HomeMy WebLinkAboutB16-0405_M1.0_1479389464.pdfMechanical Specifications
General
1. Immediately notify the Engineer of any discrepancies.
2. It shall be assumed that all subcontractors are experienced and thoroughly knowledgeable in their respective areas of the construction industry and shall perform in a responsible manner in an appropriate
construction sequence.
3. Do not scale drawings. Verify dimensions in field prior to commencement of work.
4. 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.
5. Failure to order, or release order, for materials and/or equipment will not be accepted as a reason to substitute alternate materials, equipment, or installation methods.
6. Work shall be performed in a workmanlike manner to the satisfaction of the Architect & the Engineer.
7. 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.
8. Provide record drawings to architect. Drawings shall include all addendum items, change orders, alterations, re-routings, etc.
9. 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.
10. Systems shall be tested for proper operation. If tests show work is defective, Contractor shall make corrections necessary at no cost to Owner.
11. It is the Contractors' and manufacturers' responsibility to assure themselves that the code authorities will approve any product to be installed on the project.
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match existing grade.
13. Systems shall be professionally labeled. Piping shall be labeled with color coded commercial grade labels indicating piping service and flow direction. Equipment, fans, pumps, valves, switches and controls
shall be labeled with engraved plastic or metal tags and an equipment/valve schedule shall be provided and mounted on the mechanical room wall. Equipment labels shall follow the same nomenclature as the
mechanical drawings.
14. See architectural reflected ceiling plan for all ceiling penetrations.
15. Coordinate architectural, structural, electrical, landscaping, fire protection, and interior design drawings with mechanical drawings prior to installation.
16. Offset piping, ductwork, etc. as necessary to accommodate structure, beams, columns, and existing equipment.
17. 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
18. Contractor must carefully verify electrical service voltage and phase available before ordering any equipment.
19. 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.
20. The following are to be furnished and wired by EC: disconnect switches, thermal overload switches, manual operating switches and contactors.
21. 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
22. Visit site prior to bid and verify the conditions. Include in the bid, costs required to make work meet existing conditions, whether indicated or not.
23. Provide mechanical demolition required. Refer to architectural demolition drawings for location and extent of demolition required. Visit site prior to bid to determine extent of work involved. Provide labor
and materials as required to maintain and/or restore continuity of service to existing systems.
24. 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.
25. Field verify locations of all existing piping, equipment, ductwork, etc.
26. All ductwork, diffusers, and equipment shown on this plan are new, except where noted.
27. All new ductwork, piping, equipment, etc. is shown with dark lineweight. All existing ductwork, piping, equipment, etc. is shown with light lineweight.
28. All removed piping, ductwork, equipment, etc. are to be disposed of by Contractor unless noted otherwise.
29. 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.
30. Cap all demolished and abandoned duct take-offs at trunk duct.
31. Extend and modify existing fire protection systems to new and remodeled areas.
Ductwork
32. All ductwork shall be sealed airtight with duct mastic. Duct tape, where used, shall be UL listed.
33. Seal all ductwork joints and vapor barrier penetrations at all exterior walls.
34. Provide backdraft dampers at any and all ductwork penetrations through exterior wall (except outside air and combustion air ductwork).
35. Provide turning vanes in all mitered rectangular elbows.
36. Provide volume dampers at all accessible round duct take-offs.
37. Make all final connections to supply GRD's with acoustic flexible duct. Minimum length shall be 4 feet. Maximum length shall be 8 feet.
38. Sheet metal and fittings to be pursuant to SMACNA and ASHRAE standards.
39. All ducts shall be 26 gauge minimum. Duct gauge and construction shall conform to SMACNA HVAC Duct Construction Standards.
40. Contractor to coordinate exact location of grilles and registers before installation.
41. Seal off all ducts during construction.
42. Wrap all unlined supply ducts with 2" duct wrap.
Piping
43. Waste & Vent piping inside building:
Waste lines above ground: Standard weight, C.I. soil pipe, and fittings, or hubless, C.I. soil pipe and fittings. Up through 2-1/2" may be standard weight, galvanized steel pipe with black, C.I. drainage fittings.
Lines buried below ground: Standard weight, C.I. soil pipe, and fittings. Class 50 ductile iron pipe and fittings or hubless C.I. with C.I. couplings for below grade.
Vent lines above ground: Standard weight, C.I. soil pipe, and fittings, or standard weight, galvanized steel pipe with 150 lt., galvanized malleable iron fittings for lines 2" and over, for lines 1-1/2" and less,
black, C.I. 125 lb. SWP fittings.
44. 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 2015 IFGC, section 406.4.1. CSST pipe is permitted for final connections only.
45. Gas Valves - Lubricated plug valve 175 lb. W.O.G. iron screwed or flanged.
46. 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.
Controls
47. Mount all thermostats and controls 4'-0" above finished floor.
48. See Sequence of Operation for additional control information.
Balancing
49. Air flows must be balanced where airflows (CFM) are noted on the plans.
1. Fan Coils
a. HEATING: Existing controls to remain. Upon a call for heating from associated thermostat, electric coil shall be enabled and fan shall start.
b. COOLING: Existing controls to remain. Upon a call for cooling from associated thermostat, chiller shall be enabled, chilled water valve shall open allowing chilled water to flow coil, and fan shall start.
c. VENTILATION: Fan shall run continuously during occupied periods to provide code required ventilation. During unoccupied periods fan shall cycle on and off to meet heating and cooling demands as
required.
2. Fans
a. EF-1 exhaust fan shall be controlled by a 12-hour timer switch.
3. Air Doors
a. Existing two air doors shall be controlled by a new 24-hour time clock (refer to electrical drawings). Set schedule as per new space operator.
Sequence of Operation
ADD ALTERNATES
ADD ALT. #1 - THERMOSTATS
PROVIDE SEPARATE LINE ITEM COST TO REPLACE THE (8) EXISTING
THERMOSTATS WITH NEW PROGRAMMABLE COMMERCIAL THERMOSTATS WITH
FAN AUTO/ON SWITCH & HEATING & COOLING MODES AS REQUIRED. REVIEW
OPTIONS WITH OWNER. COORDINATE NUMBER OF STAGES REQUIRED WITH
EXISTING EQUIPMENT.
9/21/16
11/16/16