Electric Refrigeration
RLF Series
NewIntegrated rooftop bus HVAC system for coach and transit applications.
The RLF Series is an integrated rooftop bus HVAC system designed for coach and transit applications, offering significant weight reduction and reliable performance.

Rooftop HVAC System for Coach and Transit
The RLF Series offers an integrated rooftop bus HVAC system for coach and transit applications. It replaces existing roof-mount units with a unit that weighs 42% less and replaces rear-mount units without sacrificing reliability, performance, weight or cost.
Benefits
IntelligAIRE III ® Control System
Expanded CAN communications capability plugs directly into the J1939 network to make more information available. It eliminates the gateway module required between bus & unit controllers, reducing weight due to the elimination of harnesses. Features an increased number of I/O for system & component monitoring and eliminates the need for expansion modules external to the controller where multiple zones must be controlled independently. Includes a programmable pre-heater function with real time clock activation to start pre-heat when the system is off.
S391/S616 Screw Compressors (Optional)
Features an exclusive oil management system for increased reliability, fewer moving parts than reciprocating compressors, and lower noise levels and vibration. Offers programmable capacity control for fuel savings.
Electronic Energy Management System (Optional)
Provides fuel savings with X426, X430, and X640 reciprocating compressors. Programmable electronic capacity control reduces the parasitic load on the engine.
Unit Specs
Refrigerant
| Type | R-134a or R-407C |
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