HomeMy WebLinkAboutB11-0017 Mechanical Compliance CertificateCOMcheck Software Version 3.8.0
Mechanical Compliance Certificate
20091ECC
Section 1: Project Information
Project Type: New Construction
Project Title: Lionshead Welcome Center
Construction Site: Owner/Agent: Designer/Contractor:
Town of Vail
Section 2: General Information
Building Location (for weather data): Vail, Colorado
Climate Zone: 6b
Section 3: Mechanical Systems List t
Ouantitv System Type & Description =0'.ca
1 FC-1: Heating: Heating equipment (Hydronic or Steam Coil), Hot Water, Capacity 161 kBtulh I Cooling: Cooling >Cmjequipment (Field-Assembled OX System), Capacity 60 kBtulh, Air-Cooled Condenser I Single Zone ....
FC-2: Heating: Heating equipment (Hydronic or Steam Coil), Hot Water, Capacity 66 kBtulh I Cooling: Cooling o I kl.~
equipment (Field-Assembled DX System), Capacity 48 kBtulh, Air-Cooled Condenser I Single Zone C~"J
FC-3: Heating: Heating equipment (Hydronic or Steam Coil), Hot Water, Capacity 78 kBtulh I Cooling: Cooling ~(.)
equipment (Reid-Assembled OX System), Capacity 60 kBtulh, Air-Cooled Condenser I Single Zone O~
FC-4: Heating: Heating equipment (Hydronic or Steam Coil), Hot Water, Capacity 130 kBtulh I Cooling: Cooling t-u..
equipment (Field-Assembled OX System), Capacity 60 kBtulh, Air-Cooled Condenser I Single Zone
UHs CUHs: Heating: Heating equipment (Unit Heater), Hot Water, Capacity 24 kBtuIh
LI
Boiler Plant: Heating: Hot Water Boiler, Cc!pacity 1200 kBtu/h, Gas, Efficiency: 90.00 % Et o
Section 4: Requirements Checklist
Requirements Specific To: FC-1 :
D 1. Specified equipment consists of field-assembled components -efficiency documentation provided .-----D 2. Cooling system provides a means to relieve excess outdoor air during economizer operation 1\ iF~) [r~, I;
o 3. Balancing and pressure test connections on all hydronic tenninal devices il: L"--=~
o 4. Integrated air economizer required i L!
o 5. Hot gas bypass limited to 50% of total cooling capacity iii: FEB 2 3 2011
Requirements Specific To: FC-2 : I.L U
D 1. Specified equipment consists of field-assembled components -efficiency documentation prorded 'TO \!\ f!\' C C \. '.~ 1L,
D 2. Balancing and pressure test connections on all hydronic tenninal devices • ~ l , , .. ~__~_~,
D 3. Hot gas bypass limited to 50% of total cooling capacity
Requirements Specific To: FC·3 :
o 1. Specified equipment consists of field-assembled components -efficiency documentation provIded
o 2. Cooling system provides a means to relieve excess outdoor air during economizer operation.
o 3. Balancing and pressure test connections on all hydronic terminal devices
o 4. Integrated air economizer required
o 5. Hot gas bypass limited to 50% of total cooling capacity 8
Requirements Specific To: FC-4 :
o 1. Specified equipment consists of field-assembled components -efficiency documentation provided ...• .....
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o 2. Cooling system provIdes a means to relIeve excess outdoor air during economizer operation.
o 3. Balancing and pressure test connections on all hydronlc terminal devices
o 4. Integrated air economizer required
o 5. Hot gas bypass limited to 50% of total cooling capacity
Requirements Specific To: UHs CUHs:
o 1. Balancing and pressure test connections on all hydronlc terminal devices
Requirements Specific To: Boifer Plant:
o 1. Equipment minimum efficiency: Boller Thennal Efficiency 75% Et 80% Ec
o 2. Newly purchased heating equipment meets lhe efficiency requirements
-used equipment must meet 80% Et @ maximum capacity
o 3. Systems with multiple boilers have automatic controls capable of sequencing boiler operation
o 4. Hydronic heating systems comprised of a single boiler and >500 kBtuJh input design capacity
include either a multistaged or modulating burner
Generic Requirements: Must be met by a/l systems to which the requirement is applicable:
o 1. Plant eqUipment and system capacity no greater than needed to meet loads
o Exception: Standby equipment automatically off when pJimary system is operating
o Exception: Multiple units controlled to sequence operation as a function of load
o 2. Minimum one temperature control device per system
o 3. Minimum one humidity control device per installed humidification/dehumidification system
o 4. Load calculations per ASHRAEIACCA Standard 183
o 5. Automatic Controls: Setback to 55·F (heat) and 8S·F (cool); 7 -day clock,
2-houroccupantoverride, 1~hourbackup
o Exception: Continuously operating zones
o Exception: 2 kW demand or less, submit calculations
o 6. Outside-air source for ventilation; system capable of reducing OSA to required minimum
o 7. R-5 supply and retum air duct insulation In unconditioned spaces
R-8 supply and return air duct insulation outside the building
R-8 insulation between ducts and the building exterior when ducts are part of a building assembly
o Exception: Ducts located within equipment
o Exception: Duels with interior and exterior temperature difference not exceeding 15°F.
