Nilan reserves the right to alter these instructions without prior notice Page 4 af 25Power supply Power supply including safety switch must be installed by an authorized electrician.The Comfort-unit must be connected according to the attached electrical chart.The unit is delivered with 1m test cable for the CTS 602 panel. The panel should be connected tothe CTS 602 control in the unit with cable type 2x2x0.25mm2 twisted in pairs. (Maximum length50m).The CTS 602 panel must be placed dry and frost-proof. The panels’ integrated feeler prevents fur-ther cooling of the building if the primary heat-supply stops by stopping the ventilation if the panelfeeler gets below a specific value. (Factory setting is 10°C; the value can be set from 1-20°C.)CTS 602 controlIf a water heating element is installed in the system, the regulation vent must be connected electri-cally as described in the enclosed wiring diagrams.