IECC 2012 Standard 90.1 2010 Lee Brandt, LC, IALD, LEED AP BD+C Principal HLB Lighting Design
Jul 15, 2015
Update on:
Codes in use as of 1/1/2015
Changes from IECC 2009 to 2012 (Commercial)
Changes from Std. 90.1 2007 to 2010 (“Commercial”)
NY State amendments to the base codes
NY City amendments to State items and base codes
2010 ECCCNYS [Energy Conservation Construction Code of New York State]
IECC 2009
Standard 90.1 2007
2011 NYCECC [ New York City Energy Conservation Code] [Local Law 1 2011]
LL48 2010 (occ/vac sensors)
LL86 (2005) (LEED Silver for City funded buildings)
NYS Commercial Energy Code
2014 Supplement to the New York State Energy Conservation
Construction Code
Reference Standards:
IECC 2012 / Standard 90.1 2010 (alternate path)
NYC Energy Conservation Code
Modifications to the State supplement
NYS
http://www.dos.ny.gov/dcea/energycode_code.html
NYC
http://www.nyc.gov/html/dob/html/codes_and_reference_materi
als/nycecc_main.shtml
Changes in IECC 2012 & Standard 90.1 2010
LPD’s decreased – both codes
IECC Space by Space is back
IECC’s Mandatory Additional Efficiency Package Options
15% under Building Area LPD’s
Alterations
IECC = 50% threshold
Standard 90.1 = 10% threshold
NYS Amendments
IECC – improved exterior control requirement language
IECC – improved track and busway language and wattages to
use
IECC – slightly altered language for dwelling units within
commercial buildings
90.1 - Made some Mandatory control and power requirements
Prescriptive
NYC Amendments
90.1 – Dwelling Units within commercial buildings now have to
comply!!!
Reference IECC language
IECC and 90.1 – incorporated LL48 language on occupancy
and vacancy sensors.
NYS - IECC 2012 Prescriptive Efficiency Options
NYS - IECC 2012 Performance Building energy cost < 85% of reference building
NYS – IECC 2012 Environmental Trade Off
Std. 90.1 2010 Prescriptive
Std. 90.1 2010 Performance (2 paths)
Std. 90.1 2010 Environmental Trade Off
New York City
NYS - IECC Performance
Path removed
IECC 2012 – SECTION
Mandatory or Prescriptive
Code Requirement
more
STD. 90.1 - SECTION
Mandatory or Prescriptive
Code Requirement
more
New York State AND/OR New
York City Amendments
In these special boxes
IECC 2012 – C402.3.1
Prescriptive:
30% Max OR
40% Max when
>50% conditioned floor area
in daylight zone
Automatic daylighting controls
installed
Certain VT requirements
STD. 90.1 - 5.5.4…
Prescriptive
40% (5.5.4.2.1) (No change
from 2007)
Limits fenestration on East &
West facing walls (5.5.4.5)
IECC 2012 – C402.3.2
Prescriptive: Directly under roof w/ ceiling
>15’
Spaces > 10,000 sq ft
Certain space types
Daylight zone / area requirements associated with Skylights Multi-level lighting controls
(C405.2.2.3.3)
STD. 90.1 - 5.5.4.2.3
Prescriptive:
Building < 4 stories
Spaces > 5,000 sq ft
Certain space types
Daylight zone / area requirements associated with Skylights
Multi-level lighting controls (9.4.1.5)
IECC 2012
No requirements
STD. 90.1 – 8.4.1
Mandatory:
2% for feeders
3% for branch circuits
New York State & NYC
PRESCRIPTIVE rather than
mandatory
IECC 2012
No requirements
STD. 90.1 – 8.4.2
Mandatory:
50% in offices (private and
open) and computer
classrooms
New York State & NYC
PRESCRIPTIVE rather than
mandatory
IECC 2012 – C405.1
> 75% of permanently installed light fixtures shall use high efficacy lamps
Does not include low voltage lighting!
