DriSteem Vapor-logic3, Инструкция по установке и эксплуатации

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70
Operation
Operation:
Troubleshooting guide
Troubleshooting guide.
Problem
number Problem
Possible cause Action
• “Thunder”-type noise
coming from tank
during refill
• Contactor noise
• Fill valve noise
• Unit operating but
fails to meet required
humidity output
• Normal on larger units, caused by the
cold fill water collapsing steam in the
tank. Reduce kPa (minimum of 172 kPa)
if inlet water pressure is too high.
• Contactor normally makes a “clunk” as
it pulls in. A continuous chattering noise
is not normal and is symptomatic of a
failing contactor or malfunctioning
controls. Replace contactor or
troubleshoot the control system.
• A clicking sound as fill valve opens or
closes and a hissing sound during fill are
normal. A slamming sound as fill valve
closes is “water hammer” and can be
minimized by installing a shock arrester.
• A loud buzzing sound indicates poor
alignment of valve stem. Replace valve.
• Unit undersized; replace with a larger
unit or add additional humidifier.
• Skimmer rate is too high.
• If drain valve will not close fully,
determine the cause and clean, repair or
replace as needed.
• If drain pipe water seal is allowing steam
to go down the drain, repair as needed.
• If there is an improper water seal height,
increase to recommended height. (See
humidifier tank manual.)
• If there is excessive internal steam
pressure, determine the cause of the high
pressure (e.g., high duct static pressure,
undersized orifices in dispersion tubes,
water, or crushed vapor hose) and repair
as required.
• Replace leaking gasket or vapor hose.
• Recalibrate if controls are out of
calibration.
• If fill valve is stuck open, repair or
replace.
• If zone valve will not open, repair or
replace.
31
32
Noisy operation
Humidity below desired
level
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VL3-IOM-0301-METRIC.pdf 74 11/19/2009 9:22:40 AM