december 2014 upc-umc tcc final ballot resultscodes.iapmo.org/docs/the actions from the...

List Home Dates Threads Authors SubjectsSearch Mail

tcc - Groups - December 2014 TCC Final Ballot Resultsuploaded

Message Thread: Previous | Next

Submitter's messageDear Technical Committee Members:

Attached are the Final Ballot Results for the committee actions taken regarding the December 2014 TCC Ballot.

12 Members Eligible to Vote0 Ballot was not received by the closing date of December 23, 2014.(See voting results for details)

There are two criteria necessary to pass the letter ballot for each item as follows:

1. The number of affirmative votes needed for each item to pass is 3/4 affirmative.

2. In all cases, an affirmative vote of at least a simple majority of the total members eligible to vote is required.

All of the committee actions for the Technical Correlating Committee Report achieved the necessary 3/4affirmative votes of returned ballots.

Please contact me with any questions or comments you may have at 909-472-4111 orHugo.Aguilar@xxxxxxxxxx

-- Angela Ohlheiser

Document Name: December 2014 TCC Final Ballot Results

No description provided.Download Latest Revision

Submitter: Angela OhlheiserTechnical Contact: Hugo AguilarGroup: Technical Correlating CommitteeFolder: 2014 TCC BallotsDate submitted: 2014-12-24 11:42:09

By Date: Previous | Next Current Thread By Thread: Previous | Next

To: tcc@xxxxxxxxxxxxxxFrom: Angela Ohlheiser<angela.ohlheiser@xxxxxxxxx>Date: Wed, 24 Dec 2014 11:42:23 -0800 (PST)Send new messageReply to this messageMore about this author

Groups - December 2014 TCC Final Ballot Resul, Angela Ohlheiser (you are here)

Groups - December 2014 TCC Final Ballot Results uploaded http://kavi.iapmo.org/apps/org/workgroup/tcc/email/archives/2014...

1 of 2 1/2/15 4:42 PM

MEMORANDUM

TO: Technical Correlating Committee FROM: Hugo Aguilar, Staff Liaison DATE: December 24, 2014 SUBJECT: December 2014 TCC Final Ballot Results Dear Technical Committee Members: Attached are the Final Ballot Results for the committee actions taken regarding the December 2014 TCC Ballot. 12 Members Eligible to Vote 0 Ballot was not received by the closing date of December 23, 2014. (See voting results for details) There are two criteria necessary to pass the letter ballot for each item as follows: 1. The number of affirmative votes needed for each item to pass is 3/4 affirmative. 2. In all cases, an affirmative vote of at least a simple majority of the total members eligible to vote is

required. All of the committee actions for the Technical Correlating Committee Report achieved the necessary 3/4 affirmative votes of returned ballots. Please contact me with any questions or comments you may have at 909-472-4111 or [email protected]

DECEMBER 2014 TCC FINAL BALLOT RESULTS

TCC Item #001 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #002 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #003 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #004 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #005 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #006 Eligible to Vote: 12 Affirmative: 11 Negative: 1 Not Returned: 0 Percent: 91.67% Affirmative Vote: Achieved 75% affirmative vote passed Negative Comments: Cudahy: Since this section is general, why even try to specify a radius? I don't know that all materials used in hydronics have a minimum of six times the outside diameter of the tube radius for a bend. Some might have less, some might have more, some are rigid and don't bend at all. Leave the new language and follow the directions for the material. TCC Item #007 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #008 Eligible to Vote: 12 Affirmative: 12 Negative: 0 Not Returned: 0 Percent: 100% Affirmative Vote: Achieved 75% affirmative vote passed TCC Item #009 Eligible to Vote: 12 Affirmative: 11 Negative: 1 Not Returned: 0 Percent: 91.67% Affirmative Vote: Achieved 75% affirmative vote passed Negative Comments: Cudahy: Now that other materials besides fuseable HDPE are used in hydronics, other methods of in-slab joining are possible. If a manufacturer has a joining system recommended for use in slab, and some PEX hydronics systems do have stainless and plastic fittings, or special coverings, they should be options. Not all piping can be heat fused. Attached is an example PEX radiant system intended for use in commercial slabs.

1ProPEX® is a registered trademark of Uponor, Inc. ProPEX™ is a trademark of Uponor Ltd. 2Visit listing agency’s website for complete information.

