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- MECHANICAL SPECIFICATIONS
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General Piping Controls I :0166
1. Immediately notify the Engineer of any discrepancies. 39.Domestic Hot& Cold piping inside building-Buried lines type 'K'copper water tube, wrought copper fittings and 1100F solder. 76.Mount all thermostats 5'-0" above finished floor. *lb
Non-buried lines,type 'L' copper water tube,wrought copper fittings and no lead solder. Provide alternate pricing for PEX tubing (no
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2. It shall be assumed that all subcontractors are experienced and thoroughly knowledgeable in their respective areas of the construction oxygen diffusion barrier necessary).Unless otherwise noted,piping on plans has been sized for copper, and if ASTM PEX piping is used, 77.Thermostats &remote temperature sensors shall not be installed above heat emitting equipment, including wall mounted touch screen a '
industry and shall perform in a responsible manner in an appropriate construction sequence. increase size of piping one nominal size from size shown on plans, ie. Plans call for a 3/4"line&PEX is to be substituted, a 1"PEX line controls. Do not mount on exterior walls or above/below forced air supply registers.
shall be installed. 08/05/14
3. Do not scale drawings. Verify dimensions in field prior to commencement of work. 78.All thermostats shall have a temperature range suitable for the application and have adjustable set points. The thermostats shall be able to
40.Waste &Vent piping inside building: display temperature setpoint and room temperature. All thermostats shall be approved by the Owner.
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. Waste 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 79.Install emergency gas shutoff switch inside mechanical rooms containing boilers. Switch plate shall be red in color and labeled"GAS v li
standard weight, galvanized steel pipe with black, C.I. drainage fittings. BURNER EMERGENCY SWITCH". Switch shall be compliant with Section 1006.8 of the 2012 IMC. Refer to electrical drawings for > x z
5. Failure to order, or release order, for materials and/or equipment will not be accepted as a reason to substitute alternate materials, additional information. kc 1 -4
equipment,or installation methods. Waste lines below grade and all Vent lines may be Schedule 40 ABS-DWV plastic pipe and fittings (ASTM D2661)or Schedule 40 ll II 0
PVC-DWV plastic pipe and fittings (ASTM D2665).All pipe and fittings shall bear NFS-DWV mark and shall be joined with solvent 80.See Sequence of Operation for additional control information. W 0 w
6. Work shall be performed in a workmanlike manner to the satisfaction of the Architect& the Engineer. weld joints as recommended by the manufacturer. Z _
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7. Labor, materials, and equipment shall conform to the latest applicable editions of local, State of Colorado, and National Codes and 41.Heating Water piping -Piping may be type'K' copper for all buried lines using wrought copper fittings and 1100F solder. For non-buried - 0
ordinances. If conflict between those publications exists,the most stringent requirement shall apply. piping,type 'L'copper,wrought copper fittings, and no lead solder. All buried pipe shall be surrounded with 4" of clean sand. Provide 81.Air and water flows must be balanced, and fan belts,pumps, and drive systems adjusted as required. Balance Contractor shall furnish x ce
alternate price for PEX tubing (with oxygen diffusion barrier). Unless otherwise noted,piping on plans has been sized for copper, and if subsequent air balances after acceptance of the building. iy 0
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8. Provide record drawings to architect. Drawings shall include all addendum items, change orders, alterations,re-routings, etc. PEX piping is used, increase size of piping one nominal size from size shown on plans. ie. Plans call for 3/4"piping&PEX is to be 11\ a) _
substituted, a 1"PEX line shall be installed. 82.Submit a written balance report. Balancing procedures shall be in accordance with NEBB or AABC guidelines for proportional balance. ,,v,,,,% N
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 Submit report on standard NEBB forms. \,
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install complete & operable systems, which conform to the manufacturers' installations instructions & industry standards. 42.PEX piping shall be supported by continuous cradles supplied by the manufacturer. � w
83.Airside measurements shall include all motor amperage,voltage readings,motor RPM, fan RPM, fan CFM, fan inlet static pressure, fan .T\- . 0 w
