Steam Distributors - Nortec NHTC Installation And Operation Manual

Symptom
Humidifier has faulted or has
a warning

Steam Distributors

Symptom
Distributor spitting out water
Condensation in duct
Cause
5 Capacity has been manually
limited
6 Low conductivity water
1 Software has detected an
abnormal condition
Cause
1 Distributor not level
2 "P" Trap too close to distributor
3 Condensate line not sloped
sufficiently
4 Trap blocked
5 Condensate line double trapped
6 Steam line not insulated
1 Installation clearances not
observed
2 Design conditions changed
3 High limit not functioning
4 Air proving not installed or not
working
5 Improper location of high limit
Corrective Action(s)
5 Check Manual Capacity on status
screens. Adjust "Manual Cap" in the
"Setting" submenu of the "Control
Setting" menu if necessary.
6 Check if W12: Cylinder Max Level is
displayed on the humidifier's display. If
operated on low conductivity water it
may take several hours for the
NHTC/PC to reach full output capacity.
This is normal. During this time the
humidifier will not perform any drains
and the conductivity of the water in the
cylinder will increase.
1 Refer to table 8 troubleshooting
warnings and faults.
Corrective Action(s)
1 Use support at end o distributor to
ensure it is level.
2 "P" Trap must be a minimum of 12 in
(30 cm) below the distributor to
ensure flow. Relocate if required.
3 Sufficient slope to insure flow is
required. Reinstall if required.
4 Check that water flows through trap.
Clear out if blocked.
5 Condensate lines must not have two
traps in sequence. This can cause an
air lock and prevent water draining.
6 If steam line is long condensate build
up could overload distributor
condensate port. Insulate line to
improve efficiency and install
additional condensate traps as
required.
1 Refer to distributor installation manual
for required clearances. Relocate
distributor if required.
2 Check supply air temperature and
humidity to determine if conditions
have changed.
3 Check setting and operation of high
limit. Replace if defective.
4 Check that the humidifier will only
operate when there is air moving in
the duct.
5 Check that high limit is installed where
it can detect high duct humidity.
Troubleshooting | 70