Radiant RolloutTM Mat with Wirsbo hePEXTM Tubing Submittal Information

Revision G: Jan. 7, 2014

Project Information

Job Name:

Location: Part No. Ordered:

Engineer: Date Submitted:

Contractor: Submitted By:

Manufacturer’s Representative: Approved By:

Technical Data

Materials: Crosslinked polyethylene (PEX-a) Engel method

UDEL® polysulfone (PSU) 20% glass-reinforced for

ProPEX® engineered polymer (EP) fittings1

Acetal polymer for support strip bracing; Nylon zip ties;

Brass Schrader® valve

Standard Grade

Hydrostatic Ratings (PPI):

200°F at 80 psi (93°C at 5.51 bar)

180°F at 100 psi (82°C at 6.89 bar)

73.4°F at 160 psi (23°C at 11.03 bar)

Linear Expansion Rate: 1.1"/10°F per 100' (27.94mm/5.56°C per 30.48m)

Product Information and Application Use

The Radiant RolloutTM Mat features ½" or ⅝" Wirsbo hePEXTM tubing that has an oxygen-diffusion barrier that meets German DIN 4726/9. The mat can include a ¾" reverse-return header with ¾" ProPEX EP Fittings that is pressurized to 20 psi to ensure system integrity. The mat can also be designed without a

reverse-return header. Instead it is not pre-pressurized and can connect to a wall manifold such as the TruFLOW™ Classic Manifold.

Description Part Number Loops Roll Height Roll Length Support Strip Bracing Roll Width Roll Weight

½" Wirsbo hePEX

Radiant Rollout Mat

(6" o.c.), 5 loop

M2306060000 5 2' to 4' 40' to 150' 5' wide; place every 7' length;

pre-drilled anchor points; acetal polymer

5' 27.20 to

91.46 lbs.

½" Wirsbo hePEX

Radiant Rollout Mat

(9" o.c.), 3 loop

½" Wirsbo hePEX

Radiant Rollout Mat

(12" o.c.), 3 loop

⅝" Wirsbo hePEX

Radiant Rollout Mat

(6" o.c.), 5 loop

⅝" Wirsbo hePEX

Radiant Rollout Mat

(9" o.c.), 3 loop

⅝" Wirsbo hePEX

Radiant Rollout Mat

(12" o.c.), 3 loop

M2309054000

M2312072000

M2406060000

M2409054000

M2412072000

3

3

5

3

3

2' to 4'

2' to 4'

2' to 4'

2' to 4'

2' to 4'

40' to 150'

40' to 150'

40' to 225'

40' to 225'

40' to 225'

5' wide; place every 7' length;










4.5'

6'

5'

4.5'

6'

18.21 to

59.17 lbs.

18.51 to

59.47 lbs.

36.52 to

187.48 lbs.

23.81 to

118.54 lbs.

24.11 to

118.84 lbs.

Installation

At the jobsite, roll out the mat and, depending on your header/manifold selection, connect to a supply-and-return line using the attached header (optional) or

connect each loop to a wall manifold (optional). Contact your local Uponor representative for more information.

Listings2 Codes Standards cNSFus-rfh; cNSFus-pw; cQAIus; UL; CSA; WH; ETL;

PPI TR-4; ICC-ES; IAPMO; CCMC

ICC; IPC; IMC; IRC; UPC; UMC;

NSPC; HUD; UFGS; NPC of Canada;

NBC of Canada

ANSI/NSF 14; ANSI/NSF 61; ASTM F876; ASTM F877;

ASTM F1960; ASTM F2023; ASTM E84; CAN/ULC S102.2;

ASTM E119/UL 263; CAN/ULC S101; ASTM E814/ULC S115;

CSA B137.5; CSA B214; DIN 4726/9

Related Applications Contact Information

Radiant Heating and Cooling Systems

Snow and Ice Melting Systems

Permafrost Protection Systems

Turf Conditioning Systems

Uponor, Inc.

5925 148th Street West

Apple Valley, MN 55124 USA

Phone: 800.321.4739

Fax: 952.891.2008

www.uponorpro.com

Uponor Ltd.

2000 Argentia Road, Plaza 1, Suite 200

Mississauga, ON L5N 1W1 CANADA

Phone: 888.994.7726

Fax: 800.638.9517

www.uponorpro.com

Attachment for TCC Item #009

1

IAPMO Technical Correlation Committee (TCC) Report

PART I – CORRELATION ITEMS BETWEEN THE 2015 USPSHTC,

UPC, UMC, and USEHC

TCC ITEM 1

2015 UNIFORM SWIMMING POOL, SPA & HOT TUB CODE 2015 UNIFORM PLUMBING CODE

ITEM # 010 COMMENTS ITEM # 049 COMMENTS

RECOMMENDATION:

205.0 Coastal High Hazard Areas. An area within the flood hazard

area that is subject to high velocity wave action, and shown on a

Flood Insurance Rate Map or other flood hazard map as Zone V,

VO, VE or V1-30.