High Efficacy =
CFL
<T8 linear fluor
>60 lumens / watt for > 40 watt lamp
STD. 90.1 – 9.1
Excepted
New York City
DWELLING UNITS ARE NOT
EXCEPTED!! They do not have
to apply with Lighting Section if
they meet IECC language
IECC 2012 – C101.4.3
Exception for <50%
replacement of luminaires in
a space as long as power is
not increased
Replacement of lamps +
ballasts ok if LPD not
increased
STD. 90.1 – 9.1.2
Exception for <10% of
connected lighting load such
that LPD is not increased
All other alterations must
comply with LPD and auto
shutoff (9.4.1.1)
Including lamps + ballasts
IECC 2012 – C405.2.2.1
Automatic Time Switch
controls shall be installed
Exception for areas with
occupancy sensors.
STD. 90.1 – 9.4.1.1
Automatic Controls to shut
off interior lighting shall be
installed
Time of day
Occupant sensor
Signal from other system
indicating unoccupied space
IECC 2012 – C405.2.1
Manual lighting controls
required in all areas (some
exceptions)
50% reduction in each area
No change from IECC 2009
Important exceptions
STD. 90.1 – 9.4.1.2
Manual lighting controls required in all spaces (some exceptions)
Each area with manual control shall have one control step between 30 and 70% in addition to off.
Can be accomplished with dimming, step ballast, zoning
IECC 2012 – C405.2.2.2 Mandatory – Required in:
Classrooms
Conference / Meeting Rooms
Employee lunch and break rooms
Private offices
Restrooms
Storage Rooms
Janitorial Closets
Spaces< 300 sq. ft
Auto-off within 30 min
Manual or Auto ON Auto ON only if <50% power or OK for 100%
on in corridors, stairwells, restrooms, entrance areas, and lobbies
STD. 90.1 – 9.4.1.2 Mandatory – Required in:
Classrooms / Lecture Halls
Conference / Meeting / Training Rooms
Employee lunch and break rooms
Offices up to 250 sq ft
Restrooms
Storage and Supply rooms (50 – 1000 sq ft)
Copy/Print rooms
Dressing / Locker / Fitting Rooms
Auto-off within 30 min
Manual or Auto ON Auto ON only if <50% power or OK for
100% on in corridors, stairwells, restrooms, entrance areas, and lobbies
New York City amendments
LL48 – next slide
NYC – affects both NYS / IECC and Std. 90.1
Mandatory – Vacancy Sensors – manual on, auto off. (No override that can change them to auto on.) Required in: Classrooms (not shop, lab, or
preschool)
Conference / Meeting Rooms
Employee lunch and break rooms
Private offices <200 sq .ft.
There can be a 30 second grace period to for sensor to turn lights back on automatically if occupancy is detected
Auto-off within 30 min
Mandatory – Occupancy Sensors – auto on,
auto off. Required in:
Restrooms
Storage Rooms
Private offices >200 sq. ft.
Janitorial Closets
Spaces< 300 sq. ft
AUTOMATIC ON SHALL NOT TURN ON
MORE THAN 50% POWER
Full (100%) on allowed in public corridors,
stairways, restrooms, entries and lobbies &
where determined manual on would be safety
issue
IF MANUAL-ON, FIXTURES CAN COME
ON TO 100%
IECC 2012 – C405.2.2.3 Mandatory
Independent control via
Manual control OR
Automatic control with
continuous or stepped
dimming (optional unless
increased WWR C402.3.1)
Daylight control zone <2,500 sq
ft area
STD. 90.1 – 9.4.1.4 Mandatory
Separate control via
Automatic control with
continuous or stepped
dimming (3 steps required)
Primary sidelighted areas >250
sq ft
Toplighted areas > 900 sq ft
New York State & NYC
Changes sidelighting requirements to
PRESCRIPTIVE. (Toplighting remains
mandatory)
STD. 90.1IECC
Daylighting Zone
Depth = 15’
Width = window width +2’
on each side
Or to nearest partition
Primary Daylight Zone
Depth = Window Height
(floor to header)
Width = window width +2’
on each side
Or to nearest partition
STD. 90.1IECC
Daylighting Zone
Area = skylight dimension +
floor to ceiling height
Or nearest partition
Or half way to adjacent
skylight or vertical
fenestration
Toplighting Zone
Skylight area + 0.7 x ceiling
height
Or to nearest obstructing
partition
Or to sidelighted zone
STD. 90.1 - 9.4.1.6IECC - C405.2.3
Mandatory - Same as IECC
2009 – Dedicated control for
Display/Accent, Case, Guest
Rooms, Task, Non-visual and
Demonstration
Mandatory - Same as 90.1
2007 – Dedicated control for
Display/Accent, Case, Guest
Rooms, Task, Non-visual and
Demonstration
New: Stairwells =
automatically reduce lighting
to 50% power within 30 min of
inactivity
IECC 2012 – C405.2.4 Mandatory – controlled via
photosensor and time switch OR
astronomical time switch.
