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VAV-03 · VAV / zone

VAV reheat valve leaking

Reheat valve is commanded closed but discharge-air temperature is rising above supply-air temperature.

Capacity-basedBAS trendsMedium effort

What does VAV-03 mean?

Reheat valve is commanded closed but discharge-air temperature is rising above supply-air temperature.

Why does it matter?

Same waste mechanism as a leaking heating valve at the AHU, but at every zone instead of one central place. The aggregate $ across a building can rival a leaking central coil.

What should you do?

Replace the reheat valve cartridge. Check that the actuator is travelling full close. Inspect the HW supply for over-pressurized branch flow.

How Energy Agent prices a finding

Written by Pelorus Engineering · Brent Waluzak, P.E. (FL), President, Pelorus EngineeringLast updated
Estimate it

What is heating and cooling at the same time costing?

Estimate the energy spent fighting yourself.

1 ton of cooling is 12 kBtu/h.
Enter a repair or controls-change cost to see the simple payback.
Avoidable cost per year—Energy —Simple payback Enter a cost to fix to see the payback.

    Cooling that only exists to cancel heating (and vice versa) is priced on both sides: chilled water at your kW/ton and rate, heat at your boiler efficiency and gas price, for the hours the overlap lasts. Energy Agent finds the overlap in valve and coil trends.

    Screening estimate. Energy Agent measures the real fault hours and load from your trends and prices them at your tariff.

    Request a demoSee how Energy Agent prices a finding

    Screening-level estimates; confirm with measurement and verification before capital commitment.

    More vav / zone faults

    All 7 vav / zone rules →

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    Send twelve months of interval data and a BAS trend export. Energy Agent returns a ranked list of what is wasting money, what each item is worth per year at your tariff, and what to do about it.

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