Correspondence "OUP2613_ -00 t6ol
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COMcheck Software Version 3.9:1 .
Interior Lighting Compliance •
- - -- - Certificate • • .
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2010 Oregon Energy Efficiency Specialty Code r' Y ,
AUG 14 2012
Section 1: Project Information
Project Type: New Construction O9 :a y ;;.,` rw il d; pi
• Project Title : Things Remembered" 1'
Construction Site: Owner /Agent: Designer /Contractor:
Washington Square Randall A. Nelson, P.E.
Space No. A15. • 14817 West 95th Street
Portland, OR Lenexa, KS 66215 •
913- 322 -5150
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Section 2: Interior Lighting and Power Calculation
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A B - C D
Area Category Floor Area Allowed . Allowed Watts .
(ft2) Watts / ft2 • (B x C)
Retail Sales (Retail:Sales Area) (Ceiling Height 11 ft.) 1251 1.5 1877
Allowance: Jewelry, crystal, china highlighting / Fix. ID: T .1145(a) 2.5 2863(b)
Stock Room (Common Space Types:Active Storage) (Ceiling Height 12 ft.) 599 0.66 395
Restroom (Common Space Types:Restrooms) (Ceiling Height 8 ft.) 65 0.82 53
Total Allowed Watts = 5188
(a) Area claimed must not exceed the illuminated area permitted for this allowance type.
(b) Allowance is (B x C) or the actual wattage of the fixtures given in Section 2, whichever is less.
r (e) Additional controls/switching allowances are based on number of fixtures or wattage controlled, not floor area of allowance.
wr Section 3: Interior Lighting Fixture Schedule
� e
' B C D E
• Fixture ID : Description / Lamp / Wattage Per Lamp / Ballast Lamps / # of Fixture (C X D)
Fixture Fixtures Watt.
;Retail Sales ( Retail:Sales Area 1251 sq.ft.)
• HID 1: B: 1 -lamp adjustable spot / Ceramic Metal Halide 39W / Standard • 1 14 . 44 616
HID 2: C: 2 -lamp adjustable spot / Ceramic Metal Halide 39W / Standard - 2 . '' 4 88 352
Track lighting 2: T: Wattage based on 4.0 feet of track 0 ' 0 0 Exempt
Exemption:Retail Display Window . •
Track lighting 1: T: Track fixture Wattage based on current limiting device capacity 0 0 0 3600
Linear Fluorescent 2: FC: 3' under cabinet light / 36" T8 25W /- Electronic 1 3 30 90
■ ................... .
:Stock Room ( Common Space Types:Active Storage 599 sq.ft.)
Linear F luorescent 1: D: 4' strip fluorescent / 48" T8 32W / Electronic 2 7 61 427
r .Restroom ( Common Space Types:Restrooms 65 sq.ft.) -
Linear Fluorescent 3: U: vanity light / 24" T8 17W / Electronic 1 1 . 25 25
• Total Proposed Watts = 5110
Section 4: Requirements Checklist .
In the following requirements, the relevant code section reference is shown in (j. ' +' denotes that more details exist in the specified code .
section. Checkboxes identify requirements that the applicant has not acknowledged as being met. Check marked requirements identify those
. the applicant acknowledges are met or excepted from compliance. 'Plans reference page /section' identifies where in the plans/specs the
requirement can be verified as being satisfied.
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Lighting Wattage:
✓ 1. [505.1 +] Total proposed watts must be less than or equal to total allowed watts.
Project Title: Things Remembered Report date: 08/03/12 •
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Allowed Wattage: 5188 Proposed Wattage: 5110
Complies: YES
Mandatory Requirements:
✓ 2. [505.4] Exit signs. Internally illuminated exit signs shall not exceed 5 watts per side.
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Plans reference page /section: E1.0
✓ 3. [505.2.2.3 +] Daylight zone control. All daylight zones are provided with individual controls that control the lights independent of general
area lighting in the non - daylight zone. In all individual daylight zones larger than 350 sq.ft., automatic daylight controls is provided. I i
Automatic daylight sensing controls reduce the light output of the controlled luminaires at least 50 percent, and provide an automatic
OFF control, while maintaining a uniform level of illumination. Contiguous daylight zones adjacent to vertical fenestration may be
controlled by a single controlling device provided that they do not include zones facing more than two adjacent cardinal orientations
• (i.e., north, east, south, west). Daylight zones under skylights shall be controlled separately from daylight zones adjacent to vertical
fenestration.
Plans reference page /section: N/A
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✓ 4. [505.2.1 +] Interior lighting controls. At least one local shutoff lighting control has been provided for every 2,000 square feet of lit floor
area and each area enclosed by walls or floor -to- ceiling partitions. The required controls are located within the area served by the
controls or are a remote switch that identifies the lights served and indicates their status.
Plans reference page /section: E1.0
✓ 5. [505.2.3 +] Sleeping unit controls. Master switch at entry to hotel /motel guest room.
Plans reference page /section: N/A
✓ 6. [505.2.1.1] Egress lighting. Egress illumination is controlled by a combination of listed emergency relay and occupancy sensors to shut
off during periods that the building space served by the means of egress is unoccupied.
Plans reference page /section:
✓ 7. [505.2.2 +] Additional controls. Each area that is required to have a manual control shall have additional controls that meet the
requirements of Sections 505.2.2.1 and 505.2.2.2.
Plans reference page /section: E1_0
• 8. [505.2.2.1 +] Light reduction controls. Each space required to have a manual control also allows for reducing the connected lighting load
by at least 50 percent by either
1) controlling (dimming or multi -level switching) all luminaires; or
2) dual switching of alternate rows of luminaires, alternate luminaires, or alternate lamps; or
3) switching the middle lamp luminaires independently of other lamps; or -4
4) switching each luminaire or each lamp.
