A high-performance heater-A/C unit for big interior spaces, the R-4122 helps keep the sleeper comfortable in any climate. Available with optional sleeper controls and a four-way air diffuser. Available only in 12 VDC.
R-4122 Sleeper Heater and A/C Unit

Features & Specifications
BTUs
Heating – 30,573 BTU/Hr @ 100°F (8.9 kW @ 37.8°C) air temperature rise. Cooling – 19,246 BTU/Hr with 36°F (5.6 kW with 2.2°C) refrigerant temperature and 80°F wet bulb entering air.
Air Flow
283 CFM (481 m3/h)
Weight
28 lbs. (12.7kg)
Motor
Permanent magnet, three-speed
Current Draw
18 amps @ 13.6 VDC. 9 amps @ 27.2 VDC
Models
Heater/A/C R-4122-9P 12 VDC