How to Read Heat Exchanger Catalog Numbers

XR - 29 - 18 - 1 - 6 - 012

XR = Heat Exchanger Series; XR Modified Heat Pipe Core heat exchanger
29 = Approximate height of the heat exchanger (i.e., 29 = 29-in. high)
18 = Capacity in W/°F
1 = 115 V, 2 = 230 V
6 = 50/60 Hz
012 = UL Type