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Replacement Parts

FURNACES

MODULAR AIR HANDLERS / ELECTRIC FURNACES

WMA Series for "Cooling Only" or "Electric Heat with Cooling".

WMA - Multi-positional Modula Air Handler/Electric Furnace

The quiet and efficient WMA modular air handlers are factory assembled. wired and tested to assure safe, dependable and economical operation for residential and commercial applications. The unit’s multi-positional design accommodates upflow, downflow, and horizontal installation applications making it ideal for basement, attic, slab, alcove or crawl space locations. Matching the WMA with our air conditioning systems is a great choice for customers with boiler and baseboard heat looking to add a cooling only system. For a complete and efficient electric heating and cooling system, add the optional WHK heat strip to the WMA and match our heat pump system.

FEATURES


5 Year Limited Replacement Parts Warranty
  • Multi-positional compact cabinet for limited space applications.

  • Standard 240V wiring and breakers.

  • Direct-drive, multiple-speed blower motor is permanently lubricated for maintenance-free operation with one minute blower-off delay for increased efficiency.

  • Designed for use with both air conditioning and heat pumps, match the width of the WMA air handler with the appropriate air conditioning or heat pump indoor coil.

  • 5 Year - Limited Parts Warranty

    Not Certified for Mobile Home Use.

    SEE SYSTEM ELECTRICAL REQUIREMENTS

WHK (Optional) Electric Heat Strip - For Electric Furnace Applications

Model WKW Electric Heat Strips - For use with Model WMAH Air Handlers

The WHK electric heat strip is designed to be easily installed into the WMA air handler to convert the air handler from a "Cooling Only" unit to an electric furnace. These systems use standard 240V wiring and breakers.

FEATURES
  • Converts WMA Air Handlers for Electric Heat

  • Available in 10kw, 15kw, 19kw, and 20kw sizes

  • Standard 240V wiring using Standard 240V Breakers

  • 5 Year - Limited Parts Warranty

HOW TO SELECT AN AIR HANDLER / ELECTRIC FURNACE

Estimating the Furnace Size

You can refer to an estimate or proposal from a local contractor, refer to the size of your existing system that you may want replaced, or use the sizing estimation chart provided on this page.

 

Use the map to determine your Region based on the location of your home. Using the equipment charts, find your Region and go down the column to locate the range that covers the Square Footage of your home. Follow the row to the right to determine the recommended System Size for your Air Handler.

Estimate the Heating and Cooling Size for your home.

NOTE: These tables and charts are intended to be used as a guideline only. The information is based on conventional window space (<15%), insulation and building construction. Only use these tables as a reference. When including a finished basement, use 1/2 of the finished basement square footage with the rest of the area being calculated.


MODULAR AIR HANDLER SELECTION - COOLING APPLICATIONS

Cooling Applications

Find the Air Handler Application Size listed below. Refer to the section on How To Select An Air Conditioning System to verify a complete matched system has been selected.

 

Note: When selecting the indoor coil, make sure the width of the coil matches the width of the air handler.

SQUARE FOOTAGE OF YOUR HOME

AIR HANDLER

SIZE

REGION 1

REGION 2

REGION 3

REGION 4

REGION 5

935-1680

880-1580

830-1500

680-1225

680-1225

1.5 -2 TON

1680-2435

1580-2290

1500-2165

1225-1770

1225-1770

2.5-3 TON

2435-3375

2290-3175

2165-3000

1770-2455

1770-2455

3.5-4 TON

3375-3935

3175-3705

3000-3500

2455-2860

2455-2860

5 TON


(OPTIONAL) HEAT STRIP SELECTION- HEATING APPLICATIONS

Heating Applications

Using the chart below, find your Region and go down the column to locate the range that covers the Square Footage of your home. Follow the row to the right to determine the Heat Strip for your application.

 

NOTE: The appropriate Heat Strips that fit each Air Handler are listed in the equipment charts below.

SQUARE FOOTAGE OF YOUR HOME

(Optional)

HEAT STRIP SIZE

REGION 1

REGION 2

REGION 3

REGION 4

REGION 5

600-830

650-900

700-1000

850-1220

950-1365

10 KILOWATT

830-1250

900-1350

1000-1500

1220-1825

1365-2050

15 KILOWATT

1465-1650

1580-1800

1770-2000

2145-2450

2400-2725

20 KILOWATT

1650-2080

1800-2245

2000-2510

2450-3050

2725-3415

25 KILOWATT

* 19 KILOWATT Electric Heat Strips are for Model WMA 36 Only.

