HAG Air Gap Assembly

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® Options HAG Air Gap Assembly The Big Dipper® HAG Horizontal Air Gap Assembly Kit offers a simple yet effective method for providing an air gap for meeting health department or plumbing code require- ments. Among the many different methods of creating an air gap to protect against cross- contamination, the most popular is an air gap directly between the sink discharge and the outflow piping. This means that in the event of a backup, effluent will spill out of this gap under the sink discharge and directly onto the floor without any danger of cross-contamination. The optional field-installable HAG-BA-

® 1 Solids Strainer Baskets collect incidental Big Dipper HAG-2 Servicing a W-200-IS Unit solids from the drain flow. How Does the HAG Air Gap Assembly Work?

Drain Sink Drain Sink Drain Sink Drain Tailpiece

Flow Flow Flow Control Control Control 2” Gap Min. 2” Gap Min. (50 mm) (50 mm) Air Gap Drain Trough

Flow

Support *Optional HAG-BA-1 Support Leg Leg Solids Strainer Baskets Big Dipper® Not Shown Unit

As the sink drains, effluent flows into the all stainless steel construction HAG Air Gap. The flow is slowed down by flow controls (provided) attached at the end of each drain stem. There is a 2” (50 mm) or greater gap between the bottom of the drain tailpiece and the drainage piping. In the event of a blockage downstream of the sink, effluent flows out of this 2” (50 mm) gap onto the kitchen floor preventing any cross-contamination between the sinks or contamination from effluent. The HAG Air Gap may also be plumbed through a Big Dipper® Auto- matic Grease & Oils Removal Unit. Incidental solids in the flow may be strained and collected using the optional, field-installable HAG-BA-1 Solids Strainer Baskets. The HAG is mounted to the floor using threaded rod support legs and feet (supplied). A Bracket that mounts the HAG assembly to the wall is also provided.

©2011 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice 6/11 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651 • North America: (800) 633-4204 1 E-mail: [email protected] • Online: www.big-dipper.com ® Options HAG Air Gap Assembly HAG-2 Horizontal Air Gap Trough Component

2” (50 mm) Pipe Outlet 4” (10.1 cm) 4” 2” (50 mm) Pipe Outlet (10.2 cm)

3” (7.6 cm) Support Foot & 1.5” 6” (15.2 cm) Threaded Rod Support Leg (3.81 cm)

Outlet View Side View

* The HAG-2 Air Gap is shipped in 72” (182.9 cm) lengths. It is field-trimmed to fit the appli- cation. It is recommended 8” (20.3 cm) be left behind the drain valve that is furthest from the Big Dipper® unit. The threaded rod supports & wall mount brackets must also be trimmed to fit the sink installation. A 1/4” drop should be used for every 1’ of run (2 cm per meter).

HAG-3 Horizontal Air Gap Trough Component

3” (150 mm) Pipe Outlet 3” (150 mm) Pipe Outlet 4” (10.2 cm)

3” (7.6 cm) Support Foot & 1.5” Threaded Rod Support Leg (3.81 cm) 6” (15.2 cm)

Outlet View Side View * The HAG-3 Air Gap is shipped in 72” (182.9 cm) lengths. It is field-trimmed to fit the appli- cation. It is recommended 8” (20.3 cm) be left behind the drain valve that is furthest from the Big Dipper® unit. The threaded rod supports & wall mount bracket must also be trimmed to fit the sink installation. A 1/4” drop should be used for every 1’ of run (2 cm per meter).

©2011 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice 2 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651 • North America: (800) 633-4204 6/11 E-mail: [email protected] • Online: www.big-dipper.com ® Options HAG Air Gap Layouts Model HAG-2 Vent (Note: Vent may be indepen- • 2” (50 mm) Outlet dent direct connect to atmo- • Optional HAG-BA-1 Strainer Baskets Shown Installed sphere or code-approved air admittance valve.) NOTE: WITH INDIRECT DRAIN CONNECTION, NEVER CONNECT TO FACILITY VENT

Flow Controls Big Dipper® W-250-IS with (Provided) 2” (50 mm) Inlet/Outlet HAG-2 Air Gap } Air Gap {

Optional HAG-BA-1 Strainer Baskets

Specify HAG-2 for 2” (50 mm) Sink Drain Piping Floor Sink • Support Legs & Wall Mount Bracket Supplied • Minimum slope of 1/4” drop per 12” run necessary for proper operation (2 cm per meter) To Sanitary Sewer Line • All Stainless Steel Construction Model HAG-3 • 3” (150 mm) Outlet • Optional HAG-BA-1 Strainer Baskets Shown Installed

Vent (Note: Vent may be inde- pendent direct connect to atmosphere or code- approved air admittance valve.) NOTE: WITH INDIRECT ® Flow Controls DRAIN CONNECTION, Big Dipper W-350-IS with (Provided) NEVER CONNECT TO FACILITY VENT 3” (150 mm) Inlet/Outlet HAG-3 } Air Gap { } Air Gap { Air Gap

Optional HAG-BA-1 Strainer Baskets

Floor Sink Specify HAG-3 for 3” (150 mm) Sink Drain Piping • Support Legs & Wall Mount Bracket Supplied • Minimum slope of 1/4” drop per 12” run necessary for proper operation To Sanitary Sewer Line (2 cm per meter) • All Stainless Steel Construction

NOTE: Drawing for reference only. Equipment must be installed in compliance with all applicable laws, regulations and codes, including plumbing codes. Installation should be performed by a qualified plumber.

©2011 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice 6/11 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651 • North America: (800) 633-4204 3 E-mail: [email protected] • Online: www.big-dipper.com ® Options

HAG-BA-1 Solids Strainer Basket HAG-BA-1 Solids Strainer Baskets (Optional)

3.75” (9.5 cm)

5.93” (15 cm) End View

3.75” (9.5 cm)

7.087” (18 cm) Side View

The Optional HAG-BA-1 Solids Strainer Baskets separate and collect incidental food solids that are contained within the drain flow. These collected, dewatered solids may be then disposed of in the trash receptacle. One HAG-BA-1 Solids Strainer Basket is required per sink drain/sink bowl. For example, a typical three compartment sink will require three HAG-BA-1 Solids Strainer Baskets. Each HAG-BA-1 is ordered individually.

©2011 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice 4 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651 • North America: (800) 633-4204 6/11 E-mail: [email protected] • Online: www.big-dipper.com