STD. 90.1 – 9.4.1.7 Mandatory – automatic control to
keep lights off when sufficient
daylight available
Façade and landscape lighting
Auto shut-off b/t midnight or business
closing and 6am or business opening
All other exterior lighting including
signage shall be controlled
automatically to reduce connected
load by 30%
From midnight to 6am (or within one
hour of business close / open)
Any period of inactivity > 15 min
New York State and NYC
Use Standard 90.1 2010 language
Std. 90.1 only – 9.4.1.3
Daylight
Transition
Zone
Daylight
Transition Zone20’ Daylight Control Zone
3,600 sq ft max control
zone
Mandatory – Garage must have automatic
shut off controls (9.4.1.1)
Occupancy sensor to decrease power of each luminaire by 30%
<3600 sq ft zone
Daylight transition zone, separate control – auto on at daylight, off at sunset
Daylight responsive lighting zone within 20’ of perimeter wall
Reduced LPD’s from 2009
Space by Space table is
back!
Includes some wattage for
decorative fixtures
No decorative allowance
STD. 90.1 – 9.5 AND 9.6IECC - C405.5.2
Reduced LPD’s from 2007
Added Room Cavity Ratio
allowance for tall and unique
shaped rooms
STD. 90.1 – TABLE 9.6.2IECC – N/A
Additional control methods –
in addition to Mandatory
controls = extra wattage
Specific conditions and
applications
NYS and NYC prescriptive
items on controls may help
here!
Efficacy of luminaire >60
lumens / watt for all fixtures
>100 watts
Unless controlled by motion
sensor
STD. 90.1 – N/AIECC - C405.6.1
New York State & NYC
Requirement is deleted
New table
Lighting Zones
Tradable / Non-tradable
Matches Std. 90.1
STD. 90.1 – 9.4.3IECC - C405.6
Same table as Addendum I
to Std. 90.1 2007
Lighting Zones
Has LZ0
Tradable / Non-tradable
STD. 90.1 – 9.4.2IECC - C405.4
Internally illuminated <5
watts per face
Internally illuminated <5
watts per side
IECC 2012 – C406 Mandatory for New Construction (?)
Additional Efficiency Package
Options! Project must chose 1
Efficient HVAC equipment ($$)
Efficient Lighting System
On-site renewable energy ($$$$$)
Lighting may be the common choice
Building Area Type table with 15%
reduction
STD. 90.1 No requirement
Changes in IECC 2012 & Standard 90.1 2010
LPD’s decreased – both codes
IECC Space by Space is back
IECC’s Additional Efficiency Package Options
15% under Building Area LPD’s
Alterations
IECC = 50% threshold
Standard 90.1 = 10% threshold
NYS Amendments
IECC – improved exterior control requirement language
IECC – improved track and busway language and wattages to
use
IECC – altered language for dwelling units within commercial
buildings
90.1 - Made some Mandatory control and power requirements
Prescriptive
NYC Amendments 90.1 – Dwelling Units within commercial buildings now have to
comply!!!
IECC language
IECC and 90.1 – incorporated LL48 language on occupancy and vacancy sensors.
IECC’s Additional Efficiency Package Options 15% under Building Area LPD’s