Find the Air Handler Application Size listed below. Refer to the section on How To Order A Heat Pump System to verify a complete matched system has been selected. Note: When selecting the indoor coil, make sure the width of the coil matches the width of the air handler.


1.5-2.0 Ton Multi-positional Air Handler / Electric Furnace

Item #

Dimensions (Inches)

(h x w x d)

Cooling Tons

Wt. (lbs.)

WMA 24

25 x 17.5 x 22

1.5-2.0

75

Electric Furnace Applications

WHK Electric Heat Strip - For Electric Furnace Applications

Item #

Max. BTU Output

Kilowatts

Wt. (lbs.)

WHK 10

34,130

10 kW

6

Item #

Description

Wt. (lbs.)

1F78-151

5 Day / 2 Day Digital Programmable "Heat & Cool" Thermostat For Single Stage heating and cooling applications.

1


 

2.5-3.0 Ton Multi-positional Air Handler / Electric Furnace

Item #

Dimensions (Inches)

(h x w x d)

Cooling Tons

Wt. (lbs.)

WMA 36

25 x 17.5 x 22

1.5-3.0

80

Electric Furnace Applications

WHK Electric Heat Strip - For Electric Furnace Applications

Item #

Max. BTU Output

Kilowatts

Wt. (lbs.)

WHK 10

34,130

10 kW

6

WHK 15

51,195

15 kW

8

* 19 KILOWATT Electric Heat Strips are for Model WMA 36 Only.

Item #

Description

Wt. (lbs.)

1F78-151

5 Day / 2 Day Digital Programmable "Heat & Cool" Thermostat For Single Stage heating and cooling applications.

1


 

3.5-4.0 Ton Multi-positional Air Handler / Electric Furnace

Item #

Dimensions (Inches)

(h x w x d)

Cooling Tons

Wt. (lbs.)

WMA 48

25 x 21 x 22

2.5-4.0

90

Electric Furnace Applications

WHK Electric Heat Strip - For Electric Furnace Applications

Item #

Max. BTU Output

Kilowatts

Wt. (lbs.)

WHK 15W

51,195

15 kW

8

WHK 20

68,260

20 kW

9

Item #

Description

Wt. (lbs.)

1F78-151

5 Day / 2 Day Digital Programmable "Heat & Cool" Thermostat For Single Stage heating and cooling applications.

1


 

4.5-5.0 Ton Multi-positional Air Handler / Electric Furnace

Item #

Dimensions (Inches)

(h x w x d)

Cooling Tons

Wt. (lbs.)

WMA 60

25 x 24.5 x 22

3.5-4.0

97

Electric Furnace Applications

WHK Electric Heat Strip - For Electric Furnace Applications

Item #

Max. BTU Output

Kilowatts

Wt. (lbs.)

WHK 15W

51,195

15 kW

8

WHK 20

68,260

20 kW

9

WHK 25

85,325

25 kW

9

Item #

Description

Wt. (lbs.)

1F78-151

5 Day / 2 Day Digital Programmable "Heat & Cool" Thermostat For Single Stage heating and cooling applications.

1


 

 

SYSTEM ELECTRICAL REQUIREMENTS (230/240V - Single Phase - 60 Hertz)
Hamilton Stock No.

Cooling Only Applications

Heating Applications (With WHK Heat Strips)
Breaker Size Wire Gauge With WHK Breaker Size Wire Gauge
WMA 24 15 14 WHK 10 60 6
WMA 36 15 14 WHK 10 60 6
WHK 15 60 25 - 6 10 -
WMA 48 15 14 WHK 15W 60 25 - 6 10 -
WHK 20 60 50 - 6 8 -
WMA 60 15 14 WHK 15W 60 25 - 6 10 -
WHK 20 60 50 - 6 8 -
WHK 25 60 50 25 6 8 10

 

Available PDF downloads for:

WMA Multi-positional Air Handlers & WHK Accessory Heat Strips

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Copyright in all of the material on the Hamilton Home Products, Inc. and associated websites, including but not limited to information, text, artwork, images, and pictures (herein referred to as "CONTENT"), is either owned by or administered by Hamilton Home Products, Inc. (for the purpose of this notice Hamilton Home Products shall include Hamilton, its employees, servants and agents) for and on behalf of Hamilton Home Products, Inc. P.O. Box 185, Canal Winchester, Ohio 43110