Replace the Cooling Controller

To replace the cooling controller, complete the steps in this chapter:

Required Tools and Materials

Tools and Materials

	Head lamp		T25 Torx security screwdriver
	Stepladder		Lint-free absorbent cloth
	Coolant (included with replacement part)		#2 Phillips screwdriver
	ChargePoint replacement part #CPE250-COOLING-CTRLR-F		T 20 Torx screwdriver

Before you Begin

Complete the following procedures:

1. Power Off the Station.

2. Remove the Top Rear Panel.

3. Remove the Middle Rear Panel.

4. Remove the Bottom Rear Panel.

5. Open the Power Module Holders (Ground Straps).

6. Open the Power Module Holders (EMI Shields).

Remove the Cooling Controller

1. Identify the cooling controller, located behind the protective foam edging on the middle frame shelf.

   

2. Remove each cable attached to the front of the cooling controller by pressing in on its tab and pulling out by hand (listed left to right):

   The CAN cables are interchangeable.

   

3. Remove the small pressure sensor tube (a) from the front of the heat exchanger by hand. Route the tube down through the grommet in the frame shelf. The tube remains attached to the controller.

4. Use a T20 Torx to remove the two screws attaching the controller to the frame shelf (b). Save the screws for reuse.

   

Replace the Cooling Controller

1. Align the new cooling controller against the bottom of the frame shelf. Use a T20 Torx to replace the two screws attaching the controller to the frame. Fasten hand-tight.

   

2. Route the small pressure sensor tube up through the grommet in the frame and reattach it to the heat exchanger by hand.

   Ensure the pressure sensor tube is completely seated and centered on the mount point so that air flow is not constricted. Poor installation can result in a false error alert.

3. Reattach all cables to the front of the controller.

4. Gently route the slack of all cooling controller cables back up through the grommet in the frame shelf, to keep them out of the way of the Power Modules.