HP 40C User Manual download pdf (Page 64)

Periodic maintenance 64

Component to be inspected Task Frequency Capable Party

—

Inspect for any water leaks and

replace the cylinder if necessary.

Inspect for blackened areas on the

cylinder and, if present, check the

condition of the electrodes. If

necessary, replace the cylinder.

Quarterly HP and certified

facilities personnel

—

Replace the cylinder. Annually HP and certified

facilities personnel

Leak detection maintenance

WARNING: To reduce the risk of electric shock or damage to the equipment, use extreme

caution when removing and replacing components that involve water around the electrical

equipment. There is great risk of electrical shock when water is used near electricity.

CAUTION: If a serious leak develops, shut down the POD immediately and isolate the chilled

water cooling system from the site. Contact HP immediately to initiate a field service call. Do not

attempt to repair the chilled water cooling system. Attempting to self-repair the chilled water

cooling system during the warranty or service contract period shifts all liability to you.

IMPORTANT: HP recommends shutting down the POD after a leak is detected. For more

information, see "Power down procedure" in the user guide.

Non-isolable leak detection

A non-isolable leak is a leak from the main supply line or the return header.

To repair a non-isolable leak:

1. Power down all IT equipment.

2. Re-direct the leaking water away from the IT equipment.

3. Repair the leak or contact HP if you are still within your service contract.

Isolable leak detection

An isolable leak is any type of leak that does not occur from the main supply line or the return header.

To repair an isolable leak:

1. Inspect the zone indicated on the ECS Status Overview screen. You might need to inspect each zone

condensate drain pan to determine the exact location of the leak.

2. Power down the IT equipment in the zone where the leak is located.

3. Determine the affected heat exchanger.

4. Close and danger tag the supply and return valves to the affected heat exchanger.

If the heat affected exchanger cannot be identified, close all the heat exchanger supply and return

valves in the affected zone and open one supply valve at a time to determine the location of the leak.

5. Repair the leak or contact HP if you are still within your service contract.

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HP 40C User Manual Page 64