HomeMy WebLinkAboutLot 3 Mech specs.pdf
5/7/14 Lot 3 Elk Meadows 15000-1
DIVISION 15 MECHANICAL
Copyright 2014 - Rader Engineering, Inc.
SECTION 15000--SYSTEM OVERVIEW
1. It is the intent of these specifications to outline the anticipated mechanical
systems. The successful contractor shall be responsible to size all equipment,
provide equipment specifications and coordinate installation of the systems with
the General Contractor. These specifications are a supplement to specifications
provided by Suman Architects. If there are any conflicts between the two
specifications address any questions to the Architect. Equipment manufacturers
listed shall be included as the base bid. Contractors may propose alternate
equipment/systems to the base bid as an alternate price to the base bid.
2. Rader Engineering has performed load calculations for the home and they are as
follows. These output loads shall be used for sizing the boilers and heating
equipment. Also see Heat Loss & Gain Summary for loads for individual
rooms.
a. The building heat loss is 71,400 BTU/H.
b. The domestic water heating load is 70,400 BTU/H.
c. The kitchen make-up air load is 72,000 BTU/H. This is based on 1000
CFM.
d. There is no snowmelting.
3. BOILER: Provide and install a high efficiency wall-hung condensing boiler to
provide heat for space heating, domestic hot water and kitchen make-up air. The
base bid shall be for (1) Lochinvar WHN 285.
The heating system shall be designed to maximize the boiler efficiency by
allowing the system to operate below condensing temperatures (less than 130°F
return water temperature) at all times except during a call for domestic water
heating and kitchen make up air. During a call for domestic water heating or
kitchen make up air the boiler supply temperature setpoint shall be ramped up to
160°F. Include a condensate neutralization basin. Terminate flue above the
roof, per manufacturer’s installation instructions. Sidewall termination is not
permitted. Boilers shall be located in the Mech Room. Do not prioritize
domestic water heating. Connect an outside air temperature sensor directly to
the boiler.
4. RADIANT FLOOR HEATING: The home is to be heated by a radiant floor
system throughout. The tubing shall be installed in the concrete slab or in a
concrete topping slab. Provide individual loop balancing valves as provided by
the tubing manufacturer to adjust the flow rate to each loop. Do not install
tubing under built-in cabinets. Tubing shall be run under all bath tubs and under
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all showers and extend into benches of the showers. Tubing shall also be run
into closets associated with the Bedroom zones. Route tubing to avoid wall
locations.
Include temperature reset controls to automatically adjust radiant floor heating
water temperatures based on outdoor temperatures. Manifold locations must be
coordinated with, and approved by, the Developer. Locate all radiant zone
valves in the mechanical room. A common supply pipe can be run to serve all
zones but individual dedicated return lines (one per zone) will be required to be
“home-run” to the mechanical room. The heating zones are as follows:
1. Garage
2. Entry, Mud, Hall, Laundry
3. Bed 1, Bath 1
4. Bed 2, Bath 2
5. Family Room
6. Den
7. Kitchen, Living, Dining, Hall, Powder
8. Bed 3, Bath 3
9. Master Bed, Closet
10. Master Bath
5. AIR CONDITIONING and KITCHEN MAKE UP AIR: Install a fan coil
with 2000 CFM capacity to provide 2 zones of cooling for the upper level. This
fan coil shall also be utilized for kitchen make-up air. During a call for make-up
air, the dampers shall change position to allow 1000 CFM of outside air to be
delivered to the Kitchen zone to replace the air exhausted by the kitchen hood.
Include controls to automatically temper the make up air to 70 degrees during the
winter months. Include a MERV 11 air filter.
Provide vibration isolators as required. Duct connections to the fan coil shall be
made with flexible canvas connectors. Provide a freezestat to protect the
hydronic coil from freezing by disabling the fan if near freezing conditions are
detected.
Coordinate exact location of the fan coil and duct routings with the Architect and
Developer.
