by sarabMay 17, 2020 Heat Exchanger Description #HX-TCS2-9 Make: Chromalox Model: N/A MAWP: 150 PSIG @ 750F. 480V, 300kW, 6-3 ph. Make:Chromalox MAWP: 150 PSIG @ 750F. 480V, 300kW, 6-3 ph.