Plans reference page /section: E1.0
v i 9. [505.2.2.2] Buildings larger than 2,000 square feet are equipped with an automatic control device to shut off lighting in those areas. This
automatic control device shall function on either:
1) a scheduled basis, using time- of -day, with an independent program schedule that controls the interior lighting in areas that do not
exceed 10,000 square feet and are not more than one floor, or
2) an occupant sensor that shall turn lighting off within 30 minutes of an occupant leaving a space; or
3) a signal from another control or alarm system that indicates the area is unoccupied.
Plans reference page /section: E1.0
• 101505.2.2] Occupancy sensors in rooms that include daylight zones are required to have Manual ON activation.
Plans reference page /section: N/A
• 111505.2.2] An occupant sensor control device is installed that automatically turns lighting off within 30 minutes of all occupants leaving a
space.
Plans reference page /section: E1.0
• 12.[50512.2] Additional controls. An occupant sensor control device that automatically turns lighting off within 30 minutes of all occupants
leaving a space or a locally activated switch that automatically turns lighting off within 30 minutes of being activated is installed in all
storage and supply rooms up to 1000 square feet.
Plans reference page /section: E1.0
✓ 13.[505.2.2.2.1] Occupant override. Automatic lighting shutoff operating on a time -of -day scheduled basis incorporates an override
switching device that: 1) is readily accessible, 2) is located so that a person using the device can see the lights or area controlled
by that switch, or so that the area being lit is annunciated, 3) is manually operated, 4) allows the lighting to remain on for no more than
2 hours when an override is initiated, and 5) controls an area not exceeding 2,000 square feet.
Plans reference page /section: E1.0
Project Title: Things Remembered Report date: 08/03/12
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✓ 14.[505.2.2.2.2] Holiday scheduling. Automatic lighting shutoff operating on a time- of-day scheduled basis has an automatic holiday' • •
scheduling feature that turns off all loads for at least 24 hours, then resumes the normally scheduled operation..
Plans reference page /section: E1.0 •- •
•
✓ 15.[505.2.4 +] Exterior lighting controls. Lighting not designated for dusk -to -dawn operation shall be controlled by either a combination of a
r - photosensor and a time switch, or an astronomical time switch. Lighting designated for dusk -to -dawn operation shall be controlled by
an astronomical time switch or photosensor.
•
— Plans reference page/section:: N/A —
✓ 16.[505.3] Tandem wiring. The following luminaires located within the same area shall be tandem wired:
1. Fluorescent luminaires equipped with one, three or odd - numbered lamp configurations, that are recess- mounted within 10 feet
center -to -center of each other.
2. Fluorescent luminaires equipped with one, three or any odd - numbered lamp configuration, that are pendant- or surface- mounted
within 1 foot edge- to -edge of each other.
Plans reference page /section: N/A
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✓ 17. [505.5.1 +] Medical task lighting or art/history display lighting claimed to be exempt from compliance has a control device independent
of the control of the nonexempt lighting. -
Plans reference page /section: N/A
✓ 18.[505.7 +] Each dwelling unit in a building is metered separately.
Plans reference page /section: N/A
InterFC"Vg "SSES: Design, better than code. s
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Section 5: Compliance Statement
Compliance Statement: The proposed lighting design represented in this document is consistent with the building plans, specifications and
other calculations submitted with this permit application. The proposed lighting system has been designed to meetthe 2010 Oregon Energy
Efficiency Specialty Code requirements in COMcheck Version 3.9.1 and to comply with the mandatory requirements in the Requirements
Checklist.
J *04 SMaric1 7 — ELE(4121LA . 1'E51 bM42. ch,44 e. 8 3 — /z
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Project Title: Things Remembered . . • Report date: 08/03/12
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• COMcheck Software. Version 3.9.1
Mechanical Compliance Certificate •
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• 20 O regon = Energy Effici Spe Code •
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Section 1: Project Information .
•
•
• • Project Type: New•Construction •
• Project Title•:• Things Remembered ' •
•
• Construction Site: Owner /Agent: Designer /Contractor:
•
Washington Square Randall A. Nelson, P.E.
•
Space No. A15 • • . '. 14817 West 95th Street
Portland, OR . • • Lenexa, KS 66215
913 - 322 -5150 • •
Section 2: General Information
Building Location (for weather data): . Portland, Oregon
Climate Zone: 4c •
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Section 3: Mechanical Systems List
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Quantity System.Type & Description _
1 HVAC System 1 (Single Zone) : '
Heating: 1 each - Other, Electric, Capacity = 19 kBtu /h t
Section 4: Requirements Checklist •
In the following requirements;' the relevant code section reference is shown in [ J. ' +' denotes that more details exist in the specified code
section. Checkboxes identify requirements that the applicant has not acknowledged as being met. Check marked requirements identify those 1
the applicant acknowledges are met or excepted from compliance. 'Plans reference page /section' identifies where in the plans/specs the
requirement can be verified as being satisfied.
• Requirements Specific To: HVAC System 1 :
• 1. [503.2.6 +] Energy recovery ventilation systems. Individual fan systems that have both a design supply air capacity of 5,000 cfm or
greater and a minimum outside air supply of 70 percent or greater of the design supply air quantity have an energy recovery system.
Plans reference page /section: N/A
✓ 2. [503.3.2] Hydronic system controls. Hydronic systems of at least 300,000 Btu /h design output capacity supplying heated and chilled
water to comfort conditioning systems include controls that meet the requirements of Section 503.4.3.