o 8. Mechanical fasteners and sealants used to connect ducts and air distribution equipment
o 9. Ducts sealed -longitudinal seams on rigid duels; transverse seams on all ducts;
UL 181A or 181B tapes and mastics
o 10. Hot water pipe insulation: 1.5 in. for pipes <=1.5 in. and 2 in. for pipes >.1.5 in.
Chilled waterlrefrigerantlbrine pipe insulation: 1.5 in. for pipes <=1.5 in. and 1.5 in. for pipes >1.5 In.
Steam pipe insulation: 1.5 In. for pipes <=1.5 in. and 3 In. for pipes > 1.5 in.
o Exception: Piping within HVAC equipment
o Exception: Fluid temperatures between 55 and 105°F.
o Exception: Auid not heated or cooled with renewable energy.
o Exception: Piping within room fan-coil (with AHRI440 rating) and unit ventilators (with AHRI840 rating).
o Exception: Runouls <4 ft In length.
o 11.0peration and maintenance manual provided to building owner
o 12.Thermostatic controls have S·F deadband
o Exception: Thermostats requiring manual changeover between heating and cooling
o Exception: special occupancy or special applications where wide temperature ranges are not acceptable and are approved by the
aulhority having jurisdiction.
o 13.Hot water distribution systems >=300 kBtulh must have one of the following:
a) controls that reset supply water temperature by 25% of 5uppJylretum delta T
b) mechanical or electrical adjustable-speed pump drive(s)
c) two-way valves at all heating coils
d} mulliple-stage pumps
e) other system controls that reduce pump flow by at least 50% based on load
-calculations required
o Exception: Where the supply temperature reset controls cannot be implemented wilhout causing improper operation of heating.
cooling, humidification, or dehumidifICation systems.
o Exception: Hydronic systems that use variable flow to reduce pumping energy.
o 14.Balancing devIces provided in accordance with IMC (2006) 603.17
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o 15.Demand control ventilation (DCV) p/'9Sent for high design occupancy areas (>40 person/1000 ft2 in spaces >500 ft2)
and served by systems with anyone of 1) an air-side economizer, 2) automatic modulating control of the outdoor air damper, or 3} a
design outdoor airflow greater than 3000 cfm.
o Exception: Systems with heat recovery.
o Exception: Multiple-zone systems without DOC of individual zones communicating with a central control panel.
o Exception: Systems with a design outdoor airflow less than 1200 cfm.
o Exception: Spaces where the supply airflow rate minus any makeup or outgoing transfer air requirement is less than 1200 cfm. o 16.Motorized, automatic shutoff dampers required on exhaust and outdoor air supply openings
o Excepllon: Gravity dampers acceptable in buildings <3 stories
o Exception: Gravity dampers acceptable in systems with outside or exhaust air flow rates
less than 300 cfm where dampers are intenocked with fan
o 17.Automatic controls for freeze protection systems present
o 18. Three-pipe systems not used
o 19.Exhaust air heat recovery included for systems 5,000 cfm or greater with
more than 70% outside air fraction or specifically exempted
o Exception: Hazardous exhaust systems, commercial kitchen and clothes dryer exhaust systems that the International Mechanical
Code prohibits the use of energy recovery systems.
o Exception: Systems serving spaces that are heated and not cooled to less than aO"F.
o Exception: Where more than 60 percent of the outdoor healing energy Is provided from site-recovered or site solar enelQY.
o Exception: Heating systems in climates with less than 3600 HOD.
o Exception: Cooling systems in climates with a 1 percent cooling design wet-bulb temperature less than 64·F.
o Exception: Systems requiring dehumidification that employ energy recovery in series with the cooling coil.
o Exception: Laboratory fume hood exhaust systems that have either a variable air volume system capable of reducing exhaust and
makeup air volume to 50 percent or less of design values or, a separate make up air supply meeting the following makeup air
requirements: a} at least 75 percent of exhaust flow rate, b) heated to no more than 2°F below room setpoint temperature, c) cooled
to no lower than 3'F above room setpolnt temperature, d) no humidification added, e) no simultaneous heating and cooling.
