HomeMy WebLinkAboutB15-0041_M4.0_1470342600.pdfGeneral
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. Provide necessary trenching, backfill, excavation, supports, piping, insulation, saw cutting and patching, concrete/paving, etc., as
UHTXLUHG %DFNILOO WUHQFKHV LQ ´ OD\HUV DQG WR FRPSDFWLRQ DQG SDWFK WR PDWFK H[LVWLQJ JUDGH
13. 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.
14. 3URYLGH ´ KLJK OHYHO FRQFUHWH HTXLSPHQW SDGV EHQHDWK IORRU PRXQWHG PHFKDQLFDO HTXLSPHQW DV VKRZQ RQ SODQV
15. See architectural reflected ceiling plan for all ceiling penetrations.
16. Coordinate architectural, structural, electrical, landscaping, fire protection, and interior design drawings with mechanical drawings prior
to installation.
17. Offset piping, ductwork, etc. as necessary to accommodate structure, beams, columns, and existing equipment.
18. Verify exact locations of existing and new underground utilities, piping, and raceway systems prior to trenching. Contractor shall obtain
and verify exact utility company drawings and requirements.
19. Contractor must carefully verify electrical service voltage and phase available before ordering any equipment.
Shop Drawings
20.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, valves, water heaters, and heat pumps.
21.Provide with shop drawing submittal, 1/4" scale layout drawings of rooms with mechanical equipment, piping and ductwork. Layouts
shall show locations of mechanical systems and shall be coordinated with plumbing, fire protection, and electrical systems. Equipment
shall be drawn to scale.
Insulation
22.,QVXODWH DOO QHZ UHIULJHUDQW VXFWLRQ SLSLQJ FRQGHQVDWH SLSLQJ ZLWK IOH[LEOH FORVHGFHOO HODVWRPHULF LQVXODWLRQ ´ WKLFN ,QVXODWLRQ
shall have a flame spread index of not more than 25 and a smoke-developed index of not more than 50 when test in accordance with
ASTM E 84, latest revision.
23.Elastomeric insulation: Slip insulation over pipe before assembly so that there are no length wide seams. Where lengths of insulation are
butted together, use factory recommended adhesive. Glue the butt ends of insulation to each other to form a homogenous membrane
maintaining the vapor barrier. Exterior elastomeric insulation shall be installed with the longitudinal seam on the bottom of the pipe and
shall be protected with an ultra violet resistive paint. Elastomeric insulation shall be covered with two coats of paint manufactured
specifically for covering Elastomeric insulation, Armaflex WB Finish or equal.
24.Insulate all new heating water, domestic hot water, domestic cold water, domestic hot water recirculation, and radiant floor (mains and
runouts to areas being heated), and snowmelt piping (mains and runouts to areas being heated) with U.L. approved, white, all service,
glass fiber, snap-on, 1" thick on mains and 1
2" thick on runouts, pipe insulation. Insulate fittings with glass fiber blanket insulation and
premolded PVC covers. Provide deduct alternate price to insulate with Armaflex. Exposed piping such as in mechanical rooms shall be
insulated with white fiber glass type. Insulation shall be properly installed on all piping elbows to adequately insulate the 90 degree
bend.
25.Insulation shall be installed under all radiant heated floors on slab. R-10 minimum.
26.Insulation shall be installed under all exterior snowmelt areas. R-10 minimum.
27.Insulation for all types of piping shall be carried full size through pipe hangers or pipes shall be supported with vibration clamps.
28.Internally line all new ductwork (unless noted otherwise) with 1/2" thick, 1-1
2 lb. per cubic foot, U.L. rated, glass fiber insulation with a
continuous vapor barrier.
