2013 title 24, part 6 residential hvac april 11, 2014 title 24, part 6 residential hvac april 11,...

2013 Title 24, Part 6 Residential HVAC April 11, 2014

Gina Rodda

Gabel Associates, LLC

Course Goal

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Brief overview of MAJOR CHANGES

in 2013 Title 24, Part 6 for Residential

HVAC (new construction, additions

and alterations).

Changes in Scope and Application

4/19/2013 3

Welcome


●When, Where and Why?

●TDV Changes

●New Software and HERS Registration Procedures

HVAC: New Construction

HVAC: Additions and Alterations

HVAC: Forms

Wrap Up

When, Where..

When (current schedule):

Any projects that apply for permit on or after January

1, 2014 will be subject to the 2013 Standards.

Exception: Nonresidential Registry January 1, 2015

Where can you find?

Marked version of the 2013 Standards, ACM, 2nd

draft version of the Residential Manual and

compliance forms.

http://www.energy.ca.gov/title24/2013standards/

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http://www.energy.ca.gov/title24/2013standards/

and Why?

2020

All California new residential

construction zero net energy

Low-income homes energy

efficient

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1.48 1.6

1.9

4.11

4.09

6.23

2008 2013

Average TDV Energy Multipliers

Natural Gas Propane Electricity

TDV Changes

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Source: Ken Nittler, Nov 2011 CABEC conference

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New simulation engine CSE

(California Simulation Engine)

Compliance Manager software from

CEC to provide Standard/Proposed

rules for modeling

All software vendors will use same

plug in to Compliance Manager

software

Creation of CF-1R will require internet

access to CEC’s Compliance

Manager.

HERS registration process will include

uploading the CF-1R from the CEC for

registration and signatures per current

procedures.

Performance (CF-1R-PRF-01)

New Software and HERS Registration Procedures

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This form is an example of CF-1R-PRF-01. Actual form still under construction.

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HERS registration process will include uploading the CF-1R from the CEC for

registration and signatures per current procedures.

Prescriptive New Buildings (CF-1R-NCB-01)

New HERS Registration Procedures

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HERS registration process will include uploading the CF-1R from the CEC for

registration and signatures per current procedures.

CF-1R-PRSC-ALT-02 for CZ 1, 3, 4-7 and 16:

Duct Leakage

Airflow and Fan Watt Draw

CF-1R-PRSC-ALT-03 for CZ 2 and 8-15:

Duct leakage

Airflow and Fan Watt Draw

Refrigerant Charge

Prescriptive HVAC Alterations

New HERS Registration Procedures

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4/19/2013 10

Welcome



●Heating and Cooling Equipment

●IAQ Ventilation

●Ducts

●HERS


HVAC: Forms

Wrap Up

“New” Mandatory New Package “A”

Heating and Cooling Equipment

11 4/19/2013

After January 1, 2015: DX air conditioners

<65,000 Btuh 14 SEER or better;

weatherized central furnaces <225,000

Btuh 81% AFUE; package heat pumps 8.0

HSPF, split heat pumps 8.2 HSPF.

Design Conditions: 68 degree F for heating.

150.0(h)2

Outdoor condensing unit: at least 5’ from

the outlet of any dryer vent. 150.0(h)3

Refrigerant and piping insulation changes.

150.0(h)4, 150.0(j)3B

Systems that utilize forced air ducts for

cooling to meet airflow and fan watt draw

requirements. 150.0(m)13B

Systems that utilize automatic zonal control

must meet airflow and fan watt draw

requirements. 150.0(m)15

Supplemental heating allowed with sizing

and timing controls. 150.1(c)6

Refrigerant charge HERS tested and

verified for CZ 2, 8-15 (similar to 2008),

weigh-in approach for systems not able to

follow 150.1(c)7 added.

Central forced air system fans used in

central fan integrated ventilation system to

be HERS tested and verified for 350 CFM/

ton and 0.58 watts per CFM (similar to

2008). 150.1(c)10

Higher than minimum SEER ratings to be

HERS verified. 150.1(b)4Bi

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“New” Mandatory New Package “A”

IAQ Ventilation

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Continuous operation of central

forced air system not allowed as

IAQ approach

Whole building IAQ ventilation

airflow performance to be HERS

tested and verified. 150.0(o)

Night Ventilation: Whole house

fan CZ 8-14. 150.1(c)12

“New” Mandatory New Pacakge “A”

Ducts

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Minimum R-6 duct insulation. 150.0(m)1

(150.0(m)11ANSI/SMACNA-006-2006

HVAC Duct Construction Standard.