•
Plans reference page /section:. N/A .
Generic Requirements: Must be met by all systems to which the requirement is applicable:
• 1. [503.2.1 +] Calculation of heating and cooling loads. Design loads are determined in accordance with the procedures described in the
ASHRAE/ACCA.Standard 183. Alternatively, design loads have been determined by an approved equivalent computation procedure.
•
• 2. [503.2.2 +] Equipment and system sizing. Heating and cooling equipment and systems capacity do not exceed the loads calculated in
accordance with Section 503.2.1.
Plans reference page /section: M2.0
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• 3. [503.2.3 +] HVAC Equipment Performance Requirements. Reported efficiencies have been tested and rated in accordance with the
applicable test procedure. The efficiency has been verified through certification under an approved certification program or, if no
certification program exists, the equipment efficiency ratings are supported by data furnished by the manufacturer.,
• 4. [503.2.4.1 +] Thermostatic Controls. The supply of heating and cooling energy to each zone is controlled by individual thermostatic
controls that respond to temperature within the zone. .
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Plans reference page /section: M1.0 • . •
✓ 5. [503.2.4.2] Set point overlap restriction. Where used to control both heating and cooling, zone thermostatic controls provide a
temperature range or dead band of at least 5 °F (2.8 °C) within which the supply of heating and cooling energy to the zone is capable of
being shut off or reduced to a minimum.
Plans reference page /section: M1.0
❑ 6..._[503.2.4.3] Optimum Start Controls.- Each _FiVAC_system_has_controls_that vary the_ start- _up_time of_the_system to.justmeet the_ _
temperature set point at time of occupancy.
Plans reference page /section: N/A V
✓ 7. [503.2.4.4 +] Off -hour controls. Each zone is provided with thermostatic setback controls that are controlled by either an automatic time
clock or programmable control system.
Plans reference page /section: M1.0
❑ 8. [503.2.4.5 +] Shutoff damper controls. Both outdoor air supply and exhaust are equipped with not less than Class I motorized dampers.
Exception(s): .
❑ Gravity dampers shall be permitted for outside air intake or exhaust airflows of 300 cfm or less.
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Plans reference page /section: N/A
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❑ 9. [503.2.4.6 +] Freeze Protection and Snow melt system controls. Freeze protection systems, such as heat tracing of outdoor piping and
heat exchangers, including self - regulating heat tracing, include automatic controls capable of shutting off the systems when outdoor air
temperatures meet code criteria..
Plans reference page /section: N/A
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❑ 10. [503.2.4.8] Separate air distribution systems. Zones with special process temperature requirements and/or humidity requirements are
served by separate air distribution systems from those serving zones requiring only comfort conditions; or shall include supplementary
control provisions so that the primary systems may be specifically controlled for comfort purposes only.
Exception(s):
❑ [503.2.4.8 +] Zones requiring only comfort heating or comfort cooling,that are served by a system primarily used for process
temperature and humidity control: - V
Plans reference page /section: N/A •
❑ 11. [503.2.4.9] Humidity control. If a system is equipped with a means to add or remove moisture to maintain specific humidity levels in a
zone or zones, a humidity control device is provided.
Plans reference page /section: N/A •
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• ❑ 12. [503.2.4.9.1] Humidity control. Where a humidity control device exists it is set to prevent the use of fossil fuel or electricity to produce
relative humidity in excess of 30 percent. Where a humidity control device is used for dehumidification, it is set to prevent the use of
fossil fuel or electricity to reduce relative humidity below 60 percent. •
Exception(s):
❑ Hospitals, process needs, archives, museums, critical equipment, and other non - comfort situations with specific humidity
. requirements outside this range.
•
Plans reference page /section: N/A
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❑ 13. [503.2.4.9.2] Humidity control. Where a humidity control device exists it is set to maintain a deadband of at least 10% relative humidity
• where no active humidification or dehumidification takes place.
Exception(s):
❑ Heating for dehumidification is provided with heat recovery or heat pumping and the mechanical cooling system efficiency is 10
percent higher than required in section 503.2.3, HVAC equipment performance requirements.
Plans reference page /section: N/A
• 14. [503.2.5] Ventilation. Ventilation, either natural or mechanical, is provided in accordance with Chapter 4 of the International Mechanical
Code. Where mechanical ventilation is provided, the system has the capability to reduce the outdoor air supply to the minimum
required by Chapter 4 of the International Mechanical Code.
Plans reference page /section: M2.0 - VAV MINIMUM
❑ 15. [503.2.5.1 +] Demand controlled ventilation (DCV). DCV is required for spaces larger than 500 ff2 for simple systems and spaces larger
than 150'ft2 for multiple zone systems.
Exception(s): V
❑ Systems with energy recovery complying with Section 503.2.6
❑ Spaces less than 750 ft2 (69.7 m2) where an occupancy sensor tums the fan off, closes the ventilation damper, or doses the
zone damper when the space is unoccupied.
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Plans reference page /section: N/A - MALL SYSTEM
• 16. [503.2.5.2 +] Kitchen hoods. Kitchen makeup is provided as required by the Oregon Mechanical Specialty Code.
Exception(s):
❑ Where hoods are used to exhaust ventilation air that would otherwise be exhausted by other fan systems.
LI Kitchen exhaust systems that include exhaust air energy recovery complying with section 503.2.6.
Plans reference page /section: N/A
• 17. [503.2.5.3 +] Enclosed parking garage ventilation controls. In Group S -2, enclosed parking garages used for storing or handling
automobiles employs automatic carbon monoxide sensing devices.
