Williams AH020W4B421L00
Williams AH020W4B421L00
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Williams 'B' Series Belt-Drive Horizontal Air Handler, Left Piping, 115V, 6 Coil Rows (4 CW 2 HW) - 2,000 CFM, 131,247 BTU

Model:

AH020W4B421L00

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Williams 'B' Series Belt-Drive Horizontal Air Handler, Left Piping, 115V, 6 Coil Rows (4 CW 2 HW) - 2,000 CFM, 131,247 BTU
Williams 'B' Series Belt-Drive Horizontal Air Handler, Left Piping, 115V, 6 Coil Rows (4 CW 2 HW) - 2,000 CFM, 131,247 BTU
Model: AH020W4B421L00
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Expert Recommended Accessories Selected by Ken, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10

Features

    A Horizontal model of Belt-Driven Air Handlers for both hydronic and DX applications, these rugged units are dependable air handlers. Housed in a heavy-gauge, galvanized steel cabinet. Controls and motors are factory-mounted and provided in a single-point power supply. Access doors are provided on both sides of the unit for easy maintenance.
  • Williams B204421L00 Features
  • Heavy-gauge galvanized steel cabinet insulated with 1/2" thick, over three-pound density, neoprene-coated fiberglass.
  • Two-pipe or Four-pipe hydronic heating and/or cooling. Four pipe systems may be converted to a two-pipe system by capping off one set of pipes.
  • Coils are 1/2" OD copper tubes with aluminum fins (10 FPI) equipped with manual-air vent. Coils are 100% underwater pressure tested at 350 PSI with a 300 PSI working pressure.
  • Galvanized drain pan features powder-coated epoxy with 1/4" thick elastomeric insulation and has primary and secondary drain connections.
  • Belt-driven, draw-through design with forward-curved and dynamically balanced blowers.
  • Wide range of motor sizes and adjustable, variable-pitch drive sheave and cast-iron pulley keyed to motor shaft (ordered separately & required for operation).
  • Two-inch thick, 30/30 pleated filter, flatly mounted, with spring-loaded clips on each side of the access door for easy maintenance without the use of tools.
  • Product Note
    Williams B204421L00 Compatible Sheave Kits:
      Kit Model # at Horsepower @ Inches of Static Pressure

    • S6 operating at 3/4 hp @ 0.0
    • S7 operating at 3/4 hp @ 0.1
    • S7/S16* operating at 1 hp @ 0.2
    • S8/S14* operating at 1 hp @ 0.3
    • S8/S14* operating at 1 hp @ 0.4
    • S8/S14* operating at 1 hp @ 0.5
    • S9/S20* operating at 1 hp @ 0.6
    • S9/S20* operating at 1 hp @ 0.7
    • S9/S20* operating at 1 hp @ 0.8
    • S9/S20* operating at 1-1/2 hp @ 0.9
    • S39/S20* operating at 1-1/2 hp @ 1.0

    • * Use with 3-phase motors only
California residents see
Warning: This product can expose you to chemicals including Epichlorohydrin which is known to the State of California to cause Cancer.
For more information go to: www.p65Warnings.ca.gov

Specifications

AH020W4B421L00
specs product image PID-43788
General Information
Product Line
B
Blower Motor Type
Variable Speed
Coil Type
Hydronic
Configuration Learn More
Configuration
Orientation describes the direction that air will flow through a piece of equipment. (e.g. air will flow horizontally through a "Horizontal" unit heater.) Most equipment will only function properly if installed in the proper orientation.
Horizontal
Electric Heat
Optional
Additional Model Numbers

B204421L00, AH020W4B421L00

Performance
Heating BTU
131247
Nominal Maximum Cooling Capacity
42246 BTU
Maximum Air Flow
2000 CFM
Electrical Data
Voltage
115 Volts
Phase
1
Frequency
60 Hz
Dimensions
Cold Water Inlet
1 Inch
Hot Water Outlet
1 Inch
Hot Water Inlet
1 Inch
Cold Water Outlet
1 Inch
Product Height
24 Inches
Product Width
39 Inches
Product Depth
42 Inches
Product Weight
410 Pounds
Shipping Weight
420 Pounds
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
1 Year

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Williams 'B' Series Belt-Drive Horizontal Air Handler, Left Piping, 115V, 6 Coil Rows (4 CW 2 HW) - 2,000 CFM, 131,247 BTU
Williams AH020W4B421L00
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