205.0 Coastal High Hazard Areas. An area within the

flood hazard area that is subject to high velocity wave

action, and shown on a Flood Insurance Rate Map or

other flood hazard map as Zone V, VO, VE or V1-30.

2015 UNIFORM MECHANICAL CODE 2015 UNIFORM SOLAR ENERGY & HYDRONICS CODE


RECOMMENDATION:

205.0 Coastal High Hazard Areas. An area within the flood hazard

area that is subject to high-velocity wave action, and shown on a

Flood Insurance Rate Map or other flood hazard map as Zone V,

VO, VE, or V1-30.

205.0 Coastal High Hazard Areas. An area within the flood

hazard area that is subject to high velocity wave action,

and shown on a Flood Insurance Rate Map or other flood

hazard map as Zone V, VO, VE or V1-30.

x Accept recommendation as submitted. Reject the recommendation.

Substantiation:

The revision to the definition for “Coastal High Hazard Areas” in the USPSHTC will correlate with the actions taken by the UPC TC to “accept the public comment as submitted” Item # 049, the UMC TC to “accept the public comment as submitted” Item # 046, and the USEHC TC to “accept the public as amended” Item # 009 in regards to revising the definition for “flood hazard areas subject to high velocity wave action.”

The substantiation provided for proposal Item # 049 of the UPC is as follows: “This is a terminology change on-ly, no change in technical requirements. FEMA has been using the term “coastal high hazard area” instead of “flood hazard areas subject to high velocity wave action” in its publications on codes and guidance for implementing the re-quirements of the Nation Flood Insurance Program. Standards referenced by building codes (ASCE 7 Minimum De-sign Loads for Buildings and Other Structures and ASCE 24 Flood Resistant Design and Construction) use the term “coastal high hazard area.”

The substantiation provided for proposal Item # 046 of the UMC is as follows: “This is a terminology change

only, no change in technical requirements. FEMA has been using the term “coastal high hazard area” instead of “flood

2



hazard areas subject to high velocity wave action” in its publications on codes and guidance for implementing the re-quirements of the National Flood Insurance Program. Standards referenced by building codes (ASCE 7 Minimum De-sign Loads for Buildings and Other Structures and ASCE 24 Flood Resistant Design and Construction) use the term “coastal high hazard area.” The substantiation provided for proposal Item # 009 of the USEHC is as follows: “Section 302.3, Section 302.3.1, and the definition for “flood hazard area subject to high velocity wave action” are being revised to correlate with the UMC and the UPC for similar provisions.”

The Committee Statement provided for rejecting the public comment for Item # 010 of the USPSHTC is as fol-lows: “The TC indicated, that according to CFR Regulations Title 44 (Section 9.4), zone “VO” is not identified in the definition for “coastal high hazard areas.” Therefore, zone “VO” is being removed from the definition for “coastal high hazard areas” in the USPSHTC.”

TCC ITEM 2


ITEM # 011 COMMENTS ITEM # COMMENTS

RECOMMENDATION:

302.1 Minimum Standards. Pipe, pipe fittings, traps, fixtures,

material, and devices used in a swimming pool, spa, hot tub, or

plumbing system shall be listed and or labeled (third-party certi-

fied) by a listing agency (accredited conformity assessment body)

and shall comply with the approved applicable recognized stand-

ards referenced in this code, and shall be free from defects. Plastic

pipe and the fittings used for plastic pipe, other than for gas, shall

meet the requirements of NSF 14. Unless otherwise provided for

in this code, materials, fixtures, or devices used or entering into the

construction of plumbing systems, or parts thereof, shall be sub-

mitted to the Authority Having Jurisdiction for approval.

301.2 Minimum Standards. Pipe, pipe fittings, traps,

fixtures, material, and devices used in a plumbing system

shall be listed or labeled (third-party certified) by a list-

ing agency (accredited conformity assessment body) and

shall comply with the approved applicable recognized

standards referenced in this code, and shall be free from

defects. Unless otherwise provided for in this code, mate-

rials, fixtures, or devices used or entering into the con-

struction of plumbing systems, or parts thereof, shall be

submitted to the Authority Having Jurisdiction for ap-

proval.


ITEM # COMMENTS ITEM # 008 COMMENTS

RECOMMENDATION:

302.1 Minimum Standards. Listed pipe, pipe fittings, appli-

ances, appurtenances, equipment, materials, and devices used in a

mechanical system shall be listed or labeled (third party certified)

by a listing agency (accredited conformity assessment body) and

shall comply with the approved applicable recognized standards

referenced in this code, and shall be free from defects. Unless oth-

erwise provided for in this code, materials, appurtenances, or de-

vices used or entering into the construction of mechanical systems,

or parts thereof, shall be submitted to the Authority Having Juris-

diction for approval.