Section 5: Compliance Statement
Compliance Statement The proposed mechanical design represented in this document Is consistent with the building plans, specifications
and other calculations submitted with this permit application. The prop d mechanical sy!i,tems have been designed to meet the 2009 IECC
requirements in COMcheckVersion 3.B.0 and to comply with the ma da he Requirements Checklist
Name-Title Date
Project Title: Lionshead Welcome Center Report date: 02118/11
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COMcheck Software Version 3.8.0
Mechanical Requirements
Description
20091ECC
The following list provides more detailed descriptions of the requirements in Section 4 of the Mechanical Compliance
Certificate.
Requirements Specific To: FC·1 :
1. The specified cooling system consists offield-assembled components. Documentation must be submitted showing the system meets
ASHRAE 90.1 Code equipment efficiency requirements for a comparable package equipment type and capacity range.
2. Cooling system provides a means to relieve excess outdoor air during economizer operation to prevent overpressurizing the building.
3. Hydronic heating and cooling coils must be equipped with a way to pressure test connections and measure and balance water flow and
pressure.
4. An integrated air economizer is required for individual cooling systems over 54 kBtu/h in the selected project location and allows
simUltaneous operation of outdoor-air and mechanical cooling.
5. For cooling systems <= 240 kBtulh, maximum hot gas bypass capacity must be no more than 50% total cooling capacity.
Requirements Specific To: FC·2 :
1. The specified cooling system consists of field-assembled components. Documentation must be submitted showing the system meets
ASHRAE 90.1 Code equipment efficiency requirements for a comparable package equipment type and capacity range.
2. Hydronic healing and cooling coils must be equipped with a way to pressure test connections and measure and balance water flow and
pressure.
3. For cooling systems <= 240 kBtulh, maximum hot gas bypass capacity must be no more than 50% total cooling capacity.
Requirements Specific To: FC·3 :
1. The specified cooling system consists of field-assembled components. Documentation must be submitted showing the system meets
ASH RAE 90.1 Code equipment efficiency requirements for a comparable package equipment type and capacity range.
2. Cooling system provides a means to relieve excess outdoor air during economizer operation to prevent overpressurizing the building.
3. Hydronic heating and cooling coils must be equipped with a way to pressure test connections and measure and balance water flow and
pressure.
4. An integrated air economizer is required for individual cooling systems over 54 kBtulh in the selected project location and allows
simultaneous operation of outdoor-air and mechanical cooling.
5. For cooling systems <= 240 kBtulh, maximum hot gas bypass capacity must be no more than 50% total cooling capacity.
Requirements Specific To: FC-4 :
1. The speclfied cooling system consists of field-assembled components. Documentation must be submitted showing the system meets
ASHRAE 90.1 Code equipment efficiency requirements for a comparable package equipment type and capacity range.
2. Cooling system provides a means to relieve excess outdoor air during economizer operation to prevent overpressurizing the building.
3. Hydronic heating and cooling coils must be equipped with a way to pressure test connections and measure and balance water flow and
pressure.
4. An integrated air economizer is required for individual cooling systems over 54 kBtulh in the selected project location and allows
simultaneous operation of outdoor-air and mechanical cooling.
5. For COOling systems <= 240 kBtuJh, maximum hot gas bypass capacity must be no more than 50% total cooling capacity.
Requirements Specific To: UHs CUHs :
1. Hydronic heating and cooling coils must be equipped with a way to pressure test connections and measure and balance water flow and
pressure.
Requirements Specific To: Boiler Plant:
1. The specified heating and/or cooling equipment is covered by the ASHRAE 90.1 Code and must meet the following minimum efficiency:
Boiler Thermal Efficiency 75% Et 80% Ec
2. The speclfied heating equipment is covered by Federal minimum efficiency requirements. New equipment of this type can be assumed to
meet or exceed ASHRAE 90.1 Code requirements for equipment efficiency. Used equipment must meet 80% Et @ maximum capacity.
3. Systems with multiple boilers have automatic controls capable of sequencing the operation of the boilers.
4. Hydronic healing systems comprised of a single boiler and >500 kBtulh input design capacity Include either a multistaged or modulating
burner.
