Proposed Modification to the Florida Building Code

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					Proposed Modification to the Florida Building Code
Modification #:                             Section 553.73, Fla Stat

Name:           Ann Stanton, FL DCA Codes
Address:        2555 Shumard Oak Blvd, Tgallahasse, FL 32399-2100
Phone:          (850) 488-0964
Fax:            (850) 414-8436
Code:           Florida Building Code, Building, Chapter 13
Section #:      13-407.1.ABC.3.2

Text of Modification [additions underlined; deletions stricken]:
13-407.1.ABC.3.2 Mandatory provisions. Equipment shown in Tables 407.1.ABC.3.2A
through 407.1.ABC.3.2D shall have a minimum performance at the specified rating
conditions….cooling category. [no change to first paragraph]

Tables 407.1.ABC.3.2A through 407.1.ABC.3.2D contain the minimum efficiency
requirements for equipment covered by this section of the standard. The tables are
organized to cover the following types of equipment:
       Table 407.1.ABC.3.2A, Air Conditioners and Condensing Units.
       Table 407.1.ABC.3.2B, Heat Pumps
       Table 407.1.ABC.3.2C, Water Chilling Packages
       Table 407.1.ABC.3.2D, Packaged Terminal and Room Air Conditioners
          and Heat Pumps
   Exception: Water-cooled centrifugal water-chilling packages that are not designed for
   operation at ARI 550/590 test conditions (and thus cannot be tested to meet the requirements
   of Table 407.1.ABC.3.2C) of 44oF (7oC) leaving chilled water temperature and 85oF (29oC)
   entering condenser water temperature shall have a minimum full-load COP as shown in
   Tables 407.1.ABC.3.2H, I and J and a minimum (NPLV) rating as shown in Tables
   407.1.ABC.3.2K, L and M. The table values are only applicable over the following full-load
   design ranges:
       Leaving chiller water temperature: 40oF to 48oF (4oC to 9oC)
       Condenser water temperature: 75oF to 85oF (24oC to 29oC)
       Condensing water temperature rise: 5oF to 15oF (-15oC to 9oC)

          Chillers designed to operate outside of these ranges or applications utilizing fluids or
     solutions with secondary coolants (e.g. glycol solutions or brines) with a freeze point of 27 oF
     (-2.8oC) or less for freeze protection are not covered by this standard.

Fiscal Impact Statement [Provide documentation of the costs and benefits of the
proposed modifications to the code for each of the following entities. Cost data
should be accompanied by a list of assumptions and supporting documentation.
Explain expected benefits.]:

A. Impact to local entity relative to enforcement of code:
None. This is a clarification of code. It simply removes the potential for misconception.

B.     Impact to building and property owners relative to cost of compliance with
Official Form 9B-3.047-2004                        946d7fa3-b75d-4c0a-9db6-3e9164edb86c.rtf
None. This is a clarification of code.

C. Impact to industry relative to cost of compliance with code:
None. This is a clarification of code.

Rationale [Provide an explanation of why you would like this Proposed
Modification to the Florida Building Code.]:
This proposed code change constitutes Addendum z to ASHRAE 90.1-2001. The
language is changed to clearly show that applications requiring secondary coolants (e.g.
glycol or brine) for freeze protection are excluded from the standard. This exclusion was
previously implied by the word “Water” in the labels of “Leaving Chiller Water
Temperature, Entering Condenser Water Temperature, and Condensing Water
Temperature Rise, but is now more clearly defined.

Please explain how the proposed modification meets the following requirements:
1. Has a reasonable and substantial connection with the health, safety, and
      welfare of the general public:
This proposal avoids the possible misconception that could lead to incorrect enforcement
of the code.

2.   Strengthens or improves the code, and provides equivalent or better
     products, methods, or systems of construction:
This proposal strengthens the code by clarifying its intent.

3.   Does not discriminate against materials, products, methods, or systems of
     construction of demonstrated capabilities:
No discrimination of products, methods or systems is envisioned.

4. Does not degrade the effectiveness of the code:
No, it just clarifies the intent of the code.

                                   Form No. 2000-01 Effective date: 11/28/00

Section for DCA Only

Committee Action:

Committee Reason:

Commission Action:

Commission Reason:

Official Form 9B-3.047-2004                    946d7fa3-b75d-4c0a-9db6-3e9164edb86c.rtf

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