10.Systems shall be tested for proper operation. If tests show work is defective, Contractor shall make corrections necessary at no cost to 43.Condensing Boiler Condensate shall be neutralized via a neutralization basin before discharge into building drainage system. Condensate outlet static pressure, and exhaust grille CFM. > ( z► z
Owner. piping shall be PVC or other approved material suitable for pH levels of 3. 1.1 �, I-
84.Hydronic measurements shall include all motor amperage,voltage readings,motor RPM,pump RPM,pump GPM as calculated from the lY
11.It is the Contractors' and manufacturers'responsibility to assure themselves that the code authorities will approve any product to be 44.Refrigeration Piping-Type 'L',ACR Grade copper, cleaned, dehydrated, capped and charged with clean nitrogen at the factory. Use pump curve, inlet and outlet pressures at pumps, and temperature and pressure drop at all coils. Seal
installed on the project. wrought copper fittings and hard solder having a minimum melting point of 1100F for buried lines,no lead solder for non-buried lines. 100 LI
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Valves and specialties shall be standard brass or bronze valves for refrigeration service. Buried pipe shall be surrounded by 4" clean sand. 85.Adjust flows to within 10% of required quantity. If actual quantity is less than 90% of design, investigate cause, attempt to rectify and r C . .....4
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12.Systems shall be professionally labeled. Piping shall be labeled with color coded commercial grade labels indicating piping service and notify Engineer. Submittal of balance report with less than required flows without explanation is cause for rejection of report. �� ��*•��7/10/1404: 6 Ila ~
flow direction. Equipment, pumps and valves shall be labeled with engraved plastic or metal tags and an equipment/valve schedule shall 45.Gas Piping - Schedule 40 black steel pipe, 150 lb. malleable iron screwed fittings on above ground pipe,welded fittings with all piping •• �`: I a
be provided and mounted on the mechanical room wall. Equipment labels shall follow the same nomenclature as the mechanical drawings. coated and wrapped on buried pipe. 86.Submit three copies of all submittals in addition to any required by the Contractor. These copies shall be retained by the Owner, 39
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Contractor and Engineer. f� a ' �/ 0
13.See architectural reflected ceiling plan for all ceiling penetrations. 46.Gas Valves -Lubricated plug valve 175 lb. W.O.G. iron screwed or flanged.
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14.Coordinate architectural, and electrical drawings with mechanical drawings prior to installation. 47.Copper pipe Valves and Specialties: 1t�`OSA' ` d fY
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15.Offset piping, ductwork, etc. as necessary to accommodate structure,beams, columns, and existing equipment. Gate Valves: Bronze, Class 125, 200 lb. W.O.G. 0 ~
Ball Valves: Bronze, Class 125, 200 Ib. W.O.G. SEQUENCE OF OPERATION m p
Electrical Check Valves: Bronze, Class 125, 2001b. 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 1. B-1,2,&3 Boilers
16.Contractor must carefully verify electrical service voltage and phase available before ordering any equipment. equivalent. a. Boilers shall be staged and rotated by integral Lochinvar controls. �N �U
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b. Boilers shall maintain HWS setpoint at TS-1 temperature sensor. HWS setpoint shall be reset based on outdoor temperatures 0 0
17.The following are to be furnished by MC and wired by EC: equipment motors, magnetic starters, line voltage thermostats, factory 48.Support pipe with rod and clevis or clamps.No pipe tape allowed. (180°F @-20°F to 120°F @ 70°F).
disconnect switches (if specified as part of factory wired equipment)resistance heaters, fire and smoke detectors. c. HWS setpoint shall be ramped up to 180°F on any call for domestic hot water heating. 1- it
49.The piping material shall be cast iron at all pipe penetrations of fire-rated assemblies above the crawlspace. d. HWS setpoint shall be ramped up to 150°F on any call for snowmelting. r r i - 0
18.The following are to be furnished and wired by EC: disconnect switches,thermal overload switches, manual operating switches and e. P-1,2, or 3 boiler pump shall run whenever associated boiler is firing. O W m Q
contactors. 50.Provide expansion joints or loops on all heating water piping runs in excess of 50'. Z U
2. WH-1 Water Heater - � 0 0
19.The following are to be furnished and wired by MC: low voltage thermostats, control transformers, control relays, control panels, 51.Dielectric Unions - Furnish and install a dielectric union at all connections where non-ferrous material is in contact with ferrous material a. Upon a call for heating from TS-2 temperature sensor,P-4 water heater pump shall start.