29.([WHUQDOO\ ZUDS DOO XQOLQHG DQG RXWVLGH DLU GXFWZRUN ZLWK ´ WKLFN LQVXODWLRQ ZLWK D FRQWLQXRXV YDSRU EDUULHU 0LQLPXP 59DOXH RI
30. ,QVXODWH WUDQVIHU GXFWV ZLWK ´ WKLFN 3&) JODVV ILEHU GXFW OLQHU 2ZHQV &RUQLQJ $HURIOH[ RU HTXLYDOHQW
Piping
31. All buried pipe shall be surrounded with 4" of clean sand.
32. Domestic Hot, Cold & Recirculation piping inside building - Type 'L' copper, wrought copper fittings, and no lead solder. Provide
alternate price to use PEX piping. If PEX piping is used, increase size of piping one nominal size from size shown on plans. ie. Plans call
IRU ô´ SLSLQJ 3(; LV WR EH VXEVWLWXWHG D ´ 3(; OLQH VKDOO EH LQVWDOOHG
33. Refrigeration Piping - Type 'L', ACR Grade copper, cleaned, dehydrated, capped and charged with clean nitrogen at the factory. Use
wrought copper fittings and hard solder having a minimum melting point of 1100F for buried lines, no lead solder for non-buried lines.
9DOYHV DQG VSHFLDOWLHV VKDOO EH VWDQGDUG EUDVV RU EURQ]H YDOYHV IRU UHIULJHUDWLRQ VHUYLFH %XULHG SLSH VKDOO EH VXUURXQGHG E\ ´ FOHDQ
sand.
34. Waste piping (above ground) - Standard weight, C.I. soil pipe, and fittings, or hubless, C.I. soil pipe and fittings.
35. Waste piping (below grade) - 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. Vent piping - 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.
37. Heating and Snowmelt Water piping - Type 'L' copper, wrought copper fittings, and no lead solder. Provide alternate price to use PEX-a
piping. ,I 3(; SLSLQJ LV XVHG LQFUHDVH VL]H RI SLSLQJ RQH QRPLQDO VL]H IURP VL]H VKRZQ RQ SODQV LH 3ODQV FDOO IRU ô´ SLSLQJ 3(; LV
WR EH VXEVWLWXWHG D ´ 3(; OLQH VKDOO EH LQVWDOOHG
38. Drain Pan & Cooling Coil Condensate Piping - Type 'M' copper, wrought copper fittings, and no lead solder OR Schedule 40
PVC-DWV plastic pipe and fittings (ASTM D2665).
39.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 connections to appliances.
40.Gas Valves - Lubricated plug valve 175 lb. W.O.G. iron screwed or flanged.
41.Gas Pressure Regulator (GPR) Valves - Install GPR's where specified and/or shown on plans. Include shut-off valve upstream of valve
and capped tees upstream and downstream of valve for pressure testing. For modulating condensing boilers, install a minimum of 10' of
gas piping downstream of regulator to serve as a buffer during start-up. Refer to boiler manufacturer installation instructions for
additional requirements. Install vent limiting device or vent pipe to the outside, as required.
42.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.
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
rooms as 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.Provide plastic grommets on all heated fluid water piping passing through wood joists and studs.
Boiler Flue & Combustion Air Piping
48.Central boiler flue piping shall be CPVC, complying with ASTM F441. Snowmelt boiler flue piping shall be PVC, complying with
ASTM D1785. Boiler combustion air piping shall be PVC, complying with ASTM D1785. Snowmelt boiler system flue piping can be
PVC.
Antifreeze Solutions
49.)LOO KHDWLQJ ZDWHU V\VWHP ZLWK SURS\OHQH JO\FRO ZDWHU VROXWLRQ E\ YROXPH IRU IUHH]H SURWHFWLRQ WR ) DQG EXUVW SURWHFWLRQ
WR ) ,QFOXGH FRUURVLRQ LQKLELWRUV
50. )LOO VQRZPHOW V\VWHPV ZLWK SURS\OHQH JO\FRO ZDWHU VROXWLRQ E\ YROXPH IRU IUHH]H SURWHFWLRQ WR ) DQG EXUVW SURWHFWLRQ WR
) ,QFOXGH FRUURVLRQ LQKLELWRUV
Ductwork
51. Duct sizes shown on drawings are outside (sheet metal) duct dimensions.
52. All ductwork shall be constructed from minimum 26 gauge thickness sheetmetal per SMACNA standards.
53. All ductwork shall be sealed airtight with duct mastic. Where used, duct tape shall be listed and labeled in accordance with UL 181.
54. All returns shall be ducted. Panning of stud cavities, joist bays, etc. is not allowed.
55. Provide 1/4" galvanized mesh screen on all combustion air ducts or openings.
56.Seal all ductwork joints and vapor barrier penetrations at all exterior walls.
