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Glass &Windows Selection

Hotels ,Motels ,Design Criteria, Guestrooms

Guest Rooms

Guest Room heating and cooling units shall be fan coil type. Self contained terminal air conditioning units or heat pumps may not be used.

If horizontal concealed fan coil units are used, they shall be located over the foyer ceiling, with filter access doors as return grills.

If vertically stacked fan coil units are used, air outlets shall be located so as not to cause drafts and to minimise sound levels at the bed location.

The fan coil units shall be sized to maintain desired room temperature at no higher than medium speed.

Individual Guest Room thermostats shall be provided. The thermostat shall be a combination heating cooling type with colour coded graduated temperature adjustment, on off switch and multiple 3 speed fan control.

Thermostat shall be adjustable through 5oK by the guest. Control valves shall be two way type. The thermostat shall throttle the control valve only; fan control is not acceptable. Isolation of the fan (off position) will disable the thermostat and drive control valves closed.

A minimum of fifty (50) cfm must be exhausted from each bathroom. Door grills in bathroom doors are not acceptable. Undercut door to achieve free air space for toilet exhaust air.

Room ambient design conditions:

Heating: 22oC, dry bulb

Cooling: 24oC, dry bulb, 55 percent R.H.

Fresh air make up shall be introduced to the Guest Room fan coil units ducted directly into the Guest Room. Ducts shall be fitted with fire dampers where they penetrate walls, or otherwise suitably designed to prevent smoke ingression in the event of fire.

All fan coil units shall have (min.) 25mm filters (disposable or washable type) on the intake side of the coil(s).

Ensure that condensate pipes are correctly graded to fall and are fully insulated.

Provide cut off switch to FCU from balcony door or windows, to isolate cooling/heating valve when opened.

Fan coil unit is to be accessible through a hinged access panel secured by budget locks. Opening to give unobstructed access to isolation valves, drains and controls.

Supply and return grills shall be aluminium and finished as required by the Architect or Interior Designer, Supply grills are to be double deflection type. Return air grills to be hinged with filter fixed in slide rail for maintenance.

Fan coil units shall include the following:

Centrifugal fan, direct drive.

Motor, three speed permanent split capacitor type with oil cups and overload protection.
Water coil, copper tubes/aluminium fins, three rows minimum. Use two coils or double circuit type for 4 pipe system. Include drain and vent connections integral with coil.

Include primary and auxiliary insulated drain pans. Drain pans shall be coated on the inside to prevent leakage and corrosion.

Unit casing shall be insulated with 15mm heavy density glass fibre, 18 gauge steel bonded and baked enamel finish (where finished cabinet is used).

Units shall be UL listed.

Unit sound pressure levels shall not exceed an NC 35 curve in all octave bands at medium speed.

Thermostats shall control modulating valves and not fan motor.

Self contained terminal air conditioning units or heat pumps shall include:

Centrifugal evaporator and condenser fans, direct connected.

Motor, three speed permanent split capacitor type with oilers.

Condenser and evaporator coils, electric heating element or hot water coil.

Hermetic compressor.

Unit casing shall be 18 gauge steel top and sides, 16 gauge steel base zinc coated phosphatised and finished in enamel.

Discharge grill, four way adjustable.

Aluminium outdoor air louvre with adjustable damper. Aluminium shall be clear anodised, 1 hour in accordance with Alcoa Spec. 215R1.

Integral temperature and fan speed control.

Sizing: Base peak cooling loads for selection of guestroom fan coil units on peak exterior loading with sheers closed, two people per room and 250 watts per room electric load. Select capacity of fan coil unit to maintain room thermostat setting at medium fan speed. • Supply Air: Quantity equals 102 m3/hr (60 cfm) per
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