DC powered chiller units for cold chain transport-Kingclima . Dec 16, 2021 · TR-110D van fridge unit dc powered driven (12 volt or 24 volt for KINGCLIMA) 2021n van chiller units 2021n van freezer units According to customers’ demands and cargo vans size, we have van refrigeration systems for 5-25m³ van body apply for small to big cargo vans.