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SEALANT ALL SIDES
-MECHANICAL SPECIFICATIONS Town of van I Stamp i
PLENUM DUCT SHALL EXTEND EXTERIOR WALL General 23.Duct Insulation Schedule: DRa ��
THROUGH THE WALL AND, FOR APPR VED
THE BOTTOM AND SIDES, SHALL 10/18/2 17
BE FLUSH WITH THE OUTER LOUVER WITH1. Immediatelynotify the Engineer of any discrepancies. Service Thickness (in.) Type Jacket 12:00:0 AM
SURFACE OF THE WALL DRAINABLE BLADES SA Rectangular ducts 1.0 Liner n/a
EXTENDED SILL OR FLANGE 71 2. It shall be assumed that all subcontractors are experienced and thoroughly knowledgeable in their respective areas of OA Rectangular ducts 1.0 Liner n/a
- - - BIRD SCREEN the construction industry and shall perform in a responsible manner in an appropriate construction sequence. SA Round ducts 1.0 Wrap n/a
P 3. Do not scale drawings. Verify dimensions in field prior to commencement of work. Duct Liner shall be 2.0 PCF, U.L. rated, glass fiber insulation with a continuous vapor barrier.
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71 DUCTS ARE: PLANS). 4. It is the intent of these drawings and specifications to establish a standard of quality. The Engineer reserves the right Duct Wrapshall be 1.0 PCF, U.L. rated, flexible, non-combustible, blanket insulation complyingwith ASTM C 553 2 w
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[ ._� to take exceptions to approve methods and materials not reflected herein. Vapor barrier jacket shall be FSK (foil-scrim-kraft). 04 ,_ _ NI ii Z
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5. Failure to order, or release order, for materials and/or equi ment will not be accepted as a reason to substitute Piping
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L - J - - - alternate materials, equipment, or installation methods. H- a
ENLARGEMENT 1 PLENUM AS SHOWN ON , cc 24.Refrigerant piping shall beprovided, installed, tested, evacuated and charged, in accordance with the manufacturers E
.I,i PLANS, 12" MINIMUM g p P g g O 0
- DEPTH. PLENUM 6. Work shall be performed in a workmanlike manner to the satisfaction of the Owner, Architect & the Engineer. recommendations, ANSI, ASHRAE, and ARI's Safety Code for Mechanical Refrigation, state & local codes. All of u j) 11-
DRILL WEEP HOLES IN THE SHALL BE UNLINED
BOTTOM FRAME OF THE L AND WRAPPED PER the joints shall be brazed with a filler material that complies with AWS classification BCuP-5. O \ Z 0
LOUVER FOR DRAINAGE SPECS. 7. Labor, materials, and equipment shall conform to the latest applicable editions of local, State of Colorado, and
SEAL LOUVER PLENUM National Codes and ordinances. If conflict between those publications exists, the most stringent requirement shall 25.Refrigeration Piping - Type 'L', ACR Grade copper, cleaned, dehydrated, capped and charged with clean nitrogen at • - > X F
WATERTIGHT WITH SOLDER SLOPE 2" PER apply. the factory. Use wrought copper fittings and hard solder having a minimum melting point of 1100°F for buried lines, ig t7 I "< w
LINEAR FOOT
OR 100 YEAR MASTIC no lead solder for non-buried lines. Valves and specialties shall be standard brass or bronze valves for refrigeration Zl il (L
SEE ENLARGEMENT 8. The drawings show the intent of the mechanical systems but do not show all details required. It is the responsibility service. p� % l uzi
L0,.-V I N S I Ai I A M ON D TA L I of the Contractors to install complete & operable systems, which conform to the manufacturers' installations W I-
NO SCALE A instructions & industry standards. 26.A/C Condensate Drain Piping - Copper. Z =
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9. Systems shall be tested for proper operation. If tests show work is defective, Contractor shall make corrections 27.Seal annular space of all piping penetrations through fire-rated assemblies with approved fire caulk/ sealant (3M, Hilti Z 0 ~i O
necessary at no cost to Owner. or approved equal). W O n
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(ANNA 10. It is the Contractors' and manufacturers' responsibility to assure themselves that the code authorities will approve any Ductwork ,-` uiN
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product to be installed on the project. C
28.Duct sizes shown on drawings are outside (sheet metal) duct dimensions. } t
11. Systems shall be professionally labeled. Piping shall be labeled with color coded commercial grade labels indicating w`-► 01d ft
piping service and flow direction. Equipment, pumps and valves shall be labeled with engraved plastic or metal tags 29.All ductwork shall be sealed airtight with duct mastic. Where duct tape is used, it shall be listed and labeled in 0 l-
and an equipment/valve schedule shall be provided and mounted on the mechanical room wall. Equipment labels accordance with UL 181. PE Stamp -i z
shall follow the same nomenclature as the mechanical drawings. oa 0
30.Duct Pressure Class & Duct Seal Class Schedule: i 0
Electrical 1- o
Service Pressure Class Seal Class 1- ff
12. Contractor must carefully verify electrical service voltage and phase available before ordering any equipment. SA Rectangular ducts 2" we C >- 0-
OA Rectangular ducts 2" we C m O
13. The following are to be furnished by MC and wired by EC : equipment motors, magnetic starters, line voltage SA Round ducts 1" we CCi
thermostats, factory disconnect switches (if specified as part of factory wired equipment) resistance heaters, fire and 0 0
smoke detectors. 31.Provide turning vanes in all mitered rectangular elbows. N o
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14. The following are to be furnished and wired by EC: disconnect switches, thermal overload switches, manual 32.Provide manual volume dampers for air balancing, at ALL round duct take-offs. o
operating switches and contactors.
