HomeMy WebLinkAboutB15-0208_M4.0_1479324480.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.
12. Systems shall be professionally labeled. Piping shall be labeled with color coded commercial grade labels indicating piping service and flow
direction. Equipment, pumps and valves 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.
13. Mechanical Contractor to make final connections to kitchen equipment.
14. See architectural reflected ceiling plan for all ceiling penetrations.
15. Coordinate architectural, structural, electrical, 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.
Electrical
17. Contractor must carefully verify electrical service voltage and phase available before ordering any equipment.
18. 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.
19. The following are to be furnished and wired by EC: occupancy sensors, disconnect switches, thermal overload switches, manual operating switches
and contactors.
20. 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.
Shop Drawings
21. Submit entire HVAC and plumbing shop drawing submittal data at one time. Submittal to be bound in three-ring binders, indexed in a neat and
orderly manner. Partial submittals will not be accepted. Submittals shall include, but not be limited to: equipment, fixtures, insulation, diffusers,
pumps, fans, piping, and valves.
22. Submit a scaled shop drawing for the grease duct system.
Remodel, Demolition & Unforeseen Conditions
23. 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.
24. 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.
25. 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.
26. Field verify locations of all existing piping, equipment, ductwork, etc.
27. All ductwork, diffusers, and equipment shown on this plan are new, except where noted.
28. All new ductwork, piping, equipment, etc. is shown with dark lineweight. All existing ductwork, piping, equipment, etc. is shown with light
lineweight.
Insulation
29. Insulate all new heating water, domestic hot water, domestic hot water recirculation, radiant floor (mains and runouts to areas being heated) and
VQRZPHOW SLSLQJ PDLQV DQG UXQRXWV WR DUHDV EHLQJ KHDWHG ZLWK $UPDFHOO FORVHG FHOO IRDP LQVXODWLRQ ´ RQ PDLQV RQ UXQRXWV
30. Insulation shall be installed under all radiant heated floors on slab. Insulation shall have a minimum R-value of 15 at a mean testing temperature of
)
31. Insulation shall be installed under all exterior snowmelt areas. Insulation shall be Dow Styrofoam Highload 40 extruded polystyrene foam board
insulation that has an R-5 per inch insulation value, 40 psi compressive strength rating, and 2" thick. Insulation installed under traffic areas must be
traffic rated.
32. Insulation for all types of piping shall be carried full size through pipe hangers or pipes shall be supported with vibration clamps.
33. Internally line all new ductwork inside the thermal envelope (unless noted otherwise) with 1/2" thick, 2.0 PCF, U.L. rated, glass fiber insulation
with a continuous vapor barrier.
Piping
34. Domestic Hot, Cold, and Recirculation piping inside building - Buried lines, PEX tubing (no oxygen diffusion barrier necessary). Non-buried lines,
type 'L' copper water tube, wrought copper fittings and no lead solder.
35. Waste lines and 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.
36. Heating Water piping and snowmelt mains - Piping may be type 'L' copper, wrought copper fittings, and no lead solder.
37. PEX piping shall be supported by continuous cradles supplied by the manufacturer.
38. 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 2012 IFGC, section
406.4.1. CSST pipe is permitted for final connections to appliances only.
39. For commercial kitchen gas appliances, use "Safe-T-Link" gas connector kits with stainless steel braid and extruded coating, quick disconnect, ball
valve and restraining cable per code, for all connections to under the hood that are moveable (wheels).
40. Gas Valves - Lubricated plug valve 175 lb. W.O.G. iron screwed or flanged.
41. 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.
42. Refer to Fixture Connection Schedule for pipe sizes to individual fixtures.
43. Support pipe with rod and clevis or clamps. No pipe tape allowed.
44. Provide expansion joints or loops on all heating water piping runs in excess of 50'.
45. Dielectric Unions - Furnish and install a dielectric union at all connections where non-ferrous material is in contact with ferrous material and fluid is
not protected with corrosion inhibitors.
