Nortec NHRS 010-090, Installation And Operation Manual

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37 | Start Up
c. Check for correct functioning of the monitoring equipment (external safety
network).
d. Set the desired humidity value on the humidity controller / humidistat.
e. Make sure no leaks are present.

The heating current switches on as soon as the humidity controller / humidistat
demands humidity. The yellow LED lights and steam is produced after a short delay
(approximately 5 minutes).
2. The operating status is displayed in the LED on the unit as follows:
Table 8: NHRS Operational Status LEDs
LED Action Meaning
Green Constant Unit Producing Steam
Yellow Flashing Major or Minor Service Due.
Red Flashing The Unit is trying to self-correct a problem.
Red Constant Insoluble Problem
NOTE: Relevant data will be displayed on the NHRS LCD display during normal operation and
when in fault
3. If the humidifier is equipped with the optional Remote Fault Indication, the operating
status will be shown as follows:
Table 9: Remote Fault Indication
Relay Description Notes
K1 Steam (N/O) Normally open
K2 Error (N/O) Normally open Or (N/C) Normally closed
K3 Service (N/O) Normally open Or (N/C) Normally closed
K4 Unit On (N/O) Normally open