Hubbell ST, Руководство по эксплуатации и техническому обслуживанию

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Overheating. Temperature regulator
has lost its charge, self
contained valves only. Repair or replace per separate
O&M.
Ruptured tube(s) in
heating coil. Remove / replace heating coil.
Temperature regulator
needs adjusting. Adjust temperature regulator per
Section IV.
Circulator not operating. Repair or replace per separate
O&M.
Debris under seat of
temperature control
valve. Repair or replace per separate
O&M.
Capillary tube pinched
on temperature control. Repair or replace per separate
O&M.
Immediate loss of heating
capacity. Rib blown out of tube
side gasket. Remove heating coil and replace
gasket.
Capillary tube pinched
on temperature control. Repair or replace per separate
O&M.
Ruptured diaphragm on
temperature control
valve. Repair or replace per separate
O&M.
Defective steam trap. Repair or replace per separate
O&M.
Blockage in condensate
line. Clean blockage from condensate
line.
Loss of air pressure on
temperature regulator. Check air pressure to
temperature regulator. Verify
that it is within limits. Adjust as
necessary.
Excessive vibration. High rate of flow beyond
design conditions. Consult factory.
Under sized piping to the
unit. Re-pipe lines to unit using
proper sized lines.
Water hammer. Defective steam trap. Repair or replace per separate
O&M.
Undersized condensate
lines. Re-pipe condensate line using
proper sized lines.
Insufficient slope on
condensate lines causing
backup. Increase slope on condensate
lines.
* Red symptom indicates that equipment should be shut down immediately and cause of
malfunction corrected before unit is re-started or serious damage may result.
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