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ADP 176799993 #93 Piston Orifice – 5 Ton, R-22 / R-410A Evaporator Coil Refrigerant Metering Device

Name: ADP 176799993 #93 Piston Orifice – 5 Ton, R-22 / R-410A Evaporator Coil Refrigerant Metering Device
Brand: ADP
SKU: 4502565120
Price: 25.00 USD
Availability: InStock

Low stock: 1 left

$25.00 USD

Sale Sold out

Shipping calculated at checkout.

ADP 176799993 #93 piston orifice for compatible 5-ton evaporator coils and air handlers. Fixed refrigerant metering device for R-22 and R-410A applications.

#93 / .093 fixed refrigerant metering piston
Designed for compatible 5-ton / 60,000 BTUH HVAC applications
Compatible with specified R-22 and R-410A ADP applications
Designed for compatible ADP evaporator coils and air handlers
OEM fixed-orifice refrigerant metering component

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Specifications

Specification

Details

Brand

Advanced Distributor Products (ADP)

Part Number / MPN

176799993

Product Type

Refrigerant Piston / Metering Orifice

Piston Size

#93 / .093

Nominal Application

5 Ton

Capacity Application

60,000 BTUH

R-22 Application

Yes

R-410A Application

Yes

Metering Type

Fixed Orifice

Application

Evaporator Coil / Air Handler

OEM

ADP

description

The ADP 176799993 is a #93 fixed piston refrigerant metering orifice designed for compatible Advanced Distributor Products (ADP) evaporator coils and air handlers.

ADP's replacement-parts documentation identifies piston size #93 for 60,000 BTUH / 5-ton applications with both R-22 and R-410A configurations.

This precision metering device controls refrigerant flow entering the evaporator coil and is intended to restore the proper fixed-orifice configuration when servicing compatible HVAC equipment.

Key Features & Function

Advanced Distributor Products (ADP)
Part Number: 176799993
Piston Size: #93 / .093
Fixed refrigerant metering device
5-ton / 60,000 BTUH application
Used with compatible R-22 systems
Used with compatible R-410A systems
Designed for compatible ADP evaporator coils
Used for refrigerant flow control
OEM replacement component

Product Details & Specifications

Specification	Details
Brand	Advanced Distributor Products (ADP)
Part Number / MPN	176799993
Product Type	Refrigerant Piston / Metering Orifice
Piston Size	#93 / .093
Nominal Application	5 Ton
Capacity Application	60,000 BTUH
R-22 Application	Yes
R-410A Application	Yes
Metering Type	Fixed Orifice
Application	Evaporator Coil / Air Handler
OEM	ADP

ADP's parts table specifically lists 176799993 as the #93 piston for 60 MBTUH equipment under both its R-22 and R-410A piston tables.

🛠️ HVAC Depot Pro Tip

Do not select a piston by tonnage alone.

Before installing the 176799993 #93 piston, verify:

Outdoor condenser model
Evaporator coil model
Refrigerant type
Required piston size
Manufacturer charging data
Indoor/outdoor equipment combination

Even though #93 is associated with 5-ton applications in ADP's parts documentation, the outdoor unit manufacturer's charging or match-up information should determine the required metering device.

Equipment / Model Compatibility

The ADP 176799993 is intended for compatible ADP evaporator coils and air handlers requiring a #93 fixed piston.

Typical applications include:

ADP evaporator coils
ADP air handlers
5-ton / 60,000 BTUH systems
Compatible R-22 systems
Compatible R-410A systems
Fixed-orifice HVAC applications

Always verify the required piston size for the exact indoor and outdoor equipment combination before installation.

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:

Installed or used parts.
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

Refund & Return Policy

Last Updated: June 2026

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:

Installed or used parts.
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

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Do you sell refrigerants to the public?

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ADP 176799993 #93 Piston Orifice – 5 Ton, R-22 / R-410A Evaporator Coil Refrigerant Metering Device