150.0(m)1

HERS duct testing in all CZ. 150.0(m)11

Air filtration devices for mechanical systems

that supply air through 10 sf or more of duct

work. 150.0(m)12

Hole for static pressure probe (HSPP), or

permanently installed static pressure probe

(PSPP) in supply plenum, HERS tested and

verified .150.0(m)13A

Return ducts sized per Table 150.0-C and

150.0-D, or be HERS tested and verified for

350 CFM/ ton and 0.58 watts per CFM.

150.0(c)13B alt.

Duct R-values 150.1(c)9:

CZ 1-10, 12-13 is R-6

CZ 11, 14-16 is R-8

HVAC system bypass ducts not allowed

prescriptively. 150.1(c)13

Ducts not insulated because in conditioned

space to be HERS verified with duct

leakage to outside procedure. 150.1(c)9

“New” Mandatory Package “A”

HERS

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Systems that utilize forced air ducts for

cooling to meet airflow and fan watt draw

requirements. 150.0(m)13B

Systems that utilize automatic zonal control

must meet airflow and fan watt draw

requirements. 150.0(m)15

Whole building IAQ ventilation airflow

performance to be HERS tested and

verified. 150.0(o)

HERS duct testing in all CZ. 150.0(m)11

Hole for static pressure probe (HSPP), or

permanently installed static pressure probe

(PSPP) in supply plenum, HERS tested and

verified .150.0(m)13A

Return ducts sized per Table 150.0-C and

150.0-D, or be HERS tested and verified for

350 CFM/ ton and 0.58 watts per CFM.

150.0(c)13B alt.

Refrigerant charge HERS tested and

verified for CZ 2, 8-15 (similar to 2008),

weigh-in approach for systems not able to

follow 150.1(c)7 added.

Central forced air system fans used in

central fan integrated ventilation system to

be HERS tested and verified for 350 CFM/

ton and 0.58 watts per CFM (similar to

2008). 150.1(c)10

Higher than minimum SEER ratings to be

HERS verified. 150.1(b)4Bi

Ducts not insulated because in conditioned

space to be HERS verified with duct

leakage to outside procedure. 150.1(c)9


4/19/2013 15

Welcome


HVAC: New construction



●IAQ Ventilation

●Ducts

●HERS

HVAC: Forms

Wrap Up

Addition less than 1,000 sf or less are exempt from whole-building airflow requirements, all other applicable requirements still apply

Greater than 1,000 sf, all apply

Ducts extended from existing system that are less than 40 linear feet: R-6 duct insulation.

Over 40 linear feet, new AND existing ducts must meet mandatory and prescriptive requirements.

New equipment (not a repair) must meet all applicable measures as for new construction, including all HERS measures.

Existing and new ducts of new/altered system to be HERS tested and verified.

If existing system extended, equipment need not comply with Part 6. Heating capacity must be adequate to meet CBC Section 1204.1

If refrigerant-containing system components altered, setback thermostat required.


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HVAC Equipment

IAQ Ventilation

Ducts

HERS

HVAC: Alterations Using Performance Method

To take performance credit for improving a feature of existing (pre-

altered) condition, the feature must be verified by a HERS rater before

construction and permit submittal. Otherwise, the appropriate prescriptive

or mandatory efficiency level for that measure is used to set the

“standard” design in the compliance software. 150.2(b)1D

For further details, see the 2013 Residential ACM Reference Manual.

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17 4/19/2013

HVAC: Forms

4/19/2013 18

Welcome


HVAC: New construction


HVAC: Forms


●IAQ Ventilation

●Ducts

●HERS

Wrap Up

HVAC Forms: Certificate of Compliance

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HVAC Forms: CF-2R Certificate of Installation (previously known as CF-6R)

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HVAC Forms: CF-3R Certificate of Verification (previously known as CF-4R)

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Thank you

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We welcome your feedback, and have provided our contact

information for after today’s presentation.

Contact Role Email Phone

Gina Rodda Presenter [email protected] (510) 428-0803

ext 204

Jill Marver PG&E

Course

Manager

[email protected]

(925) 415-6844

mailto:[email protected]

mailto:[email protected]

2013 title 24, part 6 residential hvac april 11, 2014 title 24, part 6 residential hvac april 11,...

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