Table 4. Status Messages With Led State - Nortec NH Series Installation Manual

NHTC Display Message
Idle
Humidifying
MANUAL DRAIN: ON
SAFETY LOOP; OPEN
LEVEL SENSOR; ON
KEEP WARM ACTIVATED
W19: Cylinder spent
E19: Cylinder spent
FOAM: FULL TANK FLUSHING

Table 4. Status Messages with LED State

LED state
None
GRN (after steam
production starts)
YEL (blink)
GRN
(blink)
None
None
YEL, GRN
YEL, RED
None
System Action
Unit is made idle.
The unit has closed the contactor and is sending
current to the cylinder to humidify.
The drain valve is activated.
Steam production stopped.
Deactivates the fill valve to prevent overfilling.
Keep Warm feature activated, it has closed the
contactor to warm the water.
The electronics allow the cylinder to be reset up
to four times before locking out the humidifier.
Humidifier interrupts operation and the fault relay
is activated.
The unit will initiate a flush of the cylinder and
resume operation.
10-20
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2008-08-28