HomeMy WebLinkAboutE17-0216_plans 5_1509028151.pdf ..10OFP
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Mechanical Specifications
General
Antifreeze Solutions
1. Immediately notify the Engineer of any discrepancies.
34. Fill heating water and snowmelt system with 40%propylene glycol/60%water solution, by volume, for freeze protection to -7°F and burst
2. It shall be assumed that all subcontractors are experienced and thoroughly knowledgeable in their respective areas of the construction industry and protection to -60°F. Include corrosion inhibitors.
shall perform in a responsible manner in an appropriate construction sequence. 0 14 I cNt
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3. Do not scale drawings. Verify dimensions in field prior to commencement of work. E u 1- Lu
3 5. Duct sizes shown on drawings are outside (sheet metal) duct dimensions. Ix_W cru ° z
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 , @ az
methods and materials not reflected herein. 3 6. All ductwork shall be sealed airtight with duct mastic. Where duct tape is used, it shall be listed and labeled in accordance with UL 181.
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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 3 7. All ductwork shall be sealed airtight with duct mastic. Duct tape is prohibited. OC~' �_ '� ~
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installation methods. 0
3 8. Sheet metal and fittings to be pursuant to SMACNA and ASHRAE standards. U U
6. Work shall be performed in a workmanlike manner to the satisfaction of the Owner&the Engineer. 0 2 ( z
3 9. All ducts shall be 26 gauge minimum. Duct gauge and construction shall conform to SMACNA HVAC Duct Construction Standards. C� �Q 0
7. Labor,materials, and equipment shall conform to the latest applicable editions of local, State of Colorado, and National Codes and ordinances. If O c`i
conflict between those publications exists,the most stringent requirement shall apply. 48. Seal annular space of all ducting penetrations through fire-rated assemblies with approved fire caulk/sealant(3M,Hilti or approved equal). • > X
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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 Controls II: Z D i V EL
complete&operable systems,which conform to the manufacturers'installations instructions &industry standards. CC to
49. Mount all thermostats 4'-0" above finished floor. LU � 1-
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9. Systems shall be tested for proper operation. If tests show work is defective, Contractor shall make corrections necessary at no cost to Owner. - ii
50. Thermostats &remote temperature sensors shall not be installed above heat emitting equipment, including wall mounted touch screen controls. Do Z 00 4i D
10. It is the Contractors' and manufacturers'responsibility to assure themselves that the code authorities will approve any product to be installed on the not mount on exterior walls or above/below forced air supply registers. 12:t7 0 T XI-
project. Z 61 0
51. All thermostats shall have a temperature range suitable for the application and have adjustable set points. The thermostats shall be able to display `) 0 in I-
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11. Systems shall be professionally labeled. Piping shall be labeled with color coded commercial grade labels indicating piping service and flow temperature setpoint and room temperature. All thermostats shall be approved by the Owner. 0
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direction. Equipment, fans,pumps,valves, switches and controls shall be labeled with engraved plastic or metal tags and an equipment/valve (evs.fv% w
schedule shall be provided and mounted on the mechanical room wall. Equipment labels shall follow the same nomenclature as the mechanical 52. Freeze Detection Thermostats. Each supply system with water coils taking outside air shall have a freeze detection thermostat located on the O �
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drawings. downstream side of the coil. Thermostats shall be of adjustable electric contact type, silver plated,manual reset with 20' flexible sensing bulb of tr.-1.- G . u u,_
increment type with any section capable of actuating mechanism on temperature drop below set point,thermostat shall stop fan(s)and close outside y � VN-10.- 0
12. Offset piping, ductwork, etc. as necessary to accommodate structure,beams, columns, and existing equipment. air damper. They shall have an isolated set of contacts for alarm system. V-Leo. w
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13. Submit entire HVAC shop drawing submittal data at one time. Submittal to be bound in three-ring binders, indexed in a neat and orderly manner. 53. Install emergency power off(EPO) inside mechanical rooms containing boilers. Switch plate shall be red in color and labeled"GAS BURNER PE Stamp _1 N