The condensing unit shall have a nominal 4-ton capacity. Include low ambient
control, filter drier, high and low pressure switches, fan motor with ball bearings,
hard shutoff TXV, Evaporative freeze thermostat, cycle protector, compressor
start assist capacitor and relay. The cooling zones are as follows:
1. Den, Kitchen, Living, Dining
2. Bed/ Bath 3, Master Suite
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6. GRILLES & REGISTERS: All supply and return grilles shall be Titus CT
series linear bar grilles or equivalent. All floor grilles shall be pencil proof and
shall have flangeless frames. All wall and ceiling grilles can be flanged frames.
Size for NC of 25 maximum in bedrooms and 30 maximum in living areas.
7. KITCHEN EXHAUST: The kitchen exhaust duct shall be sized for 1000 CFM,
10” diameter minimum.
8. BATH EXHAUST: Provide Panasonic bath exhaust fans for all bathrooms.
Fans shall exhaust 70 CFM minimum. Fans to be Panasonic FV-08VRL1.
9. WATER HEATER: The domestic water heating system shall be supplied from
the central boiler system. Provide 1 indirect water heater with a storage capacity
of 82 gallons, Lochinvar Squire SIT 080. Include a domestic hot water
recirculation system with pump and dedicated recirculation piping. Recirc pump
shall be controlled by an integral timer & aquastat. Water Heater shall be
located in the Mech Room.
10. TEMPERATURE CONTROLS: The temperature control system desired shall
include 7-Day programmable touchscreen thermostats with humidity control.
Honeywell TH8321R1001 or equivalent.
11. HYDRONIC PUMPS: All hydronic heating pumps shall be Grundfos wet-rotor
type pumps. Pumps with a ¾ hp and greater motor size shall be installed with
piping isolators to minimize vibration transmission to the piping. Piping isolators
shall be Mason Industries Safeflex SFDEJ or equal (elastomeric piping isolators,
peroxide cured EPDM with Kevlar reinforcement).
12. HOSE BIBBS: Provide freeze resistant exterior hose bibs and interior hot &
cold hose bibs as shown on the Architectural plans. Install a hot and cold hose
bibb in the garage and a frost-proof hose bibb at the rear of the house.
13. STEAM GENERATOR: Provide a steam generator for the Master Shower,
Mr. Steam or equal. Refer to architectural drawings for locations. Contractor
shall coordinate with manufacturer for proper steam generator sizing. Include
auto drain and controls to adjust time & temperature from inside shower.
14. GAS PIPING: Route gas lines to all loads which include the following: Boiler,
Living Room Fireplace and exterior BBQ grill.
15. Install a recessed dryer vent box at all dryers. Ducting between the dryer boxes
and the exterior shall be 4” rigid metal. Flexible ductwork is not allowable.
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16. Fill heating water system with 30% propylene glycol / 70% water solution, by
volume, for freeze protection to 8°F and burst protection to -20°F. Include
corrosion inhibitors.
ADD ALTERNATE OPTIONS:
1. Provide an ADD Alternate price to install a point-of-use Reverse Osmosis water
filtration system to provide R.O. water to a dedicated faucet near the Kitchen
Sink.
2. Provide an ADD alternate price to upsize the water heater to a Lochinvar SIT
119.
3. Provide an ADD alternate price to install a Lennox HEPA-40 Bypass Air
Filtration System onto the air conditioning system.
4. Provide an ADD alternate price to install a 2-stage condensing unit in lieu of a
single stage unit.
5. Provide an ADD Alternate price to install a steam humidification to the air
conditioning system. Humidifier shall be manufactured by Nortec or equal. Unit
shall be equipped with a steam distribution tube installed in the supply ductwork.
Humidifier will have a capacity of 8 lbs/hr minimum. Include controls to
automatically reset the indoor humidity levels based on outdoor temperatures.
Include a high limit duct-stat downstream of the steam injection tube. Include air
proving switch.
6. Provide an ADD alternate price to install cast iron waste lines above ground.
END OF SECTION 15000
5/7/14 Elk Meadows 15010-1
SECTION 15010--GENERAL PROVISIONS
PART 1.00--GENERAL
1.01 SCOPE OF WORK
Work shall consist of furnishing all labor and materials necessary for the
installation of complete and operating mechanical systems.
1.02 EXAMINATION OF PREMISES
Visit the premises before submitting bid as no extras will be allowed for lack of
knowledge of existing conditions.
1.03 CODES AND STANDARDS
Comply with all applicable codes, laws, industry standards and utility company
regulations.
