McQuay Parts – Factory Authorized OEM Parts Distributor

Your Complete Source for Genuine McQuay Parts Since 1988

When you need McQuay parts, you need them fast and you need them right. For over 36 years, Air Distributors has been the trusted factory authorized distributor for McQuay parts, serving HVAC contractors, facilities managers, and service technicians throughout the USA. Our extensive inventory of genuine OEM McQuay parts ensures your equipment runs reliably, efficiently, and safely.

From McQuay PTAC parts to complex chiller components, we stock thousands of genuine McQuay replacement parts with same-day shipping availability. Our technical expertise helps you identify the exact parts you need, while our competitive wholesale pricing keeps your project budgets on track.

Why Choose Air Distributors for McQuay Parts?

Factory Authorized Excellence Since 1988

As a factory authorized McQuay parts distributor, we provide:

Genuine OEM McQuay Parts Only – No aftermarket substitutes or generic alternatives
Complete Manufacturer Warranty – Full 1-year coverage on all genuine parts
Expert Technical Support – Factory-trained staff for accurate part identification
Extensive Inventory – Thousands of McQuay parts in stock for immediate shipping
Competitive Wholesale Pricing – Direct distributor margins passed to customers
Same-Day Shipping – Orders placed by 2 PM EST ship the same day
Cross-Reference Expertise – From legacy Singer/AAF to current Daikin Applied

Serving Professional HVAC Markets

Our McQuay parts distribution specifically supports:

Commercial HVAC contractors
Building maintenance teams
Property management companies
Hospital facilities departments
Educational institution maintenance
Hotel engineering staffs
Service companies

Comprehensive McQuay Parts Inventory

Control Boards & Electronic Components

McQuay control board replacement is one of our most frequent services. We stock the complete range of McQuay electronic components:

McQuay Control Boards – Most Popular Models:

Mark IV Control Board (056792401K)

Advanced diagnostic capabilities
Fits CCH/CCG/CCW series units
Direct replacement for older Mark III boards
Call for current pricing

Mark III Control Board (48166902K)

24V control system
FC/FG/FW series compatibility
Legacy unit support
Call for current pricing

Touch Pad Controls & Interfaces:

300042639: Universal touch pad control
Digital display thermostats
Remote control interfaces
Quote available on request

Motors & Mechanical Components

Fan Motors – Complete Selection:

Our McQuay parts inventory includes motors for every application:

Condenser Fan Motors:

106163021: 1/30HP, 115/60/1 PSC
106163801: 1/4HP, 115/60/1 PSC
106500502: 1/2HP, 208-230/60/1
106501201: 3/4HP, 208-230/60/3
Contact for specifications and pricing

Blower Motors:

Indoor air handler motors
Direct drive and belt drive options
PSC and ECM technology available
Multiple mounting configurations
Complete selection available

Motor Accessories:

Start and run capacitors
Motor mounting brackets
Bearings and bushings
Motor protection devices
Call for current availability

Compressors & Refrigeration Parts

McQuay Compressor Selection:

Rotary Compressors:

300044132: LG replacement for obsolete 300039309
Capacity range: 7,000-18,000 BTU
R-410A refrigerant
Includes mounting hardware
Contact for quote

Scroll Compressors:

2-25 ton capacity range
High efficiency models
Tandem configurations
Custom pricing available

Refrigeration Components:

TXV expansion valves
Filter driers
Solenoid valves
Pressure switches
Sight glasses
Refrigerant controls
Complete component selection in stock

McQuay PTAC Parts

McQuay PTAC parts are among our most requested items due to the widespread use of these units in hospitality and multi-family applications:

PTAC Control Systems:

Legacy control box assemblies (B series)
Updated B+ control systems
Touch pad interfaces
Thermostat options

PTAC Mechanical Parts:

Heat strips: 2.5kW, 3.5kW, 5.0kW configurations
Indoor coils
Outdoor coils
Drain pans and kits
Grilles and louvers
Power cords with LCDI protection

Common PTAC Part Numbers:

300039369: Control box PTAC07/09B208-KXBA (obsolete)
300039428: Control box PTHP12B208-KXB (obsolete)
300042639: Touch pad control (current)
Various replacement options available

Chiller Parts & Components

McQuay Chiller Parts:

For commercial chiller applications, our McQuay parts inventory includes:

Control Systems:

MicroTech controllers
UCM control boards
Display panels
Communication modules
Sensor packages

Mechanical Components:

Oil pumps and motors
Oil filters and strainers
Gasket and O-ring kits
Vane actuators
Relief valves

Heat Exchangers:

Evaporator tubes and bundles
Condenser components
Shell and tube assemblies
Plate heat exchangers

Coils & Heat Transfer Components

Evaporator Coils:

DX cooling coils
Chilled water coils
Custom configurations available
Copper tube/aluminum fin standard
Coated options for corrosive environments

Condenser Coils:

Air-cooled condensers
Standard and microchannel
Replacement and retrofit

Specialty Coils:

Steam heating coils
Hot water coils
Reheat applications
Pre-heat coils

McQuay Parts Cross-Reference Service

Legacy Brand Parts Support

Since McQuay acquired several HVAC brands over the years, we maintain comprehensive cross-reference capabilities:

Singer PTAC → Current McQuay Parts:

Type 45 series → Applied Comfort 16 series
Control systems → Updated digital controls
Motors → Current efficiency standards

AAF/Herman Nelson → McQuay Parts:

ENR series → Current models
PNES series → Applied systems
Series 16 → Applied Comfort replacements

Climate Control → McQuay Parts:

Various models supported
Complete cross-reference available

Remington → McQuay Parts:

EA/ES series → Current equivalents
K series → Applied models

Obsolete Parts Solutions

When original McQuay parts are no longer manufactured:

Direct Replacement Options:

300039309 → 300044132 (Compressor upgrade)
Mark III → Mark IV control boards (with compatibility kit)
Legacy thermostats → Digital universal controls

Upgrade Pathways:

B series → B+ control upgrades
Mechanical → Digital controls
R-22 → R-410A refrigerant conversions
Standard → High-efficiency alternatives

Where to Buy McQuay Parts – Your Questions Answered

Why Buy McQuay Parts from Air Distributors?

When searching “where to buy McQuay parts,” contractors and facilities managers choose Air Distributors because:

Factory Authorization: We’re not just a parts supplier – we’re factory authorized by Daikin Applied (current McQuay manufacturer), ensuring you receive genuine OEM McQuay parts with full warranty coverage.

Technical Expertise: Our staff receives factory training on McQuay systems, enabling accurate part identification and technical support that generic parts suppliers cannot match.

Complete Inventory: We stock thousands of McQuay parts from small components like capacitors to major assemblies like compressors, reducing your supplier complexity.

Same-Day Shipping: Orders placed by 2 PM EST ship the same day, getting you back in service faster than competitors who may take 2-3 days to process.

Competitive Pricing: As a factory authorized distributor, we offer true wholesale pricing without the markups associated with retail parts suppliers.

Part Identification Made Easy

Can’t Find Your McQuay Part Number? Our technical team can help:

Send Photos: Email clear images of the failed component
Provide Unit Info: Model number and serial number from nameplate
Describe Function: What the part does and how it failed
Get Expert Help: We’ll identify the correct replacement within hours

Common Part Locations:

Control Boards: White sticker with part number on circuit board
Motors: Metal nameplate on motor housing showing HP, voltage, and part number
Compressors: Metal tag attached to compressor body or stamped on shell
Coils: Tag on header or frame indicating specifications

McQuay Parts Availability & Lead Times

Inventory Status & Lead Times

In-Stock McQuay Parts (Ship Same Day):

Control boards and electronic components: 85% availability
Common motors and capacitors: 90% availability
PTAC parts and accessories: 80% availability
Filters, thermostats, and controls: 95% availability

Special Order McQuay Parts:

Factory orders: 7-14 days typical
Obsolete parts sourcing: 2-4 weeks
Custom coils and assemblies: 3-5 weeks
Emergency expediting available

Regional Warehouse Network:

Next-day delivery from regional stock
Reduces lead times on special items
Broader inventory access

Volume Discounts Available:

Contact for bulk project pricing
Contractor account benefits
Quantity discount programs

Payment Options

Flexible Payment Terms:

Credit card (immediate processing)
Net 20 (approved commercial accounts)
ACH/Wire transfer
Purchase orders accepted
Contractor accounts available

McQuay Control Board Replacement Expertise

Most Common Control Board Issues

McQuay control board replacement represents a significant portion of our parts business. Common scenarios include:

Environmental Failures:

Humidity damage in coastal applications
Power surge damage during storms
Corrosion from harsh environments
Age-related component degradation

System Integration Problems:

Compatibility issues with newer components
Communication errors with building controls
Programming corruption or loss
Sensor interface failures

Control Board Replacement Process

Step 1: Proper Identification

Locate part number on existing board
Note revision letters (important for compatibility)
Check unit model/serial for verification
Document wire connections before removal

Step 2: Compatibility Verification

Ensure electrical compatibility (voltage, amperage)
Verify communication protocols
Check sensor compatibility
Confirm mounting requirements

Step 3: Professional Installation

Follow ESD (electrostatic discharge) precautions
Use proper tools and techniques
Verify all connections
Test system operation thoroughly

Our Support:

Pre-installation consultation
Wiring diagrams provided
Technical phone support during installation
Post-installation troubleshooting

Industry Applications

Healthcare Facilities

Hospitals and medical facilities depend on reliable McQuay parts for critical HVAC systems:

Critical Applications:

Operating room climate control
Patient room comfort systems
Laboratory environmental control
Pharmaceutical storage areas

Our Healthcare Support:

24/7 emergency parts availability
Critical spares program consultation
Planned maintenance parts kits
Regulatory compliance documentation

Educational Institutions

Schools and universities with McQuay equipment need reliable parts supply:

Common Needs:

Summer maintenance projects
Budget-conscious solutions
Seasonal part requirements
Energy efficiency upgrades