57. 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.
58. Provide backdraft dampers at any and all ductwork penetrations through exterior wall (except outside air and combustion air ductwork).
59. Provide turning vanes in all mitered rectangular elbows.
60. Provide volume dampers at all accessible round duct take-offs.
61. Make all final connections to supply GRD's with acoustic flexible duct. Min length shall be 4 feet. Max length shall be 6 feet.
62. All ductwork or surfaces which are visible behind a grille, register, diffuser or louver shall be painted flat black.
63. All dryer vents and bathroom exhaust ducts shall be rigid galvanized round duct.
64.Sheet metal and fittings to be pursuant to SMACNA and ASHRAE standards.
65.Contractor to coordinate exact location of grilles and registers before installation.
66.Seal off all ducts during construction.
Controls
67. Mount all thermostats and humidistats 5'-0" above finished floor.
68.Thermostats & remote temperature sensors shall not be installed above heat emitting equipment, including wall mounted touch screen
controls and light pad controls. Do not mount on exterior walls or above/below forced air supply registers.
69. 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.
70. 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.
Balancing
71. 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. Air balancing shall include balancing of supply air, return air, exhaust air, and
outside air.
72.Submit a written balance report. Balancing procedures shall be in accordance with NEBB or AABC guidelines for proportional balance.
Submit report on standard NEBB forms.
73. Airside measurements shall include all motor amperage, voltage readings, motor RPM, fan RPM, fan CFM, fan inlet static pressure, fan
outlet static pressure, and exhaust grille CFM.
74. Hydronic measurements shall include all motor amperage, voltage readings, motor RPM, pump RPM, pump GPM as calculated from the
pump curve, inlet and outlet pressures at pumps, circuit setters, and temperature and pressure drop at all coils.
75. Adjust flows to within 10% of required quantity. If actual quantity is less than 90% of design, investigate cause, attempt to rectify and
notify engineer. Submittal of balance report with less than required flows without explanation is cause for rejection of report.
76.Submit three copies of all submittals in addition to any required by the contractor. These copies shall be retained by the owner,
contractor and engineer.
Radiant
77. Radiant floor tubing shall be 1/2" nominal diameter. All tubing shall be PEX-a crosslinked polyethylene with an oxygen diffusion
barrier, manufactured by the Engle method.
78. Piping shall be installed in continuous loops, no splices allowed. The maximum loop lengths are specified in the radiant & snowmelt
zone schedules on the plans. Tubing loops off each manifold shall be installed in equivalent lengths (plus/minus 5%).
Snowmelt
79.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.
80. 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.
81. Tubing loops off each manifold shall be installed in equivalent lengths (+/- 5%).
82. 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).
83.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.
84.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.
85. 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.
86. Manifolds shall be tagged to identify area served. Each connection on supply & return manifolds shall be permanently labeled with loop
number.
87. 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.
88. After entire system has been properly cleaned and flushed, fill system with clean water to proper cold fill pressure. Add propylene glycol
to the snowmelt system to the concentration specified 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.
Vibration Isolation
89. 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.
90. Where specified, spring vibration isolators for support of equipment shall be properly aligned so that support rod does not contact spring
housing.
Mechanical Specifications
1. Control System
a. Control system shall be Tekmar TN4 system with TekmarNet compatible components.
b. Provide (1) Tekmar 482 Gateway with RS232 serial communication to the Home Automation System (HAS)
(Savant installed by others). Savant to provide remote access via the internet with occupied/unoccupied functions.
c. Provide Tekmar 423 universal reset modules, Tekmar 335 zone managers, and Tekmar 325 zone modules as
required.
d. Tekmar TN4 system shall control central boiler plant (including water heaters and recirc pump), snowmelt boiler
plants, kitchen make-up air, radiant floor, fan coils, spa heating, and snowmelting.
e. Include (1) Tekmar 480 User Switch which allows the Savant system to change scenes. Possible scene settings
DUH 1RUPDO DQG ³$ZD\´
2. Thermostats
a. 6HH ³7KHUPRVWDW 6FKHGXOH´ RQ VKHHW 0 WR GHWHUPLQH ZKLFK VWDWV SHUIRUP ZKLFK IXQFWLRQV 7KHUPRVWDWV VKDOO
be Tekmar communicating type, compatible with TN4, unless noted otherwise. Thermostats will control radiant
floors and fan coils.
b. Tekmar TN4 thermostats shall be located remotely from the zones and shall each have (1) Tekmar 084 flush
mounted indoor sensor located in the zone (unless noted otherwise). Savant shall display virtual thermostats on
Savant touch screens, including zone name, zone setpoint, and zone temperature.
c. Heat rejection supply/ exhaust fans shall have line voltage thermostats provided by mechanical contractor and
wired by electrical contractor.