motorized m riz m r pilot lights, m lti- switches andinterlocks. °
oto ed motorized dampers,s,p o multi-speed sw tc es and fluid in not protected with corrosion inhibitors. b. Boiler HWS setpoint shall be ramped up to 180 F. � Q t (Y 0_
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Shop Drawings 52.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 3. Space Heating 0
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rooms as necessary with automatic air vents piped to convenient drain. All high points in system outside of equipment rooms with manual a. Upon a call for space heating from any zone thermostat, associated on/off control valve shall open and P-5a/b heating water U Ni 1- al
20.Submit entire HVAC shop drawing submittal data at one time. Submittal to be bound in three-ring binders, indexed in a neat and orderly air vents as required to relieve air in the system. pump shall start. [�]0001 '-
manner. Partial submittals will not be accepted. Submittals shall include, but not be limited to: equipment,pumps,piping,valves, and .. .4 Z
boilers 53.Provide plastic grommets on all heating water pipingpassin through wood joists and studs. 4. Snowmelting O � Q
a. Provide an automatic snowmelting control(Tekmar 667 or equal)with a snow/ice sensor(Tekmar 090/091 or equal). LU -4
Remodel,Demolition & Unforeseen Conditions 54.Install plumbing clean-outs as required b applicable codes. b. Upon a call for snowmelting from snow/ice sensor, future snowmelt um and future heat exchanger um shall start. Futurep4 U
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heat exchanger pump speed shall vary to maintain snowmelt supply temperature of 120°F at TS-3 temperature sensor. .. n z_
21.Visit site prior to bid and verify the conditions. Include in the bid, costs required to make work meet existing conditions, whether Boiler Flue& Combustion Air Piping c. Tekmar control shall be setup for WWSD(warm weather shut down)at approximately 40°F (adj). System shall not operate if u_
indicated or not. outdoor temperature is above this setting. O a Z ft
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55.Boiler flue piping shall be CPVC, complying with ASTM F441. d. Tekmar control shall be setup for CWCO (cold weather cut off) at approximately 10°F(adj). System shall not operate if 4
22.Provide mechanical demolition required. Refer to architectural demolition drawings for location and extent of demolition required. Visit outdoor temperature is below this setting. 1. N
site prior to bid to determine extent of work involved. Provide labor and materials as required to maintain and/or restore continuity of 56.Boiler combustion air piping shall be PVC, complying with ASTM D1785. 0 0 O w I-
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service to existing systems. 5. FC-1 Fan Coil& CU-1 Condensing Unit
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Antifreeze Solutions a. COOLING: Upon a call for cooling,blower shall start and condensing unit shall be enabled. Condensing unit shall cycle to IIu Z
23.In as much as design for remodel, renovation and/or rehabilitation requires that certain assumptions be made regarding existingconditions maintain room setpoint. Setpoint should be set to be higher than setpoint of EF-1 coolingthermostat. � 4
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and because some of these assumptions cannot be verified without destroying otherwise adequate or serviceable portions of the building, 57.Fill heating water system with 30%propylene glycol/70%water solution,by volume, for freeze protection to 8°F and burst protection to
the Engineer cannot assure the Owner or the Contractor that the professional consulting services herein encompass all contingencies. Field -20°F. Include corrosion inhibitors. 6. Fans /4 N Iiiw
coordination during construction is imperative. Contractors bidding this work must make reasonable allowances for unseen conditions and a. EF-1 elevator room exhaust fan shall be controlled by a wall-mounted line voltage cooling thermostat located in the elevator u1 i
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should include associated allowances in their bids noted as such. 58.Fill snowmelt water system with 50%propylene glycol/50%water solution, by volume, for freeze protection to -28°F and burst equipment room. Setpoint shall be lower than FC-1 cooling thermostat,by approximately 5°. a I-
protection to-60°F. Include corrosion inhibitors. b. SF-1 mechanical room supply fan shall be controlled by a wall-mounted line voltage cooling thermostat located in the LU 0
24.Field verify locations of all existing piping, equipment, ductwork, etc. mechanical room. cnto
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25.Be responsible to field verify existing equipment or ductwork remaining to be reconnected to new or existing systems. Provide ductwork, 7. ERV-1 & 2 Energy Recovery Ventilators L 0
piping,controls, diffusers, etc., as required to restore continuity to system(s). 59.Duct sizes shown on drawings are outside (sheet metal) duct dimensions. a. ERV-1 & 2 energy recovery ventilators shall run continuously during occupied hours.
