HomeMy WebLinkAbout23 82 19 - Fan Coil UnitsBEARDSLEY DESIGN ASSOCIATES
CORNELL NCP FAN COIL UNITS
STANDARD SPECIFICATIONS 23 82 19 – PAGE 1 OF 5
NOVEMBER 2, 2012
SECTION 238219 FAN COIL UNITS
PART 1 GENERAL
1.1 SUBMITTALS
A. Product Data: Provide rated capacities, operating characteristics, furnished
specialties, and accessories.
B. Shop Drawings: Detail equipment assemblies and indicate dimensions,
weights, loads, required clearances, method of field assembly, components,
and location and size of each field connection.
1. Wiring Diagrams: Power, signal, and control wiring.
C. Operation and Maintenance Data: For fancoil un its to include in emergency,
operation, and maintenance manuals. Maintenance schedules and repair
part lists for motors, coils, integral controls, and filters.
D. Warranty: Special warranty specified in this Section.
1.2 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as
defined in NFPA 70, Article 100, by a testing agency acceptable to authorities
having jurisdiction, and marked for intended use.
B. ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 5
"Systems and Equipment" and Section 7 "Constructi on and Startup."
C. ASHRAE/IESNA 90.1 Compliance: Applicable requirements in
ASHRAE/IESNA 90.1, Section 6 "Heating, Ventilatin g, and Air
Conditioning."
1.3 COORDINATION
A. Coordinate layout and installation of fancoil u nits and suspension system
components with other construction that penetrates or is supported by
ceilings, including light fixtures, HVAC equipment, firesuppressionsystem
components, cable trays, and partition assemblies.
1.4 WARRANTY
A. Special Warranty: Manufacturer's standard form in which manufacturer
agrees to repair or replace components of condensing units that fail in
materials or workmanship within specified warranty period.
1. Failures include, but are not limited to, the following:
a. Compressor failure.
b. Condenser coil leak.
2. Warranty Period: Five years from date of Substantial Completion.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP FAN COIL UNITS
STANDARD SPECIFICATIONS 23 82 19 – PAGE 2 OF 5
NOVEMBER 2, 2012
1.5 EXTRA MATERIALS
A. Furnish extra materials described below that match products installed and
that are packaged with protective covering for storage and identified with
labels describing contents.
1. FanCoilUnit Filters: Furnish two spare filter s for each filter installed.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. In other Part 2 articles where titles below introduce lists, the following
requirements apply to product selection:
B. In the FanCoilUnit Schedule where titles below are column or row headings
that introduce lists, the following requirements apply to product selection:
1. Available Manufacturers: Subject to compliance with requirements,
manufacturers offering products that may be incorporated into the Work
include, but are not limited to, manufacturers specified.
2. Manufacturers: Subject to compliance with requirements, provide
products by one of the manufacturers specified.
3. BasisofDesign Product: The design for each fa ncoil unit is based on
the product named. Subject to compliance with requirements, provide
either the named product or a comparable product by one of the other
manufacturers specified.
2.2 FANCOIL UNITS
A. Acceptable Manufacturers:
1. Carrier Corporation.
2. DunhamBush.
3. McQuay International.
4. Trane.
5. USA Coil & Air.
6. YORK International Corporation
7. ENVIROTEC
B. Description: Factorypackaged and tested units rated according to ARI 440,
ASHRAE 33, and UL 1995.
C. Coil Section Insulation: 1inch (25mm) thick, coated glass fiber or foil
covered, closedcell foam complying with ASTM C 107 1 and attached with
adhesive complying with ASTM C 916.
1. FireHazard Classification: Insulation and adhe sive shall have a
combined maximum flamespread index of 25 and smoke developed
index of 50 when tested according to ASTM E 84.
2. Airstream Surfaces: Surfaces in contact with the airstream shall comply
with requirements in ASHRAE 62.1.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP FAN COIL UNITS
STANDARD SPECIFICATIONS 23 82 19 – PAGE 3 OF 5
NOVEMBER 2, 2012
D. Main and Auxiliary Drain Pans: Stainless steel. Fabricate pans and drain
connections to comply with ASHRAE 62.1.
E. Chassis: Galvanized steel where exposed to moisture.
F. Cabinet: Steel with bakedenamel finish in manu facturer's standard paint
color as selected by Architect.
1. Horizontal Unit Bottom Panels: Fastened to unit with cam fasteners and
hinge and attached with safety chain; with integral stamped discharge
grilles.
G. Filters: Minimum arrestance according to ASHRAE 52.1, and a minimum
efficiency reporting value (MERV) according to ASHRAE 52.2.
1. Pleated CottonPolyester Media: 90 percent arre stance and 7 MERV.
H. Hydronic Coils: Copper tube, with mechanically bonded aluminum fins
spaced no closer than 0.1 inch (2.5 mm), rated for a minimum working
pressure of 200 psig (1378 kPa) and a maximum enteringwater temperature
of 220 deg F (104 deg C). Include manual air vent and drain valve.
I. Fan and Motor Board: Removable.
1. Fan: Forward curved, double width, centrifugal; directly connected to
motor. Thermoplastic or paintedsteel wheels, and aluminum, painted
steel, or galvanizedsteel fan scrolls.