302.1 Minimum Standards. Pipe, pipe fittings, traps,

equipment, material, and devices used in a solar energy

system shall be listed or labeled (third party certified) by

a listing agency (accredited conformity assessment body)

and shall comply with the approved applicable recog-

nized standards referenced in this code, and shall be free

from defects. Unless otherwise provided for in this code,

materials, appurtenances, or devices used or entering into

the construction of solar energy systems, or parts thereof,

shall be submitted to the Authority Having Jurisdiction

for approval.

3


ITEM # COMMENTS ITEM # 008 COMMENTS


Substantiation:

Section 302.1 of the USPSHTC is being revised to correlate with the 2015 UPC, 2015 UMC, and 2015 USEHC in re-gards to “listed or labeled.”

The substantiation for the public comment for Item # 011 of the USPSHTC is as follows: “The proposed lan-guage (Section 302.4.1) correlates with the 2015 UPC. Section 302.1 should be revised to correlate with the other codes published by IAPMO (UPC, UMC, and USEHC). The 2015 UPC, 2015 UMC and 2015 USEHC defines “Listed” (third-party certified) as equipment or materials included in a list published by a listing agency that maintains periodic inspection on current production of listed equipment or materials and whose listing states either that the equipment or material complies with approved standards or has been tested and found suitable for use in a specified manner. La-beled is defined as equipment or materials bearing a label of a listing agency (see Listed third-party certified). Based on the definition of listed (third-party certified), a product whose listing states that the product complies with approved standards or has been tested and found suitable for use in a specified manner. Each product that has been listed will have a label of a listing agency which maintains periodic inspection of production of labeled equipment or materials, and where the manufacturer indicates compliance with appropriate standards or performance in a specified manner (see definition of listing agency). Therefore, in accordance with the definitions for listed, listing agency and labeled, a product may be listed or labeled but not required to be both as the definition for labeled refers the user back to the list-ing agency (see Listed third-party certified) which is defined as an agency accredited by an independent and authorita-tive conformity assessment body to operate a material and product listing and labeling (certification) system and that is accepted by the Authority Having Jurisdiction, which is in the business of listing or labeling. The system includes initial and ongoing product testing, a periodic inspection on current production of listed (certified) products, and makes avail-able a published report of such listing in which specific information is included that the material or product is in accord-ance with applicable standards and found safe for use in a specific manner.”

The Committee Statement provided for rejecting the public comment for Item # 011 of the USPSHTC is as fol-lows: “A listing does not require labeling but labeling requires a listing. A product that is not labeled is not required to comply with the listing requirements. The Committee wants to ensure that the plumbing fixtures addressed in Chapter 4 are listed and labeled.”

4

PART II – CORRELATION ITEMS BETWEEN THE 2015 UPC and UMC

TCC ITEM 3

2015 UNIFORM PLUMBING CODE 2015 UNIFORM MECHANICAL CODE

ITEM # COMMENTS ITEM # 341 (PC 2) COMMENTS

RECOMMENDATION:

1213.3 Test Pressure. This inspection shall include an air,

CO2, or nitrogen pressure test, at which time the gas piping shall

stand a pressure of not less than 10 psi (69 kPa) gauge pressure.

Test pressures shall be held for a length of time satisfactory to the

Authority Having Jurisdiction but in no case less than 15 minutes

with no perceptible drop in pressure. For welded piping, and for

piping carrying gas at pressures in excess of 14 inches water col-

umn pressure (3.5 kPa), the test pressure shall be not less than 60

psi (414 kPa) and shall be continued for a length of time satisfacto-

ry to the Authority Having Jurisdiction, but in no case for less than

30 minutes. For CSST carrying gas at pressures in excess of 14

inches water column (3.5 kPa) pressure, the test pressure shall be

30 psi (207 kPa) for 30 minutes. These tests shall be made using

air, CO2, or nitrogen pressure and shall be made in the presence of

the Authority Having Jurisdiction. Necessary apparatus for con-

ducting tests shall be furnished by the permit holder. Test gauges

used in conducting tests shall be in accordance with Section 318.0.