46. *UDGH DQG YDOYH DOO KHDWLQJ ZDWHU SLSLQJ ZLWK ô´ KRVH HQG YDOYHV WR SHUPLW GUDLQDJH RI WKH V\VWHP 9HQW DOO KLJK SRLQWV LQ HTXLSPHQW URRPV DV
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.
47. Install plumbing clean-outs as required by applicable codes.
Ductwork
48. Install all ductwork as high and tight to ceiling as possible to maximize available ceiling height.
49. Duct sizes shown on drawings are outside (sheet metal) duct dimensions.
50. All ductwork shall be sealed airtight with duct mastic. If duct tape is also used, it must be UL listed.
51. Provide 1/4" galvanized mesh screen on all combustion air ducts or openings.
52. Seal all ductwork joints and vapor barrier penetrations at all exterior walls.
53. 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.
54. Provide backdraft dampers at any and all ductwork penetrations through exterior wall (except outside air and combustion air ductwork).
55. Provide turning vanes in all mitered rectangular elbows.
56. Provide volume dampers at all accessible round duct take-offs.
57. All ductwork or surfaces which are visible behind a grille, register, diffuser or louver shall be painted flat black.
58. All ducts shall be 26 gauge minimum. Duct gauge and construction shall conform to SMACNA HVAC Duct Construction Standards.
59. Contractor to coordinate exact location of grilles and registers before installation.
60. Seal off all ducts during construction.
Vibration Isolation
61. Where specified, duct-to-fan connections shall be made with flexible canvas duct connector material. Provide duct alignment within 1/2" at the fan
collar and duct collar.
62. Where specified, spring vibration isolators for support of equipment shall be properly aligned so that support rod does not contact spring housing.
Type I Grease Exhaust Ductwork
63. Type I grease exhaust ductwork shall slope not less than one-fourth unit vertical in 12 units horizontal toward the hood or toward an approved
grease reservoir.
64. Ducts exposed to the outside atmosphere or subject to a corrosive environment shall be protected against corrosion in an approved manner.
65. Grease duct serving Type I hoods shall be constructed of steel not less than 0.055 inch (No. 16 Gage) in thickness or stainless steel not less than
0.044 inch (No. 18 Gage) in thickness.
66. Make up air ducts connecting to or within 18 inches of Type I hoods shall have insulation that is noncombustible or listed for the application.
67. Joints, seams and penetrations of grease ducts shall be made with a continuous liquid-tight weld made on the external surface of the duct system.
Internal welding or brazing shall be ground smooth. Penetrations not welded such as access doors shall sealed by devices listed for the application.
68. Duct joints shall be butt joints or overlapping duct joints of either the telescoping or bell type. Overlapping joints shall be installed to prevent ledges
and obstructions from collecting grease or interfering with gravity drainage to the intended collection point.
69. Duct-to-exhaust fan connection shall be flanged, gasketed, and bolted.
70. Grease duct bracing and supports shall be of noncombustible material securely attached to the structure and designed to carry gravity loads within
the stress limitations of the International Building Code. Bolts, screws, rivets and other mechanical fasteners shall not penetrate duct walls.
71. )URP KRRGV WR JUHDVH IDQ LQOHW JUHDVH GXFW VKDOO EH ZUDSSHG ZLWK WZR OD\HUV RI ´ WKLFN ILUHZUDS V\VWHP 0 )LUH %DUULHU 'XFW :UDS WKDW
has been tested in accordance with ASTM E 814 and ASTM E 2336. Wrap shall be installed in strict accordance with manufacturer's written
instructions and shall be protected where subject to physical damage. Clearance to combustibles for duct wrap is zero inches.
72. Unwrapped grease duct and exhaust equipment serving Type I hoods shall have a clearance to combustibles of not less than 18 inches, and shall
have a clearance to noncombustible construction and gypsum wall board attached to noncombustible structures of not less than 3 inches.
73. Duct systems serving Type I hoods shall be constructed and installed so that grease cannot collect in any portion thereof, and the system shall slope
not less than one quarter inch per linear foot toward the hood.
