Base platform with R-134a refrigerant
A complete range of low-weight, high-performance roofmount HVAC systems for coach and transit applications. Featuring an updated design that delivers improved quality and reliability while offering new features and significant enhancements.
System Cooling Capacity
- BTU/hr: 92,000
- kW: 30 kW
- Kcal/hr: 23,183
- Rated Capacities are at the following conditions: Outside: 35°C/95°F; Inside: 27°C/80°F DB, 19°C/67°F WB
System Heating Capacity
- At 30 Lt./Min.(8 GPM) coolant flow rate and 55K (100°F) temperature differential between return air and coolant.
- BTU/hr: 115,000
- kW: 33.7
- Kcal/hr: 29,040
Evaporator Airflow
- (0 in. water column external static pressure)
- High Speed: 3200 ft3/min
- Medium Speed: 1900 ft3/min
- Low Speed: 1350 ft3/min
Refrigerant
Power Consumption @ 27 VDC
Weight
Compressor Weight with Clutch (approximate)
- S391: 147 lbs (67 kg)
- S616: 171 lbs (77 kg)
- X426/X430: 115 lbs (52.2 kg)
Delivers Quality & Reliability
- 10% weight reduction
- Welded frame
- Reduced number of potential leak points
- No sealants used in design
- Stiffer construction for improved unit/bus sealing
- 10% more condenser airflow
- 5% more evaporator airflow
- Access all servicable items from inside bus
- Easy-to-install one-piece design
- IntelligAIRE® III microprocessor controller with CANBUS communications
- Designed to fit CNG, hybrid and diesel buses
One Platform for All Your Needs
- Water Tight Design: Harness interface points use water-tight sealed fittings; No water ingress due to high/low pressure differentials; One piece welded frame; No rivets or sealant
- New Side-Access Covers: Gull wing doors eliminate prop rods; Improved latching, sealing, access, and aesthetics
- Unit Controls in Conditioned Air Space: Improved environmental protection; Improved access and serviceability
- New Motorized Water Valve: Improved temperature control in re-heat and heating modes; Eliminates water hammer
- New Electronic Capacity Control: Capacity can be reduced when not needed for fuel savings on cooler days; Improved temperature balance on Arctic buses so capacity can be shifted from unit to unit as needed
More Standard Features Than Ever
- IntelligAIRE® III Control System: Expanded CAN communications capability; Plugs directly into J1939 network to make more info available; Eliminates the gateway module required between bus & unit controller; Eliminates the need for expansion modules external to the controller where multiple zones must be controlled independently
- High-Performance R-407C or R-134A: Environmentally safe alternatives with zero ODP
- The Thermo King X430 Compressor: Engineered exclusively for transport applications; Built for extended service life; Field repairable
