reach range, capable of being operated with a closed fist (e.g. toggle switch or push button); twist knobs are not acceptable.

1. Comply, for further coordination with Interior Design

2. The height to the top of the toilet seat is 430mm above the floor. The centerline of the toilet must be located exactly 457mm from the finished wall. The flush mechanism must be on the open (approach) side of the toilet.


3. Provide seating in tubs and showers as required. Note that seats in showers must be located so that a seated person may operate the


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Item Design Brief ME49s Proposed controls. 4. Provide a hand-held shower wand on an adjustable slide bar at least

760cm long and mounted no lower than 600mm above the tub or shower floor. Shower units must be removable from the bar and have a minimum 1,500mm-long hose.


5. Mount the mirror so that the bottom edge is no higher than 1,000mm AFF. 5. By architect/interior designer. POWER/DATA/TELEPHONE 1. Locate switches and outlets within the required reach range and of a

design that guests can operate with a closed fist. Handles, pulls, latches, locks and other operating devices shall have a shape that is easy to grasp with one hand and does not require tight grasping or twisting of the wrist to operate. Lever operated mechanisms, push-type mechanisms, and U-shaped handles are acceptable designs.


2. Locate receptacles for guest use on an accessible route and within the required reach range. Provide an accessible outlet within 1,200mm of the phone for use with a TDD.


3. Provide phones with a volume control and a light to indicate incoming calls. 3. Comply and according to Interior design

3.6 Club L MECHANICAL/PLUMBING (same as standard guestroom or better) 1. Provide a single thermostat to control the multiple heating, ventilating, and

air conditioning (HVAC) units throughout the space. 1. Comply

POWER/DATA/TELEPHONE (same as standard guestroom or better) 1. Provide house and credit card phones; also provide a telephone and data

port outlet at the work desks and at other locations where guests might use a laptop computer.


2. Provide a minimum general illumination of 10 FC throughout Club L, measured at the floor.


3. Provide decorative lamps or other lighting throughout the Club L to assure 30 FC at lounge seating, work areas, and the buffet.


4. Provide power as required for fax/copier/printer and personal computer equipment.


5. Provide internet access points for internet station. 5. Comply 6. Provide power as required in the pantry and at the buffet for specified

equipment. 6. Comply and according to Interior

design 7. Provide a sufficient number of wall and floor outlets, coordinated with

furniture plans, so that electrical cords are concealed from guest view. 7. Comply and according to Interior

design 8. Provide easily accessible convenience outlets for use by room attendants

when cleaning the room. 8. Comply and according to Interior

design 9. Provide GFI outlets at the buffet, in the powder room, and at the pantry. 9. Comply and according to Interior

design

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Item Design Brief ME49s Proposed 10. Provide system-connected smoke detectors that sound a local alarm and

are annunciated at the Fire Command Centre and at SMART. Each unit is to provide a trouble indication, if the detector is removed or not reporting.

10. Comply

3.7 Guestroom Corridor and Elevator Lobby MECHANICAL/PLUMBING (N/A) POWER/DATA/TELEPHONE 1. Select decorative wall sconces or ceiling mounted fixtures with CFL

lamping to provide a minimum lighting level of 20 FC measured at 1,500mm AFF at each guestroom entry door. Recommended general corridor lighting level is 15 FC with no dark spots. Minimum illumination level is 5 FC.


2. Provide recessed down lights, decorative fixtures, or a combination of both in the elevator lobby.


3. Provide electrical outlets every 12m in the corridor for housekeeping purposes.


4. Provide one (1) house telephone outlet and one (1) duplex electrical outlet at the console table in each elevator lobby.


3.8 Ice Machine Alcove MECHANICAL/PLUMBING 1. Locate the floor drain for the ice machine condensate out of the guest

walk area. 1. Comply

2. Provide a cold-water shutoff valve at each ice machine. 2. Comply 3. Mechanically exhaust the area to remove heat from the equipment. 3. Comply 4. For water-cooled ice machines, provide a separate condenser water

system that consists of constant volume pumps and a closed circuit cooling tower.

4. Proposed to use evaporative coils

POWER/DATA/TELEPHONE 1. Provide fluorescent lighting to give a minimum of 20 FC at floor level.

Lighting is on an unswitched circuit or controlled by a motion detector. 1. Comply and according to Interior

design 2. Provide a GFI electrical outlet for each piece of equipment. 2. Comply

3.9 Guestroom Level Electrical and Telephone Closets MECHANICAL/PLUMBING 1. Provide ventilation in the rooms to maintain room temperatures within

acceptable limits for equipment specifications. 1. Comply

POWER/DATA/TELEPHONE 1. Provide lighting to maintain 25 FC at 1,500mm AFF. 1. Comply and according to Interior

design 2. Provide each standard guestroom and each guest bathroom with its own

20A, 120V / 240V circuit (separate circuits). Confirm that the hair dryer and coffee maker are on separate circuits.


userHighlight

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Item Design Brief ME49s Proposed 3. Provide individual circuits for service appliances and mechanical

equipment with loads over 900W. 3. Comply

4.1 Porte Cochere MECHANICAL/PLUMBING 1. Where dictated by market and climate, integrate radiant heating units into

the porte cochere ceiling design. 1. N/A

POWER/DATA/TELEPHONE 1. The minimum lighting level under the porte cochere is 30 FC at ground

level utilizing decorative or downlight fixtures. 1. Comply and according to Interior

design 2. Provide power, data, and telephone for the valet pod and cashier window

locations. 2. Comply and according to Interior

design 3. Provide a professional quality background music zone (music provided by

LHI approved music vendor) within the porte cochere area. Locate speakers so sound is apparent to arriving guests. Locate speakers discreetly to tie into the exterior architectural concept.


4.2 Lobby MECHANICAL/PLUMBING (N/A) POWER/DATA/TELEPHONE 1. Requirements for the lobby ATM include a 15" minimum size colour

screen, a thermal printer, smart card and magnetic stripe reader. The ATM is to be secured to the wall or floor and is front-loaded.


2. Provide floor electrical, data, and telephone outlets for seating areas and for pod stations. Coordinate outlet locations carefully with the interior design furniture layout. House phones are distributed throughout the lobby.


3. Coordinate the location of electronic information screens with the interior and electrical design

Design Control Document-MVAC

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