HomeMy WebLinkAboutM3.0.pdfMECHANICAL SPECIFICATIONS
General
1. Immediately notify the Engineer of any discrepancies.
2. Do not scale drawings. Verify dimensions in field prior to commencement of work.
3. It is the intent of these drawings and specifications to establish a standard of quality. The Engineer reserves the right to take exceptions
to approve methods and materials not reflected herein.
4. Labor, materials, and equipment shall conform to the latest applicable editions of local, State of Colorado, and National Codes and
ordinances. If conflict between those publications exists, the most stringent requirement shall apply.
5. Provide record drawings to architect. Drawings shall include all addendum items, change orders, alterations, re-routings, etc.
6. The drawings show the intent of the mechanical systems but do not show all details required. It is the responsibility of the Contractors to
install complete & operable systems, which conform to the manufacturers' installations instructions & industry standards.
7. Systems shall be tested for proper operation. If tests show work is defective, Contractor shall make corrections necessary at no cost to
Owner.
8. It is the Contractors' and manufacturers' responsibility to assure themselves that the code authorities will approve any product to be
installed on the project.
9. Provide necessary trenching, backfill, excavation, supports, piping, insulation, saw cutting and patching, concrete/paving, etc., as
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10. Systems shall be professionally labeled. Piping shall be labeled with color coded commercial grade labels indicating piping service and
flow direction. Equipment labels shall follow the same nomenclature as the mechanical drawings.
11. See architectural reflected ceiling plan for all ceiling penetrations.
12. Coordinate architectural, structural, electrical, landscaping, fire protection, and interior design drawings with mechanical drawings prior
to installation.
13. Offset piping, ductwork, etc. as necessary to accommodate structure, beams, columns, and existing equipment.
14. Verify exact locations of existing and new underground utilities, piping, and raceway systems prior to trenching. Contractor shall obtain
and verify exact utility company drawings and requirements.
Electrical
15. Contractor must carefully verify electrical service voltage and phase available before ordering any equipment.
16. The following are to be furnished by MC and wired by EC: equipment motors, magnetic starters, line voltage thermostats, factory
disconnect switches (if specified as part of factory wired equipment) resistance heaters, fire and smoke detectors.
17. The following are to be furnished and wired by EC: disconnect switches, thermal overload switches, manual operating switches and
contactors.
18. The following are to be furnished and wired by MC: low voltage thermostats, control transformers, control relays, control panels,
motorized valves, motorized dampers, pilot lights, multi-speed switches and interlocks.
Remodel, Demolition & Unforeseen Conditions
19. Provide mechanical demolition required. Refer to architectural demolition drawings for location and extent of demolition required.
Provide labor and materials as required to maintain and/or restore continuity of service to existing systems.
20. In as much as design for remodel, renovation and/or rehabilitation requires that certain assumptions be made regarding existing
conditions and because some of these assumptions cannot be verified without destroying otherwise adequate or serviceable portions of
the building, the Engineer cannot assure the Owner or the Contractor that the professional consulting services herein encompass all
contingencies. Field coordination during construction is imperative. Contractors bidding this work must make reasonable allowances
for unseen conditions and should include associated allowances in their bids noted as such.
21. Field verify locations of all existing piping, equipment, ductwork, etc.
22. Be responsible to field verify existing equipment or ductwork remaining to be reconnected to new or existing systems. Provide
ductwork, piping, controls, diffusers, etc., as required to restore continuity to system(s).
23. All new ductwork, piping, equipment, etc. is shown with dark lineweight. All existing ductwork, piping, equipment, etc. is shown with
light lineweight.
24. All removed piping, ductwork, equipment, etc. are to be disposed of by Contractor unless noted otherwise.
25. All existing support rods and straps now supporting ducts, pipes, air tubing, electrical conduit, etc. that are removed to allow room for
installation of new equipment shall be relocated and reinstalled, or replaced if damaged.
26. New hot and cold water branches to be routed from nearest hot water and cold water of line size equal to or greater than new branch -
typical.
Insulation
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of not more than 25 and a smoke-developed index of not more than 50 when test in accordance with ASTM E 84, latest revision.
28. Elastomeric insulation: Slip insulation over pipe before assembly so that there are no length wide seams. Where lengths of insulation are
butted together, use factory recommended adhesive. Glue the butt ends of insulation to each other to form a homogenous membrane
maintaining the vapor barrier. Exterior elastomeric insulation shall be installed with the longitudinal seam on the bottom of the pipe and
shall be protected with an ultra violet resistive paint. Elastomeric insulation shall be covered with two coats of paint manufactured
specifically for covering Elastomeric insulation, Armaflex WB Finish or equal.
29. Insulate all new heating water, domestic hot water, and domestic hot water recirculation, with U.L. approved, white, all service, glass
fiber, snap-on, pipe insulation. Minimum R-Value of 3.0 for all piping. Insulate fittings with glass fiber blanket insulation and
premolded PVC covers. Provide deduct alternate price to insulate with Armaflex.
30. Insulation for all types of piping shall be carried full size through pipe hangers or pipes shall be supported with vibration clamps.
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Piping
32. Domestic Hot, Cold & Recirculation piping inside building - Non-buried lines, type 'L' copper water tube, wrought copper fittings and
no lead solder. Provide alternate pricing for PEX tubing (no oxygen diffusion barrier necessary). Unless otherwise noted, piping on
plans has been sized for copper, and if ASTM PEX piping is used, increase size of piping one nominal size from size shown on plans, ie.
