“Go from Pneumatic to DDC in 20 minutes” Traditional pneumatic thermostats are manual devices which do not allow for remote readings, diagnostics, or setpoint control. This means costly maintenance, wasted energy, and hot/cold calls by uncomfortable occupants.
Traditionally, these problems could only be overcome by replacing the system with a new Direct Digital Control (DDC) system, a time-consuming process which disturbs occupants and costs $2,000 – $3,000 per thermostat zone.
Cypress Envirosystems’ patented Wireless Pneumatic Thermostat (WPT) offers virtually the same functionality as traditional rip-and-replace DDC thermostats but can be installed in as little as 20 minutes for a fraction of the cost. The WPT can operate as a standalone system or can integrate with existing building automation systems via BACnet/IP (e.g. Siemens, Honeywell, Johnson Controls, and Schneider) .
2-3 year payback
20-30% energy savings
Easier and faster maintenance
Improved occupant comfort
20-60% fewer hot/cold calls
Auto-demand response and energy efficiency utility incentives
Download Daily Performance Log for SMARTPneumatics
Setting Up Schedules in Green Box Controller
Calibrating the WPT
Calibrating the Summer/Winter Wireless Pneumatic Thermostat
Stored WPT Calibration Point
WPT Diagnostic Menu
Force Discover Command
WSTM Payback Calculator2 (years)
1. Orifice diameter should not be confused with pipe diameter. Consult the steam trap manufacturer if orifice size is not known.
2. Calculations are theoretical estimates and actual results will vary. Payback calculation includes avoided lost steam and inspection labor. Benefits from avoided damage resulting from blocked traps are not included in model. The formula used for steam loss in this model is: L=24.24*Pa*D2. Where L=pounds/hour, Pa=Pgauge + Patm , D=orifice diameter. http://www1.eere.energy.gov/manufacturing/tech_deployment/pdfs/steam_pressure_reduction.pdf
3. Actual WSTM installed cost will vary based on volume and integrator.
4. Refers to the manual inspections of steam traps that are currently being done at the facility. The frequency determines the potential avoided failure time when using the WSTM.
5. The frequency and cost of inspection determine the labor savings enabled by the WSTM.
6. The failure rate per year should be based on historical data from the facility. 15-20% failure rates per year are typical. In unmaintained facilities, the failure rate can be much higher: http://www1.eere.energy.gov/femp/pdfs/om_combustion.pdf