- Sherwood Industries Ltd. Blower User Manual

GUIDE SPECIFICATIONS • MQL
25
Guide Specifications
Blower Coil Unit
HVAC Guide Specifications - Section 15XXX
Size Range: 600 – 10,000 CFM
ENVIRO-TEC
®
Model Number: MQL
Part 1 — General
1.01 SYSTEM 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.
1.02 QUALITY 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
2.01 EQUIPMENT
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:
1.0 Unit 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.
2.0 Double wall unit panels (includes corner posts, mullions and access doors) shall be 1-in. nominal
thickness using 1.5-lbs/ft
3
fiberglass insulation between galvanized steel panels.
3.0 Single 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/ft
3
.
4.0 Insulation shall be secured to casing with water based adhesive corresponding to 25/50-flame
spread/smoke developed. Testing criteria and weld pins where necessary.
5.0 Condensate 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:
1.0 Fan 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