3. B-1 & B-2 Boilers (Central)
a. Tekmar 423 universal reset module shall stage, modulate, and rotate B-1 & B-2 boilers to maintain heating water
setpoint at temperature sensor TS-1.
b. +HDWLQJ ZDWHU WHPSHUDWXUH VKDOO EH UHVHW EDVHG RQ RXWGRRU DLU WHPSHUDWXUHV ) # ) WR ) # ) RU
as calculated by indoor feedback from the Tekmar TN4 system.
c. +:6 VHWSRLQW VKDOO EH UDPSHG XS WR ) DGM RQ DQ\ FDOO IRU GRPHVWLF KRW ZDWHU KHDWLQJ
d. +:6 VHWSRLQW VKDOO EH UDPSHG XS WR ) DGM RQ D FDOO IRU NLWFKHQ PDNHXS DLU
e. +:6 VHWSRLQW VKDOO EH UDPSHG XS WR ) DGM RQ D FDOO IRU VSD KHDWLQJ
f. P-1 & P-2 boiler pumps shall run whenever associated boiler is called to fire.
4. Indirect Water Heaters
a. Provide (1) Tekmar 336 zone manager and (2) Tekmar 162 setpoint controls.
b. Upon a call for heating from temperature sensor TS-2 DW :+ VHW DW ) DGM 3 ZDWHU KHDWHU SXPS VKDOO
start.
c. Upon a call for heating from temperature sensor TS-3 DW :+ VHW DW ) DGM 3 ZDWHU KHDWHU SXPS VKDOO
start.
d. Water heaters shall be controlled by Tekmar TN4 system. Water heaters shall be disabled entirely during"Away"
mode.
e. P-9 domestic hot water recirculation pump shall be controlled by Tekmar TN4 system and shall be shut-off
automatically during "Away" mode.
5. Radiant Floor Heating
a. Tekmar 423 universal reset module shall control the Tekmar 741 actuating motor at MV-1 motorized mixing
valve. Valve position shall be modulated via floating action to maintain heating water supply setpoint at
temperature sensor TS-5 6HWSRLQW VKDOO EH UHVHW EDVHG RQ RXWGRRU DLU WHPSHUDWXUHV ) # ) WR ) #
) RU DV FDOFXODWHG E\ LQGRRU IHHGEDFN IURP WKH 7HNPDU 71 FRQWURO V\VWHP
b. Upon a call for heating from thermostat, zone valve on heating water return pipe shall open. Heating water pump
P-6a/b will already be operating (see "Pumps" sequence for additional information on P-6a&b).
c. Radiant floor shall be the first stage of heating, fan coils shall be the second stage.
6. FC-1x Fan Coils & HP-1 Heat Pump (Single-Zone)
a. COOLING: Upon a call for cooling, associated fan shall start and HP-1 heat pump shall be enabled. Heat pump
shall modulate to meet the cooling demand.
b. HEATING: Upon a call for second stage heating, associated fan shall start and HP-1 heat pump shall be enabled.
Heat pump shall modulate to meet the cooling demand.
