GUIDE SPECIFICATIONS • MQL

Guide Specifications

Blower Coil Unit

HVAC Guide Specifications - Section 15XXX

Size Range: 600 – 10,000 CFM

ENVIRO-TEC®Model Number: MQL

Part 1 — General

1.01SYSTEM DESCRIPTION

A.Indoor mounted blower coil unit designed to provide air to a conditioned space as required to meet specified performance requirements for ventilation, heating, cooling, filtration and air distribution. Unit shall be assem- bled for draw thru application and shall be arranged to discharge conditioned air horizontally or vertically as shown on the contract drawings.

B.Unit with a direct-expansion cooling coil shall have the capability to be used in a refrigerant circuit in conjunc- tion with a field supplied and matched air-cooled condensing unit.

1.02QUALITY ASSURANCE

A.Coils shall be tested in accordance with ARI 410 “Standard for Forced-Circulation Air-Cooling and Air-Heating Coils”.

B.Direct expansion coils shall be designed and tested in accordance with ANSI/ASHRAE 15 “Safety Code for Refrigeration Systems”.

C.Insulation and insulation adhesive shall comply with NFPA 90A and 90B requirements for flame spread and smoke generation.

D.Unit shall be constructed in accordance with UL 1995 standards, comply with NEMA standards and shall carry the cETL label, display certification symbol on units of certified models. Installation of ancillary electrical components shall comply with NEC.

1.03 DELIVERY, STORAGE AND HANDLING

Unit shall be stored and handled in accordance with the unit manufacturer’s instructions.

Part 2 — Products

2.01EQUIPMENT

A.General:

Factory assembled blower coil that is modular in design and construction. Unit may consist of a fan and coil section with factory-installed chilled water or direct expansion coil, preheat or reheat coil, heating coil section, filter section, combination filter/mixing box (flat or V-bank arrangement), economizer, or access section(s) as indicated on the equipment schedules.

B.Unit Cabinet:

1.0Unit panels shall be constructed of G60 galvanized steel and shall be capable of withstanding 125-hour salt spray test per ASTM Standard 117. All casing panels shall be removable for easy access to the unit. All panels shall be gasketed to ensure a tight seal.

2.0Double wall unit panels (includes corner posts, mullions and access doors) shall be 1-in. nominal thickness using 1.5-lbs/ft3fiberglass insulation between galvanized steel panels.

3.0Single wall unit panels shall be 1-in. nominal thickness using matt-faced fiberglass insulation with a nom- inal density of not less than 1.5-lbs/ft3.

4.0Insulation shall be secured to casing with water based adhesive corresponding to 25/50-flame spread/smoke developed. Testing criteria and weld pins where necessary.

5.0Condensate drain pans shall be sloped to prevent standing water and shall be constructed of 18 gauge G90 galvanized steel or stainless steel; they shall have a galvanized steel or stainless steel male pipe threaded drain connection.

C.Fan Section:

1.0Fan sections shall be constructed of G60 steel and shall have a formed channel base for integral mount- ing of fan, motor, and casing panels. Fan housing, wheel, shaft, and bearings shall be rigidly secured to the base unit.

ENVIRO-TEC

25

Page 25
Image 25
Enviro 170S5FG manual Guide Specifications MQL, Guide Specifications Blower Coil Unit

170S5FG specifications

The Enviro 170S5FG is a cutting-edge hybrid vehicle from the renowned Enviro brand, designed to meet the evolving demands of public transportation while prioritizing sustainability and passenger comfort. One of the standout features of the Enviro 170S5FG is its hybrid powertrain, which effectively combines a diesel engine with an electric motor. This dual system significantly reduces emissions while ensuring optimal fuel efficiency. The vehicle is engineered to operate in various urban settings, making it an ideal choice for cities aiming to enhance their environmental impact.

In terms of performance, the 170S5FG boasts impressive acceleration and smooth operations, thanks to its state-of-the-art torque management system. The hybrid technology ensures that the vehicle can switch seamlessly between electric and diesel power, allowing it to conserve energy during low-speed travel, such as in stop-and-go traffic. This feature is particularly beneficial for reducing urban air pollution, as the vehicle emits fewer greenhouse gases compared to traditional diesel-only buses.

Passenger comfort is a priority in the Enviro 170S5FG, reflected in its thoughtfully designed interior. The spacious cabin can accommodate a significant number of passengers, with comfortable seating arrangements and ample standing room. Large windows provide natural light and enhance the overall travel experience. Additionally, the focus on accessibility means that the vehicle is equipped with features such as low floors, ramps, and designated spaces for wheelchairs, ensuring that it caters to all members of the community.

Safety comprises another area of excellence for the Enviro 170S5FG. Equipped with advanced safety technologies, including electronic stability control, anti-lock braking systems, and high-visibility LED lighting, the vehicle prioritizes the protection of passengers and drivers alike. The ergonomic design also includes enhanced visibility for the driver, contributing to safer navigation in complex urban environments.

Moreover, the Enviro 170S5FG incorporates intelligent connectivity features that enhance operational efficiency and passenger convenience. These technologies support real-time tracking and monitoring of bus performance, allowing transit authorities to optimize routes and schedules effectively.

In summary, the Enviro 170S5FG is a forward-thinking solution that combines hybrid technology, passenger-centric design, and advanced safety features. Its commitment to sustainability, performance, and comfort makes it an ideal asset for modern public transportation systems aiming to create greener cities while enhancing the commuter experience.