STULZ Ultra-Series Humidifier Controller
(August, 2013) 11
demineralized water supply piping to sense water quality
entering the Humidifier. The length of control cable provided
is 10 feet long. Do not cut the control cable or add to its
length because a change in wire resistance will affect the
sensor's calibration. Because the conductivity circuit is
sensitive to electromagnetic interference, the control cable
should not be run near high voltage wires. Connect the
leads from the conductivity sensor to the designated
terminal positions in the controller as shown in the electrical
drawing.
Remote On/Off
3.3.6
A remote on/off control device may be an On/Off switch,
thermostat or a humidistat. If customer provided, the remote
On/Off control contacts must be sized appropriately. The
Remote On/Off contacts must have a minimal rating of 24
VAC. Refer to the electrical drawing(s) included with the
unit for wiring details.
Remote Alarm Signal Contacts
3.3.7
The Summary Alarm and Custom (user configured)
Alarm(s) have dry contact relay interface terminals inside
the controller. The customer may connect a 2 conductor,
alarm signal cable to each relay for remote annunciation of
alarm conditions. The alarm contact positions are
NO/C/NC, rated at 250VAC / 8 Amps.
Water Leak Detector
3.3.8
Optional remote water detector(s) are normally placed on
the floor or in a customer supplied drain pan located
beneath the Humidifier(s). The detector(s) may be secured
using double sided tape or cable ties with mounting pads.
Prepare the surface before applying the tape. Apply tape to
the bottom of the detector and secure it in place.
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