Durastar DRAM18F2A & DRA1U18S2A 18,000 BTU 18.5 SEER2 Air Handler Heat Pump System - R454B

Durastar DRAM18F2A & DRA1U18S2A – 18,000 BTU R‑454B Multi-Position Air Handler Mini‑Split Heat Pump System
The Durastar DRAM18F2A and DRA1U18S2A mini-split system delivers 18,000 BTU of efficient, whole-home comfort with a versatile multi-position air handler and inverter-driven outdoor unit. Ideal for both residential and light commercial applications, this ENERGY STAR® system features R-454B refrigerant, flexible airflow options, and reliable cold-climate performance down to –13 °F.

General Information
System Type: Multi-position air handler mini-split heat pump system (indoor & outdoor)
Indoor Model: DRAM18F2A
Outdoor Model: DRA1U18S2A
Capacity: 18,000 BTU Heating & Cooling
Room Size: Ideal for medium to large spaces or whole-home applications
Operating Modes: Cool, Heat, Aux Heat, Dry, Fan, Auto
ENERGY STAR®: Yes
Refrigerant: R-454B, low-GWP, pre-charged (liquid 1/4″, suction 1/2″)

Key Features
• Multi-Position Flexibility: Vertical (up/down) or horizontal (left/right) installs
• Inverter Technology: Smooth, energy-saving operation
• Cold Climate Ready: Heating and cooling down to –13 °F
• Programmable Thermostat: DRSTAT101 included
• Quiet Operation: Indoor sound as low as 33 dB(A); outdoor 57 dB(A)
• Smart Controls: Multiple modes and auto airflow configuration
• Golden Fin Coating: Anti-corrosive coil protection
• Built-in Safety: A2L refrigerant leak detection system
• IAQ & Humidifier Ready: Ports for built-in IAQ and condensate switch
• Optional Electric Heat: Supports auxiliary heat kits (sold separately)
• Moisture Removal: Up to 86.1 pints/day

Specifications (Rated Conditions)
Cooling Capacity (Rated/Range): 18,000 BTU | 5,600 – 20,400 BTU
Heating Capacity (Rated/Range): 18,000 BTU | 5,500 – 21,800 BTU
SEER2 / EER2: 18.5 / 12.1
HSPF2: 9.8
COP (47°F / 17°F / 5°F): 3.60 / 2.60 / 2.30
Airflow (Indoor - CFM): 489 (Low) to 618 (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: 21″W × 17.5″D × 45″H • 104.7 lb
Outdoor Unit Dimensions/Weight: 35-1/16″W × 13-7/16″D × 26-1/2″H • 92.6 lb

Included Components
• DRAM18F2A multi-position air handler
• DRA1U18S2A inverter-driven outdoor condenser
• Programmable wired thermostat (DRSTAT101)
• Built-in base pan heater

Ideal For
Homeowners, remodelers, and HVAC professionals looking for a ducted, whole-home mini-split solution with flexible installation, quiet operation, and efficient performance in cold climates.