1.04 PERMITS, FEES AND NOTICES
Permit to be supplied by General Contractor under General Building Permit.
1.05 SUBSTITUTIONS AND APPROVALS
A. Some materials are specified by manufacturer's name. Materials of equivalent
quality may be used if accepted by the Engineer and approved by the Owner.
B. Bidder's Choice: Materials or equipment listed by several manufacturer's
names are intended to be bidder's choice, and any of the listed manufacturers
may be bid without soliciting prior approval.
C. Contractor to be responsible for any changes and costs to accommodate any
equipment except the first named in the specification.
D. Substitutions for Material
Equipment and materials not listed as equivalents may be proposed as
alternates to specified items by submitting it as a separate line item to the base
bid on the Bidder's letterhead. Alternates are encouraged for products
recommended by Contractor that meet these specifications.
Such alternate proposals shall not be substituted for the base bid and must be
accompanied by full descriptive data on the proposed equipment, together
with a statement of the cost to be deducted for each item. If any such
alternates are considered, the Contractor shall submit a list of the proposed
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alternate substitution items within 14 days of award of contract. The request
for proposed substitutions shall not be accepted by the Engineer due to
scheduling or delivery concerns.
1.06 ROOF CURBS
Roof curbs and roof flashings shall be furnished under the Architectural Division
(except for any curbs specified herein). Furnish and install all counter flashings
of the same material as the flashing.
1.07 FOUNDATIONS AND SUPPORTS
Furnish and install all foundations, bases, hangers, anchors, guides and supports
for mechanical equipment, piping and ducts.
1.08 INSTALLATION AND ARRANGEMENT
Install all work to permit removal of coils, shafts and wheels, filters, and all other
parts which might require periodic replacement of maintenance. Install all
equipment per manufacturer's installation instructions and acceptable industry
standards.
1.09 PROTECTION OF WORK AND PROPERTY
Be responsible for the protection of existing facilities whether or not such facility
is to be removed or relocated. Move or remove any facility so as not to cause
interruption of the work or Owner's operation.
1.10 EXCAVATION AND BACKFILL
Do all excavating and backfilling required by the work in this division.
1.11 CONCRETE
All poured in place concrete shall be furnished under the Architectural Divisions
of these Specifications.
1.12 MOTORS
A. Squirrel cage type, open drip proof, normal starting torque, with thermal
overload protection and ball bearings when available.
B. Where commercially available, motors rated greater than 1000 watts shall
have a power factor of at 85% under rated load. Where not commercially
available, power factors shall be capacitor corrected by equipment
manufacture to at least 90% under rated load.
5/7/14 Elk Meadows 15010-3
1.13 ACCESS DOORS
Furnish access doors of type suitable to Developer and provide to General
Contractor to construct into the building. Access doors should be provided in all
locations where access is required. Access doors to be priced as line item for each
proposed door.
1.14 IDENTIFICATION
Main domestic cold water, main domestic hot water, all heating water zone
valves, snowmelt zones, and all gas valves shall be identified by brass, plastic
disc, or other permanent label accepted by Engineer.
1.15 ELECTRICAL EQUIPMENT AND WIRING FOR MECHANICAL
DIVISION
A. Unless otherwise indicated, all motors and controls shall be furnished, set in
place and wired in accordance with the following schedule. (MD is
Mechanical Division - ED is Electrical Division).
Item
Furnished
under
Set in
place or
mounted
under
Wired and
connected
under
1. Equipment motors and
thermal overload,
resistance heaters, line
voltage tstats, etc.
MD MD ED
2. Disconnect switches,
fused or unfused, H.P.
rated switches, thermal
overload switches and
fuses, manual operating
switches (3)
ED(1) ED(1) ED
3. Low voltage pushbutton
stations, pilot lights,
multi-speed switches,
float switches,
thermostats, control
relays, control
transformers, control
panels, motor valves,
damper motors, solenoid
valves, and interlocks
MD MD(2) MD(2)
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4. Contactors, 120V control
circuit outlets for control
panels and for boiler
controls.
ED ED ED
5. Fire and smoke detectors
Alarm Co. Alarm Co. Alarm Co.