Plans reference page /section: N/A
• 18. [503.2.7 +] Duct and plenum insulation and sealing. All supply and return air ducts and plenums are insulated with the specified
insulation. When located within a building envelope assembly, the duct or plenum is separated from the building exterior or
unconditioned or exempt spaces by a minimum of R -8 insulation. All ducts, air handlers and filter boxes are sealed. Joints and seams
comply with Section 603.9 of the International Mechanical Code.
✓ 19. [503.2.7.1.1 +] Low - pressure duct systems. All longitudinal and transverse joints, seams and connections of low- pressure supply and
retum ducts are securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic -plus- embedded -fabric systems or
tapes installed in accordance with the manufacturer's installation instructions.
Plans reference page /section: M3.0
• 20. [503.2.7.1.2 +] Medium - pressure duct systems. All ducts and plenums designed to operate medium - pressure are insulated and sealed
in accordance with Section 503.2.7. Pressure classifications specific to the duct system are clearly indicated on the construction
documents.
Plans reference page /section: N/A
LI 21. [503.2.7.1.3 +] High - pressure duct systems. Ducts designed to operate at high - pressure are insulated and sealed in accordance with
Section 503.2.7. In addition, ducts and plenums are leak- tested in accordance with the SMACNA HVAC Air Duct Leakage Test Manual.
Plans reference page /section: N/A
• 22. [503.2.8 +] Piping Insulation. All pipes serving space- conditioning systems (hot water piping for heat systems, chilled water, refrigerant,
and brine piping systems, and steam piping) are insulated as specified by this section.
Exception(s):
• Pipe insulation is not required for factory- installed piping within HVAC equipment.
LI Pipe insulation is not required for piping that conveys fluids having a design operating temperature range between 60 °F and
105 °F.
LI Piping within room fan -coil (with AHRI440 rating) and unit ventilators (with AHRI840 rating).
• 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.
✓ 23. [503.2.9.1 +] Air system balancing. Each supply air outlet and zone terminal device is equipped with means for air balancing in
accordance with the requirements of IMC 603.17. Discharge dampers intended to modulate airflow are prohibited on constant volume
fans and variable volume fans with motors 10 horsepower.
Plans reference page /section: M1.0
LI 24. [503.2.9.2] Hydronic system balancing. Individual hydronic heating and cooling coils are equipped with means for balancing and
pressure test connections.
• Plans reference page /section: N/A
• 25. [503.2.9.3 +] Manuals. The construction documents require that an operating and maintenance manual be provided to the building
owner by the mechanical contractor. See long description for specifications.
Plans reference page /section: M3.0
• 26. [503.2.10 +] Air System Design and Control. Each HVAC system having a total fan system motor nameplate hp exceeding 5 hp meets
the provisions of Sections 503.2.10.1 through 503.2.10.2.
Plans reference page /section: N/A
ci 27. [503.2.10.1 +] Allowable fan floor horsepower. Each HVAC system at fan system design conditions does not exceed the allowable fan
system motor nameplate hp (Option 1) or fan system bhp (Option 2) as shown and calulated in requirement details.
Exception(s):
❑ Hospital and laboratory systems that utilize flow control devices on exhaust and /or return to maintain space pressure relationships
necessary for occupant health and safety or environmental control shall be permitted to use variable volume fan power limitation.
❑ Individual exhaust fans with motor nameplate horsepower of 1 hp or less.
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• Plans reference page/section: N/A • • '
• o 28. [503.2.10.2 +] Motor nameplate horsepower. For each fan, the selected•fan motor is no larger than the first available motor size greater
than the brake horsepower (bhp).
Exception(s): •
O For fans less than 6 bhp, where the first available motor larger than the brake horsepower has a nameplate rating within 50
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• percent of the bhp, selection of the next larger nameplate motor size is allowed.
o For fans 6 bhp and larger, where the first available motor larger than the bhp has a nameplate rating within 30 percent of the bhp,
selection of.the next larger nameplate motor size is allowed.
Plans reference page /section: N/A
• 29. [503.2.10.3.1] Large Volume Fan Systems. Fan systems over 8,000 (7 m3 /s) cfm without direct expansion cooling coils that serve
single zones reduce airflow based on space thermostat heating and cooling demand. A two -speed motor or variable frequency drive
reduces airflow to a maximum 60 percent of peak airflow or minimum ventilation air requirement as required by Chapter 4 of the
International Mechanical Code, whichever is greater.
Exception(s):
O Systems where the function of the supply air is for purposes other than temperature control, such as maintaining specific humidity
levels or supplying an exhaust system. .
Plans reference page /section: N/A •
• 30. [503.2.10.3.2 +] All air -conditioning equipment and air - handling units with direct expansion cooling and a cooling capacity at ARI
conditions greater than or equal to 110,000 Btu /h that serve single zones have their supply fan operation controlled according to code
specific requirements.
Exception(s):
• Systems where the function of the supply air is for purposes other than temperature control, such as maintaining specific humidity
levels or supplying an exhaust system.: .
Plans reference page /section: N/A
• 31. [503.2.10.4] Series fan - powered terminal unit fan motors. Fan motors for series fan - powered terminal units are
electronically- commutated motors and have a minimum motor efficiency of 70 percent when rated in accordance with NEMA Standard
MG 1 -2006 at full load rating conditions.
Plans reference page /section: N/A
• 32. [503.2.11] Heating outside a building. Systems installed to provide heat outside a building are radiant systems. Such heating systems
are controlled by an occupancy sensing device or a timer switch, so that the system is automatically deenergized when no occupants
are present.
Plans reference page /section:.N /A •
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Section 5: Compliance Statement .
