Enviro 170S5FG manual Guide Specifications Mql, Guide Specifications Blower Coil Unit

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