6. Site sprinklering control
panels, solenoid valves,
switches, etc. and all
wiring starting at the
distribution panel circuit
breaker (see site
sprinklering section)
Landscaper Landscaper Landscaper
(1) If furnished as part of factory wired equipment, wiring and
connections only by ED
(2) If float switches, line thermostats, time switches, etc., carry the FULL
LOAD CURRENT to any motor, they shall be furnished by the
Mechanical Division, but shall be set in place and connected under
the Electrical division, except that where such items are no integral
part of the mechanical equipment, or directly attached to ducts,
piping, etc., they shall be set in place under the Mechanical Division
and connected by the Electrical Division. If they do not carry the
FULL LOAD CURRENT to any motor they shall be furnished, set in
place and wired under the Mechanical Division. Control devices
carrying full load current furnished Mechanical and wired by
Electrical shall be located at the device being controlled, unless
shown on drawings or mutual agreement is made between the
contractors with no change in the contract price.
(3) Wiring from alarm contacts to alarm system by ED; all control
function wiring by MD.
B. Connections to all controls directly attached to ducts, piping and mechanical
equipment shall be made with flexible connectors.
1.16 FLUSHING AND CLEANING
Before final connections are made in the piping systems, all piping shall be
blown out with air and then washed out with cleaning compounds. Clean the
boiler by the same procedure.
5/7/14 Elk Meadows 15010-5
1.17 TESTING
A. Test all drain and waste lines with standing water test of twelve feet of head,
held long enough to inspect each joint.
B. Test all steam and water piping, before connecting to units, at 100 psig air
pressure.
C. Test all gas piping under 50 psig air pressure.
D. All tests required by code must be done, to the satisfaction of the local
authorities having jurisdiction, before covering.
E. Test refrigeration piping with oil pumped, dry nitrogen at 150 psi and then
evacuate, fill with refrigerant and test with Halide Torch or electronic leak
detector. Evacuate and dry the system with dry nitrogen.
F. All hydrostatic tests to be held for a minimum of six hours. Air tests to be
held for a minimum of two hours.
1.18 BALANCING
A. The balancing of the system shall be part of this contract, include in bid the
cost of balancing and adjusting.
B. Furnish and install such items as thermometer wells, pressure test cocks,
access doors, etc., as required to allow tests and adjustments to be made.
C. Adjust and balance all air and water systems. Check, adjust and balance all
systems to meet the design conditions and tabulate all information on
acceptable forms. All systems shall be checked for proper performance
during design conditions, both heating and cooling.
1.19 OPERATING AND MAINTENANCE INSTRUCTIONS
Deliver operating and maintenance instruction to the Owner on completion of the
work and instruct Owner in their use.
1.20 WARRANTY
A. All materials and equipment shall be new unless other-wise specified.
Guarantee all workmanship, material and equipment and replace any found
defective without cost to the Owner, for one year after final acceptance, as
defined in General Conditions.
B. Each warranty for longer than the one year described above (that comes with
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equipment used on the job) shall be passed onto the Owner with dates of start
and end of warranty.
1.21 PROJECT RECORD DRAWINGS
Contractor to provide the Developer with one clean set of final drawings.
END OF SECTION
5/7/14 Elk Meadows 15250-1
SECTION 15250--INSULATION
1.01 PIPING AND EQUIPMENT
A. Domestic Cold Water Pipe, Valves and Fittings.
1. All piping shall be insulated with flexible, closed-cell elastomeric
insulation. Insulation shall have a flame spread index of less than 25
and a smoke-developed index of less than 50 when test in accordance
with ASTM E 84, latest revision. Minimum R-Value of 3.0 for all
piping. Insulation shall have a maximum water vapor transmission of
0.08 perm-inches when tested in accordance with ASTM E 96.
Procedure A, latest revision.
2. All buried pipe and fittings (except water service from street to
buildings) spiral wrapped with "Protecto Wrap" No. 200 coating or
equivalent, 50% overlap. No insulation is required.
B. Domestic Hot Water Pipe and Fittings
1. All hot water supply lines and circulating water lines insulated with
with flexible, closed-cell elastomeric insulation. Insulation shall have
a flame spread index of less than 25 and a smoke-developed index of
less than 50 when test in accordance with ASTM E 84, latest revision.