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• 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 proposed mechanical systems have been designed to meet the 2010
Oregon Energy Efficiency Specialty Code requirements in COMcheck Version 3.9.1 and to comply with the mandatory requirements in the
Requirements Checklist.
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•
Name - Title Signature • Date
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Section 6: Post Construction Compliance Statement
• HVAC record drawings of the actual installation, system capacities, calibration 'information, and performance data for each equipment
provided to the owner. •
❑ HVAC O&M documents for all mechanical equipment and system provided to the owner by the mechanical contractor.
• Written HVAC balancing and operations report provided to the owner.
The above post construction requirements have been completed.
Principal Mechanical Designer -Name Signature Date
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Project Title: Things Remembered • Report date: 08/03/12
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(.1.;f1(1 COMcheck Software Version 3.9.1
Mechanical •
Description
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• 2010 Oregon Energy Efficiency Specialty Code •
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The following list provides more detailed descriptions of the requirements in Section 4 of the Mechanical Compliance
Certificate. •
'Requirements Specific.To: HVAC System 1 : . ' •
1. [503.2.6] Energy recovery ventilation systems. Individual fan systems that have both a design supply air capacity of 5,000 cfm (2.36
m3 /s) or greater and a minimum outside air supply of 70 percent or greater of the design supply air quantity shall have an energy
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recovery system that provides a change in the enthalpy of the outdoor air supply of 50 percent or more of the difference between the
outdoor air and return air at design conditions. Provision shall be made to bypass or control the energy recovery system to'permit
cooling with outdoor air where cooling with .outdoor air is required. Where a single room or space is supplied by multiple units, the
aggregate supply (cfm) of those units shall be used in applying this requirement.
Exception(s):
Where energy recovery systems-are prohibited by the International Mechanical Code.
- Systems serving spaces that are not cooled and are heated to less than 60 °F (15.5 °C).
- Where more than 60 percent of the outdoor heating energy is provided from site - recovered or site solar energy. •
- Type 1 kitchen exhaust hoods. •
- Cooling systems in climates with a 1- percent cooling design wet -bulb temperature less than 64F (18C).
- Systems requiring dehumidification that employ series -style energy recovery coils wrapped around the cooling coil when the
evaporative coil is located upstream of-the exhaust air stream.
- Systems exhausting toxic, flammable, paint exhaust, corrosive fumes, or dust. .
- Laboratory fume hood systems that include at least one of the following features:
1) Variable- air - volume hood exhaust and room supply systems that reduce exhaust and makeup air volume to 50 percent or less
of design values during periods of reduced occupancy or system demand '
or
2) Variable- air - volume hood exhaust and room supply systems that reduce exhaust and makeup air volume and /or incorporate a
heat recovery system to precondition makeup air from laboratory exhaust shall meet the following:
A + B'(E/M) = 50%
Where:
A = Percentage that the exhaust and makeup air flow rates will be reduced from design conditions.
B = Percentage sensible heat recovery effectiveness.
E = Exhaust airflow rate through the heat recovery device at design conditions
M = Makeup air flow rate of the system at design conditions, •
or
• 3) Direct makeup (auxiliary) air supply equal to at least 75 percent of the exhaust rate; heated no warmer than 2 °F (1.1°C) below
room.setpoint, cooled to no cooler than 3 °F (1.7 °C) above room setpoint, no humidification added, and no simultaneous heating and
cooling used for dehumidification control.
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2. [503.3.2] Hydronic system controls. Hydronic systems of at least 300,000 Btu/h (87,930W) design output capacity supplying heated
and chilled.water,to comfort conditioning.systems - shall include controls that meet the requirements of Section 503.4.3.
Generic Requirements: Must be met by all systems to which the requirement is applicable:
1. [503.2.1] Calculation of heating and cooling loads. Design loads shall be determined in accordance with the procedures described in
the ASHRAE/ACCA Standard 183. Heating and cooling loads shall be adjusted to account for load reductions that are achieved when
energy recovery systems are utilized in the HVAC system in accordance with the ASHRAE HVAC Systems and Equipment Handbook. •
Alternatively, design loads shall be determined by an approved equivalent computation procedure.
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2. [503.2.2] Equipment and system sizing. Heating and cooling equipment and systems capacity shall not exceed the loads calculated
in accordance with Section' 503.2.1. 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(s):
- Required standby equipment and systems provided with controls and devices that allow such systems or equipment to operate
automatically only when the primary equipment is not operating.
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- Multiple units of the same equipment type with combined capacities exceeding the design load and provided with controls that have
the capability to sequence the operation of each unit based on load.
3. [503.2.3] HVAC Equipment Performance Requirements. Reported efficiencies must be tested and rated in accordance with the
applicable test procedure. The efficiency shall be verified through certification under an approved certification program or, if no
certification program exists, the equipment efficiency ratings shall be supported by data fumished by the manufacturer. Where multiple
rating conditions or performance requirements are provided, the equipment shall satisfy all stated requirements. Where components,
such as indoor or outdoor coils, from different manufacturers are used, calculations and supporting data shall be furnished by the
designer that demonstrates that the combined efficiency of the specified components meets the requirements herein.
4. [503.2.4.1] Thermostatic Controls. The supply of heating and cooling energy to each zone shall be controlled by individual thermostatic
controls that respond to temperature within the zone.
5. [503.2.4.2] Set point overlap restriction. Where used to control both heating and cooling, zone thermostatic controls shall provide a
temperature range or deadband of at least 5 °F (2.8 °C) within which the supply of heating and cooling energy to the zone is capable of
being shut off or reduced to a minimum.
Exception(s):
- Thermostats requiring manual change over between heating and cooling modes.