2. Motor: Permanently lubricated, multispeed; resiliently mounted on motor
board.
3. Wiring Termination: Connect motor to chassis wiring with plug
connection.
J. Factory, Hydronic Piping Package: ASTM B 88, Type L copper tube with
wroughtcopper fittings and brazed joints. Label p iping to indicate service,
inlet, and outlet.
1. Twoway, modulating control valve for chilledwa ter coil.
2. Hose Kits: Minimum 400psig (2758kPa) working pressure, and
operating temperatures from 33 to 211 deg F. Tag hose kits to
equipment designations.
a. Length: 24 inches (600 mm) maximum.
b. Minimum Diameter: Equal to fancoilunit connec tion size.
3. TwoPiece Ball Valves: Bronze body with fullpo rt, chromeplated bronze
ball; PTFE or TFE seats; and 600psig (4140kPa) mi nimum CWP rating
and blowoutproof stem.
4. CalibratedOrifice Balancing Valves: Bronze bod y, ball type; 125psig
(860kPa) working pressure, 250deg F maximum operating temperature;
with calibrated orifice or venturi, connections for portable differential
pressure meter with integral seals, threaded ends, and equipped with a
memory stop to retain set position.
5. Automatic FlowControl Valve: Brass or ferrous metal body; 300psig
(2070kPa) working pressure at 250 deg F , with rem ovable, corrosion
resistant, tamperproof, selfcleaning piston spring ; factory set to maintain
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP FAN COIL UNITS
STANDARD SPECIFICATIONS 23 82 19 – PAGE 4 OF 5
NOVEMBER 2, 2012
constant indicated flow with plus or minus 10 percent over differential
pressure range of 2 to 80 psig (13.8 to 552 kPa).
6. YPattern Hydronic Strainers: Castiron body (A STM A 126, Class B);
125psig (860kPa) working pressure; with threaded connections, bolted
cover, perforated stainlesssteel basket, and botto m drain connection.
Include minimum NPS 1/2 hoseend, fullport, balltype blowdown valve
in drain connection.
7. WroughtCopper Unions: ASME B16.22.
8. Risers: ASTM B 88, Type L copper pipe with hose and ball valve for
system flushing.
K. Basic Unit Controls:
1. Control voltage transformer.
2. Wallmounting thermostat with the following feat ures:
a. Cooloff switch.
b. Fan onauto switch.
c. Fanspeed switch.
d. Degree F indication.
3. Wallmounting temperature sensor.
L. Electrical Connection: Factory wire motors and controls for a single electrical
connection.
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine areas to receive fancoil units for comp liance with requirements for
installation tolerances and other conditions affecting performance.
B. Examine roughingin for piping and electrical co nnections to verify actual
locations before fancoilunit installation.
C. Proceed with installation only after unsatisfactory conditions have been
corrected.
3.2 INSTALLATION
A. Install fancoil units level and plumb.
B. Install fancoil units to comply with NFPA 90A.
C. Suspend fancoil units from structure with elast omeric hangers. Provide
vibration isolator bushing or rubber in shear isolators.
D. Verify locations of thermostats, and other exposed control sensors with
Drawings and room details before installation. Install devices 60 inches
(1525 mm) above finished floor.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP FAN COIL UNITS
STANDARD SPECIFICATIONS 23 82 19 – PAGE 5 OF 5
NOVEMBER 2, 2012
E. Install new filters in each fancoil unit within two weeks after Substantial
Completion.
3.3 CONNECTIONS
A. Piping installation requirements are specified in other Division 23 Sections.
Drawings indicate general arrangement of piping, fittings, and specialties.
Specific connection requirements are as follows:
1. Install piping adjacent to machine to allow service and maintenance.
2. Connect piping to fancoilunit factory hydronic piping package. Install
piping package if shipped loose.
3. Connect condensate drain to indirect waste.
a. Install condensate trap of adequate depth to seal against the pressure
of fan. Install cleanouts in piping at changes of direction.
B. Connect wiring according to Division 26 Section "LowVoltage Electrical
Power Conductors and Cables."
3.4 FIELD QUALITY CONTROL
A. Manufacturer's Field Service: Engage a factory authorized service
representative to inspect fieldassembled component s and equipment
installation, including connections, and to assist in field testing. Report
results in writing.
B. Perform the following field tests and inspections and prepare test reports:
1. Operational Test: After electrical circuitry has been energized, start units
to confirm proper motor rotation and unit operation.
2. Operate electric heating elements through each stage to verify proper
operation and electrical connections.
3. Test and adjust controls and safety devices. Replace damaged and
malfunctioning controls and equipment.
C. Remove and replace malfunctioning units and retest as specified above.
3.5 ADJUSTING
A. Adjust initial temperature set points.
B. Occupancy Adjustments: When requested within 12 months of date of
Substantial Completion, provide onsite assistance in adjusting system to suit
actual occupied conditions. Provide up to two visits to Project during other
than normal occupancy hours for this purpose.
3.6 DEMONSTRATION
A. Engage a factoryauthorized service representati ve to train Owner's
maintenance personnel to adjust, operate, and maintain fancoil units.
END OF SECTION 238219