Educational Support:

Budget-friendly programs
Maintenance planning assistance
Bulk order coordination
Technical training resources

Hospitality Industry

Hotels with extensive McQuay PTAC installations require:

High-Volume Parts:

Guest room PTAC components
Common area system parts
Kitchen equipment components
Maintenance consumables

Hospitality Services:

Property management accounts
Renovation project support
24/7 emergency availability
Guest satisfaction focus

Commercial Real Estate

Office buildings and retail facilities need:

Ongoing Support:

Preventive maintenance parts
Emergency repair components
System upgrade options
Energy efficiency solutions

Technical Support & Services

Expert Technical Assistance

Our factory-trained technicians provide:

Part Identification Services:

Photo analysis for unknown parts
Cross-reference from legacy numbers
Compatibility verification
Alternative part suggestions

Application Support:

Proper part selection guidance
Installation best practices
Troubleshooting assistance
System optimization advice

Documentation Services:

Parts manuals and diagrams
Installation instructions
Technical bulletins
Warranty information

Value-Added Services

McQuay Parts Kits:

Seasonal maintenance packages
Common repair bundles
Preventive maintenance sets
Emergency spares recommendations

Inventory Management:

Critical parts analysis
Planned maintenance coordination
Obsolescence notifications
Stock level recommendations

Training & Education:

Parts identification training
Common failure analysis
Best practices documentation
Technical resource library

Quality Assurance & Warranty

OEM Quality Guarantee

Why Genuine McQuay Parts Matter:

Exact Fit & Function:

Engineered to original specifications
No modifications required
Maintains system efficiency
Preserves equipment warranties

Tested Reliability:

Factory quality control
Performance validation
Safety certifications
Environmental compliance

Long-Term Value:

Extended equipment life
Maintained efficiency ratings
Reduced service calls
Lower total ownership cost

Comprehensive Warranty Coverage

Standard McQuay Parts Warranty:

1-year manufacturer warranty
Covers material defects
Workmanship guarantee
Installation date activation

Where can I buy parts for Daikin/McQuay units?

Parts are available from Factory Authorized Distributors. In most cases, parts found on ecommerce sites are not Factory Authorized, but resellers. Resellers cannot provide the best pricing or support for the products that a Factory Authorized Distributor can. Air Distributors Company had been a Factory Authorized Distributor since 1988.

Are all McQuay parts now made by Daikin?

Yes, since Daikin acquired McQuay in 2006, all parts are now manufactured under Daikin Applied standards. This ensures consistent quality while maintaining compatibility with legacy McQuay equipment.

How do I find parts for my old Singer or AAF unit that's now under McQuay?

We maintain complete cross-reference data for all brands acquired by McQuay, including Singer, AAF, Herman Nelson, Climate Control, and Remington. Call us with your unit model number for accurate cross-referencing.

What if my McQuay part number is obsolete?

We can sometimes find suitable replacements for obsolete parts. Often there are direct substitutes or upgrade paths available. Our technical team can help identify alternatives, if they exist, that maintain system performance.

Can you help me identify a part if I don't have the part number?

Absolutely. Email us clear photos of the part along with your unit’s model and serial number. Our technical experts can typically identify parts within a few hours.

Do you offer overnight shipping for emergency repairs?

Yes, we offer various expedited shipping options including overnight or 2 day delivery on items in our stock or factory stock. Emergency situations receive priority processing.

How long are McQuay parts typically kept in production?

Daikin Applied typically supports parts for 10-15 years after equipment discontinuation. Beyond that, we help source alternatives or upgrade paths. It really depends on the type of equipment.

Can you provide parts for very old McQuay equipment?

We maintain extensive cross-reference data and sources for obsolete parts. In a lot of cases, parts are discontinued, but will have remaining stock.

Why Air Distributors for McQuay Parts?

36 Years of McQuay Expertise

Since 1988, we’ve been the region’s trusted source for McQuay parts:

✓ Factory Authorized Status – Direct manufacturer relationship
✓ Extensive Inventory – Thousands of parts in immediate stock
✓ Technical Excellence – Factory-trained support staff
✓ Cross-Reference Mastery – Legacy to current part conversion
✓ Competitive Wholesale Pricing – True distributor rates
✓ Same-Day Shipping – Fast response to urgent needs
✓ Complete Warranty – Full manufacturer backing

Serving the Region Since 1988

To request a quote or parts info, use the form at top right. Be sure to include the following info for parts identification:

Part Number (if known)
Unit Model Number (from nameplate)
Serial Number (for vintage verification)
Part Description (function and location)
Quantity Required

The Air Distributors Difference

When you need McQuay parts, experience matters. Our combination of inventory depth, technical expertise, and customer service has made us the preferred supplier for contractors and facilities managers throughout the region.

From emergency breakdowns to planned maintenance, from single components to complete system rebuilds, we’re your trusted partner for genuine McQuay parts and expert support.

Call us today at 800-866-1210

Contact Us

Got a question, or need more info on the products listed on this page? Use the contact form below and someone will respond during regular business hours.