6. [503.2.4.3] Optimum Start Controls. Each HVAC system shall have controls that vary the start-up time of the system to just meet the
temperature set point at time of occupancy.
7. [503.2.4.4] Off -hour controls. Each zone shall be provided with thermostatic setback controls that are controlled by either an automatic
time clock or programmable control system. Thermostatic setback controls shall have the capability to set back or temporarily operate
the system to maintain zone temperatures down to 55 °F (13 °C) or up to 85 °F (29 °C). Automatic time clock or programmable controls
shall be capable of starting and stopping the system for seven different daily schedules per week and retaining their programming and
time setting during a loss of power for at least 10 hours. Additionally, the controls shall have a manual override that allows temporary
operation of the system for up to 2 hours; a manually operated timer capable of being adjusted to operate the system for up to 2 hours;
or an occupancy sensor.
Exception(s):
- Zones that will be operated continuously.
- Zones with a full HVAC load demand not exceeding 6,800 Btu/h (2 kW) and having a readily accessible manual shutoff switch.
8. [503.2.4.5] Shutoff damper controls. Both outdoor air supply and exhaust shall be equipped with not less than Class I motorized
dampers with a maximum leakage rate of 4 cfm per square foot (6.8 Us - C m2) at 1.0 inch water gauge (w.g.) (1250 Pa) when tested
in accordance with AMCA 500D, that will automatically shut when the systems or spaces served are not in use.
Exception(s):
- Gravity dampers shall be permitted for outside air intake or exhaust airflows of 300 cfm (0.14 m3 /s) or less.
9. [503.2.4.6] Freeze Protection and Snow melt system controls. Freeze protection systems, such as heat tracing of outdoor piping and
heat exchangers, including self - regulating heat tracing, shall include automatic controls capable of shutting off the systems when
outdoor air temperatures are above 40F or when the conditions of the protected fluid will prevent freezing. Snow- and ice- melting
systems, supplied through energy service to the building, shall include automatic controls capable of shutting off the system when the
pavement temperature is above 50F (10C) and no precipitation is falling and an automatic or manual control that will allow shutoff when
the outdoor temperature is above 40F (4C) so that the potential for snow or ice accumulation is negligible.
10. [503.2.4.8] Separate air distribution systems. Zones with special process temperature requirements and /or humidity requirements
shall be served by separate air distribution systems from those serving zones requiring only comfort conditions; or shall include
supplementary control provisions so that the primary systems may be specifically controlled for comfort purposes only.
Exception(s): -
- Zones requiring only comfort heating or comfort cooling that are served by a system primarily used for process temperature and
humidity control provided that:
1) The total supply air to those comfort zones is no more than 25 percent of the total system supply air,
or
2) The total conditioned floor area of the zones is less than 1,000 square feet (90 m2)
11. [503.2.4.9] Humidity control. If a system is equipped with a means to add or remove moisture to maintain specific humidity levels in a
zone or zones, a humidity control device shall be provided.
12. [503.2.4.9.1] Humidity control. Where a humidity control device exists it shall be set to prevent the use of fossil fuel or electricity to
produce relative humidity in excess of 30 percent. Where a humidity control device is used for dehumidification, it shall be set to
prevent the use of fossil fuel or electricity to reduce relative humidity below 60 percent.
Exception(s):
- Hospitals, process needs, archives, museums, critical equipment, and other non - comfort situations with specific humidity
requirements outside this range.
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13. [503.2.4.9.2] Humidity control. Where a humidity control device exists it shall be set to maintain a deadband of at least 10% relative
humidity where no active humidification or dehumidification takes place.
Exception(s):
- Heating for dehumidification is provided with heat recovery or heat pumping and the mechanical cooling system efficiency is 10
percent higher than required in section 503.2.3, HVAC equipment performance requirements.
14. [503.2.5] Ventilation. Ventilation, either natural or mechanical, shall be provided in accordance with Chapter 4 of the International
Mechanical Code. Where mechanical ventilation is provided, the system shall provide the capability to reduce the outdoor air supply to
the minimum required by Chapter 4 of the International Mechanical Code.
15. [503.2.5.1] Demand controlled ventilation (DCV). DCV is required for spaces larger than 500 ft2 for simple systems and spaces
larger than 150 ft2 for multiple zone systems and with an average occupant load of 25 people or more per 1000 ft2 of floor area (as
established in Table 403.3 of the International Mechanical Code) and served by systems with one or more of the following:
1. An air -side economizer;
2. Automatic modulating control of the outdoor air damper; or
3. A design outdoor airflow greater than 3,000 cfm.
Exception(s):
- Systems with energy recovery complying with Section 503.2.6
- Spaces less than 750 ft2 (69.7 m2) where an occupancy sensor turns the fan off, closes the ventilation damper, or closes the zone
damper when the space is unoccupied.
16. [503.2.5.2] Kitchen hoods. Kitchen makeup air shall be provided as required by the Oregon Mechanical Specialty Code. For each
kitchen with a total exhaust capacity greater than 5,000 cfm (2360 Us), 50 percent of the required makeup air shall be (a) unheated or
heated to no more than 60 °F (15.55 °C); and (b) uncooled or evaporatively cooled. Each kitchen with a total exhaust capacity greater
than 5,000 cfm shall be equipped with a demand ventilation system on at least 75 percent of the exhaust and makeup air. Such
systems shall be equipped with automatic controls that reduce airflow in response to cooking appliance operation.
Exception(s):
- Where hoods are used to exhaust ventilation air that would otherwise be exhausted by other fan systems. Air transferred from
spaces served by other fan systems may not be used if those systems are required to meet either Sections 503.2.5.1 or 503.2.6.