7. FC-2 Fan Coil (Belt Drive, Multi-Zone) & CU-2 Condensing Unit (Hot Gas Bypass)
a. MODE: Fan coil mode of operation (heating or cooling) shall be determined based on a "first call, first serve"
basis.
b. COOLING: Upon a call for cooling, fan shall start and CU-2 condensing unit shall be enabled. Condensing unit
shall be self regulated by hot gas bypass to match the cooling load.
c. HEATING:
c.a. Kitchen and Great Room: Upon a call for second stage heating from zones FC-2a and FC-2c, associated
zone dampers shall open, FC-2 blower shall shall start, and P-5 pump shall start and run full speed.
c.b. Dining Room: Upon a call for second stage heating from zone FC-2b, zone damper shall open, on/off zone
valve on HWC-2 heating water coil shall open, and FC-2 blower shall start. Heating water pump P-6a/b will
already be operating (see"Pumps" sequence for additional information on P-6a&b).
d. ZONING: Provide a zoning system. Zoning system shall include 3 zone dampers. Zone dampers shall open/ close
based on cooling, second stage heating, or make-up air demand. VFD shall modulate to maintain constant supply
duct static pressure at pressure sensor mounted in supply air duct. Exact static pressure setpoint shall be
determined by contractor during TAB. Initial setpoint is estimated to be approximately 0.5" w.c.
e. KITCHEN MAKE-UP AIR: MUA-1 blower shall be electrically interlocked with Kitchen exhaust fan. Upon a
call for kitchen make-up air, MUA-1 fan shall start, electric heating coil shall be energized, and FC-2a & FC-2c
]RQH GDPSHUV VKDOO RSHQ (OHFWULF KHDWLQJ FRLO VKDOO PRGXODWH WR PDLQWDLQ ) DGM GLVFKDUJH DLU WHPSHUDWXUH
f. FIREPLACE MAKE-UP AIR: FC-2 blower shall be electrically interlocked with Great Room fireplace gas
valve. Normally closed OSA damper shall open (1100 CFM), normally open RA damper shall partially close
(1100 CFM), and FC-2a & FC-2c zone dampers shall open. P-5 make-up air pump shall start to flow coil and B-1
& B-2 boilers shall be enabled. Pump speed shall be varied by Tekmar 356 PL[LQJ FRQWURO WR PDLQWDLQ )
(adj) discharge air temperature at TS-4 temperature sensor (mounted at FC-2 discharge). P-5 pump shall be
GLVDEOHG LI 26$ WHPSHUDWXUH LV JUHDWHU WKDQ ) DGM
g. KITCHEN & FIREPLACE MAKE-UP AIR: Upon a call for simultaneous Kitchen and Great Room fireplace
make-up air, both make-up air sequences above shall occur.
8. FC-3 Fan Coil (Direct Drive, Multi-Zone) & CU-3 Condensing Unit (Hot Gas Bypass)
a. MODE: Fan coil mode of operation (heating or cooling) shall be determined based on a "first call, first serve"
basis.
b. COOLING: Upon a call for cooling, fan shall start and CU-3 condensing unit shall be enabled. Condensing unit
shall be self regulated by hot gas bypass to match the cooling load.
c. HEATING: Upon a call for second stage heating, associated zone dampers shall open, on/off zone valve on
HWC-3 heating water coil shall open. Heating water pump P-6a/b will already be operating (see"Pumps"
sequence for additional information on P-6a&b).
d. ZONING: Provide a zoning system. Zoning system shall include 3 zone dampers and 1 bypass damper. Zone
dampers shall open/ close based on cooling or second stage heating demand. Bypass damper shall modulate to
maintain constant supply duct static pressure at pressure sensor mounted in supply air duct. Exact static pressure
setpoint shall be determined by contractor during TAB. Initial setpoint is estimated to be approximately 0.5" w.c.
9. FC-4 Fan Coil (Duct Free, Single-Zone) & CU-4 Condensing Unit
a. Fan coil shall be controlled by a cooling thermostat.
b. COOLING: Upon a call for cooling, fan shall start and CU-4 condensing unit shall be enabled. Condensing unit
CU-4 shall cycle as required to meet the A/V room cooling demand.
10. HX-1 Spa Heat Exchanger
a. Provide (1) Tekmar 162 setpoint control.
b. Upon a call for heating from TS-6 temperature sensor, normally closed control valve shall open, end switch shall
signal P-8 pump to start, and B-1 & B-2 boilers shall be enabled.
