6
OVERVIEW
The RTULink control board is designed to provide a better
understanding of building HVAC operation. It provides
control variability ranging from monitor only to full control.
Regardless of the level of control that is being utilized, the
board relays all information gathered to the CASLink cloud-
based monitoring and control website. Since CASLink is
cloud-based, it allows all of the features and data offered by
the RTULink to be accessed from any internet-capable
device. Email alerts are generated when scenarios arise
that are detrimental to RTU components or indicate that the
RTU is not operating as designed.
HVAC equipment is currently a set-it-and-forget-it type
product with little to no human interaction after the initial
startup (aside from fixing units when they stop working).
The RTULink breaks this standard by offering remote and
dynamic monitoring, control, and scheduling. Components
whose processes were previously invisible, such as
damper, economizer, powered exhaust, demand control
ventilation, and more, are exposed and controllable
through the RTULink.
If the equipment were to fail under RTULink control, the
personnel in charge of HVAC equipment can remotely
troubleshoot by viewing historical data. Often times a
solution for the failure can be found before repairs are
scheduled, saving time and money.
shows the RTULink board layout. Become
familiar with the pin labeling as this terminology will be
referenced throughout the remainder of this document. In
, the left side of the RTULink is the
“THERMOSTAT” side of the board and will be referred as
such throughout the document. In
, the right side
of the RTULink is the “RTU” side of the board and will be
referred to as such throughout the document.
For more information on CASLink, refer to the latest
version of CASLink
“Building Management O&IM”.
Figure 1. RTULink Layout
Summary of Contents for RTULink
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Page 52: ...52 APPENDIX C Fixed Dry Bulb Economizer Figure 34 Fixed Dry Bulb Economizer Operation...
Page 53: ...53 Differential Dry Bulb Economizer Figure 35 Differential Dry Bulb Economizer Operation...
Page 54: ...54 Fixed Enthalpy Economizer Figure 36 Fixed Enthalpy Economizer Operation...
Page 55: ...55 Differential Enthalpy Economizer Figure 37 Differential Enthalpy Economizer Operation...