Generic Requirements: Must be met by all systems to which the requirement is applicable:
1. All equipment and systems must be sized to be no greater than needed to meet calculated loads. A single piece of equipment providing
both heating and cooling must satisfy this provision for one function with the capacity for the other function as small as possible, within
available equipment options.
- Exception: The equipment and/or system capacity may be greater than calculated loads for standby purposes. Standby equipment
must be automatically controlled to be off when the primary equipment and/or system is operating.
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-Exception: Multlple units of the same equipment type whose combined capacities exceed the calculated load are allowed if they are
provided with controls to sequence operation of the units as the load increases or decreases.
2. Each heating or cooling system serving a single zone must have Its own temperature control device.
3. Each humidification system must have Its own humidity control device.
4. Design heating and cooling loads for the building must be determined using procedures in the ASHRAE Handbook of Fundamentals or
an approved equivalent calculation prooedure.
5. The system or zone control must be a programmable thermostat or other automatic control meeting the following criteria:
a) capable of setting back temperature to 55"F during heating and setting up to 8S0F during cooling,
b) capable of automatically setting back or shutting down systems dtJring unoccupied hours using 7 different day schedules,
c) have an accessible 2-hour occupant override,
d) have a battery back-up capable of maintaining programmed settings for at least 10 hours without power.
-Exception: A setback or shutoff control is not required on thermostats that control systems serving areas that operate continuously.
-Exception: A setback or shutoff control is not required on systems with total energy demand of 2 kW (6,826 Btu/h) or less.
6. The system must supply outside ventilation air as required by Chapter 4 of the Intemational Mechanical Code. If the ventilation system is
designed to supply outdoor-air quantities exceeding minimum requIred levels, the system must be capable of reducing outdoor-air flow
to the minimum required levels.
7. Air ducts must be Insulated to the following levels:
a) Supply and retum air ducts for conditioned air located in unconditioned spaces (spaces neither heated nor cooled) must be insulated
with a minimum of R-5. Unconditioned spaces include attics, crawl spaces, unheated basements, and unheated garages.
b) Supply and retum air ducts and plenums must be insulated to a minimum of R-8 when located outside the building.
c) When ducts are located within exterior components (e.g., floors or roofs), minimum R-8 insulation is required only between the duct
and the buRdlng exterior.
- Exception: Duct insulation Is not required on ducts located within equipment.
-Exception: Duct insulation Is not required when the design temperature difference between the interior and exterior of the duct or
plenum does not exceed 15°F.
8. Mechanical fasteners and seals, mastics, or gaskets must be used when connecting ducts to fans and other air distribution equipment,
including multiple-zone terminal units.
9. All jOints, longitudinal and transverse seams, and connections in ductwork must be securely sealed using
weldments; mechanical fasteners with seals, gaskets, or mastics; mesh and mastic sealing systems; or tapes.
Tapes and mastics must be listed and labeled in accordance with UL 181A and shall be marked '181A-P' for pressure sensitive tape,
'181A-M' for mastic or '181A-H' for heat-sensitive tape. Tapes and mastics used to seal flexible air ducts
and flexible air connectors shall comply with UL 181 B and shall be marked '181 B-FX' for pressure-sensitive tape or
'181 BoM' for mastic. Unlisted duct tape is not permitted as a sealant on any metal ducts.
10. All pipes serving space-conditioning systems must be Insulated as foltows:
Hot water piping for heating systems:
1112 in. for pipes <=11/2-in. nominal diameter,
2 in. for pipes >1 112-in. nominal diameter.
Chilled water, refrigerant, and brine piping systems:
1 112 in. insulation for pipes <=1 1J2-in. nominal diameter,
1 112 In. insulation for pipes >1 112-in. nominal diameter.
Steam piping:
1 112 in. insulation for pipes <=1 1I2·in. nominal diameter,
3ln. insulalion for pipes >1 112-in. nominal diameter.
-Exception: Pipe insulation is not required for factory-installed piping within HVAC equipment.
-Exception: Pipe insulation Is not required for piping that conveys fluids having a design operating temperature range between 5S0F
and 105"F.
-Exception: Pipe Insulation is not required for piping that conveys fluids that have not been heated or cooled through the use of fossil
fuels or electric power.
-Exception: Piping within room fan-coil (with AHRI440 rating) and unit ventilators (with AHRI840 rating).
-Exception: Pipe insulation is not required for runout piping not exceeding 4 ft In length and 1 in. In diameter between the control valve
and HVAC coil.