1316.9 Test Pressure. This inspection shall include

an air, CO2, or nitrogen pressure test, at which time the

gas piping shall stand a pressure of not less than 10 psi

(69 kPa) gauge pressure. Test pressures shall be held for

a length of time satisfactory to the Authority Having Ju-

risdiction but in no case less than 15 minutes with no

perceptible drop in pressure. For welded piping, and for

piping carrying gas at pressures in excess of 14 inches

water column (3.5 kPa) pressure, the test pressure shall

be not less than 60 psi (414 kPa) and shall be continued

for a length of time satisfactory to the Authority Having

Jurisdiction, but in no case for less than 30 minutes. For

CSST carrying gas at pressures in excess of 14 inches

water column (3.5 kPa) pressure, the test pressure shall

be 30 psi (207 kPa) for 30 minutes. These tests shall be

made using air, CO2, or nitrogen pressure and shall be

made in the presence of the Authority Having Jurisdic-

tion. Necessary apparatus for conducting tests shall be

furnished by the permit holder. Test gauges used in con-

ducting tests shall be in accordance with Section

1303.3.3.1 through Section 1303.3.3.4.


Substantiation:

The TCC believes that the text “shall be made using air, CO2, or nitrogen pressure and” in Section 1213.3 of the UPC should not be deleted as it is required for enforcement purposes. Therefore, Section 1316.9 of the UMC should be re-vised to include the text “shall be made using air, CO2, or nitrogen pressure and” to correlate with the UPC.

The revision to Section 1213.3 of the UPC will correlate with the action taken by the UMC TC to “accept an identifiable part” Item # 341 (Public Comment 2) in regards for the test pressure for CSST carrying gas at pressures in excess of 14 inches in water column. Furthermore, Section 1316.9 of the UMC is being revised to correlate with language found in the Section 1213.3 of the UPC in regards to the test gauges required to conduct tests.

Note: Item # 341 (PC 2) of the UMC was rejected as it failed to achieved the necessary 2/3 affirmative votes during ballots. However, the submitter made a motion during the Assembly Technical meeting in Minneapolis to “accept an identifiable part” which was passed by membership and the UMC TC return ballots.

The substantiation provided for Item # 341 (Public Comment 2) is as follows: “The 2012 UMC includes CSST as

5

2015 UNIFORM PLUMBING CODE 2015 UNIFORM MECHANICAL CODE

ITEM # COMMENTS ITEM # 341 (PC 2) COMMENTS

an acceptable gas piping material as stated in Section 1308.5.3.4, and in accordance with the CSA LC-1 Standard. CSA and IAPMO R&T certify CSST products based on this standard. The CSA LC-1 Standard limits the design pres-sure on CSST to 25 psi (performance requirements within the standard limit the test pressure to 37.5 psi). Therefore, requiring a pressure test at 60 psi would clearly violate the listing standard and the IAPMO certification, and in some cases can result in permanent deformation of the CSST. The use of 30 psi is considered a safe test pressure for CSST systems. Independent testing performed by Foster-Miller (Waltham, MA) has demonstrated the ability to detect any perforation/leak of the CSST wall (including a leak beneath the jacket) at test pressures between 3 psi and 10 psi.”

PART III – CORRELATION ITEMS BETWEEN THE 2015 USPSHTC

and UPC

TCC ITEM 4


ITEM # 054 COMMENTS ITEM # COMMENTS

RECOMMENDATION:

505.1 Water Supply Inlets. Water supply inlets to swim-

ming pools, spas, or hot tubs shall be protected by one of the

following means:

(1) An approved air gap.

(2) A vacuum breaker installed on the discharge side of the last

valve with the critical level not less than 6 inches (152 mm) or

in accordance with its listing.

(3) A backflow preventer suitable for the degree of hazard, and

installed in accordance with the manufacturer’s installation in-

structions and the plumbing code.

603.5.5 Water Supply Inlets. Water supply inlets to

tanks, vats, sumps, swimming pools, and other receptors

shall be protected by one of the following means:

(1) An approved air gap.

(2) A listed vacuum breaker installed on the discharge side

of the last valve with the critical level not less than 6 inches

(152 mm) or in accordance with its listing.

(3) A backflow preventer suitable for the contamination

or pollution degree of hazard, installed in accordance with

the requirements for that type of device or assembly as set

forth in this chapter.


Substantiation:

The revision to Section 603.5.5 of the UPC will correlate with that action taken by the USPSHTC TC to “accept the pub-lic comment as submitted” Item # 054 in regards to the degree of hazard for the protection of water supply.

The substation provided for accepting the public comment for Item # 054 of the USPSHTC is as follows: “The degree of hazard is the key factor in the determination of the type of backflow prevention device for any given installa-tion. Proposed wording clarifies the intent of this section.”

