Request for proposal contract form for the transit industry
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- Controls for the Climate Control System (CCS)
- Driver’s Compartment Requirements
- Driver’s Cooling
- Air Filtration
- Roof Ventilators
Driver’s AreaThe bus interior climate control system shall deliver at least 100 cfm of air to the driver’s area when operating in the ventilating and cooling modes. Adjustable nozzles shall permit variable distribution or shutdown of the airflow. Airflow in the heating mode shall be reduced proportionally to the reduction of airflow into the passenger area. The windshield defroster unit shall meet the requirements of SAE Recommended Practice J382, “Windshield Defrosting Systems Performance Requirements,” and shall have the capability of diverting heated air to the driver’s feet and legs. The defroster or interior climate control system shall maintain visibility through the driver’s side window. Controls for the Climate Control System (CCS)The controls for thedriver’s compartment for heating, ventilation and cooling systems shall be integrated and shall meet the following requirements:
Driver’s Compartment RequirementsA separate heating, ventilation and defroster system for the driver’s area shall be provided and shall be controlled by the driver. The system shall meet the following requirements:
A ventilation system shall be provided to ensure driver comfort and shall be capable of providing fresh air in both the foot and head areas. Vents shall be controllable by the driver from the normal driving position. Decals shall be provided, indicating “operating instructions” and “open” and “closed” positions. When closed, vents shall be sealed to prevent the migration of water or air into the bus. Driver’s CoolingDefault No dedicated evaporator. Alternative Separate Dedicated Evaporator Using a separate, dedicated evaporator, the climate control system shall be designed to maintain the driver’s compartment temperatures within the range specified for the passenger compartment. The unit shall operate when the climate control switch is in the “Cool” position. It shall have a separate thermostatic control.
A separate fan unit shall provide 100 cfm of air to the driver’s area through directionally adjustable nozzles and an infinitely variable fan control, both of which shall be located above and ahead of the driver. Alternative Air from the evaporator shall be provided to the driver’s area through vents located on the dash in front of the driver. Alternative Driver’s booster blower. Air FiltrationAir shall be filtered before entering the AC system and being discharged into the passenger compartment. The filter shall meet the ANSI/ASHRAE 52.1 requirement for 5 percent or better atmospheric dust spot efficiency, 50 percent weight arrestance, and a minimum dust holding capacity of 120 g per 1000 cfm cell. Air filters shall be easily removable for service. Default Cleanable Filters Air filters shall be cleanable.
Disposable Type Filters Air filters shall be of disposable type.
Other Type Filters Air filters shall be [insert type of air filters].
One Roof Ventilator One ventilator shall be provided in the roof of the bus.
Two Roof Ventilators Two roof ventilators shall be provided in the roof of the bus, one approximately over or just forward of the front axle and the other approximately over the rear axle.
Three Roof Ventilators (Used in articulated buses.)
An electronically controlled hatch shall be installed. Alternative A tool shall be provided to manually open and close the hatch. Directory: resources resources -> General text for tender (recommendations) for Pilkington Profilit™ Contents Page resources -> North Carolina Inclusion Initiative Mapping Where Children with ieps are Being Served Purpose resources -> Practice learning resources -> The Rise of Video Games Section “Word” Matt Spencer resources -> Request for Proposal [insert date] resources -> The University of York 13th 16th April 2004 resources -> Biological and Biomedical Sciences Program Community Education Initiative resources -> Region III standing regional response team (rrt) meeting williamsburg, Virginia Thursday, January 12, 2012 resources -> Efca eastern District and TouchGlobal, the crisis response ministry of efca resources -> World Map 4 (1)-Global Warming Download 1.87 Mb. Share with your friends:
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