MECHANICAL – with Votes 2016-04-13

Local Technical Amendments

to the

2014 5^th Edition Florida Building Code

JURISDICTION

DOCUMENT with TECHNICAL AMENDMENT

TEXT OF TECHNICAL AMENDMENT

TAC REVEW

Broward County

Florida Building Code, Mechanical Ch. 3 – General Regulations

Florida Building Code – Mechanical, 5th Edition (2014)

Amendment to Section [M] 307.2.1 307.2.1 Condensate drainage collection, use or disposal. Condensate from all cooling coils and evaporators of equipment served by an onsite cooling tower in a building or structure wherein the aggregate cooling capacity of the equipment exceeds 65,000 Btu/hr shall be collected and conveyed from the drain pan outlet and discharged to the cooling tower. Where an on-site cooling tower is not installed the condensate from all cooling coils and evaporators shall be conveyed from the drain pan outlet to an approved place of disposal. Such piping shall maintain a minimum horizontal slope in the direction of discharge of not less than one-eighth unit vertical in 12 units horizontal (1-percent slope). Condensate shall not discharge into a street, alley or other areas so as to cause nuisance

Exceptions:

1. Condensate from cooling coils and evaporators is not required to be collected and conveyed to an on-site cooling tower; provided 1.1 through 1.3 are met:

1.1 The equipment comprises 10% or less of the total capacity of the cooling tower system

1.2 The equipment is located in an isolated or remote area

1.3 The size of the equipment is 65,000 Btu/hr or less

2. In existing buildings condensate may be collected and conveyed to a cooling tower or discharged to an approved place of disposal.

Mechanical TAC Vote:

(2^nd – Calleja for negative roll call –

1 Yes – 6 No

NAR – not acceptable for state-wide use.

Broward County

Florida Building Code, Mechanical Ch. 9 – Specific Appliances

Florida Building Code – Mechanical, 5th Edition (2014)

Amendment to Section 908

908.5.1 New cooling towers, including cooling tower replacements shall be operated with conductivity controllers, as well as make-up and blowdown (bleed off) meters and shall achieve a minimum of 8 cycles of concentration.

908.5.2 The quality of cooling tower water shall comply with the equipment manufacturer’s guidelines.

908.5.3 Cooling towers shall be equipped with efficient drift eliminators that achieve drift reduction to a maximum of 0.002% of the recirculated water volume for counterflow towers and 0.005% of the recirculated water flow for cross-flow towers.

908.5.4 An affidavit of compliance demonstrating compliance with section

908.5 Florida Building Code shall be submitted by the property manager/owner to the local water provider every 12 months following system installation. The affidavit shall be signed by the service provider and include all dates of service within the reporting period and verified system operation at a minimum of 8 cycles of concentration.

Exception: Cooling water tower systems utilizing reclaimed water for makeup water are exempt from the provisions of section 908.5.1 thru 908.5.4 Florida Building Code-Mechanical.

Mechanical TAC Vote:

(2^nd – Crum for negative roll call –

1 Yes – 6 No

NAR – not needed for state-wide use.

Pinellas County Construction Licensing Board

1509.6.5 Mechanical Units.

Roof mounted mechanical units shall be mounted on curbs raised a minimum of 8 inches (203

mm) above the roof surface, or where roofing materials extend beneath the unit, on raised

equipment supports providing a minimum clearance height in accordance with Table 1509.6.5.

Exception: In buildings where the existing rooftop equipment, in the opinion of the building official,

provides sufficient clearance to repair, recover, replace and/or maintain the roofing system or any

of its components, such existing equipment need not comply with Table 1509.6.5.

TABLE 1509.6.5
CLEARANCE BELOW RAISED ROOF
MOUNTED MECHANICAL UNITS
WIDTH OF MECHNAICAL UNIT (inches)	MINIMUM CLEARANCE ABOVE SURFACES (inches)
<24	14
24 < 36	18 14
36 < 48	24 14
48 < 60	30 14
>60	48

Exception: When removing or replacing roof mounted mechanical units for individual units and/or

spaces within multi-unit buildings the individual units mav be reinstalled utilizing the existing system of

attachment. At such time of reroofing of the building all mechanical units must be brought into

compliance with this code section.

Mechanical and Roofing TAC’s.

Vote:

2^nd – Calleja for negative roll call

0 yes – 7 No

Not needed for State-wide use.

Pinellas County Construction Licensing Board (PCCLB)

Florida Building Code, Residential

AMEND EXISTING SECTION

M1411.3 Condensate disposal. Condensate from all cooling coils or evaporators shall be

conveyed from the drain pan outlet to an approved place of disposal. Such piping shall

maintain a minimum horizontal slope in the direction of discharge of not less than 1/8 unit

vertical in 12 units horizontal (1-percent slope). Condensate shall not discharge into a street,

alley or other areas where it would cause a nuisance. Pipe Insulation: All primary condensate

drain within unconditioned areas shall be insulated.

Mechanical TAC

2^nd Crum for neg roll call

0 Yes – 7 No

NAR not needed for state-wide use