Nortec NHPC User Manual

Troubleshooting | 78
No. Display
Message
LED System Detected Cause Corrective Action(s)
W46 RH High Warning
RH higher than
high RH setpoint
1 Setpoint higher than
RH alarm setting
1 If the humidifier is still
operating then check and
adjust setpoints.
W47 RH Low Warning
RH Lower than
low RH setpoint
1 Humidifier not running 1 Check why humidifier is
not running and put it
into operation.
2 Setpoint lower than RH
low alarm setting
2 Check and adjust
setpoints.
W49
Wrong Cylinder
installed
Cylinder is not
recognized
1 Warning reserved for
future development
1 Contact factory for
instructions on
configuring software.
E50 Modbus Timeout Red No Modbus signal
1 Loose connection 1 Check connections and
polarity of wires.
2 Incorrect Modbus
address
2 Check that Modbus
address of humidifier
matches that of master.
3 Humidifier configured
for Modbus but not
connected to network
3 Configure controls
correctly in “Control
Setting” level of software
(see Operation Chapter).
4 Improper wire used 4 Use 120 Ohm impedance
shielded twisted pair
cable.
5 Noise preventing
humidifier from
detecting signal.
5 Eliminate source of noise
causing interference.

Nortec NHPC Specifications

General

Brand	Nortec
Model	NHPC
Category	Humidifier
Language	English