HomeMy WebLinkAboutM1.0.pdfGeneral
1. Immediately notify the Engineer of any discrepancies.
2. 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.
3. Work shall be performed in a workmanlike manner to the satisfaction of the Owner, Architect & the Engineer.
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. Coordinate architectural, structural, electrical, landscaping, fire protection, and interior design drawings with mechanical
drawings prior to installation.
9. Offset piping, ductwork, etc. as necessary to accommodate structure, beams, columns, and existing equipment.
Remodel, Demolition & Unforeseen Conditions
10. 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.
11. 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.
12. 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.
13. 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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fiber insulation with a continuous vapor barrier.
16. Externally wrap all unlined ductwork with 2" thick insulation with a continuous vapor barrier. Minimum R-Value of 6.0.
Piping
17. Domestic Hot, Cold & Recirculation piping inside building - Buried lines type 'K' copper water tube, wrought copper fittings
and 1100F solder. 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. Plans call for
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18. Waste & Vent 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.
19. Vent lines may be Schedule 40 ABS-DWV plastic pipe and fittings (ASTM D2661) or Schedule 40 PVC-DWV plastic pipe
and fittings (ASTM D2665). All pipe and fittings shall bear NFS-DWV mark and shall be joined with solvent weld joints as
recommended by the manufacturer.
20. 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. CSST pipe is prohibited except for final connection to appliances.
Ductwork
21. Duct sizes shown on drawings are outside (sheet metal) duct dimensions.
22. All ductwork shall be sealed airtight with duct mastic. Duct tape is prohibited.
23. Seal all ductwork joints and vapor barrier penetrations at all exterior walls.
24. Provide turning vanes in all mitered rectangular elbows.
25. Make all final connections to supply GRD's with acoustic flexible duct, 4' to 8' in length.
26. All ductwork or surfaces which are visible behind grilles shall be painted flat black.
Controls
27. 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.
28. See Sequence of Operation for additional control information.
1. Kitchen Make-up Air (MAU-1)
a. Provide (1) Tekmar 356 mixing control with duct mounted temperature sensor. Mount temperature sensor in MAU-1 supply
air duct.
b. MAU-1 fan shall be electrically interlocked with kitchen exhaust fan.
c. Upon activation of kitchen exhaust fan, normally closed OSA damper shall fully open and make-up air unit fan shall start.
d. Upon a call for heating from duct mounted temperature sensor, P-1 pump shall start.
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and outside air damper shall close. Manual reset shall be required.
2. Water Heating (WH-3)
a. Upon a call for heat from tank mounted aquastat, P-2 pump shall start.
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3. Fans
a. EF-1 garage exhaust fan shall be energized via interlock with the garage door opener. Once energized, fan shall run for 30
minutes (adj) as set by adjustable timer. Any trigger of the garage door opener during the timed run period shall reset the
timer. Also, provide a wall mounted 2 hour timer switch for manual operation.
b. EF-2 bath exhaust fans shall each be controlled by a wall switch.
c. EF-3 ski room exhaust fan shall be controlled by a wall mounted 2 hour timer switch.
5/1/14
05/12/14