330 - EXTREME WEATHER FOIL TAPE

Acrylic, specially designed for extremely hot or cold temperatures

Extreme weather foil with wide work-

ing temperature range designed for all HVAC Systems. Also, suit- able for general repairs and a variety of insulation uses.

TYPICAL VALUES:

ADHESIVE: Acrylic ADHESION TO STEEL (oz./in.): 55 ADHESION TO BACKING (oz./in.): 40 TENSILE (lbs./in.): 14 WORKING TEMP. RANGE (°F): -35 to 260 MINIMUM APPLICATION TEMPERATURE (°F): -25

CAT. NO. MFG. NO. DESCRIPTION 8H291 330

Extreme Weather, Aluminum Foil Tape 3” x 50 yd.

CARTON QUANTITY 16

EACH $22.34

444 - LINE SET TAPE

This tape is UV resistant, tough, polypro- pylene film coated with an aggressive acrylic adhesive designed for high initial adhesion and long term durability. Tape has proven to have exceptional bond to foam pipe insulation and will not dete- riorate over time. Excellent alternative to

cloth duct tape for long term durability on HVACR insulated line sets. Service temperature -20 to 210°F.

TYPICAL VALUES:

ADHESIVE: Acrylic ADHESION TO STEEL (oz./in.): 45 TENSILE (lbs./in.): 32 MAX. OPERATING TEMPERATURE: 210°F

CAT. NO. MFG. NO. SIZE 8H286

685012 EACH 1-7/8” x 60 yd Roll $11.43

367-17 - FOILMASTIC™ Butyl rubber tape used for sealing HVAC ducting Listed: UL 181B-FX

Unique foil-backed, butyl rubber tape offers near-permanent, zero-leakage sealing when connecting, sealing, and seaming heating, ven- tilation and air conditioning assemblies. Tape

is repositionable during installation and is paintable. This tape is ideal for use on chimneys and vent stacks, gouges in metal panels, and mobile home repair.

TYPICAL VALUES:

ADHESIVE: Butyl rubber TEMPERATURE: Up to 200°F ADHESION: 90 Ounces/Inch TENSILE STRENGTH: 17 lbs/inch

CAT. NO. MFG. NO. DESCRIPTION EACH 8H287A 8H287

652122 652123

2” x 100 ft. roll 3” x 100 ft. roll

$34.87 $55.90

DUCT SIZING FOR ADD-ON TECH TIP

Many duct systems are under sized. Many become undersized because air conditioning was added to an existing heating system without verifying that the duct work could handle the additional CFM required for air conditioning.

Typically, duct work connected to an existing “heating only” system is insufficient to handle air conditioning requirements. Adding air conditioning to a duct system designed for “heating only” may result in system performance problems and prema- ture system failure.

When estimating an “ADD-ON’ air conditioning installation, be sure to determine the existing duct system sizing is suf- ficient to handle the increased CFM required for air condition- ing, before offering an estimate.

If the existing duct system is not of adequate size, supply/re- turn duct, registers and grilles need be added to ensure proper system operation.

Air conditioning duct systems require anywhere from 20% to 40% increase in size depending on the tonnage installed and the existing duct sizes.

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DUCT, REGISTERS & GRILLES