74. Cleanouts shall be equipped with tight-fitting doors constructed of steel having a thickness greater than or equal to the duct. Doors shall be equipped
with a substantial method of latching, sufficient to hold the door tightly closed. Doors shall be designed so that they are operable without the use of
a tool. Door assemblies, including any frames and gasketing, shall be approved for the purpose, and shall not have fasteners that penetrate the duct.
Listed and labeled access door assemblies shall be installed in accordance with the terms of the listing. A sign shall be provided on access opening
panels with wording as follows: "ACCESS PANEL. DO NOT OBSTRUCT."
75. Grease duct penetration through fire-ratings shall be protected with a through-penetration firestop system such as the two layers of the 3M Fire
Barrier Duct Wrap 15A that is classified in accordance with ASTM E 814 and has an "F" and "T" rating equal to the fire-resistance rating of the
assembly being penetrated. Exposed duct wrap systems shall be protected where subject to physical damage.
Type I Grease Duct Inspection & Testing Required
76. Contractor shall perform grease duct testing, in the presence of the Engineer, as follows:
76.1. Smoke Test
76.1.1. Perform smoke test for entire grease duct system.
76.1.2. For factory-built grease ducts, be sure to allow the listed sealant to cure for a minimum of 24 hours.
76.1.3. Smoke bombs are lit and placed at the bottom of the duct system, natural upward drafts will pull the smoke to the top of the duct system.
76.1.4. Various length duct runs may require multiple smoke bombs.
76.1.5. Once the smoke has reached the top of the duct run, cap the duct, making sure it is secure.
76.1.6. Inspect all joints for leakage.
77. Contractor shall perform hood performance testing per 2012 IMC 507.16, in the presence of the Engineer.
Controls
78. Mount all thermostats 5'-0" above finished floor. 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.
79. 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.
80. ,QVWDOO HPHUJHQF\ JDV VKXWRII VZLWFK LQVLGH PHFKDQLFDO URRPV FRQWDLQLQJ ERLOHUV 6ZLWFK SODWH VKDOO EH UHG LQ FRORU DQG ODEHOHG ³*$6 %851(5
(0(5*(1&< 6:,7&+´ 6ZLWFK VKDOO EH FRPSOLDQW ZLWK 6HFWLRQ RI WKH ,0& 5HIHU WR HOHFWULFDO GUDZLQJV IRU DGGLWLRQDO
information.
81. See Sequence of Operation for additional control information.
Balancing
82. 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.
Radiant Floor Heating
83. Radiant tubing shall be 1/2" nominal diameter. Tubing shall be PEX-a crosslinked polyethylene with an oxygen diffusion barrier, manufactured by
the Engle method.
84. Piping shall be installed in continuous loops, no splices allowed. Tube centers and the maximum loop lengths are specified in the Radiant Zone
Schedule on the plans.
85. Tubing loops off each manifold shall be installed in equivalent lengths (+/- 5%).
86. The Contractor shall install manifolds as provided by the tubing manufacturer. The manifolds shall consist of a return header (including: balancing
valve for each loop, compression fitting to receive tubes and air vent) and supply header (including: manual shut-off valve for each loop and
compression fitting to receive tubes).
Snowmelt
87. Snowmelt tubing shall be 5/8" nominal diameter. Tubing shall be PEX-a crosslinked polyethylene with an oxygen diffusion barrier, manufactured
by the Engle method in accordance with ASTM F 876.
88. Piping shall be installed in continuous loops, no splices allowed. Tube centers and the maximum loop lengths are specified in the Snowmelt Zone
Schedule on the plans.
89. Tubing loops off each manifold shall be installed in equivalent lengths (+/- 5%).
90. The Contractor shall install manifolds as provided by the tubing manufacturer. The manifolds shall consist of a return header (including: balancing
valve for each loop, compression fitting to receive tubes and air vent) and supply header (including: manual shut-off valve for each loop and
compression fitting to receive tubes).
91. Secure piping in snowmelt areas by attaching tubing to wire mesh using plastic tie straps, every 3' on straight runs and at apex of turn for any
change of direction. No metal wiring shall be used.
