Nortec NH Series User Manual
Page 49
10-20
Page 42
2008-08-28
Table 4. Status Messages with LED State
NHTC Display Message
LED state
System Action
Idle
None
Unit is made idle.
Humidifying
GRN (after steam
production starts)
The unit has closed the contactor and is sending
current to the cylinder to humidify.
MANUAL DRAIN: ON
YEL (blink)
The drain valve is activated.
SAFETY LOOP; OPEN
GRN
(blink)
Steam production stopped.
LEVEL SENSOR; ON
None
Deactivates the fill valve to prevent overfilling.
KEEP WARM ACTIVATED
None
Keep Warm feature activated, it has closed the
contactor to warm the water.
W19: Cylinder spent
YEL, GRN
The electronics allow the cylinder to be reset up
to four times before locking out the humidifier.
E19: Cylinder spent
YEL, RED
Humidifier interrupts operation and the fault relay
is activated.
FOAM: FULL TANK FLUSHING
None
The unit will initiate a flush of the cylinder and
resume operation.