INSTALLATION
PHOTO #6
B.3. Double Unit Installation
Installation procedures are similar with the ones for the single unit. Each of the two evaporators is fed by one condensing unit.
Both single units installed in a double box are controlled by one electronic controller. The difference is made by the double number of power cables and air probe cables. The two frames to be installed by the control board are marked
#1. The other two frames to be installed on the back are marked # 2 (see PHOTO #8 page 12 and PHOTO #9, page 13). If the markings are lost or missing and you need to select the frames to be installed close to the controller, look for the ones with extra long cables. If the frames are installed improperly, the feeding cables will be short. Drill holes through the partition walls above the top of the frames. Run the cables with connectors through, and plug them according to the color codes. Protect the cables from the rough edges of the drilled holes into the partition walls.
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