92. Snowmelt system shall be pressure tested in accordance with tubing manufacturer's instructions as required for warranty protection. In the absence
of manufacturer's instruction, pressurize the entire snowmelt system with compressed air. Charge system to a pressure of not less than 80 psig or
more than 100 psig. Pressure test shall last for 24 hours with not less than a 2 psig drop. With system air charged, soap test all joint on and within
the manifolds. After hydrostatic test pressure has been applied, examine piping, joints and connections for leakage. Eliminate any leaks as
necessary & re-test. Any portion of tubing layout that rises as a result of being pressurized shall be re-secured to be at the proper level within the
slab structure when poured.
93. Entire snowmelt system shall be left pressurized with monitoring pressure gauge throughout installation of concrete or sand/pavers. Continually
monitor pressure on system to make certain tubing system remains intact with no leaks or punctures.
94. Manifolds shall be tagged to identify area served. Each connection on supply & return manifolds shall be permanently labeled with loop number.
95. Prior to final system fill and commissioning, the PEX tubing system and manifolds shall be chemically cleaned as prescribed by the tubing
manufacturer. Supply all tools, connections, labor, and accessories necessary to properly remove all foreign material, chemical, and residue within
the tubing system before permanently charging system and placing into operation.
96. After entire system has been properly cleaned and flushed, fill system with clean water to proper cold fill pressure. Add 50% propylene glycol, by
volume, to the snowmelt system using a positive displacement pump. Antifreeze fluid shall include corrosion inhibitors. Purge each individual loop
to eliminate air pockets in the system. After purging remove fill connection to any potable water lines to prevent any possibility of contamination.
Sequence of Operation
1. Commercial Kitchen Ventilation
A. Provide control panel for all Kitchen Exhaust Hoods, mounted remotely on wall. Panel shall interlock KEF-1, MAU-1 and automatically control Ansul
system. In the case of fire, Ansul shall be activated, MAU-1 shall be off, KEF-1 shall be on and solenoid valve in gas line to kitchen shall shut-off.
B. KEF-1 Kitchen Exhaust Fan
a. Fan shall be controlled by switch located on control panel.
b. Include a temperature sensor interlock to comply with 2012 IMC 507.2.1.1. Exhaust fan shall automatically turn on during cooking operations.
C. MAU-1 Gas Direct-fired Make-Up Air Unit
a. Fan shall run whenever exhaust fan is on.
b. ,QWHJUDO PRGXODWLQJ JDV FRQWURO YDOYH VKDOO PRGXODWH WR PDLQWDLQ GLVFKDUJH DLU WHPSHUDWXUH RI ) DGM
c. *DV KHDWLQJ VKDOO EH GLVDEOHG ZKHQHYHU 26$ WHPSHUDWXUH LV DERYH ) DGM
d. &RROLQJ :KHQ 26$ WHPSHUDWXUH LV DERYH ) ZDWHU VROHQRLG YDOYH VKDOO RSHQ WR IORZ WKH HYDSRUDWLYH FRROHU SDG
2. B-1 Modulating Condensing Boiler
A. Boiler shall be controlled by integral Lochinvar controls.
B. When enabled, boiler shall modulate to maintain heating water supply setpoint as measured at TS-1 Temperature Sensor
C. +:6 VHWSRLQW VKDOO EH UHVHW OLQHDUO\ EDVHG RQ 26$ WHPSHUDWXUH DV IROORZV ) +:6 DW ) 26$ WR ) +:6 DW ) 26$
D. +:6 VHWSRLQW VKDOO EH UDPSHG XS WR ) DGM XSRQ D FDOO IRU ZDWHU KHDWLQJ RU VQRZPHOWLQJ
E. P-1 boiler pump shall run whenever boiler is called to fire.
3. WH-1 Sidearm Water Heater
A. Upon a call for water heating from TS-2 Temperature Sensor, B-1 Boiler shall be enabled and P-2 pump shall start.
B. 3 SXPS VKDOO F\FOH WR PDLQWDLQ WDQN WHPSHUDWXUH VHWSRLQW ZKLFK VKDOO EH ) DGM
C. %RLOHU +:6 VHWSRLQW VKDOO EH UDPSHG XS WR ) DGM XSRQ D FDOO IRU ZDWHU KHDWLQJ
D. P-7 DHW recirculation pump shall be controlled automatically by integral controls. Set to "Auto Mode".
4. Radiant Floor Heating
A. Upon a call for first stage space heating from wall mounted thermostat, on/off control valve shall open and P-3 pump shall start. B-1 Boiler shall be
enabled.