Minimum R-Value of 3.0 for all piping. Insulation shall have a
maximum water vapor transmission of 0.08 perm-inches when tested
in accordance with ASTM E 96. Procedure A, latest revision.
2. All buried pipe and fittings shall be insulated in the same manner,
with 4-1/2 lb./cu.ft. insulation, spiral wrapped with "Protecto Wrap"
No. 200 coating or equivalent, 50% overlap.
C. Heating Piping; Heating Water, and Antifreeze Piping; Pipe, Valves and
Fittings.
1. All piping shall be insulated with flexible, closed-cell elastomeric
insulation. Insulation shall have a flame spread index of less than 25
and a smoke-developed index of less than 50 when test in accordance
with ASTM E 84, latest revision. Minimum R-Value of 3.0 for all
piping. Insulation shall have a maximum water vapor transmission of
0.08 perm-inches when tested in accordance with ASTM E 96.
Procedure A, latest revision.
5/7/14 Elk Meadows 15250-2
D. Insulation for all types of piping shall be carried full size through the
hangers.
1.02 DUCT INSULATION
Inside Duct Liner - See Section 15800 - Ductwork.
END OF SECTION
5/7/14 Elk Meadows 15400-1
SECTION 15400--PLUMBING
1.01 WATER PIPING
A. Water Service
1. Water meter to be purchased by General Contractor, installed by
Plumbing Contractor in accordance with the governing body's
regulations.
2. All pipe outside the building: 3" and smaller Type "K" copper with
wrought copper fittings and hard solder with a minimum melting point of
1100 degree F.
3. All pipe outside the building: 4" and larger ductile iron piping.
4. Piping outside the building shall have not less than eight feet of cover
from finished grade.
B. Piping (Inside Building)
1. Piping inside building; buried lines, type "K" copper water tube, wrought
copper fittings and 1100 degree F solder. Non-buried lines, type "M"
copper water tube, wrought copper fittings. All solder and fluxes shall
have no lead content. Piping may also be cross-linked polyethylene
(PEX) tubing manufactured to ASTM 876 and F877 standards, for
Domestic Water Piping. Tubing shall be manufactured by Wirsbo or
equal and installed per manufacturer’s installation instruction.
2. All buried pipe within the building insulated per Insulation Section and
surrounded by 4" clean sand or clean on site tailings. All buried pipe
outside the building surrounded by 4" clean sand or clean on site tailings.
3. Valves and Specialties
Gate Valves: Bronze, Class 125, 200 lb. W.O.G.
Globe Valves: Bronze, Class 125, 200 lb. W.O.G.
Swing Check Valves: Bronze, Class 125, 200 lb. W.O.G.
Dielectric Unions: Furnish and install a dielectric union at all
connections where non-ferrous material
Strainers: 250 lb. semi-steel or cast iron "Y" type with monel
or brass screen
Pressure Temp. Taps: Universal Controls Corporation
#45-PT-N. Sisco BNO-500 1/2 NPT, Nordel Core
5/7/14 Elk Meadows 15400-2
1.02 SOIL, WASTE AND VENT PIPING
A. General
1. Coordinate exact location of waste risers with Architect and General
Contractor before installation.
2. Combine vent pipes as possible and penetrate roof on back side of home.
Coordinate exact location with Architect and General Contractor before
installation.
B. Materials; Soil, Waste and Vent Piping (Inside Building)
1. Waste and vent lines for residential 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
NSF-DWV mark and shall be joined with solvent weld joints as
recommended by the manufacturer.
Provide Add alternate price to install 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 standard weight, galvanized steel pipe with
black, C.I. drainage fittings.
1.03 GAS PIPING
A. General
1. Surround all buried pipe with 4" clean sand or on site tailings before
backfilling.
2. Gas meter and service from the main to the meter will be furnished and
installed by the utility company, paid for by the Owner.
3. Gas piping from the meter through the building will be done under this
division and connected to all equipment required.
B. Piping
1. 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 prohibited except for final connections to appliances
only.
5/7/14 Elk Meadows 15400-3
C. Valves and appurtenances shall be of a type designed and approved for use
with fuel gas.
