35
ULTRA-SORB MODEL XV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Table 26-1:
Ultra-sorb Model XV troubleshooting guide (continued)
Problem
Possible cause
Action
Space humidity will not
rise to humidistat set point
(pneumatic controls)
• Air leak in actuator
• Repair or replace diaphragm.
• Control air pressure is too low
• Adjust pressure.
•
Temperature control switch not allowing
modulating steam valve to operate
•
Consult DriSteem to assess whether installed panel is correct for
application.
Condensate collects in
duct
•
Foreign matter preventing control valve from
closing
• Clean or replace valve.
•
Panel is mounted too close to internal devices
(dampers, turning vanes, etc.) in duct
•
Move panel to a point further upstream from internal devices.
See “Selecting the location” on Page 16.
•
More dispersion tubes shortens non-wetting distance. Consult
DriSteem to determine the total number of tubes required.
•
Uninsulated duct passing through unheated
area (low duct surface temperature)
• Insulate ductwork.
Troubleshooting
MAINTENANCE
