Durastar DRADH18F2A & DRA1H18S2A 18,000 BTU 18.4 SEER2 High Static Ducted Sirius Heat Heat Pump System - R454B

Durastar DRADH18F2A & DRA1H18S2A – 18,000 BTU R‑454B High Static Ducted Mini‑Split Heat Pump System
The Durastar DRADH18F2A and DRA1H18S2A mini-split system provides 18,000 BTU of advanced ducted heating and cooling with Sirius Heat™ performance down to –22 °F. Built for high static pressure applications and extended ductwork, this ENERGY STAR®-qualified system uses R‑454B refrigerant, a variable-speed inverter compressor, and smart thermostat control to deliver quiet, reliable comfort in extreme conditions.

General Information
System Type: High static ducted mini-split heat pump system (indoor & outdoor)
Indoor Model: DRADH18F2A
Outdoor Model: DRA1H18S2A
Capacity: 18,000 BTU Heating & Cooling
Room Size: Ideal for large or multi-zone ducted applications
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant: R‑454B, low‑GWP, pre‑charged (liquid 1/4″, suction 1/2″)

Key Features
• Sirius Heat™ Technology: Heating and cooling down to –22 °F
• High Static Pressure: Up to 0.8 in. WC for long duct runs
• Inverter Technology: Efficient variable-speed compressor
• Quiet Operation: Indoor sound as low as 28 dB(A); outdoor 58 dB(A)
• Internal Drain Pump: Integrated for horizontal installations
• Smart Modes: Turbo, ECO, Sleep, programmable via DRSTAT101 thermostat
• Base Pan Heater: Factory-installed for winter readiness
• Golden Fin Coils: Anti-corrosive coating for durability
• Moisture Removal: Up to 50.7 pints/day
• Safety Ready: Built-in A2L refrigerant leak detection system
• Flexible Mounting: Supports horizontal and vertical installation

Specifications (Rated Conditions)
Cooling Capacity (Rated/Range): 17,500 BTU | 4,000 – 20,600 BTU
Heating Capacity (Rated/Range): 19,500 BTU | 5,400 – 23,000 BTU
SEER2 / EER2: 18.4 / 12.0
HSPF2: 11.1
COP (47°F / 17°F / 5°F): 3.60 / 2.89 / 2.10
Airflow (Indoor - CFM): 441 (Low) to 706 (Turbo)
Operating Temp Range (Cooling/Heating): –22 °F – 122 °F / –22 °F – 75 °F
Electrical: 208/230 V • 1‑Phase • 60 Hz
Indoor Unit Dimensions/Weight: 39-3/8″ × 29-1/2″ × 9-5/8″ • 79.8 lb
Outdoor Unit Dimensions/Weight: 35-1/16″ × 13-7/16″ × 26-1/2″ • 99.9 lb

Included Components
• DRADH18F2A high static ducted indoor unit
• DRA1H18S2A Sirius Heat™ outdoor condenser
• Programmable wired thermostat (DRSTAT101)
• Internal drain pump
• Built-in base pan heater

Ideal For
Contractors and homeowners seeking a powerful, energy-efficient ducted HVAC system for cold climates. The DRADH18F2A & DRA1H18S2A system offers premium performance, quiet operation, and smart zone control for large or complex installations.