26IGBT D IMMER RACKS Installation& OperationI NSTALLING D IMMER M ODULESCapio Plus Dimmer Modules are easy to slide in place without tools. Please do not insert modules until your installation is ap provedby an Lightolier Controls® technician.1. Make sure that the circuit breakers are off and their latch is pushed to the right.2. Insert the edges of the dimmer module circuit board into the right and left guides ( Figure 22 ).3. Push the module in until the alignment pins at the back seat firmly into the connector on the dimmer back plane, and the dimmer isseated firmly against the metal frame of the rack.4. Slide the circuit breaker handles and their latch to the left, and into the slot in the frame of the rack.: If you are installing modules of different types, please consult system drawings for the placement order. Modules of differentpower ratings are keyed to prevent improper insertion.: To remove modules, turn circuit breakers off and slide the latch to the right before pulling module straight out.Installing Dimmer and Control ModulesFigure 22: Dimmer Module InsertionDimmer cardentering guideCircuit breakersCircuit breaker latchDo not energize the CapioPlus IGBT Dimmer Rack until the wiring has been approved by a technician from Philips Lighting Controls. Contact TechnicalSupport at +1-866-526-2731 to arrange for approval. Refer to page 53.