Partial submittals will not be accepted. Submittals shall include,but not be limited to: equipment, fixtures, insulation, diffusers,pumps, fans,piping, EMERGENCY SWITCH". Switch shall be compliant with Section 1006.8 of the 2015 IMC. Refer to electrical drawings for additional information. �����."i J 5 Z
valves,boilers, furnaces, and fire protection. '�,:'. ��p e�S 11 [0 0
54. See Sequence of Operation for additional control information. c . " '•'..\0 x.IN _
Remodel,Demolition&Unforeseen Conditions �. • �e i- p
Balancing % 30290
14. 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. i >- (L
55. Air and water flows must be balanced, and fan belts,pumps, and drive systems adjusted as required. Balance Contractor shall furnish subsequent air it 8/4/17 ��1 I-
15. In as becauTse some of theseuch as design or remodel,
cannot be verified wor ibholuttion destroyinges that otherwise ade adequate ortain r serviceablens be eportions of the burding ilding,the Engineer itions and balances after acceptance of the building. il'�1Fss/Q��•L(A\-,.4.,-
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cannot assure the Owner or the Contractor that the professional consulting services herein encompass all contingencies. Field coordination during 56. Submit a written balance report. Balancing procedures shall be in accordance with NEBB or AABC guidelines for proportional balance. Submit A‘‘.....-00'' Z• 0
construction is imperative. Contractors bidding this work must make reasonable allowances for unseen conditions and should include associated report on standard NEBB forms. N 13p
allowances in their bids noted as such. wi
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16. Be responsible to field verify existing equipment or ductwork remaining to be reconnected to new or existing systems. Provide ductwork,piping, 0 • in
controls, diffusers, etc., as required to restore continuity to system(s). w
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17. All removed piping,ductwork, equipment, etc. are to be disposed of by Contractor unless noted otherwise. ZJ
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18. All existing support rods and straps now supporting ducts,pipes, air tubing, electrical conduit, etc. that are removed to allow room for installation of 01 ti ii >
new equipment shall be relocated and reinstalled, or replaced if damaged. al OLU E
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19. Extend and modify existing fire protection systems to new and remodeled areas if required. P4 ‘101I-2 ..,, z
Sequencep of Operation r--� a p4 O
Insulation / 1 z Q
20. Piping Insulation Schedule: 1. B-1,B-2, B-3 Boilers (Central) E to
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a. Integral Lochinvar controls shall stage, modulate, and rotate B-1, B-2, & B-3 boilers to maintain heating water U IY '-
Service
Service Thickness(in.) vi
setpoint at temperature sensor TS-1. PCI IL
HWS/R(less than 1.5"pipe) 1.5 b. Heating water temperature shall be reset based on outdoor air temperatures (180°F @ -20°F to 90°F @ 70°F, adj). O w I
HWS/R(1.5"pipe and greater) 2.0 c. HWS setpoint shall be ramped up to 180°F (adj) on any call for domestic hot water heating. 1 z (l_
Domestic Hot Water 1.0 Iii 0
d. HWS setpoint shall be ramped up to 130°F (adj) on a call for snowmelting. z ELI
Domestic Cold Water 0.5Z We. O w N
Domestic Hot Water Recirculation 1.0boiler pumps shallrun whenever associatedis calledto fire.
P-1 P-2, or P-3 boiler ' ` _ 1-
f. FC-12 blower shall be interlocked to run whenever a boiler is called to fire, to provide combustion air. F�J--II v I-
Piping insulation shall be U.L. approved,white, all service, glass fiber, snap-on,pipe insulation. Insulate fittings with glass fiber blanket insulation „ w O_
and premolded PVC covers. 2. WH-1 &WH-2 Indirect Water Heaters ^ O N
a. Upon a call for heating from temperature sensor TS-2 at WH-1 (set at 140°F adj), P-5 water heater pump shall F+� _1 _
21. Insulation for all types of piping shall be carried full size through pipe hangers or pipes shall be supported with vibration clamps. start. Boiler HWS setpoint shall be ramped up to 180°F (adj). PCIw 0IY ii
b. Upon a call for heating from temperature sensor TS-3 at WH-2 (set at 140°F adj), P-6 water heater pump shall >-
22. Externally wrap all unlined Outside Air(OA) ductwork and louver plenums with 1"thick, 1.0 PCF,U.L. rated, flexible,non-combustible,blanketstart. Boiler HWS setpoint shall be ramped up to 180°F (adj). ›°
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insulation complying with ASTM C 553. Vapor barrier jacket shall be FSK(foil-scrim-kraft). c. RP-1 domestic hot water recirculation pump shall be controlled automatically. P z 1Y
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Piping 3. FC-12 Fan Coil w (1-
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23. Domestic Hot, Cold&Recirculation piping inside building-type'L'copper water tube,wrought copper fittings and no lead solder. a. COMBUSTION AIR: Upon a call for boiler heating, fan coil blower shall start. Once airflow has been proven by (/� (1, 1
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fan proving switch the boilers shall be permitted to fire. Provide Field Controls CAC-120's, Tjernlund UC1's, or �/ s 2
