Daikin AWST (R-32) Air Handler & Coil
The Daikin AWST (R-32) series is a high-quality indoor air-handler and matched evaporator coil that’s optimized for R-32 refrigerant systems. Ideal for retrofit or new installations where space is limited and wall-mounting is required, this model offers precision control, durable construction, and modern refrigerant compatibility. At TopCare HVAC of Oakville, we provide full services: system design & sizing, professional installation, annual maintenance, and efficient repairs — ensuring your AWST unit delivers reliable comfort and performance for years to come.
Technical Specifications (Selected Summary)
Here are some of the highlighted specs from Daikin’s technical sheet for the AWST (R-32).
| Specification | Value / Notes |
|---|---|
| Nominal Capacity Range | 1.5 to 3 Tons (models 18, 24, 30, 36) |
| Electrical Supply | 208/230 V, 1-phase, 60 Hz |
| Multi-Speed Blower Motor | Full-load amps around 2.6 (for 18-24 model) |
| Coil Connections | Liquid ⅜″, Suction varies (⅝″ for smaller models, ¾″ for larger) |
| Cabinet Leakage | <2.0% at 1.0″ H₂O; <1.4% at 0.5″ H₂O |
| Compatible Installation | Wall-mount, flush or stud mount bracket included |
| Supporting Features | Adjustable TXV, aluminum coil, multi-speed motor, factory installed components |
Features & Benefits
Below are the key selling features and benefits of the AWST series (with relevant SEO / LSI keywords like “R-32 air handler”, “wall-mount air handler”, “high-efficiency indoor coil”, etc.):
R-32-Ready & A2L-Compliant Design
The AWST is specifically built for R-32 refrigerant systems, making it future-proof and compliant with modern HVAC refrigerant regulations.Fully Adjustable TXV (Thermal Expansion Valve)
Enables precise refrigerant metering for optimal cooling/heating performance and capacity modulation.Direct-Drive, Multi-Speed / ECM Motor
The blower uses a multi-speed direct-drive or ECM motor, allowing variable air volume for improved comfort, quieter operation, and better efficiency.All-Aluminum Evaporator Coil & Tight Cabinet Construction
• Aluminum tubing coils enhance corrosion resistance and longevity.
• Cabinet air leakage is less than 2.0% at 1.0 inch H₂O (ASHRAE 193 test) for superior efficiency.Space-Saving Wall-Mount Format
Designed for vertical wall- or stud-mounting. Ideal where floor space is limited or where retrofit is required.Versatility for Cooling or Heat Pump Systems
Compatible with air conditioning, heat pump indoor units, and matched outdoor components — making it a flexible choice for whole-home comfort.Service-Friendly Access & Design
Equipped with features to facilitate maintenance: accessible coil, service panels, standard size filters, factory-installed components.
Warranty & Registration
The AWST R-32 series comes with a 12-Year Parts Limited Warranty when properly installed and registered online within 60 days (except in jurisdictions like California, Québec, etc.).
Warranty eligibility requires correct installation, use of matched components, and annual maintenance by qualified professionals.
At TopCare HVAC, we handle registration on your behalf and ensure your installation is fully compliant with warranty conditions.
Installation, Maintenance & Repair (Oakville)
Professional Installation
Load-calculation to verify sizing and match to outdoor unit
Secure wall-mount bracket and install handler at optimum height for airflow & service access
Connect refrigerant lines, drain pan, wiring per spec
Commission system with correct refrigerant charge, airflow adjustments and controls calibration
Preventive Maintenance
Clean/replace filter regularly
Inspect and clean evaporator coil and drain pan
Check motor and blower operation and belt or drive system
Verify cabinet is sealed, check for air leakage
Perform airflow test, correct static pressure and duct calibration
Repairs & Troubleshooting
Diagnose motor or blower faults, check ECM/multi-speed components
Check TXV operation, refrigerant charge and matching with outdoor unit
Inspect coil corrosion, air leakage, condensate issues
Ensure matched outdoor unit compatibility and refrigerant type (R-32)
Frequently Asked Questions (FAQs)
Q: Why choose the AWST R-32 handler instead of older models?
Because it’s optimized for the R-32 refrigerant era (lower GWP), has modern features like multi-speed blower, and a tight cabinet reducing leakage—all contributing to higher efficiency and reliability.
Q: Is this suitable for a retrofit into an older system?
Yes—its wall-mount format and standard coil connections make it versatile for retrofits, provided the outdoor condenser is matched and refrigerant lines are properly sized and charged.
Q: What size model should I choose?
Use a proper heating/cooling load calculation. The AWST comes in 18, 24, 30 and 36 nominal sizes (1.5 T to 3 T). Match to your building’s needs and the matched outdoor unit.
Q: How important is proper airflow and cabinet sealing?
Very important—cabinet leakage and poor airflow reduce system efficiency and reliability. The AWST’s tight cabinet (<2% leakage) helps preserve performance.
Q: What’s the maintenance interval?
At minimum annually, more often in heavy use or dusty environments. Regular service preserves comfort, efficiency, and warranty eligibility.
Why Choose TopCare HVAC for AWST R-32
Certified Daikin system installers for indoor units and coils
Serving Oakville, Burlington, Milton, Mississauga
Transparent pricing, no hidden fees, financing options
Maintenance plans and swift repair support
Expertise in matched refrigerant systems, A2L/R-32 transitions, and indoor-component upgrades
Call to Action
Ready to upgrade your indoor HVAC component with the Daikin AWST R-32 Air Handler & Coil? Contact TopCare HVAC of Oakville today for a free quote, site consultation, or to schedule installation or service. We’ll size the system, install with precision, and support your long-term comfort and efficiency.
