Daikin 18-Inch Downflow Square-to-Round Duct Adapter for 4-6 Ton Packaged Rooftop Units | DDNSQRD487218

Daikin

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DDNSQRD487218
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Daikin 18-Inch Downflow Square-to-Round Duct Adapter for 4-6 Ton Packaged Rooftop Units
Condition:
New
Width:
30.00 (in)
Height:
12.00 (in)
Depth:
24.00 (in)

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Overview

Daikin 18-Inch Downflow Square-to-Round Duct Adapter for 4-6 Ton Packaged Rooftop Units | DDNSQRD487218

Daikin 18-Inch Downflow Square-to-Round Duct Adapter for 4-6 Ton Packaged Rooftop Units
Product details

Description

Product Summary

The Daikin DDNSQRD487218 is a downflow square-to-round adapter, 18-inch round. It transitions the unit's rectangular supply and return openings to round duct for a clean, low-leak connection.

Compatible equipment: Daikin DCC/DCG/DCH 4-6 ton packaged rooftop units. It is intended for HVAC contractors and facility teams installing, replacing or upgrading Daikin packaged equipment.

Key Features

  • Model-Matched Fit: Designed for Daikin DCC/DCG/DCH 4-6 ton packaged rooftop units.
  • Factory Part Number: Genuine part number DDNSQRD487218 for accurate ordering and replacement.
  • Round Duct Transition: Connects rectangular unit openings to round supply and return duct.
  • Cleaner Installation: Reduces field fabrication and helps seal duct connections.

Ideal Applications

  • Light commercial rooftop installations
  • Retail, restaurant and office buildings
  • Schools and community buildings
  • Replacement and retrofit projects

Frequently Asked Questions

What units does the DDNSQRD487218 fit?

It is listed for Daikin DCC/DCG/DCH 4-6 ton packaged rooftop units. Confirm your unit model number before ordering.

Is this a genuine Daikin part?

Yes, DDNSQRD487218 is the manufacturer part number.

Do I need any other parts?

Most installations need only this part plus standard fasteners and sealant; check the unit installation manual.

Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Brand:
Daikin
Width:
30.00 (in)
Height:
12.00 (in)
Depth:
24.00 (in)
Weight:
35.00 LBS
Compatible Unit Tonnage:
4-6 Ton
Compatible Cooling Capacity (BTU):
72,000
Product Category:
Duct Adapter
Product Type:
HVAC Accessory
Manufacturer Part Number:
DDNSQRD487218
Compatible Equipment:
4-6 Ton Packaged Rooftop Units
Duct Diameter:
18 in
Airflow Configuration:
Downflow
Part Type:
Adapter
Compatible Units:
Daikin DCC/DCG/DCH 4-6 ton packaged rooftop units
Unit Tonnage:
4-6 tons
Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.

2023 Energy Standards

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Documents & warranty
Warranty
5 Years Parts | Registration Required within 60 Days of Purchase
Frequently asked questions
What warranty comes with the DDNSQRD487218?
5 Years Parts | Registration Required within 60 Days of Purchase
Who makes the DDNSQRD487218?
The DDNSQRD487218 is made by Daikin.

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