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26.All ductwork, diffusers, and equipment shown on this plan are new, except where noted. 60.All ductwork shall be sealed airtight with duct mastic. Duct tape is prohibited. 8. SP-1 Sump Pump (Elevator Pit) Z (X
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a. Pump shall be controlled by integral controls and sensors. Pump shall be disabled from operating if oil is sensed by oil sensor. 0 0-
27.All new ductwork,piping, equipment, etc. is shown with dark lineweight. All existing ductwork, piping, equipment, etc. is shown with 61.All returns shall be ducted. Panning of stud cavities,joist bays, etc. is not allowed. Alarms shall be generated during high water condition or if oil is detected. No. Date Comment j It0
light lineweight. 1 6/4/14 COORDINATION LU L
62.Provide 1/4" galvanized mesh screen on all combustion air ducts or openings. 9. Pumps = (K
2 6/13/14 PERMIT I- Ill
28.All removed piping, ductwork, equipment, etc. are to be disposed of by Contractor unless noted otherwise. a. P-1 boiler pump shall run whenever B-1 boiler is firing. 3 1/10/14 PERMIT R SUB > _
63.Seal all ductwork joints and vapor barrier penetrations at all exterior walls. b. P-2 boiler pump shall run whenever B-2 boiler is firing. al ~O
29.All existing support rods and straps now supporting ducts,pipes, air tubing, electrical conduit, etc. that are removed to allow room for c. P-3 boiler pump shall run whenever B-3 boiler is firing. _I
installation of new equipment shall be relocated and reinstalled, or replaced if damaged. 64.Ducts and piping penetrating through roof shall have roof flashing with caulk type counter flashing sleeve or by method acceptable by d. P-4 water heater pump shall run whenever there is a call for heat at TS-2 temperature sensor. O 0
roofing manufacturer. Installation shall be watertight. e. P-5a heating water pump shall run whenever there is call for space heating.
30.Cap all demolished and abandoned duct take-offs at trunk duct. f. P-5b heating water pump shall run whenever there is a call for space heating. 0_ _
65.Provide backdraft dampers at any and all ductwork penetrations through exterior wall(except outside air and combustion air ductwork). d
31.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. 66.Provide volume dampers at all accessible round duct take-offs. MI 0
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Insulation 67.Make all final connections to supply GRD's with acoustic flexible duct. Minimum length shall be 4 feet. Maximum length shall be 8 feet. S 4
32.Insulate all new heating water, domestic hot water, domestic hot water recirculation, radiant floor(mains and runouts to areas being 68.All ductwork or surfaces which are visible behind a grille,register, diffuser or louver shall be painted flat black. 0 Z
heated)and snowmelt piping (mains and runouts to areas being heated) with U.L. approved, white, all service, glass fiber, snap-on,pipe a O
insulation. 1-1/2"thick on piping<1.5" in diameter and 2"thick on piping>1.5". Insulate fittings with glass fiber blanket insulation and 69.All bathroom exhaust ducts from fan/light fixtures shall be 4"galvanized round(unless noted otherwise). E
premolded PVC covers. Provide deduct alternate price to insulate with Armaflex. Z O
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70.Sheet metal and fittings to be pursuant to SMACNA and ASHRAE standards. 4 ua
33.Insulation for all types of piping shall be carried full size through pipe hangers or pipes shall be supported with vibration clamps. _I m
71.All ducts shall be 26 gauge minimum. Duct gauge and construction shall conform to SMACNA HVAC Duct Construction Standards. ME C1-1AN 1 CAL u1 u1
34.Internally line all new ductwork inside the thermal envelope (unless noted otherwise)with 1/2" thick,2.0 PCF,U.L. rated, glass fiber SPEC IFICAT IONS AND Lu > U
insulation with a continuous vapor barrier. 72.Contractor to coordinate exact location of grilles and registers before installation. = w Z
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35.Internally line all new ductwork in unconditioned space with 1 1/2",2.0 PCF,U.L.rated,glass fiber insulation with a continuous vapor 73.Seal off all ducts during construction. Ofi ERAT ION 0
barrier. Minimum R-Value of 6.0. V >
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Vibration Isolation co co Ua
36.Internally line all new ductwork outside the building envelope with 2", 1.5 PCF,U.L. rated, glass fiber insulation with a continuous vapor 0 w
barrier. Minimum R-Value of 8.0. 74.Where specified, duct-to-fan connections shall be made with flexible canvas duct connector material. Provide duct alignment within 1/2" LW ILIZ
at the fan collar and duct collar. Q X
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37.Externally wrap all unlined ductwork with 2"thick insulation with a continuous vapor barrier. Exhaust ductwork shall be excluded. 0 U LU
Minimum R-Value of 6.0. 75.Where specified, spring vibration isolators for support of equipment shall be properly aligned so that support rod does not contact spring Project No. Sca Ie: z .Q
housing. 14040.00 N/A O
38.Refrigerant piping: Insulate suction pipe below the roof and all buried pipe with"Armaflex"or equivalent tubular closed cell foam L1 z .r
insulation 1/2"thick. Slip insulation over pipe before assembly so that there are no length wide seams. Where lengths of insulation are Drawn By: Checked By: 4 w
butted together,use factory recommended adhesive. Where the use of"Armaflex"or equivalent tubular closed cell foam insulation in JA1-I J D Ru
plenums, etc. is restricted by various codes (such as Denver)piping and fittings shall be insulated the same as domestic cold water piping. LU I
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