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Component to be inspected | Task | Frequency | Capable Party | ||
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Condensate drain lines and | Inspect and verify that: | Quarterly | Qualified personnel | ||
• There is no internal blockage |
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| of the drain line |
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| • Condensate can freely pass |
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| leaking |
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| • There is no blockage of the |
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| drain line that is external to the |
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| site drain |
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| Clean and clear debris as |
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| necessary. |
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Heat exchanger fans | Inspect and verify that the | Quarterly | Qualified personnel | ||
| following components are |
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| properly secured and operational: |
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| • | Fan |
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| • | Fan mounting |
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| • | Wiring harness |
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| • Power modules (located in the |
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| ECS cabinet) |
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Chilled water header drain pan | Visually check drains for internal | • | Monthly, if | Qualified personnel | |
and lines | and external blockage |
| staffed |
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| • | Quarterly, if |
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| not staffed |
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— | Conduct an operational check of | Annual | Qualified personnel | ||
| the external site drain using |
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| approximately 5 gallons of water |
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| (if possible) |
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Leak detection
The HP POD 20c includes six heat exchanger condensate sensors. Three sensors are located in the drain pans below each set of heat exchangers, and three sensors are located in the chilled water supply and return header drain pan tray.
Some amount of condensation water can always be expected in the heat exchanger drain pans. If an excessive amount of condensation water accumulates in a drain pan, an alarm is triggered and sent through the HP POD 20c ECS, which indicates a possible leak.
There should be no water in the chilled water supply and return header drain pan. The drain pan should always remain dry.
Leak isolation
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.
Periodic maintenance 62