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These units were removed from a working environment that was upgraded recently. I wish they hadn’t as these things were bullet proof unless they got hit by lightning. I have 6 revision H, 10 Revision B, and 9 of the older revision B. They will be sold with revision H being sold first & then moving down to B then the older revision B, Whoever buys them first gets the newer ones. Programming specs are as follows.
Analog Inputs 1-Zone temp, 2-Warm/cool adj, 3-unused, 4-Dis air temp. Binary Inputs 1-Air flow interlock, 2-unused. Analog outputs 1-Damper, 2-Unused. Binary Outputs 1-Fan, 2-Htg stage 1, 3-Htg stage 2, 4-Unused, 5-Cooling stage 1, 6- Cooling stage 2.
As is, Non-returnable, Shipping to thelower 48 states only