Occupancy schedule of HVAC system supplying transfer air shall be similar to kitchen exhaust hood operating schedule.
- Kitchen exhaust systems that include exhaust air energy recovery complying with section 503.2.6.
17. [503.2.5.3] Enclosed parking garage ventilation controls. In Group S -2, enclosed parking garages used for storing or handling
automobiles operating under their own power having ventilation exhaust rates 30,000 cfm and greater shall employ automatic carbon
monoxide sensing devices. These devices shall modulate the ventilation system to maintain a maximum average concentration of
carbon monoxide of 50 parts per million during any 8 -hour period, with a maximum concentration not greater than 200 parts per million
for a period not exceeding 1 hour. The system shall be capable of producing a ventilation rate of 1.5 cfm per square foot (0.0076 m3 /s -
m2) of floor area. Failure of such devices shall cause the exhaust fans to operate in the ON position.
18. [503.2.7] Duct and plenum insulation and sealing. All supply and return air ducts and plenums shall be insulated with a minimum of R -5
insulation when located in unconditioned spaces and a minimum of R -8 insulation when located outside the building. When located
within a building envelope assembly, the duct or plenum shall be separated from the building exterior or unconditioned or exempt
spaces by a minimum of R -8 insulation. All ducts, air handlers and filter boxes shall be sealed. Joints and seams shall comply with
Section 603.9 of the International Mechanical Code.
Exception(s):
- When located within equipment.
- When the design temperature difference between the interior and exterior of the duct or plenum does not exceed 15 °F (8 °C).
19. [503.2.7.1.1] Low - pressure duct systems. All longitudinal and transverse joints, seams and connections of supply and return ducts
operating at a static pressure less than or equal to 2 inches w.g. (500 Pa) shall be securely fastened and sealed with welds, gaskets,
mastics (adhesives), mastic -plus- embedded -fabric systems or tapes installed in accordance with the manufacturer's installation
instructions. Pressure classifications specific to the duct system shall be clearly indicated on the construction documents in accordance
with the International Mechanical Code. Documentation shall be fumished by the designer demonstrating that representative sections
totaling at least 25 percent of the duct area have been tested and that all tested sections meet the requirements of this section.
Exception(s):
- Continuously welded and locking -type longitudinal joints and seams on ducts operating at static pressures less than 2 inches w.g.
(500 Pa) pressure classification.
20. [503.2.7.1.2] Medium - pressure duct systems. All ducts and plenums designed to operate at a static pressure greater than 2 inches
•
w.g. (500 Pa) but less than 3 inches w.g. (750 Pa) shall be insulated and sealed in accordance with Section 503.2.7. Pressure
classifications specific to the duct system shall be clearly indicated on the construction documents in accordance with the International
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•
•
. •
Mechanical Code. Documentation.stiall.be furnished by the designer demonstrating that representative sections totaling at least 25
percent of the duct area have been tested and that all tested sections meet the requirements of this section. •
• 21. [503.2.7.1.3] High - pressure duct systems. Ducts designed to operate at static pressures in excess of 3 inches w.g. (746 Pa) shall be
insulated and sealed in accordance with Section 503.2.7. In addition, ducts and plenums shall be leak- tested in accordance with the
SMACNA HVAC Air Duct Leakage Test Manual with the rate of air leakage (CL) less than or equal to 6.0 as determined in accordance
with Equation 5 -2. Documentation shall be furnished by the designer demonstrating that representative sections totaling at least 25
• - -- percent -of the duct- area•have•been- tested-and-that all-tested- sections- meet-the this•section. — -- — —
CL = F x P ^(0.65) (Equation 5 -2)
where:
• F = The measured leakage rate in cfm per 100 square feet of duct surface. •
P = The static pressure of the test.
22. [503.2.8] Piping Insulation. All pipes serving space- conditioning systems must be insulated as follows:
Hot water piping for heating systems:
1.5 in. for pipes <= 1.5 in. nominal diameter,
•
2-in. for pipes > 1.5 in. nominal diameter.
Chilled water, refrigerant, and brine piping systems: •
1.5 in. insulation for pipes <= 1.5 in. nominal diameter,
1.5 in. insulation for pipes > 1.5 in. nominal diameter.
Steam piping:
1.5 in. insulation for pipes <= 1.5 in. nominal diameter,
3 in. insulation for pipes > 1.5 in. nominal diameter.
Exception(s): . •
- Pipe insulation is not required for factory- installed piping within HVAC equipment.
- Pipe insulation is not required for piping that conveys fluids having a design operating temperature range between 60 °F and 105 °F.
- Piping within room fan -coil (with AHRI440 rating) and unit ventilators (with AHRI840 rating).
- 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.
•
• 23. [503.2.9.1] Air system balancing. Each supply air outlet and zone terminal device shall be equipped with means for air balancing in
accordance with the requirements of Chapter 6 of the International Mechanical Code (IMC 603.17). Discharge dampers intended to
modulate airflow are prohibited on constant volume fans and variable volume fans with motors 10 horsepower (hp) (7.5 kW) and larger. •
24. [503.2.9.2] Hydronic system balancing. Individual hydronic heating and cooling coils shall be equipped with means for balancing and
pressure test connections.
•
•
25. [503.2.9.3] Manuals. The construction documents shall require that an operating and, maintenance manual be provided to the building
owner by the mechanical contractor. The manual shall include, at least, the, following:
• 1. Equipment capacity (input and output) and required maintenance actions.
