I have been asked to size a coil, with no latent loads.
The air conditioning unit is serving a switch gear room, in re circulation mode with no people. So, no latent loads. The on coil conditions are 23.8/7.7 and off coil at 13.7/2.5
The RH is close to 0! Is this practical?

On plotting the SHR with the above conditions, the coil ADP shows sub 0 values. Is this process achievable, or should I doubt their heat load calculations?
HAP results.jpg