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VAV-05 · VAV / zone

VAV reheat valve pegged but zone still cold

Reheat valve has been at 100% but the zone temp is still below the heating setpoint.

Capacity-basedBAS trendsMedium effort

What does VAV-05 mean?

Reheat valve has been at 100% but the zone temp is still below the heating setpoint.

Why does it matter?

Lost heating capacity at the box. Often hot-water flow doesn't reach the coil, the coil is fouled, or the box is undersized for current load.

What should you do?

Check HW pressure at the box, verify the local balancing valve isn't closed off, and look for coil air-binding.

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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