11. B-3 Boiler (House Snowmelt)
a. Integral Lochinvar controls shall modulate B-3 boiler to maintain heating water supply setpoint at temperature
sensor TS-7.
b. +:6 VHWSRLQW VKDOO EH VHW DW ) DGM
c. Provide (2) Tekmar 091/094 snow/ice sensors and sockets, one for each snowmelt zone.
d. Provide (2) Tekmar 665 snowmelt controls, one for each snowmelt zone.
e. 3URYLGH DQ ³$872 2)) 7,0('21´ VRIWZDUH VZLWFK IRU HDFK VQRZPHOW ]RQH ZLWKLQ WKH +$6 ³$XWR´ PRGH
PHDQV DXWRPDWLFDOO\ FRQWUROOHG E\ 7HNPDU V\VWHP WR UXQ ZKHQ VQRZ LV VHQVHG DW WKH VQRZLFH VHQVRU ³2II´
means snowmelt is off entirely. "Timed-On" means snowmelt shall turn on for a timed snowmelt operation
period of 6 hours (adj). Upon completion of "Timed-On" cycle, switch shall default back to previous position.
f. 7HNPDU V\VWHP VKDOO EH VHWXS IRU ::6' ZDUP ZHDWKHU VKXW GRZQ DW DSSUR[LPDWHO\ ) DGM 6\VWHP VKDOO
not operate if outdoor temperature is above this setting.
12. B-4 Boiler (Common Snowmelt)
a. Integral Lochinvar controls shall modulate B-4 boiler to maintain heating water supply setpoint at temperature
sensor TS-8.
b. +:6 VHWSRLQW VKDOO EH VHW DW ) DGM
c. Provide (1) Tekmar 091/094 snow/ice sensor and socket.
d. Provide (1) Tekmar 665 snowmelt control.
e. 3URYLGH DQ ³$872 2)) 7,0('21´ VRIWZDUH VZLWFK IRU 6= ZLWKLQ WKH +$6 ³$XWR´ PRGH PHDQV
DXWRPDWLFDOO\ FRQWUROOHG E\ 7HNPDU V\VWHP WR UXQ ZKHQ VQRZ LV VHQVHG DW WKH VQRZLFH VHQVRU ³2II´ PHDQV
snowmelt is off entirely. "Timed-On" means snowmelt shall turn on for a timed snowmelt operation period of 6
hours (adj). Upon completion of "Timed-On" cycle, switch shall default back to previous position.
f. 7HNPDU V\VWHP VKDOO EH VHWXS IRU ::6' ZDUP ZHDWKHU VKXW GRZQ DW DSSUR[LPDWHO\ ) DGM 6\VWHP VKDOO
not operate if outdoor temperature is above this setting.
13. WCU-1 Wineroom Cooling Unit
a. COOLING: Upon a call for cooling from wall mounted thermostat, fans shall start. Compressor shall be
controlled by integral controls to meet the cooling load.
b. HUMIDIFICATION: Upon a call for cooling from wall mounted humidistat, integral humidifier shall start and
fan shall start.
14. Fans
a. DBF-1 dryer booster fan shall be controlled by an integral pressure sensing switch which recognizes dryer
operation and activates booster fan from an independent electrical circuit. The integral delay-on-make timer in
the switch will cycle the fan on for intervals of 10 minutes. This will continue until the dryer has stopped and the
timer delay period has lapsed.
b. EF-1 bath exhaust fan shall be controlled by an on/off wall switch.
c. EF-2 inline bath exhaust fan shall be controlled by an on/off wall switch.
d. EF-3 inline bath exhaust fan shall be controlled by an on/off wall switch.
e. EF-4 garage exhaust fan shall be energized via a motion sensor in the garage ceiling. Once energized, fan shall
run for 30 minutes (adj) as set by adjustable timer. Any trigger of the motion sensor during the timed run period
shall reset the timer. Also, provide a wall mounted 2 hour timer switch for manual operation.
f. EF-5 elevator equipment exhaust fan shall be controlled by a line voltage cooling thermostat.
g. EF-6 crawlspace exhaust fan shall be controlled by a line voltage cooling dehumidistat.
h. SF-1 mechanical room supply fan shall be controlled by a line voltage cooling thermostat and a timer switch
ZLUHG LQ SDUDOOHO &RROLQJ WKHUPRVWDW VKDOO EH VHW DW ) DGM
15. Energy Recovery Ventilators & Electric Duct Heaters
a. Units shall be controlled by a master control (Renewaire PT Percent Timer Control) which shall control percent
of unit operation per hour (adjustable from 0 to 100%).
b. Units shall also be controlled by multiple local push button controls (Renewaire PB-L Push Button Point-of-Use
Control Lighted). These controls shall all be wired in parallel with each other and with the PT-L control. Press
button once for 20 minutes of timed ventilation operation, twice for 40 minutes, and three times for 60 minutes.
