13
ULTRA-SORB MODEL XV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Controls
CONTROL OPTIONS
CONFIRMING STEAM DISPERSION PANEL CONFIGURATION
The Ultra-sorb XV steam dispersion panel utilizes a built-in heat exchanger to
evaporate condensate generated in the humidifi cation process. For maximum
energy effi ciency, this requires a unique control sequence that operates a
2-position shutoff valve for the heat exchanger, in addition to a modulating
valve for humidifi cation control. A fl oat switch in the steam dispersion panel
header, along with control sequence timings assure effective condensate
management along with humidifi cation output based on demand.
Control options are described in Table 16-1.
CONTROL OPTION #1 - DRISTEEM CONTROL CABINET
The Ultra-sorb XV dispersion panel is provided with controls by DriSteem.
Operation of both the 2-position shutoff valve, and modulating control valve
is coordinated by the electronic controller provided in the DriSteem control
cabinet. A demand signal or space RH is sent to the DriSteem controller, and
the controller opens/closes the two steam valves based on the signal and
inputs including the steam dispersion panel fl oat switch, and (optionally) a duct
air fl ow switch and humidity high limit control.
Note: The Ultra-sorb XV control cabinet utilizes the same control board as other
DriSteem products, when confi gured as a Vapor-logic controller. The Ultra-sorb
XV application fi rmware is different from Vapor-logic control. Board wiring
terminal connections do not have the same functions as used for the Vapor-
logic controller. Please refer to the wiring diagram included with the unit for
proper wiring. Field confi guration of the Ultra-sorb XV board is as described
in the following paragraphs. Adjust the Vapor-logic control signals and setting
from the Vapor-logic keypad interface or web server. Refer to the Vapor-logic
IOM for further details.
INSTALLATION
Important:
Failure to follow these wiring procedures can
result in erratic operation or failure.
This product has been tested at the factory for
proper operation. Product failures resulting from
faulty handling, incorrect wiring, or shorting of
wires together on external components are not
covered under your DriSteem warranty. Review
information and di a grams before proceeding.
WARNING
Electric shock hazard
Only qualifi ed electrical personnel
should perform fi eld wiring installation
procedures. Improper wiring or contact
with energized circuits can cause
property damage, severe personal
injury, or death as a result of electric
shock and/or fi re.
Do not open control cabinet or
subpanel access panels until electrical
power is disconnected.
CAUTION
Damage from debris
When drilling penetrations in the
control cabinet, protect all internal
components from debris, and vacuum
out the control cabinet when fi nished.
Failure to comply with this directive
can damage sensitive electronic
com po nents, cause erratic operation
or failure, and void your DriSteem
warranty.