2. Equipment operation and maintenance manuals. •
• . 3. HVAC system control maintenance and calibration information, including wiring diagrams, schematics, and control sequence
• descriptions. Desired or field - determined setpoints shall be permanently recorded on control drawings, at control devices or, for digital
control systems, in programming comments.
4. A complete written narrative of how each system is intended to operate.
• 26. [503.2.10] Air System Design and Control. Each HVAC system having a total fan system motor nameplate horsepower (hp) exceeding
5 horsepower (hp) (3.7 kW) shall meet the provisions of Sections 503.2.10.1 through 503.2.10.2.
27. [503.2.10.1] Allowable fan floor horsepower. Each HVAC system at fan system design conditions shall not exceed the allowable fan
system motor nameplate hp (Option 1) or fan system bhp (Option 2) as shown in Table 503.2.10.1(1). This includes supply fans, return/
relief fans, and fan - powered terminal units associated with systems providing heating or cooling capability.
Table 503.2.10.1(1)
Fan Power Limitation LIMIT CONSTANT VOLUME VARIABLE VOLUME
Option 1: Fan system motor nameplate hp Allowable nameplate motor hp hp < CFMS `0.0011 . hp < CFMS *0.0015
Option 2: Fan system bhp Allowable fan system bhp bhp < CFMS *0.00094 + A bhp < CFMS *0.0013 +
A •
where:
• CFMS = The maximum design supply airflow rate to conditioned spaces served by the system in cubic feet per minute.
hp = The maximum combined motor nameplate horsepower.
Bhp = The maximum combined fan brake horsepower. .
•
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A= Sumof[PDxCFMD /4131]. •
• where:
PD = Each applicable pressure drop adjustment from Table 503.2.10.1(2) in. w.c.
Table 503,2.10.1(2) '• •
• Fan Power Limitation Pressure Drop Adjustment Credits: •
. Fully ducted return and /or exhaust air systems = 0.5 in w.c.
Return and /or exhaust airflow control devices = 0.5 in w.c
Exhaust filters, scrubbers or other exhaust treatment = pressure drop of device calculated at fan system design condition. -
Particulate filtration credit: MERV 9 thru 12 =. 0.5 in w.c.
Particulate filtration credit: MERV 13 thru 15 = 0.9 in w.c. .
Particulate filtration credit: MERV 16 and 'greater and electronically .
Enhanced filters = Pressure drop calculated at 2x clean filter pressure drop at fan system design condition.
Carbon and other gas -phase air cleaners = Clean filter pressure drop at fan system design condition.
•
Heat recovery device = Pressure drop of device at fan system design condition.
Evaporative humidifier /cooler in series with another cooling coil = Pressure drop of device at fan system design conditions
Sound attenuation. section =0.15 in w.c.
Exhaust system serving fume hoods = 0.35 in. w.c. • •
Laboratory and vivarium exhaust systems in high -rise buildings = 0.25 in. w:c. /100 ft of vertical duct exceeding 75 feet
Exception(s): •
- Hospital and laboratory systems that utilize flow control devices on exhaust and /or return to maintain space pressure relationships
• necessary for. occupant health and safety or env.irohmental control shall be pemritted.to use variable volume fan power limitation.
- Individual exhaust fans with motor nameplate horsepower of 1 hp (0.7 k1/V) or less.
28. [503.2.10.2] Motor nameplate horsepower. For each fan, the selected fan motor shall be no larger than the first available motor size
greater than the brake horsepower (bhp). The fan brake horsepower (bhp) shall be indicated on the design documents to allow for
compliance verification by the code official. •
Exception(s):
- For fans less than 6 bhp, where the first available motor larger than the brake horsepower has a nameplate rating within 50 percent
of the bhp, selection of the next larger nameplate motor size is allowed.
- For fans 6 bhp and larger, where the first available motor larger than the bhp has a nameplate rating within 30 percent of the bhp,
selection of the next larger nameplate motor size is allowed.
•
29. [503.2.10.3.1] Large Volume Fan Systems. Fan systems over 8,000 (7 m3 /s) cfm without direct expansion cooling coils that serve
single zones are required to reduce airflow based on space thermostat heating and cooling demand. A two -speed motor or variable
frequency drive shall reduce airflow to.a maximum 60 percent of peak airflow or minimum ventilation air requirement as required by
Chapter 4 of.the International Mechanical Code, whichever is greater.
Exception(s): •
- Systems where the function of the supply air is for purposes other than temperature control, such as maintaining specific humidity
levels or supplying an exhaust system
30. [503.2.10.3.2] All air - conditioning equipment and air - handling units with direct expansion cooling and a cooling capacity at ARI.
conditions greater than or equal to 110,000 Btu /h that serve single zones shall have their supply fans controlled by two -speed motors
or variable speed drives. At cooling demands less than or equal to 50 percent, the supply fan controls shall be able to reduce the
airflow to no greater than the larger of the following: .
1. Two- thirds of the full fan speed, or
2. The volume of outdoor air required to meet the ventilation requirements of ANSI /ASHRAE Standard 62.1 -2007.
Exception(s): • .
- Systems where the function of the supply air is for purposes other than temperature control, such as maintaining specific humidity
levels or supplying an exhaust system
31. [503.2.10.4] Series fan - powered terminal unit fan motors. Fan motors for series fan - powered terminal units shall be
• electronically- commutated motors and have a minimum motor efficiency of 70 percent when rated in accordance with NEMA Standard
MG 1 -2006 at full load rating conditions.
• 32. [503.2.11] Heating outside a building. Systems installed to provide heat outside a building shall be radiant systems. Such heating
systems shall be controlled by an occupancy sensing device or a timer switch, so that the system is automatically deenergized when •
no occupants are present. -
•
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