B. MV-1 Mixing Valve shall be controlled by a Tekmar 360 mixing control. Tekmar control shall modulate position of MV-1 mixing valve to maintain
HWS temperature setpoint as measured by TS-3 Temperature Sensor.
C. +:6 VHWSRLQW VKDOO EH UHVHW OLQHDUO\ EDVHG RQ 26$ WHPSHUDWXUHV DV IROORZV ) +:6 DW ) WR ) +:6 DW ) 26$
5. HC-1 Heating Coil
A. HC-1 heating coil shall operate in 3 distinct modes as follows below:
A.A. DISCHARGE AIR TEMPERING: During normal operation (no calls for cooling or second stage heating from T1 Thermostat), P-4 pump speed
VKDOO PRGXODWH WR PDLQWDLQ GLVFKDUJH DLU WHPSHUDWXUH VHWSRLQW RI ) DGM DV PHDVXUHG E\ 76 7HPSHUDWXUH 6HQVRU ZKLFK VKDOO EH PRXQWHG LQ
the supply air duct downstream of HC-1 Heating Coil. Pump speed shall be controlled by a Tekmar 356 mixing control. Provide an air proving
switch to enable B-1 Boiler whenever air flow is sensed.
A.B. SECOND STAGE SPACE HEATING: Upon a call for second stage heating from T1 Thermostat, P-4 pump shall run full speed (bypass the
Tekmar 356 controller) to provide heated air to the space. B-1 boiler shall be enabled if air flow is sensed by air proving switch.
A.C. COOLING: Upon a call for cooling from T1 Thermostat, P-4 pump shall turn off.
6. Snowmelting
A. Provide a Tekmar 667 Snowmelt Control (for variable speed pumping) and a Tekmar 094 Snow Sensor with Tekmar 091 Snow Socket.
B. Upon a call for snowmelting from sensor located is SA-1 Snowmelt Area, P-5 & P-6 pumps shall start & B-1 Boiler shall be enabled.
C. 7HNPDU VKDOO YDU\ VSHHG RI 3 SXPS WR PDLQWDLQ 606 WHPSHUDWXUH VHWSRLQW DV PHDVXUHG E\ 76 7HPSHUDWXUH 6HQVRU 6HWSRLQW VKDOO EH )
(adj.).
7. Fans
A. EF-1 Bath Exhaust Fan shall be controlled by existing controls (interlock with lights).
B.
C. EF-3 Exhaust Fan shall be controlled by existing controls. Fan shall run continuously.
8. EWH-1 Electric Wall Heater
A. EWH-1 electric wall heater shall be controlled by integral thermostat. Upon a call for heat, fan and heater shall both start.
9. LS-1 Lift Station
a. Lift station shall be controlled by duplex control panel.
b. When the "stop" and "lead" floats are closed pump 1 will energize and the pump 1 run light will illuminate. Pump 1 will remain operational until the
"stop" float opens.
c. The next time the "stop" and "lead" floats are closed the alternating circuit will energize pump 2 and the pump 2 run light will illuminate. Pump 2
will remain operational until the "stop" float opens. This cycle will repeat each time the fluid level rises and falls.
d. If the fluid level continues to rise after the first pump has been energized the "lag" float will close. When the "lag" float has closed the second pump
will energize. Both pumps will remain operational until the "stop" float opens.
e. In a three float system when the "lag" float is closed the following will also occur:
e.a. The external high water light will illuminate.
e.b. The audible high water alarm horn will sound.
e.c. The auxiliary dry contacts will close. A signal shall be sent to the owner.
9/23/16
11/16/16