1.04 FLASHINGS
Provide roof flashings, to be installed by roofer.
1.05 CLEANOUTS
Install full size brass cleanout plugs per local code requirements or otherwise
required. Brass plugs with chrome plated cover plates for walls, flush with wall.
When outside, heavy duty cast iron tractor cover set in two foot square by 6"
deep concrete pad or in concrete or asphalt surface. "Y" in the line and vertical
riser of C.I. pipe.
1.06 FIXTURES AND EQUIPMENT
A. Fixtures
1. Install fixtures and/or rough-in according to the Architects fixture
schedule.
2. Secure fixtures to walls and floor or countertops in accordance with
manufacturer's roughing-in and setting requirements and form a rigid
installation.
3. All pipe at the fixtures which may be exposed to view shall be brass
chrome finish, finished with chrome escutcheons where they project from
walls and floors.
4. Stop valves shall be furnished and installed at all fixtures, for all
equipment and at rough-in locations.
5. Vacuum breakers shall be provided at all outlets with hose connections.
END OF SECTION
5/7/14 Elk Meadows 15600-1
SECTION 15600--HEAT AND REFRIGERATION
1.01 PIPEWORK
A. Piping
1. Valve all heating water piping with 3/4" hose end valve to permit
drainage of the system. Vent all high points in equipment rooms as
necessary with automatic air vents. All high points in system outside of
equipment rooms with manual air vents as required to relieve air in the
system.
2. All buried pipe to be insulated as per Insulation Section 15250. All
buried pipe shall be surrounded by 4" clean sand or clean on site tailings.
3. Heating water piping shall be Type “M” copper in the mechanical room.
All other piping can be cross-linked polyethylene (PEX) tubing with
oxygen diffusion barrier manufactured to ASTM 876 and F877 standards,
for Heating Water Piping. Tubing shall be manufactured by Wirsbo or
equal and installed per manufacturer’s installation instruction.
4. Refrigeration Piping: Type "L", ACR grade copper, cleaned, dehydrated
and capped at the factory. Use wrought copper fittings and hard solder
having a minimum melting point of 1100 degrees for buried lines, 95-5
solder for non-buried lines. Valves and specialties shall be standard brass
or bronze valves for refrigeration service. Buried pipe shall be
surrounded by 4" clean sand or clean on site tailings.
B. Valves and Specialities
1. Globe valves or plug valves may be used as balancing valves.
2. Dielectric unions are to be used at all connections where ferrous material
is connected to buried non-ferrous material and where non-ferrous
material is connected to domestic water piping.
Gate Valves: Bronze screwed, Class 125 or iron body, bronze mounted,
flanged, Class 125.
Plug Valves: 175 lb. W.O.G. for 250 degrees F @ 150 psi W.P.
Eccentric, tight shut-off with permanently lubricated stem bearing
surfaces in upper and lower journals. DeZurik figure 435 or Homestead
Series 1500.
Flo-Control Valves: Bell & Gossett Flo Control, Taco Flo-Check or
Hoffman Flo Control Valve.
5/7/14 Elk Meadows 15600-2
Balancing Valves: 125 psi W.P. for 250 degrees F service, tight shutoff,
Illinois Dual Purpose Balancing/Shutoff Valve, Hoffman, Sarco, or
equivalent.
Unions: 300 psi W.O.G. malleable iron screwed or 125 lb. cast iron
flanged unions.
Strainers: 250 lb. semi-steel or cast iron "Y" type screwed, monel screen,
125 lb. semi-steel "Y" type flanged, brass screen.
Pressure Temperature Taps: Universal Controls Corporation #45PT-N.
Sisco ENO-500 1/2" NPT, Nordel Core.
or
3. Copper Pipe Valves and Specialties.
Ball valves, bronze, class 125, 200 lb. W.O.G.
Gate Valves: Bronze, Class 125, 200 lb. W.O.G.
Globe Valves: Bronze, Class 125, 200 lb. W.O.G.
Check Valves: Bronze, Class 125, 200 lb. W.O.G.
Balancing Valves: 125 psi W.P. for 250 degrees F service, tight shutoff,
Illinois Dual Purpose Balancing/Shutoff Valve, Hoffman, Sarco or
equivalent.
