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Lennox 34W44 / 100145-07 OEM Reversing Valve – 1/2" x 3/4", 24 VAC Solenoid, Heat Pump Valve

Lennox 34W44 / 100145-07 OEM Reversing Valve – 1/2" x 3/4", 24 VAC Solenoid, Heat Pump Valve

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Regular price $152.16 USD
Regular price Sale price $152.16 USD
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Lennox 34W44 / 100145-07 Heat Pump Reversing Valve

  • Genuine Lennox OEM reversing valve

  • 1/2-inch x 3/4-inch refrigerant connections

  • 24 VAC reversing valve solenoid

  • Controls refrigerant direction for heating and cooling

  • Cat # 34W44 – Model / Part # 100145-07

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Specifications

Specification

Details

Brand

Lennox

Catalog Number

34W44

Model / Part Number

100145-07

Product Type

Reversing Valve

Application

Heat Pump

Connection Size

1/2" x 3/4"

Solenoid Voltage

24 VAC

Valve Operation

Electrically Actuated

Function

Reverses Refrigerant Flow

System Operation

Heating / Cooling

Refrigeration Circuit

Heat Pump

OEM Component

Yes

 

description

The Lennox 34W44, model/part 100145-07, is a genuine OEM reversing valve with a 24 VAC solenoid designed for select Lennox heat pump systems. The valve uses 1/2-inch x 3/4-inch connections and controls refrigerant direction as the heat pump switches between heating and cooling operation.

The reversing valve is a critical component of a heat pump refrigeration circuit. When energized or de-energized by the system controls, it redirects refrigerant flow so the indoor and outdoor coils can change functions between heating and cooling modes.

Key Features & Function

  • Genuine Lennox OEM component
  • Cat #: 34W44
  • Model / Part #: 100145-07
  • Heat pump reversing valve
  • 1/2" x 3/4" connections
  • 24 VAC solenoid
  • Electrically operated refrigerant valve
  • Changes refrigerant flow direction
  • Supports heating and cooling operation
  • Designed for compatible Lennox heat pump equipment
  • OEM replacement component

Product Details & Specifications

Specification

Details

Brand

Lennox

Catalog Number

34W44

Model / Part Number

100145-07

Product Type

Reversing Valve

Application

Heat Pump

Connection Size

1/2" x 3/4"

Solenoid Voltage

24 VAC

Valve Operation

Electrically Actuated

Function

Reverses Refrigerant Flow

System Operation

Heating / Cooling

Refrigeration Circuit

Heat Pump

OEM Component

Yes

🛠️ HVAC Depot Pro Tip

Do not select a reversing valve based only on the tubing diameter.

For the 34W44 / 100145-07, verify:

  • Cat # 34W44
  • Part # 100145-07
  • 1/2" x 3/4" connection sizes
  • 24 VAC solenoid
  • Outdoor heat pump model
  • Refrigerant type
  • Valve orientation and piping configuration
  • Original valve specifications

If a heat pump operates correctly in one mode but has refrigerant-flow problems when changing between heating and cooling, the reversing valve or its solenoid circuit may require diagnosis. Verify the 24 VAC control signal and solenoid operation before condemning the complete valve.

Equipment / Model Compatibility

The Lennox 34W44 / 100145-07 is designed for select Lennox heat pump equipment requiring this specific reversing-valve configuration.

Typical applications include compatible:

  • Lennox heat pumps
  • Residential split heat pump systems
  • Outdoor heat pump units
  • Heating and cooling refrigeration circuits
  • Equipment requiring a 24 VAC reversing-valve solenoid
  • Lennox systems specifically calling for 100145-07

Always verify the complete equipment model and serial number before ordering.

 

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

  • The item must be unused, uninstalled, and in its original condition.
  • The item must be returned in its original packaging.
  • Model numbers and serial numbers must match the original purchase records.
  • Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

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  • Products showing signs of installation, modification, or damage caused after delivery.
  • Items missing original packaging.
  • Sale or clearance items.
  • Special-order or custom-order products.
  • Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

  • Refunds will be issued to the original payment method.
  • Processing typically takes 7–14 business days after approval.
  • Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

  • Our shipping error,
  • A defective product,
  • A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.

Celest G.
Verified Customer
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