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33. Heating Water piping - Piping may be type 'K' copper for all buried lines using wrought copper fittings and 1100F solder. For
non-buried piping, type 'L' copper, wrought copper fittings, and no lead solder. All buried pipe shall be surrounded with 4" of clean
sand.
34. PEX piping shall be supported by continuous cradles supplied by the manufacturer.
35. Condensing Boiler Condensate shall be neutralized via a neutralization basin before discharge into building drainage system. Condensate
piping shall be PVC or other approved material suitable for pH levels of 3.
36. Gas Piping - Schedule 40 black steel pipe, 150 lb. malleable iron screwed fittings on above ground pipe, welded fittings with all piping
coated and wrapped on buried pipe. Welded gas piping shall be pressure tested at a minimum of 60 psi per Town of Vail amendment to
the 2009 IFGC, section 406.4.1. CSST pipe is permitted for final connections only.
37. Gas Valves - Lubricated plug valve 175 lb. W.O.G. iron screwed or flanged.
38. Copper pipe Valves and Specialties:
Gate Valves: Bronze, Class 125, 200 lb. W.O.G.
Ball Valves: Bronze, Class 125, 200 lb. W.O.G.
Check Valves: Bronze, Class 125, 200 lb. W.O.G.
Balancing Valves: 125 psig w.p. for 250F service tight shut-off, Illinois dual-purpose, balancing/shut-off valve, Hoffman, Sarco, or
equivalent.
39. Support pipe with rod and clevis or clamps. No pipe tape allowed.
40. Provide expansion joints or loops on all heating water piping runs in excess of 50'.
41. Dielectric Unions - Furnish and install a dielectric union at all connections where non-ferrous material is in contact with ferrous material
and fluid in not protected with corrosion inhibitors.
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rooms as necessary with automatic air vents piped to convenient drain. All high points in system outside of equipment rooms with
manual air vents as required to relieve air in the system.
43. Provide plastic grommets on all heating water piping passing through wood joists and studs.
Boiler Flue & Combustion Air Piping
44. Boiler flue piping shall be a polypropylene venting system, listed in accordance with ULC-S636, and rated for flue gas venting systems.
Flue shall be Centrotherm Innoflue, Duravent PolyPro or equal.
45. Boiler combustion air piping shall be PVC, complying with ASTM D1785.
Antifreeze Solutions
46. DILUTION WATER QUALITY: Contractor shall be responsible for testing the water and submitting a report to the Owner & Engineer,
prior to system fill. "Hard" water shall not be used. The water used to dilute the concentrated inhibited glycol-based heat transfer fluid
must be either distilled, deionized, or contain less than 25 ppm of chloride, 25 ppm of sulfate, 50 ppm of calcium, and 50 ppm of
magnesium, with a total hardness not to exceed 100 ppm. If good quality water is unavailable, the manufacturer of the glycol product
will provide the heat transfer fluid and water to meet the specifications of the system.
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Vibration Isolation
48. Where specified, spring vibration isolators for support of equipment shall be properly aligned so that support rod does not contact spring
housing.
Controls
49. Mount all thermostats and humidistats 5'-0" above finished floor.
50. Thermostats & remote temperature sensors shall not be installed above heat emitting equipment, including wall mounted touch screen
controls. Do not mount on exterior walls or above/below forced air supply registers.
51. All thermostats shall have a temperature range suitable for the application and have adjustable set points. The thermostats shall be able
to display temperature setpoint and room temperature. All thermostats shall be approved by the Owner.
52. Freeze Detection Thermostats. Each supply system with water coils taking outside air shall have a freeze detection thermostat located
on the downstream side of the coil. Thermostats shall be of adjustable electric contact type, silver plated, manual reset with 20' flexible
sensing bulb of increment type with any section capable of actuating mechanism on temperature drop below set point, thermostat shall
stop fan(s) and close outside air damper. They shall have an isolated set of contacts for alarm system.
53. Smoke detectors shall be installed in return air systems with a design capacity greater than 2,000 CFM, in the return duct or plenum
upstream of any filters, exhaust air connections or outdoor air connections. Installation shall comply with NFPA 72 and Section 606 of
the 2003 IMC. Upon detection of smoke, fan shall automatically shut down.
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additional information.
55. See Sequence of Operation for additional control information.
Balancing
56. Air and water flows must be balanced, and fan belts, pumps, and drive systems adjusted as required. Balance Contractor shall furnish
subsequent air balances after acceptance of the building.
57. Submit a written balance report. Balancing procedures shall be in accordance with NEBB or AABC guidelines for proportional balance.
Submit report on standard NEBB forms.
58. Airside measurements shall include all motor amperage, voltage readings, motor RPM, fan RPM, fan CFM, fan inlet static pressure, fan
outlet static pressure, and exhaust grille CFM.
59. Hydronic measurements shall include circuit setters, all motor amperage, voltage readings, motor RPM, pump RPM, pump GPM as
calculated from the pump curve, inlet and outlet pressures at pumps, and temperature and pressure drop at all coils.
60. GROUND SOURCE HEAT PUMPS: Balancer to furnish the following test data to Rader Engineering for Performance Check:
source-side water in & out temperatures, source GPM, load-side water in & out temperatures, load GPM, voltage, amperage, refrigerant
subcool temperature (per compressor) and refrigerant superheat temperature (per compressor).
61. Adjust flows to within 10% of required quantity. If actual quantity is less than 90% of design, investigate cause, attempt to rectify and
notify Engineer. Submittal of balance report with less than required flows without explanation is cause for rejection of report.
62. Submit three copies of all submittals in addition to any required by the Contractor. These copies shall be retained by the Owner,
Contractor and Engineer.
3/18/15
04/21/15