HomeMy WebLinkAboutM1.0.pdfGeneral
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. 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.
9. It is the Contractors' and manufacturers' responsibility to assure themselves that the code authorities will
approve any product to be installed on the project.
10. Coordinate architectural, electrical, and pool contractor drawings with mechanical drawings prior to
installation.
11. Offset piping, ductwork, etc. as necessary to accommodate structure, beams, columns, and existing
equipment.
Remodel, Demolition & Unforeseen Conditions
12. 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.
13. Provide mechanical 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.
14. 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.
Insulation
15. 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.
16. Insulate all new spa heating piping with flexible 1-1/2'' thick, closed-cell elastomeric insulation. Insulation
shall have a flame spread index of less than 25 and a smoke-developed index of less than 50 when test in
accordance with ASTM E 84, latest revision
17. Gas Piping - Schedule 40 black steel pipe, 150 lb. malleable iron screwed fittings on above ground pipe.
CSST pipe is permitted for final connections only.
Boiler Flue & Combustion Air Piping
18. Boiler flue piping shall be Schedule 40 PVC or other material listed for venting of condensing gas-fired
appliance per UL 1738 by a Nationally Recognized Testing Laboratory.
19. Boiler combustion air piping shall be PVC, complying with ASTM D1785.
Ductwork
20. Seal all ductwork joints and vapor barrier penetrations at all exterior walls.
21. Ducts and piping penetrating through roof shall have roof flashing with caulk type counter flashing sleeve or
by method acceptable by roofing manufacturer. Installation shall be watertight.
22. Provide backdraft dampers at any and all ductwork penetrations through exterior wall (except outside air and
combustion air ductwork).
23. Sheet metal and fittings to be pursuant to SMACNA and ASHRAE standards.
24. All ducts shall be 26 gauge minimum. Duct gauge and construction shall conform to SMACNA HVAC Duct
Construction Standards.
Controls
25. Mount all thermostats 5'-0" above finished floor.
26. Install emergency gas shutoff switch inside mechanical rooms containing boilers. Switch plate shall be red in
color and labeled “GAS BURNER EMERGENCY SWITCH”. Switch shall be compliant with Section
1006.8 of the 2009 IMC. Refer to electrical drawings for additional information.
Mechanical Specifications
7/30/15
09/09/15