6

TCC ITEM 5

2015 UNIFORM SWIMMING POOL, SPA & HOT TUB CODE 2015 UNIFORM PLUMING CODE


RECOMMENDATION:

413.0 Drinking Fountains. 413.1 General. Drinking fountains shall be self-closing and

comply with ASME A112.19.1/CSA B45.2, ASME

A112.19.2/CSA B45.1, or ASME A112.19.3/CSA B45.4, and NSF

61. Permanently installed electric water coolers shall also comply

with UL 399. comply with all of the following:

(1) Be self-closing

(2) Comply with NSF 61

(3) Comply with ASME A112.19.1/CSA B45.2, ASME

A112.19.2/CSA B45.1, or ASME A112.19.3/CSA B45.4.

415.0 Drinking Fountains. 415.1 Application. Drinking fountains shall be self-

closing and comply with ASME A112.19.1/CSA B45.2,

ASME A112.19.2/CSA B45.1, or ASME 112.19.3/CSA

B45.4, and NSF 61. Permanently installed electric water

coolers shall also comply with UL 399.


Substantiation:

The revision to Section 413.1 of the USPSHTC will correlate with the action taken by the UPC TC to “accept the public comment as amended” Item # 123 in regards to acceptable standards for drinking fountains.

The substation provided for proposal Item # 123 of the UPC is as follows: “This change adds the appropriate standards for drinking fountains and water coolers. This change is consistent with the recommendations from the Standards Task Group to reference the appropriate standards in the chapters. Such a reference is necessary for the standards to be enforceable.” The Committee Statement provided for accepting the public comment as amended Item # 123 of the UPC is as follows: “The proposed modification will provide clarity in regards to the installation of permanent installed electric wa-ter coolers.” The Committee Statement provided for accepting the public comment as amended Item # 044 of the USPSHTC is as follows: “The public comment was amended to clarify that all drinking fountains must comply with all three items (self-closing, NSF 61, and one of the ASME standards).”

7

PART IV – CORRELATION ITEMS BETWEEN THE 2015 USEHC and UMC

TCC ITEM 6

2015 UNIFORM SOLAR ENERGY & HYDRONICS CODE 2015 UNIFORM MECHANICAL CODE

ITEM # 043 (PC1) COMMENTS ITEM # 315 (PC 2) COMMENTS

RECOMMENDATION:

408.1 General. Joints and connections shall be of an approved

type. Joints shall be gas and watertight and designed for the pres-

sure of the hydronic system. Changes in direction shall be made

by the use of fittings or with pipe bends having a radius of not less

than six times the outside diameter of the tubing in accordance

with the manufacturer’s installation instructions. Joints between

pipe and fittings shall be installed in accordance with the manufac-

turer’s installation instructions.

1211.1 General. Joints and connections shall be of an

approved type. Joints shall be gas and watertight and

designed for the pressure of the hydronic system. Chang-

es in direction shall be made by the use of fittings or with

pipe bends having a radius of not less than six times the

outside diameter of the tubing. Joints between pipe and

fittings shall be installed in accordance with the manufac-

turer’s installation instructions.


Substantiation:

Section 408.1 of the USEHC is being revised to correlate with the action taken on Item # 315 (Public Comment 2) of the UMC in regards to the change in direction of tubing for hydronic systems.

Note: The current language in Section 408.1 of the USEHC was proposed by the TCC to correlate with Section 1211.1 of the 2015 UMC. However, Item # 315 (PC 2), Section 1211.1 of the 2015 UMC was further revised by the Assembly and passed by the UMC Technical Committee.

The Substantiation provided by the TCC for Item # 043 (Public Comment 1) is as follows: “The revisions to Sec-tion 408.1 of the USEHC will correlate with the action taken by the UMC TC to “accept the public comment as amend-ed” Item # 315 (Public Comment 2).”

The Committee Statement provided for accepting the public comment as amended Item # 315 (Public Comment 2) of the UMC is as follows: “Section 1211.1 was modified to provide clarity to the end user that the manufacturer’s installation instructions shall be used for the joining and connections using pipe bends.”

8

TCC ITEM 7


ITEM # 050 (PC 2) COMMENTS ITEM # 322 COMMENTS

RECOMMENDATION:

413.4 Dehumidification. A chilled ceiling or chilled floor pan-

els used for space cooling shall be installed in a humidity-

controlled environment. An air handling device that removes hu-

midity shall be incorporated into the system to keep the relative

humidity below 70 percent the relative humidity associated with

the panel dew point temperature. A humidity sensor shall be in-

stalled within the space to turn off the panels where the surface

approaches the dew point.

1217.4 Dehumidification. A chilled ceiling or chilled

floor panels used for space cooling shall be installed in a

humidity-controlled environment. An air handling device

that removes humidity shall be incorporated into the sys-

tem to keep the relative humidity below 70 percent. A

humidity sensor shall be installed within the space to turn

off the panels where the surface approaches the dew

point.