24. Condensing Boiler Condensate shall be neutralized via a neutralization basin before discharge into building drainage system. Condensate piping equal. il O al O
shall be PVC or other approved material suitable for pH levels of 3. b. COOLING: Provide a wall-mounted thermostat for cooling operation. Wire in parallel with combustion air -4-1 a
controls. Upon a call for cooling, blower shall start and heating valve shall be enabled. 0} 4
25. Gas Piping- Schedule 40 black steel pipe, 150 lb. malleable iron screwed fittings on above ground pipe,welded fittings with all piping coated and
c. HEATING VALVE: Provide a 2-way modulating control valve on heating water return pipe and a digital valve (Y _
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 controller. Upon a call for heating during fan coil operation, digital valve controller shall modulate control valve 0_ 0406.4.1. CSST pipe is prohibited except for final connection to boilers. ii
position to maintain discharge air temperature (set at 55° adj) at TS-6 temperature sensor located at fan coil d
discharge. Heating water pump P-6a&b will already be operating (see "Pumps" sequence for additional Issued For Z 0-
26. Gas Valves-Lubricated plug valve 175 lb. W.O.G. iron screwed or flanged. I- 0
information on P-6a&b). No. Date Comment U
27. Gas Pressure Regulator(GPR)Valves -Include shut-off valve upstream of valve and capped tees upstream and downstream of valve for pressure 1 7/19/I1 COORDINATION D D
testing. For modulating condensing boilers, install a minimum of 10' of gas piping downstream of regulator to serve as a buffer during start-up. 4. Snowmelting 2 8/4/11 PERMIT i- _i
Refer to boiler manufacturer installation instructions for additional requirements. Install vent limiting device or vent pipe to the outside, as required. a. Provide a Tekmar 670 automatic snowmelting control. 0 Z
b. Upon a call for snowmelting from the controller, boilers shall be enabled and P-7 snowmelt pump shall start. 3 E
28. Copper pipe Valves and Specialties: Boiler HWS setpoint shall be ramped up to 130°F (adj). 0
c. Tekmar 670 shall modulate MV-1 position to maintain snowmelt water supply at temperature sensor TS-7(set at Z0
Gate Valves: Bronze, Class 125,200 lb. W.O.G. J w
Ball Valves: Bronze, Class 125,200 lb. W.O.G. 130°F adj). 0_ '-
Check Valves: Bronze, Class 125,200 lb. W.O.G. MECHANICAL N in
Balancing Valves: 125 psig w.p. for 250F service tight shut-off, Illinois dual-purpose,balancing/shut-off valve,Hoffman, Sarco, or equivalent. 5. Pumps SPECIFICATIONS 4 w ty U
a. P-1 B-1 boilerum on whenever boiler is called to fire. = z
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29. Support pipe with rod and clevis or clamps. No pipe tape allowed. b. P-2 B-2 boiler pump: on whenever boiler is called to fire. OPERATION O i ill z
c. P-3 B-3 boiler pump: on whenever boiler is called to fire.
30. Dielectric Unions-Furnish and install a dielectric union at all connections where non-ferrous material is in contact with ferrous material and fluid is d. P-4 WH-1 water heater pump: on upon a call for DHW heating from TS-2 temperature sensor. - _I w
not protected with corrosion inhibitors. e. P-5 WH-2 water heater pump: on upon a call for DHW heating from TS-3 temperature sensor. z N z
f. P-6a&b space heating pumps: pumps shall be staged by the Grundfos Genie Bus controls. Only one pump is � Et z
31. Grade and valve all heating water piping with 3/4"hose end valves to permit drainage of the system. Vent all high points in equipment rooms as4 0- w
required to run ata time. The second pump is for standby operation for the case that the other pump fails. Pumps X
necessary with automatic air vents piped to convenient drain. All high points in system outside of equipment rooms with manual air vents asshall be rotated for equal run times. Pump shall run constantly whenever OSA temperature is less than 70°F (adj). u-!
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required to relieve air in the system.
pGrundfos Magna pumpis equipped with an integrated variable frequency converter to automaticallyvary pump Project No. Scale: 0 Q
32. Seal annular space of all piping penetrations through fire-rated assemblies with approved fire caulk/sealant(3M, Hilti or approved equal). speed. Set pump to run on "Differential-Temperature" control mode. Pump speed shall vary to maintain 20°F (adj) 11051.00 N/A O d tk
temperature differential between TS-4 and TS-5 temperature sensors. Set "Flow Limit" setting to 42 gpm. p z O
Boiler Flue& Combustion Air Piping g. P-7 snowmelt pump: on whenever there is a call for snowmelting. Drawn By: Checked By: 4 w 0
h. RP-1 domestic hot water recirculation pump: controlled automatically by integral controls. J SW JRz i
33. Boiler flue piping shall either be CPVC (complying with ASTM F441) or a polypropylene venting system(listed in accordance with ULC-S636, and w
rated for flue gas venting systems). Z Z IL
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