Press and hold button for about five seconds and ventilation cycle is cancelled.
c. Some ERV's are tied into fan coils, however no interlocks are required. Fan coils do not need to run for ERV to
be fully effective.
d. Electric duct heaters installed in ERV fresh air supply ducts shall be energized via duct mounted air temperature
VHQVRUV ZLWK WKHUPRVWDWV VHW WR ) DGM
e. Heaters shall only be permitted to operate if airflow is proven by air proving switch.
f. Once heaters are energized, SCR controls shall modulate the element to maintain setpoint.
16.Steam Humidifiers
a. Provide (1) Nortec outdoor temperature sensor and (1) Nortec digital humidistat controller with remote
transducer for each humidifier.
b. Upon a call for humidification from room mounted humidity transducer, associated fan shall start and once
airflow is proven by air proving switch, humidifier shall start. Humidifier shall modulate to maintain humidity
setpoint.
c. Include a high limit duct humidistat located in the supply air duct, downstream of the steam absorption zone to
disable humidifier if levels are too high.
d. Digital humidistat controller shall automatically reset the humidity setpoint based on outdoor temperature.
Outdoor reset curve shall be adjustable.
e. Humidification shall be disabled during calls for cooling and make-up air.
f. Integral controls shall automatically temper hot drain water by mixing cold domestic water to comply with code.
17.Steam Generators
a. Steam generators shall be controlled by Mr. Steam controls.
18. Pumps
a. P-1 B-1 boiler pump: on whenever boiler is called to fire.
b. P-2 B-2 boiler pump: on whenever boiler is called to fire.
c. P-3 WH-1 water heater pump: on upon a call for DHW heating from TS-2 temperature sensor.
d. P-4 WH-2 water heater pump: on upon a call for DHW heating from TS-3 temperature sensor.
e. P-5 FC-3 fan coil pump: on during a call for make-up air and when not shutdown by WWSD (warm weather shut
down). Pump is to be controlled for variable speed pumping via Tekmar 356 mixing control. Pump shall run full
speed (bypass Tekmar 356 control) upon a call for second stage heating.
f. P-6a&b space heating pumps: pumps shall be staged by the Grundfos Genie Bus controls. Only one pump is
required to run at a time. The second pump is for standby operation for the case that the other pump fails. Pumps
shall be rotated for equal run times. Pumps shall run constantly when Tekmar Control system is NOT in WWSD
(warm weather shut-down). Grundfos Magna pump is equipped with an integrated variable frequency converter
WR DXWRPDWLFDOO\ YDU\ SXPS VSHHG EDVHG RQ IORZ GHPDQG 6HW SXPS WR ³3URSRUWLRQDO 3UHVVXUH´ PRGH 3XPS ZLOO
run even when there are no zone valves calling. This is OK because the pump will slow down to a very slow
speed and very little electrical energy will be used.
g. P-7 space heating pump: removed from design.
h. P-8 HX-1 heat exchanger pump: on upon a call for spa heating from TS-6 temperature sensor.
i. P-9 domestic hot water recirculation pump: controlled by TN4 system. On during "Normal" mode. Off during
"Away" mode.
j. P-10 B-3 boiler pump: on whenever boiler is called to fire.
k. P-11 snowmelt pump: on whenever there is a call for snowmelting from SZ-1.
l. P-12 snowmelt pump: on whenever there is a call for snowmelting from SZ-2.
m. P-13 B-4 boiler pump: on whenever boiler is called to fire.
n. P-14a snowmelt pump: on whenever there is a call for snowmelting from SA-3a.
o. P-14b snowmelt pump: on whenever there is a call for snowmelting from SA-3b.
p. P-15 CH-1 chiller pump: removed from design.
q. P-16 CH-2 chiller pump: removed from design.
r. P-17 CH-3 chiller pump: removed from design.
s. P-18 chilled water pump: removed from design.
Sequence of Operation
4/18/16
08/04/16