33.Make all final connections to supply GRD's located in lay-in ceilings with acoustic flexible duct. Minimum length >- m
15. The following are to be furnished and wired by MC: low voltage thermostats, control transformers, control relays, shall be 3 feet. Maximum length shall be 6 feet. HT1 m p
control panels, motorized valves, motorized dampers, pilot lights, multi-speed switches and interlocks. �••L_ Q
34.All ductwork or surfaces which are visible behind a grille, register, diffuser or louver shall be painted flat black by the _ i
Shop Drawings mechanical contractor. O
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16. Submit HVAC and plumbing shop drawing submittal data. Submittal to be packaged and indexed in a neat and 35.Sheet metal and fittings to be pursuant to SMACNA and ASHRAE standards. ^ O2 Z s
orderlymanner. Equipment to s shall be labeled and shall match the tags used in the drawings. Q
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36.Contractor to coordinate exact location of grilles and registers before installation. I a 0 i
Remodel, Demolition & Unforeseen Conditions (V I-
Testing, Adjusting & Balancing O V N
17. Visit site prior to bid and verify the conditions. Include in the bid, costs required to make work meet existing-� 0 iw z
conditions, whether indicated or not. 37.Air flows must be balanced, and fan belts, pumps, and drive systems adjusted as required. Balance Contractor shall Q 1. z �▪ IL
furnish subsequent air balances after acceptance of the building.
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18. Provide mechanical demolition required. Refer to architectural demolition drawings for location and extent of 0 in a
demolition required. Visit site prior to bid to determine extent of work involved. Provide labor and materials as 38.Submit a written balance report. Balancing procedures shall be in accordance with NEBB or AABC guidelines for A U 1 0
required to maintain and/or restore continuity of service to existing systems. proportional balance. Submit report on standard NEBB forms. 124N ,_
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19. In as much as design for remodel, renovation and/or rehabilitation requires that certain assumptions be made 39.Airside measurements shall include all motor amperage, voltage readings, motor RPM, fan RPM, fan CFM, fan inlet W w 0
regarding existing conditions and because some of these assumptions cannot be verified without destroying otherwise static pressure, fan outlet static pressure, and grille, register & diffuser CFM. ('y V
adequate or serviceableportions of the building, the Engineer cannot assure the Owner or the Contractor that the i�_i '-
professional
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professional consulting services herein encompass all contingencies. Field coordination during construction is 40.Adjust flows to within 10% of required quantity. If actual quantity is less than 90% of design, investigate cause, O II N z
imperative. Contractors bidding this work must make reasonable allowances for unseen conditions and should attempt to rectify and notify Engineer. Submittal of balance report with less than required flows without explanation g z o
include associated allowances in their bids noted as such. is cause for rejection of report. in (L
Piping Insulation & Duct Liner 41.Submit three copies of all submittals in addition to any required by the Contractor. These copies shall be retained by )- m
the Owner, Contractor and Engineer.
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20.Piping Insulation Schedule: > zz
Project Close-out U 0 '-
Service
Service Thickness (in.)
Refrigerant (1" pipe and less) 0.5 42.Provide new clean air filters in all air handling equipment prior to system acceptance. d
Refrigerant (1-1/8" pipe and greater) 0.75 Issued For iz
Condensate Drain 0.0 43.Clean all new equipment, ducting, piping, etc. of dust and debris from construction. No. Date Comment 1- 0
1 8/4/11 PROGRESS SET s B
All piping insulation shall be U.L. approved, white, all service, glass fiber, snap-on, pipe insulation. Insulate fittings 44. 2 5/10/11 PROGRESS SET I- d
with glass fiber blanket insulation and pre-molded PVC covers. Provide submittal. Refer to "Piping" section below 3 O/11/11 BID SET 0• 0
for refrigerant piping/insulation requirements. 45.Furnish HVAC as-built/ record drawings within 90 days of system acceptance. 4 8/15/11 ADDENDUM #I 1- El
5 10/16/11 DRB REVISION 0
21.Insulation for all types of piping shall be carried full size through pipe hangers or pipes shall be supported with 46.Furnish O&M manuals for mechanical systems within 90 days of system acceptance. Q w
vibration clamps. (L- 1_
47.Provide Owner training of equipment operation & maintenance, including a detailed project walk through of the ME CI-AN I CAL N w
22.Cover outdoor refrigerant piping and insulation with an aluminum jacket. The jacket shall be held in place by a mechanical systems SFE CIF ICAT IONS w (y z
continuous friction type joint, providing a positive weather seal over the entire length of jacket. The circumferential
joints shall be secured with preformed aluminum jackets, two-piece elbows, and flange covers, secured with steel 0 tt z
bands. END OF MECHANICAL SPECIFICATIONS. u- )_
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