1.02 RADIANT FLOOR AND SNOWMELT PIPING
A. General
1. Piping to be crosslinked polyethylene with an oxygen diffusion barrier as
manufactured by Wirsbo, Roth, Rehau, Stadler, Heat link, Watts Radiant
or Zurn. Piping shall have a minimum of 30 day UV light protection.
2. Piping shall be installed in continuous loops, no splices allowed. The
maximum loop length allowable for radiant floor shall be 250' for 1/2"
tubing and snowmelt shall be 300' for 5/8" tubing or larger. Longer
lengths or different diameters of tubing are not allowable unless reviewed
by the Engineer for each specific installation.
3. The Contractor shall install the tubing as recommended by the
manufacturer and spaced to provide the required heat output. Tubing
loops off each manifold shall be installed in equivalent lengths (5%).
4. 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 and compression fitting to receive tubes)
5/7/14 Elk Meadows 15600-3
and supply header (including: manual shutoff valve for each loop and
compression fitting to receive tubes).
5. Tube shall carry a twenty-five (25) year non-prorated warranty against
failure due to defects in material and workmanship.
6. Snowmelt tubing which is not located in the snowmelt zone shall be
insulated.
END OF SECTION
5/7/14 Elk Meadows 15800-1
SECTION 15800--AIR DISTRIBUTION
1.01 MATERIALS AND EQUIPMENT
A. General
1. Sizes shown on the drawings shall be outside (sheet metal) duct
dimensions. Ductwork shall be sheetmetal furnished and installed in
accordance with SMACNA Low Velocity Duct Manual AIA File No. 30-
D4.
2. All ductwork to be galvanized steel.
3. All return paths shall be ducted. Panning of the structure is not
allowable.
4. All ductwork seams and joints shall be sealed with mastic. Duct tape is
not allowable.
5. All ductwork which is visible behind a grille, register or diffuser shall be
painted flat black.
B. Acceptable Manufacturer
1. Low velocity flexible ducts: acoustically insulated consisting of inner
core of perforated one ply corrugated duct, 1" thick insulation, and vapor
barrier cover. The flexible duct must be approved by the code authority
for the specific application.
2. Round duct connectors: Factory fabricated galvanized for insulated
ducts, steel adaptor plate on glass fiber ducts. Butterfly damper and
quadrant operator on all applications except VAV systems upstream of
VAV boxes.
3. Flexible connections. 24 oz. per yard, U.L. approved material.
4. Turning Vanes (Provide in all rectangular elbows).
5. Opposed Blade Dampers (for duct split and where specified).
a. Steel or aluminum construction with work driver operator.
Screwdriver slotted shaft, factory assembled.
b. Sizes up through 36" x 12": Barber Colman AOOG, T & B 7s, Titus
AG-35B, Krueger OBD-DM, Anemostat OB4, Carnes 800, Agitair
OB, J & J OBD-DM, or equivalent.
5/7/14 Elk Meadows 15800-2
c. Sizes larger than 36" x 12": Multi-damper with external handle and
quadrant type locking device Quadrant Regulator. Blades not to
exceed 6" in width.
6. Volume Extractors.
a. Steel or aluminum construction with vanes on 2" centers, gauge
operated. Manual operator attached to branch duct. Carnes 1250,
Titus AG-ss5, T & B VLR, Anemostat DT2M, Krueger EX-88A,
Agitair, Branchtrol S-2, J & J EX 9, Millaire Ex-1 or equivalent.
7. Duct Liner (Inside the Duct for Rectangular Ducts).
a. Insulate all supply ducts and return ducts with 1/2" thick AP
Armaflex SA Black Duct Liner. Liner shall be non-fibrous, closed
cell foam, made with Microban antimicrobial protection. Outside air
intake ducts shall have 1” thick insulation with an R-value of 4.2
minimum.
8. Duct Wrap (Round Rigid Ducts and Unlined Rectangular Ducts).
a. Insulate with 2" thick, 0.75 pcf density, thermal insulation blanket.
Knauf or equivalent.
END OF SECTION
5/7/14 Lot 1 Elk Meadows 15900-1
SECTION 15900--CONTROLS AND INSTRUMENTATION
1.01 DESCRIPTION
A. The Temperature Control System: Electric and electronic to comprise a
complete system, furnished and supervised by the Temperature Control
Manufacturer. The control system shall be able to be remotely changed from
an occupied to an unoccupied state.
