Honeywell HCE 60 - Manual (Page 13)

Installation
11
Wall installation
Four 4.2 mm holes for installation are located on the storey controller.
Dimensions of storey controller in mm
324
335
ø4.2
82
65
Note the 60 mm installation height of the storey controller! If
the storey controller is installed at a severe angle, the trans-
former must be on top to allow for ventilation.
► Mark, drill and insert plugs into fastening holes.
► Screw on the storey controller.