Substantiation:

Section 413.4 of the USEHC is being revised to correlate with the action taken on Item # 322 of the 2015 Uniform Me-chanical Code in regards to the required relative humidity for a chilled ceiling or chilled floor panels used for space cool-ing.

The substantiation provided for proposal Item # 322 of the UMC is as follows: “The temperature of the water flow-ing through the tube is based on the amount of material obstructing the movement of heat from the tube to the space being heated. The type of flooring used, or extra floor material that the heat must pass through, will require higher water temperatures to motivate the flow of heat into the space.

Tube placement is determined by the spacing, flow rate, friction loss, and pump capability identified in the design. The intent is to ensure excessively long tubing lengths are not used in panel systems. Identification and labeling is an important part of radiant panel tube heating in order to provide proper system balancing. Some differences between heating and cooling systems are the necessity of constant supply water temperature for humidity control; constant circulation rates because of chiller low temperature and freeze point requirements; relative small water temperature ranges because of the series of temperature differentials required between the water freeze point and dehumidification. Whether a chilled ceiling or chilled floor is used for space cooling, both systems need to be in a humidity-controlled environment. Therefore, some type of air-handling device that removes humidity must also be incorporated into the system to keep the relative humidity below 70 percent.”

The substantiation provided for Item # 050 (Public Comment 2) of the USEHC is as follows: “Specifying 70 per-cent humidity is too restrictive and may not be appropriate for all climate and installations.”

The Committee Statement provided for accepting the public comment as amended Item # 050 (Public Comment 2) of the USEHC is as follows: “The proposed modification will further clarify the intent of the section.”

9

TCC ITEM 8


ITEM # 050 (PC 3) COMMENTS ITEM # 322, ITEM # 326 COMMENTS

RECOMMENDATION:

413.6 Poured Floor Structural Concrete Slab Systems (Thermal Mass). Where tubing is embedded in a structural con-

crete slab, such tubes shall not be larger in outside dimension than

one-third of the overall thickness of the slab and shall be spaced

not less than three diameters on center. The top of the tubing shall

be embedded in the slab not less than 2 inches (51 mm) below the

surface.

415.3.2 Poured Structural Concrete Slab Systems (Thermal Mass). Where tubes are embedded in a structural con-

crete slab, such tubes shall not be larger in outside dimension than

one-third of the overall thickness of the slab and shall be spaced

not less than three diameters on center. The top of the tubing shall

be embedded in the slab not less than 2 inches (51 mm) below the

surface.

1217.6 Poured Floor Systems (Thermal Mass). Where tubing is embedded in a concrete slab such tubes

shall not be larger in outside dimension than one-third of

the overall thickness of the slab and shall be spaced not

less than three diameters on center. The top of the tubing

shall be embedded in the slab not less than 2 inches (51

mm) below the surface.

1220.3.2 Poured Concrete Slab Systems (Ther-mal Mass). Where tubes are embedded in a concrete

slab, such tubes shall not be larger in outside dimension

than one-third of the overall thickness of the slab and

shall be spaced not less than three diameters on center.

The top of the tubing shall be embedded in the slab not

less than 2 inches (51 mm) below the surface.


Substantiation:

Section 413.6 and Section 415.3.2 of the USEHC are being revised to correlate with the actions taken on Item # 322 and Item # 326 of the 2015 UMC in regards to piping and tubing embedded in concrete.

The substantiation provided for proposal Item # 322 of the UMC is as follows: “The temperature of the water flow-ing through the tube is based on the amount of material obstructing the movement of heat from the tube to the space being heated. The type of flooring used, or extra floor material that the heat must pass through, will require higher water temperatures to motivate the flow of heat into the space. Tube placement is determined by the spacing, flow rate, friction loss, and pump capability identified in the design. The intent is to ensure excessively long tubing lengths are not used in panel systems. Identification and labeling is an important part of radiant panel tube heating in order to provide proper system balancing. Some differences between heating and cooling systems are the necessity of constant supply water temperature for humidity control; constant circulation rates because of chiller low temperature and freeze point requirements; relative small water temperature ranges because of the series of temperature differentials required between the water freeze point and dehumidification. Whether a chilled ceiling or chilled floor is used for space cooling, both systems need to be in a humidity-controlled environment. Therefore, some type of air-handling device that removes humidity must also be incorporated into the system to keep the relative humidity below 70 percent.