B. Wiring - General
1. Comply with the National Electric Code, and the Electrical Division of
these specifications.
2. Run wiring in metallic conduit, tubing or raceways. Exceptions:
a. NEC class 2 low voltage wiring where not exposed to view such as
above suspended ceiling in shafts, etc., may be run in cable. (Not
allowable above ceilings used as return air plenums).
b. Wiring enclosed in Temperature Control panels.
3. Low volt sensor wires to be either shielded or twisted pairs.
C. Wiring: One Contractor shall be solely responsible for all temperature
control wiring. All wiring and installation in connection with the automatic
control system to be the responsibility of the Mechanical Division,
supervised by the Control Manufacturer or his representative. Upon
completion of the installation the control manufacturer or his representative
shall link all valves and dampers and check out the wiring and calibrate
controls furnished under this section.
D. Control Settings: All control settings are tentative, equipment shall have
adjustable settings.
1.02 ACCEPTABLE MANUFACTURERS
A. This specification is based on Honeywell equipment. It is recognized that
packaged equipment comes with other names on controls and that some
functions are accomplished with other named components. This
specification does not intend to prohibit this practice.
5/7/14 Lot 1 Elk Meadows 15900-2
1.03 MATERIALS AND EQUIPMENT
A. Low Voltage Power
1. Control devices and panel containing low voltage power sources shall
comply with NEC Class 2 requirements (current limiting), or supplied
with branch circuit fusing to limit control circuit current to NEC Class 2.
Control transformers; of the current limiting type, or installed with
primary disconnect and overload protection.
B. Thermostats
1. 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.
C. Dampers: Pacific Series 210, Johnson "Proportion-Air", Honeywell
"Moduflow Low Leakage", Ruskin"CD250 Low Leakage Penn Air Control
Damper PBD or OBD or equivalent.
D. Valves
1. Valves in water and antifreeze system shall be sized for not more than 3
feet of pressure drop.
E. 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 closed
outside air damper. They shall have an isolated set of contacts for alarm
system.
END OF SECTION
END OF DIVISION
HEAT LOSS / HEAT GAIN SUMMARYJOB NAME: Elk MeadowsJOB NUMBER: 14037DATE: 5/7/2014CALCS BY: DRC(USER SHALL INPUT YELLOW CELLS)SITE ELEVATION = 8150 Wall Insulation (avg) R- 23.5TRANSFER FACTOR = 0.79 Roof Insulation (avg) R- 58.6COOLING AIRFLOW ΔT =20 Infiltration (nach) 0.3WINDOW VALUES (U, S.C.) 0.32, 0.46 Winter Design Temp (indoor/ outdoor) 70 / -20LIGHTING LOAD (W/S.F.) 1, 3 Summer Design Temp (indoor/ outdoor) 75 / 90ROOM FLOOR AREA EFFECTIVE(SF) AREA (SF) SENS LATENT TOTAL BTU/H BTU/SF101-Garage 648 600 3700 0 3700 11300 19103-Mud 201 176 800 0 800 2800 16105-Entry 248 206 5300 0 5300 6200 30109-Bed 1 233 221 2900 100 3000 3900 18110-Bath 1 55 31 600 0 600 200 6112-Family 275 275 5500 700 6200 5800 21113-Bed 2 236 224 2600 102 2702 3800 17115-Bath 2 69 39 800 0 800 1100 28116-Laundry 46 28 1200 0 1200 200 7202-Powder 38 29 500 0 500 200 7203-Bath 3 59 32 800 0 800 700 22205-Bed 3 224 208 2400 150 2550 3100 15206-Master Bath 154 70 2700 0 2700 2000 29207-Master Bed 270 270 4800 250 5050 5700 21209-Master Closet 92 53 700 0 700 1400 26212-Kitchen, Living 662 562 18900 350 19250 13500 24215-Dining 228 228 6200 800 7000 5600 25217-Den 188 180 3300 100 3400 3900 22TOTALS / AVG'S.3926 63700 2552 66252 71400 18LOT 3COOLING HEATING