Technical Section
Pressure Sensor Cleaning
Accumulations of dust or dirt can be removed with a dry soft-bristled brush (such as an artist's
brush). If necessary, water, alcohol, acetone, or trichlorethane may be used as a solvent to
remove other contaminants.
Use extreme care when cleaning the velocity sensors. The ceramic sensor may break if
excessive pressure is applied, if sensor is scraped to remove contaminants, or if the cleaning
apparatus abruptly impacts the sensor.
If you are using a liquid to clean the sensor, turn off power to the RPC30
PresSura Controller.
Do not use compressed air to clean the velocity sensors.
Do not attempt to scrape contaminants from the velocity sensors. The velocity
sensors are quite durable; however, scraping may cause mechanical damage and
possibly break the sensor. Mechanical damage due to scraping voids the pressure
sensor warranty.
Display Screen Cleaning
Accumulations of dust or dirt can be removed with a dry soft cloth. If necessary, Isopropyl, or
Ethyl Alcohol may be used to remove other contaminants.
Replacement Parts
All components of the Room Pressure Control system are field replaceable. Contact TSI or your
nearest TSI Manufacturer's Representative for replacement part pricing and delivery.
Model RPC30 PresSura Room Pressure Controller
Troubleshooting Section
The Model RPC30 Room Pressure Controller is designed to be trouble free. However, installation
problems or interaction with other HVAC components may cause system problems. The system
is easy to troubleshoot if an organized approach to evaluate the system is taken. Troubleshooting
is broken down into hardware (mechanical) and software problems. Hardware problems deal with
the physical installation of the device. Hardware problems include wiring problems, incorrectly
installed equipment, and add-ons or non-TSI equipment. Software problems include control
problems, configuration problems, or interaction problems with the HVAC system.
The hardware test described in this section determines that all TSI mechanical components are
functioning correctly. The hardware test requires the diagnostics menu items to be accessed. If
you are unfamiliar with the controller menus, see Software Programming for keystroke procedure.
Troubleshooting the majority of problems is usually quick if the hardware test is followed.
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