Good design practices consider the effects of tube placement. Where tubes are placed closer together the result is a lower water temperature. Bare concrete and tile floors may suffer from “striping” when tube centers are too far apart. The results of striping (warm and cool bands) can be felt on the floor surface by the occupants and should be avoided. Manufacturers should be consulted for actual “R” values and maximum temperatures for their products. Tube location near the concrete floor surface is preferred for very thick slabs, minimum of 2 inches of concrete cover to prevent crack-ing. R-value is a unit of measure of thermal resistance and the higher the value, the better the heat-insulating capabili-ties of the material. For example, an 8” lightweight concrete block has an R-value of 2 and a ½ of an inch of plywood has an R-value of .63. The concrete block has far better heat-insulating properties than the plywood. This unit is used to

10

find the ‘heat-loss calculation’ for a structure so that preparations can be made to properly heat the structure. Radiant heating systems need low R-values for carpet pads to allow the heat to pass through it and high R-values are encour-

aged everywhere else.” The substantiation provided for proposal Item # 326 of the UMC is as follows: “Auxiliary systems need to be ad-dressed as additional loads are placed on the system along with chemical additives, corrosive fluids, or both. These recommended requirements address the design, installation and operation of snow and ice melting systems. The ex-pected output should be based on the rate of snowfall, air dry-bulb temperature, humidity, wind speed, and dimension and design of controlled surfaces. The pipe spacing, pipe depth, and slab insulation can all have a significant effect on the heating capacity required to achieve a certain snow-melting performance. As can be seen, either increasing the pipe spacing or eliminating the bottom-side insulation degrades the performance of the system. Increasing the pipe spacing makes it more difficult to uniformly heat the top surface of the slab. However, increasing the pipe spacing re-quires higher fluid temperatures, some of which are infeasible. Preheating the slab with full heating capacity before snowfall can significantly improve the snow melting performance; however, it may result in excessively high fluid tem-peratures in mild weather conditions. These high fluid temperatures may not be achievable with typical system design constraints.” The substantiation provided for Item # 050 (Public Comment 3) of the USEHC is as follows: “The requirements for embedded tubing to be not less than 2 inches (51mm) below the surface does not take into account thin-slab/over-pour systems. We suggest clarifying that these requirements are limited to slab-on-grade systems (typically 4 to 6 inch-es thick) and do not apply to thin-slab systems (typically 1.5 to 2 inches thick).”

The Committee Statement provided for accepting the public comment as amended Item # 050 (Public Comment 3) of the USEHC is as follows: “The proposed modification will clarify the intent of the section as the slab may not necessarily be on-grade.”

TCC ITEM 9



RECOMMENDATION:

416.2.3 Plastics. Plastic pipe and tubing shall be installed in

continuous lengths or shall be joined by heat fusion method, sol-

vent cemented, or other approved permanent-type mechanical fit-

tings in accordance with the manufacturer’s installation instruc-

tions.

1221.2.3 Plastics. Plastic pipe and tubing shall be

installed in continuous lengths or shall be joined by heat

fusion method.


Substantiation:

Section 416.2.3 of the USEHC is being revised to correlate with the action taken on Item # 327 of the 2015 UMC in regards to plastics embedded in concrete.

The substantiation provided for Item # 327 of the UMC is as follows: “Auxiliary systems need to be addressed as additional loads are placed on the system along with chemical additives, corrosive fluids, or both. These recommend-ed requirements address the design, installation and operation of snow and ice melting systems. The expected output should be based on the rate of snowfall, air dry-bulb temperature, humidity, wind speed, and dimension and design of controlled surfaces. The pipe spacing, pipe depth, and slab insulation can all have a significant effect on the heating capacity required to achieve a certain snow-melting performance. As can be seen, either increasing the pipe spacing

11



or eliminating the bottom-side insulation degrades the performance of the system. Increasing the pipe spacing makes it more difficult to uniformly heat the top surface of the slab. However, increasing the pipe spacing requires higher fluid temperatures, some of which are infeasible. Preheating the slab with full heating capacity before snowfall can signifi-cantly improve the snow melting performance; however, it may result in excessively high fluid temperatures in mild weather conditions. These high fluid temperatures may not be achievable with typical system design constraints.” The substantiation provided for Item # 053 (Public Comment 3) of the USEHC is as follows: “The proposed modification will provide clarity in accordance with the Technical Committee comments made in the ROP. Solvent, welding and mechanical fittings can be used, and are used for pressure systems, under slabs and underground.”

The Committee Statement provided for accepting the public comment as amended Item # 053 (Public Com-ment 3) of the USEHC is as follows: “The term “welding” is being revised to “cemented” as the term solvent welding is not used in ASTM standards.”

december 2014 upc-umc tcc final ballot resultscodes.iapmo.org/docs/the actions from the...

Documents