Durastar DRADL18F2A & DRA1U18S2A 18,000 BTU 20.0 SEER2 Low Static Ducted Heat Pump System - R454B

Durastar DRADL18F2A & DRA1U18S2A – 18,000 BTU R‑454B Low Static Ducted Mini‑Split Heat Pump System
The Durastar DRADL18F2A and DRA1U18S2A mini-split system delivers 18,000 BTU of efficient, quiet comfort through a low static ducted indoor design. Perfect for discreet horizontal or vertical installations, this ENERGY STAR®-qualified system features R‑454B refrigerant, inverter technology, and reliable cold-climate operation down to –13 °F.

General Information
System Type: Low static ducted mini-split heat pump system (indoor & outdoor)
Indoor Model: DRADL18F2A
Outdoor Model: DRA1U18S2A
Capacity: 18,000 BTU Heating & Cooling
Room Size: Ideal for medium to large zones requiring ducted airflow
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant: R‑454B, low‑GWP, pre‑charged (liquid 1/4″, suction 1/2″)

Key Features
• Low Static Pressure: Up to 0.4 in. WC for ducted applications
• Flexible Installation: Horizontal and vertical mounting options
• Cold-Climate Performance: Heating and cooling down to –13 °F
• External Drain Pump: Included for horizontal installs
• Inverter Technology: Smooth and energy-efficient operation
• Quiet Operation: Indoor sound level as low as 35 dB(A); outdoor 54 dB(A)
• Smart Modes: Turbo, ECO, Sleep, programmable via wired DRSTAT101 thermostat
• Base Pan Heater: Factory-installed for winter performance
• Durable Protection: Anti-corrosive Golden Fin coil coating
• Moisture Removal: Up to 76.0 pints/day
• Safety Ready: A2L refrigerant leak detection system

Specifications (Rated Conditions)
Cooling Capacity (Rated/Range): 17,000 BTU | 7,000 – 19,000 BTU
Heating Capacity (Rated/Range): 20,000 BTU | 5,500 – 22,000 BTU
SEER2 / EER2: 20.0 / 12.5
HSPF2: 10.5
COP (47°F / 17°F / 5°F): 3.47 / 2.60 / 2.20
Airflow (Indoor - CFM): 441 (Low) to 600 (Turbo)
Operating Temp Range (Cooling/Heating): –13 °F – 122 °F / –13 °F – 75 °F
Electrical: 208/230 V • 1‑Phase • 60 Hz
Indoor Unit Dimensions/Weight: 34-11/16″ × 26-9/16″ × 8-5/16″ • 54.5 lb
Outdoor Unit Dimensions/Weight: 35-1/16″ × 13-7/16″ × 26-1/2″ • 92.6 lb

Included Components
• DRADL18F2A low static ducted indoor unit
• DRA1U18S2A outdoor condenser
• Programmable wired thermostat (DRSTAT101)
• External drain pump (horizontal installation only)
• Built-in base pan heater

Ideal For
Contractors, builders, and homeowners seeking a hidden, quiet ducted system for efficient zoned comfort. The DRADL18F2A & DRA1U18S2A system offers higher capacity performance, smart control, and year-round reliability.