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B2-20
TCHAIN
L020200093
The B2-20 evaporator coil assembly is the internal heat absorption core customized for TCH12B rooftop air conditioning units, widely installed on 12-meter intercity coaches, tourist buses and large city transit buses. It absorbs heat from circulating cabin air to realize refrigeration, its long strip design perfectly fits the internal installation space of TCH12B large bus air conditioners.
Blue Hydrophilic Anti-Condensation Fins
Surface covered with blue hydrophilic coating aluminum fins. It quickly drains condensed water generated during cooling operation, avoids frost accumulation under long-hour low-load operation, prevents water dripping into passenger seats and keeps stable heat exchange efficiency.
Seamless Copper Tube High Thermal Conductivity Structure
Adopts thickened seamless copper tubes with precision mechanical tube-expanding craft, tightly combined with aluminum fins to maximize heat transfer area. Fast heat absorption speed, quickly reduces cabin temperature even under high-temperature outdoor environment.
Vibration Resistant Welding Pipeline
Copper pipelines adopt full penetration welding technology, with smooth bending transition to relieve vibration stress generated during long-distance driving. Effectively prevent pipeline crack and refrigerant leakage caused by bumpy road conditions.
100% High-Pressure Nitrogen Leakage Test
Each finished evaporator core passes strict nitrogen pressure tightness inspection before leaving factory, eliminate hidden leakage troubles, lower the after-sales maintenance cost of bus fleets and repair shops.
Original Size Plug-and-Play Installation
All outline dimensions, pipe interface positions and mounting dimensions are fully consistent with original TCH12B specifications, no cutting, bending or secondary modification required during replacement, greatly shorten on-site overhaul time and reduce vehicle downtime.
TCH12B 12m large bus rooftop air conditioning units
Long-distance intercity tourist coach AC evaporator replacement
Large public transport city bus air conditioner routine maintenance
Bus OEM factory original matching evaporator spare parts
Global repair shop one-stop heavy-duty coach HVAC spare parts supply
Backed by 39 years of professional bus HVAC manufacturing experience, TCHAIN supplies fully inspected evaporator coils compatible with TCH12 series 12-meter bus air conditioners. We support bulk wholesale, dimension drawing technical support and fast global delivery to cut your fleet operation and maintenance cost.