11. Operation and maintenance documentation must be provided to the owner that Includes at least the following information:
a) equipment capacity (Input and output) and required maintenance aetions
b} equipment operation and maintenance manuals
c) HVAC system control maintenance and ca&bratlon information, including wiring diagrams, schematics, and control sequence
descriptions; desired orfield-determined set points must be permanently recorded on conlrol drawings, at control devices, or, for digital
control systems, in programming comments
d) complete narrative of how each system is intended to operate.
12. Thermostats controlling both heating and cooling must be capable of maintaining a 5°F deadband (a range of temperature where no
heating or cooling is provided).
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" Exception: Oeadband capability Is not required If the thermostat does not have automatic changeover capability between heating and
cooling.
-Exception: Special occupancy or special applications where wide temperature ranges are not acceptable and are approved by the
authority having Jurisdiction.
13. Hot water space-heating systems with a capacity exceeding 300 kBtulh supplying heated water to comfort conditioning systems must
include controls that automatically reset supply water temperatures by representative building loads (induding retum water temperature)
or by outside air temperature.
-Exception: Where the supply temperature reset controls cannot be implemented without causing improper operation of heating,
cooling, humidification, or dehumidification systems.
-Exception: Hydronic systems that use variable flow to reduce pumping energy.
14. Bafandng devices provided in accordance with fMC (2006) 603.17.
15. Demand control ventilation (OCV) required for high design occupancy areas (>40 person/1000 112 in spaces >500 112) and served by
systems with anyone of 1) an air-side economizer, 2) automatic modulating control of the outdoor air damper, or 3) a design outdoor
airflow greater than 3000 cfm.
-Exception: Systems with heat repovery.
" Exception: Multiple-zone systems without DOC of individual zones communicating with a central control panel.
-Exception: Systems with a design outdoor airflow less than 1200 cfm.
" Exception: Spaces where the supply airflow rate minus any makeup or outgoing transfer air requirement is less than 1200 cfm.
16. Outdoor air supply and exhaust systems must have motorized dampers that automatically shut when the systems or spaces served are
not in use. Dampers must be capable of automatically shutting off during preoccupancy building wann-up, cool-down, and setback,
except when ventilation reduces energy costs (e.g., night purge) or when ventilation must be supplied to meet code reqUirements.
Both outdoor air supply and exhaust air dampers must have a maximum leakage rate of 3 cfmlft2 at 1.0 in w.g. when tested in
accordance with AMCA Standard 500.
-Exception: Gravlly (non-motorized) dampers are acceptable in buildings less than three stories in height.
" Exception: Systems with a design outside air Intake or exhaust capacity of 300 cfm (140 Us) or less that are equipped with motor
operated dampers that open and dose when the unit is energized and de-energized, respectively.
17. All freeze protection systems,lncluding self-regulating heat tracing, must include automatic controls
capable of shutting off the systems when outside air temperatures are above 40°F or when the conditions
. of the protected fluid will prevent freezing. Snow-and ice-mefting systems must include automatic controls
capable of shutting off the systems when the pavement temperature is above 50"F and no precipitation is falling,
and an automatic or manual control that will a[low shutoff when the outdoor temperature is above 40°F.
18. Hydronic systems that use a common rerum system for both hot water and chilled water must not be used.
19. Individual fan systems with a design supply air capacity of 5000 cfm or greater and minimum outside air supply of 70 percent or greater
of the supply air capacity must have an energy recovery system with at least a 50 percent effectiveness. Where cooling with outdoor air
is required there is a means to bypass or control the energy recovery system to permit cooling with outdoor air.
-Exception: Hazardous exhaust systems, commerdal kitchen and clothes dryer ex.haust systems that the International Mechanical
Code prohibits the use of energy recovery systems.
-Exception: Systems serving spaces that are heated and not cooled to less than 60"F.
Exception: Where more than 60 percent of the outdoor heating energy is provided from site-recovered or site solar energy.
-Exception: Heating systems in climates with less than 3600 HOD.
-Exception: Cooling systems in climates with a 1 percent cooling design wet-bUlb temperature less than 64"F.
-Exception: Systems requiring dehumidification that employ energy recovery In series with the cooling coil.
" exception: Laboratory fume hood exhaust systems that have either a variable air volume system capable of reducing exhaust and
makeup air volume to 50 percent or less of design values or, a separate make up air supply meeting the following makeup air
requirements: a) at least 75 percent of exhaust flow rate. b) heated to no more than 2°F below room setpolnt temperature, c) cooled
to no lower than 3°F above room setpoint temperature, d) no humidification added, el no simultaneous heating and cooling.
Project nUe: Uonshead Welcome Center Report date: 02118111
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