Airstream™
42B

Belt Drive Fan Coils

1,019 to 6,796 m³/h
600 to 4,000 cfm

42BH - Horizontal
40BV - Vertical

The 42B belt drive fan coil units provide year-round comfort air conditioning with central station operating economy. The 42B units are designed for high-static, ducted applications, using furred-in, horizontal and vertical models

Performance Features

Airflow capacities from 600 to 4000 cfm.
Outside air capability with mixing box.
Wide range of coil options for 2-pipe or 4-pipe system combinations.
Motors available from ¼ hp to 5 hp.
Forward-curved, centrifugal, double-inlet fans are statically and dynamically balanced at the factory.
2 in. pleated filter for indoor air quality.

Reliability Features

All equipment wiring complies with NEC requirements.
Units constructed in accordance with ETL and ETL, Canada standards.
Optional electric heaters are fully sheathed for marine applications.
Unit casing meets UL 181 and NFPA 90A standards.

Maintenance Features

Stainless steel marine double drain pan ensures positive drainage during pitch and roll.
Removable panels make access to components and connections easy.
Label information adhered to each unit includes model, size, coil information, electrical information, and tagging data.

Installation Features

Drives are pre-set at the factory for the specific airflow at the static pressures as ordered.
Variable-pitch pulley adjusts at the jobsite to accommodate limited ranges of air quantities and pressures.
Motor has an adjustable platform for easy belt adjustment.
Knockouts are provided for hanging the horizontal units that will accept a &frac38; in. threaded rod at the top and bottom of all unit corners.
1-in. long supply and return duct connections.
Single point electrical connection.

Standard Warranty

One-year parts.

Factory-Installed Options

Motor control only (24 v transformer, motor contactor, and terminal strip).
Interlocking disconnect switch.
Chilled water cooling coil.
DX cooling coil.
Hot water heating coil.
Steam heating coil.
Fully sheathed electric heating coil.
1 and 2-inch filter options.
Automatic air vents and drains on water coils.
Foil faced fiberglass insulation.
Closed cell insulation.
Double wall cabinet construction.
Seismic certified construction (OSHPD & IBC).
Motor horsepower range options.
Condensate overflow switch.

Field-Installed Accessories

Mixing box with base rails.

Physical Data (Sizes 06-12)

42BHE operating weight (lb.)
Unit Size	06	08	10	12
Nominal cfm	600	800	1000	1200
No heat	235	269	292	296
With heat	266	268	327	329
42BVE operating weight (lb.)
No heat	232	234	283	287
With heat	263	265	316	320
Filters (2 in. pleated)
Number	1	1	1	1
Size (in.)	16½ x 24	16½ x 24	18¼ x 33	18¼ x 33
Face area (sq. ft.)	2.8	2.8	4.2	4.2
Hydronic coils
Size (in.)	15 x 20	15 x 20	15 x 29	15 x 29
Face area (sq. ft.)	2.1	2.1	3.0	3.0
Fins per inch	10	10	10	10
Coil water volume (approx. gal. per row of coil)	0.240	0.240	0.324	0.324
Fans
Qty...Size (in.)	1...9 x 4	1...9 x 6	1...10 x 4	1...10 x 7
Hydronic coil conn. (in.)
8 Row (cooling)	1 nominal 1.125 OD	1 nominal 1.125 OD	1 nominal 1.125 OD	1 nominal 1.125 OD
4 and 6 Row (cooling)	¾ nominal 0.875OD	¾ nominal 0.875OD	¾ nominal 0.875OD	¾ nominal 0.875OD
1 Row (heating)	½ nominal 0.625 OD	½ nominal 0.625 OD	½ nominal 0.625 OD	½ nominal 0.625 OD
2 Row (heating)	½ nominal 0.625OD	½ nominal 0.625OD	½ nominal 0.625OD	½ nominal 0.625OD
DX Coil conn. liquid line (in.)	¼ nominal 0.375OD	¼ nominal 0.375OD	¼ nominal 0.375OD	¼ nominal 0.375OD
DX Coil conn. suction line (in.)	¾ nominal 0.875OD	¾ nominal 0.875OD	¾ nominal 0.875OD	¾ nominal 0.875OD
Drain conn. sizes (in.)	¾ MPT	¾ MPT	¾ MPT	¾ MPT

Physical Data (Sizes 16-40)

42BHE Operating weight (lb.)
Size	16	20	30	40
Nominal cfm	1600	2000	3000	4000
No heat	360	404	505	637
With heat	395	440	542	674
42BVE Operating weight (lb.)
No heat	337	412	504	606
With heat	371	448	541	644
Filters (2 in. pleated)
Number	2	2	2	2
Size (in.)	18¼ x 21½	20¾ x 22	29 x 22	29 x 29
Face area (sq. ft.)	5.5	6.3	8.9	11.7
Hydronic coils
Size (in.)	15 x 39	18 x 40	27 x 40	27 x 54
Face area (sq. ft.)	4.1	4.9	7.7	10.3
Fins per inch	10	10	10	10
Coil water volume (approx. gal. per row of coil)	0.420	0.492	0.768	1.020
Fans
Qty...Size (in.)	1...11 x 10	1...12 x 9	1...12 x 12	1...15 x 12
Hydronic coil conn. (in.)
8 Row (cooling)	1 nominal 1.125 OD	1 nominal 1.125 OD	1½ nominal 1.625OD	1½ nominal 1.625OD
4 and 6 Row (cooling)	1 nominal 1.125OD	1 nominal 1.125OD	1½ nominal 1.625OD	1½ nominal 1.625OD
1 Row (heating)	½ nominal 0.625 OD	½ nominal 0.625 OD	1½ nominal 1.625OD	1½ nominal 1.625OD
2 Row (heating)	1 nominal 1.125OD	1 nominal 1.125OD	1½ nominal 1.625OD	1½ nominal 1.625OD
DX Coil conn. liquid line (in.)	¼ nominal 0.375OD	¼ nominal 0.375OD	½ nominal 0.625	½ nominal 0.625
DX Coil conn. suction line (in.)	1 nominal 1.125OD	1 nominal 1.125OD	1½ nominal 1.625OD	1½ nominal 1.625OD
Drain conn. sizes (in.)	¾ MPT	¾ MPT	¾ MPT	¾ MPT

Features